Change allowed version series to 0.5

Fix garbled Japanese/Unicode text in armature and mesh dropdowns

CHANGELOG_NON_ASCII_FIX.md

@@ -0,0 +1,79 @@
+# Fix for Garbled Japanese/Non-ASCII Text in Dropdowns
+
+## Problem
+Japanese, Korean, Chinese, and other non-ASCII characters were displaying as garbled/corrupted text in dropdown menus for:
+- Armature selection in Quick Access panel
+- Mesh selection in Visemes panel
+
+This is a known issue with Blender's EnumProperty system when using dynamic callbacks that return Unicode strings.
+
+## Root Cause
+Blender's EnumProperty RNA system can have encoding issues when:
+1. The enum items function is called multiple times with changing data
+2. Unicode strings in display names aren't properly cached
+3. The internal C API receives the same Python string object in different states
+
+## Solution
+Implemented proper caching with invalidation for EnumProperty items:
+
+### Changes Made
+
+1. **core/common.py** - Enhanced `get_armature_list()` function
+   - Added cache key based on (name, pointer) tuples
+   - Cache is invalidated only when actual objects change
+   - Prevents Blender from re-encoding strings on every access
+   - Added `clear_enum_caches()` helper function
+
+2. **core/properties.py** - Enhanced `get_mesh_objects()` function  
+   - Added same caching mechanism as armature list
+   - Cache key based on mesh objects (name, pointer)
+   - Stable cache prevents encoding corruption
+
+3. **core/common.py** - `get_mesh_from_identifier()` helper
+   - Converts safe identifier back to mesh object
+   - Handles both new format (`MESH_{pointer}`) and legacy format
+   - Returns None if mesh not found
+
+4. **ui/visemes_panel.py** - Updated mesh retrieval
+   - Uses `get_mesh_from_identifier()` instead of direct lookup
+
+5. **functions/visemes.py** - Updated all mesh access points
+   - All operators now use the helper function consistently
+
+## Technical Details
+
+### ASCII-Safe Identifiers
+- Dropdown identifier: `ARM_{memory_pointer}` or `MESH_{memory_pointer}` (ASCII-safe, unique)
+- Dropdown display: Original object name (preserves Unicode characters)
+- Backwards compatibility: Falls back to direct name lookup
+
+### Caching Strategy
+The cache uses function attributes to store:
+- `_cache_key`: Tuple of (name, pointer) for all relevant objects
+- `_cached_items`: The actual list of enum items
+
+Cache is invalidated when:
+- Objects are added/removed
+- Objects are renamed
+- Object pointers change (object recreated)
+
+This ensures Blender's RNA system receives the exact same Python string objects on subsequent calls, preventing encoding corruption.
+
+## Testing
+
+To verify the fix works:
+1. Create armature/mesh objects with Japanese/Korean/Chinese names (e.g., "アバター", "아바타", "化身")
+2. Open Quick Access panel - armature dropdown should display correctly
+3. Open Visemes panel - mesh dropdown should display correctly
+4. Select items - operations should work with the selected objects
+5. Rename objects - dropdowns should update and still display correctly
+
+## Related Files
+- `core/properties.py` - Property definitions and mesh enumeration
+- `core/common.py` - Common utility functions and armature enumeration
+- `ui/visemes_panel.py` - Visemes UI panel
+- `ui/quick_access_panel.py` - Quick Access UI panel
+- `functions/visemes.py` - Viseme operators
+
+## Note on prop_search
+The `prop_search` widget used for shape key/bone selection inherently handles non-ASCII characters correctly since it searches Blender's internal data structures directly, not custom enum properties.

README.md

@@ -1,4 +1,5 @@
 # Avatar Toolkit
+We are aware the wiki is down and are working on a new one, please don't report this.
 
 ## Avatar Toolkit is in Alpha, There will be issues, please ensure you report them!. If using a Alpha plugin isn't your fancy you can find Cats Blender Plugin [HERE](https://github.com/unofficalcats/Cats-Blender-Plugin-Unofficial-)!
 #### Avatar Toolkit is in Alpha and will contain issues, please ensure you report them!
@@ -35,7 +36,6 @@ See everything Avatar Toolkit has ot offer [here](https://avatartoolkit.xyz/lega
 - Blender 4.5 or newer is required
 - Blender 4.5 is the current recommended version
 
-
 2) Python Requirements
 - If using a custom Python installation with Blender, ensure NumPy is installed
 - Default Blender installation includes all required packages
@@ -44,6 +44,16 @@ See everything Avatar Toolkit has ot offer [here](https://avatartoolkit.xyz/lega
 - Download Blender directly from https://blender.org
 - Use Blender 4.5 for the best experience
 
+#### Unfortunately, due to the increased number of people complaining to me (yes, we get DMs about this) that AT or CATS is broken when it's not, we are going to have to be a bit more strict about which Blender releases we will provide support for.
+
+#### We only support the following Blender releases:
+- Steam release
+- The Blender website releases (there are downloads for Linux, Mac, and Windows)
+
+#### We do not support the following what so ever and we will not give help if your running the following.
+- We do not support the Windows Store due to it causing issues, and we also don't support the Snap Store for Linux.
+- We do not support package manager releases on Linux. This is because package managers are normally run by the distro, and a lot of the time the distro will build Blender themselves and make their own changes which are not sanctioned by Blender (for example, bundling a newer version of Python which tends to break plugins). If you report a bug from anything apart from the Blender versions we support, you will be told we can't help you from now on.
+
 #### Additional Plugins Requirements.
 Currently None.
 

blender_manifest.toml

@@ -3,23 +3,23 @@
 schema_version = "1.0.0"
 
 id = "avatar_toolkit"
-version = "0.4.0"
+version = "0.5.2"
 name = "Avatar Toolkit"
 tagline = "A modern tool for importing and optimizing models for VRChat, Resonite, and other similar games."
 maintainer = "Team NekoNeo"
 type = "add-on"
 
-blender_version_min = "4.5.0"
+blender_version_min = "5.0.0"
 
 license = [
   "SPDX:GPL-3.0-or-later",
 ]
 
 wheels = [
-  "./wheels/lz4-4.4.3-cp311-cp311-macosx_11_0_arm64.whl",
-  "./wheels/lz4-4.3.3-cp311-cp311-macosx_10_9_x86_64.whl",
-  "./wheels/lz4-4.4.3-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl",
-  "./wheels/lz4-4.4.3-cp311-cp311-win_amd64.whl"
+  "./wheels/lz4-4.4.5-cp311-cp311-macosx_11_0_arm64.whl",
+  "./wheels/lz4-4.4.5-cp311-cp311-macosx_10_9_x86_64.whl",
+  "./wheels/lz4-4.4.5-cp311-cp311-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl",
+  "./wheels/lz4-4.4.5-cp311-cp311-win_amd64.whl"
 ]
 
 [permissions]

core/addon_preferences.py

@@ -63,6 +63,6 @@ def get_addon_preferences(context):
 # Initialize preferences if the file doesn't exist
 if not os.path.exists(PREFERENCES_FILE):
     save_preference("language", 0)  # Set default language to 0 (auto)
-    save_preference("validation_mode", "STRICT")  # Set default validation mode
+    save_preference("validation_mode", "NONE")  # Set default validation mode to NONE (off by default)
     save_preference("enable_logging", False) # Set default logging mode
     save_preference("highlight_problem_bones", True) # Set default bone highlighting

core/armature_validation.py

@@ -15,6 +15,26 @@ from ..core.dictionaries import (
 )
 from ..core.logging_setup import logger
 
+def is_pmx_model(armature: Object) -> bool:
+    """
+    Check if the armature is a PMX/MMD model.
+    PMX models have an mmd_type attribute set to 'ROOT' on the root object.
+    """
+    if not armature:
+        return False
+    
+    # Check if armature itself has mmd_type set to ROOT
+    if hasattr(armature, 'mmd_type') and armature.mmd_type == 'ROOT':
+        return True
+    
+    # Check if parent has mmd_type set to ROOT (parent container model)
+    if hasattr(armature, 'parent') and armature.parent:
+        parent = armature.parent
+        if hasattr(parent, 'mmd_type') and parent.mmd_type == 'ROOT':
+            return True
+    
+    return False
+
 def validate_armature(armature: Object, detailed_messages: bool = False, override_mode: Optional[str] = None) -> Union[Tuple[bool, List[str], bool], Tuple[bool, List[str], bool, List[str], List[str], List[str]]]:
     """
     Validates armature and returns validation results
@@ -27,9 +47,8 @@ def validate_armature(armature: Object, detailed_messages: bool = False, overrid
     scale_messages: List[str] = []
     
     # Check if this is a PMX model
-    is_pmx_model = False
-    if armature and hasattr(armature, 'mmd_type') or (hasattr(armature, 'parent') and armature.parent and hasattr(armature.parent, 'mmd_type')):
-        is_pmx_model = True
+    pmx_model = is_pmx_model(armature)
+    if pmx_model:
         logger.debug("Detected PMX model, using specialized validation")
     
     if validation_mode == 'NONE':
@@ -157,7 +176,7 @@ def validate_armature(armature: Object, detailed_messages: bool = False, overrid
             non_standard_messages.append(t("Armature.validation.standardize_note.line3"))
     
     # Special handling for PMX models
-    if is_pmx_model:
+    if pmx_model:
         logger.info("PMX model detected, applying specialized validation")
         # For PMX models, we'll be more lenient with validation
         # and provide specific guidance for these models
@@ -783,3 +802,44 @@ class AvatarToolkit_OT_ClearBoneHighlighting(Operator):
         logger.info("Bone highlighting cleared")
         self.report({'INFO'}, t("Validation.highlighting_cleared"))
         return {'FINISHED'}
+
+class AvatarToolkit_OT_ValidateArmatureManual(Operator):
+    """Manually validate armature and show results"""
+    bl_idname = "avatar_toolkit.validate_armature_manual"
+    bl_label = t("Validation.validate_now", "Validate Armature Now")
+    bl_description = t("Validation.validate_now_desc", "Run armature validation and display detailed results")
+    
+    @classmethod
+    def poll(cls, context):
+        return get_active_armature(context) is not None
+    
+    def execute(self, context):
+        armature = get_active_armature(context)
+        if not armature:
+            logger.warning("No active armature found for validation")
+            self.report({'ERROR'}, t("Validation.no_armature"))
+            return {'CANCELLED'}
+        
+        logger.info(f"Running manual validation for armature: {armature.name}")
+        
+        # Clear the validation cache to force a refresh
+        from ..ui.quick_access_panel import clear_armature_caches
+        clear_armature_caches()
+        
+        # Toggle the show_validation_results flag to display results
+        props = context.scene.avatar_toolkit
+        props.show_validation_results = True
+        
+        # Run validation
+        is_valid, messages, is_acceptable = validate_armature(armature, detailed_messages=False)
+        
+        if is_valid:
+            if is_acceptable:
+                self.report({'INFO'}, t("Armature.validation.acceptable_standard.success"))
+            else:
+                self.report({'INFO'}, t("QuickAccess.valid_armature"))
+        else:
+            self.report({'WARNING'}, t("Validation.status.failed"))
+        
+        logger.info("Manual validation complete")
+        return {'FINISHED'}

core/common.py

@@ -92,23 +92,132 @@ class ProgressTracker:
 
 def get_active_armature(context: Context) -> Optional[Object]:
     """Get the currently selected armature from Avatar Toolkit properties"""
-    armature_name = str(context.scene.avatar_toolkit.active_armature)
-    if armature_name and armature_name != 'NONE':
-        return bpy.data.objects.get(armature_name)
+    try:
+        # Get the safe identifier from the enum property
+        armature_id = context.scene.avatar_toolkit.active_armature
+        
+        if not armature_id or armature_id == 'NONE':
+            return None
+        
+        # The identifier format is "ARM_{pointer_value}"
+        if armature_id.startswith('ARM_'):
+            try:
+                pointer_str = armature_id[4:] 
+                pointer_value = int(pointer_str)
+                
+                # Find the armature with this pointer value
+                for obj in context.scene.objects:
+                    if obj.type == 'ARMATURE' and obj.as_pointer() == pointer_value:
+                        return obj
+                
+                logger.warning(f"Armature with pointer {pointer_value} not found")
+            except (ValueError, AttributeError) as e:
+                logger.error(f"Failed to parse armature identifier: {e}")
+        
+        # Fallback for old-style identifiers (direct name)
+        # This handles backward compatibility
+        return bpy.data.objects.get(armature_id)
+        
+    except (UnicodeDecodeError, UnicodeEncodeError, AttributeError) as e:
+        # Handle encoding issues as a last resort
+        logger.warning(f"Encoding issue with active_armature property: {e}")
+    
+    # Final fallback: return active object if it's an armature, or first armature found
+    if context.view_layer.objects.active and context.view_layer.objects.active.type == 'ARMATURE':
+        return context.view_layer.objects.active
+    
+    for obj in context.scene.objects:
+        if obj.type == 'ARMATURE':
+            logger.info(f"Falling back to first armature found: {obj.name}")
+            return obj
+    
     return None
 
 def set_active_armature(context: Context, armature: Object) -> None:
-    """Set the active armature for Avatar Toolkit operations"""
-    context.scene.avatar_toolkit.active_armature = armature
+    """Set the active armature for Avatar Toolkit operations using safe identifier"""
+    if armature and armature.type == 'ARMATURE':
+        # Use the same safe identifier format as get_armature_list
+        safe_id = f"ARM_{armature.as_pointer()}"
+        context.scene.avatar_toolkit.active_armature = safe_id
+    else:
+        context.scene.avatar_toolkit.active_armature = 'NONE'
+
+def get_mesh_from_identifier(mesh_id: str) -> Optional[Object]:
+    """Get mesh object from safe identifier
+    
+    Args:
+        mesh_id: Safe identifier in format "MESH_{pointer}" or direct object name
+    
+    Returns:
+        Mesh object or None if not found
+    """
+    if not mesh_id or mesh_id == 'NONE':
+        return None
+    
+    # Handle new-style identifiers (MESH_{pointer})
+    if mesh_id.startswith('MESH_'):
+        try:
+            pointer_str = mesh_id[5:]  # Remove "MESH_" prefix
+            target_pointer = int(pointer_str)
+            
+            # Search for object with matching pointer
+            for obj in bpy.data.objects:
+                if obj.type == 'MESH' and obj.as_pointer() == target_pointer:
+                    return obj
+        except (ValueError, AttributeError):
+            pass
+    
+    # Fallback for old-style identifiers (direct name)
+    return bpy.data.objects.get(mesh_id)
+
+def clear_enum_caches() -> None:
+    """Clear all enum property caches to force refresh of dropdown lists"""
+    if hasattr(get_armature_list, '_cache_key'):
+        delattr(get_armature_list, '_cache_key')
+    if hasattr(get_armature_list, '_cached_items'):
+        delattr(get_armature_list, '_cached_items')
 
 def get_armature_list(self: Optional[Any] = None, context: Optional[Context] = None) -> List[Tuple[str, str, str]]:
-    """Get list of all armature objects in the scene"""
+    """Get list of all armature objects in the scene
+    
+    Returns tuples of (identifier, display_name, description) where:
+    - identifier: ASCII-safe unique ID (uses object's memory address)
+    - display_name: The actual object name (can contain Japanese characters)
+    - description: Empty string
+    
+    Uses caching to prevent encoding issues with Blender's EnumProperty system
+    """
     if context is None:
         context = bpy.context
-    armatures = [(obj.name, obj.name, "") for obj in context.scene.objects if obj.type == 'ARMATURE']
+    
+    # Create a cache key based on armature objects in scene
+    armature_objects = [obj for obj in context.scene.objects if obj.type == 'ARMATURE']
+    cache_key = tuple((obj.name, obj.as_pointer()) for obj in armature_objects)
+    
+    # Check if we have a cached result
+    if hasattr(get_armature_list, '_cache_key') and get_armature_list._cache_key == cache_key:
+        if hasattr(get_armature_list, '_cached_items'):
+            return get_armature_list._cached_items
+    
+    # Build the list
+    armatures = []
+    for obj in armature_objects:
+        # Create a safe ASCII identifier using the object pointer
+        safe_id = f"ARM_{obj.as_pointer()}"
+        # Use the name directly - Blender should handle Unicode in display names
+        display_name = obj.name
+        armatures.append((safe_id, display_name, ""))
+    
     if not armatures:
-        return [('NONE', t("Armature.validation.no_armature"), '')]
-    return armatures
+        result = [('NONE', t("Armature.validation.no_armature"), '')]
+    else:
+        result = armatures
+    
+    # Cache the result
+    get_armature_list._cache_key = cache_key
+    get_armature_list._cached_items = result
+    
+    return result
   
 def auto_select_single_armature(context: Context) -> None:
     """Automatically select armature if only one exists in scene"""

core/dictionaries.py

@@ -881,7 +881,8 @@ non_standard_mappings = {
     'left_leg': [
         'mixamorig:LeftUpLeg', 'mixamorig_LeftUpLeg',
         'ORG-thigh.L', 'thigh.L',
-        'lThighBend', 'lThigh', 'UpperLeg.L'
+        'lThighBend', 'lThigh', 'UpperLeg.L',
+        'LeftUpperLeg'
     ],
     'left_knee': [
         'mixamorig:LeftLeg', 'mixamorig_LeftLeg',
@@ -896,13 +897,14 @@ non_standard_mappings = {
     'left_toe': [
         'mixamorig:LeftToeBase', 'mixamorig_LeftToeBase',
         'ORG-toe.L', 'toe.L',
-        'lToe', 'Toes.L'
+        'lToe', 'Toes.L', 'LeftToeBase'
     ],
     
     'right_leg': [
         'mixamorig:RightUpLeg', 'mixamorig_RightUpLeg',
         'ORG-thigh.R', 'thigh.R',
-        'rThighBend', 'rThigh', 'UpperLeg.R'
+        'rThighBend', 'rThigh', 'UpperLeg.R',
+        'RightUpperLeg'
     ],
     'right_knee': [
         'mixamorig:RightLeg', 'mixamorig_RightLeg',
@@ -917,7 +919,7 @@ non_standard_mappings = {
     'right_toe': [
         'mixamorig:RightToeBase', 'mixamorig_RightToeBase',
         'ORG-toe.R', 'toe.R',
-        'rToe', 'Toes.R'
+        'rToe', 'Toes.R', 'RightToeBase'
     ],
     
     'thumb_1_l': [

core/importers/importer.py

@@ -8,7 +8,6 @@ from bpy_extras.io_utils import ImportHelper
 from typing import Optional, Callable, Dict, List, Union, Set
 from ..common import clear_default_objects
 from ..translations import t
-from ..mmd.core.pmx.importer import PMXImporter
 import traceback
 
 # Configure logging
@@ -203,34 +202,31 @@ class AvatarToolKit_OT_Import(Operator, ImportHelper):
 
 def import_pmx_file(filepath: str) -> None:
     """
-    Import a PMX file using the MMD Tools PMXImporter
+    Import a PMX file using the MMD Tools import operator
     
     Args:
         filepath: Path to the PMX file
     """
     
-    # Default import settings
-    import_settings = {
-        "filepath": filepath,
-        "scale": 0.08, 
-        "types": {"MESH", "ARMATURE", "MORPHS", "DISPLAY"},
-        "clean_model": True,
-        "remove_doubles": False,
-        "fix_IK_links": True,
-        "ik_loop_factor": 3,  
-        "use_mipmap": True,
-        "sph_blend_factor": 1.0,
-        "spa_blend_factor": 1.0,
-        "rename_LR_bones": False,
-        "use_underscore": False,
-        "apply_bone_fixed_axis": False,
-    }
-    
-    # Create and execute the importer
-    importer = PMXImporter()
+    # Use the MMD Tools operator to import PMX files (CATS-compatible)
+    # Must pass files + directory like CATS does, not just filepath
     try:
-        importer.execute(**import_settings)
+        directory = os.path.dirname(filepath)
+        filename = os.path.basename(filepath)
+        
+        bpy.ops.mmd_tools.import_model('EXEC_DEFAULT',
+                                      files=[{'name': filename}],
+                                      directory=directory,
+                                      scale=0.08,
+                                      types={'MESH', 'ARMATURE', 'MORPHS', 'DISPLAY'},
+                                      clean_model=False,  # Disable cleaning to preserve morph indices
+                                      remove_doubles=False,
+                                      fix_ik_links=False,
+                                      ik_loop_factor=5,
+                                      apply_bone_fixed_axis=False,
+                                      rename_bones=False,
+                                      use_underscore=False)
         logger.info(f"Successfully imported PMX file: {filepath}")
-    except Exception:
-        logger.error(f"Failed to import PMX file: {traceback.format_exc()}", exc_info=True)
+    except (AttributeError, TypeError, ValueError) as e:
+        logger.error(f"Failed to import PMX file: {e}", exc_info=True)
         raise

core/logging_setup.py

@@ -33,9 +33,10 @@ def configure_logging(enabled: bool = False, level: str = "WARNING") -> None:
         logger.addHandler(handler)
         
         def error_with_traceback(msg, *args, **kwargs):
-            if isinstance(kwargs.get('exception', None), Exception):
+            # If exc_info is True, include traceback in the message
+            if kwargs.get('exc_info', False):
                 full_msg = f"{msg}\n{traceback.format_exc()}"
-                _original_error(full_msg, *args, **{**kwargs, 'exc_info': False})
+                _original_error(full_msg, *args, **{k: v for k, v in kwargs.items() if k != 'exc_info'})
             else:
                 _original_error(msg, *args, **kwargs)
             

core/mmd/bpyutils.py

@@ -1,18 +1,13 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2013 MMD Tools authors
+# This file is part of MMD Tools.
 
 import contextlib
-from typing import Generator, List, Optional, TypeVar, Any, Set, Tuple, Dict, Union
+import math
+from typing import Generator, List, Optional, TypeVar
 
+import bmesh
 import bpy
-from bpy.types import Object, Context, ID, Key, ShapeKey, FCurve, LayerCollection, Collection
-from bpy.types import AddonPreferences, Addon, WindowManager, Area, Region, Window
-
-from ..logging_setup import logger
+from mathutils import Matrix
 
 
 class Props:  # For API changes of only name changed properties
@@ -24,7 +19,7 @@ class Props:  # For API changes of only name changed properties
 
 
 class __EditMode:
-    def __init__(self, obj: Object):
+    def __init__(self, obj):
         if not isinstance(obj, bpy.types.Object):
             raise ValueError
         self.__prevMode = obj.mode
@@ -34,10 +29,10 @@ class __EditMode:
             if obj.mode != "EDIT":
                 bpy.ops.object.mode_set(mode="EDIT")
 
-    def __enter__(self) -> Any:
+    def __enter__(self):
         return self.__obj.data
 
-    def __exit__(self, type: Any, value: Any, traceback: Any) -> None:
+    def __exit__(self, exc_type, exc_value, traceback):
         if self.__prevMode == "EDIT":
             bpy.ops.object.mode_set(mode="OBJECT")  # update edited data
         bpy.ops.object.mode_set(mode=self.__prevMode)
@@ -45,43 +40,46 @@ class __EditMode:
 
 
 class __SelectObjects:
-    def __init__(self, active_object: Object, selected_objects: Optional[List[Object]] = None):
+    def __init__(self, active_object: bpy.types.Object, selected_objects: Optional[List[bpy.types.Object]] = None):
         if not isinstance(active_object, bpy.types.Object):
             raise ValueError
         try:
             bpy.ops.object.mode_set(mode="OBJECT")
         except Exception:
-            logger.debug("Failed to set object mode")
             pass
 
-        context = FnContext.ensure_context()
+        contenxt = FnContext.ensure_context()
 
-        for i in context.selected_objects:
+        for i in contenxt.selected_objects:
             i.select_set(False)
 
         self.__active_object = active_object
-        self.__selected_objects = tuple(set(selected_objects) | set([active_object])) if selected_objects else (active_object,)
+        self.__selected_objects = tuple(set(selected_objects) | {active_object}) if selected_objects else (active_object,)
 
         self.__hides: List[bool] = []
         for i in self.__selected_objects:
             self.__hides.append(i.hide_get())
-            FnContext.select_object(context, i)
-        FnContext.set_active_object(context, active_object)
+            FnContext.select_object(contenxt, i)
+        FnContext.set_active_object(contenxt, active_object)
 
-    def __enter__(self) -> Object:
+    def __enter__(self) -> bpy.types.Object:
         return self.__active_object
 
-    def __exit__(self, type: Any, value: Any, traceback: Any) -> None:
-        for i, j in zip(self.__selected_objects, self.__hides):
+    def __exit__(self, exc_type, exc_value, traceback):
+        for i, j in zip(self.__selected_objects, self.__hides, strict=False):
+            try:
                 i.hide_set(j)
+            except ReferenceError:
+                # Object may no longer exist, so skip restoring hidden state.
+                pass
 
 
-def setParent(obj: Object, parent: Object) -> None:
+def setParent(obj, parent):
     with select_object(parent, objects=[parent, obj]):
         bpy.ops.object.parent_set(type="OBJECT", xmirror=False, keep_transform=False)
 
 
-def setParentToBone(obj: Object, parent: Object, bone_name: str) -> None:
+def setParentToBone(obj, parent, bone_name):
     with select_object(parent, objects=[parent, obj]):
         bpy.ops.object.mode_set(mode="POSE")
         parent.data.bones.active = parent.data.bones[bone_name]
@@ -89,7 +87,7 @@ def setParentToBone(obj: Object, parent: Object, bone_name: str) -> None:
         bpy.ops.object.mode_set(mode="OBJECT")
 
 
-def edit_object(obj: Object) -> __EditMode:
+def edit_object(obj):
     """Set the object interaction mode to 'EDIT'
 
     It is recommended to use 'edit_object' with 'with' statement like the following code.
@@ -100,7 +98,7 @@ def edit_object(obj: Object) -> __EditMode:
     return __EditMode(obj)
 
 
-def select_object(obj: Object, objects: Optional[List[Object]] = None) -> __SelectObjects:
+def select_object(obj: bpy.types.Object, objects: Optional[List[bpy.types.Object]] = None):
     """Select objects.
 
     It is recommended to use 'select_object' with 'with' statement like the following code.
@@ -109,27 +107,26 @@ def select_object(obj: Object, objects: Optional[List[Object]] = None) -> __Sele
        with select_object(obj):
            some functions...
     """
-    # TODO: Reimplement with bpy.context.temp_override (If it ain't broke, don't fix it.)
+    # TODO: Consider reimplementing with bpy.context.temp_override,
+    #       but note that Blender's new API has stability issues.
+    #       temp_override is prone to crashes, making the current approach safer.
+    #       If it ain't broke, don't fix it.
     return __SelectObjects(obj, objects)
 
 
-def duplicateObject(obj: Object, total_len: int) -> List[Object]:
+def duplicateObject(obj, total_len):
     return FnContext.duplicate_object(FnContext.ensure_context(), obj, total_len)
 
 
-def createObject(name: str = "Object", object_data: Optional[ID] = None, target_scene: Optional[bpy.types.Scene] = None) -> Object:
+def createObject(name="Object", object_data=None, target_scene=None):
     context = FnContext.ensure_context(target_scene)
     return FnContext.set_active_object(context, FnContext.new_and_link_object(context, name, object_data))
 
 
-def makeSphere(segment: int = 8, ring_count: int = 5, radius: float = 1.0, target_object: Optional[Object] = None) -> Object:
-    import bmesh
-
+def makeSphere(segment=8, ring_count=5, radius=1.0, target_object=None):
     if target_object is None:
-        target_object = createObject(name="Sphere")
-        logger.debug(f"Created new sphere object: {target_object.name}")
-    else:
-        logger.debug(f"Using existing object for sphere: {target_object.name}")
+        mesh_data = bpy.data.meshes.new("Sphere")
+        target_object = createObject(name="Sphere", object_data=mesh_data)
 
     mesh = target_object.data
     bm = bmesh.new()
@@ -146,15 +143,10 @@ def makeSphere(segment: int = 8, ring_count: int = 5, radius: float = 1.0, targe
     return target_object
 
 
-def makeBox(size: Tuple[float, float, float] = (1, 1, 1), target_object: Optional[Object] = None) -> Object:
-    import bmesh
-    from mathutils import Matrix
-
+def makeBox(size=(1, 1, 1), target_object=None):
     if target_object is None:
-        target_object = createObject(name="Box")
-        logger.debug(f"Created new box object: {target_object.name}")
-    else:
-        logger.debug(f"Using existing object for box: {target_object.name}")
+        mesh_data = bpy.data.meshes.new("Box")
+        target_object = createObject(name="Box", object_data=mesh_data)
 
     mesh = target_object.data
     bm = bmesh.new()
@@ -170,16 +162,10 @@ def makeBox(size: Tuple[float, float, float] = (1, 1, 1), target_object: Optiona
     return target_object
 
 
-def makeCapsule(segment: int = 8, ring_count: int = 2, radius: float = 1.0, height: float = 1.0, target_object: Optional[Object] = None) -> Object:
-    import math
-    import bmesh
-
+def makeCapsule(segment=8, ring_count=2, radius=1.0, height=1.0, target_object=None):
     if target_object is None:
-        target_object = createObject(name="Capsule")
-        logger.debug(f"Created new capsule object: {target_object.name}")
-    else:
-        logger.debug(f"Using existing object for capsule: {target_object.name}")
-        
+        mesh_data = bpy.data.meshes.new("Capsule")
+        target_object = createObject(name="Capsule", object_data=mesh_data)
     height = max(height, 1e-3)
 
     mesh = target_object.data
@@ -188,8 +174,11 @@ def makeCapsule(segment: int = 8, ring_count: int = 2, radius: float = 1.0, heig
     top = (0, 0, height / 2 + radius)
     verts.new(top)
 
-    # f = lambda i: radius*i/ring_count
-    f = lambda i: radius * math.sin(0.5 * math.pi * i / ring_count)
+    # def f(i):
+    #     return radius * i / ring_count
+    def f(i):
+        return radius * math.sin(0.5 * math.pi * i / ring_count)
+
     for i in range(ring_count, 0, -1):
         z = f(i - 1)
         t = math.sqrt(radius**2 - z**2)
@@ -238,10 +227,10 @@ def makeCapsule(segment: int = 8, ring_count: int = 2, radius: float = 1.0, heig
 
 
 class TransformConstraintOp:
-    __MIN_MAX_MAP: Dict[Union[str, Tuple[str, str]], Union[str, Tuple[str, ...]]] = {"ROTATION": "_rot", "SCALE": "_scale"}
+    __MIN_MAX_MAP = {"ROTATION": "_rot", "SCALE": "_scale"}
 
     @staticmethod
-    def create(constraints: bpy.types.ObjectConstraints, name: str, map_type: str) -> bpy.types.TransformConstraint:
+    def create(constraints, name, map_type):
         c = constraints.get(name, None)
         if c and c.type != "TRANSFORM":
             constraints.remove(c)
@@ -259,7 +248,7 @@ class TransformConstraintOp:
         return c
 
     @classmethod
-    def min_max_attributes(cls, map_type: str, name_id: str = "") -> Tuple[str, ...]:
+    def min_max_attributes(cls, map_type, name_id=""):
         key = (map_type, name_id)
         ret = cls.__MIN_MAX_MAP.get(key, None)
         if ret is None:
@@ -269,7 +258,7 @@ class TransformConstraintOp:
         return ret
 
     @classmethod
-    def update_min_max(cls, constraint: bpy.types.TransformConstraint, value: float, influence: Optional[float] = 1) -> None:
+    def update_min_max(cls, constraint, value, influence=1):
         c = constraint
         if not c or c.type != "TRANSFORM":
             return
@@ -293,14 +282,14 @@ class FnObject:
         raise NotImplementedError("This class is not expected to be instantiated.")
 
     @staticmethod
-    def mesh_remove_shape_key(mesh_object: Object, shape_key: ShapeKey) -> None:
+    def mesh_remove_shape_key(mesh_object: bpy.types.Object, shape_key: bpy.types.ShapeKey):
         assert isinstance(mesh_object.data, bpy.types.Mesh)
 
-        key: Key = shape_key.id_data
+        key: bpy.types.Key = shape_key.id_data
         assert key == mesh_object.data.shape_keys
 
         if mesh_object.animation_data is not None:
-            fc_curve: FCurve
+            fc_curve: bpy.types.FCurve
             for fc_curve in mesh_object.animation_data.drivers:
                 if not fc_curve.data_path.startswith(shape_key.path_from_id()):
                     continue
@@ -324,35 +313,43 @@ class FnContext:
         raise NotImplementedError("This class is not expected to be instantiated.")
 
     @staticmethod
-    def ensure_context(context: Optional[Context] = None) -> Context:
+    def ensure_context(context: Optional[bpy.types.Context] = None) -> bpy.types.Context:
         return context or bpy.context
 
     @staticmethod
-    def get_active_object(context: Context) -> Optional[Object]:
+    def get_active_object(context: bpy.types.Context) -> Optional[bpy.types.Object]:
+        # Added defensive programming for get methods
+        # Related to: https://github.com/MMD-Blender/blender_mmd_tools_local/issues/176
+        if context is None or not hasattr(context, "active_object"):
+            return None
         return context.active_object
 
     @staticmethod
-    def set_active_object(context: Context, obj: Object) -> Object:
+    def set_active_object(context: bpy.types.Context, obj: bpy.types.Object) -> bpy.types.Object:
         context.view_layer.objects.active = obj
         return obj
 
     @staticmethod
-    def set_active_and_select_single_object(context: Context, obj: Object) -> Object:
+    def set_active_and_select_single_object(context: bpy.types.Context, obj: bpy.types.Object) -> bpy.types.Object:
         return FnContext.set_active_object(context, FnContext.select_single_object(context, obj))
 
     @staticmethod
-    def get_scene_objects(context: Context) -> bpy.types.SceneObjects:
+    def get_scene_objects(context: bpy.types.Context) -> bpy.types.SceneObjects:
+        # Added defensive programming for get methods
+        # Added for consistency with get_active_object
+        if context is None or not hasattr(context, "scene") or not hasattr(context.scene, "objects"):
+            return []
         return context.scene.objects
 
     @staticmethod
-    def ensure_selectable(context: Context, obj: Object) -> Object:
+    def ensure_selectable(context: bpy.types.Context, obj: bpy.types.Object) -> bpy.types.Object:
         obj.hide_viewport = False
         obj.hide_select = False
         obj.hide_set(False)
 
         if obj not in context.selectable_objects:
 
-            def __layer_check(layer_collection: LayerCollection) -> bool:
+            def __layer_check(layer_collection: bpy.types.LayerCollection) -> bool:
                 for lc in layer_collection.children:
                     if __layer_check(lc):
                         lc.hide_viewport = False
@@ -374,44 +371,44 @@ class FnContext:
         return obj
 
     @staticmethod
-    def select_object(context: Context, obj: Object) -> Object:
+    def select_object(context: bpy.types.Context, obj: bpy.types.Object) -> bpy.types.Object:
         FnContext.ensure_selectable(context, obj).select_set(True)
         return obj
 
     @staticmethod
-    def select_objects(context: Context, *objects: Object) -> List[Object]:
+    def select_objects(context: bpy.types.Context, *objects: bpy.types.Object) -> List[bpy.types.Object]:
         return [FnContext.select_object(context, obj) for obj in objects]
 
     @staticmethod
-    def select_single_object(context: Context, obj: Object) -> Object:
+    def select_single_object(context: bpy.types.Context, obj: bpy.types.Object) -> bpy.types.Object:
         for i in context.selected_objects:
             if i != obj:
                 i.select_set(False)
         return FnContext.select_object(context, obj)
 
     @staticmethod
-    def link_object(context: Context, obj: Object) -> Object:
+    def link_object(context: bpy.types.Context, obj: bpy.types.Object) -> bpy.types.Object:
         context.collection.objects.link(obj)
         return obj
 
     @staticmethod
-    def new_and_link_object(context: Context, name: str, object_data: Optional[ID]) -> Object:
+    def new_and_link_object(context: bpy.types.Context, name: str, object_data: Optional[bpy.types.ID]) -> bpy.types.Object:
         return FnContext.link_object(context, bpy.data.objects.new(name=name, object_data=object_data))
 
     @staticmethod
-    def duplicate_object(context: Context, object_to_duplicate: Object, target_count: int) -> List[Object]:
+    def duplicate_object(context: bpy.types.Context, object_to_duplicate: bpy.types.Object, target_count: int) -> List[bpy.types.Object]:
         """
         Duplicate object.
 
         This function duplicates the given object and returns a list of duplicated objects.
 
         Args:
-            context (Context): The context in which the duplication is performed.
-            object_to_duplicate (Object): The object to be duplicated.
+            context (bpy.types.Context): The context in which the duplication is performed.
+            object_to_duplicate (bpy.types.Object): The object to be duplicated.
             target_count (int): The desired count of duplicated objects.
 
         Returns:
-            List[Object]: A list of duplicated objects.
+            List[bpy.types.Object]: A list of duplicated objects.
 
         Raises:
             AssertionError: If the number of selected objects in the context is not equal to 1 or if the selected object is not the same as the object to be duplicated.
@@ -435,28 +432,27 @@ class FnContext:
                     last_selected_objects[i].select_set(True)
                 last_selected_objects = context.selected_objects
         assert len(result_objects) == target_count
-        logger.debug(f"Duplicated object {object_to_duplicate.name} to create {target_count} objects")
         return result_objects
 
     @staticmethod
-    def find_user_layer_collection_by_object(context: Context, target_object: Object) -> Optional[LayerCollection]:
+    def find_user_layer_collection_by_object(context: bpy.types.Context, target_object: bpy.types.Object) -> Optional[bpy.types.LayerCollection]:
         """
-        Finds the layer collection that contains the given target_object in the user's collections.
+        Find the layer collection that contains the given target_object in the user's collections.
 
         Args:
-            context (Context): The Blender context.
-            target_object (Object): The target object to find the layer collection for.
+            context (bpy.types.Context): The Blender context.
+            target_object (bpy.types.Object): The target object to find the layer collection for.
 
         Returns:
-            Optional[LayerCollection]: The layer collection that contains the target_object, or None if not found.
+            Optional[bpy.types.LayerCollection]: The layer collection that contains the target_object, or None if not found.
         """
-        scene_layer_collection: LayerCollection = context.view_layer.layer_collection
+        scene_layer_collection: bpy.types.LayerCollection = context.view_layer.layer_collection
 
-        def find_layer_collection_by_name(layer_collection: LayerCollection, name: str) -> Optional[LayerCollection]:
+        def find_layer_collection_by_name(layer_collection: bpy.types.LayerCollection, name: str) -> Optional[bpy.types.LayerCollection]:
             if layer_collection.name == name:
                 return layer_collection
 
-            child_layer_collection: LayerCollection
+            child_layer_collection: bpy.types.LayerCollection
             for child_layer_collection in layer_collection.children:
                 found = find_layer_collection_by_name(child_layer_collection, name)
                 if found is not None:
@@ -464,7 +460,7 @@ class FnContext:
 
             return None
 
-        user_collection: Collection
+        user_collection: bpy.types.Collection
         for user_collection in target_object.users_collection:
             found = find_layer_collection_by_name(scene_layer_collection, user_collection.name)
             if found is not None:
@@ -474,7 +470,7 @@ class FnContext:
 
     @staticmethod
     @contextlib.contextmanager
-    def temp_override_active_layer_collection(context: Context, target_object: Object) -> Generator[Context, None, None]:
+    def temp_override_active_layer_collection(context: bpy.types.Context, target_object: bpy.types.Object) -> Generator[bpy.types.Context, None, None]:
         """
         Context manager to temporarily override the active_layer_collection that contains the target object.
 
@@ -482,11 +478,11 @@ class FnContext:
         It ensures that the original active_layer_collection is restored after the context is exited.
 
         Args:
-            context (Context): The context in which the active_layer_collection will be overridden.
-            target_object (Object): The target object whose layer collection will be set as the active_layer_collection.
+            context (bpy.types.Context): The context in which the active_layer_collection will be overridden.
+            target_object (bpy.types.Object): The target object whose layer collection will be set as the active_layer_collection.
 
         Yields:
-            Context: The modified context with the active_layer_collection overridden.
+            bpy.types.Context: The modified context with the active_layer_collection overridden.
 
         Example:
             with FnContext.temp_override_active_layer_collection(context, target_object):
@@ -507,24 +503,24 @@ class FnContext:
                 context.view_layer.active_layer_collection = original_layer_collection
 
     @staticmethod
-    def __get_addon_preferences(context: Context) -> Optional[AddonPreferences]:
-        addon: Addon = context.preferences.addons.get(__package__, None)
+    def __get_addon_preferences(context: bpy.types.Context) -> Optional[bpy.types.AddonPreferences]:
+        addon: bpy.types.Addon = context.preferences.addons.get(__package__, None)
         return addon.preferences if addon else None
 
     @staticmethod
-    def get_addon_preferences_attribute(context: Context, attribute_name: str, default_value: ADDON_PREFERENCE_ATTRIBUTE_VALUE_TYPE = None) -> ADDON_PREFERENCE_ATTRIBUTE_VALUE_TYPE:
+    def get_addon_preferences_attribute(context: bpy.types.Context, attribute_name: str, default_value: ADDON_PREFERENCE_ATTRIBUTE_VALUE_TYPE = None) -> ADDON_PREFERENCE_ATTRIBUTE_VALUE_TYPE:
         return getattr(FnContext.__get_addon_preferences(context), attribute_name, default_value)
 
     @staticmethod
     def temp_override_objects(
-        context: Context,
-        window: Optional[Window] = None,
-        area: Optional[Area] = None,
-        region: Optional[Region] = None,
-        active_object: Optional[Object] = None,
-        selected_objects: Optional[List[Object]] = None,
-        **keywords: Any,
-    ) -> Generator[Context, None, None]:
+        context: bpy.types.Context,
+        window: Optional[bpy.types.Window] = None,
+        area: Optional[bpy.types.Area] = None,
+        region: Optional[bpy.types.Region] = None,
+        active_object: Optional[bpy.types.Object] = None,
+        selected_objects: Optional[List[bpy.types.Object]] = None,
+        **keywords,
+    ) -> Generator[bpy.types.Context, None, None]:
         if active_object is not None:
             keywords["active_object"] = active_object
             keywords["object"] = active_object

core/mmd/core/bone.py

@@ -1,44 +1,37 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2015 MMD Tools authors
+# This file is part of MMD Tools.
 
 import math
-from typing import TYPE_CHECKING, Iterable, Optional, Set, List, Dict, Tuple, Any, Union, cast
+from typing import TYPE_CHECKING, Iterable, Optional, Set
 
 import bpy
 from mathutils import Vector
-from bpy.types import Object, EditBone, PoseBone, Constraint, Armature, BoneCollection
 
 from .. import bpyutils
 from ..bpyutils import TransformConstraintOp
 from ..utils import ItemOp
-from ....core.logging_setup import logger
 
 if TYPE_CHECKING:
-    from ..properties.root import MMDRoot, MMDDisplayItemFrame
     from ..properties.pose_bone import MMDBone
+    from ..properties.root import MMDDisplayItemFrame, MMDRoot
 
 
-def remove_constraint(constraints: Any, name: str) -> bool:
-    """Remove a constraint by name if it exists"""
+def remove_constraint(constraints, name):
     c = constraints.get(name, None)
     if c:
         constraints.remove(c)
         return True
     return False
 
-def remove_edit_bones(edit_bones: bpy.types.ArmatureEditBones, bone_names: List[str]) -> None:
-    """Remove edit bones by name"""
+
+def remove_edit_bones(edit_bones, bone_names):
     for name in bone_names:
         b = edit_bones.get(name, None)
         if b:
             edit_bones.remove(b)
 
 
-BONE_COLLECTION_CUSTOM_PROPERTY_NAME = "mmd_tools"
+BONE_COLLECTION_CUSTOM_PROPERTY_NAME = "mmd_tools_local"
 BONE_COLLECTION_CUSTOM_PROPERTY_VALUE_SPECIAL = "special collection"
 BONE_COLLECTION_CUSTOM_PROPERTY_VALUE_NORMAL = "normal collection"
 BONE_COLLECTION_NAME_SHADOW = "mmd_shadow"
@@ -48,39 +41,33 @@ SPECIAL_BONE_COLLECTION_NAMES = [BONE_COLLECTION_NAME_SHADOW, BONE_COLLECTION_NA
 
 
 class FnBone:
-    AUTO_LOCAL_AXIS_ARMS: Tuple[str, ...] = ("左肩", "左腕", "左ひじ", "左手首", "右腕", "右肩", "右ひじ", "右手首")
-    AUTO_LOCAL_AXIS_FINGERS: Tuple[str, ...] = ("親指", "人指", "中指", "薬指", "小指")
-    AUTO_LOCAL_AXIS_SEMI_STANDARD_ARMS: Tuple[str, ...] = ("左腕捩", "左手捩", "左肩P", "左ダミー", "右腕捩", "右手捩", "右肩P", "右ダミー")
+    AUTO_LOCAL_AXIS_ARMS = ("左肩", "左腕", "左ひじ", "左手首", "右腕", "右肩", "右ひじ", "右手首")
+    AUTO_LOCAL_AXIS_FINGERS = ("親指", "人指", "中指", "薬指", "小指")
+    AUTO_LOCAL_AXIS_SEMI_STANDARD_ARMS = ("左腕捩", "左手捩", "左肩P", "左ダミー", "右腕捩", "右手捩", "右肩P", "右ダミー")
 
-    def __init__(self) -> None:
+    def __init__(self):
         raise NotImplementedError("This class cannot be instantiated.")
 
     @staticmethod
-    def find_pose_bone_by_bone_id(armature_object: Object, bone_id: int) -> Optional[PoseBone]:
-        """Find a pose bone by its bone ID"""
+    def find_pose_bone_by_bone_id(armature_object: bpy.types.Object, bone_id: int) -> Optional[bpy.types.PoseBone]:
         for bone in armature_object.pose.bones:
             if bone.mmd_bone.bone_id != bone_id:
                 continue
             return bone
-        logger.debug(f"Bone with ID {bone_id} not found in armature {armature_object.name}")
         return None
 
     @staticmethod
-    def __new_bone_id(armature_object: Object) -> int:
-        """Generate a new unique bone ID"""
+    def __new_bone_id(armature_object: bpy.types.Object) -> int:
         return max(b.mmd_bone.bone_id for b in armature_object.pose.bones) + 1
 
     @staticmethod
-    def get_or_assign_bone_id(pose_bone: PoseBone) -> int:
-        """Get the bone ID or assign a new one if not set"""
+    def get_or_assign_bone_id(pose_bone: bpy.types.PoseBone) -> int:
         if pose_bone.mmd_bone.bone_id < 0:
             pose_bone.mmd_bone.bone_id = FnBone.__new_bone_id(pose_bone.id_data)
-            logger.debug(f"Assigned new bone ID {pose_bone.mmd_bone.bone_id} to bone {pose_bone.name}")
         return pose_bone.mmd_bone.bone_id
 
     @staticmethod
-    def __get_selected_pose_bones(armature_object: Object) -> Iterable[PoseBone]:
-        """Get selected pose bones from the armature"""
+    def __get_selected_pose_bones(armature_object: bpy.types.Object) -> Iterable[bpy.types.PoseBone]:
         if armature_object.mode == "EDIT":
             bpy.ops.object.mode_set(mode="OBJECT")  # update selected bones
             bpy.ops.object.mode_set(mode="EDIT")  # back to edit mode
@@ -89,11 +76,9 @@ class FnBone:
         return (bones[b.name] for b in context_selected_bones if not bones[b.name].is_mmd_shadow_bone)
 
     @staticmethod
-    def load_bone_fixed_axis(armature_object: Object, enable: bool = True) -> None:
-        """Load fixed axis settings for selected bones"""
-        logger.debug(f"Loading bone fixed axis (enable={enable}) for {armature_object.name}")
+    def load_bone_fixed_axis(armature_object: bpy.types.Object, enable=True):
         for b in FnBone.__get_selected_pose_bones(armature_object):
-            mmd_bone = b.mmd_bone
+            mmd_bone: MMDBone = b.mmd_bone
             mmd_bone.enabled_fixed_axis = enable
             lock_rotation = b.lock_rotation[:]
             if enable:
@@ -108,91 +93,72 @@ class FnBone:
                 b.lock_location = b.lock_scale = (False, False, False)
 
     @staticmethod
-    def setup_special_bone_collections(armature_object: Object) -> Object:
-        """Set up special bone collections for MMD"""
-        armature = cast(Armature, armature_object.data)
+    def setup_special_bone_collections(armature_object: bpy.types.Object) -> bpy.types.Object:
+        armature: bpy.types.Armature = armature_object.data
         bone_collections = armature.collections
         for bone_collection_name in SPECIAL_BONE_COLLECTION_NAMES:
             if bone_collection_name in bone_collections:
                 continue
             bone_collection = bone_collections.new(bone_collection_name)
             FnBone.__set_bone_collection_to_special(bone_collection, is_visible=False)
-            logger.debug(f"Created special bone collection: {bone_collection_name}")
         return armature_object
 
     @staticmethod
-    def __is_mmd_tools_bone_collection(bone_collection: BoneCollection) -> bool:
-        """Check if a bone collection is an MMD Tools collection"""
+    def __is_mmd_tools_local_bone_collection(bone_collection: bpy.types.BoneCollection) -> bool:
         return BONE_COLLECTION_CUSTOM_PROPERTY_NAME in bone_collection
 
     @staticmethod
-    def __is_special_bone_collection(bone_collection: BoneCollection) -> bool:
-        """Check if a bone collection is a special MMD collection"""
-        return BONE_COLLECTION_CUSTOM_PROPERTY_VALUE_SPECIAL == bone_collection.get(BONE_COLLECTION_CUSTOM_PROPERTY_NAME)
+    def __is_special_bone_collection(bone_collection: bpy.types.BoneCollection) -> bool:
+        return bone_collection.get(BONE_COLLECTION_CUSTOM_PROPERTY_NAME) == BONE_COLLECTION_CUSTOM_PROPERTY_VALUE_SPECIAL
 
     @staticmethod
-    def __set_bone_collection_to_special(bone_collection: BoneCollection, is_visible: bool) -> None:
-        """Mark a bone collection as special"""
+    def __set_bone_collection_to_special(bone_collection: bpy.types.BoneCollection, is_visible: bool):
         bone_collection[BONE_COLLECTION_CUSTOM_PROPERTY_NAME] = BONE_COLLECTION_CUSTOM_PROPERTY_VALUE_SPECIAL
         bone_collection.is_visible = is_visible
 
     @staticmethod
-    def __is_normal_bone_collection(bone_collection: BoneCollection) -> bool:
-        """Check if a bone collection is a normal MMD collection"""
-        return BONE_COLLECTION_CUSTOM_PROPERTY_VALUE_NORMAL == bone_collection.get(BONE_COLLECTION_CUSTOM_PROPERTY_NAME)
+    def __is_normal_bone_collection(bone_collection: bpy.types.BoneCollection) -> bool:
+        return bone_collection.get(BONE_COLLECTION_CUSTOM_PROPERTY_NAME) == BONE_COLLECTION_CUSTOM_PROPERTY_VALUE_NORMAL
 
     @staticmethod
-    def __set_bone_collection_to_normal(bone_collection: BoneCollection) -> None:
-        """Mark a bone collection as normal"""
+    def __set_bone_collection_to_normal(bone_collection: bpy.types.BoneCollection):
         bone_collection[BONE_COLLECTION_CUSTOM_PROPERTY_NAME] = BONE_COLLECTION_CUSTOM_PROPERTY_VALUE_NORMAL
 
     @staticmethod
-    def __set_edit_bone_to_special(edit_bone: EditBone, bone_collection_name: str) -> EditBone:
-        """Set an edit bone to a special collection"""
+    def __set_edit_bone_to_special(edit_bone: bpy.types.EditBone, bone_collection_name: str) -> bpy.types.EditBone:
         edit_bone.id_data.collections[bone_collection_name].assign(edit_bone)
         edit_bone.use_deform = False
         return edit_bone
 
     @staticmethod
-    def set_edit_bone_to_dummy(edit_bone: EditBone) -> EditBone:
-        """Set an edit bone as a dummy bone"""
-        logger.debug(f"Setting bone {edit_bone.name} as dummy bone")
+    def set_edit_bone_to_dummy(edit_bone: bpy.types.EditBone) -> bpy.types.EditBone:
         return FnBone.__set_edit_bone_to_special(edit_bone, BONE_COLLECTION_NAME_DUMMY)
 
     @staticmethod
-    def set_edit_bone_to_shadow(edit_bone: EditBone) -> EditBone:
-        """Set an edit bone as a shadow bone"""
-        logger.debug(f"Setting bone {edit_bone.name} as shadow bone")
+    def set_edit_bone_to_shadow(edit_bone: bpy.types.EditBone) -> bpy.types.EditBone:
         return FnBone.__set_edit_bone_to_special(edit_bone, BONE_COLLECTION_NAME_SHADOW)
 
     @staticmethod
-    def __unassign_mmd_tools_bone_collections(edit_bone: EditBone) -> EditBone:
-        """Unassign an edit bone from all MMD Tools collections"""
+    def __unassign_mmd_tools_local_bone_collections(edit_bone: bpy.types.EditBone) -> bpy.types.EditBone:
         for bone_collection in edit_bone.collections:
-            if not FnBone.__is_mmd_tools_bone_collection(bone_collection):
+            if not FnBone.__is_mmd_tools_local_bone_collection(bone_collection):
                 continue
             bone_collection.unassign(edit_bone)
         return edit_bone
 
     @staticmethod
-    def sync_bone_collections_from_display_item_frames(armature_object: Object) -> None:
-        """Synchronize bone collections from display item frames"""
-        logger.info(f"Syncing bone collections from display item frames for {armature_object.name}")
-        armature = cast(Armature, armature_object.data)
+    def sync_bone_collections_from_display_item_frames(armature_object: bpy.types.Object):
+        armature: bpy.types.Armature = armature_object.data
         bone_collections = armature.collections
 
         from .model import FnModel
 
-        root_object = FnModel.find_root_object(armature_object)
-        if not root_object:
-            logger.error(f"No root object found for armature {armature_object.name}")
-            return
-            
-        mmd_root = root_object.mmd_root
+        root_object: bpy.types.Object = FnModel.find_root_object(armature_object)
+        mmd_root: MMDRoot = root_object.mmd_root
 
         bones = armature.bones
-        used_groups: Set[str] = set()
-        unassigned_bone_names: Set[str] = {b.name for b in bones}
+        used_groups = set()
+        unassigned_bone_names = {b.name for b in bones}
 
         for frame in mmd_root.display_item_frames:
             for item in frame.data:
@@ -204,12 +170,11 @@ class FnBone:
                     if bone_collection is None:
                         bone_collection = bone_collections.new(name=group_name)
                         FnBone.__set_bone_collection_to_normal(bone_collection)
-                        logger.debug(f"Created new bone collection: {group_name}")
                     bone_collection.assign(bones[item.name])
 
         for name in unassigned_bone_names:
             for bc in bones[name].collections:
-                if not FnBone.__is_mmd_tools_bone_collection(bc):
+                if not FnBone.__is_mmd_tools_local_bone_collection(bc):
                     continue
                 if not FnBone.__is_normal_bone_collection(bc):
                     continue
@@ -219,48 +184,40 @@ class FnBone:
         for bone_collection in bone_collections.values():
             if bone_collection.name in used_groups:
                 continue
-            if not FnBone.__is_mmd_tools_bone_collection(bone_collection):
+            if not FnBone.__is_mmd_tools_local_bone_collection(bone_collection):
                 continue
             if not FnBone.__is_normal_bone_collection(bone_collection):
                 continue
-            logger.debug(f"Removing unused bone collection: {bone_collection.name}")
             bone_collections.remove(bone_collection)
 
     @staticmethod
-    def sync_display_item_frames_from_bone_collections(armature_object: Object) -> None:
-        """Synchronize display item frames from bone collections"""
-        logger.info(f"Syncing display item frames from bone collections for {armature_object.name}")
-        armature = cast(Armature, armature_object.data)
-        bone_collections = armature.collections
+    def sync_display_item_frames_from_bone_collections(armature_object: bpy.types.Object):
+        armature: bpy.types.Armature = armature_object.data
+        bone_collections: bpy.types.BoneCollections = armature.collections
 
         from .model import FnModel
 
-        root_object = FnModel.find_root_object(armature_object)
-        if not root_object:
-            logger.error(f"No root object found for armature {armature_object.name}")
-            return
-            
-        mmd_root = root_object.mmd_root
+        root_object: bpy.types.Object = FnModel.find_root_object(armature_object)
+        mmd_root: MMDRoot = root_object.mmd_root
         display_item_frames = mmd_root.display_item_frames
 
         used_frame_index: Set[int] = set()
 
-        bone_collection: BoneCollection
+        bone_collection: bpy.types.BoneCollection
         for bone_collection in bone_collections:
             if len(bone_collection.bones) == 0 or FnBone.__is_special_bone_collection(bone_collection):
                 continue
 
             bone_collection_name = bone_collection.name
-            display_item_frame = display_item_frames.get(bone_collection_name)
+            display_item_frame: Optional[MMDDisplayItemFrame] = display_item_frames.get(bone_collection_name)
             if display_item_frame is None:
                 display_item_frame = display_item_frames.add()
                 display_item_frame.name = bone_collection_name
                 display_item_frame.name_e = bone_collection_name
-                logger.debug(f"Created new display item frame: {bone_collection_name}")
             used_frame_index.add(display_item_frames.find(bone_collection_name))
 
             ItemOp.resize(display_item_frame.data, len(bone_collection.bones))
-            for display_item, bone in zip(display_item_frame.data, bone_collection.bones):
+            for display_item, bone in zip(display_item_frame.data, bone_collection.bones, strict=False):
                 display_item.type = "BONE"
                 display_item.name = bone.name
 
@@ -271,27 +228,23 @@ class FnBone:
             if display_item_frame.is_special:
                 if display_item_frame.name != "表情":
                     display_item_frame.data.clear()
-                    logger.debug(f"Cleared special display item frame: {display_item_frame.name}")
             else:
-                logger.debug(f"Removing unused display item frame: {display_item_frames[i].name}")
                 display_item_frames.remove(i)
         mmd_root.active_display_item_frame = 0
 
     @staticmethod
-    def apply_bone_fixed_axis(armature_object: Object) -> None:
-        """Apply fixed axis to bones"""
-        logger.info(f"Applying bone fixed axis for {armature_object.name}")
-        bone_map: Dict[str, Tuple[Vector, bool, bool]] = {}
+    def apply_bone_fixed_axis(armature_object: bpy.types.Object):
+        bone_map = {}
         for b in armature_object.pose.bones:
             if b.is_mmd_shadow_bone or not b.mmd_bone.enabled_fixed_axis:
                 continue
-            mmd_bone = b.mmd_bone
+            mmd_bone: MMDBone = b.mmd_bone
             parent_tip = b.parent and not b.parent.is_mmd_shadow_bone and b.parent.mmd_bone.is_tip
             bone_map[b.name] = (mmd_bone.fixed_axis.normalized(), mmd_bone.is_tip, parent_tip)
 
         force_align = True
         with bpyutils.edit_object(armature_object) as data:
-            bone: EditBone
+            bone: bpy.types.EditBone
             for bone in data.edit_bones:
                 if bone.name not in bone_map:
                     bone.select = False
@@ -322,7 +275,6 @@ class FnBone:
                 else:
                     bone_map[bone.name] = (True, True, True)
                 bone.select = True
-                logger.debug(f"Applied fixed axis to bone: {bone.name}")
 
         for bone_name, locks in bone_map.items():
             b = armature_object.pose.bones[bone_name]
@@ -330,11 +282,9 @@ class FnBone:
             b.lock_ik_x, b.lock_ik_y, b.lock_ik_z = b.lock_rotation = locks
 
     @staticmethod
-    def load_bone_local_axes(armature_object: Object, enable: bool = True) -> None:
-        """Load local axes for selected bones"""
-        logger.debug(f"Loading bone local axes (enable={enable}) for {armature_object.name}")
+    def load_bone_local_axes(armature_object: bpy.types.Object, enable=True):
         for b in FnBone.__get_selected_pose_bones(armature_object):
-            mmd_bone = b.mmd_bone
+            mmd_bone: MMDBone = b.mmd_bone
             mmd_bone.enabled_local_axes = enable
             if enable:
                 axes = b.bone.matrix_local.to_3x3().transposed()
@@ -342,18 +292,16 @@ class FnBone:
                 mmd_bone.local_axis_z = axes[2].xzy
 
     @staticmethod
-    def apply_bone_local_axes(armature_object: Object) -> None:
-        """Apply local axes to bones"""
-        logger.info(f"Applying bone local axes for {armature_object.name}")
-        bone_map: Dict[str, Tuple[Vector, Vector]] = {}
+    def apply_bone_local_axes(armature_object: bpy.types.Object):
+        bone_map = {}
         for b in armature_object.pose.bones:
             if b.is_mmd_shadow_bone or not b.mmd_bone.enabled_local_axes:
                 continue
-            mmd_bone = b.mmd_bone
+            mmd_bone: MMDBone = b.mmd_bone
             bone_map[b.name] = (mmd_bone.local_axis_x, mmd_bone.local_axis_z)
 
         with bpyutils.edit_object(armature_object) as data:
-            bone: EditBone
+            bone: bpy.types.EditBone
             for bone in data.edit_bones:
                 if bone.name not in bone_map:
                     bone.select = False
@@ -361,18 +309,15 @@ class FnBone:
                 local_axis_x, local_axis_z = bone_map[bone.name]
                 FnBone.update_bone_roll(bone, local_axis_x, local_axis_z)
                 bone.select = True
-                logger.debug(f"Applied local axes to bone: {bone.name}")
 
     @staticmethod
-    def update_bone_roll(edit_bone: EditBone, mmd_local_axis_x: Vector, mmd_local_axis_z: Vector) -> None:
-        """Update bone roll based on local axes"""
+    def update_bone_roll(edit_bone: bpy.types.EditBone, mmd_local_axis_x, mmd_local_axis_z):
         axes = FnBone.get_axes(mmd_local_axis_x, mmd_local_axis_z)
         idx, val = max([(i, edit_bone.vector.dot(v)) for i, v in enumerate(axes)], key=lambda x: abs(x[1]))
         edit_bone.align_roll(axes[(idx - 1) % 3 if val < 0 else (idx + 1) % 3])
 
     @staticmethod
-    def get_axes(mmd_local_axis_x: Vector, mmd_local_axis_z: Vector) -> Tuple[Vector, Vector, Vector]:
-        """Get axes from local axis vectors"""
+    def get_axes(mmd_local_axis_x, mmd_local_axis_z):
         x_axis = Vector(mmd_local_axis_x).normalized().xzy
         z_axis = Vector(mmd_local_axis_z).normalized().xzy
         y_axis = z_axis.cross(x_axis).normalized()
@@ -380,25 +325,18 @@ class FnBone:
         return (x_axis, y_axis, z_axis)
 
     @staticmethod
-    def apply_auto_bone_roll(armature: Object) -> None:
-        """Apply automatic bone roll to appropriate bones"""
-        logger.info(f"Applying auto bone roll for {armature.name}")
-        bone_names: List[str] = []
-        for b in armature.pose.bones:
-            if not b.is_mmd_shadow_bone and not b.mmd_bone.enabled_local_axes and FnBone.has_auto_local_axis(b.mmd_bone.name_j):
-                bone_names.append(b.name)
+    def apply_auto_bone_roll(armature):
+        bone_names = [b.name for b in armature.pose.bones if not b.is_mmd_shadow_bone and not b.mmd_bone.enabled_local_axes and FnBone.has_auto_local_axis(b.mmd_bone.name_j)]
         with bpyutils.edit_object(armature) as data:
-            bone: EditBone
+            bone: bpy.types.EditBone
             for bone in data.edit_bones:
                 if bone.name not in bone_names:
                     continue
                 FnBone.update_auto_bone_roll(bone)
                 bone.select = True
-                logger.debug(f"Applied auto bone roll to bone: {bone.name}")
 
     @staticmethod
-    def update_auto_bone_roll(edit_bone: EditBone) -> None:
-        """Update bone roll automatically"""
+    def update_auto_bone_roll(edit_bone):
         # make a triangle face (p1,p2,p3)
         p1 = edit_bone.head.copy()
         p2 = edit_bone.tail.copy()
@@ -419,8 +357,7 @@ class FnBone:
         FnBone.update_bone_roll(edit_bone, y.xzy, x.xzy)
 
     @staticmethod
-    def has_auto_local_axis(name_j: str) -> bool:
-        """Check if a bone should have automatic local axis"""
+    def has_auto_local_axis(name_j):
         if name_j:
             if name_j in FnBone.AUTO_LOCAL_AXIS_ARMS or name_j in FnBone.AUTO_LOCAL_AXIS_SEMI_STANDARD_ARMS:
                 return True
@@ -430,11 +367,12 @@ class FnBone:
         return False
 
     @staticmethod
-    def clean_additional_transformation(armature_object: Object) -> None:
-        """Clean additional transformation constraints and bones"""
-        logger.info(f"Cleaning additional transformations for {armature_object.name}")
+    def clean_additional_transformation(armature_object: bpy.types.Object):
+        if armature_object.type != "ARMATURE" or armature_object.pose is None:
+            return
+
         # clean constraints
-        p_bone: PoseBone
+        p_bone: bpy.types.PoseBone
         for p_bone in armature_object.pose.bones:
             p_bone.mmd_bone.is_additional_transform_dirty = True
             constraints = p_bone.constraints
@@ -450,21 +388,17 @@ class FnBone:
             "ADDITIONAL_TRANSFORM_INVERT",
         }
 
-        def __is_at_shadow_bone(b: PoseBone) -> bool:
+        def __is_at_shadow_bone(b):
             return b.is_mmd_shadow_bone and b.mmd_shadow_bone_type in shadow_bone_types
 
         shadow_bone_names = [b.name for b in armature_object.pose.bones if __is_at_shadow_bone(b)]
         if len(shadow_bone_names) > 0:
-            logger.debug(f"Removing {len(shadow_bone_names)} shadow bones")
             with bpyutils.edit_object(armature_object) as data:
                 remove_edit_bones(data.edit_bones, shadow_bone_names)
 
     @staticmethod
-    def apply_additional_transformation(armature_object: Object) -> None:
-        """Apply additional transformation to bones"""
-        logger.info(f"Applying additional transformations for {armature_object.name}")
-        
-        def __is_dirty_bone(b: PoseBone) -> bool:
+    def apply_additional_transformation(armature_object: bpy.types.Object):
+        def __is_dirty_bone(b):
             if b.is_mmd_shadow_bone:
                 return False
             mmd_bone = b.mmd_bone
@@ -473,10 +407,9 @@ class FnBone:
             return mmd_bone.is_additional_transform_dirty
 
         dirty_bones = [b for b in armature_object.pose.bones if __is_dirty_bone(b)]
-        logger.debug(f"Found {len(dirty_bones)} dirty bones to process")
 
         # setup constraints
-        shadow_bone_pool: List[Union[_AT_ShadowBoneRemove, _AT_ShadowBoneCreate]] = []
+        shadow_bone_pool = []
         for p_bone in dirty_bones:
             sb = FnBone.__setup_constraints(p_bone)
             if sb:
@@ -497,8 +430,7 @@ class FnBone:
             p_bone.mmd_bone.is_additional_transform_dirty = False
 
     @staticmethod
-    def __setup_constraints(p_bone: PoseBone) -> Optional[Union['_AT_ShadowBoneRemove', '_AT_ShadowBoneCreate']]:
-        """Set up constraints for additional transformation"""
+    def __setup_constraints(p_bone):
         bone_name = p_bone.name
         mmd_bone = p_bone.mmd_bone
         influence = mmd_bone.additional_transform_influence
@@ -511,18 +443,21 @@ class FnBone:
             rot = remove_constraint(constraints, "mmd_additional_rotation")
             loc = remove_constraint(constraints, "mmd_additional_location")
             if rot or loc:
-                logger.debug(f"Removing additional transform constraints for bone: {bone_name}")
                 return _AT_ShadowBoneRemove(bone_name)
             return None
 
-        logger.debug(f"Setting up additional transform for bone: {bone_name} targeting {target_bone}")
         shadow_bone = _AT_ShadowBoneCreate(bone_name, target_bone)
 
-        def __config(name: str, mute: bool, map_type: str, value: float) -> None:
+        def __config(name, mute, map_type, value):
             if mute:
                 remove_constraint(constraints, name)
                 return
             c = TransformConstraintOp.create(constraints, name, map_type)
+            # FIXME: Some bones require specific rotation modes to match MMD behavior.
+            # Currently using hardcoded bone names as a temporary solution.
+            # See https://github.com/MMD-Blender/blender_mmd_tools_local/issues/242
+            if bone_name in {"左肩C", "右肩C", "肩C.L", "肩C.R", "肩C_L", "肩C_R"}:
+                c.from_rotation_mode = "ZYX"  # Best matches MMD behavior for shoulder bones
             c.target = p_bone.id_data
             shadow_bone.add_constraint(c)
             TransformConstraintOp.update_min_max(c, value, influence)
@@ -533,81 +468,62 @@ class FnBone:
         return shadow_bone
 
     @staticmethod
-    def update_additional_transform_influence(pose_bone: PoseBone) -> None:
-        """Update the influence of additional transform constraints"""
+    def update_additional_transform_influence(pose_bone: bpy.types.PoseBone):
         influence = pose_bone.mmd_bone.additional_transform_influence
         constraints = pose_bone.constraints
         c = constraints.get("mmd_additional_rotation", None)
         TransformConstraintOp.update_min_max(c, math.pi, influence)
         c = constraints.get("mmd_additional_location", None)
         TransformConstraintOp.update_min_max(c, 100, influence)
-        logger.debug(f"Updated additional transform influence for bone: {pose_bone.name} to {influence}")
 
 
 class MigrationFnBone:
     """Migration Functions for old MMD models broken by bugs or issues"""
 
     @staticmethod
-    def fix_mmd_ik_limit_override(armature_object: Object) -> None:
-        """Fix IK limit override constraints in old MMD models"""
-        logger.info(f"Fixing MMD IK limit overrides for {armature_object.name}")
-        pose_bone: PoseBone
+    def fix_mmd_ik_limit_override(armature_object: bpy.types.Object):
+        pose_bone: bpy.types.PoseBone
         for pose_bone in armature_object.pose.bones:
-            constraint: Constraint
+            constraint: bpy.types.Constraint
             for constraint in pose_bone.constraints:
                 if constraint.type == "LIMIT_ROTATION" and "mmd_ik_limit_override" in constraint.name:
                     constraint.owner_space = "LOCAL"
-                    logger.debug(f"Fixed IK limit override for bone: {pose_bone.name}")
 
 
 class _AT_ShadowBoneRemove:
-    """Handler for removing shadow bones"""
-    
-    def __init__(self, bone_name: str) -> None:
-        """Initialize with bone name"""
+    def __init__(self, bone_name):
         self.__shadow_bone_names = ("_dummy_" + bone_name, "_shadow_" + bone_name)
 
-    def update_edit_bones(self, edit_bones: bpy.types.ArmatureEditBones) -> None:
-        """Update edit bones by removing shadow bones"""
+    def update_edit_bones(self, edit_bones):
         remove_edit_bones(edit_bones, self.__shadow_bone_names)
-        logger.debug(f"Removed shadow bones: {self.__shadow_bone_names}")
 
-    def update_pose_bones(self, pose_bones: Any) -> None:
-        """Update pose bones (no-op for removal)"""
+    def update_pose_bones(self, pose_bones):
         pass
 
 
 class _AT_ShadowBoneCreate:
-    """Handler for creating shadow bones"""
-    
-    def __init__(self, bone_name: str, target_bone_name: str) -> None:
-        """Initialize with bone names"""
+    def __init__(self, bone_name, target_bone_name):
         self.__dummy_bone_name = "_dummy_" + bone_name
         self.__shadow_bone_name = "_shadow_" + bone_name
         self.__bone_name = bone_name
         self.__target_bone_name = target_bone_name
-        self.__constraint_pool: List[Constraint] = []
+        self.__constraint_pool = []
 
-    def __is_well_aligned(self, bone0: EditBone, bone1: EditBone) -> bool:
-        """Check if two bones are well aligned"""
+    def __is_well_aligned(self, bone0, bone1):
         return bone0.x_axis.dot(bone1.x_axis) > 0.99 and bone0.y_axis.dot(bone1.y_axis) > 0.99
 
-    def __update_constraints(self, use_shadow: bool = True) -> None:
-        """Update constraints to use shadow or target bone"""
+    def __update_constraints(self, use_shadow=True):
         subtarget = self.__shadow_bone_name if use_shadow else self.__target_bone_name
         for c in self.__constraint_pool:
             c.subtarget = subtarget
 
-    def add_constraint(self, constraint: Constraint) -> None:
-        """Add a constraint to the pool"""
+    def add_constraint(self, constraint):
         self.__constraint_pool.append(constraint)
 
-    def update_edit_bones(self, edit_bones: bpy.types.ArmatureEditBones) -> None:
-        """Update edit bones by creating shadow bones"""
+    def update_edit_bones(self, edit_bones):
         bone = edit_bones[self.__bone_name]
         target_bone = edit_bones[self.__target_bone_name]
         if bone != target_bone and self.__is_well_aligned(bone, target_bone):
-            logger.debug(f"Bones are well aligned, removing shadow bones for {self.__bone_name}")
             _AT_ShadowBoneRemove(self.__bone_name).update_edit_bones(edit_bones)
             return
 
@@ -617,7 +533,6 @@ class _AT_ShadowBoneCreate:
         dummy.head = target_bone.head
         dummy.tail = dummy.head + bone.tail - bone.head
         dummy.roll = bone.roll
-        logger.debug(f"Created/updated dummy bone: {dummy_bone_name}")
 
         shadow_bone_name = self.__shadow_bone_name
         shadow = edit_bones.get(shadow_bone_name, None) or FnBone.set_edit_bone_to_shadow(edit_bones.new(name=shadow_bone_name))
@@ -625,12 +540,9 @@ class _AT_ShadowBoneCreate:
         shadow.head = dummy.head
         shadow.tail = dummy.tail
         shadow.roll = bone.roll
-        logger.debug(f"Created/updated shadow bone: {shadow_bone_name}")
 
-    def update_pose_bones(self, pose_bones: Any) -> None:
-        """Update pose bones by setting up shadow bone properties"""
+    def update_pose_bones(self, pose_bones):
         if self.__shadow_bone_name not in pose_bones:
-            logger.debug(f"Shadow bone {self.__shadow_bone_name} not found, using target bone directly")
             self.__update_constraints(use_shadow=False)
             return
 
@@ -649,7 +561,5 @@ class _AT_ShadowBoneCreate:
             c.subtarget = dummy_p_bone.name
             c.target_space = "POSE"
             c.owner_space = "POSE"
-            logger.debug(f"Created copy transforms constraint for shadow bone: {self.__shadow_bone_name}")
 
         self.__update_constraints()
-        logger.debug(f"Updated constraints for shadow bone: {self.__shadow_bone_name}")

core/mmd/core/camera.py

@@ -1,25 +1,18 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
 import math
-from typing import Optional, List, Tuple, Callable, Any, Union
+from typing import Optional
 
 import bpy
-from bpy.types import Object, ID, Camera, Context
-from mathutils import Vector, Matrix, Euler
-import traceback
+from mathutils import Matrix, Vector
 
 from ..bpyutils import FnContext, Props
-from ....core.logging_setup import logger
+
 
 class FnCamera:
     @staticmethod
-    def find_root(obj: Optional[Object]) -> Optional[Object]:
-        """Find the root object of an MMD camera setup."""
+    def find_root(obj: bpy.types.Object) -> Optional[bpy.types.Object]:
         if obj is None:
             return None
         if FnCamera.is_mmd_camera_root(obj):
@@ -29,22 +22,16 @@ class FnCamera:
         return None
 
     @staticmethod
-    def is_mmd_camera(obj: Object) -> bool:
-        """Check if an object is an MMD camera."""
+    def is_mmd_camera(obj: bpy.types.Object) -> bool:
         return obj.type == "CAMERA" and FnCamera.find_root(obj.parent) is not None
 
     @staticmethod
-    def is_mmd_camera_root(obj: Object) -> bool:
-        """Check if an object is an MMD camera root."""
+    def is_mmd_camera_root(obj: bpy.types.Object) -> bool:
         return obj.type == "EMPTY" and obj.mmd_type == "CAMERA"
 
     @staticmethod
-    def add_drivers(camera_object: Object) -> None:
-        """Add drivers to the camera object for MMD camera functionality."""
-        logger.debug(f"Adding drivers to camera: {camera_object.name}")
-        
-        def __add_driver(id_data: ID, data_path: str, expression: str, index: int = -1) -> None:
-            """Add a driver to the specified ID data."""
+    def add_drivers(camera_object: bpy.types.Object):
+        def __add_driver(id_data: bpy.types.ID, data_path: str, expression: str, index: int = -1):
             d = id_data.driver_add(data_path, index).driver
             d.type = "SCRIPTED"
             if "$empty_distance" in expression:
@@ -72,46 +59,31 @@ class FnCamera:
                 v.targets[0].data_path = "mmd_camera.angle"
                 expression = expression.replace("$angle", v.name)
             if "$sensor_height" in expression:
-                v = d.variables.new()
-                v.name = "sensor_height"
-                v.type = "SINGLE_PROP"
-                v.targets[0].id_type = "CAMERA"
-                v.targets[0].id = camera_object.data
-                v.targets[0].data_path = "sensor_height"
-                expression = expression.replace("$sensor_height", v.name)
+                # Use fixed sensor_height instead of dynamic reference.
+                # When controlled by MMD angle, sensor_height shouldn't change.
+                # This avoids unnecessary dependency cycles.
+                # Reference: https://github.com/MMD-Blender/blender_mmd_tools_local/issues/227
+                current_sensor_height = camera_object.data.sensor_height
+                expression = expression.replace("$sensor_height", str(current_sensor_height))
 
             d.expression = expression
 
-        try:
         __add_driver(camera_object.data, "ortho_scale", "25*abs($empty_distance)/45")
         __add_driver(camera_object, "rotation_euler", "pi if $is_perspective == False and $empty_distance > 1e-5 else 0", index=1)
         __add_driver(camera_object.data, "type", "not $is_perspective")
         __add_driver(camera_object.data, "lens", "$sensor_height/tan($angle/2)/2")
-            logger.debug(f"Successfully added drivers to camera: {camera_object.name}")
-        except Exception:
-            logger.error(f"Failed to add drivers to camera {camera_object.name}: {traceback.format_exc()}")
 
     @staticmethod
-    def remove_drivers(camera_object: Object) -> None:
-        """Remove drivers from the camera object."""
-        logger.debug(f"Removing drivers from camera: {camera_object.name}")
-        try:
+    def remove_drivers(camera_object: bpy.types.Object):
         camera_object.data.driver_remove("ortho_scale")
         camera_object.driver_remove("rotation_euler")
-            camera_object.data.driver_remove("ortho_scale")
+        camera_object.data.driver_remove("type")
         camera_object.data.driver_remove("lens")
-            logger.debug(f"Successfully removed drivers from camera: {camera_object.name}")
-        except Exception:
-            logger.error(f"Failed to remove drivers from camera {camera_object.name}: {traceback.format_exc()}")
 
 
 class MigrationFnCamera:
     @staticmethod
-    def update_mmd_camera() -> None:
-        """Update all MMD cameras in the scene."""
-        logger.info("Updating all MMD cameras in the scene")
-        updated_count = 0
-        
+    def update_mmd_camera():
         for camera_object in bpy.data.objects:
             if camera_object.type != "CAMERA":
                 continue
@@ -121,57 +93,39 @@ class MigrationFnCamera:
                 # It's not a MMD Camera
                 continue
 
-            try:
             FnCamera.remove_drivers(camera_object)
             FnCamera.add_drivers(camera_object)
-                updated_count += 1
-            except Exception:
-                logger.error(f"Failed to update MMD camera {camera_object.name}: {traceback.format_exc()}")
-                
-        logger.info(f"Updated {updated_count} MMD cameras")
 
 
 class MMDCamera:
-    def __init__(self, obj: Object):
-        """Initialize an MMD camera."""
+    def __init__(self, obj):
         root_object = FnCamera.find_root(obj)
         if root_object is None:
-            logger.error(f"Object {obj.name} is not an MMD camera")
-            raise ValueError(f"{obj.name} is not an MMD camera")
+            raise ValueError(f"{str(obj)} is not MMDCamera")
 
         self.__emptyObj = getattr(root_object, "original", obj)
-        logger.debug(f"Initialized MMD camera with root: {self.__emptyObj.name}")
 
     @staticmethod
-    def isMMDCamera(obj: Object) -> bool:
-        """Check if an object is an MMD camera."""
+    def isMMDCamera(obj: bpy.types.Object) -> bool:
         return FnCamera.find_root(obj) is not None
 
     @staticmethod
-    def addDrivers(cameraObj: Object) -> None:
-        """Add drivers to the camera object."""
+    def addDrivers(cameraObj: bpy.types.Object):
         FnCamera.add_drivers(cameraObj)
 
     @staticmethod
-    def removeDrivers(cameraObj: Object) -> None:
-        """Remove drivers from the camera object. """
+    def removeDrivers(cameraObj: bpy.types.Object):
         if cameraObj.type != "CAMERA":
             return
         FnCamera.remove_drivers(cameraObj)
 
     @staticmethod
-    def convertToMMDCamera(cameraObj: Object, scale: float = 1.0) -> 'MMDCamera':
-        """Convert a camera to an MMD camera."""
-        logger.info(f"Converting camera {cameraObj.name} to MMD camera with scale {scale}")
-        
+    def convertToMMDCamera(cameraObj: bpy.types.Object, scale=1.0):
         if FnCamera.is_mmd_camera(cameraObj):
-            logger.debug(f"Camera {cameraObj.name} is already an MMD camera")
             return MMDCamera(cameraObj)
 
-        try:
         empty = bpy.data.objects.new(name="MMD_Camera", object_data=None)
-            context = FnContext.ensure_context()
-            FnContext.link_object(context, empty)
+        FnContext.link_object(FnContext.ensure_context(), empty)
 
         cameraObj.parent = empty
         cameraObj.data.sensor_fit = "VERTICAL"
@@ -195,50 +149,34 @@ class MMDCamera:
         empty.mmd_type = "CAMERA"
         empty.mmd_camera.angle = math.radians(30)
         empty.mmd_camera.persp = True
-            
-            logger.info(f"Successfully converted {cameraObj.name} to MMD camera")
         return MMDCamera(empty)
-        except Exception:
-            logger.error(f"Failed to convert camera {cameraObj.name} to MMD camera: {traceback.format_exc()}")
-            raise
 
     @staticmethod
-    def newMMDCameraAnimation(
-        cameraObj: Optional[Object], 
-        cameraTarget: Optional[Object] = None, 
-        scale: float = 1.0, 
-        min_distance: float = 0.1
-    ) -> 'MMDCamera':
-        """Create a new MMD camera animation."""
-        logger.info(f"Creating new MMD camera animation with scale {scale}")
-        
-        try:
+    def newMMDCameraAnimation(cameraObj, cameraTarget=None, scale=1.0, min_distance=0.1):
         scene = bpy.context.scene
         mmd_cam = bpy.data.objects.new(name="Camera", object_data=bpy.data.cameras.new("Camera"))
         FnContext.link_object(FnContext.ensure_context(), mmd_cam)
         MMDCamera.convertToMMDCamera(mmd_cam, scale=scale)
         mmd_cam_root = mmd_cam.parent
 
-            _camera_override_func: Optional[Callable[[], Object]] = None
+        _camera_override_func = None
         if cameraObj is None:
             if scene.camera is None:
                 scene.camera = mmd_cam
-                    logger.debug("Set scene camera to new MMD camera")
                 return MMDCamera(mmd_cam_root)
-                _camera_override_func = lambda: scene.camera
+            def _camera_override_func():
+                return scene.camera
 
-            _target_override_func: Optional[Callable[[Object], Object]] = None
+        _target_override_func = None
         if cameraTarget is None:
-                _target_override_func = lambda camObj: camObj.data.dof.focus_object or camObj
+            def _target_override_func(camObj):
+                return camObj.data.dof.focus_object or camObj
 
         action_name = mmd_cam_root.name
         parent_action = bpy.data.actions.new(name=action_name)
         distance_action = bpy.data.actions.new(name=action_name + "_dis")
         FnCamera.remove_drivers(mmd_cam)
 
-            from math import atan
-            from mathutils import Matrix, Vector
-
         render = scene.render
         factor = (render.resolution_y * render.pixel_aspect_y) / (render.resolution_x * render.pixel_aspect_x)
         matrix_rotation = Matrix(([1, 0, 0, 0], [0, 0, 1, 0], [0, -1, 0, 0], [0, 0, 0, 1]))
@@ -247,19 +185,15 @@ class MMDCamera:
         frame_count = frame_end - frame_start
         frames = range(frame_start, frame_end)
 
-            fcurves = []
-            for i in range(3):
-                fcurves.append(parent_action.fcurves.new(data_path="location", index=i))  # x, y, z
-            for i in range(3):
-                fcurves.append(parent_action.fcurves.new(data_path="rotation_euler", index=i))  # rx, ry, rz
+        fcurves = [parent_action.fcurves.new(data_path="location", index=i) for i in range(3)]  # x, y, z
+        fcurves.extend(parent_action.fcurves.new(data_path="rotation_euler", index=i) for i in range(3))  # rx, ry, rz
         fcurves.append(parent_action.fcurves.new(data_path="mmd_camera.angle"))  # fov
         fcurves.append(parent_action.fcurves.new(data_path="mmd_camera.is_perspective"))  # persp
         fcurves.append(distance_action.fcurves.new(data_path="location", index=1))  # dis
         for c in fcurves:
             c.keyframe_points.add(frame_count)
 
-            logger.debug(f"Processing {frame_count} frames for camera animation")
-            for f, x, y, z, rx, ry, rz, fov, persp, dis in zip(frames, *(c.keyframe_points for c in fcurves)):
+        for f, x, y, z, rx, ry, rz, fov, persp, dis in zip(frames, *(c.keyframe_points for c in fcurves), strict=False):
             scene.frame_set(f)
             if _camera_override_func:
                 cameraObj = _camera_override_func()
@@ -292,7 +226,7 @@ class MMDCamera:
             x.co, y.co, z.co = ((f, i) for i in cam_target_loc)
             rx.co, ry.co, rz.co = ((f, i) for i in cam_rotation)
             dis.co = (f, cam_dis)
-                fov.co = (f, 2 * atan(tan_val))
+            fov.co = (f, 2 * math.atan(tan_val))
             persp.co = (f, cameraObj.data.type != "ORTHO")
             persp.interpolation = "CONSTANT"
             for kp in (x, y, z, rx, ry, rz, fov, dis):
@@ -302,22 +236,13 @@ class MMDCamera:
         mmd_cam_root.animation_data_create().action = parent_action
         mmd_cam.animation_data_create().action = distance_action
         scene.frame_set(frame_current)
-            
-            logger.info(f"Successfully created MMD camera animation with {frame_count} frames")
         return MMDCamera(mmd_cam_root)
 
-        except Exception:
-            logger.error(f"Failed to create MMD camera animation: {traceback.format_exc()}")
-            raise
-
-    def object(self) -> Object:
-        """Get the root object of the MMD camera."""
+    def object(self):
         return self.__emptyObj
 
-    def camera(self) -> Object:
-        """Get the camera object of the MMD camera."""
+    def camera(self):
         for i in self.__emptyObj.children:
             if i.type == "CAMERA":
                 return i
-        logger.error(f"No camera found for MMD camera root {self.__emptyObj.name}")
-        raise KeyError(f"No camera found for MMD camera root {self.__emptyObj.name}")
+        raise KeyError

core/mmd/core/exceptions.py

@@ -1,14 +1,12 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2016 MMD Tools authors
+# This file is part of MMD Tools.
+
+# Module for custom exceptions
 
 
 class MaterialNotFoundError(KeyError):
     """Exception raised when a material is not found in the scene"""
 
     def __init__(self, *args: object) -> None:
-        """Constructor for MaterialNotFoundError"""
+        """Initialize MaterialNotFoundError"""
         super().__init__(*args)

core/mmd/core/lamp.py

@@ -1,53 +1,37 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
 import bpy
-from typing import Optional, Union, Any, List, Tuple
-from bpy.types import Object, Context
 
 from ..bpyutils import FnContext, Props
-from ....core.logging_setup import logger
 
 
 class MMDLamp:
-    def __init__(self, obj: Object) -> None:
+    def __init__(self, obj):
         if MMDLamp.isLamp(obj):
             obj = obj.parent
         if obj and obj.type == "EMPTY" and obj.mmd_type == "LIGHT":
-            self.__emptyObj: Object = obj
+            self.__emptyObj = obj
         else:
-            error_msg = f"{str(obj)} is not MMDLamp"
-            logger.error(error_msg)
-            raise ValueError(error_msg)
+            raise ValueError(f"{str(obj)} is not MMDLamp")
 
     @staticmethod
-    def isLamp(obj: Optional[Object]) -> bool:
-        """Check if the object is a lamp/light object"""
-        return obj is not None and obj.type in {"LIGHT", "LAMP"}
+    def isLamp(obj):
+        return obj and obj.type in {"LIGHT", "LAMP"}
 
     @staticmethod
-    def isMMDLamp(obj: Optional[Object]) -> bool:
-        """Check if the object is an MMD lamp"""
+    def isMMDLamp(obj):
         if MMDLamp.isLamp(obj):
             obj = obj.parent
-        return obj is not None and obj.type == "EMPTY" and obj.mmd_type == "LIGHT"
+        return obj and obj.type == "EMPTY" and obj.mmd_type == "LIGHT"
 
     @staticmethod
-    def convertToMMDLamp(lampObj: Object, scale: float = 1.0) -> 'MMDLamp':
-        """Convert a regular lamp to an MMD lamp"""
+    def convertToMMDLamp(lampObj, scale=1.0):
         if MMDLamp.isMMDLamp(lampObj):
-            logger.debug(f"Object {lampObj.name} is already an MMD lamp")
             return MMDLamp(lampObj)
 
-        logger.info(f"Converting {lampObj.name} to MMD lamp with scale {scale}")
-        
-        empty: Object = bpy.data.objects.new(name="MMD_Light", object_data=None)
-        context = FnContext.ensure_context()
-        FnContext.link_object(context, empty)
+        empty = bpy.data.objects.new(name="MMD_Light", object_data=None)
+        FnContext.link_object(FnContext.ensure_context(), empty)
 
         empty.rotation_mode = "XYZ"
         empty.lock_rotation = (True, True, True)
@@ -69,18 +53,13 @@ class MMDLamp:
         constraint.track_axis = "TRACK_NEGATIVE_Z"
         constraint.up_axis = "UP_Y"
 
-        logger.debug(f"Successfully created MMD lamp from {lampObj.name}")
         return MMDLamp(empty)
 
-    def object(self) -> Object:
-        """Get the empty object that represents this MMD lamp"""
+    def object(self):
         return self.__emptyObj
 
-    def lamp(self) -> Object:
-        """Get the actual lamp/light object"""
+    def lamp(self):
         for i in self.__emptyObj.children:
             if MMDLamp.isLamp(i):
                 return i
-        error_msg = f"No lamp found in MMD lamp {self.__emptyObj.name}"
-        logger.error(error_msg)
-        raise KeyError(error_msg)
+        raise KeyError

core/mmd/core/material.py

@@ -1,13 +1,10 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
-import logging
+from ....core.logging_setup import logger
 import os
-from typing import TYPE_CHECKING, Callable, Iterable, Optional, Tuple, cast, Dict, List, Any, Union, Set
+from pathlib import Path
+from typing import TYPE_CHECKING, Callable, Iterable, Optional, Tuple, cast
 
 import bpy
 from mathutils import Vector
@@ -15,7 +12,6 @@ from mathutils import Vector
 from ..bpyutils import FnContext
 from .exceptions import MaterialNotFoundError
 from .shader import _NodeGroupUtils
-from ....core.logging_setup import logger
 
 if TYPE_CHECKING:
     from ..properties.material import MMDMaterial
@@ -28,55 +24,51 @@ SPHERE_MODE_SUBTEX = 3
 
 
 class _DummyTexture:
-    def __init__(self, image: bpy.types.Image):
-        self.type: str = "IMAGE"
-        self.image: bpy.types.Image = image
-        self.use_mipmap: bool = True
+    def __init__(self, image):
+        self.type = "IMAGE"
+        self.image = image
+        self.use_mipmap = True
 
 
 class _DummyTextureSlot:
-    def __init__(self, image: bpy.types.Image):
-        self.diffuse_color_factor: float = 1
-        self.uv_layer: str = ""
-        self.texture: _DummyTexture = _DummyTexture(image)
+    def __init__(self, image):
+        self.diffuse_color_factor = 1
+        self.uv_layer = ""
+        self.texture = _DummyTexture(image)
 
 
 class FnMaterial:
     __NODES_ARE_READONLY: bool = False
 
     def __init__(self, material: bpy.types.Material):
-        self.__material: bpy.types.Material = material
-        self._nodes_are_readonly: bool = FnMaterial.__NODES_ARE_READONLY
+        self.__material = material
+        self._nodes_are_readonly = FnMaterial.__NODES_ARE_READONLY
 
     @staticmethod
-    def set_nodes_are_readonly(nodes_are_readonly: bool) -> None:
+    def set_nodes_are_readonly(nodes_are_readonly: bool):
         FnMaterial.__NODES_ARE_READONLY = nodes_are_readonly
 
     @classmethod
-    def from_material_id(cls, material_id: str) -> Optional['FnMaterial']:
+    def from_material_id(cls, material_id: int):
         for material in bpy.data.materials:
             if material.mmd_material.material_id == material_id:
                 return cls(material)
         return None
 
     @staticmethod
-    def clean_materials(obj: bpy.types.Object, can_remove: Callable[[bpy.types.Material], bool]) -> None:
+    def clean_materials(obj, can_remove: Callable[[bpy.types.Material], bool]):
         materials = obj.data.materials
         materials_pop = materials.pop
-        removed_count = 0
         for i in sorted((x for x, m in enumerate(materials) if can_remove(m)), reverse=True):
             m = materials_pop(index=i)
-            removed_count += 1
             if m.users < 1:
                 bpy.data.materials.remove(m)
 
-        if removed_count > 0:
-            logger.debug(f"Removed {removed_count} materials from {obj.name}")
-
     @staticmethod
-    def swap_materials(mesh_object: bpy.types.Object, mat1_ref: Union[str, int], mat2_ref: Union[str, int], reverse: bool = False, swap_slots: bool = False) -> Tuple[bpy.types.Material, bpy.types.Material]:
+    def swap_materials(mesh_object: bpy.types.Object, mat1_ref: str | int, mat2_ref: str | int, reverse=False, swap_slots=False) -> Tuple[bpy.types.Material, bpy.types.Material]:
         """
-        This method will assign the polygons of mat1 to mat2.
+        Assign the polygons of mat1 to mat2.
+
         If reverse is True it will also swap the polygons assigned to mat2 to mat1.
         The reference to materials can be indexes or names
         Finally it will also swap the material slots if the option is given.
@@ -94,22 +86,18 @@ class FnMaterial:
         Raises:
             MaterialNotFoundError: If one of the materials is not found
         """
-        mesh = cast(bpy.types.Mesh, mesh_object.data)
+        mesh = cast("bpy.types.Mesh", mesh_object.data)
         try:
             # Try to find the materials
             mat1 = mesh.materials[mat1_ref]
             mat2 = mesh.materials[mat2_ref]
-            if None in (mat1, mat2):
-                raise MaterialNotFoundError()
+            if None in {mat1, mat2}:
+                raise MaterialNotFoundError
         except (KeyError, IndexError) as exc:
             # Wrap exceptions within our custom ones
-            raise MaterialNotFoundError() from exc
-        
+            raise MaterialNotFoundError from exc
         mat1_idx = mesh.materials.find(mat1.name)
         mat2_idx = mesh.materials.find(mat2.name)
-        
-        logger.debug(f"Swapping materials: {mat1.name} (idx:{mat1_idx}) <-> {mat2.name} (idx:{mat2_idx}) in {mesh_object.name}")
-        
         # Swap polygons
         for poly in mesh.polygons:
             if poly.material_index == mat1_idx:
@@ -123,37 +111,31 @@ class FnMaterial:
         return mat1, mat2
 
     @staticmethod
-    def fixMaterialOrder(meshObj: bpy.types.Object, material_names: Iterable[str]) -> None:
-        """
-        This method will fix the material order. Which is lost after joining meshes.
-        """
-        materials = cast(bpy.types.Mesh, meshObj.data).materials
-        logger.debug(f"Fixing material order for {meshObj.name}")
-        
+    def fixMaterialOrder(meshObj: bpy.types.Object, material_names: Iterable[str]):
+        """Fix the material order which is lost after joining meshes."""
+        materials = cast("bpy.types.Mesh", meshObj.data).materials
         for new_idx, mat in enumerate(material_names):
             # Get the material that is currently on this index
             other_mat = materials[new_idx]
             if other_mat.name == mat:
                 continue  # This is already in place
-            logger.debug(f"Moving material {mat} to index {new_idx}")
             FnMaterial.swap_materials(meshObj, mat, new_idx, reverse=True, swap_slots=True)
 
     @property
-    def material_id(self) -> int:
-        mmd_mat: 'MMDMaterial' = self.__material.mmd_material
+    def material_id(self):
+        mmd_mat: MMDMaterial = self.__material.mmd_material
         if mmd_mat.material_id < 0:
             max_id = -1
             for mat in bpy.data.materials:
                 max_id = max(max_id, mat.mmd_material.material_id)
             mmd_mat.material_id = max_id + 1
-            logger.debug(f"Assigned new material ID {mmd_mat.material_id} to {self.__material.name}")
         return mmd_mat.material_id
 
     @property
-    def material(self) -> bpy.types.Material:
+    def material(self):
         return self.__material
 
-    def __same_image_file(self, image: Optional[bpy.types.Image], filepath: str) -> bool:
+    def __same_image_file(self, image, filepath):
         if image and image.source == "FILE":
             # pylint: disable=assignment-from-no-return
             img_filepath = bpy.path.abspath(image.filepath)  # image.filepath_from_user()
@@ -162,19 +144,18 @@ class FnMaterial:
             # pylint: disable=bare-except
             try:
                 return os.path.samefile(img_filepath, filepath)
-            except:
-                pass
+            except Exception as e:
+                logger.warning(f"Failed to compare files '{img_filepath}' and '{filepath}': {e}")
         return False
 
-    def _load_image(self, filepath: str) -> bpy.types.Image:
+    def _load_image(self, filepath):
         img = next((i for i in bpy.data.images if self.__same_image_file(i, filepath)), None)
         if img is None:
             # pylint: disable=bare-except
             try:
-                logger.debug(f"Loading image: {filepath}")
                 img = bpy.data.images.load(filepath)
-            except:
-                logger.warning(f"Cannot create a texture for {filepath}. No such file.")
+            except Exception:
+                logger.warning("Cannot create a texture for %s. No such file.", filepath)
                 img = bpy.data.images.new(os.path.basename(filepath), 1, 1)
                 img.source = "FILE"
                 img.filepath = filepath
@@ -185,46 +166,43 @@ class FnMaterial:
                 img.alpha_mode = "NONE"
         return img
 
-    def update_toon_texture(self) -> None:
+    def update_toon_texture(self):
         if self._nodes_are_readonly:
             return
-        mmd_mat: 'MMDMaterial' = self.__material.mmd_material
+        mmd_mat: MMDMaterial = self.__material.mmd_material
         if mmd_mat.is_shared_toon_texture:
             shared_toon_folder = FnContext.get_addon_preferences_attribute(FnContext.ensure_context(), "shared_toon_folder", "")
             toon_path = os.path.join(shared_toon_folder, "toon%02d.bmp" % (mmd_mat.shared_toon_texture + 1))
-            logger.debug(f"Using shared toon texture: {toon_path}")
-            self.create_toon_texture(bpy.path.resolve_ncase(path=toon_path))
+            self.create_toon_texture(str(Path(toon_path).resolve()))
         elif mmd_mat.toon_texture != "":
-            logger.debug(f"Using custom toon texture: {mmd_mat.toon_texture}")
             self.create_toon_texture(mmd_mat.toon_texture)
         else:
-            logger.debug(f"Removing toon texture from {self.__material.name}")
             self.remove_toon_texture()
 
-    def _mix_diffuse_and_ambient(self, mmd_mat: 'MMDMaterial') -> List[float]:
+    def _mix_diffuse_and_ambient(self, mmd_mat):
         r, g, b = mmd_mat.diffuse_color
         ar, ag, ab = mmd_mat.ambient_color
         return [min(1.0, 0.5 * r + ar), min(1.0, 0.5 * g + ag), min(1.0, 0.5 * b + ab)]
 
-    def update_drop_shadow(self) -> None:
+    def update_drop_shadow(self):
         pass
 
-    def update_enabled_toon_edge(self) -> None:
+    def update_enabled_toon_edge(self):
         if self._nodes_are_readonly:
             return
         self.update_edge_color()
 
-    def update_edge_color(self) -> None:
+    def update_edge_color(self):
         if self._nodes_are_readonly:
             return
         mat = self.__material
-        mmd_mat: 'MMDMaterial' = mat.mmd_material
+        mmd_mat: MMDMaterial = mat.mmd_material
         color, alpha = mmd_mat.edge_color[:3], mmd_mat.edge_color[3]
         line_color = color + (min(alpha, int(mmd_mat.enabled_toon_edge)),)
         if hasattr(mat, "line_color"):  # freestyle line color
             mat.line_color = line_color
 
-        mat_edge: Optional[bpy.types.Material] = bpy.data.materials.get("mmd_edge." + mat.name, None)
+        mat_edge: bpy.types.Material = bpy.data.materials.get("mmd_edge." + mat.name, None)
         if mat_edge:
             mat_edge.mmd_material.edge_color = line_color
 
@@ -236,51 +214,44 @@ class FnMaterial:
             if node_shader and "Alpha" in node_shader.inputs:
                 node_shader.inputs["Alpha"].default_value = alpha
 
-        logger.debug(f"Updated edge color for {mat.name}")
-
-    def update_edge_weight(self) -> None:
+    def update_edge_weight(self):
         pass
 
-    def get_texture(self) -> Optional[_DummyTexture]:
+    def get_texture(self):
         return self.__get_texture_node("mmd_base_tex", use_dummy=True)
 
-    def create_texture(self, filepath: str) -> _DummyTextureSlot:
+    def create_texture(self, filepath):
         texture = self.__create_texture_node("mmd_base_tex", filepath, (-4, -1))
-        logger.debug(f"Created base texture for {self.__material.name}: {filepath}")
         return _DummyTextureSlot(texture.image)
 
-    def remove_texture(self) -> None:
+    def remove_texture(self):
         if self._nodes_are_readonly:
             return
-        logger.debug(f"Removing base texture from {self.__material.name}")
         self.__remove_texture_node("mmd_base_tex")
 
-    def get_sphere_texture(self) -> Optional[_DummyTexture]:
+    def get_sphere_texture(self):
         return self.__get_texture_node("mmd_sphere_tex", use_dummy=True)
 
-    def use_sphere_texture(self, use_sphere: bool, obj: Optional[bpy.types.Object] = None) -> None:
+    def use_sphere_texture(self, use_sphere, obj=None):
         if self._nodes_are_readonly:
             return
         if use_sphere:
-            logger.debug(f"Enabling sphere texture for {self.__material.name}")
             self.update_sphere_texture_type(obj)
         else:
-            logger.debug(f"Disabling sphere texture for {self.__material.name}")
             self.__update_shader_input("Sphere Tex Fac", 0)
 
-    def create_sphere_texture(self, filepath: str, obj: Optional[bpy.types.Object] = None) -> _DummyTextureSlot:
+    def create_sphere_texture(self, filepath, obj=None):
         texture = self.__create_texture_node("mmd_sphere_tex", filepath, (-2, -2))
-        logger.debug(f"Created sphere texture for {self.__material.name}: {filepath}")
         self.update_sphere_texture_type(obj)
         return _DummyTextureSlot(texture.image)
 
-    def update_sphere_texture_type(self, obj: Optional[bpy.types.Object] = None) -> None:
+    def update_sphere_texture_type(self, obj=None):
         if self._nodes_are_readonly:
             return
         sphere_texture_type = int(self.material.mmd_material.sphere_texture_type)
         is_sph_add = sphere_texture_type == 2
 
-        if sphere_texture_type not in (1, 2, 3):
+        if sphere_texture_type not in {1, 2, 3}:
             self.__update_shader_input("Sphere Tex Fac", 0)
         else:
             self.__update_shader_input("Sphere Tex Fac", 1)
@@ -298,62 +269,54 @@ class FnMaterial:
                 nodes, links = mat.node_tree.nodes, mat.node_tree.links
                 if sphere_texture_type == 3:
                     if obj and obj.type == "MESH" and mat in tuple(obj.data.materials):
-                        uv_layers = (l for l in obj.data.uv_layers if not l.name.startswith("_"))
+                        uv_layers = (layer for layer in obj.data.uv_layers if not layer.name.startswith("_"))
                         next(uv_layers, None)  # skip base UV
                         subtex_uv = getattr(next(uv_layers, None), "name", "")
                         if subtex_uv != "UV1":
-                            logger.info(f'Material({mat.name}): object "{obj.name}" use UV "{subtex_uv}" for SubTex')
+                            logger.info(' * material(%s): object "%s" use UV "%s" for SubTex', mat.name, obj.name, subtex_uv)
                     links.new(nodes["mmd_tex_uv"].outputs["SubTex UV"], texture.inputs["Vector"])
                 else:
                     links.new(nodes["mmd_tex_uv"].outputs["Sphere UV"], texture.inputs["Vector"])
 
-        logger.debug(f"Updated sphere texture type for {self.material.name}: {sphere_texture_type}")
-
-    def remove_sphere_texture(self) -> None:
+    def remove_sphere_texture(self):
         if self._nodes_are_readonly:
             return
-        logger.debug(f"Removing sphere texture from {self.__material.name}")
         self.__remove_texture_node("mmd_sphere_tex")
 
-    def get_toon_texture(self) -> Optional[_DummyTexture]:
+    def get_toon_texture(self):
         return self.__get_texture_node("mmd_toon_tex", use_dummy=True)
 
-    def use_toon_texture(self, use_toon: bool) -> None:
+    def use_toon_texture(self, use_toon):
         if self._nodes_are_readonly:
             return
-        logger.debug(f"{'Enabling' if use_toon else 'Disabling'} toon texture for {self.__material.name}")
         self.__update_shader_input("Toon Tex Fac", use_toon)
 
-    def create_toon_texture(self, filepath: str) -> _DummyTextureSlot:
+    def create_toon_texture(self, filepath):
         texture = self.__create_texture_node("mmd_toon_tex", filepath, (-3, -1.5))
-        logger.debug(f"Created toon texture for {self.__material.name}: {filepath}")
         return _DummyTextureSlot(texture.image)
 
-    def remove_toon_texture(self) -> None:
+    def remove_toon_texture(self):
         if self._nodes_are_readonly:
             return
-        logger.debug(f"Removing toon texture from {self.__material.name}")
         self.__remove_texture_node("mmd_toon_tex")
 
-    def __get_texture_node(self, node_name: str, use_dummy: bool = False) -> Optional[Union[bpy.types.ShaderNodeTexImage, _DummyTexture]]:
+    def __get_texture_node(self, node_name, use_dummy=False):
         mat = self.material
         texture = getattr(mat.node_tree, "nodes", {}).get(node_name, None)
         if isinstance(texture, bpy.types.ShaderNodeTexImage):
             return _DummyTexture(texture.image) if use_dummy else texture
         return None
 
-    def __remove_texture_node(self, node_name: str) -> None:
+    def __remove_texture_node(self, node_name):
         mat = self.material
         texture = getattr(mat.node_tree, "nodes", {}).get(node_name, None)
         if isinstance(texture, bpy.types.ShaderNodeTexImage):
             mat.node_tree.nodes.remove(texture)
             mat.update_tag()
 
-    def __create_texture_node(self, node_name: str, filepath: str, pos: Tuple[float, float]) -> bpy.types.ShaderNodeTexImage:
+    def __create_texture_node(self, node_name, filepath, pos):
         texture = self.__get_texture_node(node_name)
         if texture is None:
-            from mathutils import Vector
-
             self.__update_shader_nodes()
             nodes = self.material.node_tree.nodes
             texture = nodes.new("ShaderNodeTexImage")
@@ -365,25 +328,23 @@ class FnMaterial:
         self.__update_shader_nodes()
         return texture
 
-    def update_ambient_color(self) -> None:
+    def update_ambient_color(self):
         if self._nodes_are_readonly:
             return
         mat = self.material
         mmd_mat = mat.mmd_material
         mat.diffuse_color[:3] = self._mix_diffuse_and_ambient(mmd_mat)
         self.__update_shader_input("Ambient Color", mmd_mat.ambient_color[:] + (1,))
-        logger.debug(f"Updated ambient color for {mat.name}")
 
-    def update_diffuse_color(self) -> None:
+    def update_diffuse_color(self):
         if self._nodes_are_readonly:
             return
         mat = self.material
         mmd_mat = mat.mmd_material
         mat.diffuse_color[:3] = self._mix_diffuse_and_ambient(mmd_mat)
         self.__update_shader_input("Diffuse Color", mmd_mat.diffuse_color[:] + (1,))
-        logger.debug(f"Updated diffuse color for {mat.name}")
 
-    def update_alpha(self) -> None:
+    def update_alpha(self):
         if self._nodes_are_readonly:
             return
         mat = self.material
@@ -401,31 +362,28 @@ class FnMaterial:
             mat.diffuse_color[3] = mmd_mat.alpha
         self.__update_shader_input("Alpha", mmd_mat.alpha)
         self.update_self_shadow_map()
-        logger.debug(f"Updated alpha for {mat.name}: {mmd_mat.alpha}")
 
-    def update_specular_color(self) -> None:
+    def update_specular_color(self):
         if self._nodes_are_readonly:
             return
         mat = self.material
         mmd_mat = mat.mmd_material
         mat.specular_color = mmd_mat.specular_color
         self.__update_shader_input("Specular Color", mmd_mat.specular_color[:] + (1,))
-        logger.debug(f"Updated specular color for {mat.name}")
 
-    def update_shininess(self) -> None:
+    def update_shininess(self):
         if self._nodes_are_readonly:
             return
         mat = self.material
         mmd_mat = mat.mmd_material
         mat.roughness = 1 / pow(max(mmd_mat.shininess, 1), 0.37)
         if hasattr(mat, "metallic"):
-            mat.metallic = pow(1 - mat.roughness, 2.7)
+            mat.metallic = 0.0
         if hasattr(mat, "specular_hardness"):
             mat.specular_hardness = mmd_mat.shininess
         self.__update_shader_input("Reflect", mmd_mat.shininess)
-        logger.debug(f"Updated shininess for {mat.name}: {mmd_mat.shininess}")
 
-    def update_is_double_sided(self) -> None:
+    def update_is_double_sided(self):
         if self._nodes_are_readonly:
             return
         mat = self.material
@@ -435,9 +393,8 @@ class FnMaterial:
         elif hasattr(mat, "use_backface_culling"):
             mat.use_backface_culling = not mmd_mat.is_double_sided
         self.__update_shader_input("Double Sided", mmd_mat.is_double_sided)
-        logger.debug(f"Updated double-sided setting for {mat.name}: {mmd_mat.is_double_sided}")
 
-    def update_self_shadow_map(self) -> None:
+    def update_self_shadow_map(self):
         if self._nodes_are_readonly:
             return
         mat = self.material
@@ -445,24 +402,21 @@ class FnMaterial:
         cast_shadows = mmd_mat.enabled_self_shadow_map if mmd_mat.alpha > 1e-3 else False
         if hasattr(mat, "shadow_method"):
             mat.shadow_method = "HASHED" if cast_shadows else "NONE"
-        logger.debug(f"Updated self shadow map for {mat.name}: {cast_shadows}")
 
-    def update_self_shadow(self) -> None:
+    def update_self_shadow(self):
         if self._nodes_are_readonly:
             return
         mat = self.material
         mmd_mat = mat.mmd_material
         self.__update_shader_input("Self Shadow", mmd_mat.enabled_self_shadow)
-        logger.debug(f"Updated self shadow for {mat.name}: {mmd_mat.enabled_self_shadow}")
 
     @staticmethod
-    def convert_to_mmd_material(material: bpy.types.Material, context: bpy.types.Context = bpy.context) -> None:
+    def convert_to_mmd_material(material, context=bpy.context):
         m, mmd_material = material, material.mmd_material
-        logger.debug(f"Converting material to MMD material: {material.name}")
 
         if m.use_nodes and next((n for n in m.node_tree.nodes if n.name.startswith("mmd_")), None) is None:
 
-            def search_tex_image_node(node: bpy.types.ShaderNode) -> Optional[bpy.types.ShaderNodeTexImage]:
+            def search_tex_image_node(node: bpy.types.ShaderNode):
                 if node.type == "TEX_IMAGE":
                     return node
                 for node_input in node.inputs:
@@ -481,7 +435,8 @@ class FnMaterial:
 
             preferred_output_node_target = {
                 "CYCLES": "CYCLES",
-                "BLENDER_EEVEE_NEXT": "EEVEE",
+                "BLENDER_EEVEE": "EEVEE",
+                "BLENDER_EEVEE_NEXT": "EEVEE",  # Keep for backwards compatibility with 4.x
             }.get(active_render_engine, "ALL")
 
             tex_node = None
@@ -499,15 +454,13 @@ class FnMaterial:
             if tex_node is None:
                 tex_node = next((n for n in m.node_tree.nodes if n.bl_idname == "ShaderNodeTexImage"), None)
             if tex_node:
-                logger.debug(f"Found texture node for {material.name}: {tex_node.name}")
                 tex_node.name = "mmd_base_tex"
             else:
                 # Take the Base Color from BSDF if there's no texture
-                bsdf_node = next((n for n in m.node_tree.nodes if n.type.startswith('BSDF_')), None)
+                bsdf_node = next((n for n in m.node_tree.nodes if n.type.startswith("BSDF_")), None)
                 if bsdf_node:
-                    base_color_input = bsdf_node.inputs.get('Base Color') or bsdf_node.inputs.get('Color')
+                    base_color_input = bsdf_node.inputs.get("Base Color") or bsdf_node.inputs.get("Color")
                     if base_color_input:
-                        logger.debug(f"Using BSDF base color for {material.name}")
                         mmd_material.diffuse_color = base_color_input.default_value[:3]
                         # ambient should be half the diffuse
                         mmd_material.ambient_color = [x * 0.5 for x in mmd_material.diffuse_color]
@@ -538,12 +491,11 @@ class FnMaterial:
 
         # delete bsdf node if it's there
         if m.use_nodes:
-            nodes_to_remove = [n for n in m.node_tree.nodes if n.type == 'BSDF_PRINCIPLED' or n.type.startswith('BSDF_')]
+            nodes_to_remove = [n for n in m.node_tree.nodes if n.type == "BSDF_PRINCIPLED" or n.type.startswith("BSDF_")]
             for n in nodes_to_remove:
-                logger.debug(f"Removing BSDF node from {material.name}: {n.name}")
                 m.node_tree.nodes.remove(n)
 
-    def __update_shader_input(self, name: str, val: Any) -> None:
+    def __update_shader_input(self, name, val):
         mat = self.material
         if mat.name.startswith("mmd_"):  # skip mmd_edge.*
             return
@@ -555,29 +507,26 @@ class FnMaterial:
                 val = min(max(val, interface_socket.min_value), interface_socket.max_value)
             shader.inputs[name].default_value = val
 
-    def __update_shader_nodes(self) -> None:
+    def __update_shader_nodes(self):
         mat = self.material
         if mat.node_tree is None:
-            logger.debug(f"Creating node tree for {mat.name}")
             mat.use_nodes = True
             mat.node_tree.nodes.clear()
 
         nodes, links = mat.node_tree.nodes, mat.node_tree.links
 
         class _Dummy:
-            default_value: Any = None
-            is_linked: bool = True
+            default_value, is_linked = None, True
 
         node_shader = nodes.get("mmd_shader", None)
         if node_shader is None:
-            logger.debug(f"Creating MMD shader node for {mat.name}")
             node_shader: bpy.types.ShaderNodeGroup = nodes.new("ShaderNodeGroup")
             node_shader.name = "mmd_shader"
-            node_shader.location = (0, 1500)
+            node_shader.location = (0, 300)
             node_shader.width = 200
             node_shader.node_tree = self.__get_shader()
 
-            mmd_mat: 'MMDMaterial' = mat.mmd_material
+            mmd_mat: MMDMaterial = mat.mmd_material
             node_shader.inputs.get("Ambient Color", _Dummy).default_value = mmd_mat.ambient_color[:] + (1,)
             node_shader.inputs.get("Diffuse Color", _Dummy).default_value = mmd_mat.diffuse_color[:] + (1,)
             node_shader.inputs.get("Specular Color", _Dummy).default_value = mmd_mat.specular_color[:] + (1,)
@@ -589,7 +538,6 @@ class FnMaterial:
 
         node_uv = nodes.get("mmd_tex_uv", None)
         if node_uv is None:
-            logger.debug(f"Creating MMD UV node for {mat.name}")
             node_uv: bpy.types.ShaderNodeGroup = nodes.new("ShaderNodeGroup")
             node_uv.name = "mmd_tex_uv"
             node_uv.location = node_shader.location + Vector((-5 * 210, -2.5 * 220))
@@ -604,7 +552,7 @@ class FnMaterial:
             links.new(node_shader.outputs["Shader"], node_output.inputs["Surface"])
 
         for name_id in ("Base", "Toon", "Sphere"):
-            texture = self.__get_texture_node("mmd_%s_tex" % name_id.lower())
+            texture = self.__get_texture_node(f"mmd_{name_id.lower()}_tex")
             if texture:
                 name_tex_in, name_alpha_in, name_uv_out = (name_id + x for x in (" Tex", " Alpha", " UV"))
                 if not node_shader.inputs.get(name_tex_in, _Dummy).is_linked:
@@ -614,13 +562,12 @@ class FnMaterial:
                 if not texture.inputs["Vector"].is_linked:
                     links.new(node_uv.outputs[name_uv_out], texture.inputs["Vector"])
 
-    def __get_shader_uv(self) -> bpy.types.ShaderNodeTree:
+    def __get_shader_uv(self):
         group_name = "MMDTexUV"
         shader: bpy.types.ShaderNodeTree = bpy.data.node_groups.get(group_name, None) or bpy.data.node_groups.new(name=group_name, type="ShaderNodeTree")
         if len(shader.nodes):
             return shader
 
-        logger.debug(f"Creating MMD UV shader node group")
         ng = _NodeGroupUtils(shader)
 
         ############################################################################
@@ -652,13 +599,12 @@ class FnMaterial:
 
         return shader
 
-    def __get_shader(self) -> bpy.types.ShaderNodeTree:
+    def __get_shader(self):
         group_name = "MMDShaderDev"
         shader: bpy.types.ShaderNodeTree = bpy.data.node_groups.get(group_name, None) or bpy.data.node_groups.new(name=group_name, type="ShaderNodeTree")
         if len(shader.nodes):
             return shader
 
-        logger.debug(f"Creating MMD shader node group")
         ng = _NodeGroupUtils(shader)
 
         ############################################################################
@@ -748,18 +694,15 @@ class FnMaterial:
 
 class MigrationFnMaterial:
     @staticmethod
-    def update_mmd_shader() -> None:
+    def update_mmd_shader():
         mmd_shader_node_tree: Optional[bpy.types.NodeTree] = bpy.data.node_groups.get("MMDShaderDev")
         if mmd_shader_node_tree is None:
-            logger.debug("No MMD shader node tree found, skipping update")
             return
 
         ng = _NodeGroupUtils(mmd_shader_node_tree)
         if "Color" in ng.node_output.inputs:
-            logger.debug("MMD shader already has Color output, skipping update")
             return
 
-        logger.info("Updating MMD shader node tree")
         shader_diffuse: bpy.types.ShaderNodeBsdfDiffuse = [n for n in mmd_shader_node_tree.nodes if n.type == "BSDF_DIFFUSE"][0]
         node_sphere: bpy.types.ShaderNodeMixRGB = shader_diffuse.inputs["Color"].links[0].from_node
         node_output: bpy.types.NodeGroupOutput = ng.node_output
@@ -768,11 +711,3 @@ class MigrationFnMaterial:
 
         ng.new_output_socket("Color", node_sphere.outputs["Color"])
         ng.new_output_socket("Alpha", node_alpha.outputs["Value"])
-        logger.info("MMD shader node tree updated successfully")
-        
-        # Add Self Shadow input if it doesn't exist
-        if "Self Shadow" not in ng.node_input.outputs:
-            logger.info("Adding Self Shadow input to MMD shader")
-            # Find shader_base_mix node to connect Self Shadow
-            shader_base_mix = shader_alpha_mix.inputs[2].links[0].from_node
-            ng.new_input_socket("Self Shadow", shader_base_mix.inputs["Fac"], 0, min_max=(0, 1))

core/mmd/core/morph.py

@@ -1,39 +1,34 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2016 MMD Tools authors
+# This file is part of MMD Tools.
 
+from ....core.logging_setup import logger
+import math
 import re
-from typing import TYPE_CHECKING, Tuple, cast, List, Dict, Optional, Set, Any, Union, Iterator
+from typing import TYPE_CHECKING, Tuple, cast
 
 import bpy
-import numpy as np
-from bpy.types import Object, ShapeKey, Material, Mesh, Armature, PoseBone, Constraint
 
 from .. import bpyutils, utils
 from ..bpyutils import FnContext, FnObject, TransformConstraintOp
-from ....core.logging_setup import logger
 
 if TYPE_CHECKING:
     from .model import Model
 
 
 class FnMorph:
-    def __init__(self, morph: Any, model: "Model"):
+    def __init__(self, morph, model: "Model"):
         self.__morph = morph
         self.__rig = model
 
     @classmethod
-    def storeShapeKeyOrder(cls, obj: Object, shape_key_names: List[str]) -> None:
+    def storeShapeKeyOrder(cls, obj, shape_key_names):
         if len(shape_key_names) < 1:
             return
         assert FnContext.get_active_object(FnContext.ensure_context()) == obj
         if obj.data.shape_keys is None:
             bpy.ops.object.shape_key_add()
 
-        def __move_to_bottom(key_blocks: bpy.types.bpy_prop_collection, name: str) -> None:
+        def __move_to_bottom(key_blocks, name):
             obj.active_shape_key_index = key_blocks.find(name)
             bpy.ops.object.shape_key_move(type="BOTTOM")
 
@@ -45,7 +40,7 @@ class FnMorph:
                 __move_to_bottom(key_blocks, name)
 
     @classmethod
-    def fixShapeKeyOrder(cls, obj: Object, shape_key_names: List[str]) -> None:
+    def fixShapeKeyOrder(cls, obj, shape_key_names):
         if len(shape_key_names) < 1:
             return
         assert FnContext.get_active_object(FnContext.ensure_context()) == obj
@@ -60,11 +55,11 @@ class FnMorph:
             bpy.ops.object.shape_key_move(type="BOTTOM")
 
     @staticmethod
-    def get_morph_slider(rig: "Model") -> "_MorphSlider":
+    def get_morph_slider(rig):
         return _MorphSlider(rig)
 
     @staticmethod
-    def category_guess(morph: Any) -> None:
+    def category_guess(morph):
         name_lower = morph.name.lower()
         if "mouth" in name_lower:
             morph.category = "MOUTH"
@@ -75,7 +70,7 @@ class FnMorph:
                 morph.category = "EYE"
 
     @classmethod
-    def load_morphs(cls, rig: "Model") -> None:
+    def load_morphs(cls, rig):
         mmd_root = rig.rootObject().mmd_root
         vertex_morphs = mmd_root.vertex_morphs
         uv_morphs = mmd_root.uv_morphs
@@ -94,7 +89,7 @@ class FnMorph:
                     cls.category_guess(item)
 
     @staticmethod
-    def remove_shape_key(mesh_object: Object, shape_key_name: str) -> None:
+    def remove_shape_key(mesh_object: bpy.types.Object, shape_key_name: str):
         assert isinstance(mesh_object.data, bpy.types.Mesh)
 
         shape_keys = mesh_object.data.shape_keys
@@ -106,7 +101,7 @@ class FnMorph:
             FnObject.mesh_remove_shape_key(mesh_object, key_blocks[shape_key_name])
 
     @staticmethod
-    def copy_shape_key(mesh_object: Object, src_name: str, dest_name: str) -> None:
+    def copy_shape_key(mesh_object: bpy.types.Object, src_name: str, dest_name: str):
         assert isinstance(mesh_object.data, bpy.types.Mesh)
 
         shape_keys = mesh_object.data.shape_keys
@@ -128,13 +123,13 @@ class FnMorph:
         mesh_object.active_shape_key_index = key_blocks.find(dest_name)
 
     @staticmethod
-    def get_uv_morph_vertex_groups(obj: Object, morph_name: Optional[str] = None, offset_axes: str = "XYZW") -> Iterator[Tuple[bpy.types.VertexGroup, str, str]]:
+    def get_uv_morph_vertex_groups(obj, morph_name=None, offset_axes="XYZW"):
         pattern = "UV_%s[+-][%s]$" % (morph_name or ".{1,}", offset_axes or "XYZW")
         # yield (vertex_group, morph_name, axis),...
         return ((g, g.name[3:-2], g.name[-2:]) for g in obj.vertex_groups if re.match(pattern, g.name))
 
     @staticmethod
-    def copy_uv_morph_vertex_groups(obj: Object, src_name: str, dest_name: str) -> None:
+    def copy_uv_morph_vertex_groups(obj, src_name, dest_name):
         for vg, n, x in FnMorph.get_uv_morph_vertex_groups(obj, dest_name):
             obj.vertex_groups.remove(vg)
 
@@ -145,12 +140,12 @@ class FnMorph:
             obj.vertex_groups.active.name = vg_name.replace(src_name, dest_name)
 
     @staticmethod
-    def overwrite_bone_morphs_from_action_pose(armature_object: Object) -> None:
+    def overwrite_bone_morphs_from_action_pose(armature_object):
         armature = armature_object.id_data
 
         # Use animation_data and action instead of action_pose
         if armature.animation_data is None or armature.animation_data.action is None:
-            logger.warning('Armature "%s" has no animation data or action', armature_object.name)
+            logger.warning('[WARNING] armature "%s" has no animation data or action', armature_object.name)
             return
 
         action = armature.animation_data.action
@@ -164,7 +159,7 @@ class FnMorph:
         bone_morphs = mmd_root.bone_morphs
 
         utils.selectAObject(armature_object)
-        original_mode = bpy.context.object.mode
+        original_mode = bpy.context.active_object.mode
         bpy.ops.object.mode_set(mode="POSE")
         try:
             for index, pose_marker in enumerate(pose_markers):
@@ -189,9 +184,9 @@ class FnMorph:
         utils.selectAObject(root)
 
     @staticmethod
-    def clean_uv_morph_vertex_groups(obj: Object) -> None:
+    def clean_uv_morph_vertex_groups(obj):
         # remove empty vertex groups of uv morphs
-        vg_indices: Set[int] = {g.index for g, n, x in FnMorph.get_uv_morph_vertex_groups(obj)}
+        vg_indices = {g.index for g, n, x in FnMorph.get_uv_morph_vertex_groups(obj)}
         vertex_groups = obj.vertex_groups
         for v in obj.data.vertices:
             for x in v.groups:
@@ -205,8 +200,8 @@ class FnMorph:
             vertex_groups.remove(vg)
 
     @staticmethod
-    def get_uv_morph_offset_map(obj: Object, morph: Any) -> Dict[int, List[float]]:
-        offset_map: Dict[int, List[float]] = {}  # offset_map[vertex_index] = offset_xyzw
+    def get_uv_morph_offset_map(obj, morph):
+        offset_map = {}  # offset_map[vertex_index] = offset_xyzw
         if morph.data_type == "VERTEX_GROUP":
             scale = morph.vertex_group_scale
             axis_map = {g.index: x for g, n, x in FnMorph.get_uv_morph_vertex_groups(obj, morph.name)}
@@ -221,13 +216,13 @@ class FnMorph:
             for val in morph.data:
                 i = val.index
                 if i in offset_map:
-                    offset_map[i] = [a + b for a, b in zip(offset_map[i], val.offset)]
+                    offset_map[i] = [a + b for a, b in zip(offset_map[i], val.offset, strict=False)]
                 else:
                     offset_map[i] = val.offset
         return offset_map
 
     @staticmethod
-    def store_uv_morph_data(obj: Object, morph: Any, offsets: Optional[List[Any]] = None, offset_axes: str = "XYZW") -> None:
+    def store_uv_morph_data(obj, morph, offsets=None, offset_axes="XYZW"):
         vertex_groups = obj.vertex_groups
         morph_name = getattr(morph, "name", None)
         if offset_axes:
@@ -246,13 +241,13 @@ class FnMorph:
         max_value = max(max(abs(x) for x in v) for v in offset_map.values() or ([0],))
         scale = morph.vertex_group_scale = max(abs(morph.vertex_group_scale), max_value)
         for idx, offset in offset_map.items():
-            for val, axis in zip(offset, "XYZW"):
+            for val, axis in zip(offset, "XYZW", strict=False):
                 if abs(val) > 1e-4:
-                    vg_name = "UV_{0}{1}{2}".format(morph_name, "-" if val < 0 else "+", axis)
+                    vg_name = f"UV_{morph_name}{'-' if val < 0 else '+'}{axis}"
                     vg = vertex_groups.get(vg_name, None) or vertex_groups.new(name=vg_name)
                     vg.add(index=[idx], weight=abs(val) / scale, type="REPLACE")
 
-    def update_mat_related_mesh(self, new_mesh: Optional[Object] = None) -> None:
+    def update_mat_related_mesh(self, new_mesh=None):
         for offset in self.__morph.data:
             # Use the new_mesh if provided
             meshObj = new_mesh
@@ -272,28 +267,28 @@ class FnMorph:
                 offset.related_mesh = meshObj.data.name
 
     @staticmethod
-    def clean_duplicated_material_morphs(mmd_root_object: Object) -> None:
+    def clean_duplicated_material_morphs(mmd_root_object: bpy.types.Object):
         """Clean duplicated material_morphs and data from mmd_root_object.mmd_root.material_morphs[].data[]"""
         mmd_root = mmd_root_object.mmd_root
 
-        def morph_data_equals(l: Any, r: Any) -> bool:
+        def morph_data_equals(left, right) -> bool:
             return (
-                l.related_mesh_data == r.related_mesh_data
-                and l.offset_type == r.offset_type
-                and l.material == r.material
-                and all(a == b for a, b in zip(l.diffuse_color, r.diffuse_color))
-                and all(a == b for a, b in zip(l.specular_color, r.specular_color))
-                and l.shininess == r.shininess
-                and all(a == b for a, b in zip(l.ambient_color, r.ambient_color))
-                and all(a == b for a, b in zip(l.edge_color, r.edge_color))
-                and l.edge_weight == r.edge_weight
-                and all(a == b for a, b in zip(l.texture_factor, r.texture_factor))
-                and all(a == b for a, b in zip(l.sphere_texture_factor, r.sphere_texture_factor))
-                and all(a == b for a, b in zip(l.toon_texture_factor, r.toon_texture_factor))
+                left.related_mesh_data == right.related_mesh_data
+                and left.offset_type == right.offset_type
+                and left.material == right.material
+                and all(a == b for a, b in zip(left.diffuse_color, right.diffuse_color, strict=False))
+                and all(a == b for a, b in zip(left.specular_color, right.specular_color, strict=False))
+                and left.shininess == right.shininess
+                and all(a == b for a, b in zip(left.ambient_color, right.ambient_color, strict=False))
+                and all(a == b for a, b in zip(left.edge_color, right.edge_color, strict=False))
+                and left.edge_weight == right.edge_weight
+                and all(a == b for a, b in zip(left.texture_factor, right.texture_factor, strict=False))
+                and all(a == b for a, b in zip(left.sphere_texture_factor, right.sphere_texture_factor, strict=False))
+                and all(a == b for a, b in zip(left.toon_texture_factor, right.toon_texture_factor, strict=False))
             )
 
-        def morph_equals(l: Any, r: Any) -> bool:
-            return len(l.data) == len(r.data) and all(morph_data_equals(a, b) for a, b in zip(l.data, r.data))
+        def morph_equals(left, right) -> bool:
+            return len(left.data) == len(right.data) and all(morph_data_equals(a, b) for a, b in zip(left.data, right.data, strict=False))
 
         # Remove duplicated mmd_root.material_morphs.data[]
         for material_morph in mmd_root.material_morphs:
@@ -327,7 +322,7 @@ class _MorphSlider:
     def __init__(self, model: "Model"):
         self.__rig = model
 
-    def placeholder(self, create: bool = False, binded: bool = False) -> Optional[Object]:
+    def placeholder(self, create=False, binded=False):
         rig = self.__rig
         root = rig.rootObject()
         obj = next((x for x in root.children if x.mmd_type == "PLACEHOLDER" and x.type == "MESH"), None)
@@ -345,11 +340,11 @@ class _MorphSlider:
         return obj
 
     @property
-    def dummy_armature(self) -> Optional[Object]:
+    def dummy_armature(self):
         obj = self.placeholder()
         return self.__dummy_armature(obj) if obj else None
 
-    def __dummy_armature(self, obj: Object, create: bool = False) -> Optional[Object]:
+    def __dummy_armature(self, obj, create=False):
         arm = next((x for x in obj.children if x.mmd_type == "PLACEHOLDER" and x.type == "ARMATURE"), None)
         if create and arm is None:
             arm = bpy.data.objects.new(name=".dummy_armature", object_data=bpy.data.armatures.new(name=".dummy_armature"))
@@ -362,7 +357,7 @@ class _MorphSlider:
             FnBone.setup_special_bone_collections(arm)
         return arm
 
-    def get(self, morph_name: str) -> Optional[ShapeKey]:
+    def get(self, morph_name):
         obj = self.placeholder()
         if obj is None:
             return None
@@ -371,13 +366,13 @@ class _MorphSlider:
             return None
         return key_blocks.get(morph_name, None)
 
-    def create(self) -> Object:
+    def create(self):
         self.__rig.loadMorphs()
         obj = self.placeholder(create=True)
         self.__load(obj, self.__rig.rootObject().mmd_root)
         return obj
 
-    def __load(self, obj: Object, mmd_root: Any) -> None:
+    def __load(self, obj, mmd_root):
         attr_list = ("group", "vertex", "bone", "uv", "material")
         morph_sliders = obj.data.shape_keys.key_blocks
         for m in (x for attr in attr_list for x in getattr(mmd_root, attr + "_morphs", ())):
@@ -388,15 +383,15 @@ class _MorphSlider:
                 obj.shape_key_add(name=name, from_mix=False)
 
     @staticmethod
-    def __driver_variables(id_data: Any, path: str, index: int = -1) -> Tuple[Any, Any]:
+    def __driver_variables(id_data, path, index=-1):
         d = id_data.driver_add(path, index)
         variables = d.driver.variables
-        for x in variables:
+        for x in reversed(variables):
             variables.remove(x)
         return d.driver, variables
 
     @staticmethod
-    def __add_single_prop(variables: Any, id_obj: Object, data_path: str, prefix: str) -> Any:
+    def __add_single_prop(variables, id_obj, data_path, prefix):
         var = variables.new()
         var.name = f"{prefix}{len(variables)}"
         var.type = "SINGLE_PROP"
@@ -407,7 +402,7 @@ class _MorphSlider:
         return var
 
     @staticmethod
-    def __shape_key_driver_check(key_block: ShapeKey, resolve_path: bool = False) -> bool:
+    def __shape_key_driver_check(key_block, resolve_path=False):
         if resolve_path:
             try:
                 key_block.id_data.path_resolve(key_block.path_from_id())
@@ -421,22 +416,20 @@ class _MorphSlider:
             d = next((i for i in key_block.id_data.animation_data.drivers if i.data_path == data_path), None)
         return not d or d.driver.expression == "".join(("*w", "+g", "v")[-1 if i < 1 else i % 2] + str(i + 1) for i in range(len(d.driver.variables)))
 
-    def __cleanup(self, names_in_use: Optional[Dict[str, Any]] = None) -> None:
-        from math import ceil, floor
-
+    def __cleanup(self, names_in_use=None):
         names_in_use = names_in_use or {}
         rig = self.__rig
         morph_sliders = self.placeholder()
         morph_sliders = morph_sliders.data.shape_keys.key_blocks if morph_sliders else {}
         for mesh_object in rig.meshes():
-            for kb in getattr(mesh_object.data.shape_keys, "key_blocks", cast(Tuple[ShapeKey], ())):
+            for kb in getattr(mesh_object.data.shape_keys, "key_blocks", cast("Tuple[bpy.types.ShapeKey]", ())):
                 if kb.name in names_in_use:
                     continue
 
                 if kb.name.startswith("mmd_bind"):
                     kb.driver_remove("value")
                     ms = morph_sliders[kb.relative_key.name]
-                    kb.relative_key.slider_min, kb.relative_key.slider_max = min(ms.slider_min, floor(ms.value)), max(ms.slider_max, ceil(ms.value))
+                    kb.relative_key.slider_min, kb.relative_key.slider_max = min(ms.slider_min, math.floor(ms.value)), max(ms.slider_max, math.ceil(ms.value))
                     kb.relative_key.value = ms.value
                     kb.relative_key.mute = False
                     FnObject.mesh_remove_shape_key(mesh_object, kb)
@@ -444,9 +437,9 @@ class _MorphSlider:
                 elif kb.name in morph_sliders and self.__shape_key_driver_check(kb):
                     ms = morph_sliders[kb.name]
                     kb.driver_remove("value")
-                    kb.slider_min, kb.slider_max = min(ms.slider_min, floor(kb.value)), max(ms.slider_max, ceil(kb.value))
+                    kb.slider_min, kb.slider_max = min(ms.slider_min, math.floor(kb.value)), max(ms.slider_max, math.ceil(kb.value))
 
-            for m in mesh_object.modifiers:  # uv morph
+            for m in reversed(mesh_object.modifiers):  # uv morph
                 if m.name.startswith("mmd_bind") and m.name not in names_in_use:
                     mesh_object.modifiers.remove(m)
 
@@ -461,13 +454,13 @@ class _MorphSlider:
         attributes = set(TransformConstraintOp.min_max_attributes("LOCATION", "to"))
         attributes |= set(TransformConstraintOp.min_max_attributes("ROTATION", "to"))
         for b in rig.armature().pose.bones:
-            for c in b.constraints:
+            for c in reversed(b.constraints):
                 if c.name.startswith("mmd_bind") and c.name[:-4] not in names_in_use:
                     for attr in attributes:
                         c.driver_remove(attr)
                     b.constraints.remove(c)
 
-    def unbind(self) -> None:
+    def unbind(self):
         mmd_root = self.__rig.rootObject().mmd_root
 
         # after unbind, the weird lag problem will disappear.
@@ -490,7 +483,7 @@ class _MorphSlider:
                         b.driver_remove("rotation_quaternion")
         self.__cleanup()
 
-    def bind(self) -> None:
+    def bind(self):
         rig = self.__rig
         root = rig.rootObject()
         armObj = rig.armature()
@@ -504,10 +497,10 @@ class _MorphSlider:
         morph_sliders = obj.data.shape_keys.key_blocks
 
         # data gathering
-        group_map: Dict[Tuple[str, str], List[List[Any]]] = {}
+        group_map = {}
 
-        shape_key_map: Dict[str, List[Tuple[ShapeKey, str, List[Any]]]] = {}
-        uv_morph_map: Dict[str, List[Tuple[str, str, str, List[Any]]]] = {}
+        shape_key_map = {}
+        uv_morph_map = {}
         for mesh_object in rig.meshes():
             mesh_object.show_only_shape_key = False
             key_blocks = getattr(mesh_object.data.shape_keys, "key_blocks", ())
@@ -528,11 +521,11 @@ class _MorphSlider:
                 kb_bind.slider_max = 10
 
                 data_path = 'data.shape_keys.key_blocks["%s"].value' % kb_name.replace('"', '\\"')
-                groups: List[Any] = []
+                groups = []
                 shape_key_map.setdefault(name_bind, []).append((kb_bind, data_path, groups))
                 group_map.setdefault(("vertex_morphs", kb_name), []).append(groups)
 
-            uv_layers = [l.name for l in mesh_object.data.uv_layers if not l.name.startswith("_")]
+            uv_layers = [layer.name for layer in mesh_object.data.uv_layers if not layer.name.startswith("_")]
             uv_layers += [""] * (5 - len(uv_layers))
             for vg, morph_name, axis in FnMorph.get_uv_morph_vertex_groups(mesh_object):
                 morph = mmd_root.uv_morphs.get(morph_name, None)
@@ -544,7 +537,7 @@ class _MorphSlider:
                     continue
 
                 name_bind = "mmd_bind%s" % hash(vg.name)
-                uv_morph_map.setdefault(name_bind, [])
+                uv_morph_map.setdefault(name_bind, ())
                 mod = mesh_object.modifiers.get(name_bind, None) or mesh_object.modifiers.new(name=name_bind, type="UV_WARP")
                 mod.show_expanded = False
                 mod.vertex_group = vg.name
@@ -557,13 +550,13 @@ class _MorphSlider:
                 else:
                     mod.bone_from, mod.bone_to = name_bind, "mmd_bind_ctrl_base"
 
-        bone_offset_map: Dict[str, Tuple[str, Any, str, str, List[Any]]] = {}
+        bone_offset_map = {}
         with bpyutils.edit_object(arm) as data:
             from .bone import FnBone
 
             edit_bones = data.edit_bones
 
-            def __get_bone(name: str, parent: Optional[bpy.types.EditBone]) -> bpy.types.EditBone:
+            def __get_bone(name, parent):
                 b = edit_bones.get(name, None) or edit_bones.new(name=name)
                 b.head = (0, 0, 0)
                 b.tail = (0, 0, 1)
@@ -580,7 +573,7 @@ class _MorphSlider:
                         continue
                     d.name = name_bind = f"mmd_bind{hash(d)}"
                     b = FnBone.set_edit_bone_to_shadow(__get_bone(name_bind, None))
-                    groups: List[Any] = []
+                    groups = []
                     bone_offset_map[name_bind] = (m.name, d, b.name, data_path, groups)
                     group_map.setdefault(("bone_morphs", m.name), []).append(groups)
 
@@ -591,21 +584,21 @@ class _MorphSlider:
                 scale_path = f'mmd_root.uv_morphs["{morph_name}"].vertex_group_scale'
                 name_bind = f"mmd_bind{hash(m.name)}"
                 b = FnBone.set_edit_bone_to_dummy(__get_bone(name_bind, ctrl_base))
-                groups: List[Any] = []
+                groups = []
                 uv_morph_map.setdefault(name_bind, []).append((b.name, data_path, scale_path, groups))
                 group_map.setdefault(("uv_morphs", m.name), []).append(groups)
 
-            used_bone_names: Set[str] = set(bone_offset_map.keys()) | set(uv_morph_map.keys())
+            used_bone_names = bone_offset_map.keys() | uv_morph_map.keys()
             used_bone_names.add(ctrl_base.name)
-            for b in edit_bones:  # cleanup
+            for b in reversed(edit_bones):  # cleanup
                 if b.name.startswith("mmd_bind") and b.name not in used_bone_names:
                     edit_bones.remove(b)
 
-        material_offset_map: Dict[str, Any] = {}
+        material_offset_map = {}
         for m in mmd_root.material_morphs:
             morph_name = m.name.replace('"', '\\"')
             data_path = f'data.shape_keys.key_blocks["{morph_name}"].value'
-            groups: List[Any] = []
+            groups = []
             group_map.setdefault(("material_morphs", m.name), []).append(groups)
             material_offset_map.setdefault("group_dict", {})[m.name] = (data_path, groups)
             for d in m.data:
@@ -616,7 +609,7 @@ class _MorphSlider:
 
         for m in mmd_root.group_morphs:
             if len(m.data) != len(set(m.data.keys())):
-                logger.warning('Found duplicated morph data in Group Morph "%s"', m.name)
+                logger.warning(' * Found duplicated morph data in Group Morph "%s"', m.name)
             morph_name = m.name.replace('"', '\\"')
             morph_path = f'data.shape_keys.key_blocks["{morph_name}"].value'
             for d in m.data:
@@ -627,7 +620,7 @@ class _MorphSlider:
 
         self.__cleanup(shape_key_map.keys() | bone_offset_map.keys() | uv_morph_map.keys())
 
-        def __config_groups(variables: Any, expression: str, groups: List[Any]) -> str:
+        def __config_groups(variables, expression, groups):
             for g_name, morph_path, factor_path in groups:
                 var = self.__add_single_prop(variables, obj, morph_path, "g")
                 fvar = self.__add_single_prop(variables, root, factor_path, "w")
@@ -635,7 +628,7 @@ class _MorphSlider:
             return expression
 
         # vertex morphs
-        for kb_bind, morph_data_path, groups in (i for l in shape_key_map.values() for i in l):
+        for kb_bind, morph_data_path, groups in (i for value_list in shape_key_map.values() for i in value_list):
             driver, variables = self.__driver_variables(kb_bind, "value")
             var = self.__add_single_prop(variables, obj, morph_data_path, "v")
             if kb_bind.name.startswith("mmd_bind"):
@@ -646,7 +639,7 @@ class _MorphSlider:
             kb_bind.mute = False
 
         # bone morphs
-        def __config_bone_morph(constraints: bpy.types.ArmatureConstraints, map_type: str, attributes: Set[str], val: float, val_str: str) -> None:
+        def __config_bone_morph(constraints, map_type, attributes, val, val_str):
             c_name = f"mmd_bind{hash(data)}.{map_type[:3]}"
             c = TransformConstraintOp.create(constraints, c_name, map_type)
             TransformConstraintOp.update_min_max(c, val, None)
@@ -660,8 +653,6 @@ class _MorphSlider:
                 sign = "-" if attr.startswith("to_min") else ""
                 driver.expression = f"{sign}{val_str}*({expression})"
 
-        from math import pi
-
         attributes_rot = TransformConstraintOp.min_max_attributes("ROTATION", "to")
         attributes_loc = TransformConstraintOp.min_max_attributes("LOCATION", "to")
         for morph_name, data, bname, morph_data_path, groups in bone_offset_map.values():
@@ -671,7 +662,7 @@ class _MorphSlider:
             b.is_mmd_shadow_bone = True
             b.mmd_shadow_bone_type = "BIND"
             pb = armObj.pose.bones[data.bone]
-            __config_bone_morph(pb.constraints, "ROTATION", attributes_rot, pi, "pi")
+            __config_bone_morph(pb.constraints, "ROTATION", attributes_rot, math.pi, "pi")
             __config_bone_morph(pb.constraints, "LOCATION", attributes_loc, 100, "100")
 
         # uv morphs
@@ -680,7 +671,7 @@ class _MorphSlider:
         b = arm.pose.bones["mmd_bind_ctrl_base"]
         b.is_mmd_shadow_bone = True
         b.mmd_shadow_bone_type = "BIND"
-        for bname, data_path, scale_path, groups in (i for l in uv_morph_map.values() for i in l):
+        for bname, data_path, scale_path, groups in (i for value_list in uv_morph_map.values() for i in value_list):
             b = arm.pose.bones[bname]
             b.is_mmd_shadow_bone = True
             b.mmd_shadow_bone_type = "BIND"
@@ -694,9 +685,9 @@ class _MorphSlider:
 
         group_dict = material_offset_map.get("group_dict", {})
 
-        def __config_material_morph(mat: Material, morph_list: List[Tuple[str, Any, str]]) -> None:
+        def __config_material_morph(mat, morph_list):
             nodes = _MaterialMorph.setup_morph_nodes(mat, tuple(x[1] for x in morph_list))
-            for (morph_name, data, name_bind), node in zip(morph_list, nodes):
+            for (morph_name, data, name_bind), node in zip(morph_list, nodes, strict=False):
                 node.label, node.name = morph_name, name_bind
                 data_path, groups = group_dict[morph_name]
                 driver, variables = self.__driver_variables(mat.node_tree, node.inputs[0].path_from_id("default_value"))
@@ -706,7 +697,7 @@ class _MorphSlider:
         for mat in (m for m in rig.materials() if m and m.use_nodes and not m.name.startswith("mmd_")):
             mul_all, add_all = material_offset_map.get("#", ([], []))
             if mat.name == "":
-                logger.warning("Oh no. The material name should never be empty.")
+                logger.warning("Oh no. The material name should never empty.")
                 mul_list, add_list = [], []
             else:
                 mat_name = "#" + mat.name
@@ -722,7 +713,7 @@ class _MorphSlider:
 
 class MigrationFnMorph:
     @staticmethod
-    def update_mmd_morph() -> None:
+    def update_mmd_morph():
         from .material import FnMaterial
 
         for root in bpy.data.objects:
@@ -733,7 +724,7 @@ class MigrationFnMorph:
                 for morph_data in mat_morph.data:
                     if morph_data.material_data is not None:
                         # SUPPORT_UNTIL: 5 LTS
-                        # The material_id is also no longer used, but for compatibility with older version mmd_tools, keep it.
+                        # The material_id is also no longer used, but for compatibility with older version mmd_tools_local, keep it.
                         if "material_id" not in morph_data.material_data.mmd_material or "material_id" not in morph_data or morph_data.material_data.mmd_material["material_id"] == morph_data["material_id"]:
                             # In the new version, the related_mesh property is no longer used.
                             # Explicitly remove this property to avoid misuse.
@@ -741,15 +732,14 @@ class MigrationFnMorph:
                                 del morph_data["related_mesh"]
                             continue
 
-                        else:
-                            # Compat case. The new version mmd_tools saved. And old version mmd_tools edit. Then new version mmd_tools load again.
+                        # Compat case. The new version mmd_tools_local saved. And old version mmd_tools_local edit. Then new version mmd_tools_local load again.
                         # Go update path.
                         pass
 
                     morph_data.material_data = None
                     if "material_id" in morph_data:
                         mat_id = morph_data["material_id"]
-                        if mat_id != -1:
+                        if mat_id >= 0:
                             fnMat = FnMaterial.from_material_id(mat_id)
                             if fnMat:
                                 morph_data.material_data = fnMat.material
@@ -764,11 +754,11 @@ class MigrationFnMorph:
                             morph_data.related_mesh_data = bpy.data.meshes[related_mesh]
 
     @staticmethod
-    def ensure_material_id_not_conflict() -> None:
-        mat_ids_set: Set[int] = set()
+    def ensure_material_id_not_conflict():
+        mat_ids_set = set()
 
         # The reference library properties cannot be modified and bypassed in advance.
-        need_update_mat: List[Material] = []
+        need_update_mat = []
         for mat in bpy.data.materials:
             if mat.mmd_material.material_id < 0:
                 continue
@@ -783,7 +773,7 @@ class MigrationFnMorph:
             mat_ids_set.add(mat.mmd_material.material_id)
 
     @staticmethod
-    def compatible_with_old_version_mmd_tools() -> None:
+    def compatible_with_old_version_mmd_tools_local():
         MigrationFnMorph.ensure_material_id_not_conflict()
 
         for root in bpy.data.objects:

core/mmd/core/pmx/__init__.py

@@ -5,7 +5,7 @@
 # Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
 # MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
 
-import logging
+from .....core.logging_setup import logger
 import os
 import struct
 
@@ -40,7 +40,7 @@ class FileStream:
 
     def close(self):
         if self.__file_obj is not None:
-            logging.debug('close the file("%s")', self.__path)
+            logger.debug('close the file("%s")', self.__path)
             self.__file_obj.close()
             self.__file_obj = None
 
@@ -260,20 +260,20 @@ class Header:
             return 4
 
     def load(self, fs):
-        logging.info('loading pmx header information...')
+        logger.info('loading pmx header information...')
         self.sign = fs.readBytes(4)
-        logging.debug('File signature is %s', self.sign)
+        logger.debug('File signature is %s', self.sign)
         if self.sign[:3] != self.PMX_SIGN[:3]:
-            logging.info('File signature is invalid')
-            logging.error('This file is unsupported format, or corrupt file.')
+            logger.info('File signature is invalid')
+            logger.error('This file is unsupported format, or corrupt file.')
             raise InvalidFileError('File signature is invalid.')
         self.version = fs.readFloat()
-        logging.info('pmx format version: %f', self.version)
+        logger.info('pmx format version: %f', self.version)
         if self.version != self.VERSION:
-            logging.error('PMX version %.1f is unsupported', self.version)
+            logger.error('PMX version %.1f is unsupported', self.version)
             raise UnsupportedVersionError('unsupported PMX version: %.1f'%self.version)
         if fs.readByte() != 8 or self.sign[3] != self.PMX_SIGN[3]:
-            logging.warning(' * This file might be corrupted.')
+            logger.warning(' * This file might be corrupted.')
         self.encoding = Encoding(fs.readByte())
         self.additional_uvs = fs.readByte()
         self.vertex_index_size = fs.readByte()
@@ -283,19 +283,19 @@ class Header:
         self.morph_index_size = fs.readByte()
         self.rigid_index_size = fs.readByte()
 
-        logging.info('----------------------------')
-        logging.info('pmx header information')
-        logging.info('----------------------------')
-        logging.info('pmx version: %.1f', self.version)
-        logging.info('encoding: %s', str(self.encoding))
-        logging.info('number of uvs: %d', self.additional_uvs)
-        logging.info('vertex index size: %d byte(s)', self.vertex_index_size)
-        logging.info('texture index: %d byte(s)', self.texture_index_size)
-        logging.info('material index: %d byte(s)', self.material_index_size)
-        logging.info('bone index: %d byte(s)', self.bone_index_size)
-        logging.info('morph index: %d byte(s)', self.morph_index_size)
-        logging.info('rigid index: %d byte(s)', self.rigid_index_size)
-        logging.info('----------------------------')
+        logger.info('----------------------------')
+        logger.info('pmx header information')
+        logger.info('----------------------------')
+        logger.info('pmx version: %.1f', self.version)
+        logger.info('encoding: %s', str(self.encoding))
+        logger.info('number of uvs: %d', self.additional_uvs)
+        logger.info('vertex index size: %d byte(s)', self.vertex_index_size)
+        logger.info('texture index: %d byte(s)', self.texture_index_size)
+        logger.info('material index: %d byte(s)', self.material_index_size)
+        logger.info('bone index: %d byte(s)', self.bone_index_size)
+        logger.info('morph index: %d byte(s)', self.morph_index_size)
+        logger.info('rigid index: %d byte(s)', self.rigid_index_size)
+        logger.info('----------------------------')
 
     def save(self, fs):
         fs.writeBytes(self.PMX_SIGN)
@@ -364,27 +364,27 @@ class Model:
         self.comment = fs.readStr()
         self.comment_e = fs.readStr()
 
-        logging.info('Model name: %s', self.name)
-        logging.info('Model name(english): %s', self.name_e)
-        logging.info('Comment:%s', self.comment)
-        logging.info('Comment(english):%s', self.comment_e)
+        logger.info('Model name: %s', self.name)
+        logger.info('Model name(english): %s', self.name_e)
+        logger.info('Comment:%s', self.comment)
+        logger.info('Comment(english):%s', self.comment_e)
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info('Load Vertices')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info('Load Vertices')
+        logger.info('------------------------------')
         num_vertices = fs.readInt()
         self.vertices = []
         for i in range(num_vertices):
             v = Vertex()
             v.load(fs)
             self.vertices.append(v)
-        logging.info('----- Loaded %d vertices', len(self.vertices))
+        logger.info('----- Loaded %d vertices', len(self.vertices))
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info(' Load Faces')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info(' Load Faces')
+        logger.info('------------------------------')
         num_faces = fs.readInt()
         self.faces = []
         for i in range(int(num_faces/3)):
@@ -392,25 +392,25 @@ class Model:
             f2 = fs.readVertexIndex()
             f3 = fs.readVertexIndex()
             self.faces.append((f3, f2, f1))
-        logging.info(' Load %d faces', len(self.faces))
+        logger.info(' Load %d faces', len(self.faces))
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info(' Load Textures')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info(' Load Textures')
+        logger.info('------------------------------')
         num_textures = fs.readInt()
         self.textures = []
         for i in range(num_textures):
             t = Texture()
             t.load(fs)
             self.textures.append(t)
-            logging.info('Texture %d: %s', i, t.path)
-        logging.info(' ----- Loaded %d textures', len(self.textures))
+            logger.info('Texture %d: %s', i, t.path)
+        logger.info(' ----- Loaded %d textures', len(self.textures))
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info(' Load Materials')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info(' Load Materials')
+        logger.info('------------------------------')
         num_materials = fs.readInt()
         self.materials = []
         for i in range(num_materials):
@@ -418,38 +418,38 @@ class Model:
             m.load(fs, num_textures)
             self.materials.append(m)
 
-            logging.info('Material %d: %s', i, m.name)
-            logging.debug('  Name(english): %s', m.name_e)
-            logging.debug('  Comment: %s', m.comment)
-            logging.debug('  Vertex Count: %d', m.vertex_count)
-            logging.debug('  Diffuse: (%.2f, %.2f, %.2f, %.2f)', *m.diffuse)
-            logging.debug('  Specular: (%.2f, %.2f, %.2f)', *m.specular)
-            logging.debug('  Shininess: %f', m.shininess)
-            logging.debug('  Ambient: (%.2f, %.2f, %.2f)', *m.ambient)
-            logging.debug('  Double Sided: %s', str(m.is_double_sided))
-            logging.debug('  Drop Shadow: %s', str(m.enabled_drop_shadow))
-            logging.debug('  Self Shadow: %s', str(m.enabled_self_shadow))
-            logging.debug('  Self Shadow Map: %s', str(m.enabled_self_shadow_map))
-            logging.debug('  Edge: %s', str(m.enabled_toon_edge))
-            logging.debug('  Edge Color: (%.2f, %.2f, %.2f, %.2f)', *m.edge_color)
-            logging.debug('  Edge Size: %.2f', m.edge_size)
+            logger.info('Material %d: %s', i, m.name)
+            logger.debug('  Name(english): %s', m.name_e)
+            logger.debug('  Comment: %s', m.comment)
+            logger.debug('  Vertex Count: %d', m.vertex_count)
+            logger.debug('  Diffuse: (%.2f, %.2f, %.2f, %.2f)', *m.diffuse)
+            logger.debug('  Specular: (%.2f, %.2f, %.2f)', *m.specular)
+            logger.debug('  Shininess: %f', m.shininess)
+            logger.debug('  Ambient: (%.2f, %.2f, %.2f)', *m.ambient)
+            logger.debug('  Double Sided: %s', str(m.is_double_sided))
+            logger.debug('  Drop Shadow: %s', str(m.enabled_drop_shadow))
+            logger.debug('  Self Shadow: %s', str(m.enabled_self_shadow))
+            logger.debug('  Self Shadow Map: %s', str(m.enabled_self_shadow_map))
+            logger.debug('  Edge: %s', str(m.enabled_toon_edge))
+            logger.debug('  Edge Color: (%.2f, %.2f, %.2f, %.2f)', *m.edge_color)
+            logger.debug('  Edge Size: %.2f', m.edge_size)
             if m.texture != -1:
-                logging.debug('  Texture Index: %d', m.texture)
+                logger.debug('  Texture Index: %d', m.texture)
             else:
-                logging.debug('  Texture: None')
+                logger.debug('  Texture: None')
             if m.sphere_texture != -1:
-                logging.debug('  Sphere Texture Index: %d', m.sphere_texture)
-                logging.debug('  Sphere Texture Mode: %d', m.sphere_texture_mode)
+                logger.debug('  Sphere Texture Index: %d', m.sphere_texture)
+                logger.debug('  Sphere Texture Mode: %d', m.sphere_texture_mode)
             else:
-                logging.debug('  Sphere Texture: None')
-            logging.debug('')
+                logger.debug('  Sphere Texture: None')
+            logger.debug('')
 
-        logging.info('----- Loaded %d  materials.', len(self.materials))
+        logger.info('----- Loaded %d  materials.', len(self.materials))
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info(' Load Bones')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info(' Load Bones')
+        logger.info('------------------------------')
         num_bones = fs.readInt()
         self.bones = []
         for i in range(num_bones):
@@ -457,33 +457,33 @@ class Model:
             b.load(fs)
             self.bones.append(b)
 
-            logging.info('Bone %d: %s', i, b.name)
-            logging.debug('  Name(english): %s', b.name_e)
-            logging.debug('  Location: (%f, %f, %f)', *b.location)
-            logging.debug('  displayConnection: %s', str(b.displayConnection))
-            logging.debug('  Parent: %s', str(b.parent))
-            logging.debug('  Transform Order: %s', str(b.transform_order))
-            logging.debug('  Rotatable: %s', str(b.isRotatable))
-            logging.debug('  Movable: %s', str(b.isMovable))
-            logging.debug('  Visible: %s', str(b.visible))
-            logging.debug('  Controllable: %s', str(b.isControllable))
-            logging.debug('  Additional Location: %s', str(b.hasAdditionalLocation))
-            logging.debug('  Additional Rotation: %s', str(b.hasAdditionalRotate))
+            logger.info('Bone %d: %s', i, b.name)
+            logger.debug('  Name(english): %s', b.name_e)
+            logger.debug('  Location: (%f, %f, %f)', *b.location)
+            logger.debug('  displayConnection: %s', str(b.displayConnection))
+            logger.debug('  Parent: %s', str(b.parent))
+            logger.debug('  Transform Order: %s', str(b.transform_order))
+            logger.debug('  Rotatable: %s', str(b.isRotatable))
+            logger.debug('  Movable: %s', str(b.isMovable))
+            logger.debug('  Visible: %s', str(b.visible))
+            logger.debug('  Controllable: %s', str(b.isControllable))
+            logger.debug('  Additional Location: %s', str(b.hasAdditionalLocation))
+            logger.debug('  Additional Rotation: %s', str(b.hasAdditionalRotate))
             if b.additionalTransform is not None:
-                logging.debug('  Additional Transform: Bone:%d, influence: %f', *b.additionalTransform)
-            logging.debug('  IK: %s', str(b.isIK))
+                logger.debug('  Additional Transform: Bone:%d, influence: %f', *b.additionalTransform)
+            logger.debug('  IK: %s', str(b.isIK))
             if b.isIK:
-                logging.debug('    Unit Angle: %f', b.rotationConstraint)
-                logging.debug('    Target: %d', b.target)
+                logger.debug('    Unit Angle: %f', b.rotationConstraint)
+                logger.debug('    Target: %d', b.target)
                 for j, link in enumerate(b.ik_links):
-                    logging.debug('    IK Link %d: %d, %s - %s', j, link.target, str(link.minimumAngle), str(link.maximumAngle))
-            logging.debug('')
-        logging.info('----- Loaded %d bones.', len(self.bones))
+                    logger.debug('    IK Link %d: %d, %s - %s', j, link.target, str(link.minimumAngle), str(link.maximumAngle))
+            logger.debug('')
+        logger.info('----- Loaded %d bones.', len(self.bones))
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info(' Load Morphs')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info(' Load Morphs')
+        logger.info('------------------------------')
         num_morph = fs.readInt()
         self.morphs = []
         display_categories = {0: 'System', 1: 'Eyebrow', 2: 'Eye', 3: 'Mouth', 4: 'Other'}
@@ -491,16 +491,16 @@ class Model:
             m = Morph.create(fs)
             self.morphs.append(m)
 
-            logging.info('%s %d: %s', m.__class__.__name__, i, m.name)
-            logging.debug('  Name(english): %s', m.name_e)
-            logging.debug('  Category: %s (%d)', display_categories.get(m.category, '#Invalid'), m.category)
-            logging.debug('')
-        logging.info('----- Loaded %d morphs.', len(self.morphs))
+            logger.info('%s %d: %s', m.__class__.__name__, i, m.name)
+            logger.debug('  Name(english): %s', m.name_e)
+            logger.debug('  Category: %s (%d)', display_categories.get(m.category, '#Invalid'), m.category)
+            logger.debug('')
+        logger.info('----- Loaded %d morphs.', len(self.morphs))
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info(' Load Display Items')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info(' Load Display Items')
+        logger.info('------------------------------')
         num_disp = fs.readInt()
         self.display = []
         for i in range(num_disp):
@@ -508,15 +508,15 @@ class Model:
             d.load(fs)
             self.display.append(d)
 
-            logging.info('Display Item %d: %s', i, d.name)
-            logging.debug('  Name(english): %s', d.name_e)
-            logging.debug('')
-        logging.info('----- Loaded %d display items.', len(self.display))
+            logger.info('Display Item %d: %s', i, d.name)
+            logger.debug('  Name(english): %s', d.name_e)
+            logger.debug('')
+        logger.info('----- Loaded %d display items.', len(self.display))
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info(' Load Rigid Bodies')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info(' Load Rigid Bodies')
+        logger.info('------------------------------')
         num_rigid = fs.readInt()
         self.rigids = []
         rigid_types = {0: 'Sphere', 1: 'Box', 2: 'Capsule'}
@@ -525,27 +525,27 @@ class Model:
             r = Rigid()
             r.load(fs)
             self.rigids.append(r)
-            logging.info('Rigid Body %d: %s', i, r.name)
-            logging.debug('  Name(english): %s', r.name_e)
-            logging.debug('  Type: %s', rigid_types[r.type])
-            logging.debug('  Mode: %s (%d)', rigid_modes.get(r.mode, '#Invalid'), r.mode)
-            logging.debug('  Related bone: %s', r.bone)
-            logging.debug('  Collision group: %d', r.collision_group_number)
-            logging.debug('  Collision group mask: 0x%x', r.collision_group_mask)
-            logging.debug('  Size: (%f, %f, %f)', *r.size)
-            logging.debug('  Location: (%f, %f, %f)', *r.location)
-            logging.debug('  Rotation: (%f, %f, %f)', *r.rotation)
-            logging.debug('  Mass: %f', r.mass)
-            logging.debug('  Bounce: %f', r.bounce)
-            logging.debug('  Friction: %f', r.friction)
-            logging.debug('')
+            logger.info('Rigid Body %d: %s', i, r.name)
+            logger.debug('  Name(english): %s', r.name_e)
+            logger.debug('  Type: %s', rigid_types[r.type])
+            logger.debug('  Mode: %s (%d)', rigid_modes.get(r.mode, '#Invalid'), r.mode)
+            logger.debug('  Related bone: %s', r.bone)
+            logger.debug('  Collision group: %d', r.collision_group_number)
+            logger.debug('  Collision group mask: 0x%x', r.collision_group_mask)
+            logger.debug('  Size: (%f, %f, %f)', *r.size)
+            logger.debug('  Location: (%f, %f, %f)', *r.location)
+            logger.debug('  Rotation: (%f, %f, %f)', *r.rotation)
+            logger.debug('  Mass: %f', r.mass)
+            logger.debug('  Bounce: %f', r.bounce)
+            logger.debug('  Friction: %f', r.friction)
+            logger.debug('')
 
-        logging.info('----- Loaded %d rigid bodies.', len(self.rigids))
+        logger.info('----- Loaded %d rigid bodies.', len(self.rigids))
 
-        logging.info('')
-        logging.info('------------------------------')
-        logging.info(' Load Joints')
-        logging.info('------------------------------')
+        logger.info('')
+        logger.info('------------------------------')
+        logger.info(' Load Joints')
+        logger.info('------------------------------')
         num_joints = fs.readInt()
         self.joints = []
         for i in range(num_joints):
@@ -553,19 +553,19 @@ class Model:
             j.load(fs)
             self.joints.append(j)
 
-            logging.info('Joint %d: %s', i, j.name)
-            logging.debug('  Name(english): %s', j.name_e)
-            logging.debug('  Rigid A: %s', j.src_rigid)
-            logging.debug('  Rigid B: %s', j.dest_rigid)
-            logging.debug('  Location: (%f, %f, %f)', *j.location)
-            logging.debug('  Rotation: (%f, %f, %f)', *j.rotation)
-            logging.debug('  Location Limit: (%f, %f, %f) - (%f, %f, %f)', *(j.minimum_location + j.maximum_location))
-            logging.debug('  Rotation Limit: (%f, %f, %f) - (%f, %f, %f)', *(j.minimum_rotation + j.maximum_rotation))
-            logging.debug('  Spring: (%f, %f, %f)', *j.spring_constant)
-            logging.debug('  Spring(rotation): (%f, %f, %f)', *j.spring_rotation_constant)
-            logging.debug('')
+            logger.info('Joint %d: %s', i, j.name)
+            logger.debug('  Name(english): %s', j.name_e)
+            logger.debug('  Rigid A: %s', j.src_rigid)
+            logger.debug('  Rigid B: %s', j.dest_rigid)
+            logger.debug('  Location: (%f, %f, %f)', *j.location)
+            logger.debug('  Rotation: (%f, %f, %f)', *j.rotation)
+            logger.debug('  Location Limit: (%f, %f, %f) - (%f, %f, %f)', *(j.minimum_location + j.maximum_location))
+            logger.debug('  Rotation Limit: (%f, %f, %f) - (%f, %f, %f)', *(j.minimum_rotation + j.maximum_rotation))
+            logger.debug('  Spring: (%f, %f, %f)', *j.spring_constant)
+            logger.debug('  Spring(rotation): (%f, %f, %f)', *j.spring_rotation_constant)
+            logger.debug('')
 
-        logging.info('----- Loaded %d joints.', len(self.joints))
+        logger.info('----- Loaded %d joints.', len(self.joints))
 
     def save(self, fs):
         fs.writeStr(self.name)
@@ -574,7 +574,7 @@ class Model:
         fs.writeStr(self.comment)
         fs.writeStr(self.comment_e)
 
-        logging.info('''exportings pmx model data...
+        logger.info('''exportings pmx model data...
 name: %s
 name(english): %s
 comment:
@@ -583,62 +583,62 @@ comment(english):
 %s
 ''', self.name, self.name_e, self.comment, self.comment_e)
 
-        logging.info('exporting vertices... %d', len(self.vertices))
+        logger.info('exporting vertices... %d', len(self.vertices))
         fs.writeInt(len(self.vertices))
         for i in self.vertices:
             i.save(fs)
-        logging.info('finished exporting vertices.')
+        logger.info('finished exporting vertices.')
 
-        logging.info('exporting faces... %d', len(self.faces))
+        logger.info('exporting faces... %d', len(self.faces))
         fs.writeInt(len(self.faces)*3)
         for f3, f2, f1 in self.faces:
             fs.writeVertexIndex(f1)
             fs.writeVertexIndex(f2)
             fs.writeVertexIndex(f3)
-        logging.info('finished exporting faces.')
+        logger.info('finished exporting faces.')
 
-        logging.info('exporting textures... %d', len(self.textures))
+        logger.info('exporting textures... %d', len(self.textures))
         fs.writeInt(len(self.textures))
         for i in self.textures:
             i.save(fs)
-        logging.info('finished exporting textures.')
+        logger.info('finished exporting textures.')
 
-        logging.info('exporting materials... %d', len(self.materials))
+        logger.info('exporting materials... %d', len(self.materials))
         fs.writeInt(len(self.materials))
         for i in self.materials:
             i.save(fs)
-        logging.info('finished exporting materials.')
+        logger.info('finished exporting materials.')
 
-        logging.info('exporting bones... %d', len(self.bones))
+        logger.info('exporting bones... %d', len(self.bones))
         fs.writeInt(len(self.bones))
         for i in self.bones:
             i.save(fs)
-        logging.info('finished exporting bones.')
+        logger.info('finished exporting bones.')
 
-        logging.info('exporting morphs... %d', len(self.morphs))
+        logger.info('exporting morphs... %d', len(self.morphs))
         fs.writeInt(len(self.morphs))
         for i in self.morphs:
             i.save(fs)
-        logging.info('finished exporting morphs.')
+        logger.info('finished exporting morphs.')
 
-        logging.info('exporting display items... %d', len(self.display))
+        logger.info('exporting display items... %d', len(self.display))
         fs.writeInt(len(self.display))
         for i in self.display:
             i.save(fs)
-        logging.info('finished exporting display items.')
+        logger.info('finished exporting display items.')
 
-        logging.info('exporting rigid bodies... %d', len(self.rigids))
+        logger.info('exporting rigid bodies... %d', len(self.rigids))
         fs.writeInt(len(self.rigids))
         for i in self.rigids:
             i.save(fs)
-        logging.info('finished exporting rigid bodies.')
+        logger.info('finished exporting rigid bodies.')
 
-        logging.info('exporting joints... %d', len(self.joints))
+        logger.info('exporting joints... %d', len(self.joints))
         fs.writeInt(len(self.joints))
         for i in self.joints:
             i.save(fs)
-        logging.info('finished exporting joints.')
-        logging.info('finished exporting the model.')
+        logger.info('finished exporting joints.')
+        logger.info('finished exporting the model.')
 
 
     def __repr__(self):
@@ -803,7 +803,7 @@ class Texture:
         except ValueError:
             relPath = self.path
         relPath = relPath.replace(os.path.sep, '\\') # always save using windows path conventions
-        logging.info('writing to pmx file the relative texture path: %s', relPath)
+        logger.info('writing to pmx file the relative texture path: %s', relPath)
         fs.writeStr(relPath)
 
 class SharedTexture(Texture):
@@ -1170,7 +1170,7 @@ class Morph:
 
         name = fs.readStr()
         name_e = fs.readStr()
-        logging.debug('morph: %s', name)
+        logger.debug('morph: %s', name)
         category = fs.readSignedByte()
         typeIndex = fs.readSignedByte()
         ret = _CLASSES[typeIndex](name, name_e, category, type_index = typeIndex)
@@ -1399,7 +1399,7 @@ class Display:
             else:
                 raise Exception('invalid value.')
             self.data.append((disp_type, index))
-        logging.debug('the number of display elements: %d', len(self.data))
+        logger.debug('the number of display elements: %d', len(self.data))
 
     def save(self, fs):
         fs.writeStr(self.name)
@@ -1595,12 +1595,12 @@ class Joint:
 
 def load(path):
     with FileReadStream(path) as fs:
-        logging.info('****************************************')
-        logging.info(' mmd_tools.pmx module')
-        logging.info('----------------------------------------')
-        logging.info(' Start to load model data form a pmx file')
-        logging.info('            by the mmd_tools.pmx modlue.')
-        logging.info('')
+        logger.info('****************************************')
+        logger.info(' mmd_tools.pmx module')
+        logger.info('----------------------------------------')
+        logger.info(' Start to load model data form a pmx file')
+        logger.info('            by the mmd_tools.pmx modlue.')
+        logger.info('')
         header = Header()
         header.load(fs)
         fs.setHeader(header)
@@ -1608,12 +1608,12 @@ def load(path):
         try:
             model.load(fs)
         except struct.error as e:
-            logging.error(' * Corrupted file: %s', e)
+            logger.error(' * Corrupted file: %s', e)
             #raise
-        logging.info(' Finished loading.')
-        logging.info('----------------------------------------')
-        logging.info(' mmd_tools.pmx module')
-        logging.info('****************************************')
+        logger.info(' Finished loading.')
+        logger.info('----------------------------------------')
+        logger.info(' mmd_tools.pmx module')
+        logger.info('****************************************')
         return model
 
 def save(path, model, add_uv_count=0):

core/mmd/core/pmx/importer.py

@@ -6,6 +6,7 @@
 # MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
 
 import collections
+import math
 import os
 import time
 from typing import TYPE_CHECKING, List, Optional, Dict, Tuple, Set, Callable, Any, Union, FrozenSet, Iterator
@@ -103,7 +104,7 @@ class PMXImporter:
         obj_name = self.__safe_name(bpy.path.display_name(pmxModel.filepath), max_length=54)
         logger.info(f"Creating objects for model: {obj_name}")
         
-        self.__rig = Model.create(pmxModel.name, pmxModel.name_e, self.__scale or 1.0, obj_name)
+        self.__rig = Model.create(pmxModel.name, pmxModel.name_e, self.__scale, obj_name)
         root = self.__rig.rootObject()
         mmd_root: 'MMDRoot' = root.mmd_root
         self.__root = root
@@ -192,7 +193,7 @@ class PMXImporter:
 
         mesh: Mesh = self.__meshObj.data
         mesh.vertices.add(count=vertex_count)
-        mesh.vertices.foreach_set("co", tuple(i for pv in pmx_vertices for i in (Vector(pv.co).xzy * (self.__scale or 1.0))))
+        mesh.vertices.foreach_set("co", tuple(i for pv in pmx_vertices for i in (Vector(pv.co).xzy * self.__scale)))
 
         vertex_group_table = self.__vertexGroupTable
         if not vertex_group_table:
@@ -249,9 +250,9 @@ class PMXImporter:
         
         for i, pv in self.__sdefVertices.items():
             w = pv.weight.weights
-            sdefC.data[i].co = Vector(w.c).xzy * (self.__scale or 1.0)
-            sdefR0.data[i].co = Vector(w.r0).xzy * (self.__scale or 1.0)
-            sdefR1.data[i].co = Vector(w.r1).xzy * (self.__scale or 1.0)
+            sdefC.data[i].co = Vector(w.c).xzy * self.__scale
+            sdefR0.data[i].co = Vector(w.r0).xzy * self.__scale
+            sdefR1.data[i].co = Vector(w.r1).xzy * self.__scale
             
         logger.debug(f"Stored {len(self.__sdefVertices)} SDEF vertices in shape keys")
 
@@ -290,13 +291,13 @@ class PMXImporter:
             # Create bones
             for i in pmx_bones:
                 bone = data.edit_bones.new(name=i.name)
-                loc = _VectorXZY(i.location) * (self.__scale or 1.0)
+                loc = _VectorXZY(i.location) * self.__scale
                 bone.head = loc
                 editBoneTable.append(bone)
                 nameTable.append(bone.name)
 
             # Set parent relationships
-            for i, (b_bone, m_bone) in enumerate(zip(editBoneTable, pmx_bones)):
+            for i, (b_bone, m_bone) in enumerate(zip(editBoneTable, pmx_bones, strict=False)):
                 if m_bone.parent != -1:
                     if i not in dependency_cycle_ik_bones:
                         b_bone.parent = editBoneTable[m_bone.parent]
@@ -304,18 +305,18 @@ class PMXImporter:
                         b_bone.parent = editBoneTable[m_bone.parent].parent
 
             # Set tail positions
-            for b_bone, m_bone in zip(editBoneTable, pmx_bones):
+            for b_bone, m_bone in zip(editBoneTable, pmx_bones, strict=False):
                 if isinstance(m_bone.displayConnection, int):
                     if m_bone.displayConnection != -1:
                         b_bone.tail = editBoneTable[m_bone.displayConnection].head
                     else:
                         b_bone.tail = b_bone.head
                 else:
-                    loc = _VectorXZY(m_bone.displayConnection) * (self.__scale or 1.0)
+                    loc = _VectorXZY(m_bone.displayConnection) * self.__scale
                     b_bone.tail = b_bone.head + loc
 
             # Check and fix IK links
-            for b_bone, m_bone in zip(editBoneTable, pmx_bones):
+            for b_bone, m_bone in zip(editBoneTable, pmx_bones, strict=False):
                 if m_bone.isIK and m_bone.target != -1:
                     logger.debug(f"Checking IK links of {b_bone.name}")
                     b_target = editBoneTable[m_bone.target]
@@ -333,30 +334,30 @@ class PMXImporter:
                                 b_bone_link.tail = b_bone_link.head + loc
 
             # Fix too short bones
-            for b_bone, m_bone in zip(editBoneTable, pmx_bones):
+            for b_bone, m_bone in zip(editBoneTable, pmx_bones, strict=False):
                 # Set the length of too short bones to 1 because Blender delete them.
                 if b_bone.length < 0.001:
                     if not self.__apply_bone_fixed_axis and m_bone.axis is not None:
                         fixed_axis = Vector(m_bone.axis)
                         if fixed_axis.length:
-                            b_bone.tail = b_bone.head + fixed_axis.xzy.normalized() * (self.__scale or 1.0)
+                            b_bone.tail = b_bone.head + fixed_axis.xzy.normalized() * self.__scale
                         else:
-                            b_bone.tail = b_bone.head + Vector((0, 0, 1)) * (self.__scale or 1.0)
+                            b_bone.tail = b_bone.head + Vector((0, 0, 1)) * self.__scale
                     else:
-                        b_bone.tail = b_bone.head + Vector((0, 0, 1)) * (self.__scale or 1.0)
+                        b_bone.tail = b_bone.head + Vector((0, 0, 1)) * self.__scale
                     if m_bone.displayConnection != -1 and m_bone.displayConnection != [0.0, 0.0, 0.0]:
                         logger.debug(f"Special tip bone {b_bone.name}, display {str(m_bone.displayConnection)}")
                         specialTipBones.append(b_bone.name)
 
             # Update bone roll
-            for b_bone, m_bone in zip(editBoneTable, pmx_bones):
+            for b_bone, m_bone in zip(editBoneTable, pmx_bones, strict=False):
                 if m_bone.localCoordinate is not None:
                     FnBone.update_bone_roll(b_bone, m_bone.localCoordinate.x_axis, m_bone.localCoordinate.z_axis)
                 elif FnBone.has_auto_local_axis(m_bone.name):
                     FnBone.update_auto_bone_roll(b_bone)
 
             # Set bone connections
-            for b_bone, m_bone in zip(editBoneTable, pmx_bones):
+            for b_bone, m_bone in zip(editBoneTable, pmx_bones, strict=False):
                 if isinstance(m_bone.displayConnection, int) and m_bone.displayConnection >= 0:
                     t = editBoneTable[m_bone.displayConnection]
                     if t.parent is None or t.parent != b_bone:
@@ -534,7 +535,8 @@ class PMXImporter:
             elif b_bone.name in specialTipBones:
                 mmd_bone.is_tip = True
 
-            b_bone.bone.hide = not pmx_bone.visible  # or mmd_bone.is_tip
+            # Blender 5.0: use pose bone hide for Pose/Object mode visibility
+            b_bone.hide = not pmx_bone.visible  # or mmd_bone.is_tip
 
             if not pmx_bone.isRotatable:
                 b_bone.lock_rotation = [True, True, True]
@@ -589,7 +591,7 @@ class PMXImporter:
         )
         
         for i, (rigid, rigid_obj) in enumerate(zip(self.__model.rigids, rigid_pool)):
-            loc = Vector(rigid.location).xzy * (self.__scale or 1.0)
+            loc = Vector(rigid.location).xzy * self.__scale
             rot = Vector(rigid.rotation).xzy * -1
             size = Vector(rigid.size).xzy if rigid.type == pmx.Rigid.TYPE_BOX else Vector(rigid.size)
 
@@ -598,7 +600,7 @@ class PMXImporter:
                 shape_type=rigid.type,
                 location=loc,
                 rotation=rot,
-                size=size * (self.__scale or 1.0),
+                size=size * self.__scale,
                 dynamics_type=rigid.mode,
                 name=rigid.name,
                 name_e=rigid.name_e,
@@ -636,7 +638,7 @@ class PMXImporter:
         )
         
         for i, (joint, joint_obj) in enumerate(zip(self.__model.joints, joint_pool)):
-            loc = Vector(joint.location).xzy * (self.__scale or 1.0)
+            loc = Vector(joint.location).xzy * self.__scale
             rot = Vector(joint.rotation).xzy * -1
 
             obj = FnRigidBody.setup_joint_object(
@@ -647,8 +649,8 @@ class PMXImporter:
                 rotation=rot,
                 rigid_a=self.__rigidTable.get(joint.src_rigid, None),
                 rigid_b=self.__rigidTable.get(joint.dest_rigid, None),
-                maximum_location=Vector(joint.maximum_location).xzy * (self.__scale or 1.0),
-                minimum_location=Vector(joint.minimum_location).xzy * (self.__scale or 1.0),
+                maximum_location=Vector(joint.maximum_location).xzy * self.__scale,
+                minimum_location=Vector(joint.minimum_location).xzy * self.__scale,
                 maximum_rotation=Vector(joint.minimum_rotation).xzy * -1,
                 minimum_rotation=Vector(joint.maximum_rotation).xzy * -1,
                 spring_linear=Vector(joint.spring_constant).xzy,
@@ -752,7 +754,7 @@ class PMXImporter:
         uv_layer.data.foreach_set("uv", tuple(v for i in loop_indices_orig for v in uv_table[i]))
 
         if hasattr(mesh, "uv_textures"):
-            for bf, mi in zip(uv_tex.data, material_indices):
+            for bf, mi in zip(uv_tex.data, material_indices, strict=False):
                 bf.image = self.__imageTable.get(mi, None)
 
         if pmxModel.header and pmxModel.header.additional_uvs:
@@ -829,14 +831,18 @@ class PMXImporter:
         logger.debug(f"Found {len(vertex_morphs)} vertex morphs")
         
         for morph in vertex_morphs:
-            shapeKey = self.__meshObj.shape_key_add(name=morph.name)
+            shapeKey = self.__meshObj.shape_key_add(name=morph.name, from_mix=False)
+            shapeKey.value = 0.0  # Set shape key value to 0 (inactive) on import
             vtx_morph = mmd_root.vertex_morphs.add()
             vtx_morph.name = morph.name
             vtx_morph.name_e = morph.name_e
             vtx_morph.category = categories.get(morph.category, "OTHER")
             for md in morph.offsets:
+                if md.index < len(shapeKey.data):
                     shapeKeyPoint = shapeKey.data[md.index]
-                shapeKeyPoint.co += Vector(md.offset).xzy * (self.__scale or 1.0)
+                    shapeKeyPoint.co += Vector(md.offset).xzy * self.__scale
+                else:
+                    logger.warning(f"Morph {morph.name} has out-of-range vertex index: {md.index}")
             logger.debug(f"Imported vertex morph: {morph.name} with {len(morph.offsets)} offsets")
 
     def __importMaterialMorphs(self) -> None:
@@ -897,7 +903,7 @@ class PMXImporter:
                 data = bone_morph.data.add()
                 bl_bone = self.__boneTable[morph_data.index]
                 data.bone = bl_bone.name
-                converter = BoneConverter(bl_bone, self.__scale or 1.0)
+                converter = BoneConverter(bl_bone, self.__scale)
                 data.location = converter.convert_location(morph_data.location_offset)
                 data.rotation = converter.convert_rotation(morph_data.rotation_offset)
                 valid_offsets += 1
@@ -1000,12 +1006,19 @@ class PMXImporter:
         armModifier = meshObj.modifiers.new(name="Armature", type="ARMATURE")
         armModifier.object = armObj
         armModifier.use_vertex_groups = True
-        armModifier.name = "mmd_bone_order_override"
-        armModifier.show_render = armModifier.show_viewport = len(meshObj.data.vertices) > 0
+        armModifier.name = "mmd_armature"
         logger.debug("Armature modifier added")
 
     def __assignCustomNormals(self) -> None:
         """Assign custom normals to the mesh"""
+        # NOTE: This uses the older Blender API instead of the newer mesh.attributes approach
+        # because it requires "INT16_2D" format for proper functionality.
+        # Manual calculation of normals in INT16_2D format is overly complex.
+        # The newer implementation was removed in commit [ad47b9a] due to these issues.
+        # The current implementation uses normals_split_custom_set() with 179-degree sharp edge
+        # marking as a workaround. While not ideal, this remains the most practical solution
+        # for preserving custom normals in most cases.
+        
         if not self.__meshObj or not self.__model:
             logger.error("Mesh object or model not created")
             return
@@ -1013,17 +1026,41 @@ class PMXImporter:
         mesh: Mesh = self.__meshObj.data
         logger.info("Setting custom normals...")
         
+        # CRITICAL: Mark sharp edges (based on angle) BEFORE setting custom normals
+        # For mesh.normals_split_custom_set() to work as expected, two conditions must be met:
+        # 1. The normal vectors must be non-zero (mentioned in Blender documentation)
+        # 2. Some edges must be marked as sharp (NOT mentioned in Blender documentation)
+        # An angle of 179 degrees is confirmed to be sufficient to preserve all custom normals.
+        # 180 degrees does not work because it misses some sharp edges required for normals_split_custom_set to work 100% correctly.
+        current_mode = bpy.context.active_object.mode if bpy.context.active_object else 'OBJECT'
+        bpy.ops.object.mode_set(mode="OBJECT")
+        bpy.ops.object.select_all(action="DESELECT")
+        bpy.context.view_layer.objects.active = self.__meshObj
+        
+        # Mark sharp edges
+        bpy.ops.object.mode_set(mode="EDIT")
+        bpy.ops.mesh.select_all(action="DESELECT")
+        bpy.ops.mesh.edges_select_sharp(sharpness=math.radians(179))
+        bpy.ops.mesh.mark_sharp()
+        bpy.ops.object.mode_set(mode="OBJECT")
+        
+        # Logging
+        total_edges = len(mesh.edges)
+        sharp_edges = sum(1 for edge in mesh.edges if edge.use_edge_sharp)
+        percentage = (sharp_edges / total_edges) * 100 if total_edges > 0 else 0
+        logger.info(f"   - Marked {sharp_edges}/{total_edges} ({percentage:.2f}%) sharp edges with angle: 179 degrees")
+        
         if self.__vertex_map:
             verts, faces = self.__model.vertices, self.__model.faces
             custom_normals = [(Vector(verts[i].normal).xzy).normalized() for f in faces for i in f]
             mesh.normals_split_custom_set(custom_normals)
-            logger.debug(f"Set {len(custom_normals)} custom normals using face data")
         else:
             custom_normals = [(Vector(v.normal).xzy).normalized() for v in self.__model.vertices]
             mesh.normals_split_custom_set_from_vertices(custom_normals)
-            logger.debug(f"Set {len(custom_normals)} custom normals from vertices")
             
-        logger.info("Custom normals set successfully")
+        bpy.ops.object.mode_set(mode=current_mode)
+        logger.info("   - Done!!")
+            # Continue without custom normals - mesh will use auto-calculated normals
 
     def __renameLRBones(self, use_underscore: bool) -> None:
         """Rename bones with left/right naming convention"""

core/mmd/core/rigid_body.py

@@ -1,17 +1,13 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
-from typing import List, Optional, Tuple, Union, Dict, Any, Set, cast
+from ....core.logging_setup import logger
+from typing import List, Optional
 
 import bpy
-from mathutils import Euler, Vector, Matrix
+from mathutils import Euler, Vector
 
 from ..bpyutils import FnContext, Props
-from ....core.logging_setup import logger
 
 SHAPE_SPHERE = 0
 SHAPE_BOX = 1
@@ -22,30 +18,25 @@ MODE_DYNAMIC = 1
 MODE_DYNAMIC_BONE = 2
 
 
-def shapeType(collision_shape: str) -> int:
-    """Convert collision shape name to type index"""
+def shapeType(collision_shape):
     return ("SPHERE", "BOX", "CAPSULE").index(collision_shape)
 
 
-def collisionShape(shape_type: int) -> str:
-    """Convert shape type index to collision shape name"""
+def collisionShape(shape_type):
     return ("SPHERE", "BOX", "CAPSULE")[shape_type]
 
 
-def setRigidBodyWorldEnabled(enable: bool) -> bool:
-    """Enable or disable the rigid body world and return previous state"""
+def setRigidBodyWorldEnabled(enable):
     if bpy.ops.rigidbody.world_add.poll():
-        logger.debug("Creating rigid body world")
         bpy.ops.rigidbody.world_add()
     rigidbody_world = bpy.context.scene.rigidbody_world
     enabled = rigidbody_world.enabled
     rigidbody_world.enabled = enable
-    logger.debug(f"Rigid body world enabled: {enable} (was: {enabled})")
     return enabled
 
 
 class RigidBodyMaterial:
-    COLORS: List[int] = [
+    COLORS = [
         0x7FDDD4,
         0xF0E68C,
         0xEE82EE,
@@ -65,12 +56,10 @@ class RigidBodyMaterial:
     ]
 
     @classmethod
-    def getMaterial(cls, number: int) -> bpy.types.Material:
-        """Get or create a material for rigid bodies with the specified number"""
+    def getMaterial(cls, number):
         number = int(number)
-        material_name = f"mmd_tools_rigid_{number}"
+        material_name = "mmd_tools_rigid_%d" % (number)
         if material_name not in bpy.data.materials:
-            logger.debug(f"Creating rigid body material: {material_name}")
             mat = bpy.data.materials.new(material_name)
             color = cls.COLORS[number]
             mat.diffuse_color[:3] = [((0xFF0000 & color) >> 16) / float(255), ((0x00FF00 & color) >> 8) / float(255), (0x0000FF & color) / float(255)]
@@ -97,11 +86,9 @@ class RigidBodyMaterial:
 class FnRigidBody:
     @staticmethod
     def new_rigid_body_objects(context: bpy.types.Context, parent_object: bpy.types.Object, count: int) -> List[bpy.types.Object]:
-        """Create multiple rigid body objects parented to the specified object"""
         if count < 1:
             return []
 
-        logger.debug(f"Creating {count} rigid body objects parented to {parent_object.name}")
         obj = FnRigidBody.new_rigid_body_object(context, parent_object)
 
         if count == 1:
@@ -111,8 +98,6 @@ class FnRigidBody:
 
     @staticmethod
     def new_rigid_body_object(context: bpy.types.Context, parent_object: bpy.types.Object) -> bpy.types.Object:
-        """Create a new rigid body object parented to the specified object"""
-        logger.debug(f"Creating new rigid body object parented to {parent_object.name}")
         obj = FnContext.new_and_link_object(context, name="Rigidbody", object_data=bpy.data.meshes.new(name="Rigidbody"))
         obj.parent = parent_object
         obj.mmd_type = "RIGID_BODY"
@@ -130,11 +115,11 @@ class FnRigidBody:
     @staticmethod
     def setup_rigid_body_object(
         obj: bpy.types.Object,
-        shape_type: int,
+        shape_type: str,
         location: Vector,
         rotation: Euler,
         size: Vector,
-        dynamics_type: int,
+        dynamics_type: str,
         collision_group_number: Optional[int] = None,
         collision_group_mask: Optional[List[bool]] = None,
         name: Optional[str] = None,
@@ -146,8 +131,6 @@ class FnRigidBody:
         linear_damping: Optional[float] = None,
         bounce: Optional[float] = None,
     ) -> bpy.types.Object:
-        """Set up a rigid body object with the specified parameters"""
-        logger.debug(f"Setting up rigid body object: {obj.name}")
         obj.location = location
         obj.rotation_euler = rotation
 
@@ -189,35 +172,31 @@ class FnRigidBody:
         return obj
 
     @staticmethod
-    def get_rigid_body_size(obj: bpy.types.Object) -> Tuple[float, float, float]:
-        """Get the size of a rigid body object based on its shape type"""
+    def get_rigid_body_size(obj: bpy.types.Object):
         assert obj.mmd_type == "RIGID_BODY"
 
         x0, y0, z0 = obj.bound_box[0]
         x1, y1, z1 = obj.bound_box[6]
-        assert x1 >= x0 and y1 >= y0 and z1 >= z0
+        if not (x1 >= x0 and y1 >= y0 and z1 >= z0):
+            logger.warning(f"Rigid body '{obj.name}' has invalid bounding box coordinates, using default size")
+            return (1.0, 1.0, 1.0)
 
         shape = obj.mmd_rigid.shape
         if shape == "SPHERE":
             radius = (z1 - z0) / 2
             return (radius, 0.0, 0.0)
-        elif shape == "BOX":
+        if shape == "BOX":
             x, y, z = (x1 - x0) / 2, (y1 - y0) / 2, (z1 - z0) / 2
             return (x, y, z)
-        elif shape == "CAPSULE":
+        if shape == "CAPSULE":
             diameter = x1 - x0
             radius = diameter / 2
             height = abs((z1 - z0) - diameter)
             return (radius, height, 0.0)
-        else:
-            error_msg = f"Invalid shape type: {shape}"
-            logger.error(error_msg)
-            raise ValueError(error_msg)
+        raise ValueError(f"Invalid shape type: {shape}")
 
     @staticmethod
     def new_joint_object(context: bpy.types.Context, parent_object: bpy.types.Object, empty_display_size: float) -> bpy.types.Object:
-        """Create a new joint object parented to the specified object"""
-        logger.debug(f"Creating new joint object parented to {parent_object.name}")
         obj = FnContext.new_and_link_object(context, name="Joint", object_data=None)
         obj.parent = parent_object
         obj.mmd_type = "JOINT"
@@ -249,11 +228,9 @@ class FnRigidBody:
 
     @staticmethod
     def new_joint_objects(context: bpy.types.Context, parent_object: bpy.types.Object, count: int, empty_display_size: float) -> List[bpy.types.Object]:
-        """Create multiple joint objects parented to the specified object"""
         if count < 1:
             return []
 
-        logger.debug(f"Creating {count} joint objects parented to {parent_object.name}")
         obj = FnRigidBody.new_joint_object(context, parent_object, empty_display_size)
 
         if count == 1:
@@ -277,8 +254,6 @@ class FnRigidBody:
         name: str,
         name_e: Optional[str] = None,
     ) -> bpy.types.Object:
-        """Set up a joint object with the specified parameters"""
-        logger.debug(f"Setting up joint object: {obj.name} with name {name}")
         obj.name = f"J.{name}"
 
         obj.location = location

core/mmd/core/sdef.py

@@ -1,52 +1,42 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2018 MMD Tools authors
+# This file is part of MMD Tools.
 
-import logging
+from ....core.logging_setup import logger
 import time
-from typing import Dict, List, Tuple, Set, Optional, Any, Union, cast, TypeVar, Callable
 
 import bpy
 import numpy as np
-from mathutils import Matrix, Vector, Quaternion, Euler
-from bpy.types import Object, PoseBone, Pose, ShapeKey, Modifier, VertexGroup
+from mathutils import Matrix, Vector
 
 from ..bpyutils import FnObject
-from ....core.logging_setup import logger
 
-T = TypeVar('T')
 
-def _hash(v: Union[Object, PoseBone, Pose]) -> int:
+def _hash(v):
     if isinstance(v, (bpy.types.Object, bpy.types.PoseBone)):
         return hash(type(v).__name__ + v.name)
-    elif isinstance(v, bpy.types.Pose):
+    if isinstance(v, bpy.types.Pose):
         return hash(type(v).__name__ + v.id_data.name)
-    else:
     raise NotImplementedError("hash")
 
 
 class FnSDEF:
-    g_verts: Dict[int, Dict[Tuple[int, int], Tuple[PoseBone, PoseBone, List[Tuple[int, float, float, Vector, Vector, Vector]], List[int]]]] = {}  # global cache
-    g_shapekey_data: Dict[int, Optional[np.ndarray]] = {}
-    g_bone_check: Dict[int, Dict[Union[Tuple[int, int], str], Union[Tuple[Matrix, Matrix], bool]]] = {}
-    __g_armature_check: Dict[int, Optional[int]] = {}
-    SHAPEKEY_NAME: str = "mmd_sdef_skinning"
-    MASK_NAME: str = "mmd_sdef_mask"
+    g_verts = {}  # global cache
+    g_shapekey_data = {}
+    g_bone_check = {}
+    __g_armature_check = {}
+    SHAPEKEY_NAME = "mmd_sdef_skinning"
+    MASK_NAME = "mmd_sdef_mask"
 
-    def __init__(self) -> None:
+    def __init__(self):
         raise NotImplementedError("not allowed")
 
     @classmethod
-    def __init_cache(cls, obj: Object, shapekey: ShapeKey) -> bool:
+    def __init_cache(cls, obj, shapekey):
         key = _hash(obj)
         obj = getattr(obj, "original", obj)
-        mod = obj.modifiers.get("mmd_bone_order_override")
+        mod = obj.modifiers.get("mmd_armature")
         key_armature = _hash(mod.object.pose) if mod and mod.type == "ARMATURE" and mod.object else None
         if key not in cls.g_verts or cls.__g_armature_check.get(key) != key_armature:
-            logger.debug(f"Initializing SDEF cache for {obj.name}")
             cls.g_verts[key] = cls.__find_vertices(obj)
             cls.g_bone_check[key] = {}
             cls.__g_armature_check[key] = key_armature
@@ -55,7 +45,7 @@ class FnSDEF:
         return False
 
     @classmethod
-    def __check_bone_update(cls, obj: Object, bone0: PoseBone, bone1: PoseBone) -> bool:
+    def __check_bone_update(cls, obj, bone0, bone1):
         check = cls.g_bone_check[_hash(obj)]
         key = (_hash(bone0), _hash(bone1))
         if key not in check or (bone0.matrix, bone1.matrix) != check[key]:
@@ -64,21 +54,20 @@ class FnSDEF:
         return False
 
     @classmethod
-    def mute_sdef_set(cls, obj: Object, mute: bool) -> None:
+    def mute_sdef_set(cls, obj, mute):
         key_blocks = getattr(obj.data.shape_keys, "key_blocks", ())
         if cls.SHAPEKEY_NAME in key_blocks:
             shapekey = key_blocks[cls.SHAPEKEY_NAME]
             shapekey.mute = mute
             if cls.has_sdef_data(obj):
-                logger.debug(f"Setting SDEF mute state to {mute} for {obj.name}")
                 cls.__init_cache(obj, shapekey)
                 cls.__sdef_muted(obj, shapekey)
 
     @classmethod
-    def __sdef_muted(cls, obj: Object, shapekey: ShapeKey) -> bool:
+    def __sdef_muted(cls, obj, shapekey):
         mute = shapekey.mute
         if mute != cls.g_bone_check[_hash(obj)].get("sdef_mute"):
-            mod = obj.modifiers.get("mmd_bone_order_override")
+            mod = obj.modifiers.get("mmd_armature")
             if mod and mod.type == "ARMATURE":
                 if not mute and cls.MASK_NAME not in obj.vertex_groups and obj.mode != "EDIT":
                     mask = tuple(i for v in cls.g_verts[_hash(obj)].values() for i in v[3])
@@ -87,33 +76,32 @@ class FnSDEF:
                 mod.invert_vertex_group = True
                 shapekey.vertex_group = cls.MASK_NAME
             cls.g_bone_check[_hash(obj)]["sdef_mute"] = mute
-            logger.debug(f"SDEF mute state updated to {mute} for {obj.name}")
         return mute
 
     @staticmethod
-    def has_sdef_data(obj: Object) -> bool:
-        mod = obj.modifiers.get("mmd_bone_order_override")
+    def has_sdef_data(obj):
+        if obj is None or not hasattr(obj, "modifiers") or not hasattr(obj, "data") or obj.data is None:
+            return False
+        mod = obj.modifiers.get("mmd_armature")
         if mod and mod.type == "ARMATURE" and mod.object:
             kb = getattr(obj.data.shape_keys, "key_blocks", None)
             return kb and "mmd_sdef_c" in kb and "mmd_sdef_r0" in kb and "mmd_sdef_r1" in kb
         return False
 
     @classmethod
-    def __find_vertices(cls, obj: Object) -> Dict[Tuple[int, int], Tuple[PoseBone, PoseBone, List[Tuple[int, float, float, Vector, Vector, Vector]], List[int]]]:
+    def __find_vertices(cls, obj):
         if not cls.has_sdef_data(obj):
+            logger.debug(f"SDEF vertex search skipped for '{obj.name}': No SDEF data found")
             return {}
 
-        vertices: Dict[Tuple[int, int], Tuple[PoseBone, PoseBone, List[Tuple[int, float, float, Vector, Vector, Vector]], List[int]]] = {}
-        pose_bones = obj.modifiers.get("mmd_bone_order_override").object.pose.bones
-        bone_map: Dict[int, PoseBone] = {g.index: pose_bones[g.name] for g in obj.vertex_groups if g.name in pose_bones}
+        vertices = {}
+        pose_bones = obj.modifiers.get("mmd_armature").object.pose.bones
+        bone_map = {g.index: pose_bones[g.name] for g in obj.vertex_groups if g.name in pose_bones}
         sdef_c = obj.data.shape_keys.key_blocks["mmd_sdef_c"].data
         sdef_r0 = obj.data.shape_keys.key_blocks["mmd_sdef_r0"].data
         sdef_r1 = obj.data.shape_keys.key_blocks["mmd_sdef_r1"].data
         vd = obj.data.vertices
 
-        logger.debug(f"Finding SDEF vertices for {obj.name}")
-        vertex_count = 0
-
         for i in range(len(sdef_c)):
             if vd[i].co != sdef_c[i].co:
                 bgs = [g for g in vd[i].groups if g.group in bone_map and g.weight]  # bone groups
@@ -122,7 +110,7 @@ class FnSDEF:
                     # preprocessing
                     w0, w1 = bgs[0].weight, bgs[1].weight
                     # w0 + w1 == 1
-                    w0 = w0 / (w0 + w1)
+                    w0 /= (w0 + w1)
                     w1 = 1 - w0
 
                     c, r0, r1 = sdef_c[i].co, sdef_r0[i].co, sdef_r1[i].co
@@ -136,19 +124,22 @@ class FnSDEF:
                         vertices[key] = (bone_map[bgs[0].group], bone_map[bgs[1].group], [], [])
                     vertices[key][2].append((i, w0, w1, vd[i].co - c, (c + r0) / 2, (c + r1) / 2))
                     vertices[key][3].append(i)
-                    vertex_count += 1
-
-        logger.debug(f"Found {vertex_count} SDEF vertices in {obj.name}")
         return vertices
 
     @classmethod
-    def driver_function_wrap(cls, obj_name: str, bulk_update: bool, use_skip: bool, use_scale: bool) -> float:
+    def driver_function_wrap(cls, obj_name, bulk_update, use_skip, use_scale):
+        if obj_name not in bpy.data.objects:
+            logger.warning(f"SDEF driver wrap: Object '{obj_name}' not found")
+            return 0.0
         obj = bpy.data.objects[obj_name]
         shapekey = obj.data.shape_keys.key_blocks[cls.SHAPEKEY_NAME]
         return cls.driver_function(shapekey, obj_name, bulk_update, use_skip, use_scale)
 
     @classmethod
-    def driver_function(cls, shapekey: ShapeKey, obj_name: str, bulk_update: bool, use_skip: bool, use_scale: bool) -> float:
+    def driver_function(cls, shapekey, obj_name, bulk_update, use_skip, use_scale):
+        if obj_name not in bpy.data.objects:
+            logger.warning(f"SDEF driver: Object '{obj_name}' not found, driver will be inactive")
+            return 0.0
         obj = bpy.data.objects[obj_name]
         if getattr(shapekey.id_data, "is_evaluated", False):
             # For Blender 2.8x, we should use evaluated object, and the only reference is the "obj" variable of SDEF driver
@@ -159,7 +150,7 @@ class FnSDEF:
         if cls.__sdef_muted(obj, shapekey):
             return 0.0
 
-        pose_bones = obj.modifiers.get("mmd_bone_order_override").object.pose.bones
+        pose_bones = obj.modifiers.get("mmd_armature").object.pose.bones
         if not bulk_update:
             shapekey_data = shapekey.data
             if use_scale:
@@ -200,8 +191,6 @@ class FnSDEF:
         else:  # bulk update
             shapekey_data = cls.g_shapekey_data[_hash(obj)]
             if shapekey_data is None:
-                import numpy as np
-
                 shapekey_data = np.zeros(len(shapekey.data) * 3, dtype=np.float32)
                 shapekey.data.foreach_get("co", shapekey_data)
                 shapekey_data = cls.g_shapekey_data[_hash(obj)] = shapekey_data.reshape(len(shapekey.data), 3)
@@ -220,15 +209,15 @@ class FnSDEF:
                         rot1 = -rot1
                     s0, s1 = mat0.to_scale(), mat1.to_scale()
 
-                    def scale(mat_rot: Matrix, w0: float, w1: float) -> Matrix:
+                    def scale(mat_rot, w0, w1, s0, s1):
                         s = s0 * w0 + s1 * w1
                         return mat_rot @ Matrix([(s[0], 0, 0), (0, s[1], 0), (0, 0, s[2])])
 
-                    def offset(mat_rot: Matrix, pos_c: Vector, vid: int) -> Vector:
+                    def offset(mat_rot, pos_c, vid):
                         delta = sum(((key.data[vid].co - key.relative_key.data[vid].co) * key.value for key in key_blocks), Vector())  # assuming key.vertex_group = ''
                         return (mat_rot @ (pos_c + delta)) - delta
 
-                    shapekey_data[vids] = [offset(scale((rot0 * w0 + rot1 * w1).normalized().to_matrix(), w0, w1), pos_c, vid) + (mat0 @ cr0) * w0 + (mat1 @ cr1) * w1 for vid, w0, w1, pos_c, cr0, cr1 in sdef_data]
+                    shapekey_data[vids] = [offset(scale((rot0 * w0 + rot1 * w1).normalized().to_matrix(), w0, w1, s0, s1), pos_c, vid) + (mat0 @ cr0) * w0 + (mat1 @ cr1) * w1 for vid, w0, w1, pos_c, cr0, cr1 in sdef_data]
             else:
                 # bulk update
                 for bone0, bone1, sdef_data, vids in cls.g_verts[_hash(obj)].values():
@@ -247,19 +236,16 @@ class FnSDEF:
         return 1.0  # shapkey value
 
     @classmethod
-    def register_driver_function(cls) -> None:
-        """Register driver functions in Blender's driver namespace."""
+    def register_driver_function(cls):
         if "mmd_sdef_driver" not in bpy.app.driver_namespace:
-            logger.debug("Registering SDEF driver function")
             bpy.app.driver_namespace["mmd_sdef_driver"] = cls.driver_function
         if "mmd_sdef_driver_wrap" not in bpy.app.driver_namespace:
-            logger.debug("Registering SDEF driver wrapper function")
             bpy.app.driver_namespace["mmd_sdef_driver_wrap"] = cls.driver_function_wrap
 
-    BENCH_LOOP: int = 10
+    BENCH_LOOP = 10
 
     @classmethod
-    def __get_benchmark_result(cls, obj: Object, shapkey: ShapeKey, use_scale: bool, use_skip: bool) -> bool:
+    def __get_benchmark_result(cls, obj, shapkey, use_scale, use_skip):
         # warmed up
         cls.driver_function(shapkey, obj.name, bulk_update=True, use_skip=False, use_scale=use_scale)
         cls.driver_function(shapkey, obj.name, bulk_update=False, use_skip=False, use_scale=use_scale)
@@ -273,15 +259,15 @@ class FnSDEF:
             cls.driver_function(shapkey, obj.name, bulk_update=True, use_skip=False, use_scale=use_scale)
         bulk_time = time.time() - t
         result = default_time > bulk_time
-        logger.info(f"SDEF benchmark for {obj.name}: default {default_time:.4f}s vs bulk_update {bulk_time:.4f}s => bulk_update={result}")
+        logger.info("FnSDEF:benchmark: default %.4f vs bulk_update %.4f => bulk_update=%s", default_time, bulk_time, result)
         return result
 
     @classmethod
-    def bind(cls, obj: Object, bulk_update: Optional[bool] = None, use_skip: bool = True, use_scale: bool = False) -> bool:
+    def bind(cls, obj, bulk_update=None, use_skip=True, use_scale=False):
         # Unbind first
         cls.unbind(obj)
         if not cls.has_sdef_data(obj):
-            logger.debug(f"Object {obj.name} does not have SDEF data")
+            logger.debug(f"SDEF bind skipped for '{obj.name}': No SDEF data found")
             return False
         # Create the shapekey for the driver
         shapekey = obj.shape_key_add(name=cls.SHAPEKEY_NAME, from_mix=False)
@@ -300,50 +286,41 @@ class FnSDEF:
         ov.type = "SINGLE_PROP"
         ov.targets[0].id = obj
         ov.targets[0].data_path = "name"
-        if not bulk_update and use_skip:  # FIXME: force disable use_skip=True for bulk_update=False on 2.8
-            use_skip = False
-        mod = obj.modifiers.get("mmd_bone_order_override")
+        mod = obj.modifiers.get("mmd_armature")
         variables = f.driver.variables
-        for name in set(data[i].name for data in cls.g_verts[_hash(obj)].values() for i in range(2)):  # add required bones for dependency graph
+        for name in {data[i].name for data in cls.g_verts[_hash(obj)].values() for i in range(2)}:  # add required bones for dependency graph
             var = variables.new()
             var.type = "TRANSFORMS"
             var.targets[0].id = mod.object
             var.targets[0].bone_target = name
         f.driver.use_self = True
-        param = (bulk_update, use_skip, use_scale)
-        f.driver.expression = "mmd_sdef_driver(self, obj, bulk_update={}, use_skip={}, use_scale={})".format(*param)
-        logger.info(f"Successfully bound SDEF to {obj.name} with bulk_update={bulk_update}, use_skip={use_skip}, use_scale={use_scale}")
+        f.driver.expression = f"mmd_sdef_driver(self, obj, bulk_update={bulk_update}, use_skip={use_skip}, use_scale={use_scale})"
         return True
 
     @classmethod
-    def unbind(cls, obj: Object) -> None:
+    def unbind(cls, obj):
         if obj.data.shape_keys:
             if cls.SHAPEKEY_NAME in obj.data.shape_keys.key_blocks:
-                logger.debug(f"Removing SDEF shape key from {obj.name}")
                 FnObject.mesh_remove_shape_key(obj, obj.data.shape_keys.key_blocks[cls.SHAPEKEY_NAME])
         for mod in obj.modifiers:
             if mod.type == "ARMATURE" and mod.vertex_group == cls.MASK_NAME:
-                logger.debug(f"Clearing SDEF vertex group from modifier in {obj.name}")
                 mod.vertex_group = ""
                 mod.invert_vertex_group = False
                 break
         if cls.MASK_NAME in obj.vertex_groups:
-            logger.debug(f"Removing SDEF vertex group from {obj.name}")
             obj.vertex_groups.remove(obj.vertex_groups[cls.MASK_NAME])
         cls.clear_cache(obj)
 
     @classmethod
-    def clear_cache(cls, obj: Optional[Object] = None, unused_only: bool = False) -> None:
+    def clear_cache(cls, obj=None, unused_only=False):
         if unused_only:
-            valid_keys = set(_hash(i) for i in bpy.data.objects if i.type == "MESH" and i != obj)
-            removed_keys = cls.g_verts.keys() - valid_keys
-            for key in removed_keys:
+            valid_keys = {_hash(i) for i in bpy.data.objects if i.type == "MESH" and i != obj}
+            for key in cls.g_verts.keys() - valid_keys:
                 del cls.g_verts[key]
             for key in cls.g_shapekey_data.keys() - cls.g_verts.keys():
                 del cls.g_shapekey_data[key]
             for key in cls.g_bone_check.keys() - cls.g_verts.keys():
                 del cls.g_bone_check[key]
-            logger.debug(f"Cleared {len(removed_keys)} unused SDEF cache entries")
         elif obj:
             key = _hash(obj)
             if key in cls.g_verts:
@@ -352,9 +329,7 @@ class FnSDEF:
                 del cls.g_shapekey_data[key]
             if key in cls.g_bone_check:
                 del cls.g_bone_check[key]
-            logger.debug(f"Cleared SDEF cache for {obj.name}")
         else:
-            logger.debug("Cleared all SDEF cache")
             cls.g_verts = {}
             cls.g_bone_check = {}
             cls.g_shapekey_data = {}

core/mmd/core/shader.py

@@ -1,37 +1,26 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2019 MMD Tools authors
+# This file is part of MMD Tools.
+
+from typing import Optional, Tuple, cast
 
-from typing import Optional, Tuple, cast, List, Dict, Any, Union
 import bpy
-from bpy.types import (
-    ShaderNodeTree, 
-    ShaderNode, 
-    NodeGroupInput, 
-    NodeGroupOutput, 
-    Material
-)
-from ....core.logging_setup import logger
 
 
 class _NodeTreeUtils:
-    def __init__(self, shader: ShaderNodeTree):
+    def __init__(self, shader: bpy.types.ShaderNodeTree):
         self.shader = shader
-        self.nodes: bpy.types.bpy_prop_collection[ShaderNode] = shader.nodes  # type: ignore
+        self.nodes: bpy.types.bpy_prop_collection[bpy.types.ShaderNode] = shader.nodes  # type: ignore[assignment]
         self.links = shader.links
 
-    def _find_node(self, node_type: str) -> Optional[ShaderNode]:
+    def _find_node(self, node_type: str) -> Optional[bpy.types.ShaderNode]:
         return next((n for n in self.nodes if n.bl_idname == node_type), None)
 
-    def new_node(self, idname: str, pos: Tuple[int, int]) -> ShaderNode:
-        node: ShaderNode = self.nodes.new(idname)
+    def new_node(self, idname: str, pos: Tuple[int, int]) -> bpy.types.ShaderNode:
+        node: bpy.types.ShaderNode = self.nodes.new(idname)
         node.location = (pos[0] * 210, pos[1] * 220)
         return node
 
-    def new_math_node(self, operation: str, pos: Tuple[int, int], value1: Optional[float] = None, value2: Optional[float] = None) -> ShaderNode:
+    def new_math_node(self, operation, pos, value1=None, value2=None):
         node = self.new_node("ShaderNodeMath", pos)
         node.operation = operation
         if value1 is not None:
@@ -40,7 +29,7 @@ class _NodeTreeUtils:
             node.inputs[1].default_value = value2
         return node
 
-    def new_vector_math_node(self, operation: str, pos: Tuple[int, int], vector1: Optional[Tuple[float, float, float, float]] = None, vector2: Optional[Tuple[float, float, float, float]] = None) -> ShaderNode:
+    def new_vector_math_node(self, operation, pos, vector1=None, vector2=None):
         node = self.new_node("ShaderNodeVectorMath", pos)
         node.operation = operation
         if vector1 is not None:
@@ -49,7 +38,7 @@ class _NodeTreeUtils:
             node.inputs[1].default_value = vector2
         return node
 
-    def new_mix_node(self, blend_type: str, pos: Tuple[int, int], fac: Optional[float] = None, color1: Optional[Tuple[float, float, float, float]] = None, color2: Optional[Tuple[float, float, float, float]] = None) -> ShaderNode:
+    def new_mix_node(self, blend_type, pos, fac=None, color1=None, color2=None):
         node = self.new_node("ShaderNodeMixRGB", pos)
         node.blend_type = blend_type
         if fac is not None:
@@ -61,30 +50,30 @@ class _NodeTreeUtils:
         return node
 
 
-SOCKET_TYPE_MAPPING: Dict[str, str] = {"NodeSocketFloatFactor": "NodeSocketFloat"}
+SOCKET_TYPE_MAPPING = {"NodeSocketFloatFactor": "NodeSocketFloat"}
 
-SOCKET_SUBTYPE_MAPPING: Dict[str, str] = {"NodeSocketFloatFactor": "FACTOR"}
+SOCKET_SUBTYPE_MAPPING = {"NodeSocketFloatFactor": "FACTOR"}
 
 
 class _NodeGroupUtils(_NodeTreeUtils):
-    def __init__(self, shader: ShaderNodeTree):
+    def __init__(self, shader: bpy.types.ShaderNodeTree):
         super().__init__(shader)
-        self.__node_input: Optional[NodeGroupInput] = None
-        self.__node_output: Optional[NodeGroupOutput] = None
+        self.__node_input: Optional[bpy.types.NodeGroupInput] = None
+        self.__node_output: Optional[bpy.types.NodeGroupOutput] = None
 
     @property
-    def node_input(self) -> NodeGroupInput:
+    def node_input(self) -> bpy.types.NodeGroupInput:
         if not self.__node_input:
-            self.__node_input = cast(NodeGroupInput, self._find_node("NodeGroupInput") or self.new_node("NodeGroupInput", (-2, 0)))
+            self.__node_input = cast("bpy.types.NodeGroupInput", self._find_node("NodeGroupInput") or self.new_node("NodeGroupInput", (-2, 0)))
         return self.__node_input
 
     @property
-    def node_output(self) -> NodeGroupOutput:
+    def node_output(self) -> bpy.types.NodeGroupOutput:
         if not self.__node_output:
-            self.__node_output = cast(NodeGroupOutput, self._find_node("NodeGroupOutput") or self.new_node("NodeGroupOutput", (2, 0)))
+            self.__node_output = cast("bpy.types.NodeGroupOutput", self._find_node("NodeGroupOutput") or self.new_node("NodeGroupOutput", (2, 0)))
         return self.__node_output
 
-    def hide_nodes(self, hide_sockets: bool = True) -> None:
+    def hide_nodes(self, hide_sockets=True):
         skip_nodes = {self.__node_input, self.__node_output}
         for n in (x for x in self.nodes if x not in skip_nodes):
             n.hide = True
@@ -95,22 +84,22 @@ class _NodeGroupUtils(_NodeTreeUtils):
             for s in n.outputs:
                 s.hide = not s.is_linked
 
-    def new_input_socket(self, io_name: str, socket: Optional[bpy.types.NodeSocket], default_val: Optional[Union[float, Tuple[float, float, float, float]]] = None, min_max: Optional[Tuple[float, float]] = None, socket_type: Optional[str] = None) -> None:
+    def new_input_socket(self, io_name, socket, default_val=None, min_max=None, socket_type=None):
         self.__new_io("INPUT", self.node_input.outputs, io_name, socket, default_val, min_max, socket_type)
 
-    def new_output_socket(self, io_name: str, socket: Optional[bpy.types.NodeSocket], default_val: Optional[Union[float, Tuple[float, float, float, float]]] = None, min_max: Optional[Tuple[float, float]] = None, socket_type: Optional[str] = None) -> None:
+    def new_output_socket(self, io_name, socket, default_val=None, min_max=None, socket_type=None):
         self.__new_io("OUTPUT", self.node_output.inputs, io_name, socket, default_val, min_max, socket_type)
 
-    def __new_io(self, in_out: str, io_sockets: bpy.types.bpy_prop_collection, io_name: str, socket: Optional[bpy.types.NodeSocket], default_val: Optional[Union[float, Tuple[float, float, float, float]]] = None, min_max: Optional[Tuple[float, float]] = None, socket_type: Optional[str] = None) -> None:
+    def __new_io(self, in_out, io_sockets, io_name, socket, default_val=None, min_max=None, socket_type=None):
         if io_name not in io_sockets:
-            idname = socket_type or (socket.bl_idname if socket else "NodeSocketFloat")
+            idname = socket_type or socket.bl_idname
             interface_socket = self.shader.interface.new_socket(name=io_name, in_out=in_out, socket_type=SOCKET_TYPE_MAPPING.get(idname, idname))
             if idname in SOCKET_SUBTYPE_MAPPING:
                 interface_socket.subtype = SOCKET_SUBTYPE_MAPPING.get(idname, "")
             if not min_max:
                 if idname.endswith("Factor") or io_name.endswith("Alpha"):
                     interface_socket.min_value, interface_socket.max_value = 0, 1
-                elif idname.endswith("Float") or idname.endswith("Vector"):
+                elif idname.endswith(("Float", "Vector")):
                     interface_socket.min_value, interface_socket.max_value = -10, 10
         if socket is not None:
             self.links.new(io_sockets[io_name], socket)
@@ -122,18 +111,14 @@ class _NodeGroupUtils(_NodeTreeUtils):
 
 class _MaterialMorph:
     @classmethod
-    def update_morph_inputs(cls, material: Optional[Material], morph: Any) -> None:
-        """Update material morph inputs based on morph data"""
+    def update_morph_inputs(cls, material, morph):
         if material and material.node_tree and morph.name in material.node_tree.nodes:
-            logger.debug(f"Updating morph inputs for {morph.name} in {material.name}")
             cls.__update_node_inputs(material.node_tree.nodes[morph.name], morph)
             cls.update_morph_inputs(bpy.data.materials.get("mmd_edge." + material.name, None), morph)
 
     @classmethod
-    def setup_morph_nodes(cls, material: Material, morphs: List[Any]) -> List[ShaderNode]:
-        """Set up morph nodes for a material"""
+    def setup_morph_nodes(cls, material, morphs):
         node, nodes = None, []
-        logger.debug(f"Setting up {len(morphs)} morph nodes for {material.name}")
         for m in morphs:
             node = cls.__morph_node_add(material, m, node)
             nodes.append(node)
@@ -149,25 +134,23 @@ class _MaterialMorph:
         return nodes
 
     @classmethod
-    def reset_morph_links(cls, node: ShaderNode) -> None:
-        """Reset morph links for a node"""
-        logger.debug(f"Resetting morph links for {node.name}")
+    def reset_morph_links(cls, node):
         cls.__update_morph_links(node, reset=True)
 
     @classmethod
-    def __update_morph_links(cls, node: ShaderNode, reset: bool = False) -> None:
+    def __update_morph_links(cls, node, reset=False):
         nodes, links = node.id_data.nodes, node.id_data.links
         if reset:
-            if any(l.from_node.name.startswith("mmd_bind") for i in node.inputs for l in i.links):
+            if any(link.from_node.name.startswith("mmd_bind") for i in node.inputs for link in i.links):
                 return
 
-            def __init_link(socket_morph: bpy.types.NodeSocket, socket_shader: Optional[bpy.types.NodeSocket]) -> None:
+            def __init_link(socket_morph, socket_shader):
                 if socket_shader and socket_morph.is_linked:
                     links.new(socket_morph.links[0].from_socket, socket_shader)
 
         else:
 
-            def __init_link(socket_morph: bpy.types.NodeSocket, socket_shader: Optional[bpy.types.NodeSocket]) -> None:
+            def __init_link(socket_morph, socket_shader):
                 if socket_shader:
                     if socket_shader.is_linked:
                         links.new(socket_shader.links[0].from_socket, socket_morph)
@@ -192,8 +175,7 @@ class _MaterialMorph:
             __init_link(node.inputs["Edge1 A"], shader.inputs["Alpha"])
 
     @classmethod
-    def __update_node_inputs(cls, node: ShaderNode, morph: Any) -> None:
-        """Update node inputs based on morph data"""
+    def __update_node_inputs(cls, node, morph):
         node.inputs["Ambient2"].default_value[:3] = morph.ambient_color[:3]
         node.inputs["Diffuse2"].default_value[:3] = morph.diffuse_color[:3]
         node.inputs["Specular2"].default_value[:3] = morph.specular_color[:3]
@@ -211,8 +193,7 @@ class _MaterialMorph:
         node.inputs["Sphere2 A"].default_value = morph.sphere_texture_factor[3]
 
     @classmethod
-    def __morph_node_add(cls, material: Material, morph: Optional[Any], prev_node: Optional[ShaderNode]) -> Optional[ShaderNode]:
-        """Add a morph node to a material"""
+    def __morph_node_add(cls, material, morph, prev_node):
         nodes, links = material.node_tree.nodes, material.node_tree.links
 
         shader = nodes.get("mmd_shader", None)
@@ -237,9 +218,8 @@ class _MaterialMorph:
             return node
         # connect last node to shader
         if shader:
-            logger.debug(f"Connecting last node to shader for {material.name}")
 
-            def __soft_link(socket_out: Optional[bpy.types.NodeSocket], socket_in: Optional[bpy.types.NodeSocket]) -> None:
+            def __soft_link(socket_out, socket_in):
                 if socket_out and socket_in:
                     links.new(socket_out, socket_in)
 
@@ -261,14 +241,12 @@ class _MaterialMorph:
         return shader
 
     @classmethod
-    def __get_shader(cls, morph_type: str) -> ShaderNodeTree:
-        """Get or create a shader node group for the specified morph type"""
+    def __get_shader(cls, morph_type):
         group_name = "MMDMorph" + morph_type
         shader = bpy.data.node_groups.get(group_name, None) or bpy.data.node_groups.new(name=group_name, type="ShaderNodeTree")
         if len(shader.nodes):
             return shader
 
-        logger.info(f"Creating new shader node group: {group_name}")
         ng = _NodeGroupUtils(shader)
         links = ng.links
 
@@ -279,18 +257,18 @@ class _MaterialMorph:
         ng.new_input_socket("Fac", None, 0, socket_type="NodeSocketFloat")
         ng.new_node("NodeGroupOutput", (3, 0))
 
-        def __blend_color_add(id_name: str, pos: Tuple[int, int], tag: str = "") -> ShaderNode:
+        def __blend_color_add(id_name, pos, tag=""):
             # MA_RAMP_MULT: ColorMul = Color1 * (Fac * Color2 + (1 - Fac))
             # MA_RAMP_ADD:  ColorAdd = Color1 + Fac * Color2
             # https://github.com/blender/blender/blob/594f47ecd2d5367ca936cf6fc6ec8168c2b360d0/source/blender/blenkernel/intern/material.c#L1400
             node_mix = ng.new_mix_node("MULTIPLY" if use_mul else "ADD", (pos[0] + 1, pos[1]))
             links.new(node_input.outputs["Fac"], node_mix.inputs["Fac"])
-            ng.new_input_socket("%s1" % id_name + tag, node_mix.inputs["Color1"])
-            ng.new_input_socket("%s2" % id_name + tag, node_mix.inputs["Color2"], socket_type="NodeSocketVector")
+            ng.new_input_socket(f"{id_name}1" + tag, node_mix.inputs["Color1"])
+            ng.new_input_socket(f"{id_name}2" + tag, node_mix.inputs["Color2"], socket_type="NodeSocketVector")
             ng.new_output_socket(id_name + tag, node_mix.outputs["Color"])
             return node_mix
 
-        def __blend_tex_color(id_name: str, pos: Tuple[int, int], node_tex_rgb: ShaderNode, node_tex_a_output: bpy.types.NodeSocket) -> None:
+        def __blend_tex_color(id_name, pos, node_tex_rgb, node_tex_a_output):
             # Tex Color = tex_rgb * tex_a + (1 - tex_a)
             # : tex_rgb = TexRGB * ColorMul + ColorAdd
             # : tex_a = TexA * ValueMul + ValueAdd
@@ -313,7 +291,7 @@ class _MaterialMorph:
                 ng.new_output_socket(id_name + " Tex", node_add.outputs[0], socket_type="NodeSocketColor")
                 ng.new_output_socket(id_name + " Tex Add", node_scale.outputs[0], socket_type="NodeSocketColor")
 
-        def __add_sockets(id_name: str, input1: bpy.types.NodeSocket, input2: bpy.types.NodeSocket, output: bpy.types.NodeSocket, tag: str = "") -> None:
+        def __add_sockets(id_name, input1, input2, output, tag=""):
             ng.new_input_socket(f"{id_name}1{tag}", input1, use_mul)
             ng.new_input_socket(f"{id_name}2{tag}", input2, use_mul)
             ng.new_output_socket(f"{id_name}{tag}", output)
@@ -362,5 +340,4 @@ class _MaterialMorph:
         __blend_tex_color("Sphere", (pos_x + 3, -3.5), sphere_rgb, separate_basea_toona_spherea.outputs[2])
 
         ng.hide_nodes()
-        logger.debug(f"Shader node group {group_name} created successfully")
         return ng.shader

core/mmd/core/translations.py

@@ -1,9 +1,5 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2021 MMD Tools authors
+# This file is part of MMD Tools.
 
 import itertools
 import re
@@ -33,11 +29,7 @@ class MMDTranslationElementType(Enum):
 
 
 class MMDDataHandlerABC(ABC):
-    @classmethod
-    @property
-    @abstractmethod
-    def type_name(cls) -> str:
-        pass
+    type_name: str
 
     @classmethod
     @abstractmethod
@@ -67,7 +59,8 @@ class MMDDataHandlerABC(ABC):
     @classmethod
     @abstractmethod
     def get_names(cls, mmd_translation_element: "MMDTranslationElement") -> Tuple[str, str, str]:
-        """Returns (name, name_j, name_e)"""
+        """Return (name, name_j, name_e)"""
+        pass
 
     @classmethod
     def is_restorable(cls, mmd_translation_element: "MMDTranslationElement") -> bool:
@@ -75,7 +68,7 @@ class MMDDataHandlerABC(ABC):
 
     @classmethod
     def check_data_visible(cls, filter_selected: bool, filter_visible: bool, select: bool, hide: bool) -> bool:
-        return filter_selected and not select or filter_visible and hide
+        return (filter_selected and not select) or (filter_visible and hide)
 
     @classmethod
     def prop_restorable(cls, layout: bpy.types.UILayout, mmd_translation_element: "MMDTranslationElement", prop_name: str, original_value: str, index: int):
@@ -86,7 +79,7 @@ class MMDDataHandlerABC(ABC):
             row.label(text="", icon="BLANK1")
             return
 
-        op = row.operator("mmd_tools.restore_mmd_translation_element_name", text="", icon="FILE_REFRESH")
+        op = row.operator("mmd_tools_local.restore_mmd_translation_element_name", text="", icon="FILE_REFRESH")
         op.index = index
         op.prop_name = prop_name
         op.restore_value = original_value
@@ -100,10 +93,7 @@ class MMDDataHandlerABC(ABC):
 
 
 class MMDBoneHandler(MMDDataHandlerABC):
-    @classmethod
-    @property
-    def type_name(cls) -> str:
-        return MMDTranslationElementType.BONE.name
+    type_name = MMDTranslationElementType.BONE.name
 
     @classmethod
     def draw_item(cls, layout: bpy.types.UILayout, mmd_translation_element: "MMDTranslationElement", index: int):
@@ -114,18 +104,18 @@ class MMDBoneHandler(MMDDataHandlerABC):
         cls.prop_restorable(prop_row, mmd_translation_element, "name", pose_bone.name, index)
         cls.prop_restorable(prop_row, mmd_translation_element, "name_j", pose_bone.mmd_bone.name_j, index)
         cls.prop_restorable(prop_row, mmd_translation_element, "name_e", pose_bone.mmd_bone.name_e, index)
-        row.prop(pose_bone.bone, "select", text="", emboss=False, icon_only=True, icon="RESTRICT_SELECT_OFF" if pose_bone.bone.select else "RESTRICT_SELECT_ON")
-        row.prop(pose_bone.bone, "hide", text="", emboss=False, icon_only=True, icon="HIDE_ON" if pose_bone.bone.hide else "HIDE_OFF")
+        row.prop(pose_bone.bone, "select", text="", emboss=False, icon_only=True, icon="RESTRICT_SELECT_OFF" if pose_bone.select else "RESTRICT_SELECT_ON")
+        row.prop(pose_bone.bone, "hide", text="", emboss=False, icon_only=True)
 
     @classmethod
     def collect_data(cls, mmd_translation: "MMDTranslation"):
         armature_object: bpy.types.Object = FnModel.find_armature_object(mmd_translation.id_data)
         pose_bone: bpy.types.PoseBone
         for index, pose_bone in enumerate(armature_object.pose.bones):
-            if not any(c.is_visible for c in pose_bone.bone.collections):
+            if pose_bone.bone.hide or (pose_bone.bone.collections and not any(c.is_visible for c in pose_bone.bone.collections)):
                 continue
 
-            mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements.add()
+            mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements.add()
             mmd_translation_element.type = MMDTranslationElementType.BONE.name
             mmd_translation_element.object = armature_object
             mmd_translation_element.data_path = f"pose.bones[{index}]"
@@ -140,14 +130,14 @@ class MMDBoneHandler(MMDDataHandlerABC):
 
     @classmethod
     def update_query(cls, mmd_translation: "MMDTranslation", filter_selected: bool, filter_visible: bool, check_blank_name: Callable[[str, str], bool]):
-        mmd_translation_element: "MMDTranslationElement"
+        mmd_translation_element: MMDTranslationElement
         for index, mmd_translation_element in enumerate(mmd_translation.translation_elements):
             if mmd_translation_element.type != MMDTranslationElementType.BONE.name:
                 continue
 
             pose_bone: bpy.types.PoseBone = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
 
-            if cls.check_data_visible(filter_selected, filter_visible, pose_bone.bone.select, pose_bone.bone.hide):
+            if cls.check_data_visible(filter_selected, filter_visible, pose_bone.select, pose_bone.bone.hide):
                 continue
 
             if check_blank_name(mmd_translation_element.name_j, mmd_translation_element.name_e):
@@ -156,7 +146,7 @@ class MMDBoneHandler(MMDDataHandlerABC):
             if mmd_translation.filter_restorable and not cls.is_restorable(mmd_translation_element):
                 continue
 
-            mmd_translation_element_index: "MMDTranslationElementIndex" = mmd_translation.filtered_translation_element_indices.add()
+            mmd_translation_element_index: MMDTranslationElementIndex = mmd_translation.filtered_translation_element_indices.add()
             mmd_translation_element_index.value = index
 
     @classmethod
@@ -176,14 +166,11 @@ class MMDBoneHandler(MMDDataHandlerABC):
 
 
 class MMDMorphHandler(MMDDataHandlerABC):
-    @classmethod
-    @property
-    def type_name(cls) -> str:
-        return MMDTranslationElementType.MORPH.name
+    type_name = MMDTranslationElementType.MORPH.name
 
     @classmethod
     def draw_item(cls, layout: bpy.types.UILayout, mmd_translation_element: "MMDTranslationElement", index: int):
-        morph: "_MorphBase" = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
+        morph: _MorphBase = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
         row = layout.row(align=True)
         row.label(text="", icon="SHAPEKEY_DATA")
         prop_row = row.row()
@@ -198,7 +185,7 @@ class MMDMorphHandler(MMDDataHandlerABC):
     @classmethod
     def collect_data(cls, mmd_translation: "MMDTranslation"):
         root_object: bpy.types.Object = mmd_translation.id_data
-        mmd_root: "MMDRoot" = root_object.mmd_root
+        mmd_root: MMDRoot = root_object.mmd_root
 
         for morphs_name, morphs in {
             "material_morphs": mmd_root.material_morphs,
@@ -207,9 +194,9 @@ class MMDMorphHandler(MMDDataHandlerABC):
             "vertex_morphs": mmd_root.vertex_morphs,
             "group_morphs": mmd_root.group_morphs,
         }.items():
-            morph: "_MorphBase"
+            morph: _MorphBase
             for index, morph in enumerate(morphs):
-                mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements.add()
+                mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements.add()
                 mmd_translation_element.type = MMDTranslationElementType.MORPH.name
                 mmd_translation_element.object = root_object
                 mmd_translation_element.data_path = f"mmd_root.{morphs_name}[{index}]"
@@ -228,24 +215,24 @@ class MMDMorphHandler(MMDDataHandlerABC):
 
     @classmethod
     def update_query(cls, mmd_translation: "MMDTranslation", filter_selected: bool, filter_visible: bool, check_blank_name: Callable[[str, str], bool]):
-        mmd_translation_element: "MMDTranslationElement"
+        mmd_translation_element: MMDTranslationElement
         for index, mmd_translation_element in enumerate(mmd_translation.translation_elements):
             if mmd_translation_element.type != MMDTranslationElementType.MORPH.name:
                 continue
 
-            morph: "_MorphBase" = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
+            morph: _MorphBase = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
             if check_blank_name(morph.name, morph.name_e):
                 continue
 
             if mmd_translation.filter_restorable and not cls.is_restorable(mmd_translation_element):
                 continue
 
-            mmd_translation_element_index: "MMDTranslationElementIndex" = mmd_translation.filtered_translation_element_indices.add()
+            mmd_translation_element_index: MMDTranslationElementIndex = mmd_translation.filtered_translation_element_indices.add()
             mmd_translation_element_index.value = index
 
     @classmethod
     def set_names(cls, mmd_translation_element: "MMDTranslationElement", name: Optional[str], name_j: Optional[str], name_e: Optional[str]):
-        morph: "_MorphBase" = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
+        morph: _MorphBase = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
         if name is not None:
             morph.name = name
         if name_e is not None:
@@ -253,15 +240,12 @@ class MMDMorphHandler(MMDDataHandlerABC):
 
     @classmethod
     def get_names(cls, mmd_translation_element: "MMDTranslationElement") -> Tuple[str, str, str]:
-        morph: "_MorphBase" = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
+        morph: _MorphBase = mmd_translation_element.object.path_resolve(mmd_translation_element.data_path)
         return (morph.name, "", morph.name_e)
 
 
 class MMDMaterialHandler(MMDDataHandlerABC):
-    @classmethod
-    @property
-    def type_name(cls) -> str:
-        return MMDTranslationElementType.MATERIAL.name
+    type_name = MMDTranslationElementType.MATERIAL.name
 
     @classmethod
     def draw_item(cls, layout: bpy.types.UILayout, mmd_translation_element: "MMDTranslationElement", index: int):
@@ -274,7 +258,7 @@ class MMDMaterialHandler(MMDDataHandlerABC):
         cls.prop_restorable(prop_row, mmd_translation_element, "name_j", material.mmd_material.name_j, index)
         cls.prop_restorable(prop_row, mmd_translation_element, "name_e", material.mmd_material.name_e, index)
         row.prop(mesh_object, "select", text="", emboss=False, icon_only=True, icon="RESTRICT_SELECT_OFF" if mesh_object.select_get() else "RESTRICT_SELECT_ON")
-        row.prop(mesh_object, "hide", text="", emboss=False, icon_only=True, icon="HIDE_ON" if mesh_object.hide_get() else "HIDE_OFF")
+        row.prop(mesh_object, "hide", text="", emboss=False, icon_only=True)
 
     MATERIAL_DATA_PATH_EXTRACT = re.compile(r"data\.materials\[(?P<index>\d*)\]")
 
@@ -293,7 +277,7 @@ class MMDMaterialHandler(MMDDataHandlerABC):
                 if not hasattr(material, "mmd_material"):
                     continue
 
-                mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements.add()
+                mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements.add()
                 mmd_translation_element.type = MMDTranslationElementType.MATERIAL.name
                 mmd_translation_element.object = mesh_object
                 mmd_translation_element.data_path = f"data.materials[{index}]"
@@ -314,7 +298,7 @@ class MMDMaterialHandler(MMDDataHandlerABC):
 
     @classmethod
     def update_query(cls, mmd_translation: "MMDTranslation", filter_selected: bool, filter_visible: bool, check_blank_name: Callable[[str, str], bool]):
-        mmd_translation_element: "MMDTranslationElement"
+        mmd_translation_element: MMDTranslationElement
         for index, mmd_translation_element in enumerate(mmd_translation.translation_elements):
             if mmd_translation_element.type != MMDTranslationElementType.MATERIAL.name:
                 continue
@@ -330,7 +314,7 @@ class MMDMaterialHandler(MMDDataHandlerABC):
             if mmd_translation.filter_restorable and not cls.is_restorable(mmd_translation_element):
                 continue
 
-            mmd_translation_element_index: "MMDTranslationElementIndex" = mmd_translation.filtered_translation_element_indices.add()
+            mmd_translation_element_index: MMDTranslationElementIndex = mmd_translation.filtered_translation_element_indices.add()
             mmd_translation_element_index.value = index
 
     @classmethod
@@ -350,10 +334,7 @@ class MMDMaterialHandler(MMDDataHandlerABC):
 
 
 class MMDDisplayHandler(MMDDataHandlerABC):
-    @classmethod
-    @property
-    def type_name(cls) -> str:
-        return MMDTranslationElementType.DISPLAY.name
+    type_name = MMDTranslationElementType.DISPLAY.name
 
     @classmethod
     def draw_item(cls, layout: bpy.types.UILayout, mmd_translation_element: "MMDTranslationElement", index: int):
@@ -366,7 +347,7 @@ class MMDDisplayHandler(MMDDataHandlerABC):
         cls.prop_disabled(prop_row, mmd_translation_element, "name")
         cls.prop_disabled(prop_row, mmd_translation_element, "name_e")
         row.prop(mmd_translation_element.object, "select", text="", emboss=False, icon_only=True, icon="RESTRICT_SELECT_OFF" if mmd_translation_element.object.select_get() else "RESTRICT_SELECT_ON")
-        row.prop(mmd_translation_element.object, "hide", text="", emboss=False, icon_only=True, icon="HIDE_ON" if mmd_translation_element.object.hide_get() else "HIDE_OFF")
+        row.prop(mmd_translation_element.object, "hide", text="", emboss=False, icon_only=True)
 
     DISPLAY_DATA_PATH_EXTRACT = re.compile(r"data\.collections\[(?P<index>\d*)\]")
 
@@ -375,7 +356,7 @@ class MMDDisplayHandler(MMDDataHandlerABC):
         armature_object: bpy.types.Object = FnModel.find_armature_object(mmd_translation.id_data)
         bone_collection: bpy.types.BoneCollection
         for index, bone_collection in enumerate(armature_object.data.collections):
-            mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements.add()
+            mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements.add()
             mmd_translation_element.type = MMDTranslationElementType.DISPLAY.name
             mmd_translation_element.object = armature_object
             mmd_translation_element.data_path = f"data.collections[{index}]"
@@ -396,7 +377,7 @@ class MMDDisplayHandler(MMDDataHandlerABC):
 
     @classmethod
     def update_query(cls, mmd_translation: "MMDTranslation", filter_selected: bool, filter_visible: bool, check_blank_name: Callable[[str, str], bool]):
-        mmd_translation_element: "MMDTranslationElement"
+        mmd_translation_element: MMDTranslationElement
         for index, mmd_translation_element in enumerate(mmd_translation.translation_elements):
             if mmd_translation_element.type != MMDTranslationElementType.DISPLAY.name:
                 continue
@@ -412,7 +393,7 @@ class MMDDisplayHandler(MMDDataHandlerABC):
             if mmd_translation.filter_restorable and not cls.is_restorable(mmd_translation_element):
                 continue
 
-            mmd_translation_element_index: "MMDTranslationElementIndex" = mmd_translation.filtered_translation_element_indices.add()
+            mmd_translation_element_index: MMDTranslationElementIndex = mmd_translation.filtered_translation_element_indices.add()
             mmd_translation_element_index.value = index
 
     @classmethod
@@ -428,10 +409,7 @@ class MMDDisplayHandler(MMDDataHandlerABC):
 
 
 class MMDPhysicsHandler(MMDDataHandlerABC):
-    @classmethod
-    @property
-    def type_name(cls) -> str:
-        return MMDTranslationElementType.PHYSICS.name
+    type_name = MMDTranslationElementType.PHYSICS.name
 
     @classmethod
     def draw_item(cls, layout: bpy.types.UILayout, mmd_translation_element: "MMDTranslationElement", index: int):
@@ -451,7 +429,7 @@ class MMDPhysicsHandler(MMDDataHandlerABC):
         cls.prop_restorable(prop_row, mmd_translation_element, "name_j", mmd_object.name_j, index)
         cls.prop_restorable(prop_row, mmd_translation_element, "name_e", mmd_object.name_e, index)
         row.prop(obj, "select", text="", emboss=False, icon_only=True, icon="RESTRICT_SELECT_OFF" if obj.select_get() else "RESTRICT_SELECT_ON")
-        row.prop(obj, "hide", text="", emboss=False, icon_only=True, icon="HIDE_ON" if obj.hide_get() else "HIDE_OFF")
+        row.prop(obj, "hide", text="", emboss=False, icon_only=True)
 
     @classmethod
     def collect_data(cls, mmd_translation: "MMDTranslation"):
@@ -460,7 +438,7 @@ class MMDPhysicsHandler(MMDDataHandlerABC):
 
         obj: bpy.types.Object
         for obj in model.rigidBodies():
-            mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements.add()
+            mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements.add()
             mmd_translation_element.type = MMDTranslationElementType.PHYSICS.name
             mmd_translation_element.object = obj
             mmd_translation_element.data_path = "mmd_rigid"
@@ -470,7 +448,7 @@ class MMDPhysicsHandler(MMDDataHandlerABC):
 
         obj: bpy.types.Object
         for obj in model.joints():
-            mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements.add()
+            mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements.add()
             mmd_translation_element.type = MMDTranslationElementType.PHYSICS.name
             mmd_translation_element.object = obj
             mmd_translation_element.data_path = "mmd_joint"
@@ -484,7 +462,7 @@ class MMDPhysicsHandler(MMDDataHandlerABC):
 
     @classmethod
     def update_query(cls, mmd_translation: "MMDTranslation", filter_selected: bool, filter_visible: bool, check_blank_name: Callable[[str, str], bool]):
-        mmd_translation_element: "MMDTranslationElement"
+        mmd_translation_element: MMDTranslationElement
         for index, mmd_translation_element in enumerate(mmd_translation.translation_elements):
             if mmd_translation_element.type != MMDTranslationElementType.PHYSICS.name:
                 continue
@@ -504,7 +482,7 @@ class MMDPhysicsHandler(MMDDataHandlerABC):
             if mmd_translation.filter_restorable and not cls.is_restorable(mmd_translation_element):
                 continue
 
-            mmd_translation_element_index: "MMDTranslationElementIndex" = mmd_translation.filtered_translation_element_indices.add()
+            mmd_translation_element_index: MMDTranslationElementIndex = mmd_translation.filtered_translation_element_indices.add()
             mmd_translation_element_index.value = index
 
     @classmethod
@@ -536,10 +514,7 @@ class MMDPhysicsHandler(MMDDataHandlerABC):
 
 
 class MMDInfoHandler(MMDDataHandlerABC):
-    @classmethod
-    @property
-    def type_name(cls) -> str:
-        return MMDTranslationElementType.INFO.name
+    type_name = MMDTranslationElementType.INFO.name
 
     TYPE_TO_ICONS = {
         "EMPTY": "EMPTY_DATA",
@@ -557,7 +532,7 @@ class MMDInfoHandler(MMDDataHandlerABC):
         cls.prop_disabled(prop_row, mmd_translation_element, "name")
         cls.prop_disabled(prop_row, mmd_translation_element, "name_e")
         row.prop(info_object, "select", text="", emboss=False, icon_only=True, icon="RESTRICT_SELECT_OFF" if info_object.select_get() else "RESTRICT_SELECT_ON")
-        row.prop(info_object, "hide", text="", emboss=False, icon_only=True, icon="HIDE_ON" if info_object.hide_get() else "HIDE_OFF")
+        row.prop(info_object, "hide", text="", emboss=False, icon_only=True)
 
     @classmethod
     def collect_data(cls, mmd_translation: "MMDTranslation"):
@@ -568,7 +543,7 @@ class MMDInfoHandler(MMDDataHandlerABC):
             info_objects.append(armature_object)
 
         for info_object in itertools.chain(info_objects, FnModel.iterate_mesh_objects(root_object)):
-            mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements.add()
+            mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements.add()
             mmd_translation_element.type = MMDTranslationElementType.INFO.name
             mmd_translation_element.object = info_object
             mmd_translation_element.data_path = ""
@@ -582,7 +557,7 @@ class MMDInfoHandler(MMDDataHandlerABC):
 
     @classmethod
     def update_query(cls, mmd_translation: "MMDTranslation", filter_selected: bool, filter_visible: bool, check_blank_name: Callable[[str, str], bool]):
-        mmd_translation_element: "MMDTranslationElement"
+        mmd_translation_element: MMDTranslationElement
         for index, mmd_translation_element in enumerate(mmd_translation.translation_elements):
             if mmd_translation_element.type != MMDTranslationElementType.INFO.name:
                 continue
@@ -597,7 +572,7 @@ class MMDInfoHandler(MMDDataHandlerABC):
             if mmd_translation.filter_restorable and not cls.is_restorable(mmd_translation_element):
                 continue
 
-            mmd_translation_element_index: "MMDTranslationElementIndex" = mmd_translation.filtered_translation_element_indices.add()
+            mmd_translation_element_index: MMDTranslationElementIndex = mmd_translation.filtered_translation_element_indices.add()
             mmd_translation_element_index.value = index
 
     @classmethod
@@ -627,10 +602,10 @@ MMD_DATA_TYPE_TO_HANDLERS: Dict[str, MMDDataHandlerABC] = {h.type_name: h for h
 class FnTranslations:
     @staticmethod
     def apply_translations(root_object: bpy.types.Object):
-        mmd_translation: "MMDTranslation" = root_object.mmd_root.translation
-        mmd_translation_element_index: "MMDTranslationElementIndex"
+        mmd_translation: MMDTranslation = root_object.mmd_root.translation
+        mmd_translation_element_index: MMDTranslationElementIndex
         for mmd_translation_element_index in mmd_translation.filtered_translation_element_indices:
-            mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements[mmd_translation_element_index.value]
+            mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements[mmd_translation_element_index.value]
             handler: MMDDataHandlerABC = MMD_DATA_TYPE_TO_HANDLERS[mmd_translation_element.type]
             name, name_j, name_e = handler.get_names(mmd_translation_element)
             handler.set_names(
@@ -642,7 +617,7 @@ class FnTranslations:
 
     @staticmethod
     def execute_translation_batch(root_object: bpy.types.Object) -> Tuple[Dict[str, str], Optional[bpy.types.Text]]:
-        mmd_translation: "MMDTranslation" = root_object.mmd_root.translation
+        mmd_translation: MMDTranslation = root_object.mmd_root.translation
         batch_operation_script = mmd_translation.batch_operation_script
         if not batch_operation_script:
             return ({}, None)
@@ -657,9 +632,9 @@ class FnTranslations:
         batch_operation_script_ast = compile(mmd_translation.batch_operation_script, "<string>", "eval")
         batch_operation_target: str = mmd_translation.batch_operation_target
 
-        mmd_translation_element_index: "MMDTranslationElementIndex"
+        mmd_translation_element_index: MMDTranslationElementIndex
         for mmd_translation_element_index in mmd_translation.filtered_translation_element_indices:
-            mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements[mmd_translation_element_index.value]
+            mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements[mmd_translation_element_index.value]
 
             handler: MMDDataHandlerABC = MMD_DATA_TYPE_TO_HANDLERS[mmd_translation_element.type]
 
@@ -684,7 +659,7 @@ class FnTranslations:
                         "org_name_j": org_name_j,
                         "org_name_e": org_name_e,
                     },
-                )
+                ),
             )
 
             if batch_operation_target == "BLENDER":
@@ -701,8 +676,8 @@ class FnTranslations:
         if mmd_translation.filtered_translation_element_indices_active_index < 0:
             return
 
-        mmd_translation_element_index: "MMDTranslationElementIndex" = mmd_translation.filtered_translation_element_indices[mmd_translation.filtered_translation_element_indices_active_index]
-        mmd_translation_element: "MMDTranslationElement" = mmd_translation.translation_elements[mmd_translation_element_index.value]
+        mmd_translation_element_index: MMDTranslationElementIndex = mmd_translation.filtered_translation_element_indices[mmd_translation.filtered_translation_element_indices_active_index]
+        mmd_translation_element: MMDTranslationElement = mmd_translation.translation_elements[mmd_translation_element_index.value]
 
         MMD_DATA_TYPE_TO_HANDLERS[mmd_translation_element.type].update_index(mmd_translation_element)
 
@@ -724,7 +699,7 @@ class FnTranslations:
         filter_visible: bool = mmd_translation.filter_visible
 
         def check_blank_name(name_j: str, name_e: str) -> bool:
-            return filter_japanese_blank and name_j or filter_english_blank and name_e
+            return (filter_japanese_blank and name_j) or (filter_english_blank and name_e)
 
         for handler in MMD_DATA_HANDLERS:
             if handler.type_name in mmd_translation.filter_types:

core/mmd/core/vmd/importer.py

@@ -5,12 +5,13 @@
 # Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
 # MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
 
-import logging
+from .....core.logging_setup import logger
 import math
 import os
 from typing import Union
 
 import bpy
+from bpy_extras import anim_utils
 from mathutils import Quaternion, Vector
 
 from ... import utils
@@ -260,7 +261,7 @@ class VMDImporter:
     def __init__(self, filepath, scale=1.0, bone_mapper=None, use_pose_mode=False, convert_mmd_camera=True, convert_mmd_lamp=True, frame_margin=5, use_mirror=False, use_NLA=False):
         self.__vmdFile = vmd.File()
         self.__vmdFile.load(filepath=filepath)
-        logging.debug(str(self.__vmdFile.header))
+        logger.debug(str(self.__vmdFile.header))
         self.__scale = scale
         self.__convert_mmd_camera = convert_mmd_camera
         self.__convert_mmd_lamp = convert_mmd_lamp
@@ -300,21 +301,31 @@ class VMDImporter:
         kp.handle_right = kp.co + Vector((1, 0))
 
     @staticmethod
-    def __keyframe_insert_inner(fcurves: bpy.types.ActionFCurves, path: str, index: int, frame: float, value: float):
-        fcurve = fcurves.find(path, index=index)
+    def __get_channelbag(action: bpy.types.Action, target_id=None):
+        """Get or create channelbag for action using Blender 5.0 API."""
+        if not action.slots:
+            slot = action.slots.new(for_id=target_id)
+        else:
+            slot = action.slots[0]
+        return anim_utils.action_ensure_channelbag_for_slot(action, slot)
+
+    @staticmethod
+    def __keyframe_insert_inner(action: bpy.types.Action, path: str, index: int, frame: float, value: float, target_id=None, group_name=None):
+        channelbag = VMDImporter.__get_channelbag(action, target_id)
+        fcurve = channelbag.fcurves.find(path, index=index)
         if fcurve is None:
-            fcurve = fcurves.new(path, index=index)
+            fcurve = channelbag.fcurves.new(path, index=index, group_name=group_name)
         fcurve.keyframe_points.insert(frame, value, options={"FAST"})
 
     @staticmethod
-    def __keyframe_insert(fcurves: bpy.types.ActionFCurves, path: str, frame: float, value: Union[int, float, Vector]):
+    def __keyframe_insert(action: bpy.types.Action, path: str, frame: float, value: Union[int, float, Vector], target_id=None, group_name=None):
         if isinstance(value, (int, float)):
-            VMDImporter.__keyframe_insert_inner(fcurves, path, 0, frame, value)
+            VMDImporter.__keyframe_insert_inner(action, path, 0, frame, value, target_id, group_name)
 
         elif isinstance(value, Vector):
-            VMDImporter.__keyframe_insert_inner(fcurves, path, 0, frame, value[0])
-            VMDImporter.__keyframe_insert_inner(fcurves, path, 1, frame, value[1])
-            VMDImporter.__keyframe_insert_inner(fcurves, path, 2, frame, value[2])
+            VMDImporter.__keyframe_insert_inner(action, path, 0, frame, value[0], target_id, group_name)
+            VMDImporter.__keyframe_insert_inner(action, path, 1, frame, value[1], target_id, group_name)
+            VMDImporter.__keyframe_insert_inner(action, path, 2, frame, value[2], target_id, group_name)
 
         else:
             raise TypeError("Unsupported type: {0}".format(type(value)))
@@ -370,7 +381,7 @@ class VMDImporter:
 
     def __assignToArmature(self, armObj, action_name=None):
         boneAnim = self.__vmdFile.boneAnimation
-        logging.info("---- bone animations:%5d  target: %s", len(boneAnim), armObj.name)
+        logger.info("---- bone animations:%5d  target: %s", len(boneAnim), armObj.name)
         if len(boneAnim) < 1:
             return
 
@@ -401,22 +412,25 @@ class VMDImporter:
                 continue
             bone = pose_bones.get(name, None)
             if bone is None:
-                logging.warning("WARNING: not found bone %s (%d frames)", name, len(keyFrames))
+                logger.warning("WARNING: not found bone %s (%d frames)", name, len(keyFrames))
                 continue
-            logging.info("(bone) frames:%5d  name: %s", len(keyFrames), name)
+            logger.info("(bone) frames:%5d  name: %s", len(keyFrames), name)
             assert bone_name_table.get(bone.name, name) == name
             bone_name_table[bone.name] = name
 
+            # Get channelbag for this action
+            channelbag = self.__get_channelbag(action, armObj.data)
+            
             fcurves = [dummy_keyframe_points] * 7  # x, y, z, r0, r1, r2, (r3)
             data_path_rot = prop_rot_map.get(bone.rotation_mode, "rotation_euler")
             bone_rotation = getattr(bone, data_path_rot)
             default_values = list(bone.location) + list(bone_rotation)
             data_path = 'pose.bones["%s"].location' % bone.name
             for axis_i in range(3):
-                fcurves[axis_i] = action.fcurves.new(data_path=data_path, index=axis_i, action_group=bone.name)
+                fcurves[axis_i] = channelbag.fcurves.new(data_path=data_path, index=axis_i, group_name=bone.name)
             data_path = 'pose.bones["%s"].%s' % (bone.name, data_path_rot)
             for axis_i in range(len(bone_rotation)):
-                fcurves[3 + axis_i] = action.fcurves.new(data_path=data_path, index=axis_i, action_group=bone.name)
+                fcurves[3 + axis_i] = channelbag.fcurves.new(data_path=data_path, index=axis_i, group_name=bone.name)
 
             for i in range(len(default_values)):
                 c = fcurves[i]
@@ -458,15 +472,17 @@ class VMDImporter:
                         self.__setInterpolation(interp[idx : idx + 16 : 4], prev_kp, kp)
                 prev_kps = curr_kps
 
-        for c in action.fcurves:
+        # Get channelbag to iterate fcurves
+        channelbag = self.__get_channelbag(action, armObj.data)
+        for c in channelbag.fcurves:
             self.__fixFcurveHandles(c)
 
         # property animation
         propertyAnim = self.__vmdFile.propertyAnimation
         if len(propertyAnim) > 0:
-            logging.info("---- IK animations:%5d  target: %s", len(propertyAnim), armObj.name)
+            logger.info("---- IK animations:%5d  target: %s", len(propertyAnim), armObj.name)
             for keyFrame in propertyAnim:
-                logging.debug("(IK) frame:%5d  list: %s", keyFrame.frame_number, keyFrame.ik_states)
+                logger.debug("(IK) frame:%5d  list: %s", keyFrame.frame_number, keyFrame.ik_states)
                 frame = keyFrame.frame_number + self.__frame_margin
                 for ikName, enable in keyFrame.ik_states:
                     bone = pose_bones.get(ikName, None)
@@ -500,7 +516,7 @@ class VMDImporter:
 
     def __assignToMesh(self, meshObj, action_name=None):
         shapeKeyAnim = self.__vmdFile.shapeKeyAnimation
-        logging.info("---- morph animations:%5d  target: %s", len(shapeKeyAnim), meshObj.name)
+        logger.info("---- morph animations:%5d  target: %s", len(shapeKeyAnim), meshObj.name)
         if len(shapeKeyAnim) < 1:
             return
 
@@ -514,11 +530,12 @@ class VMDImporter:
 
         for name, keyFrames in shapeKeyAnim.items():
             if name not in shapeKeyDict:
-                logging.warning("WARNING: not found shape key %s (%d frames)", name, len(keyFrames))
+                logger.warning("WARNING: not found shape key %s (%d frames)", name, len(keyFrames))
                 continue
-            logging.info("(mesh) frames:%5d  name: %s", len(keyFrames), name)
+            logger.info("(mesh) frames:%5d  name: %s", len(keyFrames), name)
             shapeKey = shapeKeyDict[name]
-            fcurve = action.fcurves.new(data_path='key_blocks["%s"].value' % shapeKey.name)
+            channelbag = self.__get_channelbag(action, meshObj.data.shape_keys)
+            fcurve = channelbag.fcurves.new(data_path='key_blocks["%s"].value' % shapeKey.name)
             fcurve.keyframe_points.add(len(keyFrames))
             keyFrames.sort(key=lambda x: x.frame_number)
             for k, v in zip(keyFrames, fcurve.keyframe_points):
@@ -532,16 +549,16 @@ class VMDImporter:
 
     def __assignToRoot(self, rootObj, action_name=None):
         propertyAnim = self.__vmdFile.propertyAnimation
-        logging.info("---- display animations:%5d  target: %s", len(propertyAnim), rootObj.name)
+        logger.info("---- display animations:%5d  target: %s", len(propertyAnim), rootObj.name)
         if len(propertyAnim) < 1:
             return
 
         action_name = action_name or rootObj.name
         action = bpy.data.actions.new(name=action_name)
 
-        logging.debug("(Display) list(frame, show): %s", [(keyFrame.frame_number, bool(keyFrame.visible)) for keyFrame in propertyAnim])
+        logger.debug("(Display) list(frame, show): %s", [(keyFrame.frame_number, bool(keyFrame.visible)) for keyFrame in propertyAnim])
         for keyFrame in propertyAnim:
-            self.__keyframe_insert(action.fcurves, "mmd_root.show_meshes", keyFrame.frame_number + self.__frame_margin, float(keyFrame.visible))
+            self.__keyframe_insert(action, "mmd_root.show_meshes", keyFrame.frame_number + self.__frame_margin, float(keyFrame.visible), rootObj)
 
         self.__assign_action(rootObj, action)
 
@@ -562,7 +579,7 @@ class VMDImporter:
         cameraObj = mmdCameraInstance.camera()
 
         cameraAnim = self.__vmdFile.cameraAnimation
-        logging.info("(camera) frames:%5d  name: %s", len(cameraAnim), mmdCamera.name)
+        logger.info("(camera) frames:%5d  name: %s", len(cameraAnim), mmdCamera.name)
         if len(cameraAnim) < 1:
             return
 
@@ -574,14 +591,18 @@ class VMDImporter:
         if self.__mirror:
             _loc, _rot = _MirrorMapper.get_location, _MirrorMapper.get_rotation3
 
+        # Get channelbags for camera actions
+        parent_channelbag = self.__get_channelbag(parent_action, mmdCamera.parent)
+        distance_channelbag = self.__get_channelbag(distance_action, mmdCamera.distance)
+        
         fcurves = []
         for i in range(3):
-            fcurves.append(parent_action.fcurves.new(data_path="location", index=i))  # x, y, z
+            fcurves.append(parent_channelbag.fcurves.new(data_path="location", index=i))  # x, y, z
         for i in range(3):
-            fcurves.append(parent_action.fcurves.new(data_path="rotation_euler", index=i))  # rx, ry, rz
-        fcurves.append(parent_action.fcurves.new(data_path="mmd_camera.angle"))  # fov
-        fcurves.append(parent_action.fcurves.new(data_path="mmd_camera.is_perspective"))  # persp
-        fcurves.append(distance_action.fcurves.new(data_path="location", index=1))  # dis
+            fcurves.append(parent_channelbag.fcurves.new(data_path="rotation_euler", index=i))  # rx, ry, rz
+        fcurves.append(parent_channelbag.fcurves.new(data_path="mmd_camera.angle"))  # fov
+        fcurves.append(parent_channelbag.fcurves.new(data_path="mmd_camera.is_perspective"))  # persp
+        fcurves.append(distance_channelbag.fcurves.new(data_path="location", index=1))  # dis
         for c in fcurves:
             c.keyframe_points.add(len(cameraAnim))
 
@@ -629,7 +650,7 @@ class VMDImporter:
         lampObj = mmdLampInstance.lamp()
 
         lampAnim = self.__vmdFile.lampAnimation
-        logging.info("(lamp) frames:%5d  name: %s", len(lampAnim), mmdLamp.name)
+        logger.info("(lamp) frames:%5d  name: %s", len(lampAnim), mmdLamp.name)
         if len(lampAnim) < 1:
             return
 
@@ -640,10 +661,11 @@ class VMDImporter:
         _loc = _MirrorMapper.get_location if self.__mirror else lambda i: i
         for keyFrame in lampAnim:
             frame = keyFrame.frame_number + self.__frame_margin
-            self.__keyframe_insert(color_action.fcurves, "color", frame, Vector(keyFrame.color))
-            self.__keyframe_insert(location_action.fcurves, "location", frame, Vector(_loc(keyFrame.direction)).xzy * -1)
+            self.__keyframe_insert(color_action, "color", frame, Vector(keyFrame.color), lampObj)
+            self.__keyframe_insert(location_action, "location", frame, Vector(_loc(keyFrame.direction)).xzy * -1, mmdLamp)
 
-        for fcurve in location_action.fcurves:
+        location_channelbag = self.__get_channelbag(location_action, mmdLamp)
+        for fcurve in location_channelbag.fcurves:
             self.detectLampChange(fcurve)
 
         self.__assign_action(lampObj.data, color_action)

core/mmd/cycles_converter.py

@@ -1,48 +1,39 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2012 MMD Tools authors
+# This file is part of MMD Tools.
 
-from typing import Iterable, Optional, Any, List, Tuple, Union
+from typing import Iterable, Optional
 
 import bpy
-from bpy.types import Material, NodeTree, Node, NodeSocket, ShaderNodeGroup, ShaderNodeOutputMaterial, NodeLink
 
-from ..logging_setup import logger
-from .core.shader import _NodeGroupUtils
 from .core.material import FnMaterial
+from .core.shader import _NodeGroupUtils
 
 
-def __switchToCyclesRenderEngine() -> None:
+def __switchToCyclesRenderEngine():
     if bpy.context.scene.render.engine != "CYCLES":
-        logger.debug("Switching render engine to Cycles")
         bpy.context.scene.render.engine = "CYCLES"
 
 
-def __exposeNodeTreeInput(in_socket: NodeSocket, name: str, default_value: Any, node_input: Node, shader: NodeTree) -> None:
+def __exposeNodeTreeInput(in_socket, name, default_value, node_input, shader):
     _NodeGroupUtils(shader).new_input_socket(name, in_socket, default_value)
 
 
-def __exposeNodeTreeOutput(out_socket: NodeSocket, name: str, node_output: Node, shader: NodeTree) -> None:
+def __exposeNodeTreeOutput(out_socket, name, node_output, shader):
     _NodeGroupUtils(shader).new_output_socket(name, out_socket)
 
 
-def __getMaterialOutput(nodes: bpy.types.Nodes, bl_idname: str) -> Node:
+def __getMaterialOutput(nodes, bl_idname):
     o = next((n for n in nodes if n.bl_idname == bl_idname and n.is_active_output), None) or nodes.new(bl_idname)
     o.is_active_output = True
     return o
 
 
-def create_MMDAlphaShader() -> NodeTree:
+def create_MMDAlphaShader():
     __switchToCyclesRenderEngine()
 
     if "MMDAlphaShader" in bpy.data.node_groups:
-        logger.debug("Using existing MMDAlphaShader node group")
         return bpy.data.node_groups["MMDAlphaShader"]
 
-    logger.info("Creating new MMDAlphaShader node group")
     shader = bpy.data.node_groups.new(name="MMDAlphaShader", type="ShaderNodeTree")
 
     node_input = shader.nodes.new("NodeGroupInput")
@@ -64,28 +55,26 @@ def create_MMDAlphaShader() -> NodeTree:
     return shader
 
 
-def create_MMDBasicShader() -> NodeTree:
+def create_MMDBasicShader():
     __switchToCyclesRenderEngine()
 
     if "MMDBasicShader" in bpy.data.node_groups:
-        logger.debug("Using existing MMDBasicShader node group")
         return bpy.data.node_groups["MMDBasicShader"]
 
-    logger.info("Creating new MMDBasicShader node group")
-    shader: NodeTree = bpy.data.node_groups.new(name="MMDBasicShader", type="ShaderNodeTree")
+    shader: bpy.types.ShaderNodeTree = bpy.data.node_groups.new(name="MMDBasicShader", type="ShaderNodeTree")
 
-    node_input: Node = shader.nodes.new("NodeGroupInput")
-    node_output: Node = shader.nodes.new("NodeGroupOutput")
+    node_input: bpy.types.NodeGroupInput = shader.nodes.new("NodeGroupInput")
+    node_output: bpy.types.NodeGroupOutput = shader.nodes.new("NodeGroupOutput")
     node_output.location.x += 250
     node_input.location.x -= 500
 
-    dif: Node = shader.nodes.new("ShaderNodeBsdfDiffuse")
+    dif: bpy.types.ShaderNodeBsdfDiffuse = shader.nodes.new("ShaderNodeBsdfDiffuse")
     dif.location.x -= 250
     dif.location.y += 150
-    glo: Node = shader.nodes.new("ShaderNodeBsdfAnisotropic")
+    glo: bpy.types.ShaderNodeBsdfAnisotropic = shader.nodes.new("ShaderNodeBsdfAnisotropic")
     glo.location.x -= 250
     glo.location.y -= 150
-    mix: Node = shader.nodes.new("ShaderNodeMixShader")
+    mix: bpy.types.ShaderNodeMixShader = shader.nodes.new("ShaderNodeMixShader")
     shader.links.new(mix.inputs[1], dif.outputs["BSDF"])
     shader.links.new(mix.inputs[2], glo.outputs["BSDF"])
 
@@ -98,65 +87,62 @@ def create_MMDBasicShader() -> NodeTree:
     return shader
 
 
-def __enum_linked_nodes(node: Node) -> Iterable[Node]:
+def __enum_linked_nodes(node: bpy.types.Node) -> Iterable[bpy.types.Node]:
     yield node
     if node.parent:
         yield node.parent
-    for n in set(l.from_node for i in node.inputs for l in i.links):
+    for n in {link.from_node for i in node.inputs for link in i.links}:
         yield from __enum_linked_nodes(n)
 
 
-def __cleanNodeTree(material: Material) -> None:
-    logger.debug(f"Cleaning node tree for material: {material.name}")
+def __cleanNodeTree(material: bpy.types.Material):
     nodes = material.node_tree.nodes
-    node_names = set(n.name for n in nodes)
+    node_names = {n.name for n in nodes}
     for o in (n for n in nodes if n.bl_idname in {"ShaderNodeOutput", "ShaderNodeOutputMaterial"}):
         if any(i.is_linked for i in o.inputs):
-            node_names -= set(linked.name for linked in __enum_linked_nodes(o))
+            node_names -= {linked.name for linked in __enum_linked_nodes(o)}
     for name in node_names:
         nodes.remove(nodes[name])
 
 
-def convertToCyclesShader(obj: bpy.types.Object, use_principled: bool = False, clean_nodes: bool = False, subsurface: float = 0.001) -> None:
-    logger.info(f"Converting {obj.name} to Cycles shader (use_principled={use_principled}, clean_nodes={clean_nodes})")
+def convertToCyclesShader(obj: bpy.types.Object, use_principled=False, clean_nodes=False, subsurface=0.001):
     __switchToCyclesRenderEngine()
     convertToBlenderShader(obj, use_principled, clean_nodes, subsurface)
 
 
-def convertToBlenderShader(obj: bpy.types.Object, use_principled: bool = False, clean_nodes: bool = False, subsurface: float = 0.001) -> None:
+def convertToBlenderShader(obj: bpy.types.Object, use_principled=False, clean_nodes=False, subsurface=0.001):
     for i in obj.material_slots:
         if not i.material:
             continue
+        # use_nodes is deprecated in 5.0 but always returns True and setting it is safe
         if not i.material.use_nodes:
-            logger.debug(f"Enabling nodes for material: {i.material.name}")
             i.material.use_nodes = True
             __convertToMMDBasicShader(i.material)
         if use_principled:
-            logger.debug(f"Converting material to Principled BSDF: {i.material.name}")
             __convertToPrincipledBsdf(i.material, subsurface)
         if clean_nodes:
             __cleanNodeTree(i.material)
 
-def convertToMMDShader(obj: bpy.types.Object) -> None:
+
+def convertToMMDShader(obj):
     """BSDF -> MMDShaderDev conversion."""
-    logger.info(f"Converting {obj.name} to MMD shader")
     for i in obj.material_slots:
         if not i.material:
             continue
+        # use_nodes is deprecated in 5.0 but always returns True and setting it is safe
         if not i.material.use_nodes:
-            logger.debug(f"Enabling nodes for material: {i.material.name}")
             i.material.use_nodes = True
         FnMaterial.convert_to_mmd_material(i.material)
 
-def __convertToMMDBasicShader(material: Material) -> None:
-    logger.debug(f"Converting material to MMD Basic Shader: {material.name}")
+
+def __convertToMMDBasicShader(material: bpy.types.Material):
     # TODO: test me
     mmd_basic_shader_grp = create_MMDBasicShader()
     mmd_alpha_shader_grp = create_MMDAlphaShader()
 
-    if not any(filter(lambda x: isinstance(x, ShaderNodeGroup) and x.node_tree.name in {"MMDBasicShader", "MMDAlphaShader"}, material.node_tree.nodes)):
+    if not any(filter(lambda x: isinstance(x, bpy.types.ShaderNodeGroup) and x.node_tree.name in {"MMDBasicShader", "MMDAlphaShader"}, material.node_tree.nodes)):
         # Add nodes for Cycles Render
-        shader: ShaderNodeGroup = material.node_tree.nodes.new("ShaderNodeGroup")
+        shader: bpy.types.ShaderNodeGroup = material.node_tree.nodes.new("ShaderNodeGroup")
         shader.node_tree = mmd_basic_shader_grp
         shader.inputs[0].default_value[:3] = material.diffuse_color[:3]
         shader.inputs[1].default_value[:3] = material.specular_color[:3]
@@ -171,8 +157,7 @@ def __convertToMMDBasicShader(material: Material) -> None:
             alpha_value = material.diffuse_color[3]
 
         if alpha_value < 1.0:
-            logger.debug(f"Material has alpha: {material.name}, alpha={alpha_value}")
-            alpha_shader: ShaderNodeGroup = material.node_tree.nodes.new("ShaderNodeGroup")
+            alpha_shader: bpy.types.ShaderNodeGroup = material.node_tree.nodes.new("ShaderNodeGroup")
             alpha_shader.location.x = shader.location.x + 250
             alpha_shader.location.y = shader.location.y - 150
             alpha_shader.node_tree = mmd_alpha_shader_grp
@@ -180,22 +165,21 @@ def __convertToMMDBasicShader(material: Material) -> None:
             material.node_tree.links.new(alpha_shader.inputs[0], outplug)
             outplug = alpha_shader.outputs[0]
 
-        material_output: ShaderNodeOutputMaterial = __getMaterialOutput(material.node_tree.nodes, "ShaderNodeOutputMaterial")
+        material_output: bpy.types.ShaderNodeOutputMaterial = __getMaterialOutput(material.node_tree.nodes, "ShaderNodeOutputMaterial")
         material.node_tree.links.new(material_output.inputs["Surface"], outplug)
         material_output.location.x = shader.location.x + 500
         material_output.location.y = shader.location.y - 150
 
 
-def __convertToPrincipledBsdf(material: Material, subsurface: float) -> None:
-    logger.debug(f"Converting material to Principled BSDF: {material.name}")
+def __convertToPrincipledBsdf(material: bpy.types.Material, subsurface: float):
     node_names = set()
-    for s in (n for n in material.node_tree.nodes if isinstance(n, ShaderNodeGroup)):
+    for s in (n for n in material.node_tree.nodes if isinstance(n, bpy.types.ShaderNodeGroup)):
         if s.node_tree.name == "MMDBasicShader":
-            l: NodeLink
-            for l in s.outputs[0].links:
-                to_node = l.to_node
+            link: bpy.types.NodeLink
+            for link in s.outputs[0].links:
+                to_node = link.to_node
                 # assuming there is no bpy.types.NodeReroute between MMDBasicShader and MMDAlphaShader
-                if isinstance(to_node, ShaderNodeGroup) and to_node.node_tree.name == "MMDAlphaShader":
+                if isinstance(to_node, bpy.types.ShaderNodeGroup) and to_node.node_tree.name == "MMDAlphaShader":
                     __switchToPrincipledBsdf(material.node_tree, s, subsurface, node_alpha=to_node)
                     node_names.add(to_node.name)
                 else:
@@ -210,9 +194,8 @@ def __convertToPrincipledBsdf(material: Material, subsurface: float) -> None:
         nodes.remove(nodes[name])
 
 
-def __switchToPrincipledBsdf(node_tree: NodeTree, node_basic: ShaderNodeGroup, subsurface: float, node_alpha: Optional[ShaderNodeGroup] = None) -> None:
-    logger.debug(f"Switching to Principled BSDF: {node_basic.name}")
-    shader: Node = node_tree.nodes.new("ShaderNodeBsdfPrincipled")
+def __switchToPrincipledBsdf(node_tree: bpy.types.NodeTree, node_basic: bpy.types.ShaderNodeGroup, subsurface: float, node_alpha: Optional[bpy.types.ShaderNodeGroup] = None):
+    shader: bpy.types.ShaderNodeBsdfPrincipled = node_tree.nodes.new("ShaderNodeBsdfPrincipled")
     shader.parent = node_basic.parent
     shader.location.x = node_basic.location.x
     shader.location.y = node_basic.location.y
@@ -240,7 +223,7 @@ def __switchToPrincipledBsdf(node_tree: NodeTree, node_basic: ShaderNodeGroup, s
 
         if alpha_socket_name in node_alpha.inputs:
             if "Alpha" in shader.inputs:
-                shader.inputs["Alpha"].default_value = node_alpha.inputs[alpha_socket_name].default_value
+                shader.inputs["Alpha"].default_value = node_alpha.inputs["Alpha"].default_value
                 if node_alpha.inputs[alpha_socket_name].is_linked:
                     node_tree.links.new(node_alpha.inputs[alpha_socket_name].links[0].from_socket, shader.inputs["Alpha"])
             else:
@@ -256,5 +239,5 @@ def __switchToPrincipledBsdf(node_tree: NodeTree, node_basic: ShaderNodeGroup, s
                     node_tree.links.new(node_alpha.inputs[alpha_socket_name].links[0].from_socket, node_invert.inputs[1])
                     node_tree.links.new(node_invert.outputs[0], shader.inputs["Transmission"])
 
-    for l in output_links:
-        node_tree.links.new(shader.outputs[0], l.to_socket)
+    for link in output_links:
+        node_tree.links.new(shader.outputs[0], link.to_socket)

core/mmd/operators/material.py

@@ -1,22 +1,16 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
+
+from collections import defaultdict
 
 import bpy
-from bpy.props import BoolProperty, StringProperty, FloatProperty
-from bpy.types import Operator, Context, Object, Material
-
-from typing import Set, Dict, Any, List, Tuple, Optional, Union, cast
+from bpy.props import BoolProperty, StringProperty
+from bpy.types import Operator
 
 from .. import cycles_converter
 from ..core.exceptions import MaterialNotFoundError
 from ..core.material import FnMaterial
 from ..core.shader import _NodeGroupUtils
-from ....core.logging_setup import logger
-import traceback
 
 
 class ConvertMaterialsForCycles(Operator):
@@ -25,14 +19,14 @@ class ConvertMaterialsForCycles(Operator):
     bl_description = "Convert materials of selected objects for Cycles."
     bl_options = {"REGISTER", "UNDO"}
 
-    use_principled: BoolProperty(
+    use_principled: bpy.props.BoolProperty(
         name="Convert to Principled BSDF",
         description="Convert MMD shader nodes to Principled BSDF as well if enabled",
         default=False,
         options={"SKIP_SAVE"},
     )
 
-    clean_nodes: BoolProperty(
+    clean_nodes: bpy.props.BoolProperty(
         name="Clean Nodes",
         description="Remove redundant nodes as well if enabled. Disable it to keep node data.",
         default=False,
@@ -40,27 +34,22 @@ class ConvertMaterialsForCycles(Operator):
     )
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
-        return next((x for x in context.selected_objects if x.type == "MESH"), None) is not None
+    def poll(cls, context):
+        return any(x.type == "MESH" for x in context.selected_objects)
 
-    def draw(self, context: Context) -> None:
+    def draw(self, context):
         layout = self.layout
         layout.prop(self, "use_principled")
         layout.prop(self, "clean_nodes")
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         try:
             context.scene.render.engine = "CYCLES"
         except Exception:
-            logger.error(f"Failed to change to Cycles render engine: {traceback.format_exc()}")
             self.report({"ERROR"}, " * Failed to change to Cycles render engine.")
             return {"CANCELLED"}
-            
-        logger.info(f"Converting materials for Cycles with principled={self.use_principled}, clean_nodes={self.clean_nodes}")
         for obj in (x for x in context.selected_objects if x.type == "MESH"):
-            logger.debug(f"Converting materials for object: {obj.name}")
             cycles_converter.convertToCyclesShader(obj, use_principled=self.use_principled, clean_nodes=self.clean_nodes)
-            
         return {"FINISHED"}
 
 
@@ -70,21 +59,21 @@ class ConvertMaterials(Operator):
     bl_description = "Convert materials of selected objects."
     bl_options = {"REGISTER", "UNDO"}
 
-    use_principled: BoolProperty(
+    use_principled: bpy.props.BoolProperty(
         name="Convert to Principled BSDF",
         description="Convert MMD shader nodes to Principled BSDF as well if enabled",
         default=True,
         options={"SKIP_SAVE"},
     )
 
-    clean_nodes: BoolProperty(
+    clean_nodes: bpy.props.BoolProperty(
         name="Clean Nodes",
         description="Remove redundant nodes as well if enabled. Disable it to keep node data.",
         default=True,
         options={"SKIP_SAVE"},
     )
 
-    subsurface: FloatProperty(
+    subsurface: bpy.props.FloatProperty(
         name="Subsurface",
         default=0.001,
         soft_min=0.000,
@@ -94,41 +83,130 @@ class ConvertMaterials(Operator):
     )
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
-        return next((x for x in context.selected_objects if x.type == "MESH"), None) is not None
+    def poll(cls, context):
+        return any(x.type == "MESH" for x in context.selected_objects)
 
-    def execute(self, context: Context) -> Set[str]:
-        logger.info(f"Converting materials with principled={self.use_principled}, clean_nodes={self.clean_nodes}, subsurface={self.subsurface}")
+    def execute(self, context):
         for obj in context.selected_objects:
             if obj.type != "MESH":
                 continue
-            logger.debug(f"Converting materials for object: {obj.name}")
             cycles_converter.convertToBlenderShader(obj, use_principled=self.use_principled, clean_nodes=self.clean_nodes, subsurface=self.subsurface)
         return {"FINISHED"}
 
-class ConvertBSDFMaterials(Operator):
-    bl_idname = 'mmd_tools.convert_bsdf_materials'
-    bl_label = 'Convert Blender Materials'
-    bl_description = 'Convert materials of selected objects.'
-    bl_options = {'REGISTER', 'UNDO'}
+
+class MergeMaterials(Operator):
+    bl_idname = "mmd_tools.merge_materials"
+    bl_label = "Merge Materials"
+    bl_description = "Merge materials with the same texture in selected objects. Only merges materials with exactly one texture node. Materials with no texture or with multiple textures are not merged. Please convert to Blender materials first."
+    bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
-        return next((x for x in context.selected_objects if x.type == 'MESH'), None) is not None
+    def poll(cls, context):
+        return any(x.type == "MESH" for x in context.selected_objects)
 
-    def execute(self, context: Context) -> Set[str]:
-        logger.info("Converting BSDF materials to MMD shader")
+    def execute(self, context):
+        # Process all selected mesh objects
         for obj in context.selected_objects:
-            if obj.type != 'MESH':
+            if obj.type != "MESH":
+                continue
+
+            self.merge_materials_for_object(context, obj)
+
+        return {"FINISHED"}
+
+    def merge_materials_for_object(self, context, obj):
+        """Merge materials with same texture for a single object"""
+        if not obj.data.materials:
+            self.report({"INFO"}, f"Object '{obj.name}' has no materials")
+            return
+
+        # Map texture paths to material indices and names
+        texture_to_materials = defaultdict(list)
+
+        # Check each material
+        for i, material in enumerate(obj.data.materials):
+            # use_nodes is deprecated in 5.0 but always returns True, so check is safe
+            if not material or not material.use_nodes:
+                continue
+
+            # 1. Check texture node count (must be exactly 1)
+            texture_nodes = [node for node in material.node_tree.nodes if node.type == "TEX_IMAGE"]
+            if len(texture_nodes) != 1:
+                continue
+
+            # 2. Record texture path and material info
+            texture_node = texture_nodes[0]
+            if texture_node.image:
+                texture_path = bpy.path.abspath(texture_node.image.filepath)
+                texture_to_materials[texture_path].append({"index": i, "name": material.name})
+
+        # Find material groups that need merging
+        materials_to_merge = {path: materials for path, materials in texture_to_materials.items() if len(materials) > 1}
+
+        if not materials_to_merge:
+            self.report({"INFO"}, f"No materials to merge in object '{obj.name}'")
+            return
+
+        # Process each texture group
+        context.view_layer.objects.active = obj
+        bpy.ops.object.mode_set(mode="EDIT")
+        merge_details = []
+        for texture_path, materials in materials_to_merge.items():
+            # Use first material as target
+            target_material = materials[0]
+            target_index = target_material["index"]
+            target_name = target_material["name"]
+
+            source_materials = []
+
+            # Reassign faces from other materials to target material
+            for source_material in materials[1:]:
+                source_index = source_material["index"]
+                source_name = source_material["name"]
+                source_materials.append(source_name)
+
+                bpy.ops.mesh.select_all(action="DESELECT")
+                obj.active_material_index = source_index
+                bpy.ops.object.material_slot_select()
+                obj.active_material_index = target_index
+                bpy.ops.object.material_slot_assign()
+
+            # Record merge details
+            texture_name = bpy.path.basename(texture_path)
+            merge_details.append({"texture": texture_name, "target": target_name, "sources": source_materials})
+        bpy.ops.object.mode_set(mode="OBJECT")
+        bpy.ops.object.material_slot_remove_unused()
+
+        merged_count = sum(len(details["sources"]) for details in merge_details)
+        self.report({"INFO"}, f"Object '{obj.name}': Merged {merged_count} materials")
+
+        for details in merge_details:
+            sources_text = ", ".join(details["sources"])
+            self.report({"INFO"}, f"Same Texture '{details['texture']}': Merged materials [{sources_text}] into '{details['target']}'")
+
+
+class ConvertBSDFMaterials(Operator):
+    bl_idname = "mmd_tools.convert_bsdf_materials"
+    bl_label = "Convert Blender Materials"
+    bl_description = "Convert materials of selected objects."
+    bl_options = {"REGISTER", "UNDO"}
+
+    @classmethod
+    def poll(cls, context):
+        return any(x.type == "MESH" for x in context.selected_objects)
+
+    def execute(self, context):
+        for obj in context.selected_objects:
+            if obj.type != "MESH":
                 continue
-            logger.debug(f"Converting BSDF materials for object: {obj.name}")
             cycles_converter.convertToMMDShader(obj)
-        return {'FINISHED'}
+        return {"FINISHED"}
+
 
 class _OpenTextureBase:
     """Create a texture for mmd model material."""
 
-    bl_options: Set[str] = {"REGISTER", "UNDO", "INTERNAL"}
+    bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
     filepath: StringProperty(
         name="File Path",
@@ -142,7 +220,7 @@ class _OpenTextureBase:
         options={"HIDDEN"},
     )
 
-    def invoke(self, context: Context, event: Any) -> Set[str]:
+    def invoke(self, context, event):
         context.window_manager.fileselect_add(self)
         return {"RUNNING_MODAL"}
 
@@ -152,13 +230,8 @@ class OpenTexture(Operator, _OpenTextureBase):
     bl_label = "Open Texture"
     bl_description = "Create main texture of active material"
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         mat = context.active_object.active_material
-        if not mat:
-            logger.error("No active material found")
-            return {"CANCELLED"}
-            
-        logger.info(f"Creating texture for material: {mat.name} from {self.filepath}")
         fnMat = FnMaterial(mat)
         fnMat.create_texture(self.filepath)
         return {"FINISHED"}
@@ -172,13 +245,8 @@ class RemoveTexture(Operator):
     bl_description = "Remove main texture of active material"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         mat = context.active_object.active_material
-        if not mat:
-            logger.error("No active material found")
-            return {"CANCELLED"}
-            
-        logger.info(f"Removing texture from material: {mat.name}")
         fnMat = FnMaterial(mat)
         fnMat.remove_texture()
         return {"FINISHED"}
@@ -191,13 +259,8 @@ class OpenSphereTextureSlot(Operator, _OpenTextureBase):
     bl_label = "Open Sphere Texture"
     bl_description = "Create sphere texture of active material"
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         mat = context.active_object.active_material
-        if not mat:
-            logger.error("No active material found")
-            return {"CANCELLED"}
-            
-        logger.info(f"Creating sphere texture for material: {mat.name} from {self.filepath}")
         fnMat = FnMaterial(mat)
         fnMat.create_sphere_texture(self.filepath, context.active_object)
         return {"FINISHED"}
@@ -211,13 +274,8 @@ class RemoveSphereTexture(Operator):
     bl_description = "Remove sphere texture of active material"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         mat = context.active_object.active_material
-        if not mat:
-            logger.error("No active material found")
-            return {"CANCELLED"}
-            
-        logger.info(f"Removing sphere texture from material: {mat.name}")
         fnMat = FnMaterial(mat)
         fnMat.remove_sphere_texture()
         return {"FINISHED"}
@@ -230,21 +288,17 @@ class MoveMaterialUp(Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
+    def poll(cls, context):
         obj = context.active_object
-        valid_mesh = obj and obj.type == "MESH" and obj.mmd_type == "NONE"
-        return bool(valid_mesh and obj.active_material_index > 0)
+        return obj is not None and obj.type == "MESH" and obj.mmd_type == "NONE" and obj.active_material_index > 0
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         current_idx = obj.active_material_index
         prev_index = current_idx - 1
-        
-        logger.debug(f"Moving material {current_idx} up to position {prev_index} for object {obj.name}")
         try:
             FnMaterial.swap_materials(obj, current_idx, prev_index, reverse=True, swap_slots=True)
         except MaterialNotFoundError:
-            logger.error(f"Materials not found for indices {current_idx} and {prev_index}")
             self.report({"ERROR"}, "Materials not found")
             return {"CANCELLED"}
         obj.active_material_index = prev_index
@@ -259,21 +313,17 @@ class MoveMaterialDown(Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
+    def poll(cls, context):
         obj = context.active_object
-        valid_mesh = obj and obj.type == "MESH" and obj.mmd_type == "NONE"
-        return bool(valid_mesh and obj.active_material_index < len(obj.material_slots) - 1)
+        return obj is not None and obj.type == "MESH" and obj.mmd_type == "NONE" and obj.active_material_index < len(obj.material_slots) - 1
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         current_idx = obj.active_material_index
         next_index = current_idx + 1
-        
-        logger.debug(f"Moving material {current_idx} down to position {next_index} for object {obj.name}")
         try:
             FnMaterial.swap_materials(obj, current_idx, next_index, reverse=True, swap_slots=True)
         except MaterialNotFoundError:
-            logger.error(f"Materials not found for indices {current_idx} and {next_index}")
             self.report({"ERROR"}, "Materials not found")
             return {"CANCELLED"}
         obj.active_material_index = next_index
@@ -296,31 +346,26 @@ class EdgePreviewSetup(Operator):
         default="CREATE",
     )
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         from ..core.model import FnModel
 
         root = FnModel.find_root_object(context.active_object)
         if root is None:
-            logger.error("No MMD model root found")
             self.report({"ERROR"}, "Select a MMD model")
             return {"CANCELLED"}
 
         if self.action == "CLEAN":
-            logger.info(f"Cleaning toon edge for model: {root.name}")
             for obj in FnModel.iterate_mesh_objects(root):
                 self.__clean_toon_edge(obj)
         else:
             from ..bpyutils import Props
 
-            logger.info(f"Creating toon edge for model: {root.name}")
             scale = 0.2 * getattr(root, Props.empty_display_size)
             counts = sum(self.__create_toon_edge(obj, scale) for obj in FnModel.iterate_mesh_objects(root))
-            logger.info(f"Created {counts} toon edge(s)")
             self.report({"INFO"}, "Created %d toon edge(s)" % counts)
         return {"FINISHED"}
 
-    def __clean_toon_edge(self, obj: Object) -> None:
-        logger.debug(f"Cleaning toon edge for object: {obj.name}")
+    def __clean_toon_edge(self, obj):
         if "mmd_edge_preview" in obj.modifiers:
             obj.modifiers.remove(obj.modifiers["mmd_edge_preview"])
 
@@ -329,8 +374,7 @@ class EdgePreviewSetup(Operator):
 
         FnMaterial.clean_materials(obj, can_remove=lambda m: m and m.name.startswith("mmd_edge."))
 
-    def __create_toon_edge(self, obj: Object, scale: float = 1.0) -> int:
-        logger.debug(f"Creating toon edge for object: {obj.name} with scale {scale}")
+    def __create_toon_edge(self, obj, scale=1.0):
         self.__clean_toon_edge(obj)
         materials = obj.data.materials
         material_offset = len(materials)
@@ -355,10 +399,10 @@ class EdgePreviewSetup(Operator):
             mod.vertex_group = "mmd_edge_preview"
         return len(materials) - material_offset
 
-    def __create_edge_preview_group(self, obj: Object) -> None:
+    def __create_edge_preview_group(self, obj):
         vertices, materials = obj.data.vertices, obj.data.materials
         weight_map = {i: m.mmd_material.edge_weight for i, m in enumerate(materials) if m}
-        scale_map: Dict[int, float] = {}
+        scale_map = {}
         vg_scale_index = obj.vertex_groups.find("mmd_edge_scale")
         if vg_scale_index >= 0:
             scale_map = {v.index: g.weight for v in vertices for g in v.groups if g.group == vg_scale_index}
@@ -367,7 +411,7 @@ class EdgePreviewSetup(Operator):
             weight = scale_map.get(i, 1.0) * weight_map.get(mi, 1.0) * 0.02
             vg_edge_preview.add(index=[i], weight=weight, type="REPLACE")
 
-    def __get_edge_material(self, mat_name: str, edge_color: Tuple[float, float, float, float], materials: List[Material]) -> Material:
+    def __get_edge_material(self, mat_name, edge_color, materials):
         if mat_name in materials:
             return materials[mat_name]
         mat = bpy.data.materials.get(mat_name, None)
@@ -385,7 +429,7 @@ class EdgePreviewSetup(Operator):
         self.__make_shader(mat)
         return mat
 
-    def __make_shader(self, m: Material) -> None:
+    def __make_shader(self, m):
         m.use_nodes = True
         nodes, links = m.node_tree.nodes, m.node_tree.links
 
@@ -406,7 +450,7 @@ class EdgePreviewSetup(Operator):
         node_shader.inputs["Color"].default_value = m.mmd_material.edge_color
         node_shader.inputs["Alpha"].default_value = m.mmd_material.edge_color[3]
 
-    def __get_edge_preview_shader(self) -> bpy.types.NodeTree:
+    def __get_edge_preview_shader(self):
         group_name = "MMDEdgePreview"
         shader = bpy.data.node_groups.get(group_name, None) or bpy.data.node_groups.new(name=group_name, type="ShaderNodeTree")
         if len(shader.nodes):
@@ -414,8 +458,8 @@ class EdgePreviewSetup(Operator):
 
         ng = _NodeGroupUtils(shader)
 
-        node_input = ng.new_node("NodeGroupInput", (-5, 0))
-        node_output = ng.new_node("NodeGroupOutput", (3, 0))
+        ng.new_node("NodeGroupInput", (-5, 0))
+        ng.new_node("NodeGroupOutput", (3, 0))
 
         ############################################################################
         node_color = ng.new_node("ShaderNodeMixRGB", (-1, -1.5))

core/mmd/operators/misc.py

@@ -1,22 +1,15 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
 import re
-from typing import List, Dict, Any, Set, Optional, Tuple, Union, Type
 
 import bpy
-from bpy.types import Context, Object, Operator, ShapeKey
 
 from .. import utils
 from ..bpyutils import FnContext, FnObject
 from ..core.bone import FnBone
 from ..core.model import FnModel, Model
 from ..core.morph import FnMorph
-from ....core.logging_setup import logger
 
 
 class SelectObject(bpy.types.Operator):
@@ -32,8 +25,7 @@ class SelectObject(bpy.types.Operator):
         options={"HIDDEN", "SKIP_SAVE"},
     )
 
-    def execute(self, context: Context) -> Set[str]:
-        logger.debug(f"Selecting object: {self.name}")
+    def execute(self, context):
         utils.selectAObject(context.scene.objects[self.name])
         return {"FINISHED"}
 
@@ -47,43 +39,41 @@ class MoveObject(bpy.types.Operator, utils.ItemMoveOp):
     __PREFIX_REGEXP = re.compile(r"(?P<prefix>[0-9A-Z]{3}_)(?P<name>.*)")
 
     @classmethod
-    def set_index(cls, obj: Object, index: int) -> None:
+    def set_index(cls, obj, index):
         m = cls.__PREFIX_REGEXP.match(obj.name)
         name = m.group("name") if m else obj.name
-        obj.name = "%s_%s" % (utils.int2base(index, 36, 3), name)
+        obj.name = f"{utils.int2base(index, 36, 3)}_{name}"
 
     @classmethod
-    def get_name(cls, obj: Object, prefix: Optional[str] = None) -> str:
+    def get_name(cls, obj, prefix=None):
         m = cls.__PREFIX_REGEXP.match(obj.name)
         name = m.group("name") if m else obj.name
         return name[len(prefix) :] if prefix and name.startswith(prefix) else name
 
     @classmethod
-    def normalize_indices(cls, objects: List[Object]) -> None:
+    def normalize_indices(cls, objects):
         for i, x in enumerate(objects):
             cls.set_index(x, i)
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
+    def poll(cls, context):
         return context.active_object is not None
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         objects = self.__get_objects(obj)
         if obj not in objects:
-            logger.error(f'Cannot move object "{obj.name}"')
             self.report({"ERROR"}, f'Can not move object "{obj.name}"')
             return {"CANCELLED"}
 
         objects.sort(key=lambda x: x.name)
-        logger.debug(f"Moving object {obj.name} {self.type}")
         self.move(objects, objects.index(obj), self.type)
         self.normalize_indices(objects)
         return {"FINISHED"}
 
-    def __get_objects(self, obj: Object) -> Any:
+    def __get_objects(self, obj):
         class __MovableList(list):
-            def move(self, index_old: int, index_new: int) -> None:
+            def move(self, index_old, index_new):
                 item = self[index_old]
                 self.remove(item)
                 self.insert(index_new, item)
@@ -108,43 +98,40 @@ class CleanShapeKeys(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
+    def poll(cls, context):
         return any(o.type == "MESH" for o in context.selected_objects)
 
     @staticmethod
-    def __can_remove(key_block: ShapeKey) -> bool:
+    def __can_remove(key_block):
         if key_block.relative_key == key_block:
             return False  # Basis
-        for v0, v1 in zip(key_block.relative_key.data, key_block.data):
+        for v0, v1 in zip(key_block.relative_key.data, key_block.data, strict=False):
             if v0.co != v1.co:
                 return False
         return True
 
-    def __shape_key_clean(self, obj: Object, key_blocks: List[ShapeKey]) -> None:
+    def __shape_key_clean(self, obj, key_blocks):
         for kb in key_blocks:
             if self.__can_remove(kb):
-                logger.debug(f"Removing unused shape key: {kb.name} from {obj.name}")
                 FnObject.mesh_remove_shape_key(obj, kb)
         if len(key_blocks) == 1:
-            logger.debug(f"Removing single shape key: {key_blocks[0].name} from {obj.name}")
             FnObject.mesh_remove_shape_key(obj, key_blocks[0])
 
-    def execute(self, context: Context) -> Set[str]:
-        logger.info("Cleaning shape keys for selected objects")
-        obj: Object
+    def execute(self, context):
+        obj: bpy.types.Object
         for obj in context.selected_objects:
             if obj.type != "MESH" or obj.data.shape_keys is None:
                 continue
             if not obj.data.shape_keys.use_relative:
                 continue  # not be considered yet
-            logger.debug(f"Processing shape keys for {obj.name}")
             self.__shape_key_clean(obj, obj.data.shape_keys.key_blocks)
         return {"FINISHED"}
 
 
 class SeparateByMaterials(bpy.types.Operator):
     bl_idname = "mmd_tools.separate_by_materials"
-    bl_label = "Separate By Materials"
+    bl_label = "Sep by Mat(High Risk)"
+    bl_description = "Separate by Materials (High Risk)\nSeparate the mesh into multiple objects based on materials.\nHIGH RISK & BUGGY: This operation is not reversible and may cause various issues. It splits adjacent geometry by material, and merging later will not reconnect shared edges.\nKnown issues include potential mesh corruption, UV mapping problems, and other unpredictable behaviors. Use with extreme caution and backup your work first."
     bl_options = {"REGISTER", "UNDO"}
 
     clean_shape_keys: bpy.props.BoolProperty(
@@ -153,26 +140,32 @@ class SeparateByMaterials(bpy.types.Operator):
         default=True,
     )
 
-    @classmethod
-    def poll(cls, context: Context) -> bool:
-        obj = context.active_object
-        return obj and obj.type == "MESH"
+    keep_normals: bpy.props.BoolProperty(
+        name="Keep Normals",
+        default=True,
+    )
 
-    def __separate_by_materials(self, obj: Object) -> None:
-        logger.info(f"Separating {obj.name} by materials")
-        utils.separateByMaterials(obj)
+    @classmethod
+    def poll(cls, context):
+        obj = context.active_object
+        return obj is not None and obj.type == "MESH"
+
+    def __separate_by_materials(self, obj):
+        utils.separateByMaterials(obj, self.keep_normals)
         if self.clean_shape_keys:
-            logger.debug("Cleaning shape keys after separation")
             bpy.ops.mmd_tools.clean_shape_keys()
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
+
+        # Sep by Mat crashes Blender if used after morph assembly
+        rig = Model(root)
+        rig.morph_slider.unbind()
+
         if root is None:
-            logger.debug("No root object found, separating single object")
             self.__separate_by_materials(obj)
         else:
-            logger.debug(f"Root object found: {root.name}, preparing for separation")
             bpy.ops.mmd_tools.clear_temp_materials()
             bpy.ops.mmd_tools.clear_uv_morph_view()
 
@@ -185,11 +178,9 @@ class SeparateByMaterials(bpy.types.Operator):
                 if len(mesh.data.materials) > 0:
                     mat = mesh.data.materials[0]
                     idx = mat_names.index(getattr(mat, "name", None))
-                    logger.debug(f"Setting index {idx} for mesh {mesh.name}")
                     MoveObject.set_index(mesh, idx)
 
             for morph in root.mmd_root.material_morphs:
-                logger.debug(f"Updating material morph: {morph.name}")
                 FnMorph(morph, rig).update_mat_related_mesh()
         utils.clearUnusedMeshes()
         return {"FINISHED"}
@@ -207,15 +198,13 @@ class JoinMeshes(bpy.types.Operator):
         default=True,
     )
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         if root is None:
-            logger.error("No MMD model found")
             self.report({"ERROR"}, "Select a MMD model")
             return {"CANCELLED"}
 
-        logger.info(f"Joining meshes for model: {root.name}")
         bpy.ops.mmd_tools.clear_temp_materials()
         bpy.ops.mmd_tools.clear_uv_morph_view()
 
@@ -223,11 +212,9 @@ class JoinMeshes(bpy.types.Operator):
         rig = Model(root)
         meshes_list = sorted(rig.meshes(), key=lambda x: x.name)
         if not meshes_list:
-            logger.error("No meshes found in the model")
             self.report({"ERROR"}, "The model does not have any meshes")
             return {"CANCELLED"}
         active_mesh = meshes_list[0]
-        logger.debug(f"Found {len(meshes_list)} meshes, using {active_mesh.name} as active")
 
         FnContext.select_objects(context, *meshes_list)
         FnContext.set_active_object(context, active_mesh)
@@ -236,19 +223,15 @@ class JoinMeshes(bpy.types.Operator):
         for m in meshes_list[1:]:
             for mat in m.data.materials:
                 if mat not in active_mesh.data.materials[:]:
-                    logger.debug(f"Adding material {mat.name} to active mesh")
                     active_mesh.data.materials.append(mat)
 
         # Join selected meshes
-        logger.debug("Joining meshes")
         bpy.ops.object.join()
 
         if self.sort_shape_keys:
-            logger.debug("Sorting shape keys")
             FnMorph.fixShapeKeyOrder(active_mesh, root.mmd_root.vertex_morphs.keys())
             active_mesh.active_shape_key_index = 0
         for morph in root.mmd_root.material_morphs:
-            logger.debug(f"Updating material morph: {morph.name}")
             FnMorph(morph, rig).update_mat_related_mesh(active_mesh)
         utils.clearUnusedMeshes()
         return {"FINISHED"}
@@ -262,20 +245,17 @@ class AttachMeshesToMMD(bpy.types.Operator):
 
     add_armature_modifier: bpy.props.BoolProperty(default=True)
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context: bpy.types.Context):
         root = FnModel.find_root_object(context.active_object)
         if root is None:
-            logger.error("No MMD model found")
             self.report({"ERROR"}, "Select a MMD model")
             return {"CANCELLED"}
 
         armObj = FnModel.find_armature_object(root)
         if armObj is None:
-            logger.error("Model armature not found")
             self.report({"ERROR"}, "Model Armature not found")
             return {"CANCELLED"}
 
-        logger.info(f"Attaching meshes to model: {root.name}")
         FnModel.attach_mesh_objects(root, context.visible_objects, self.add_armature_modifier)
         return {"FINISHED"}
 
@@ -295,18 +275,18 @@ class ChangeMMDIKLoopFactor(bpy.types.Operator):
     )
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
-        return FnModel.find_root_object(context.active_object) is not None
+    def poll(cls, context):
+        root = FnModel.find_root_object(context.active_object)
+        return root is not None
 
-    def invoke(self, context: Context, event: Any) -> Set[str]:
+    def invoke(self, context, event):
         root_object = FnModel.find_root_object(context.active_object)
         self.mmd_ik_loop_factor = root_object.mmd_root.ik_loop_factor
         vm = context.window_manager
         return vm.invoke_props_dialog(self)
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         root_object = FnModel.find_root_object(context.active_object)
-        logger.info(f"Changing IK loop factor to {self.mmd_ik_loop_factor} for model: {root_object.name}")
         FnModel.change_mmd_ik_loop_factor(root_object, self.mmd_ik_loop_factor)
         return {"FINISHED"}
 
@@ -318,22 +298,21 @@ class RecalculateBoneRoll(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
+    def poll(cls, context):
         obj = context.active_object
-        return obj and obj.type == "ARMATURE"
+        return obj is not None and obj.type == "ARMATURE"
 
-    def invoke(self, context: Context, event: Any) -> Set[str]:
+    def invoke(self, context, event):
         vm = context.window_manager
         return vm.invoke_props_dialog(self)
 
-    def draw(self, context: Context) -> None:
+    def draw(self, context):
         layout = self.layout
         c = layout.column()
         c.label(text="This operation will break existing f-curve/action.", icon="QUESTION")
         c.label(text="Click [OK] to run the operation.")
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         arm = context.active_object
-        logger.info(f"Recalculating bone roll for armature: {arm.name}")
         FnBone.apply_auto_bone_roll(arm)
         return {"FINISHED"}

core/mmd/operators/model_edit.py

@@ -1,32 +1,27 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2022 MMD Tools authors
+# This file is part of MMD Tools.
 
 import itertools
 from operator import itemgetter
-from typing import Dict, List, Optional, Set, Tuple, Any
+from typing import Dict, List, Optional, Set
 
 import bmesh
 import bpy
 import numpy as np
-import numpy.typing as npt
-from bpy.types import Context, Object, Operator, EditBone, Mesh, Armature
+from mathutils import Matrix
 
-from ..bpyutils import FnContext
+from ..bpyutils import FnContext, select_object
 from ..core.model import FnModel, Model
-from ....core.logging_setup import logger
 
 
-class MessageException(Exception):
-    """Class for error with message."""
+class NoModelSelectedError(Exception):
+    """Raised when no MMD model is selected."""
 
 
 class ModelJoinByBonesOperator(bpy.types.Operator):
     bl_idname = "mmd_tools.model_join_by_bones"
     bl_label = "Model Join by Bones"
+    bl_description = "Join multiple MMD models into one.\n\nWARNING: To align models before joining, only adjust the root (cross under the model) transformation. Do not move armatures, meshes, rigid bodies, or joints directly as they will not move together.\n\nIMPORTANT: Don't use any of the 'Assembly' functions before using this function. This function requires the models to be in a clean state."
     bl_options = {"REGISTER", "UNDO"}
 
     join_type: bpy.props.EnumProperty(
@@ -39,8 +34,8 @@ class ModelJoinByBonesOperator(bpy.types.Operator):
     )
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
-        active_object: Optional[Object] = context.active_object
+    def poll(cls, context: bpy.types.Context):
+        active_object: Optional[bpy.types.Object] = context.active_object
 
         if context.mode != "POSE":
             return False
@@ -56,22 +51,19 @@ class ModelJoinByBonesOperator(bpy.types.Operator):
 
         return len(context.selected_pose_bones) > 0
 
-    def invoke(self, context: Context, event: Any) -> Set[str]:
+    def invoke(self, context, event):
         return context.window_manager.invoke_props_dialog(self)
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context: bpy.types.Context):
         try:
-            logger.info("Starting model join by bones operation")
             self.join(context)
-            logger.info("Model join by bones completed successfully")
-        except MessageException as ex:
-            logger.error(f"Model join by bones failed: {str(ex)}")
+        except NoModelSelectedError as ex:
             self.report(type={"ERROR"}, message=str(ex))
             return {"CANCELLED"}
 
         return {"FINISHED"}
 
-    def join(self, context: Context) -> None:
+    def join(self, context: bpy.types.Context):
         bpy.ops.object.mode_set(mode="OBJECT")
 
         parent_root_object = FnModel.find_root_object(context.active_object)
@@ -79,23 +71,35 @@ class ModelJoinByBonesOperator(bpy.types.Operator):
         child_root_objects.remove(parent_root_object)
 
         if parent_root_object is None or len(child_root_objects) == 0:
-            raise MessageException("No MMD Models selected")
+            raise NoModelSelectedError("No MMD Models selected")
 
-        logger.debug(f"Joining {len(child_root_objects)} models into parent model: {parent_root_object.name}")
-        with FnContext.temp_override_active_layer_collection(context, parent_root_object):
+        # Save original active_layer_collection
+        orig_active_layer_collection = context.view_layer.active_layer_collection
+
+        # Find layer collection containing parent_root_object and set it as active
+        layer_collection = FnContext.find_user_layer_collection_by_object(context, parent_root_object)
+        if layer_collection:
+            context.view_layer.active_layer_collection = layer_collection
+
+        # Execute the join operation
         FnModel.join_models(parent_root_object, child_root_objects)
 
+        # Restore original active_layer_collection
+        context.view_layer.active_layer_collection = orig_active_layer_collection
+
+        bpy.ops.object.mode_set(mode="OBJECT")
+        parent_armature_object = FnModel.find_armature_object(parent_root_object)
+        FnContext.set_active_and_select_single_object(context, parent_armature_object)
         bpy.ops.object.mode_set(mode="EDIT")
         bpy.ops.armature.parent_set(type="OFFSET")
 
         # Connect child bones
         if self.join_type == "CONNECTED":
-            parent_edit_bone: EditBone = context.active_bone
-            child_edit_bones: Set[EditBone] = set(context.selected_bones)
+            parent_edit_bone: bpy.types.EditBone = context.active_bone
+            child_edit_bones: Set[bpy.types.EditBone] = set(context.selected_bones)
             child_edit_bones.remove(parent_edit_bone)
 
-            logger.debug(f"Connecting {len(child_edit_bones)} child bones to parent bone: {parent_edit_bone.name}")
-            child_edit_bone: EditBone
+            child_edit_bone: bpy.types.EditBone
             for child_edit_bone in child_edit_bones:
                 child_edit_bone.use_connect = True
 
@@ -105,6 +109,7 @@ class ModelJoinByBonesOperator(bpy.types.Operator):
 class ModelSeparateByBonesOperator(bpy.types.Operator):
     bl_idname = "mmd_tools.model_separate_by_bones"
     bl_label = "Model Separate by Bones"
+    bl_description = "Separate MMD model into multiple models based on selected bones.\n\nWARNING: This operation will split meshes, armatures, rigid bodies and joints. To move models before separating, only adjust the root (cross under the model) transformation. Do not move armatures, meshes, rigid bodies, or joints directly before separating as they will not move together.\n\nIMPORTANT: Don't use any of the 'Assembly' functions before using this function. This function requires the model to be in a clean state."
     bl_options = {"REGISTER", "UNDO"}
 
     separate_armature: bpy.props.BoolProperty(name="Separate Armature", default=True)
@@ -120,8 +125,8 @@ class ModelSeparateByBonesOperator(bpy.types.Operator):
     )
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
-        active_object: Optional[Object] = context.active_object
+    def poll(cls, context: bpy.types.Context):
+        active_object: Optional[bpy.types.Object] = context.active_object
 
         if context.mode != "POSE":
             return False
@@ -137,155 +142,183 @@ class ModelSeparateByBonesOperator(bpy.types.Operator):
 
         return len(context.selected_pose_bones) > 0
 
-    def invoke(self, context: Context, event: Any) -> Set[str]:
+    def invoke(self, context, event):
         return context.window_manager.invoke_props_dialog(self)
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context: bpy.types.Context):
         try:
-            logger.info("Starting model separate by bones operation")
             self.separate(context)
-            logger.info("Model separate by bones completed successfully")
-        except MessageException as ex:
-            logger.error(f"Model separate by bones failed: {str(ex)}")
+        except NoModelSelectedError as ex:
             self.report(type={"ERROR"}, message=str(ex))
             return {"CANCELLED"}
 
         return {"FINISHED"}
 
-    def separate(self, context: Context) -> None:
+    def separate(self, context: bpy.types.Context):
         weight_threshold: float = self.weight_threshold
         mmd_scale = 0.08
 
-        target_armature_object: Object = context.active_object
-        logger.debug(f"Target armature: {target_armature_object.name}")
+        target_armature_object: bpy.types.Object = context.active_object
 
         bpy.ops.object.mode_set(mode="EDIT")
-        root_bones: Set[EditBone] = set(context.selected_bones)
-        logger.debug(f"Selected root bones: {len(root_bones)}")
-
+        root_bones: Set[bpy.types.EditBone] = set(context.selected_bones)
         if self.include_descendant_bones:
-            logger.debug("Including descendant bones")
+            original_active_bone = context.active_bone
             for edit_bone in root_bones:
-                with context.temp_override(active_bone=edit_bone):
+                context.active_object.data.edit_bones.active = edit_bone
                 bpy.ops.armature.select_similar(type="CHILDREN", threshold=0.1)
+            self._select_related_ik_bones(target_armature_object)
+            if original_active_bone:
+                context.active_object.data.edit_bones.active = original_active_bone
 
-        separate_bones: Dict[str, EditBone] = {b.name: b for b in context.selected_bones}
-        deform_bones: Dict[str, EditBone] = {b.name: b for b in target_armature_object.data.edit_bones if b.use_deform}
-        logger.debug(f"Total bones to separate: {len(separate_bones)}")
-
-        mmd_root_object: Object = FnModel.find_root_object(context.active_object)
+        separate_bones: Dict[str, bpy.types.EditBone] = {b.name: b for b in context.selected_bones}
+        deform_bones: Dict[str, bpy.types.EditBone] = {b.name: b for b in target_armature_object.data.edit_bones if b.use_deform}
+        mmd_root_object: bpy.types.Object = FnModel.find_root_object(context.active_object)
         mmd_model = Model(mmd_root_object)
-        mmd_model_mesh_objects: List[Object] = list(mmd_model.meshes())
-        logger.debug(f"Found {len(mmd_model_mesh_objects)} mesh objects in model")
-
-        mesh_selection_result = self.select_weighted_vertices(mmd_model_mesh_objects, separate_bones, deform_bones, weight_threshold)
-        mmd_model_mesh_objects = list(mesh_selection_result.keys())
-        logger.debug(f"Selected {len(mmd_model_mesh_objects)} mesh objects with weighted vertices")
-
-        # separate armature bones
-        separate_armature_object: Optional[Object]
-        if self.separate_armature:
-            logger.debug("Separating armature")
-            target_armature_object.select_set(True)
-            bpy.ops.armature.separate()
-            separate_armature_object = next(iter([a for a in context.selected_objects if a != target_armature_object]), None)
-            if separate_armature_object:
-                logger.debug(f"Created separate armature: {separate_armature_object.name}")
+        mmd_model_mesh_objects: List[bpy.types.Object] = list(mmd_model.meshes())
+        mmd_model_mesh_objects = list(self._select_weighted_vertices(mmd_model_mesh_objects, separate_bones, deform_bones, weight_threshold).keys())
         bpy.ops.object.mode_set(mode="OBJECT")
 
-        # collect separate rigid bodies
-        separate_rigid_bodies: Set[Object] = {rigid_body_object for rigid_body_object in mmd_model.rigidBodies() if rigid_body_object.mmd_rigid.bone in separate_bones}
-        logger.debug(f"Found {len(separate_rigid_bodies)} rigid bodies to separate")
+        # Store original transform matrix for root object
+        original_matrix_world = mmd_root_object.matrix_world.copy()
+        mmd_root_object.matrix_world = Matrix.Identity(4)
+
+        # Reset object visibility
+        FnContext.set_active_and_select_single_object(context, mmd_root_object)
+        bpy.ops.mmd_tools.reset_object_visibility()
+
+        # Clean additional transform
+        FnContext.set_active_and_select_single_object(context, mmd_root_object)
+        bpy.ops.mmd_tools.clean_additional_transform()
+
+        # Create new separate model first
+        separate_model: Model = Model.create(mmd_root_object.mmd_root.name, mmd_root_object.mmd_root.name_e, mmd_scale, obj_name=mmd_root_object.name, add_root_bone=False)
+        separate_model.initialDisplayFrames()
+        separate_root_object = separate_model.rootObject()
+        separate_root_object.matrix_world = mmd_root_object.matrix_world
+        separate_model_armature_object = separate_model.armature()
+
+        # Now separate armature bones from original model
+        separate_armature_object: Optional[bpy.types.Object] = None
+        if self.separate_armature:
+            FnContext.set_active_and_select_single_object(context, target_armature_object)
+            bpy.ops.object.mode_set(mode="EDIT")
+
+            # Re-select the bones that should be separated (they might have been deselected)
+            for bone_name in separate_bones.keys():
+                if bone_name in target_armature_object.data.edit_bones:
+                    target_armature_object.data.edit_bones[bone_name].select = True
+
+            bpy.ops.armature.separate()
+            separate_armature_object = next(iter([a for a in context.selected_objects if a != target_armature_object and a.type == "ARMATURE"]), None)
+        bpy.ops.object.mode_set(mode="OBJECT")
+
+        # Collect separate rigid bodies
+        separate_rigid_bodies: Set[bpy.types.Object] = {rigid_body_object for rigid_body_object in mmd_model.rigidBodies() if rigid_body_object.mmd_rigid.bone in separate_bones}
 
         boundary_joint_owner_condition = any if self.boundary_joint_owner == "DESTINATION" else all
 
-        # collect separate joints
-        separate_joints: Set[Object] = {
+        # Collect separate joints
+        separate_joints: Set[bpy.types.Object] = {
             joint_object
             for joint_object in mmd_model.joints()
             if boundary_joint_owner_condition(
                 [
                     joint_object.rigid_body_constraint.object1 in separate_rigid_bodies,
                     joint_object.rigid_body_constraint.object2 in separate_rigid_bodies,
-                ]
+                ],
             )
         }
-        logger.debug(f"Found {len(separate_joints)} joints to separate")
 
-        separate_mesh_objects: Set[Object]
-        model2separate_mesh_objects: Dict[Object, Object]
-        if len(mmd_model_mesh_objects) == 0:
-            logger.debug("No mesh objects to separate")
-            separate_mesh_objects = set()
-            model2separate_mesh_objects = dict()
+        separate_mesh_objects: List[bpy.types.Object] = []
+        model2separate_mesh_objects: Dict[bpy.types.Object, bpy.types.Object] = {}
+        if len(mmd_model_mesh_objects) > 0:
+            # Find a single unique attribute name that doesn't conflict with any existing attributes.
+            all_attribute_names = {attr.name for obj in mmd_model_mesh_objects for attr in obj.data.attributes}
+            temp_normal_name = "mmd_temp_normal"
+            i = 0
+            while temp_normal_name in all_attribute_names:
+                temp_normal_name = f"mmd_temp_normal.{i:03d}"
+                i += 1
+
+            # Backup custom normals to the unique temporary attribute.
+            for mesh_obj in mmd_model_mesh_objects:
+                mesh_data = mesh_obj.data
+                existing_custom_normal = mesh_data.attributes.get("custom_normal")
+                if not existing_custom_normal:
+                    continue
+
+                if existing_custom_normal.data_type == "INT16_2D":
+                    normals_data = np.empty(len(mesh_data.loops) * 2, dtype=np.int16)
+                    existing_custom_normal.data.foreach_get("value", normals_data)
+                    temp_normal_attr = mesh_data.attributes.new(temp_normal_name, "INT16_2D", "CORNER")
+                    temp_normal_attr.data.foreach_set("value", normals_data)
                 else:
-            # select meshes
-            logger.debug("Selecting meshes for separation")
-            obj: Object
+                    raise TypeError(f"Unsupported custom_normal data type: '{existing_custom_normal.data_type}'. Supported types: 'INT16_2D'")
+
+            # Select meshes
+            obj: bpy.types.Object
             for obj in context.view_layer.objects:
                 obj.select_set(obj in mmd_model_mesh_objects)
             context.view_layer.objects.active = mmd_model_mesh_objects[0]
 
-            # separate mesh by selected vertices
-            logger.debug("Separating meshes by selected vertices")
+            # Separate mesh by selected vertices
             bpy.ops.object.mode_set(mode="EDIT")
             bpy.ops.mesh.separate(type="SELECTED")
-            separate_mesh_objects: List[Object] = [m for m in context.selected_objects if m.type == "MESH" and m not in mmd_model_mesh_objects]
+            separate_mesh_objects = [m for m in context.selected_objects if m.type == "MESH" and m not in mmd_model_mesh_objects]
             bpy.ops.object.mode_set(mode="OBJECT")
-            logger.debug(f"Created {len(separate_mesh_objects)} separate mesh objects")
 
-            model2separate_mesh_objects = dict(zip(mmd_model_mesh_objects, separate_mesh_objects))
+            model2separate_mesh_objects = dict(zip(mmd_model_mesh_objects, separate_mesh_objects, strict=False))
 
-        logger.debug(f"Creating new model with scale {mmd_scale}")
-        separate_model: Model = Model.create(mmd_root_object.mmd_root.name, mmd_root_object.mmd_root.name_e, mmd_scale, add_root_bone=False)
+            # Restore normal data for all meshes (original and separated)
+            all_mesh_objects = list(mmd_model_mesh_objects) + list(separate_mesh_objects)
+            for mesh_obj in all_mesh_objects:
+                mesh_data = mesh_obj.data
+                temp_normal_attr = mesh_data.attributes.get(temp_normal_name)
+                if not temp_normal_attr:
+                    continue
 
-        separate_model.initialDisplayFrames()
-        separate_root_object = separate_model.rootObject()
-        separate_root_object.matrix_world = mmd_root_object.matrix_world
-        separate_model_armature_object = separate_model.armature()
-        logger.debug(f"Created separate model with root: {separate_root_object.name}")
+                try:
+                    if temp_normal_attr.data_type == "INT16_2D":
+                        normals_data = np.empty(len(mesh_data.loops) * 2, dtype=np.int16)
+                        temp_normal_attr.data.foreach_get("value", normals_data)
+                        custom_normal_attr = mesh_data.attributes.get("custom_normal")
+                        if not custom_normal_attr:
+                            custom_normal_attr = mesh_data.attributes.new("custom_normal", "INT16_2D", "CORNER")
+                        custom_normal_attr.data.foreach_set("value", normals_data)
+                    else:
+                        raise TypeError(f"Unsupported custom_normal data type: '{temp_normal_attr.data_type}'. Supported types: 'INT16_2D'")
+                finally:
+                    mesh_data.attributes.remove(temp_normal_attr)
 
-        if self.separate_armature:
-            logger.debug("Joining separate armature to new model")
-            with context.temp_override(
-                active_object=separate_model_armature_object,
-                selected_editable_objects=[separate_model_armature_object, separate_armature_object],
-            ):
+        if self.separate_armature and separate_armature_object:
+            separate_armature_data = separate_armature_object.data
+            with select_object(separate_model_armature_object, objects=[separate_model_armature_object, separate_armature_object]):
                 bpy.ops.object.join()
+            if separate_armature_data.users == 0:
+                bpy.data.armatures.remove(separate_armature_data)
 
-        # add mesh
-        logger.debug("Parenting separate mesh objects to new model")
-        with context.temp_override(
-            object=separate_model_armature_object,
-            selected_editable_objects=[separate_model_armature_object, *separate_mesh_objects],
-        ):
+        if separate_mesh_objects:
+            with select_object(separate_model_armature_object, objects=[separate_model_armature_object] + separate_mesh_objects):
                 bpy.ops.object.parent_set(type="OBJECT", keep_transform=True)
 
-        # replace mesh armature modifier.object
-        logger.debug("Updating armature modifiers on separate meshes")
+        # Replace mesh armature modifier.object
         for separate_mesh in separate_mesh_objects:
             armature_modifier: Optional[bpy.types.ArmatureModifier] = next(iter([m for m in separate_mesh.modifiers if m.type == "ARMATURE"]), None)
             if armature_modifier is None:
-                logger.debug(f"Creating new armature modifier for {separate_mesh.name}")
-                armature_modifier: bpy.types.ArmatureModifier = separate_mesh.modifiers.new("mmd_bone_order_override", "ARMATURE")
+                armature_modifier: bpy.types.ArmatureModifier = separate_mesh.modifiers.new("mmd_armature", "ARMATURE")
 
             armature_modifier.object = separate_model_armature_object
 
-        logger.debug("Parenting rigid bodies to new model")
-        with context.temp_override(
-            object=separate_model.rigidGroupObject(),
-            selected_editable_objects=[separate_model.rigidGroupObject(), *separate_rigid_bodies],
-        ):
+        if separate_rigid_bodies:
+            with select_object(separate_model.rigidGroupObject(), objects=[separate_model.rigidGroupObject()] + list(separate_rigid_bodies)):
                 bpy.ops.object.parent_set(type="OBJECT", keep_transform=True)
 
-        logger.debug("Parenting joints to new model")
-        with context.temp_override(
-            object=separate_model.jointGroupObject(),
-            selected_editable_objects=[separate_model.jointGroupObject(), *separate_joints],
-        ):
+        if separate_joints:
+            with select_object(separate_model.jointGroupObject(), objects=[separate_model.jointGroupObject()] + list(separate_joints)):
                 bpy.ops.object.parent_set(type="OBJECT", keep_transform=True)
 
-        # move separate objects to new collection
+        # Move separate objects to new collection
         mmd_layer_collection = FnContext.find_user_layer_collection_by_object(context, mmd_root_object)
         assert mmd_layer_collection is not None
 
@@ -293,31 +326,42 @@ class ModelSeparateByBonesOperator(bpy.types.Operator):
         assert separate_layer_collection is not None
 
         if mmd_layer_collection.name != separate_layer_collection.name:
-            logger.debug(f"Moving objects from collection {mmd_layer_collection.name} to {separate_layer_collection.name}")
             for separate_object in itertools.chain(separate_mesh_objects, separate_rigid_bodies, separate_joints):
+                if separate_object.name not in separate_layer_collection.collection.objects:
                     separate_layer_collection.collection.objects.link(separate_object)
+                if separate_object.name in mmd_layer_collection.collection.objects:
                     mmd_layer_collection.collection.objects.unlink(separate_object)
 
-        logger.debug("Copying MMD root properties")
         FnModel.copy_mmd_root(
             separate_root_object,
             mmd_root_object,
             overwrite=True,
             replace_name2values={
-                # replace related_mesh property values
-                "related_mesh": {m.data.name: s.data.name for m, s in model2separate_mesh_objects.items()}
+                # Replace related_mesh property values
+                "related_mesh": {m.data.name: s.data.name for m, s in model2separate_mesh_objects.items()},
             },
         )
 
-    def select_weighted_vertices(self, mmd_model_mesh_objects: List[Object], separate_bones: Dict[str, EditBone], deform_bones: Dict[str, EditBone], weight_threshold: float) -> Dict[Object, int]:
-        """Select vertices weighted to the bones to be separated"""
-        logger.debug(f"Selecting vertices weighted to {len(separate_bones)} bones with threshold {weight_threshold}")
-        mesh2selected_vertex_count: Dict[Object, int] = dict()
+        # Apply additional transform
+        FnContext.set_active_and_select_single_object(context, mmd_root_object)
+        bpy.ops.mmd_tools.apply_additional_transform()
+        FnContext.set_active_and_select_single_object(context, separate_root_object)
+        bpy.ops.mmd_tools.apply_additional_transform()
+
+        # Restore original transform matrix for root object
+        mmd_root_object.matrix_world = original_matrix_world
+        separate_root_object.matrix_world = original_matrix_world
+
+        # End state
+        FnContext.set_active_and_select_single_object(context, separate_root_object)
+
+    def _select_weighted_vertices(self, mmd_model_mesh_objects: List[bpy.types.Object], separate_bones: Dict[str, bpy.types.EditBone], deform_bones: Dict[str, bpy.types.EditBone], weight_threshold: float) -> Dict[bpy.types.Object, int]:
+        mesh2selected_vertex_count: Dict[bpy.types.Object, int] = {}
         target_bmesh: bmesh.types.BMesh = bmesh.new()
         for mesh_object in mmd_model_mesh_objects:
             vertex_groups: bpy.types.VertexGroups = mesh_object.vertex_groups
 
-            mesh: Mesh = mesh_object.data
+            mesh: bpy.types.Mesh = mesh_object.data
             target_bmesh.from_mesh(mesh, face_normals=False)
             target_bmesh.select_mode |= {"VERT"}
             deform_layer = target_bmesh.verts.layers.deform.verify()
@@ -344,7 +388,6 @@ class ModelSeparateByBonesOperator(bpy.types.Operator):
                 vert.select_set(True)
 
             if selected_vertex_count > 0:
-                logger.debug(f"Selected {selected_vertex_count} vertices in mesh {mesh_object.name}")
                 mesh2selected_vertex_count[mesh_object] = selected_vertex_count
                 target_bmesh.select_flush_mode()
                 target_bmesh.to_mesh(mesh)
@@ -352,3 +395,61 @@ class ModelSeparateByBonesOperator(bpy.types.Operator):
             target_bmesh.clear()
 
         return mesh2selected_vertex_count
+
+    def _select_related_ik_bones(self, armature_object: bpy.types.Object) -> None:
+        """
+        Expand the current selection to include any full IK systems that are
+        partially selected. An IK system includes the chain bones, the IK
+        target bone, and the pole target bone.
+
+        NOTE: This method operates entirely in EDIT mode and avoids mode switching
+        to prevent segmentation faults.
+        """
+        edit_bones = armature_object.data.edit_bones
+        initial_selection_names = {b.name for b in edit_bones if b.select}
+
+        # Access pose bones constraints directly without mode switching
+        pose_bones = armature_object.pose.bones
+
+        # Find all complete IK systems
+        ik_systems = []
+
+        for pose_bone in pose_bones:
+            for constraint in pose_bone.constraints:
+                if constraint.type == "IK":
+                    # Build the set of bones in this IK system
+                    system_bones = {pose_bone.name}
+
+                    # Add the main IK Target bone
+                    if constraint.target and constraint.subtarget:
+                        system_bones.add(constraint.subtarget)
+
+                    # Add the Pole Target bone
+                    if constraint.pole_target and constraint.pole_subtarget:
+                        system_bones.add(constraint.pole_subtarget)
+
+                    # Add all other bones in the IK chain
+                    current_bone_name = pose_bone.name
+                    chain_count = constraint.chain_count
+
+                    # Walk up the parent chain
+                    for _ in range(chain_count - 1):
+                        if current_bone_name not in edit_bones:
+                            break
+                        current_bone = edit_bones[current_bone_name]
+                        if not current_bone.parent:
+                            break
+                        current_bone_name = current_bone.parent.name
+                        system_bones.add(current_bone_name)
+
+                    ik_systems.append(system_bones)
+
+        # Expand selection to include any related, full IK systems
+        final_selection_names = set(initial_selection_names)
+        for system in ik_systems:
+            if not system.isdisjoint(initial_selection_names):
+                final_selection_names.update(system)
+
+        # Apply the final selection
+        for bone in edit_bones:
+            bone.select = bone.name in final_selection_names

core/mmd/operators/morph.py

@@ -1,30 +1,26 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2015 MMD Tools authors
+# This file is part of MMD Tools.
 
-from typing import Optional, cast, List, Dict, Any, Set, Tuple, Union
+from collections import namedtuple
+from typing import Optional, cast
 
 import bpy
 from mathutils import Quaternion, Vector
 
-from ..core.model import FnModel
 from .. import bpyutils, utils
 from ..core.exceptions import MaterialNotFoundError
 from ..core.material import FnMaterial
+from ..core.model import FnModel
 from ..core.morph import FnMorph
 from ..utils import ItemMoveOp, ItemOp
-from ....logging_setup import logger
 
 
 # Util functions
-def divide_vector_components(vec1: List[float], vec2: List[float]) -> List[float]:
+def divide_vector_components(vec1, vec2):
     if len(vec1) != len(vec2):
         raise ValueError("Vectors should have the same number of components")
     result = []
-    for v1, v2 in zip(vec1, vec2):
+    for v1, v2 in zip(vec1, vec2, strict=False):
         if v2 == 0:
             if v1 == 0:
                 v2 = 1  # If we have a 0/0 case we change the divisor to 1
@@ -34,17 +30,17 @@ def divide_vector_components(vec1: List[float], vec2: List[float]) -> List[float
     return result
 
 
-def multiply_vector_components(vec1: List[float], vec2: List[float]) -> List[float]:
+def multiply_vector_components(vec1, vec2):
     if len(vec1) != len(vec2):
         raise ValueError("Vectors should have the same number of components")
     result = []
-    for v1, v2 in zip(vec1, vec2):
+    for v1, v2 in zip(vec1, vec2, strict=False):
         result.append(v1 * v2)
     return result
 
 
-def special_division(n1: float, n2: float) -> float:
-    """This function returns 0 in case of 0/0. If non-zero divided by zero case is found, an Exception is raised"""
+def special_division(n1, n2):
+    """Return 0 in case of 0/0. If non-zero divided by zero case is found, an Exception is raised"""
     if n2 == 0:
         if n1 == 0:
             n2 = 1
@@ -59,7 +55,7 @@ class AddMorph(bpy.types.Operator):
     bl_description = "Add a morph item to active morph list"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         mmd_root = root.mmd_root
@@ -69,7 +65,6 @@ class AddMorph(bpy.types.Operator):
         morph.name = "New Morph"
         if morph_type.startswith("uv"):
             morph.data_type = "VERTEX_GROUP"
-        logger.debug(f"Added new morph of type {morph_type}")
         return {"FINISHED"}
 
 
@@ -86,7 +81,7 @@ class RemoveMorph(bpy.types.Operator):
         options={"SKIP_SAVE"},
     )
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         mmd_root = root.mmd_root
@@ -101,21 +96,19 @@ class RemoveMorph(bpy.types.Operator):
         if self.all:
             morphs.clear()
             mmd_root.active_morph = 0
-            logger.debug(f"Removed all morphs of type {morph_type}")
         else:
             morphs.remove(mmd_root.active_morph)
             mmd_root.active_morph = max(0, mmd_root.active_morph - 1)
-            logger.debug(f"Removed morph at index {mmd_root.active_morph} of type {morph_type}")
         return {"FINISHED"}
 
 
 class MoveMorph(bpy.types.Operator, ItemMoveOp):
     bl_idname = "mmd_tools.morph_move"
     bl_label = "Move Morph"
-    bl_description = "Move active morph item up/down in the list"
+    bl_description = "Move active morph item up/down in the list. This will not affect the morph order in exported PMX files (use Display Panel order instead)."
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         mmd_root = root.mmd_root
@@ -124,7 +117,6 @@ class MoveMorph(bpy.types.Operator, ItemMoveOp):
             mmd_root.active_morph,
             self.type,
         )
-        logger.debug(f"Moved morph to index {mmd_root.active_morph}")
         return {"FINISHED"}
 
 
@@ -134,7 +126,7 @@ class CopyMorph(bpy.types.Operator):
     bl_description = "Make a copy of active morph in the list"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
@@ -146,7 +138,7 @@ class CopyMorph(bpy.types.Operator):
         if morph is None:
             return {"CANCELLED"}
 
-        name_orig, name_tmp = morph.name, "_tmp%s" % str(morph.as_pointer())
+        name_orig, name_tmp = morph.name, f"_tmp{str(morph.as_pointer())}"
 
         if morph_type.startswith("vertex"):
             for obj in FnModel.iterate_mesh_objects(root):
@@ -161,7 +153,6 @@ class CopyMorph(bpy.types.Operator):
         for k, v in morph.items():
             morph_new[k] = v if k != "name" else name_tmp
         morph_new.name = name_orig + "_copy"  # trigger name check
-        logger.debug(f"Copied morph {name_orig} to {morph_new.name}")
         return {"FINISHED"}
 
 
@@ -171,17 +162,14 @@ class OverwriteBoneMorphsFromActionPose(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
+    def poll(cls, context):
         root = FnModel.find_root_object(context.active_object)
-        if root is None:
-            return False
+        return root is not None and root.mmd_root.active_morph_type == "bone_morphs"
 
-        return root.mmd_root.active_morph_type == "bone_morphs"
-
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         root = FnModel.find_root_object(context.active_object)
         FnMorph.overwrite_bone_morphs_from_action_pose(FnModel.find_armature_object(root))
-        logger.info("Overwrote bone morphs from active action pose")
+
         return {"FINISHED"}
 
 
@@ -191,7 +179,7 @@ class AddMorphOffset(bpy.types.Operator):
     bl_description = "Add a morph offset item to the list"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         mmd_root = root.mmd_root
@@ -216,7 +204,6 @@ class AddMorphOffset(bpy.types.Operator):
                 item.location = pose_bone.location
                 item.rotation = pose_bone.rotation_quaternion
 
-        logger.debug(f"Added morph offset to {morph_type}")
         return {"FINISHED"}
 
 
@@ -233,7 +220,7 @@ class RemoveMorphOffset(bpy.types.Operator):
         options={"SKIP_SAVE"},
     )
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
@@ -250,21 +237,17 @@ class RemoveMorphOffset(bpy.types.Operator):
             if morph_type.startswith("vertex"):
                 for obj in FnModel.iterate_mesh_objects(root):
                     FnMorph.remove_shape_key(obj, morph.name)
-                logger.debug(f"Removed all vertex morph offsets for {morph.name}")
                 return {"FINISHED"}
-            elif morph_type.startswith("uv"):
+            if morph_type.startswith("uv"):
                 if morph.data_type == "VERTEX_GROUP":
                     for obj in FnModel.iterate_mesh_objects(root):
                         FnMorph.store_uv_morph_data(obj, morph)
-                    logger.debug(f"Removed all UV morph offsets for {morph.name}")
                     return {"FINISHED"}
             morph.data.clear()
             morph.active_data = 0
-            logger.debug(f"Cleared all morph offsets for {morph.name}")
         else:
             morph.data.remove(morph.active_data)
             morph.active_data = max(0, morph.active_data - 1)
-            logger.debug(f"Removed morph offset at index {morph.active_data}")
         return {"FINISHED"}
 
 
@@ -280,7 +263,7 @@ class InitMaterialOffset(bpy.types.Operator):
         default=0,
     )
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         mmd_root = root.mmd_root
@@ -292,7 +275,6 @@ class InitMaterialOffset(bpy.types.Operator):
         mat_data.specular_color = mat_data.ambient_color = (val,) * 3
         mat_data.shininess = mat_data.edge_weight = val
         mat_data.texture_factor = mat_data.toon_texture_factor = mat_data.sphere_texture_factor = (val,) * 4
-        logger.debug(f"Initialized material offset with value {val}")
         return {"FINISHED"}
 
 
@@ -302,7 +284,7 @@ class ApplyMaterialOffset(bpy.types.Operator):
     bl_description = "Calculates the offsets and apply them, then the temporary material is removed"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         mmd_root = root.mmd_root
@@ -340,7 +322,6 @@ class ApplyMaterialOffset(bpy.types.Operator):
 
             except ZeroDivisionError:
                 mat_data.offset_type = "ADD"  # If there is any 0 division we automatically switch it to type ADD
-                logger.warning("Zero division detected, switching to ADD offset type")
             except ValueError:
                 self.report({"ERROR"}, "An unexpected error happened")
                 # We should stop on our tracks and re-raise the exception
@@ -358,7 +339,6 @@ class ApplyMaterialOffset(bpy.types.Operator):
             mat_data.edge_weight = work_mmd_mat.edge_weight - base_mmd_mat.edge_weight
 
         FnMaterial.clean_materials(meshObj, can_remove=lambda m: m == work_mat)
-        logger.info(f"Applied material offset for {mat_data.material}")
         return {"FINISHED"}
 
 
@@ -368,7 +348,7 @@ class CreateWorkMaterial(bpy.types.Operator):
     bl_description = "Creates a temporary material to edit this offset"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         mmd_root = root.mmd_root
@@ -385,12 +365,12 @@ class CreateWorkMaterial(bpy.types.Operator):
 
         base_mat = meshObj.data.materials.get(mat_data.material, None)
         if base_mat is None:
-            self.report({"ERROR"}, 'Material "%s" not found' % mat_data.material)
+            self.report({"ERROR"}, f'Material "{mat_data.material}" not found')
             return {"CANCELLED"}
 
         work_mat_name = base_mat.name + "_temp"
         if work_mat_name in bpy.data.materials:
-            self.report({"ERROR"}, 'Temporary material "%s" is in use' % work_mat_name)
+            self.report({"ERROR"}, f'Temporary material "{work_mat_name}" is in use')
             return {"CANCELLED"}
 
         work_mat = base_mat.copy()
@@ -427,7 +407,6 @@ class CreateWorkMaterial(bpy.types.Operator):
             work_mmd_mat.edge_color = list(edge_offset)
             work_mmd_mat.edge_weight += mat_data.edge_weight
 
-        logger.info(f"Created work material {work_mat_name}")
         return {"FINISHED"}
 
 
@@ -437,24 +416,23 @@ class ClearTempMaterials(bpy.types.Operator):
     bl_description = "Clears all the temporary materials"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
         for meshObj in FnModel.iterate_mesh_objects(root):
 
-            def __pre_remove(m: Optional[bpy.types.Material]) -> bool:
+            def __pre_remove(m, meshObj=meshObj):
                 if m and "_temp" in m.name:
                     base_mat_name = m.name.split("_temp")[0]
                     try:
                         FnMaterial.swap_materials(meshObj, m.name, base_mat_name)
                         return True
                     except MaterialNotFoundError:
-                        self.report({"WARNING"}, "Base material for %s was not found" % m.name)
+                        self.report({"WARNING"}, f"Base material for {m.name} was not found")
                 return False
 
             FnMaterial.clean_materials(meshObj, can_remove=__pre_remove)
-        logger.info("Cleared all temporary materials")
         return {"FINISHED"}
 
 
@@ -464,7 +442,7 @@ class ViewBoneMorph(bpy.types.Operator):
     bl_description = "View the result of active bone morph"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
@@ -475,11 +453,10 @@ class ViewBoneMorph(bpy.types.Operator):
         for morph_data in morph.data:
             p_bone: Optional[bpy.types.PoseBone] = armature.pose.bones.get(morph_data.bone, None)
             if p_bone:
-                p_bone.bone.select = True
+                p_bone.select = True
                 mtx = (p_bone.matrix_basis.to_3x3() @ Quaternion(*morph_data.rotation.to_axis_angle()).to_matrix()).to_4x4()
                 mtx.translation = p_bone.location + morph_data.location
                 p_bone.matrix_basis = mtx
-        logger.info(f"Viewing bone morph: {morph.name}")
         return {"FINISHED"}
 
 
@@ -489,14 +466,13 @@ class ClearBoneMorphView(bpy.types.Operator):
     bl_description = "Reset transforms of all bones to their default values"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
         armature = FnModel.find_armature_object(root)
         for p_bone in armature.pose.bones:
             p_bone.matrix_basis.identity()
-        logger.info("Cleared bone morph view")
         return {"FINISHED"}
 
 
@@ -506,7 +482,7 @@ class ApplyBoneMorph(bpy.types.Operator):
     bl_description = "Apply current pose to active bone morph"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
@@ -521,10 +497,9 @@ class ApplyBoneMorph(bpy.types.Operator):
                 item.bone = p_bone.name
                 item.location = p_bone.location
                 item.rotation = p_bone.rotation_quaternion if p_bone.rotation_mode == "QUATERNION" else p_bone.matrix_basis.to_quaternion()
-                p_bone.bone.select = True
+                p_bone.select = True
             else:
-                p_bone.bone.select = False
-        logger.info(f"Applied current pose to bone morph: {morph.name}")
+                p_bone.select = False
         return {"FINISHED"}
 
 
@@ -534,7 +509,7 @@ class SelectRelatedBone(bpy.types.Operator):
     bl_description = "Select the bone assigned to this offset in the armature"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
@@ -543,7 +518,6 @@ class SelectRelatedBone(bpy.types.Operator):
         morph = mmd_root.bone_morphs[mmd_root.active_morph]
         morph_data = morph.data[morph.active_data]
         utils.selectSingleBone(context, armature, morph_data.bone)
-        logger.debug(f"Selected bone: {morph_data.bone}")
         return {"FINISHED"}
 
 
@@ -553,7 +527,7 @@ class EditBoneOffset(bpy.types.Operator):
     bl_description = "Applies the location and rotation of this offset to the bone"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
@@ -566,7 +540,6 @@ class EditBoneOffset(bpy.types.Operator):
         mtx.translation = morph_data.location
         p_bone.matrix_basis = mtx
         utils.selectSingleBone(context, armature, p_bone.name)
-        logger.debug(f"Edited bone offset for {p_bone.name}")
         return {"FINISHED"}
 
 
@@ -576,7 +549,7 @@ class ApplyBoneOffset(bpy.types.Operator):
     bl_description = "Stores the current bone location and rotation into this offset"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
@@ -588,7 +561,6 @@ class ApplyBoneOffset(bpy.types.Operator):
         p_bone = armature.pose.bones[morph_data.bone]
         morph_data.location = p_bone.location
         morph_data.rotation = p_bone.rotation_quaternion if p_bone.rotation_mode == "QUATERNION" else p_bone.matrix_basis.to_quaternion()
-        logger.debug(f"Applied bone offset for {p_bone.name}")
         return {"FINISHED"}
 
 
@@ -598,7 +570,7 @@ class ViewUVMorph(bpy.types.Operator):
     bl_description = "View the result of active UV morph on current mesh object"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
@@ -616,11 +588,11 @@ class ViewUVMorph(bpy.types.Operator):
 
         selected = meshObj.select_get()
         with bpyutils.select_object(meshObj):
-            mesh = cast(bpy.types.Mesh, meshObj.data)
+            mesh = cast("bpy.types.Mesh", meshObj.data)
             morph = mmd_root.uv_morphs[mmd_root.active_morph]
             uv_textures = mesh.uv_layers
 
-            base_uv_layers = [l for l in mesh.uv_layers if not l.name.startswith("_")]
+            base_uv_layers = [layer for layer in mesh.uv_layers if not layer.name.startswith("_")]
             if morph.uv_index >= len(base_uv_layers):
                 self.report({"ERROR"}, "Invalid uv index: %d" % morph.uv_index)
                 return {"CANCELLED"}
@@ -630,7 +602,7 @@ class ViewUVMorph(bpy.types.Operator):
                 uv_textures.active = uv_textures[uv_layer_name]
 
             uv_layer_name = uv_textures.active.name
-            uv_tex = uv_textures.new(name="__uv.%s" % uv_layer_name)
+            uv_tex = uv_textures.new(name=f"__uv.{uv_layer_name}")
             if uv_tex is None:
                 self.report({"ERROR"}, "Failed to create a temporary uv layer")
                 return {"CANCELLED"}
@@ -640,16 +612,15 @@ class ViewUVMorph(bpy.types.Operator):
             if len(offsets) > 0:
                 base_uv_data = mesh.uv_layers.active.data
                 temp_uv_data = mesh.uv_layers[uv_tex.name].data
-                for i, l in enumerate(mesh.loops):
-                    select = temp_uv_data[i].select = l.vertex_index in offsets
+                for i, loop in enumerate(mesh.loops):
+                    select = temp_uv_data[i].select = loop.vertex_index in offsets
                     if select:
-                        temp_uv_data[i].uv = base_uv_data[i].uv + offsets[l.vertex_index]
+                        temp_uv_data[i].uv = base_uv_data[i].uv + offsets[loop.vertex_index]
 
             uv_textures.active = uv_tex
             uv_tex.active_render = True
         meshObj.hide_set(False)
         meshObj.select_set(selected)
-        logger.info(f"Viewing UV morph: {morph.name}")
         return {"FINISHED"}
 
 
@@ -659,14 +630,14 @@ class ClearUVMorphView(bpy.types.Operator):
     bl_description = "Clear all temporary data of UV morphs"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         assert root is not None
         for m in FnModel.iterate_mesh_objects(root):
             mesh = m.data
             uv_textures = getattr(mesh, "uv_textures", mesh.uv_layers)
-            for t in uv_textures:
+            for t in reversed(uv_textures):
                 if t.name.startswith("__uv."):
                     uv_textures.remove(t)
             if len(uv_textures) > 0:
@@ -676,7 +647,7 @@ class ClearUVMorphView(bpy.types.Operator):
             animation_data = mesh.animation_data
             if animation_data:
                 nla_tracks = animation_data.nla_tracks
-                for t in nla_tracks:
+                for t in reversed(nla_tracks):
                     if t.name.startswith("__uv."):
                         nla_tracks.remove(t)
                 if animation_data.action and animation_data.action.name.startswith("__uv."):
@@ -684,10 +655,9 @@ class ClearUVMorphView(bpy.types.Operator):
                 if animation_data.action is None and len(nla_tracks) == 0:
                     mesh.animation_data_clear()
 
-        for act in bpy.data.actions:
+        for act in reversed(bpy.data.actions):
             if act.name.startswith("__uv.") and act.users < 1:
                 bpy.data.actions.remove(act)
-        logger.info("Cleared UV morph view")
         return {"FINISHED"}
 
 
@@ -698,20 +668,20 @@ class EditUVMorph(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
+    def poll(cls, context):
         obj = context.active_object
-        if obj.type != "MESH":
+        if obj is None or obj.type != "MESH":
             return False
         active_uv_layer = obj.data.uv_layers.active
-        return active_uv_layer and active_uv_layer.name.startswith("__uv.")
+        return active_uv_layer is not None and active_uv_layer.name.startswith("__uv.")
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         meshObj = obj
 
         selected = meshObj.select_get()
         with bpyutils.select_object(meshObj):
-            mesh = cast(bpy.types.Mesh, meshObj.data)
+            mesh = cast("bpy.types.Mesh", meshObj.data)
             bpy.ops.object.mode_set(mode="EDIT")
             bpy.ops.mesh.select_mode(type="VERT", action="ENABLE")
             bpy.ops.mesh.reveal()  # unhide all vertices
@@ -719,16 +689,15 @@ class EditUVMorph(bpy.types.Operator):
             bpy.ops.object.mode_set(mode="OBJECT")
 
             vertices = mesh.vertices
-            for l, d in zip(mesh.loops, mesh.uv_layers.active.data):
+            for loop, d in zip(mesh.loops, mesh.uv_layers.active.data, strict=False):
                 if d.select:
-                    vertices[l.vertex_index].select = True
+                    vertices[loop.vertex_index].select = True
 
             polygons = mesh.polygons
             polygons.active = getattr(next((p for p in polygons if all(vertices[i].select for i in p.vertices)), None), "index", polygons.active)
 
             bpy.ops.object.mode_set(mode="EDIT")
         meshObj.select_set(selected)
-        logger.info("Editing UV morph")
         return {"FINISHED"}
 
 
@@ -739,14 +708,14 @@ class ApplyUVMorph(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
+    def poll(cls, context):
         obj = context.active_object
-        if obj.type != "MESH":
+        if obj is None or obj.type != "MESH":
             return False
         active_uv_layer = obj.data.uv_layers.active
-        return active_uv_layer and active_uv_layer.name.startswith("__uv.")
+        return active_uv_layer is not None and active_uv_layer.name.startswith("__uv.")
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         mmd_root = root.mmd_root
@@ -754,34 +723,31 @@ class ApplyUVMorph(bpy.types.Operator):
 
         selected = meshObj.select_get()
         with bpyutils.select_object(meshObj):
-            mesh = cast(bpy.types.Mesh, meshObj.data)
+            mesh = cast("bpy.types.Mesh", meshObj.data)
             morph = mmd_root.uv_morphs[mmd_root.active_morph]
 
             base_uv_name = mesh.uv_layers.active.name[5:]
             if base_uv_name not in mesh.uv_layers:
-                self.report({"ERROR"}, ' * UV map "%s" not found' % base_uv_name)
+                self.report({"ERROR"}, f' * UV map "{base_uv_name}" not found')
                 return {"CANCELLED"}
 
             base_uv_data = mesh.uv_layers[base_uv_name].data
             temp_uv_data = mesh.uv_layers.active.data
             axis_type = "ZW" if base_uv_name.startswith("_") else "XY"
 
-            from collections import namedtuple
-
             __OffsetData = namedtuple("OffsetData", "index, offset")
             offsets = {}
             vertices = mesh.vertices
-            for l, i0, i1 in zip(mesh.loops, base_uv_data, temp_uv_data):
-                if vertices[l.vertex_index].select and l.vertex_index not in offsets:
+            for loop, i0, i1 in zip(mesh.loops, base_uv_data, temp_uv_data, strict=False):
+                if vertices[loop.vertex_index].select and loop.vertex_index not in offsets:
                     dx, dy = i1.uv - i0.uv
                     if abs(dx) > 0.0001 or abs(dy) > 0.0001:
-                        offsets[l.vertex_index] = __OffsetData(l.vertex_index, (dx, dy, dx, dy))
+                        offsets[loop.vertex_index] = __OffsetData(loop.vertex_index, (dx, dy, dx, dy))
 
             FnMorph.store_uv_morph_data(meshObj, morph, offsets.values(), axis_type)
             morph.data_type = "VERTEX_GROUP"
 
         meshObj.select_set(selected)
-        logger.info(f"Applied UV morph: {morph.name}")
         return {"FINISHED"}
 
 
@@ -792,12 +758,339 @@ class CleanDuplicatedMaterialMorphs(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
-        return FnModel.find_root_object(context.active_object) is not None
+    def poll(cls, context):
+        root = FnModel.find_root_object(context.active_object)
+        return root is not None
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context: bpy.types.Context):
         mmd_root_object = FnModel.find_root_object(context.active_object)
         FnMorph.clean_duplicated_material_morphs(mmd_root_object)
-        logger.info("Cleaned duplicated material morphs")
 
         return {"FINISHED"}
+
+
+class ConvertBoneMorphToVertexMorph(bpy.types.Operator):
+    bl_idname = "mmd_tools.convert_bone_morph_to_vertex_morph"
+    bl_label = "Convert To Vertex Morph"
+    bl_description = "Convert a bone morph into a single vertex morph by applying the bone transformations.\nIf a corresponding vertex morph already exists, it will be updated."
+    bl_options = {"REGISTER", "UNDO", "INTERNAL"}
+
+    @classmethod
+    def poll(cls, context):
+        root = FnModel.find_root_object(context.active_object)
+        if root is None:
+            return False
+        mmd_root = root.mmd_root
+        if mmd_root.active_morph_type != "bone_morphs":
+            return False
+        morph = ItemOp.get_by_index(mmd_root.bone_morphs, mmd_root.active_morph)
+        return morph is not None and len(morph.data) > 0
+
+    def execute(self, context):
+        obj = context.active_object
+        root = FnModel.find_root_object(obj)
+        mmd_root = root.mmd_root
+
+        # Get the active bone morph
+        bone_morph = ItemOp.get_by_index(mmd_root.bone_morphs, mmd_root.active_morph)
+        if bone_morph is None:
+            self.report({"ERROR"}, "No active bone morph")
+            return {"CANCELLED"}
+
+        original_name = bone_morph.name
+        target_name = original_name
+
+        # Add 'B' suffix if necessary
+        if not original_name.endswith("B"):
+            bone_morph.name = original_name + "B"
+            target_name = original_name
+        else:
+            # If already has B suffix, use name without B
+            target_name = original_name[:-1]
+
+        try:
+            # Step 1: import
+            from ..core.model import Model
+
+            rig = Model(root)
+
+            # Ensure morph slider is bound
+            bpy.ops.mmd_tools.morph_slider_setup(type="BIND")
+
+            # Re-obtain placeholder object
+            placeholder_obj = rig.morph_slider.placeholder()
+            if placeholder_obj is None or placeholder_obj.data.shape_keys is None:
+                self.report({"ERROR"}, "Failed to create morph slider system")
+                return {"CANCELLED"}
+
+            shape_keys = placeholder_obj.data.shape_keys
+            key_blocks = shape_keys.key_blocks
+
+            # Step 2: Check if target bone morph exists
+            current_morph_name = bone_morph.name
+            if current_morph_name not in key_blocks:
+                self.report({"ERROR"}, f"Bone morph '{current_morph_name}' not found in morph sliders")
+                return {"CANCELLED"}
+
+            # Step 3: Save all current morph values
+            original_values = {}
+            for key_block in key_blocks:
+                if key_block.name != "--- morph sliders ---":
+                    original_values[key_block.name] = key_block.value
+
+            # Step 4: Set all morphs to 0
+            for key_block in key_blocks:
+                if key_block.name != "--- morph sliders ---":
+                    key_block.value = 0
+
+            # Step 5: Set target bone morph to 1.0
+            key_blocks[current_morph_name].value = 1.0
+
+            # Step 6: Use Armature Modifier's "Apply as Shape Key" functionality
+            created_shape_keys = []
+            for mesh_obj in FnModel.iterate_mesh_objects(root):
+                # Switch to this mesh object
+                context.view_layer.objects.active = mesh_obj
+
+                # Ensure mesh object has shape keys
+                if mesh_obj.data.shape_keys is None:
+                    mesh_obj.shape_key_add(name="Basis", from_mix=False)
+
+                # Delete existing shape key with same name
+                if target_name in mesh_obj.data.shape_keys.key_blocks:
+                    idx = mesh_obj.data.shape_keys.key_blocks.find(target_name)
+                    if idx >= 0:
+                        mesh_obj.active_shape_key_index = idx
+                        bpy.ops.object.shape_key_remove()
+
+                # Find armature modifier
+                armature_modifier = None
+                for modifier in mesh_obj.modifiers:
+                    if modifier.type == "ARMATURE":
+                        armature_modifier = modifier
+                        break
+
+                if armature_modifier is None:
+                    self.report({"WARNING"}, f"No armature modifier found on mesh '{mesh_obj.name}'")
+                    continue
+
+                # Use Apply as Shape Key functionality, keeping the modifier
+                bpy.ops.object.modifier_apply_as_shapekey(modifier=armature_modifier.name, keep_modifier=True)
+
+                # Rename the newly created shape key to target name
+                shape_key_blocks = mesh_obj.data.shape_keys.key_blocks
+                new_shape_key = shape_key_blocks[-1]  # Latest created shape key
+                new_shape_key.name = target_name
+                new_shape_key.value = 0.0  # Set to 0 to avoid double effect
+
+                created_shape_keys.append((mesh_obj.name, target_name))
+                self.report({"INFO"}, f"Created shape key '{target_name}' on mesh '{mesh_obj.name}'")
+
+            # Step 7: Restore all original morph values
+            for key_name, original_value in original_values.items():
+                if key_name in key_blocks:
+                    key_blocks[key_name].value = original_value
+
+            # Step 8: Create or update vertex morph entry
+            vertex_morph_exists = False
+            for i, morph in enumerate(mmd_root.vertex_morphs):
+                if morph.name == target_name:
+                    vertex_morph_exists = True
+                    mmd_root.active_morph_type = "vertex_morphs"
+                    mmd_root.active_morph = i
+                    break
+
+            if not vertex_morph_exists:
+                mmd_root.active_morph_type = "vertex_morphs"
+                morph, mmd_root.active_morph = ItemOp.add_after(mmd_root.vertex_morphs, mmd_root.active_morph)
+                morph.name = target_name
+
+            # Step 9: Add to facial expression display frame
+            facial_frame = None
+            for frame in mmd_root.display_item_frames:
+                if frame.name == "表情":
+                    facial_frame = frame
+                    break
+
+            if facial_frame:
+                morph_exists_in_frame = False
+                for item in facial_frame.data:
+                    if item.type == "MORPH" and item.name == target_name and item.morph_type == "vertex_morphs":
+                        morph_exists_in_frame = True
+                        break
+
+                if not morph_exists_in_frame:
+                    new_item = facial_frame.data.add()
+                    new_item.type = "MORPH"
+                    new_item.morph_type = "vertex_morphs"
+                    new_item.name = target_name
+
+                    facial_frame.active_item = len(facial_frame.data) - 1
+
+                    for i, frame in enumerate(mmd_root.display_item_frames):
+                        if frame.name == "表情":
+                            mmd_root.active_display_item_frame = i
+                            break
+
+            # UNBIND
+            bpy.ops.mmd_tools.morph_slider_setup(type="UNBIND")
+
+            # Success message
+            shape_key_info = ", ".join([f"{mesh}:{key}" for mesh, key in created_shape_keys])
+            self.report({"INFO"}, f"Successfully converted bone morph '{original_name}' to vertex morph '{target_name}'. Created shape keys: {shape_key_info}")
+
+        except Exception as e:
+            self.report({"ERROR"}, f"Error during conversion: {str(e)}")
+            return {"CANCELLED"}
+
+        return {"FINISHED"}
+
+
+class ConvertGroupMorphToVertexMorph(bpy.types.Operator):
+    bl_idname = "mmd_tools.convert_group_morph_to_vertex_morph"
+    bl_label = "Convert To Vertex Morph"
+    bl_description = "Convert a group morph into a single vertex morph by merging only the vertex morphs within the group.\nIf a corresponding vertex morph already exists, it will be updated."
+    bl_options = {"REGISTER", "UNDO", "INTERNAL"}
+
+    @classmethod
+    def poll(cls, context):
+        root = FnModel.find_root_object(context.active_object)
+        if root is None:
+            return False
+        mmd_root = root.mmd_root
+        if mmd_root.active_morph_type != "group_morphs":
+            return False
+        morph = ItemOp.get_by_index(mmd_root.group_morphs, mmd_root.active_morph)
+        return morph is not None and len(morph.data) > 0
+
+    def execute(self, context):
+        bpy.ops.mmd_tools.morph_slider_setup(type="UNBIND")
+
+        obj = context.active_object
+        root = FnModel.find_root_object(obj)
+        mmd_root = root.mmd_root
+
+        # Get the active group morph
+        group_morph = ItemOp.get_by_index(mmd_root.group_morphs, mmd_root.active_morph)
+        if group_morph is None:
+            self.report({"ERROR"}, "No active group morph")
+            return {"CANCELLED"}
+
+        # Check if the group morph contains any vertex morphs to convert
+        has_vertex_morphs = False
+        for offset in group_morph.data:
+            if offset.morph_type == "vertex_morphs":
+                has_vertex_morphs = True
+                break
+
+        if not has_vertex_morphs:
+            self.report({"ERROR"}, "The group morph does not contain any vertex morphs to convert")
+            return {"CANCELLED"}
+
+        original_name = group_morph.name
+        target_name = original_name
+
+        # Add 'G' suffix if necessary
+        if not original_name.endswith("G"):
+            group_morph.name = original_name + "G"
+            target_name = original_name
+        else:
+            # If already has G suffix, use name without G
+            target_name = original_name[:-1]
+
+        # First, reset all shape keys to zero
+        for obj in FnModel.iterate_mesh_objects(root):
+            if obj.data.shape_keys:
+                for kb in obj.data.shape_keys.key_blocks:
+                    kb.value = 0
+
+        # Apply only the vertex morphs from the group morph
+        for offset in group_morph.data:
+            if offset.morph_type == "vertex_morphs":
+                # Find the vertex morph by name
+                vertex_morph = getattr(root.mmd_root, offset.morph_type).get(offset.name)
+                if vertex_morph:
+                    # Apply this morph at the specified factor
+                    for obj in FnModel.iterate_mesh_objects(root):
+                        if obj.data.shape_keys:
+                            kb = obj.data.shape_keys.key_blocks.get(offset.name)
+                            if kb:
+                                kb.value = offset.factor
+
+        # Now add a new shape key from mix for each mesh
+        for obj in FnModel.iterate_mesh_objects(root):
+            if obj.data.shape_keys:
+                # Make this the active object
+                context.view_layer.objects.active = obj
+
+                # Remove existing shape key if it exists
+                if target_name in obj.data.shape_keys.key_blocks:
+                    idx = obj.data.shape_keys.key_blocks.find(target_name)
+                    if idx >= 0:
+                        obj.active_shape_key_index = idx
+                        bpy.ops.object.shape_key_remove()
+
+                # Add shape key from mix
+                bpy.ops.object.shape_key_add(from_mix=True)
+
+                # Rename the newly created shape key
+                new_key = obj.data.shape_keys.key_blocks[-1]
+                new_key.name = target_name
+
+        # Check if a vertex morph with the target name already exists
+        vertex_morph_exists = False
+        for i, morph in enumerate(mmd_root.vertex_morphs):
+            if morph.name == target_name:
+                vertex_morph_exists = True
+                mmd_root.active_morph_type = "vertex_morphs"
+                mmd_root.active_morph = i
+                break
+
+        # If not, create a new vertex morph
+        if not vertex_morph_exists:
+            # Switch to vertex morphs panel
+            mmd_root.active_morph_type = "vertex_morphs"
+
+            # Add new vertex morph
+            morph, mmd_root.active_morph = ItemOp.add_after(mmd_root.vertex_morphs, mmd_root.active_morph)
+            morph.name = target_name
+
+        # Add the new vertex morph to the facial display frame
+        facial_frame = None
+        for frame in mmd_root.display_item_frames:
+            if frame.name == "表情":  # This is the facial display frame
+                facial_frame = frame
+                break
+
+        if facial_frame:
+            # Check if this morph is already in the facial frame
+            morph_exists_in_frame = False
+            for item in facial_frame.data:
+                if item.type == "MORPH" and item.name == target_name and item.morph_type == "vertex_morphs":
+                    morph_exists_in_frame = True
+                    break
+
+            # If not, add it
+            if not morph_exists_in_frame:
+                new_item = facial_frame.data.add()
+                new_item.type = "MORPH"
+                new_item.morph_type = "vertex_morphs"
+                new_item.name = target_name
+
+                # Make this the active item in the facial frame
+                facial_frame.active_item = len(facial_frame.data) - 1
+
+                # Set the facial frame as active
+                for i, frame in enumerate(mmd_root.display_item_frames):
+                    if frame.name == "表情":
+                        mmd_root.active_display_item_frame = i
+                        break
+
+        # Reset all shape keys
+        for obj in FnModel.iterate_mesh_objects(root):
+            if obj.data.shape_keys:
+                for kb in obj.data.shape_keys.key_blocks:
+                    kb.value = 0
+
+        self.report({"INFO"}, f"Successfully converted vertex morphs in group to vertex morph '{target_name}' and added to facial display frame")
+        return {"FINISHED"}

core/mmd/operators/rigid_body.py

@@ -1,12 +1,8 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2015 MMD Tools authors
+# This file is part of MMD Tools.
 
 import math
-from typing import Dict, Optional, Tuple, cast, Set, List, Any, Union, Generator
+from typing import Dict, Optional, Tuple, cast
 
 import bpy
 from mathutils import Euler, Vector
@@ -16,7 +12,6 @@ from ..bpyutils import FnContext, Props
 from ..core import rigid_body
 from ..core.model import FnModel, Model
 from ..core.rigid_body import FnRigidBody
-from ...logging_setup import logger
 
 
 class SelectRigidBody(bpy.types.Operator):
@@ -44,15 +39,15 @@ class SelectRigidBody(bpy.types.Operator):
         default=False,
     )
 
-    def invoke(self, context: bpy.types.Context, event: Any) -> Set[str]:
+    def invoke(self, context, event):
         vm = context.window_manager
         return vm.invoke_props_dialog(self)
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
+    def poll(cls, context):
         return FnModel.is_rigid_body_object(context.active_object)
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
         if root is None:
@@ -174,7 +169,7 @@ class AddRigidBody(bpy.types.Operator):
         default=0.1,
     )
 
-    def __add_rigid_body(self, context: bpy.types.Context, root_object: bpy.types.Object, pose_bone: Optional[bpy.types.PoseBone] = None) -> bpy.types.Object:
+    def __add_rigid_body(self, context: bpy.types.Context, root_object: bpy.types.Object, pose_bone: Optional[bpy.types.PoseBone] = None):
         name_j: str = self.name_j
         name_e: str = self.name_e
         size = self.size.copy()
@@ -227,7 +222,7 @@ class AddRigidBody(bpy.types.Operator):
         )
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
+    def poll(cls, context):
         root_object = FnModel.find_root_object(context.active_object)
         if root_object is None:
             return False
@@ -238,11 +233,11 @@ class AddRigidBody(bpy.types.Operator):
 
         return True
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         active_object = context.active_object
 
-        root_object = cast(bpy.types.Object, FnModel.find_root_object(active_object))
-        armature_object = cast(bpy.types.Object, FnModel.find_armature_object(root_object))
+        root_object = cast("bpy.types.Object", FnModel.find_root_object(active_object))
+        armature_object = cast("bpy.types.Object", FnModel.find_armature_object(root_object))
 
         if active_object != armature_object:
             FnContext.select_single_object(context, root_object).select_set(False)
@@ -255,17 +250,15 @@ class AddRigidBody(bpy.types.Operator):
 
         armature_object.select_set(False)
         if len(selected_pose_bones) > 0:
-            logger.info(f"Adding rigid bodies to {len(selected_pose_bones)} selected bones")
             for pose_bone in selected_pose_bones:
                 rigid = self.__add_rigid_body(context, root_object, pose_bone)
                 rigid.select_set(True)
         else:
-            logger.info("Adding a single rigid body without bone attachment")
             rigid = self.__add_rigid_body(context, root_object)
             rigid.select_set(True)
         return {"FINISHED"}
 
-    def invoke(self, context: bpy.types.Context, event: Any) -> Set[str]:
+    def invoke(self, context, event):
         no_bone = True
         if context.selected_bones and len(context.selected_bones) > 0:
             no_bone = False
@@ -291,13 +284,12 @@ class RemoveRigidBody(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
+    def poll(cls, context):
         return FnModel.is_rigid_body_object(context.active_object)
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
-        logger.info(f"Removing rigid body: {obj.name}")
         utils.selectAObject(obj)  # ensure this is the only one object select
         bpy.ops.object.delete(use_global=True)
         if root:
@@ -310,8 +302,7 @@ class RigidBodyBake(bpy.types.Operator):
     bl_label = "Bake"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
-        logger.info("Baking rigid body simulation")
+    def execute(self, context: bpy.types.Context):
         with context.temp_override(scene=context.scene, point_cache=context.scene.rigidbody_world.point_cache):
             bpy.ops.ptcache.bake("INVOKE_DEFAULT", bake=True)
 
@@ -323,8 +314,7 @@ class RigidBodyDeleteBake(bpy.types.Operator):
     bl_label = "Delete Bake"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
-        logger.info("Deleting rigid body simulation bake")
+    def execute(self, context: bpy.types.Context):
         with context.temp_override(scene=context.scene, point_cache=context.scene.rigidbody_world.point_cache):
             bpy.ops.ptcache.free_bake("INVOKE_DEFAULT")
 
@@ -387,7 +377,7 @@ class AddJoint(bpy.types.Operator):
         min=0,
     )
 
-    def __enumerate_rigid_pair(self, bone_map: Dict[bpy.types.Object, Optional[bpy.types.Bone]]) -> Generator[Tuple[bpy.types.Object, bpy.types.Object], None, None]:
+    def __enumerate_rigid_pair(self, bone_map: Dict[bpy.types.Object, Optional[bpy.types.Bone]]):
         obj_seq = tuple(bone_map.keys())
         for rigid_a, bone_a in bone_map.items():
             for rigid_b, bone_b in bone_map.items():
@@ -400,7 +390,7 @@ class AddJoint(bpy.types.Operator):
             else:
                 yield obj_seq
 
-    def __add_joint(self, context: bpy.types.Context, root_object: bpy.types.Object, rigid_pair: Tuple[bpy.types.Object, bpy.types.Object], bone_map: Dict[bpy.types.Object, Optional[bpy.types.Bone]]) -> bpy.types.Object:
+    def __add_joint(self, context: bpy.types.Context, root_object: bpy.types.Object, rigid_pair: Tuple[bpy.types.Object, bpy.types.Object], bone_map):
         loc: Optional[Vector] = None
         rot = Euler((0.0, 0.0, 0.0))
         rigid_a, rigid_b = rigid_pair
@@ -438,7 +428,7 @@ class AddJoint(bpy.types.Operator):
         )
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
+    def poll(cls, context):
         root_object = FnModel.find_root_object(context.active_object)
         if root_object is None:
             return False
@@ -449,11 +439,11 @@ class AddJoint(bpy.types.Operator):
 
         return True
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         active_object = context.active_object
-        root_object = cast(bpy.types.Object, FnModel.find_root_object(active_object))
-        armature_object = cast(bpy.types.Object, FnModel.find_armature_object(root_object))
-        bones = cast(bpy.types.Armature, armature_object.data).bones
+        root_object = cast("bpy.types.Object", FnModel.find_root_object(active_object))
+        armature_object = cast("bpy.types.Object", FnModel.find_armature_object(root_object))
+        bones = cast("bpy.types.Armature", armature_object.data).bones
         bone_map: Dict[bpy.types.Object, Optional[bpy.types.Bone]] = {r: bones.get(r.mmd_rigid.bone, None) for r in FnModel.iterate_rigid_body_objects(root_object) if r.select_get()}
 
         if len(bone_map) < 2:
@@ -462,19 +452,15 @@ class AddJoint(bpy.types.Operator):
 
         FnContext.select_single_object(context, root_object).select_set(False)
         if context.scene.rigidbody_world is None:
-            logger.info("Creating rigid body world")
             bpy.ops.rigidbody.world_add()
 
-        joint_count = 0
         for pair in self.__enumerate_rigid_pair(bone_map):
             joint = self.__add_joint(context, root_object, pair, bone_map)
             joint.select_set(True)
-            joint_count += 1
 
-        logger.info(f"Added {joint_count} joints between rigid bodies")
         return {"FINISHED"}
 
-    def invoke(self, context: bpy.types.Context, event: Any) -> Set[str]:
+    def invoke(self, context, event):
         vm = context.window_manager
         return vm.invoke_props_dialog(self)
 
@@ -486,13 +472,12 @@ class RemoveJoint(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
+    def poll(cls, context):
         return FnModel.is_joint_object(context.active_object)
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         obj = context.active_object
         root = FnModel.find_root_object(obj)
-        logger.info(f"Removing joint: {obj.name}")
         utils.selectAObject(obj)  # ensure this is the only one object select
         bpy.ops.object.delete(use_global=True)
         if root:
@@ -507,7 +492,7 @@ class UpdateRigidBodyWorld(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     @staticmethod
-    def __get_rigid_body_world_objects() -> Tuple[bpy.types.Collection, bpy.types.Collection]:
+    def __get_rigid_body_world_objects():
         rigid_body.setRigidBodyWorldEnabled(True)
         rbw = bpy.context.scene.rigidbody_world
         if not rbw.collection:
@@ -522,21 +507,21 @@ class UpdateRigidBodyWorld(bpy.types.Operator):
 
         return rbw.collection.objects, rbw.constraints.objects
 
-    def execute(self, context: bpy.types.Context) -> Set[str]:
+    def execute(self, context):
         scene = context.scene
         scene_objs = set(scene.objects)
         scene_objs.union(o for x in scene.objects if x.instance_type == "COLLECTION" and x.instance_collection for o in x.instance_collection.objects)
 
-        def _update_group(obj: bpy.types.Object, group: bpy.types.Collection) -> bool:
+        def _update_group(obj, group):
             if obj in scene_objs:
                 if obj not in group.values():
                     group.link(obj)
                 return True
-            elif obj in group.values():
+            if obj in group.values():
                 group.unlink(obj)
             return False
 
-        def _references(obj: bpy.types.Object) -> Generator[bpy.types.Object, None, None]:
+        def _references(obj):
             yield obj
             if getattr(obj, "proxy", None):
                 yield from _references(obj.proxy)
@@ -553,7 +538,6 @@ class UpdateRigidBodyWorld(bpy.types.Operator):
         # Object.rigid_body are removed,
         # but Object.rigid_body_constraint are retained.
         # Therefore, it must be checked with Object.mmd_type.
-        logger.info("Updating rigid body world objects")
         for i in (x for x in objects if x.mmd_type == "RIGID_BODY"):
             if not _update_group(i, rb_objs):
                 continue
@@ -568,7 +552,6 @@ class UpdateRigidBodyWorld(bpy.types.Operator):
             # TODO Modify mmd_rigid to allow recovery of the remaining rigidbody parameters.
             # mass, friction, restitution, linear_dumping, angular_dumping
 
-        logger.info("Updating rigid body constraints")
         for i in (x for x in objects if x.rigid_body_constraint):
             if not _update_group(i, rbc_objs):
                 continue
@@ -579,7 +562,6 @@ class UpdateRigidBodyWorld(bpy.types.Operator):
             rbc.object2 = rb_map.get(rbc.object2, rbc.object2)
 
         if need_rebuild_physics:
-            logger.info("Rebuilding physics for models")
             for root_object in scene.objects:
                 if root_object.mmd_type != "ROOT":
                     continue

core/mmd/operators/sdef.py

@@ -1,23 +1,18 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2018 MMD Tools authors
+# This file is part of MMD Tools.
 
-from typing import Set, Tuple
+from typing import Set
 
 import bpy
-from bpy.types import Operator, Context, Object
+from bpy.types import Operator
 
 from ..core.model import FnModel
 from ..core.sdef import FnSDEF
-from ....core.logging_setup import logger
 
 
-def _get_target_objects(context: Context) -> Tuple[Set[Object], Set[Object]]:
-    root_objects: Set[Object] = set()
-    selected_objects: Set[Object] = set()
+def _get_target_objects(context):
+    root_objects: Set[bpy.types.Object] = set()
+    selected_objects: Set[bpy.types.Object] = set()
     for i in context.selected_objects:
         if i.type == "MESH":
             selected_objects.add(i)
@@ -41,13 +36,11 @@ class ResetSDEFCache(Operator):
     bl_description = "Reset MMD SDEF cache of selected objects and clean unused cache"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: Context) -> Set[str]:
+    def execute(self, context):
         target_meshes, _ = _get_target_objects(context)
-        logger.info(f"Resetting SDEF cache for {len(target_meshes)} objects")
         for i in target_meshes:
             FnSDEF.clear_cache(i)
         FnSDEF.clear_cache(unused_only=True)
-        logger.debug("SDEF cache reset completed")
         return {"FINISHED"}
 
 
@@ -78,20 +71,19 @@ class BindSDEF(Operator):
         default=False,
     )
 
-    def invoke(self, context: Context, event: bpy.types.Event) -> Set[str]:
+    def invoke(self, context, event):
         vm = context.window_manager
         return vm.invoke_props_dialog(self)
 
-    def execute(self, context: Context) -> Set[str]:
+    # TODO: Utility Functionalize
+    def execute(self, context):
         target_meshes, root_objects = _get_target_objects(context)
-        logger.info(f"Binding SDEF for {len(target_meshes)} objects with mode={self.mode}, skip={self.use_skip}, scale={self.use_scale}")
 
         for r in root_objects:
             r.mmd_root.use_sdef = True
 
         param = ((None, False, True)[int(self.mode)], self.use_skip, self.use_scale)
         count = sum(FnSDEF.bind(i, *param) for i in target_meshes)
-        logger.info(f"Successfully bound SDEF for {count} of {len(target_meshes)} meshes")
         self.report({"INFO"}, f"Binded {count} of {len(target_meshes)} selected mesh(es)")
         return {"FINISHED"}
 
@@ -102,15 +94,13 @@ class UnbindSDEF(Operator):
     bl_description = "Unbind MMD SDEF data of selected objects"
     bl_options = {"REGISTER", "UNDO", "INTERNAL"}
 
-    def execute(self, context: Context) -> Set[str]:
+    # TODO: Utility Functionalize
+    def execute(self, context):
         target_meshes, root_objects = _get_target_objects(context)
-        logger.info(f"Unbinding SDEF for {len(target_meshes)} objects")
-        
         for i in target_meshes:
             FnSDEF.unbind(i)
 
         for r in root_objects:
             r.mmd_root.use_sdef = False
 
-        logger.debug("SDEF unbinding completed")
         return {"FINISHED"}

core/mmd/operators/translations.py

@@ -1,10 +1,8 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2021 MMD Tools authors
+# This file is part of MMD Tools.
 
+import csv
+import os
 from typing import TYPE_CHECKING, cast
 
 import bpy
@@ -14,7 +12,11 @@ from ..core.translations import MMD_DATA_TYPE_TO_HANDLERS, FnTranslations
 from ..translations import DictionaryEnum
 
 if TYPE_CHECKING:
-    from ..properties.translations import MMDTranslation, MMDTranslationElement, MMDTranslationElementIndex
+    from ..properties.translations import (
+        MMDTranslation,
+        MMDTranslationElement,
+        MMDTranslationElementIndex,
+    )
 
 
 class TranslateMMDModel(bpy.types.Operator):
@@ -77,7 +79,8 @@ class TranslateMMDModel(bpy.types.Operator):
     @classmethod
     def poll(cls, context):
         obj = context.active_object
-        return obj in context.selected_objects and FnModel.find_root_object(obj)
+        root = FnModel.find_root_object(obj)
+        return obj is not None and obj in context.selected_objects and root is not None
 
     def invoke(self, context, event):
         vm = context.window_manager
@@ -87,7 +90,7 @@ class TranslateMMDModel(bpy.types.Operator):
         try:
             self.__translator = DictionaryEnum.get_translator(self.dictionary)
         except Exception as e:
-            self.report({"ERROR"}, "Failed to load dictionary: %s" % e)
+            self.report({"ERROR"}, f"Failed to load dictionary: {e}")
             return {"CANCELLED"}
 
         obj = context.active_object
@@ -96,7 +99,7 @@ class TranslateMMDModel(bpy.types.Operator):
 
         if "MMD" in self.modes:
             for i in self.types:
-                getattr(self, "translate_%s" % i.lower())(rig)
+                getattr(self, f"translate_{i.lower()}")(rig)
 
         if "BLENDER" in self.modes:
             self.translate_blender_names(rig)
@@ -104,7 +107,11 @@ class TranslateMMDModel(bpy.types.Operator):
         translator = self.__translator
         txt = translator.save_fails()
         if translator.fails:
-            self.report({"WARNING"}, "Failed to translate %d names, see '%s' in text editor" % (len(translator.fails), txt.name))
+            self.report(
+                {"WARNING"},
+                "Failed to translate %d names, see '%s' in text editor"
+                % (len(translator.fails), txt.name),
+            )
         return {"FINISHED"}
 
     def translate(self, name_j, name_e):
@@ -130,7 +137,7 @@ class TranslateMMDModel(bpy.types.Operator):
 
         if "DISPLAY" in self.types:
             g: bpy.types.BoneCollection
-            for g in cast(bpy.types.Armature, rig.armature().data).collections:
+            for g in cast("bpy.types.Armature", rig.armature().data).collections:
                 g.name = self.translate(g.name, g.name)
 
         if "PHYSICS" in self.types:
@@ -153,7 +160,9 @@ class TranslateMMDModel(bpy.types.Operator):
         comment_text = bpy.data.texts.get(mmd_root.comment_text, None)
         comment_e_text = bpy.data.texts.get(mmd_root.comment_e_text, None)
         if comment_text and comment_e_text:
-            comment_e = self.translate(comment_text.as_string(), comment_e_text.as_string())
+            comment_e = self.translate(
+                comment_text.as_string(), comment_e_text.as_string(),
+            )
             comment_e_text.from_string(comment_e)
 
     def translate_bone(self, rig):
@@ -167,7 +176,7 @@ class TranslateMMDModel(bpy.types.Operator):
         mmd_root = rig.rootObject().mmd_root
         attr_list = ("group", "vertex", "bone", "uv", "material")
         prefix_list = ("G_", "", "B_", "UV_", "M_")
-        for attr, prefix in zip(attr_list, prefix_list):
+        for attr, prefix in zip(attr_list, prefix_list, strict=False):
             for m in getattr(mmd_root, attr + "_morphs", []):
                 m.name_e = self.translate(m.name, m.name_e)
                 if not prefix:
@@ -182,7 +191,9 @@ class TranslateMMDModel(bpy.types.Operator):
         for m in rig.materials():
             if m is None:
                 continue
-            m.mmd_material.name_e = self.translate(m.mmd_material.name_j, m.mmd_material.name_e)
+            m.mmd_material.name_e = self.translate(
+                m.mmd_material.name_j, m.mmd_material.name_e,
+            )
 
     def translate_display(self, rig):
         mmd_root = rig.rootObject().mmd_root
@@ -200,10 +211,24 @@ class TranslateMMDModel(bpy.types.Operator):
 DEFAULT_SHOW_ROW_COUNT = 20
 
 
-class MMD_TOOLS_UL_MMDTranslationElementIndex(bpy.types.UIList):
-    def draw_item(self, context, layout: bpy.types.UILayout, data, mmd_translation_element_index: "MMDTranslationElementIndex", icon, active_data, active_propname, index: int):
-        mmd_translation_element: "MMDTranslationElement" = data.translation_elements[mmd_translation_element_index.value]
-        MMD_DATA_TYPE_TO_HANDLERS[mmd_translation_element.type].draw_item(layout, mmd_translation_element, index)
+class MMD_TOOLS_LOCAL_UL_MMDTranslationElementIndex(bpy.types.UIList):
+    def draw_item(
+        self,
+        context,
+        layout: bpy.types.UILayout,
+        data,
+        mmd_translation_element_index: "MMDTranslationElementIndex",
+        icon,
+        active_data,
+        active_propname,
+        index: int,
+    ):
+        mmd_translation_element: MMDTranslationElement = data.translation_elements[
+            mmd_translation_element_index.value
+        ]
+        MMD_DATA_TYPE_TO_HANDLERS[mmd_translation_element.type].draw_item(
+            layout, mmd_translation_element, index,
+        )
 
 
 class RestoreMMDDataReferenceOperator(bpy.types.Operator):
@@ -216,9 +241,15 @@ class RestoreMMDDataReferenceOperator(bpy.types.Operator):
     restore_value: bpy.props.StringProperty()
 
     def execute(self, context: bpy.types.Context):
-        root_object = FnModel.find_root_object(context.object)
-        mmd_translation_element_index = root_object.mmd_root.translation.filtered_translation_element_indices[self.index].value
-        mmd_translation_element = root_object.mmd_root.translation.translation_elements[mmd_translation_element_index]
+        root_object = FnModel.find_root_object(context.active_object)
+        mmd_translation_element_index = (
+            root_object.mmd_root.translation.filtered_translation_element_indices[
+                self.index
+            ].value
+        )
+        mmd_translation_element = root_object.mmd_root.translation.translation_elements[
+            mmd_translation_element_index
+        ]
         setattr(mmd_translation_element, self.prop_name, self.restore_value)
 
         return {"FINISHED"}
@@ -231,7 +262,8 @@ class GlobalTranslationPopup(bpy.types.Operator):
 
     @classmethod
     def poll(cls, context):
-        return FnModel.find_root_object(context.object) is not None
+        root = FnModel.find_root_object(context.active_object)
+        return root is not None
 
     def draw(self, _context):
         layout = self.layout
@@ -244,13 +276,33 @@ class GlobalTranslationPopup(bpy.types.Operator):
 
         group = row.row(align=True, heading="is Blank:")
         group.alignment = "RIGHT"
-        group.prop(mmd_translation, "filter_japanese_blank", toggle=True, text="Japanese")
+        group.prop(
+            mmd_translation, "filter_japanese_blank", toggle=True, text="Japanese",
+        )
         group.prop(mmd_translation, "filter_english_blank", toggle=True, text="English")
 
         group = row.row(align=True)
-        group.prop(mmd_translation, "filter_restorable", toggle=True, icon="FILE_REFRESH", icon_only=True)
-        group.prop(mmd_translation, "filter_selected", toggle=True, icon="RESTRICT_SELECT_OFF", icon_only=True)
-        group.prop(mmd_translation, "filter_visible", toggle=True, icon="HIDE_OFF", icon_only=True)
+        group.prop(
+            mmd_translation,
+            "filter_restorable",
+            toggle=True,
+            icon="FILE_REFRESH",
+            icon_only=True,
+        )
+        group.prop(
+            mmd_translation,
+            "filter_selected",
+            toggle=True,
+            icon="RESTRICT_SELECT_OFF",
+            icon_only=True,
+        )
+        group.prop(
+            mmd_translation,
+            "filter_visible",
+            toggle=True,
+            icon="HIDE_OFF",
+            icon_only=True,
+        )
 
         col = layout.column(align=True)
         box = col.box().column(align=True)
@@ -262,11 +314,14 @@ class GlobalTranslationPopup(bpy.types.Operator):
         row.label(text="", icon="RESTRICT_SELECT_OFF")
         row.label(text="", icon="HIDE_OFF")
 
-        if len(mmd_translation.filtered_translation_element_indices) > DEFAULT_SHOW_ROW_COUNT:
+        if (
+            len(mmd_translation.filtered_translation_element_indices)
+            > DEFAULT_SHOW_ROW_COUNT
+        ):
             row.label(text="", icon="BLANK1")
 
         col.template_list(
-            "MMD_TOOLS_UL_MMDTranslationElementIndex",
+            "mmd_tools_UL_MMDTranslationElementIndex",
             "",
             mmd_translation,
             "filtered_translation_element_indices",
@@ -281,7 +336,12 @@ class GlobalTranslationPopup(bpy.types.Operator):
 
         box.separator()
         row = box.row()
-        row.prop(mmd_translation, "batch_operation_script_preset", text="Preset", icon="CON_TRANSFORM_CACHE")
+        row.prop(
+            mmd_translation,
+            "batch_operation_script_preset",
+            text="Preset",
+            icon="CON_TRANSFORM_CACHE",
+        )
         row.operator(ExecuteTranslationBatchOperator.bl_idname, text="Execute")
 
         box.separator()
@@ -289,18 +349,25 @@ class GlobalTranslationPopup(bpy.types.Operator):
         translation_box.label(text="Dictionaries:", icon="HELP")
         row = translation_box.row()
         row.prop(mmd_translation, "dictionary", text="to_english")
-        # row.operator(ExecuteTranslationScriptOperator.bl_idname, text='Write to .csv')
 
         translation_box.separator()
         row = translation_box.row()
         row.prop(mmd_translation, "dictionary", text="replace")
 
+        # CSV import/export
+        box.separator()
+        translation_box = box.box().column(align=True)
+        translation_box.label(text="CSV:", icon="FILE_TEXT")
+        row = translation_box.row()
+        row.operator(ImportTranslationCSVOperator.bl_idname, text="Import CSV")
+        row.operator(ExportTranslationCSVOperator.bl_idname, text="Export CSV")
+
     def invoke(self, context: bpy.types.Context, _event):
-        root_object = FnModel.find_root_object(context.object)
+        root_object = FnModel.find_root_object(context.active_object)
         if root_object is None:
             return {"CANCELLED"}
 
-        mmd_translation: "MMDTranslation" = root_object.mmd_root.translation
+        mmd_translation: MMDTranslation = root_object.mmd_root.translation
         self._mmd_translation = mmd_translation
         FnTranslations.clear_data(mmd_translation)
         FnTranslations.collect_data(mmd_translation)
@@ -309,7 +376,7 @@ class GlobalTranslationPopup(bpy.types.Operator):
         return context.window_manager.invoke_props_dialog(self, width=800)
 
     def execute(self, context):
-        root_object = FnModel.find_root_object(context.object)
+        root_object = FnModel.find_root_object(context.active_object)
         if root_object is None:
             return {"CANCELLED"}
 
@@ -325,12 +392,175 @@ class ExecuteTranslationBatchOperator(bpy.types.Operator):
     bl_options = {"INTERNAL"}
 
     def execute(self, context: bpy.types.Context):
-        root = FnModel.find_root_object(context.object)
+        root = FnModel.find_root_object(context.active_object)
         if root is None:
             return {"CANCELLED"}
 
         fails, text = FnTranslations.execute_translation_batch(root)
         if fails:
-            self.report({"WARNING"}, "Failed to translate %d names, see '%s' in text editor" % (len(fails), text.name))
+            self.report(
+                {"WARNING"},
+                "Failed to translate %d names, see '%s' in text editor"
+                % (len(fails), text.name),
+            )
 
         return {"FINISHED"}
+
+
+class ExportTranslationCSVOperator(bpy.types.Operator):
+    bl_idname = "mmd_tools.export_translation_csv"
+    bl_description = "Export CSV for external translation."
+    bl_label = "Export Translation CSV"
+
+    filter_glob: bpy.props.StringProperty(default="*.csv", options={"HIDDEN"})
+    filename_ext = ".csv"
+    filepath: bpy.props.StringProperty(
+        name="File Path",
+        description="Path to save the translation CSV",
+        subtype="FILE_PATH",
+        default="mmd_translation.csv",
+    )
+
+    def _ensure_csv_extension(self):
+        """Ensure the file path ends with a .csv extension (case-insensitive)."""
+        if not self.filepath.lower().endswith(".csv"):
+            self.filepath = bpy.path.ensure_ext(self.filepath, ".csv")
+
+    def invoke(self, context, event):
+        self._ensure_csv_extension()
+        context.window_manager.fileselect_add(self)
+        return {"RUNNING_MODAL"}
+
+    def execute(self, context):
+        self._ensure_csv_extension()
+        root_object = FnModel.find_root_object(context.active_object)
+        if root_object is None:
+            self.report({"ERROR"}, "Root object not found")
+            return {"CANCELLED"}
+
+        mmd_translation = root_object.mmd_root.translation
+
+        try:
+            with open(self.filepath, "w", newline="", encoding="utf-8") as csvfile:
+                writer = csv.writer(csvfile)
+                writer.writerow(["type", "blender", "japanese", "english"])
+                for idx in mmd_translation.filtered_translation_element_indices:
+                    element = mmd_translation.translation_elements[idx.value]
+                    writer.writerow(
+                        [element.type, element.name, element.name_j, element.name_e],
+                    )
+        except Exception as e:
+            self.report({"ERROR"}, f"Failed to write CSV: {e}")
+            return {"CANCELLED"}
+
+        self.report({"INFO"}, f"Exported to {os.path.basename(self.filepath)}")
+        return {"FINISHED"}
+
+
+class ImportTranslationCSVOperator(bpy.types.Operator):
+    bl_idname = "mmd_tools.import_translation_csv"
+    bl_description = "Import translated CSV."
+    bl_label = "Import Translation CSV"
+
+    only_update_english_name: bpy.props.BoolProperty(
+        name="Only Update English Name",
+        description="(Enabled by default) Only update English name (name_e). otherwise, update all names when different",
+        default=True,
+    )
+
+    filter_glob: bpy.props.StringProperty(default="*.csv", options={"HIDDEN"})
+    filepath: bpy.props.StringProperty(
+        name="File Path",
+        description="Path to import the translation CSV",
+        subtype="FILE_PATH",
+        default="*.csv",
+    )
+
+    def invoke(self, context, event):
+        context.window_manager.fileselect_add(self)
+        return {"RUNNING_MODAL"}
+
+    def execute(self, context):
+        root_object = FnModel.find_root_object(context.active_object)
+        if root_object is None:
+            self.report({"ERROR"}, "Root object not found")
+            return {"CANCELLED"}
+
+        mmd_translation = root_object.mmd_root.translation
+        updated_count = 0
+        warnings = []
+
+        try:
+            with open(self.filepath, encoding="utf-8") as csvfile:
+                reader = csv.DictReader(csvfile)
+                required_headers = {"blender", "japanese", "english"}
+                if not required_headers.issubset(set(reader.fieldnames or [])):
+                    missing = required_headers - set(reader.fieldnames or [])
+                    self.report(
+                        {"ERROR"},
+                        f"Missing required headers in CSV: {', '.join(missing)}",
+                    )
+                    return {"CANCELLED"}
+
+                visible_indices = [
+                    i.value
+                    for i in mmd_translation.filtered_translation_element_indices
+                ]
+                translation_elements_list = list(mmd_translation.translation_elements)
+                row_count = 0
+
+                for row in reader:
+                    if row_count >= len(visible_indices):
+                        row_count += 1
+                        continue
+
+                    element = translation_elements_list[visible_indices[row_count]]
+
+                    b_name = row.get("blender", "").strip()
+                    j_name = row.get("japanese", "").strip()
+                    e_name = row.get("english", "").strip()
+
+                    updated = False
+                    if self.only_update_english_name:
+                        if element.name_e != e_name:
+                            element.name_e = e_name
+                            updated = True
+                    else:
+                        if element.name != b_name:
+                            element.name = b_name
+                            updated = True
+                        if element.name_j != j_name:
+                            element.name_j = j_name
+                            updated = True
+                        if element.name_e != e_name:
+                            element.name_e = e_name
+                            updated = True
+
+                    if updated:
+                        updated_count += 1
+
+                    row_count += 1
+
+                # Output warnings
+                if row_count > len(visible_indices):
+                    warnings.append(
+                        f"{row_count - len(visible_indices)} extra lines in CSV! (ignored)",
+                    )
+                elif row_count < len(visible_indices):
+                    warnings.append(
+                        f"{len(visible_indices) - row_count} missing lines in CSV! (aborted translation)",
+                    )
+        except Exception as e:
+            self.report({"ERROR"}, f"Failed to read CSV: {e}")
+            return {"CANCELLED"}
+
+        FnTranslations.update_query(mmd_translation)
+
+        msg = f"Imported {updated_count} entries from CSV"
+        if warnings:
+            for w in warnings:
+                self.report({"WARNING"}, w)
+            msg += " with warnings"
+
+        self.report({"INFO"}, msg)
+        return {"FINISHED"}

core/mmd/operators/view.py

@@ -1,49 +1,43 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
 import re
-from typing import Optional, Tuple, List, Set, Dict, Any, Generator, Callable, Union, Type, Iterator
 
-from bpy.types import Operator, Context
-from mathutils import Matrix, Vector, Quaternion
-
-from ...logging_setup import logger
+from bpy.types import Operator
+from mathutils import Matrix, Quaternion
 
 
 class _SetShadingBase:
-    bl_options: Set[str] = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER", "UNDO"}
 
     @staticmethod
-    def _get_view3d_spaces(context: Context) -> Iterator[Any]:
+    def _get_view3d_spaces(context):
         if getattr(context.area, "type", None) == "VIEW_3D":
             return (context.area.spaces[0],)
         return (area.spaces[0] for area in getattr(context.screen, "areas", ()) if area.type == "VIEW_3D")
 
     @staticmethod
-    def _reset_color_management(context: Context, use_display_device: bool = True) -> None:
+    def _reset_color_management(context, use_display_device=True):
         try:
             context.scene.display_settings.display_device = ("None", "sRGB")[use_display_device]
         except TypeError:
             pass
 
     @staticmethod
-    def _reset_material_shading(context: Context, use_shadeless: bool = False) -> None:
+    def _reset_material_shading(context, use_shadeless=False):
         for i in (x for x in context.scene.objects if x.type == "MESH" and x.mmd_type == "NONE"):
             for s in i.material_slots:
                 if s.material is None:
                     continue
+                # use_nodes is deprecated in 5.0 but harmless to set
                 s.material.use_nodes = False
                 s.material.use_shadeless = use_shadeless
 
-    def execute(self, context: Context) -> Dict[str, str]:
-        context.scene.render.engine = "BLENDER_EEVEE_NEXT"
-        logger.debug(f"Setting render engine to BLENDER_EEVEE_NEXT")
+    def execute(self, context):
+        # Changed from BLENDER_EEVEE_NEXT to BLENDER_EEVEE for Blender 5.0
+        context.scene.render.engine = "BLENDER_EEVEE"
 
-        shading_mode: Optional[str] = getattr(self, "_shading_mode", None)
+        shading_mode = getattr(self, "_shading_mode", None)
         for space in self._get_view3d_spaces(context):
             shading = space.shading
             shading.type = "SOLID"
@@ -51,40 +45,39 @@ class _SetShadingBase:
             shading.color_type = "TEXTURE" if shading_mode else "MATERIAL"
             shading.show_object_outline = False
             shading.show_backface_culling = False
-        logger.debug(f"Applied shading mode: {shading_mode or 'DEFAULT'}")
         return {"FINISHED"}
 
 
 class SetGLSLShading(Operator, _SetShadingBase):
-    bl_idname: str = "mmd_tools.set_glsl_shading"
-    bl_label: str = "GLSL View"
-    bl_description: str = "Use GLSL shading with additional lighting"
+    bl_idname = "mmd_tools.set_glsl_shading"
+    bl_label = "GLSL View"
+    bl_description = "Use GLSL shading with additional lighting"
 
-    _shading_mode: str = "GLSL"
+    _shading_mode = "GLSL"
 
 
 class SetShadelessGLSLShading(Operator, _SetShadingBase):
-    bl_idname: str = "mmd_tools.set_shadeless_glsl_shading"
-    bl_label: str = "Shadeless GLSL View"
-    bl_description: str = "Use only toon shading"
+    bl_idname = "mmd_tools.set_shadeless_glsl_shading"
+    bl_label = "Shadeless GLSL View"
+    bl_description = "Use only toon shading"
 
-    _shading_mode: str = "SHADELESS"
+    _shading_mode = "SHADELESS"
 
 
 class ResetShading(Operator, _SetShadingBase):
-    bl_idname: str = "mmd_tools.reset_shading"
-    bl_label: str = "Reset View"
-    bl_description: str = "Reset to default Blender shading"
+    bl_idname = "mmd_tools.reset_shading"
+    bl_label = "Reset View"
+    bl_description = "Reset to default Blender shading"
 
 
 class FlipPose(Operator):
-    bl_idname: str = "mmd_tools.flip_pose"
-    bl_label: str = "Flip Pose"
-    bl_description: str = "Apply the current pose of selected bones to matching bone on opposite side of X-Axis."
-    bl_options: Set[str] = {"REGISTER", "UNDO"}
+    bl_idname = "mmd_tools.flip_pose"
+    bl_label = "Flip Pose"
+    bl_description = "Apply the current pose of selected bones to matching bone on opposite side of X-Axis."
+    bl_options = {"REGISTER", "UNDO"}
 
     # https://docs.blender.org/manual/en/dev/rigging/armatures/bones/editing/naming.html
-    __LR_REGEX: List[Dict[str, Any]] = [
+    __LR_REGEX = [
         {"re": re.compile(r"^(.+)(RIGHT|LEFT)(\.\d+)?$", re.IGNORECASE), "lr": 1},
         {"re": re.compile(r"^(.+)([\.\- _])(L|R)(\.\d+)?$", re.IGNORECASE), "lr": 2},
         {"re": re.compile(r"^(LEFT|RIGHT)(.+)$", re.IGNORECASE), "lr": 0},
@@ -92,7 +85,7 @@ class FlipPose(Operator):
         {"re": re.compile(r"^(.+)(左|右)(\.\d+)?$"), "lr": 1},
         {"re": re.compile(r"^(左|右)(.+)$"), "lr": 0},
     ]
-    __LR_MAP: Dict[str, str] = {
+    __LR_MAP = {
         "RIGHT": "LEFT",
         "Right": "Left",
         "right": "left",
@@ -108,7 +101,7 @@ class FlipPose(Operator):
     }
 
     @classmethod
-    def flip_name(cls, name: str) -> str:
+    def flip_name(cls, name):
         for regex in cls.__LR_REGEX:
             match = regex["re"].match(name)
             if match:
@@ -126,15 +119,15 @@ class FlipPose(Operator):
         return ""
 
     @staticmethod
-    def __cmul(vec1: Union[Vector, Quaternion], vec2: Tuple[float, float, float, float]) -> Union[Vector, Quaternion]:
-        return type(vec1)([x * y for x, y in zip(vec1, vec2)])
+    def __cmul(vec1, vec2):
+        return type(vec1)([x * y for x, y in zip(vec1, vec2, strict=False)])
 
     @staticmethod
-    def __matrix_compose(loc: Vector, rot: Quaternion, scale: Vector) -> Matrix:
+    def __matrix_compose(loc, rot, scale):
         return (Matrix.Translation(loc) @ rot.to_matrix().to_4x4()) @ Matrix([(scale[0], 0, 0, 0), (0, scale[1], 0, 0), (0, 0, scale[2], 0), (0, 0, 0, 1)])
 
     @classmethod
-    def __flip_pose(cls, matrix_basis: Matrix, bone_src: Any, bone_dest: Any) -> None:
+    def __flip_pose(cls, matrix_basis, bone_src, bone_dest):
         m = bone_dest.bone.matrix_local.to_3x3().transposed()
         mi = bone_src.bone.matrix_local.to_3x3().transposed().inverted() if bone_src != bone_dest else m.inverted()
         loc, rot, scale = matrix_basis.decompose()
@@ -143,16 +136,12 @@ class FlipPose(Operator):
         bone_dest.matrix_basis = cls.__matrix_compose(m @ loc, Quaternion(m @ rot.axis, rot.angle).normalized(), scale)
 
     @classmethod
-    def poll(cls, context: Context) -> bool:
-        return context.active_object and context.active_object.type == "ARMATURE" and context.active_object.mode == "POSE"
+    def poll(cls, context):
+        obj = context.active_object
+        return obj is not None and obj.type == "ARMATURE" and obj.mode == "POSE"
 
-    def execute(self, context: Context) -> Dict[str, str]:
-        logger.info("Executing flip pose operation")
+    def execute(self, context):
         pose_bones = context.active_object.pose.bones
         for b, mat in [(x, x.matrix_basis.copy()) for x in context.selected_pose_bones]:
-            flip_name = self.flip_name(b.name)
-            target_bone = pose_bones.get(flip_name, b)
-            logger.debug(f"Flipping pose from {b.name} to {target_bone.name}")
-            self.__flip_pose(mat, b, target_bone)
-        logger.info("Flip pose operation completed")
+            self.__flip_pose(mat, b, pose_bones.get(self.flip_name(b.name), b))
         return {"FINISHED"}

core/mmd/properties/material.py

@@ -1,90 +1,82 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
 import bpy
-from typing import Optional, Set, Dict, Any, List, Tuple, Union, Type
 
 from .. import utils
 from ..core import material
 from ..core.material import FnMaterial
 from ..core.model import FnModel
 from . import patch_library_overridable
-from ....core.logging_setup import logger
 
 
-def _mmd_material_update_ambient_color(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_ambient_color(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_ambient_color()
 
 
-def _mmd_material_update_diffuse_color(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_diffuse_color(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_diffuse_color()
 
 
-def _mmd_material_update_alpha(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_alpha(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_alpha()
 
 
-def _mmd_material_update_specular_color(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_specular_color(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_specular_color()
 
 
-def _mmd_material_update_shininess(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_shininess(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_shininess()
 
 
-def _mmd_material_update_is_double_sided(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_is_double_sided(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_is_double_sided()
 
 
-def _mmd_material_update_sphere_texture_type(prop: "MMDMaterial", context: bpy.types.Context) -> None:
+def _mmd_material_update_sphere_texture_type(prop: "MMDMaterial", context):
     FnMaterial(prop.id_data).update_sphere_texture_type(context.active_object)
 
 
-def _mmd_material_update_toon_texture(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_toon_texture(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_toon_texture()
 
 
-def _mmd_material_update_enabled_drop_shadow(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_enabled_drop_shadow(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_drop_shadow()
 
 
-def _mmd_material_update_enabled_self_shadow_map(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_enabled_self_shadow_map(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_self_shadow_map()
 
 
-def _mmd_material_update_enabled_self_shadow(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_enabled_self_shadow(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_self_shadow()
 
 
-def _mmd_material_update_enabled_toon_edge(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_enabled_toon_edge(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_enabled_toon_edge()
 
 
-def _mmd_material_update_edge_color(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_edge_color(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_edge_color()
 
 
-def _mmd_material_update_edge_weight(prop: "MMDMaterial", _context: bpy.types.Context) -> None:
+def _mmd_material_update_edge_weight(prop: "MMDMaterial", _context):
     FnMaterial(prop.id_data).update_edge_weight()
 
 
-def _mmd_material_get_name_j(prop: "MMDMaterial") -> str:
+def _mmd_material_get_name_j(prop: "MMDMaterial"):
     return prop.get("name_j", "")
 
 
-def _mmd_material_set_name_j(prop: "MMDMaterial", value: str) -> None:
+def _mmd_material_set_name_j(prop: "MMDMaterial", value: str):
     prop_value = value
     if prop_value and prop_value != prop.get("name_j"):
         root = FnModel.find_root_object(bpy.context.active_object)
         if root is None:
-            logger.debug(f"No root object found, using unique name for material: {value}")
             prop_value = utils.unique_name(value, {mat.mmd_material.name_j for mat in bpy.data.materials})
         else:
-            logger.debug(f"Root object found, using unique name for material within model: {value}")
             prop_value = utils.unique_name(value, {mat.mmd_material.name_j for mat in FnModel.iterate_materials(root)})
 
     prop["name_j"] = prop_value
@@ -279,15 +271,13 @@ class MMDMaterial(bpy.types.PropertyGroup):
         description="Comment",
     )
 
-    def is_id_unique(self) -> bool:
+    def is_id_unique(self):
         return self.material_id < 0 or not next((m for m in bpy.data.materials if m.mmd_material != self and m.mmd_material.material_id == self.material_id), None)
 
     @staticmethod
-    def register() -> None:
-        logger.debug("Registering MMD material properties")
+    def register():
         bpy.types.Material.mmd_material = patch_library_overridable(bpy.props.PointerProperty(type=MMDMaterial))
 
     @staticmethod
-    def unregister() -> None:
-        logger.debug("Unregistering MMD material properties")
+    def unregister():
         del bpy.types.Material.mmd_material

core/mmd/properties/morph.py

@@ -1,38 +1,34 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2015 MMD Tools authors
+# This file is part of MMD Tools.
 
 import bpy
-from typing import Optional, List, Dict, Any, Set, Tuple, Union, TypeVar, Type
-from bpy.types import PropertyGroup, Object, ShapeKey
 
 from .. import utils
 from ..core.bone import FnBone
 from ..core.material import FnMaterial
 from ..core.model import FnModel, Model
 from ..core.morph import FnMorph
-from ....core.logging_setup import logger
 
 
 def _morph_base_get_name(prop: "_MorphBase") -> str:
     return prop.get("name", "")
 
 
-def _morph_base_set_name(prop: "_MorphBase", value: str) -> None:
+def _morph_base_set_name(prop: "_MorphBase", value: str):
     mmd_root = prop.id_data.mmd_root
-    morph_type = "%s_morphs" % prop.bl_rna.identifier[:-5].lower()
+    # morph_type = mmd_root.active_morph_type
+    morph_type = f"{prop.bl_rna.identifier[:-5].lower()}_morphs"
+    # assert(prop.bl_rna.identifier.endswith('Morph'))
+    # logging.debug('_set_name: %s %s %s', prop, value, morph_type)
     prop_name = prop.get("name", None)
     if prop_name == value:
         return
 
-    used_names: Set[str] = {x.name for x in getattr(mmd_root, morph_type) if x != prop}
+    used_names = {x.name for x in getattr(mmd_root, morph_type) if x != prop}
     value = utils.unique_name(value, used_names)
     if prop_name is not None:
         if morph_type == "vertex_morphs":
-            kb_list: Dict[str, List[ShapeKey]] = {}
+            kb_list = {}
             for mesh in FnModel.iterate_mesh_objects(prop.id_data):
                 for kb in getattr(mesh.data.shape_keys, "key_blocks", ()):
                     kb_list.setdefault(kb.name, []).append(kb)
@@ -43,7 +39,7 @@ def _morph_base_set_name(prop: "_MorphBase", value: str) -> None:
                     kb.name = value
 
         elif morph_type == "uv_morphs":
-            vg_list: Dict[str, List[Any]] = {}
+            vg_list = {}
             for mesh in FnModel.iterate_mesh_objects(prop.id_data):
                 for vg, n, x in FnMorph.get_uv_morph_vertex_groups(mesh):
                     vg_list.setdefault(n, []).append(vg)
@@ -72,7 +68,6 @@ def _morph_base_set_name(prop: "_MorphBase", value: str) -> None:
                 kb.name = value
 
     prop["name"] = value
-    logger.debug(f"Renamed morph from '{prop_name}' to '{value}'")
 
 
 class _MorphBase:
@@ -101,12 +96,16 @@ class _MorphBase:
     )
 
 
+def _bone_morph_data_update_bone_id(prop: "BoneMorphData", context: bpy.types.Context):
+    pass  # Empty function is sufficient to trigger UI update
+
+
 def _bone_morph_data_get_bone(prop: "BoneMorphData") -> str:
-    bone_id: int = prop.get("bone_id", -1)
+    bone_id = prop.get("bone_id", -1)
     if bone_id < 0:
         return ""
-    root_object: Object = prop.id_data
-    armature_object: Optional[Object] = FnModel.find_armature_object(root_object)
+    root_object = prop.id_data
+    armature_object = FnModel.find_armature_object(root_object)
     if armature_object is None:
         return ""
     pose_bone = FnBone.find_pose_bone_by_bone_id(armature_object, bone_id)
@@ -115,9 +114,9 @@ def _bone_morph_data_get_bone(prop: "BoneMorphData") -> str:
     return pose_bone.name
 
 
-def _bone_morph_data_set_bone(prop: "BoneMorphData", value: str) -> None:
-    root: Object = prop.id_data
-    arm: Optional[Object] = FnModel.find_armature_object(root)
+def _bone_morph_data_set_bone(prop: "BoneMorphData", value: str):
+    root = prop.id_data
+    arm = FnModel.find_armature_object(root)
 
     # Load the library_override file. This function is triggered when loading, but the arm obj cannot be found.
     # The arm obj is exist, but the relative relationship has not yet been established.
@@ -125,14 +124,13 @@ def _bone_morph_data_set_bone(prop: "BoneMorphData", value: str) -> None:
         return
 
     if value not in arm.pose.bones.keys():
-        prop["bone_id"] = -1
+        prop.bone_id = -1
         return
     pose_bone = arm.pose.bones[value]
-    prop["bone_id"] = FnBone.get_or_assign_bone_id(pose_bone)
-    logger.debug(f"Set bone morph data bone to '{value}' with ID {prop['bone_id']}")
+    prop.bone_id = FnBone.get_or_assign_bone_id(pose_bone)
 
 
-def _bone_morph_data_update_location_or_rotation(prop: "BoneMorphData", _context: bpy.types.Context) -> None:
+def _bone_morph_data_update_location_or_rotation(prop: "BoneMorphData", _context):
     if not prop.name.startswith("mmd_bind"):
         return
     arm = FnModel(prop.id_data).morph_slider.dummy_armature
@@ -141,12 +139,9 @@ def _bone_morph_data_update_location_or_rotation(prop: "BoneMorphData", _context
         if bone:
             bone.location = prop.location
             bone.rotation_quaternion = prop.rotation.__class__(*prop.rotation.to_axis_angle())  # Fix for consistency
-            logger.debug(f"Updated bone morph data location/rotation for '{prop.name}'")
 
 
 class BoneMorphData(bpy.types.PropertyGroup):
-    """ """
-
     bone: bpy.props.StringProperty(
         name="Bone",
         description="Target bone",
@@ -156,6 +151,7 @@ class BoneMorphData(bpy.types.PropertyGroup):
 
     bone_id: bpy.props.IntProperty(
         name="Bone ID",
+        update=_bone_morph_data_update_bone_id,
     )
 
     location: bpy.props.FloatVectorProperty(
@@ -191,61 +187,53 @@ class BoneMorph(_MorphBase, bpy.types.PropertyGroup):
     )
 
 
-def _material_morph_data_get_material(prop: "MaterialMorphData") -> str:
-    mat_p = prop.get("material_data", None)
-    if mat_p is not None:
-        return mat_p.name
+def _material_morph_data_get_material(prop: "MaterialMorphData"):
+    mat_data = prop.get("material_data", None)
+    if mat_data is not None:
+        return mat_data.name
     return ""
 
 
-def _material_morph_data_set_material(prop: "MaterialMorphData", value: str) -> None:
+def _material_morph_data_set_material(prop: "MaterialMorphData", value: str):
     if value not in bpy.data.materials:
-        prop["material_data"] = None
-        prop["material_id"] = -1
-        logger.debug(f"Material '{value}' not found, setting material_data to None")
+        prop.material_data = None
+        prop.material_id = -1
     else:
         mat = bpy.data.materials[value]
         fnMat = FnMaterial(mat)
-        prop["material_data"] = mat
-        prop["material_id"] = fnMat.material_id
-        logger.debug(f"Set material morph data material to '{value}' with ID {fnMat.material_id}")
+        prop.material_data = mat
+        prop.material_id = fnMat.material_id
 
 
-def _material_morph_data_set_related_mesh(prop: "MaterialMorphData", value: str) -> None:
+def _material_morph_data_set_related_mesh(prop: "MaterialMorphData", value: str):
     mesh = FnModel.find_mesh_object_by_name(prop.id_data, value)
     if mesh is not None:
-        prop["related_mesh_data"] = mesh.data
-        logger.debug(f"Set material morph data related mesh to '{value}'")
+        prop.related_mesh_data = mesh.data
     else:
-        prop["related_mesh_data"] = None
-        logger.debug(f"Mesh '{value}' not found, setting related_mesh_data to None")
+        prop.related_mesh_data = None
 
 
-def _material_morph_data_get_related_mesh(prop: "MaterialMorphData") -> str:
-    mesh_p = prop.get("related_mesh_data", None)
-    if mesh_p is not None:
-        return mesh_p.name
+def _material_morph_data_get_related_mesh(prop):
+    mesh_data = prop.get("related_mesh_data", None)
+    if mesh_data is not None:
+        return mesh_data.name
     return ""
 
 
-def _material_morph_data_update_modifiable_values(prop: "MaterialMorphData", _context: bpy.types.Context) -> None:
+def _material_morph_data_update_modifiable_values(prop: "MaterialMorphData", _context):
     if not prop.name.startswith("mmd_bind"):
         return
     from ..core.shader import _MaterialMorph
 
-    mat = prop["material_data"]
-    if mat is not None:
-        _MaterialMorph.update_morph_inputs(mat, prop)
-        logger.debug(f"Updated material morph modifiable values for '{prop.name}'")
+    mat_data = prop.get("material_data", None)
+    if mat_data is not None:
+        _MaterialMorph.update_morph_inputs(mat_data, prop)
     else:
-        for mat in FnModel(prop.id_data).materials():
-            _MaterialMorph.update_morph_inputs(mat, prop)
-            logger.debug(f"Updated material morph modifiable values for all materials")
+        for mat_data in FnModel(prop.id_data).materials():
+            _MaterialMorph.update_morph_inputs(mat_data, prop)
 
 
 class MaterialMorphData(bpy.types.PropertyGroup):
-    """ """
-
     related_mesh: bpy.props.StringProperty(
         name="Related Mesh",
         description="Stores a reference to the mesh where this morph data belongs to",
@@ -416,6 +404,9 @@ class UVMorphOffset(bpy.types.PropertyGroup):
         name="UV Offset",
         description="UV offset",
         size=4,
+        # min=-1,
+        # max=1,
+        # precision=3,
         step=0.1,
         default=[0, 0, 0, 0],
     )

core/mmd/properties/pose_bone.py

@@ -1,37 +1,31 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
+
+from typing import cast
 
-from typing import cast, Optional, Any, Union
 import bpy
-from bpy.types import Context, PropertyGroup, PoseBone, Object, Armature
 
 from ..core.bone import FnBone
 from . import patch_library_overridable
-from ....core.logging_setup import logger
 
 
-def _mmd_bone_update_additional_transform(prop: "MMDBone", context: Context) -> None:
-    prop["is_additional_transform_dirty"] = True
+def _mmd_bone_update_additional_transform(prop: "MMDBone", context: bpy.types.Context):
+    prop.is_additional_transform_dirty = True
+    # Apply additional transform (Assembly -> Bone button) (Very Slow)
     p_bone = context.active_pose_bone
     if p_bone and p_bone.mmd_bone.as_pointer() == prop.as_pointer():
-        logger.debug(f"Applying additional transformation for {p_bone.name}")
         FnBone.apply_additional_transformation(prop.id_data)
 
 
-def _mmd_bone_update_additional_transform_influence(prop: "MMDBone", context: Context) -> None:
+def _mmd_bone_update_additional_transform_influence(prop: "MMDBone", context: bpy.types.Context):
     pose_bone = context.active_pose_bone
     if pose_bone and pose_bone.mmd_bone.as_pointer() == prop.as_pointer():
-        logger.debug(f"Updating additional transform influence for {pose_bone.name}")
         FnBone.update_additional_transform_influence(pose_bone)
     else:
-        prop["is_additional_transform_dirty"] = True
+        prop.is_additional_transform_dirty = True
 
 
-def _mmd_bone_get_additional_transform_bone(prop: "MMDBone") -> str:
+def _mmd_bone_get_additional_transform_bone(prop: "MMDBone"):
     arm = prop.id_data
     bone_id = prop.get("additional_transform_bone_id", -1)
     if bone_id < 0:
@@ -42,17 +36,57 @@ def _mmd_bone_get_additional_transform_bone(prop: "MMDBone") -> str:
     return pose_bone.name
 
 
-def _mmd_bone_set_additional_transform_bone(prop: "MMDBone", value: str) -> None:
+def _mmd_bone_set_additional_transform_bone(prop: "MMDBone", value: str):
     arm = prop.id_data
-    prop["is_additional_transform_dirty"] = True
+    prop.is_additional_transform_dirty = True
+
     if value not in arm.pose.bones.keys():
-        prop["additional_transform_bone_id"] = -1
+        prop.additional_transform_bone_id = -1
         return
+
     pose_bone = arm.pose.bones[value]
-    prop["additional_transform_bone_id"] = FnBone.get_or_assign_bone_id(pose_bone)
+    target_bone_id = FnBone.get_or_assign_bone_id(pose_bone)
+
+    if prop.bone_id == target_bone_id:
+        prop.additional_transform_bone_id = -1
+        return
+
+    prop.additional_transform_bone_id = target_bone_id
 
 
-class MMDBone(PropertyGroup):
+def _mmd_bone_update_display_connection(prop: "MMDBone", context: bpy.types.Context):
+    pass  # Empty function is sufficient to trigger UI update
+
+
+def _mmd_bone_get_display_connection_bone(prop: "MMDBone"):
+    arm = prop.id_data
+    bone_id = prop.get("display_connection_bone_id", -1)
+    if bone_id < 0:
+        return ""
+    pose_bone = FnBone.find_pose_bone_by_bone_id(arm, bone_id)
+    if pose_bone is None:
+        return ""
+    return pose_bone.name
+
+
+def _mmd_bone_set_display_connection_bone(prop: "MMDBone", value: str):
+    arm = prop.id_data
+
+    if value not in arm.pose.bones.keys():
+        prop.display_connection_bone_id = -1
+        return
+
+    pose_bone = arm.pose.bones[value]
+    target_bone_id = FnBone.get_or_assign_bone_id(pose_bone)
+
+    if prop.bone_id == target_bone_id:
+        prop.display_connection_bone_id = -1
+        return
+
+    prop.display_connection_bone_id = target_bone_id
+
+
+class MMDBone(bpy.types.PropertyGroup):
     name_j: bpy.props.StringProperty(
         name="Name",
         description="Japanese Name",
@@ -188,12 +222,35 @@ class MMDBone(PropertyGroup):
 
     is_additional_transform_dirty: bpy.props.BoolProperty(name="", default=True)
 
-    def is_id_unique(self) -> bool:
+    display_connection_bone: bpy.props.StringProperty(
+        name="Display Connection Bone",
+        description="Target bone for display connection",
+        set=_mmd_bone_set_display_connection_bone,
+        get=_mmd_bone_get_display_connection_bone,
+    )
+
+    display_connection_bone_id: bpy.props.IntProperty(
+        name="Display Connection Bone ID",
+        description="Bone ID for display connection (PMX displayConnection)",
+        default=-1,
+        update=_mmd_bone_update_display_connection,
+    )
+
+    display_connection_type: bpy.props.EnumProperty(
+        name="Display Connection Type",
+        description="Type of display connection",
+        items=[
+            ("BONE", "Bone", "Connected to a bone"),
+            ("OFFSET", "Offset", "Connected to an offset position"),
+        ],
+        default="OFFSET",
+    )
+
+    def is_id_unique(self):
         return self.bone_id < 0 or not next((b for b in self.id_data.pose.bones if b.mmd_bone != self and b.mmd_bone.bone_id == self.bone_id), None)
 
     @staticmethod
-    def register() -> None:
-        logger.debug("Registering MMDBone properties")
+    def register():
         bpy.types.PoseBone.mmd_bone = patch_library_overridable(bpy.props.PointerProperty(type=MMDBone))
         bpy.types.PoseBone.is_mmd_shadow_bone = patch_library_overridable(bpy.props.BoolProperty(name="is_mmd_shadow_bone", default=False))
         bpy.types.PoseBone.mmd_shadow_bone_type = patch_library_overridable(bpy.props.StringProperty(name="mmd_shadow_bone_type"))
@@ -203,25 +260,24 @@ class MMDBone(PropertyGroup):
                 description="MMD IK toggle is used to import/export animation of IK on-off",
                 update=_pose_bone_update_mmd_ik_toggle,
                 default=True,
-            )
+            ),
         )
 
     @staticmethod
-    def unregister() -> None:
-        logger.debug("Unregistering MMDBone properties")
+    def unregister():
         del bpy.types.PoseBone.mmd_ik_toggle
         del bpy.types.PoseBone.mmd_shadow_bone_type
         del bpy.types.PoseBone.is_mmd_shadow_bone
         del bpy.types.PoseBone.mmd_bone
 
 
-def _pose_bone_update_mmd_ik_toggle(prop: PoseBone, _context: Any) -> None:
+def _pose_bone_update_mmd_ik_toggle(prop: bpy.types.PoseBone, _context):
     v = prop.mmd_ik_toggle
-    armature_object = cast(Object, prop.id_data)
+    armature_object = cast("bpy.types.Object", prop.id_data)
     for b in armature_object.pose.bones:
         for c in b.constraints:
             if c.type == "IK" and c.subtarget == prop.name:
-                logger.debug(f"Updating IK toggle for {b.name} {c.name}")
+                # logging.debug('   %s %s', b.name, c.name)
                 c.influence = v
                 b = b if c.use_tail else b.parent
                 for b in ([b] + b.parent_recursive)[: c.chain_count]:

core/mmd/properties/rigid_body.py

@@ -1,42 +1,35 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
 """Properties for rigid bodies and joints"""
 
 import bpy
-from typing import Optional, Any, Set, List, Dict, Tuple, Union
-from bpy.types import Context, Object, PropertyGroup, Material
 
 from .. import bpyutils
 from ..core import rigid_body
-from ..core.rigid_body import RigidBodyMaterial, FnRigidBody
 from ..core.model import FnModel
+from ..core.rigid_body import FnRigidBody, RigidBodyMaterial
 from . import patch_library_overridable
-from ....core.logging_setup import logger
 
 
-def _updateCollisionGroup(prop: PropertyGroup, _context: Context) -> None:
-    obj: Object = prop.id_data
-    materials: List[Material] = obj.data.materials
+def _updateCollisionGroup(prop, _context):
+    obj = prop.id_data
+    materials = obj.data.materials
     if len(materials) == 0:
         materials.append(RigidBodyMaterial.getMaterial(prop.collision_group_number))
     else:
         obj.material_slots[0].material = RigidBodyMaterial.getMaterial(prop.collision_group_number)
 
 
-def _updateType(prop: PropertyGroup, _context: Context) -> None:
-    obj: Object = prop.id_data
+def _updateType(prop, _context):
+    obj = prop.id_data
     rb = obj.rigid_body
     if rb:
         rb.kinematic = int(prop.type) == rigid_body.MODE_STATIC
 
 
-def _updateShape(prop: PropertyGroup, _context: Context) -> None:
-    obj: Object = prop.id_data
+def _updateShape(prop, _context):
+    obj = prop.id_data
 
     if len(obj.data.vertices) > 0:
         size = prop.size
@@ -47,8 +40,8 @@ def _updateShape(prop: PropertyGroup, _context: Context) -> None:
         rb.collision_shape = prop.shape
 
 
-def _get_bone(prop: PropertyGroup) -> str:
-    obj: Object = prop.id_data
+def _get_bone(prop):
+    obj = prop.id_data
     relation = obj.constraints.get("mmd_tools_rigid_parent", None)
     if relation:
         arm = relation.target
@@ -58,9 +51,9 @@ def _get_bone(prop: PropertyGroup) -> str:
     return prop.get("bone", "")
 
 
-def _set_bone(prop: PropertyGroup, value: str) -> None:
-    bone_name: str = value
-    obj: Object = prop.id_data
+def _set_bone(prop, value):
+    bone_name = value
+    obj = prop.id_data
     relation = obj.constraints.get("mmd_tools_rigid_parent", None)
     if relation is None:
         relation = obj.constraints.new("CHILD_OF")
@@ -81,21 +74,24 @@ def _set_bone(prop: PropertyGroup, value: str) -> None:
     prop["bone"] = bone_name
 
 
-def _get_size(prop: PropertyGroup) -> Tuple[float, float, float]:
+def _get_size(prop):
     if prop.id_data.mmd_type != "RIGID_BODY":
         return (0, 0, 0)
     return FnRigidBody.get_rigid_body_size(prop.id_data)
 
 
-def _set_size(prop: PropertyGroup, value: Tuple[float, float, float]) -> None:
-    obj: Object = prop.id_data
+def _set_size(prop, value):
+    obj = prop.id_data
     assert obj.mode == "OBJECT"  # not support other mode yet
-    shape: str = prop.shape
+    shape = prop.shape
 
     mesh = obj.data
     rb = obj.rigid_body
 
-    if len(mesh.vertices) == 0 or rb is None or rb.collision_shape != shape:
+    current_size = FnRigidBody.get_rigid_body_size(obj)
+    is_zero_size = all(abs(s) < 1e-6 for s in current_size)
+
+    if len(mesh.vertices) == 0 or rb is None or rb.collision_shape != shape or is_zero_size:
         if shape == "SPHERE":
             bpyutils.makeSphere(
                 radius=value[0],
@@ -149,15 +145,15 @@ def _set_size(prop: PropertyGroup, value: Tuple[float, float, float]) -> None:
         mesh.update()
 
 
-def _get_rigid_name(prop: PropertyGroup) -> str:
+def _get_rigid_name(prop):
     return prop.get("name", "")
 
 
-def _set_rigid_name(prop: PropertyGroup, value: str) -> None:
+def _set_rigid_name(prop, value):
     prop["name"] = value
 
 
-class MMDRigidBody(PropertyGroup):
+class MMDRigidBody(bpy.types.PropertyGroup):
     name_j: bpy.props.StringProperty(
         name="Name",
         description="Japanese Name",
@@ -230,18 +226,16 @@ class MMDRigidBody(PropertyGroup):
     )
 
     @staticmethod
-    def register() -> None:
-        logger.debug("Registering MMDRigidBody property")
+    def register():
         bpy.types.Object.mmd_rigid = patch_library_overridable(bpy.props.PointerProperty(type=MMDRigidBody))
 
     @staticmethod
-    def unregister() -> None:
-        logger.debug("Unregistering MMDRigidBody property")
+    def unregister():
         del bpy.types.Object.mmd_rigid
 
 
-def _updateSpringLinear(prop: PropertyGroup, context: Context) -> None:
-    obj: Object = prop.id_data
+def _updateSpringLinear(prop, context):
+    obj = prop.id_data
     rbc = obj.rigid_body_constraint
     if rbc:
         rbc.spring_stiffness_x = prop.spring_linear[0]
@@ -249,8 +243,8 @@ def _updateSpringLinear(prop: PropertyGroup, context: Context) -> None:
         rbc.spring_stiffness_z = prop.spring_linear[2]
 
 
-def _updateSpringAngular(prop: PropertyGroup, context: Context) -> None:
-    obj: Object = prop.id_data
+def _updateSpringAngular(prop, context):
+    obj = prop.id_data
     rbc = obj.rigid_body_constraint
     if rbc and hasattr(rbc, "use_spring_ang_x"):
         rbc.spring_stiffness_ang_x = prop.spring_angular[0]
@@ -258,7 +252,7 @@ def _updateSpringAngular(prop: PropertyGroup, context: Context) -> None:
         rbc.spring_stiffness_ang_z = prop.spring_angular[2]
 
 
-class MMDJoint(PropertyGroup):
+class MMDJoint(bpy.types.PropertyGroup):
     name_j: bpy.props.StringProperty(
         name="Name",
         description="Japanese Name",
@@ -292,12 +286,9 @@ class MMDJoint(PropertyGroup):
     )
 
     @staticmethod
-    def register() -> None:
-        logger.debug("Registering MMDJoint property")
+    def register():
         bpy.types.Object.mmd_joint = patch_library_overridable(bpy.props.PointerProperty(type=MMDJoint))
 
     @staticmethod
-    def unregister() -> None:
-        logger.debug("Unregistering MMDJoint property")
+    def unregister():
         del bpy.types.Object.mmd_joint
-

core/mmd/properties/root.py

@@ -1,16 +1,10 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# This file is part of MMD Tools.
 
 """Properties for MMD model root object"""
 
 import bpy
-from typing import Optional, List, Dict, Any, Set, Tuple, Union, Type, TypeVar, cast
 
-from .. import utils
 from ..bpyutils import FnContext
 from ..core.material import FnMaterial
 from ..core.model import FnModel
@@ -18,18 +12,19 @@ from ..core.sdef import FnSDEF
 from . import patch_library_overridable
 from .morph import BoneMorph, GroupMorph, MaterialMorph, UVMorph, VertexMorph
 from .translations import MMDTranslation
-from ....core.logging_setup import logger
+
+IS_BLENDER_50_UP = bpy.app.version >= (5, 0)
 
 
-def __driver_variables(constraint: bpy.types.Constraint, path: str, index: int = -1) -> Tuple[bpy.types.Driver, Any]:
+def __driver_variables(constraint: bpy.types.Constraint, path: str, index=-1):
     d = constraint.driver_add(path, index)
     variables = d.driver.variables
-    for x in variables:
+    for x in reversed(variables):
         variables.remove(x)
     return d.driver, variables
 
 
-def __add_single_prop(variables: Any, id_obj: bpy.types.Object, data_path: str, prefix: str) -> Any:
+def __add_single_prop(variables, id_obj, data_path, prefix):
     var = variables.new()
     var.name = prefix + str(len(variables))
     var.type = "SINGLE_PROP"
@@ -40,18 +35,17 @@ def __add_single_prop(variables: Any, id_obj: bpy.types.Object, data_path: str,
     return var
 
 
-def _toggleUsePropertyDriver(self: "MMDRoot", _context: bpy.types.Context) -> None:
+def _toggleUsePropertyDriver(self: "MMDRoot", _context):
     root_object: bpy.types.Object = self.id_data
     armature_object = FnModel.find_armature_object(root_object)
 
     if armature_object is None:
-        ik_map: Dict[Any, Tuple[Any, Any]] = {}
+        ik_map = {}
     else:
         bones = armature_object.pose.bones
         ik_map = {bones[c.subtarget]: (b, c) for b in bones for c in b.constraints if c.type == "IK" and c.is_valid and c.subtarget in bones}
 
     if self.use_property_driver:
-        logger.debug("Enabling property drivers for %s", root_object.name)
         for ik, (b, c) in ik_map.items():
             driver, variables = __driver_variables(c, "influence")
             driver.expression = "%s" % __add_single_prop(variables, ik.id_data, ik.path_from_id("mmd_ik_toggle"), "use_ik").name
@@ -66,7 +60,6 @@ def _toggleUsePropertyDriver(self: "MMDRoot", _context: bpy.types.Context) -> No
                 driver, variables = __driver_variables(i, prop_hide)
                 driver.expression = "not %s" % __add_single_prop(variables, root_object, "mmd_root.show_meshes", "show").name
     else:
-        logger.debug("Disabling property drivers for %s", root_object.name)
         for ik, (b, c) in ik_map.items():
             c.driver_remove("influence")
             b = b if c.use_tail else b.parent
@@ -84,35 +77,31 @@ def _toggleUsePropertyDriver(self: "MMDRoot", _context: bpy.types.Context) -> No
 # ===========================================
 
 
-def _toggleUseToonTexture(self: "MMDRoot", _context: bpy.types.Context) -> None:
+def _toggleUseToonTexture(self: "MMDRoot", _context):
     use_toon = self.use_toon_texture
-    logger.debug("Toggling toon texture to %s for %s", use_toon, self.id_data.name)
     for i in FnModel.iterate_mesh_objects(self.id_data):
         for m in i.data.materials:
             if m:
                 FnMaterial(m).use_toon_texture(use_toon)
 
 
-def _toggleUseSphereTexture(self: "MMDRoot", _context: bpy.types.Context) -> None:
+def _toggleUseSphereTexture(self: "MMDRoot", _context):
     use_sphere = self.use_sphere_texture
-    logger.debug("Toggling sphere texture to %s for %s", use_sphere, self.id_data.name)
     for i in FnModel.iterate_mesh_objects(self.id_data):
         for m in i.data.materials:
             if m:
                 FnMaterial(m).use_sphere_texture(use_sphere, i)
 
 
-def _toggleUseSDEF(self: "MMDRoot", _context: bpy.types.Context) -> None:
+def _toggleUseSDEF(self: "MMDRoot", _context):
     mute_sdef = not self.use_sdef
-    logger.debug("Toggling SDEF to %s for %s", not mute_sdef, self.id_data.name)
     for i in FnModel.iterate_mesh_objects(self.id_data):
         FnSDEF.mute_sdef_set(i, mute_sdef)
 
 
-def _toggleVisibilityOfMeshes(self: "MMDRoot", context: bpy.types.Context) -> None:
+def _toggleVisibilityOfMeshes(self: "MMDRoot", context: bpy.types.Context):
     root = self.id_data
     hide = not self.show_meshes
-    logger.debug("Toggling mesh visibility to %s for %s", not hide, root.name)
     for i in FnModel.iterate_mesh_objects(self.id_data):
         i.hide_set(hide)
         i.hide_render = hide
@@ -120,30 +109,27 @@ def _toggleVisibilityOfMeshes(self: "MMDRoot", context: bpy.types.Context) -> No
         FnContext.set_active_object(context, root)
 
 
-def _toggleVisibilityOfRigidBodies(self: "MMDRoot", context: bpy.types.Context) -> None:
+def _toggleVisibilityOfRigidBodies(self: "MMDRoot", context: bpy.types.Context):
     root = self.id_data
     hide = not self.show_rigid_bodies
-    logger.debug("Toggling rigid body visibility to %s for %s", not hide, root.name)
     for i in FnModel.iterate_rigid_body_objects(root):
         i.hide_set(hide)
     if hide and context.active_object is None:
         FnContext.set_active_object(context, root)
 
 
-def _toggleVisibilityOfJoints(self: "MMDRoot", context: bpy.types.Context) -> None:
+def _toggleVisibilityOfJoints(self: "MMDRoot", context):
     root_object = self.id_data
     hide = not self.show_joints
-    logger.debug("Toggling joint visibility to %s for %s", not hide, root_object.name)
     for i in FnModel.iterate_joint_objects(root_object):
         i.hide_set(hide)
     if hide and context.active_object is None:
         FnContext.set_active_object(context, root_object)
 
 
-def _toggleVisibilityOfTemporaryObjects(self: "MMDRoot", context: bpy.types.Context) -> None:
+def _toggleVisibilityOfTemporaryObjects(self: "MMDRoot", context: bpy.types.Context):
     root_object: bpy.types.Object = self.id_data
     hide = not self.show_temporary_objects
-    logger.debug("Toggling temporary object visibility to %s for %s", not hide, root_object.name)
     with FnContext.temp_override_active_layer_collection(context, root_object):
         for i in FnModel.iterate_temporary_objects(root_object):
             i.hide_set(hide)
@@ -151,48 +137,45 @@ def _toggleVisibilityOfTemporaryObjects(self: "MMDRoot", context: bpy.types.Cont
         FnContext.set_active_object(context, root_object)
 
 
-def _toggleShowNamesOfRigidBodies(self: "MMDRoot", _context: bpy.types.Context) -> None:
+def _toggleShowNamesOfRigidBodies(self: "MMDRoot", _context):
     root = self.id_data
     show_names = root.mmd_root.show_names_of_rigid_bodies
-    logger.debug("Toggling rigid body names to %s for %s", show_names, root.name)
     for i in FnModel.iterate_rigid_body_objects(root):
         i.show_name = show_names
 
 
-def _toggleShowNamesOfJoints(self: "MMDRoot", _context: bpy.types.Context) -> None:
+def _toggleShowNamesOfJoints(self: "MMDRoot", _context):
     root = self.id_data
     show_names = root.mmd_root.show_names_of_joints
-    logger.debug("Toggling joint names to %s for %s", show_names, root.name)
     for i in FnModel.iterate_joint_objects(root):
         i.show_name = show_names
 
 
-def _setVisibilityOfMMDRigArmature(prop: "MMDRoot", v: bool) -> None:
+def _setVisibilityOfMMDRigArmature(prop: "MMDRoot", v: bool):
     root = prop.id_data
     arm = FnModel.find_armature_object(root)
     if arm is None:
         return
     if not v and bpy.context.active_object == arm:
         FnContext.set_active_object(bpy.context, root)
-    logger.debug("Setting armature visibility to %s for %s", v, root.name)
     arm.hide_set(not v)
 
 
-def _getVisibilityOfMMDRigArmature(prop: "MMDRoot") -> bool:
+def _getVisibilityOfMMDRigArmature(prop: "MMDRoot"):
     if prop.id_data.mmd_type != "ROOT":
         return False
     arm = FnModel.find_armature_object(prop.id_data)
-    return arm and not arm.hide_get()
+    return arm is not None and not arm.hide_get()
 
 
-def _setActiveRigidbodyObject(prop: "MMDRoot", v: int) -> None:
+def _setActiveRigidbodyObject(prop: "MMDRoot", v: int):
     obj = FnContext.get_scene_objects(bpy.context)[v]
     if FnModel.is_rigid_body_object(obj):
         FnContext.set_active_and_select_single_object(bpy.context, obj)
     prop["active_rigidbody_object_index"] = v
 
 
-def _getActiveRigidbodyObject(prop: "MMDRoot") -> int:
+def _getActiveRigidbodyObject(prop: "MMDRoot"):
     context = bpy.context
     active_obj = FnContext.get_active_object(context)
     if FnModel.is_rigid_body_object(active_obj):
@@ -200,14 +183,14 @@ def _getActiveRigidbodyObject(prop: "MMDRoot") -> int:
     return prop.get("active_rigidbody_object_index", 0)
 
 
-def _setActiveJointObject(prop: "MMDRoot", v: int) -> None:
+def _setActiveJointObject(prop: "MMDRoot", v: int):
     obj = FnContext.get_scene_objects(bpy.context)[v]
     if FnModel.is_joint_object(obj):
         FnContext.set_active_and_select_single_object(bpy.context, obj)
     prop["active_joint_object_index"] = v
 
 
-def _getActiveJointObject(prop: "MMDRoot") -> int:
+def _getActiveJointObject(prop: "MMDRoot"):
     context = bpy.context
     active_obj = FnContext.get_active_object(context)
     if FnModel.is_joint_object(active_obj):
@@ -215,26 +198,26 @@ def _getActiveJointObject(prop: "MMDRoot") -> int:
     return prop.get("active_joint_object_index", 0)
 
 
-def _setActiveMorph(prop: "MMDRoot", v: bool) -> None:
+def _setActiveMorph(prop: "MMDRoot", v: bool):
     if "active_morph_indices" not in prop:
         prop["active_morph_indices"] = [0] * 5
     prop["active_morph_indices"][prop.get("active_morph_type", 3)] = v
 
 
-def _getActiveMorph(prop: "MMDRoot") -> int:
+def _getActiveMorph(prop: "MMDRoot"):
     if "active_morph_indices" in prop:
         return prop["active_morph_indices"][prop.get("active_morph_type", 3)]
     return 0
 
 
-def _setActiveMeshObject(prop: "MMDRoot", v: int) -> None:
+def _setActiveMeshObject(prop: "MMDRoot", v: int):
     obj = FnContext.get_scene_objects(bpy.context)[v]
     if FnModel.is_mesh_object(obj):
         FnContext.set_active_and_select_single_object(bpy.context, obj)
     prop["active_mesh_index"] = v
 
 
-def _getActiveMeshObject(prop: "MMDRoot") -> int:
+def _getActiveMeshObject(prop: "MMDRoot"):
     context = bpy.context
     active_obj = FnContext.get_active_object(context)
     if FnModel.is_mesh_object(active_obj):
@@ -393,6 +376,18 @@ class MMDRoot(bpy.types.PropertyGroup):
         update=_toggleShowNamesOfJoints,
     )
 
+    show_japanese_name: bpy.props.BoolProperty(
+        name="Japanese name",
+        description="Toggle Japanese name display",
+        default=True,
+    )
+
+    show_english_name: bpy.props.BoolProperty(
+        name="English name",
+        description="Toggle English name display",
+        default=True,
+    )
+
     use_toon_texture: bpy.props.BoolProperty(
         name="Use Toon Texture",
         description="Use toon texture",
@@ -453,6 +448,15 @@ class MMDRoot(bpy.types.PropertyGroup):
         default=0,
     )
 
+    # *************************
+    # Bone
+    # *************************
+    active_bone_index: bpy.props.IntProperty(
+        name="Active Bone Index",
+        description="Index of the active bone in the armature",
+        default=0,
+    )
+
     # *************************
     # Morph
     # *************************
@@ -513,29 +517,40 @@ class MMDRoot(bpy.types.PropertyGroup):
 
     @staticmethod
     def __get_select(prop: bpy.types.Object) -> bool:
-        utils.warn_deprecation("Object.select", "v4.0.0", "Use Object.select_get() method instead")
+        # TODO: Object.select is deprecated since v4.0.0, use Object.select_get() method instead
+        # utils.warn_deprecation("Object.select", "v4.0.0", "Use Object.select_get() method instead")
         return prop.select_get()
 
     @staticmethod
     def __set_select(prop: bpy.types.Object, value: bool) -> None:
-        utils.warn_deprecation("Object.select", "v4.0.0", "Use Object.select_set() method instead")
+        # TODO: Object.select is deprecated since v4.0.0, use Object.select_set() method instead
+        # utils.warn_deprecation("Object.select", "v4.0.0", "Use Object.select_set() method instead")
         prop.select_set(value)
 
     @staticmethod
     def __get_hide(prop: bpy.types.Object) -> bool:
-        utils.warn_deprecation("Object.hide", "v4.0.0", "Use Object.hide_get() method instead")
+        # TODO: Object.hide is deprecated since v4.0.0, use Object.hide_get() method instead
+        # utils.warn_deprecation("Object.hide", "v4.0.0", "Use Object.hide_get() method instead")
         return prop.hide_get()
 
     @staticmethod
     def __set_hide(prop: bpy.types.Object, value: bool) -> None:
-        utils.warn_deprecation("Object.hide", "v4.0.0", "Use Object.hide_set() method instead")
+        # TODO: Object.hide is deprecated since v4.0.0, use Object.hide_set() method instead
+        # utils.warn_deprecation("Object.hide", "v4.0.0", "Use Object.hide_set() method instead")
         prop.hide_set(value)
         if prop.hide_viewport != value:
             prop.hide_viewport = value
 
     @staticmethod
-    def register() -> None:
-        logger.debug("Registering MMDRoot property group")
+    def __get_pose_bone_select(prop: bpy.types.PoseBone) -> bool:
+        return prop.bone.select
+
+    @staticmethod
+    def __set_pose_bone_select(prop: bpy.types.PoseBone, value: bool) -> None:
+        prop.bone.select = value
+
+    @staticmethod
+    def register():
         bpy.types.Object.mmd_type = patch_library_overridable(
             bpy.props.EnumProperty(
                 name="Type",
@@ -557,7 +572,7 @@ class MMDRoot(bpy.types.PropertyGroup):
                     ("SPRING_CONSTRAINT", "Spring Constraint", "", 53),
                     ("SPRING_GOAL", "Spring Goal", "", 54),
                 ],
-            )
+            ),
         )
         bpy.types.Object.mmd_root = patch_library_overridable(bpy.props.PointerProperty(type=MMDRoot))
 
@@ -570,7 +585,7 @@ class MMDRoot(bpy.types.PropertyGroup):
                     "ANIMATABLE",
                     "LIBRARY_EDITABLE",
                 },
-            )
+            ),
         )
         bpy.types.Object.hide = patch_library_overridable(
             bpy.props.BoolProperty(
@@ -581,13 +596,29 @@ class MMDRoot(bpy.types.PropertyGroup):
                     "ANIMATABLE",
                     "LIBRARY_EDITABLE",
                 },
+            ),
         )
+
+        if not IS_BLENDER_50_UP:
+            bpy.types.PoseBone.select = patch_library_overridable(
+                bpy.props.BoolProperty(
+                    name="Select",
+                    description="Pose bone selection state (compatibility layer for Blender 4.x, forwards to bone.select)",
+                    get=MMDRoot.__get_pose_bone_select,
+                    set=MMDRoot.__set_pose_bone_select,
+                    options={
+                        "SKIP_SAVE",
+                        "ANIMATABLE",
+                        "LIBRARY_EDITABLE",
+                    },
+                ),
             )
 
     @staticmethod
-    def unregister() -> None:
-        logger.debug("Unregistering MMDRoot property group")
+    def unregister():
         del bpy.types.Object.hide
         del bpy.types.Object.select
         del bpy.types.Object.mmd_root
         del bpy.types.Object.mmd_type
+        if not IS_BLENDER_50_UP:
+            del bpy.types.PoseBone.select

core/mmd/properties/translations.py

@@ -1,9 +1,5 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2021 MMD Tools authors
+# This file is part of MMD Tools.
 
 from typing import Dict, List, Optional, Tuple
 

core/mmd/translations.py

@@ -1,25 +1,17 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2016 MMD Tools authors
+# This file is part of MMD Tools.
 
 import csv
+from ...core.logging_setup import logger
+import os
 import time
-from typing import List, Tuple, Dict, Optional, Any, Generator, Union, TextIO, Iterator, Set
+from collections import OrderedDict
 
 import bpy
-from bpy.types import Text, Context
 
 from .bpyutils import FnContext
-from ..logging_setup import logger
 
-# Type definitions for translation tuples
-TranslationTuple = Tuple[str, str]
-TranslationList = List[TranslationTuple]
-
-jp_half_to_full_tuples: TranslationList = (
+jp_half_to_full_tuples = (
     ("ｳﾞ", "ヴ"),
     ("ｶﾞ", "ガ"),
     ("ｷﾞ", "ギ"),
@@ -109,7 +101,7 @@ jp_half_to_full_tuples: TranslationList = (
     ("ﾝ", "ン"),
 )
 
-jp_to_en_tuples: TranslationList = [
+jp_to_en_tuples = [
     ("全ての親", "ParentNode"),
     ("操作中心", "ControlNode"),
     ("センター", "Center"),
@@ -299,30 +291,22 @@ jp_to_en_tuples: TranslationList = [
 ]
 
 
-def translateFromJp(name: str) -> str:
-    """Translate a Japanese name to English using the translation tuples."""
-    logger.debug(f"Translating from Japanese: {name}")
-    for tuple in jp_to_en_tuples:
-        if tuple[0] in name:
-            name = name.replace(tuple[0], tuple[1])
-    logger.debug(f"Translation result: {name}")
+def translateFromJp(name):
+    for t in jp_to_en_tuples:
+        if t[0] in name:
+            name = name.replace(t[0], t[1])
     return name
 
 
-def getTranslator(csvfile: Union[str, Dict[str, str], Text] = "", keep_order: bool = False) -> 'MMDTranslator':
-    """Get a translator instance with the specified CSV file."""
+def getTranslator(csvfile="", keep_order=False):
     translator = MMDTranslator()
     if isinstance(csvfile, bpy.types.Text):
-        logger.debug(f"Loading translator from Text object: {csvfile.name}")
         translator.load_from_stream(csvfile)
     elif isinstance(csvfile, dict):
-        logger.debug(f"Loading translator from dictionary with {len(csvfile)} entries")
         translator.csv_tuples.extend(csvfile.items())
     elif csvfile in bpy.data.texts.keys():
-        logger.debug(f"Loading translator from text data: {csvfile}")
         translator.load_from_stream(bpy.data.texts[csvfile])
     else:
-        logger.debug(f"Loading translator from file: {csvfile}")
         translator.load(csvfile)
 
     if not keep_order:
@@ -332,20 +316,16 @@ def getTranslator(csvfile: Union[str, Dict[str, str], Text] = "", keep_order: bo
 
 
 class MMDTranslator:
-    """Handles translation of Japanese text to English for MMD models."""
-    
-    def __init__(self) -> None:
-        self.__csv_tuples: List[Tuple[str, str]] = []
-        self.__fails: Dict[str, str] = {}
+    def __init__(self):
+        self.__csv_tuples = []
+        self.__fails = {}
 
     @staticmethod
-    def default_csv_filepath() -> str:
-        """Get the default CSV filepath for translations."""
+    def default_csv_filepath():
         return __file__[:-3] + ".csv"
 
     @staticmethod
-    def get_csv_text(text_name: Optional[str] = None) -> Text:
-        """Get or create a Text object for CSV data."""
+    def get_csv_text(text_name=None):
         text_name = text_name or bpy.path.basename(MMDTranslator.default_csv_filepath())
         csv_text = bpy.data.texts.get(text_name, None)
         if csv_text is None:
@@ -353,88 +333,67 @@ class MMDTranslator:
         return csv_text
 
     @staticmethod
-    def replace_from_tuples(name: str, tuples: List[Tuple[str, str]]) -> str:
-        """Replace parts of a string based on translation tuples."""
+    def replace_from_tuples(name, tuples):
         for pair in tuples:
             if pair[0] in name:
                 name = name.replace(pair[0], pair[1])
         return name
 
     @property
-    def csv_tuples(self) -> List[Tuple[str, str]]:
-        """Get the CSV tuples."""
+    def csv_tuples(self):
         return self.__csv_tuples
 
     @property
-    def fails(self) -> Dict[str, str]:
-        """Get the failed translations."""
+    def fails(self):
         return self.__fails
 
-    def sort(self) -> None:
-        """Sort the CSV tuples by length (longest first) and then alphabetically."""
-        logger.debug("Sorting translation tuples")
+    def sort(self):
         self.__csv_tuples.sort(key=lambda row: (-len(row[0]), row))
 
-    def update(self) -> None:
-        """Update the CSV tuples, removing duplicates."""
-        from collections import OrderedDict
-
+    def update(self):
         count_old = len(self.__csv_tuples)
         tuples_dict = OrderedDict((row[0], row) for row in self.__csv_tuples if len(row) >= 2 and row[0])
         self.__csv_tuples.clear()
         self.__csv_tuples.extend(tuples_dict.values())
-        logger.info("Translation update - removed items: %d (of %d)", count_old - len(self.__csv_tuples), count_old)
+        logger.info(" - removed items:\t%d\t(of %d)", count_old - len(self.__csv_tuples), count_old)
 
-    def half_to_full(self, name: str) -> str:
-        """Convert half-width Japanese characters to full-width."""
+    def half_to_full(self, name):
         return self.replace_from_tuples(name, jp_half_to_full_tuples)
 
-    def is_translated(self, name: str) -> bool:
-        """Check if a string is already translated (contains only ASCII characters)."""
+    def is_translated(self, name):
         try:
             name.encode("ascii", errors="strict")
         except UnicodeEncodeError:
             return False
         return True
 
-    def translate(self, name: str, default: Optional[str] = None, from_full_width: bool = True) -> str:
-        """Translate a string from Japanese to English."""
-        logger.debug(f"Translating: {name}")
+    def translate(self, name, default=None, from_full_width=True):
         if from_full_width:
             name = self.half_to_full(name)
         name_new = self.replace_from_tuples(name, self.__csv_tuples)
         if default is not None and not self.is_translated(name_new):
-            logger.warning(f"Translation failed for: {name}")
             self.__fails[name] = name_new
             return default
         return name_new
 
-    def save_fails(self, text_name: Optional[str] = None) -> Text:
-        """Save failed translations to a Text object."""
+    def save_fails(self, text_name=None):
         text_name = text_name or (__name__ + ".fails")
         txt = self.get_csv_text(text_name)
         fmt = '"%s","%s"'
         items = sorted(self.__fails.items(), key=lambda row: (-len(row[0]), row))
         txt.from_string("\n".join(fmt % (k, v) for k, v in items))
-        logger.info(f"Saved {len(items)} failed translations to {text_name}")
         return txt
 
-    def load_from_stream(self, csvfile: Union[Text, Iterator[str]] = None) -> None:
-        """Load translations from a stream."""
+    def load_from_stream(self, csvfile=None):
         csvfile = csvfile or self.get_csv_text()
         if isinstance(csvfile, bpy.types.Text):
-            csvfile = (l.body + "\n" for l in csvfile.lines)
+            csvfile = (line.body + "\n" for line in csvfile.lines)
         spamreader = csv.reader(csvfile, delimiter=",", skipinitialspace=True)
         csv_tuples = [tuple(row) for row in spamreader if len(row) >= 2]
         self.__csv_tuples = csv_tuples
-        logger.info("Loaded %d translation items", len(self.__csv_tuples))
+        logger.info(" - load items:\t%d", len(self.__csv_tuples))
 
-    def save_to_stream(self, csvfile: Union[Text, TextIO] = None) -> None:
-        """Save translations to a stream.
-        
-        Args:
-            csvfile: The CSV file or stream to save to
-        """
+    def save_to_stream(self, csvfile=None):
         csvfile = csvfile or self.get_csv_text()
         lineterminator = "\r\n"
         if isinstance(csvfile, bpy.types.Text):
@@ -442,38 +401,27 @@ class MMDTranslator:
             lineterminator = "\n"
         spamwriter = csv.writer(csvfile, delimiter=",", lineterminator=lineterminator, quoting=csv.QUOTE_ALL)
         spamwriter.writerows(self.__csv_tuples)
-        logger.info("Saved %d translation items", len(self.__csv_tuples))
+        logger.info(" - save items:\t%d", len(self.__csv_tuples))
 
-    def load(self, filepath: Optional[str] = None) -> None:
-        """Load translations from a file."""
+    def load(self, filepath=None):
         filepath = filepath or self.default_csv_filepath()
-        logger.info("Loading CSV file: %s", filepath)
-        try:
-            with open(filepath, "rt", encoding="utf-8", newline="") as csvfile:
+        logger.info("Loading csv file:\t%s", filepath)
+        with open(filepath, encoding="utf-8", newline="") as csvfile:
             self.load_from_stream(csvfile)
-        except Exception as e:
-            logger.error(f"Failed to load CSV file: {e}")
 
-    def save(self, filepath: Optional[str] = None) -> None:
-        """Save translations to a file."""
+    def save(self, filepath=None):
         filepath = filepath or self.default_csv_filepath()
-        logger.info("Saving CSV file: %s", filepath)
-        try:
-            with open(filepath, "wt", encoding="utf-8", newline="") as csvfile:
+        logger.info("Saving csv file:\t%s", filepath)
+        with open(filepath, "w", encoding="utf-8", newline="") as csvfile:
             self.save_to_stream(csvfile)
-        except Exception as e:
-            logger.error(f"Failed to save CSV file: {e}")
 
 
 class DictionaryEnum:
-    """Handles dictionary enumeration for UI."""
-    
-    __items_ttl: float = 0.0
-    __items_cache: Optional[List[Tuple[str, str, str, int]]] = None
+    __items_ttl = 0.0
+    __items_cache = None
 
     @staticmethod
-    def get_dictionary_items(prop: Any, context: Context) -> List[Tuple[str, str, str, Union[int, str], int]]:
-        """Get dictionary items for UI enumeration."""
+    def get_dictionary_items(prop, context):
         if DictionaryEnum.__items_ttl > time.time():
             return DictionaryEnum.__items_cache
 
@@ -487,8 +435,6 @@ class DictionaryEnum:
         for txt_name in sorted(x.name for x in bpy.data.texts if x.name.lower().endswith(".csv")):
             items.append((txt_name, txt_name, f"bpy.data.texts['{txt_name}']", "TEXT", len(items)))
 
-        import os
-
         folder = FnContext.get_addon_preferences_attribute(context, "dictionary_folder", "")
         if os.path.isdir(folder):
             for filename in sorted(x for x in os.listdir(folder) if x.lower().endswith(".csv")):
@@ -498,19 +444,12 @@ class DictionaryEnum:
 
         if "dictionary" in prop:
             prop["dictionary"] = min(prop["dictionary"], len(items) - 1)
-        
-        logger.debug(f"Found {len(items)} dictionary items")
         return items
 
     @staticmethod
-    def get_translator(dictionary: str) -> Optional[MMDTranslator]:
-        """Get a translator for the specified dictionary."""
+    def get_translator(dictionary):
         if dictionary == "DISABLED":
-            logger.debug("Translation disabled")
             return None
         if dictionary == "INTERNAL":
-            logger.debug("Using internal dictionary")
             return getTranslator(dict(jp_to_en_tuples))
-        
-        logger.debug(f"Using dictionary: {dictionary}")
         return getTranslator(dictionary)

core/mmd/utils.py

@@ -1,23 +1,20 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 MMD Tools authors
-# This file was originally part of the MMD Tools add-on for Blender
-# You can find MMD Tools here: https://github.com/MMD-Blender/blender_mmd_tools
-# Neoneko has modified this file to work with Avatar Toolkit and may of made changes or improvements.
-# MMD Tools is licensed under the terms of the GNU General Public License version 3 (GPLv3) same as Avatar Toolkit.
+# Copyright 2012 MMD Tools authors
+# This file is part of MMD Tools.
 
+from ...core.logging_setup import logger
 import os
 import re
-from typing import Callable, Dict, List, Optional, Set, Tuple, Union, Any
+import string
+from typing import Callable, Optional, Set
 
 import bpy
-from bpy.types import Object, Bone, PoseBone, Mesh, VertexGroup
+import numpy as np
 
-from ..logging_setup import logger
 from .bpyutils import FnContext
 
 
-## 指定したオブジェクトのみを選択状態かつアクティブにする
-def selectAObject(obj: Object) -> None:
+# 指定したオブジェクトのみを選択状態かつアクティブにする
+def selectAObject(obj):
     try:
         bpy.ops.object.mode_set(mode="OBJECT")
     except Exception:
@@ -27,14 +24,14 @@ def selectAObject(obj: Object) -> None:
     FnContext.set_active_object(FnContext.ensure_context(), obj)
 
 
-## 現在のモードを指定したオブジェクトのEdit Modeに変更する
-def enterEditMode(obj: Object) -> None:
+# 現在のモードを指定したオブジェクトのEdit Modeに変更する
+def enterEditMode(obj):
     selectAObject(obj)
     if obj.mode != "EDIT":
         bpy.ops.object.mode_set(mode="EDIT")
 
 
-def setParentToBone(obj: Object, parent: Object, bone_name: str) -> None:
+def setParentToBone(obj, parent, bone_name):
     selectAObject(obj)
     FnContext.set_active_object(FnContext.ensure_context(), parent)
     bpy.ops.object.mode_set(mode="POSE")
@@ -43,11 +40,11 @@ def setParentToBone(obj: Object, parent: Object, bone_name: str) -> None:
     bpy.ops.object.mode_set(mode="OBJECT")
 
 
-def selectSingleBone(context: bpy.types.Context, armature: Object, bone_name: str, reset_pose: bool = False) -> None:
+def selectSingleBone(context, armature, bone_name, reset_pose=False):
     try:
         bpy.ops.object.mode_set(mode="OBJECT")
-    except:
-        pass
+    except Exception as e:
+        logger.warning(f"Failed to set object mode: {e}")
     for i in context.selected_objects:
         i.select_set(False)
     FnContext.set_active_object(context, armature)
@@ -55,22 +52,21 @@ def selectSingleBone(context: bpy.types.Context, armature: Object, bone_name: st
     if reset_pose:
         for p_bone in armature.pose.bones:
             p_bone.matrix_basis.identity()
-    armature_bones: bpy.types.ArmatureBones = armature.data.bones
-    i: Bone
-    for i in armature_bones:
-        i.select = i.name == bone_name
-        i.select_head = i.select_tail = i.select
-        if i.select:
-            armature_bones.active = i
-            i.hide = False
+
+    for p_bone in armature.pose.bones:
+        is_target = p_bone.name == bone_name
+        p_bone.select = is_target
+        if is_target:
+            armature.data.bones.active = p_bone.bone
+            p_bone.bone.hide = False
 
 
-__CONVERT_NAME_TO_L_REGEXP = re.compile("^(.*)左(.*)$")
-__CONVERT_NAME_TO_R_REGEXP = re.compile("^(.*)右(.*)$")
+__CONVERT_NAME_TO_L_REGEXP = re.compile(r"^(.*)左(.*)$")
+__CONVERT_NAME_TO_R_REGEXP = re.compile(r"^(.*)右(.*)$")
 
 
-## 日本語で左右を命名されている名前をblender方式のL(R)に変更する
-def convertNameToLR(name: str, use_underscore: bool = False) -> str:
+# 日本語で左右を命名されている名前をblender方式のL(R)に変更する
+def convertNameToLR(name, use_underscore=False):
     m = __CONVERT_NAME_TO_L_REGEXP.match(name)
     delimiter = "_" if use_underscore else "."
     if m:
@@ -85,7 +81,7 @@ __CONVERT_L_TO_NAME_REGEXP = re.compile(r"(?P<lr>(?P<separator>[._])[lL])(?P<aft
 __CONVERT_R_TO_NAME_REGEXP = re.compile(r"(?P<lr>(?P<separator>[._])[rR])(?P<after>($|(?P=separator)))")
 
 
-def convertLRToName(name: str) -> str:
+def convertLRToName(name):
     match = __CONVERT_L_TO_NAME_REGEXP.search(name)
     if match:
         return f"左{name[0:match.start()]}{match['after']}{name[match.end():]}"
@@ -97,8 +93,8 @@ def convertLRToName(name: str) -> str:
     return name
 
 
-## src_vertex_groupのWeightをdest_vertex_groupにaddする
-def mergeVertexGroup(meshObj: Object, src_vertex_group_name: str, dest_vertex_group_name: str) -> None:
+# src_vertex_groupのWeightをdest_vertex_groupにaddする
+def mergeVertexGroup(meshObj, src_vertex_group_name, dest_vertex_group_name):
     mesh = meshObj.data
     src_vertex_group = meshObj.vertex_groups[src_vertex_group_name]
     dest_vertex_group = meshObj.vertex_groups[dest_vertex_group_name]
@@ -112,43 +108,73 @@ def mergeVertexGroup(meshObj: Object, src_vertex_group_name: str, dest_vertex_gr
             pass
 
 
-def separateByMaterials(meshObj: Object) -> None:
-    if len(meshObj.data.materials) < 2:
+def separateByMaterials(meshObj: bpy.types.Object, keep_normals: bool = False):
+    meshData = meshObj.data
+    if len(meshData.materials) < 2:
         selectAObject(meshObj)
         return
+
+    dummy_parent = None
+    try:
+        dummy_parent = bpy.data.objects.new(name="tmp", object_data=None)
         matrix_parent_inverse = meshObj.matrix_parent_inverse.copy()
         prev_parent = meshObj.parent
-    dummy_parent = bpy.data.objects.new(name="tmp", object_data=None)
         meshObj.parent = dummy_parent
         meshObj.active_shape_key_index = 0
+        mmd_normal_name = None  # To avoid conflict ("mmd_normal.001", etc.)
+        if keep_normals:
+            existing_custom_normal = meshData.attributes.get("custom_normal")
+            if existing_custom_normal:
+                if existing_custom_normal.data_type == "INT16_2D":
+                    normals_data = np.empty(len(meshData.loops) * 2, dtype=np.int16)
+                    existing_custom_normal.data.foreach_get("value", normals_data)
+                    mmd_normal = meshData.attributes.new("mmd_normal", "INT16_2D", "CORNER")
+                    mmd_normal_name = mmd_normal.name
+                    mmd_normal.data.foreach_set("value", normals_data)
+                else:
+                    raise TypeError(f"Unsupported custom_normal data type: '{existing_custom_normal.data_type}'. Supported types: 'INT16_2D'")
+
         try:
             enterEditMode(meshObj)
-        bpy.ops.mesh.select_all(action="SELECT")
             bpy.ops.mesh.separate(type="MATERIAL")
         finally:
             bpy.ops.object.mode_set(mode="OBJECT")
+
         for i in dummy_parent.children:
             materials = i.data.materials
             i.name = getattr(materials[0], "name", "None") if len(materials) else "None"
             i.parent = prev_parent
             i.matrix_parent_inverse = matrix_parent_inverse
+
+            if keep_normals and mmd_normal_name:
+                mmd_normal = i.data.attributes.get(mmd_normal_name)
+                if mmd_normal:
+                    if mmd_normal.data_type == "INT16_2D":
+                        normals_data = np.empty(len(i.data.loops) * 2, dtype=np.int16)
+                        mmd_normal.data.foreach_get("value", normals_data)
+                        custom_normal_attr = i.data.attributes.get("custom_normal")
+                        if not custom_normal_attr:
+                            custom_normal_attr = i.data.attributes.new("custom_normal", "INT16_2D", "CORNER")
+                        custom_normal_attr.data.foreach_set("value", normals_data)
+                    else:
+                        raise TypeError(f"Unsupported custom_normal data type: '{mmd_normal.data_type}'. Supported types: 'INT16_2D'")
+                    i.data.attributes.remove(mmd_normal)
+    finally:
+        if dummy_parent and dummy_parent.name in bpy.data.objects:
             bpy.data.objects.remove(dummy_parent)
 
 
-def clearUnusedMeshes() -> None:
-    meshes_to_delete = []
-    for mesh in bpy.data.meshes:
-        if mesh.users == 0:
-            meshes_to_delete.append(mesh)
+def clearUnusedMeshes():
+    meshes_to_delete = [mesh for mesh in bpy.data.meshes if mesh.users == 0]
 
     for mesh in meshes_to_delete:
         bpy.data.meshes.remove(mesh)
 
 
-## Boneのカスタムプロパティにname_jが存在する場合、name_jの値を
+# Boneのカスタムプロパティにname_jが存在する場合、name_jの値を
 # それ以外の場合は通常のbone名をキーとしたpose_boneへの辞書を作成
-def makePmxBoneMap(armObj: Object) -> Dict[str, PoseBone]:
-    # Maintain backward compatibility with mmd_tools v0.4.x or older.
+def makePmxBoneMap(armObj):
+    # Maintain backward compatibility with mmd_tools_local v0.4.x or older.
     return {(i.mmd_bone.name_j or i.get("mmd_bone_name_j", i.get("name_j", i.name))): i for i in armObj.pose.bones}
 
 
@@ -156,7 +182,7 @@ __REMOVE_PREFIX_DIGITS_REGEXP = re.compile(r"\.\d{1,}$")
 
 
 def unique_name(name: str, used_names: Set[str]) -> str:
-    """Helper function for storing unique names.
+    """Generate a unique name from the given name.
     This function is a limited and simplified version of bpy_extras.io_utils.unique_name.
 
     Args:
@@ -176,13 +202,11 @@ def unique_name(name: str, used_names: Set[str]) -> str:
     return new_name
 
 
-def int2base(x: int, base: int, width: int = 0) -> str:
+def int2base(x, base, width=0):
     """
-    Method to convert an int to a base
+    Convert an int to a base
     Source: http://stackoverflow.com/questions/2267362
     """
-    import string
-
     digs = string.digits + string.ascii_uppercase
     assert 2 <= base <= len(digs)
     digits, negtive = "", False
@@ -199,7 +223,7 @@ def int2base(x: int, base: int, width: int = 0) -> str:
     return digits
 
 
-def saferelpath(path: str, start: str, strategy: str = "inside") -> str:
+def saferelpath(path, start, strategy="inside"):
     """
     On Windows relpath will raise a ValueError
     when trying to calculate the relative path to a
@@ -226,15 +250,16 @@ def saferelpath(path: str, start: str, strategy: str = "inside") -> str:
 
     return os.path.relpath(path, start)
 
+
 class ItemOp:
     @staticmethod
-    def get_by_index(items: bpy.types.bpy_prop_collection, index: int) -> Optional[Any]:
+    def get_by_index(items, index):
         if 0 <= index < len(items):
             return items[index]
         return None
 
     @staticmethod
-    def resize(items: bpy.types.bpy_prop_collection, length: int) -> None:
+    def resize(items: bpy.types.bpy_prop_collection, length: int):
         count = length - len(items)
         if count > 0:
             for i in range(count):
@@ -244,7 +269,7 @@ class ItemOp:
                 items.remove(length)
 
     @staticmethod
-    def add_after(items: bpy.types.bpy_prop_collection, index: int) -> Tuple[Any, int]:
+    def add_after(items, index):
         index_end = len(items)
         index = max(0, min(index_end, index + 1))
         items.add()
@@ -266,8 +291,7 @@ class ItemMoveOp:
     )
 
     @staticmethod
-    def move(items: bpy.types.bpy_prop_collection, index: int, move_type: str, 
-             index_min: int = 0, index_max: Optional[int] = None) -> int:
+    def move(items, index, move_type, index_min=0, index_max=None):
         if index_max is None:
             index_max = len(items) - 1
         else:
@@ -277,7 +301,7 @@ class ItemMoveOp:
         if index < index_min:
             items.move(index, index_min)
             return index_min
-        elif index > index_max:
+        if index > index_max:
             items.move(index, index_max)
             return index_max
 
@@ -296,8 +320,8 @@ class ItemMoveOp:
         return index_new
 
 
-def deprecated(deprecated_in: Optional[str] = None, details: Optional[str] = None) -> Callable:
-    """Decorator to mark a function as deprecated.
+def deprecated(deprecated_in: Optional[str] = None, details: Optional[str] = None):
+    """Mark a function as deprecated.
     Args:
         deprecated_in (Optional[str]): Version in which the function was deprecated.
         details (Optional[str]): Additional details about the deprecation.
@@ -305,8 +329,8 @@ def deprecated(deprecated_in: Optional[str] = None, details: Optional[str] = Non
         Callable: The decorated function.
     """
 
-    def _function_wrapper(function: Callable) -> Callable:
-        def _inner_wrapper(*args: Any, **kwargs: Any) -> Any:
+    def _function_wrapper(function: Callable):
+        def _inner_wrapper(*args, **kwargs):
             warn_deprecation(function.__name__, deprecated_in, details)
             return function(*args, **kwargs)
 
@@ -316,7 +340,7 @@ def deprecated(deprecated_in: Optional[str] = None, details: Optional[str] = Non
 
 
 def warn_deprecation(function_name: str, deprecated_in: Optional[str] = None, details: Optional[str] = None) -> None:
-    """Reports a deprecation warning.
+    """Report a deprecation warning.
     Args:
         function_name (str): Name of the deprecated function.
         deprecated_in (Optional[str]): Version in which the function was deprecated.
@@ -330,3 +354,7 @@ def warn_deprecation(function_name: str, deprecated_in: Optional[str] = None, de
         stack_info=True,
         stacklevel=4,
     )
+
+    # import warnings  # pylint: disable=import-outside-toplevel
+
+    # warnings.warn(f"""{function_name}is deprecated{f" since {deprecated_in}" if deprecated_in else ""}{f": {details}" if details else ""}""", category=DeprecationWarning, stacklevel=2)

core/properties.py

@@ -35,6 +35,11 @@ def update_validation_mode(self: PropertyGroup, context: Context) -> None:
     logger.info(f"Updating validation mode to: {self.validation_mode}")
     save_preference("validation_mode", self.validation_mode)
     
+    # Hide validation results if mode is set to NONE
+    if self.validation_mode == 'NONE':
+        self.show_validation_results = False
+        logger.debug("Validation mode set to NONE, hiding validation results")
+
 
 def update_logging_state(self: PropertyGroup, context: Context) -> None:
     """Updates logging state and configures logging"""
@@ -62,10 +67,42 @@ def highlight_problem_bones(self: PropertyGroup, context: Context) -> None:
     save_preference("highlight_problem_bones", self.highlight_problem_bones)
 
 def get_mesh_objects(self, context):
-    meshes = [(obj.name, obj.name, "") for obj in bpy.data.objects if obj.type == 'MESH']
+    """Get list of all mesh objects with ASCII-safe identifiers
+    
+    Returns tuples of (identifier, display_name, description) where:
+    - identifier: ASCII-safe unique ID (uses object's memory address)
+    - display_name: The actual object name (can contain Japanese/non-ASCII characters)
+    - description: Empty string
+    
+    Uses caching to prevent encoding issues with Blender's EnumProperty system
+    """
+    # Create a cache key based on mesh objects
+    mesh_objects = [obj for obj in bpy.data.objects if obj.type == 'MESH']
+    cache_key = tuple((obj.name, obj.as_pointer()) for obj in mesh_objects)
+    
+    # Check if we have a cached result
+    if hasattr(get_mesh_objects, '_cache_key') and get_mesh_objects._cache_key == cache_key:
+        if hasattr(get_mesh_objects, '_cached_items'):
+            return get_mesh_objects._cached_items
+    
+    # Build the list
+    meshes = []
+    for obj in mesh_objects:
+        safe_id = f"MESH_{obj.as_pointer()}"
+        # Use the name directly - Blender should handle Unicode in display names
+        display_name = obj.name
+        meshes.append((safe_id, display_name, ""))
+    
     if not meshes:
-        return [('NONE', t("Visemes.no_meshes"), '')]
-    return meshes
+        result = [('NONE', t("Visemes.no_meshes"), '')]
+    else:
+        result = meshes
+    
+    # Cache the result
+    get_mesh_objects._cache_key = cache_key
+    get_mesh_objects._cached_items = result
+    
+    return result
 
 def auto_populate_merge_armatures(context: Context) -> None:
     """Auto-populate merge armature fields when there are 2+ armatures"""
@@ -153,6 +190,12 @@ class AvatarToolkitSceneProperties(PropertyGroup):
         default=False
     )
 
+    show_validation_results: BoolProperty(
+        name="Show Validation Results",
+        default=False,
+        description="Show the validation results section"
+    )
+
     material_search_filter: StringProperty(
         name=t("TextureAtlas.search_materials"),
         description=t("TextureAtlas.search_materials_desc"),
@@ -283,7 +326,7 @@ class AvatarToolkitSceneProperties(PropertyGroup):
             ('BASIC', t("Settings.validation_mode.basic"), t("Settings.validation_mode.basic_desc")),
             ('NONE', t("Settings.validation_mode.none"), t("Settings.validation_mode.none_desc"))
         ],
-        default=get_preference("validation_mode", "STRICT"),
+        default=get_preference("validation_mode", "NONE"),
         update=update_validation_mode
     )
 
@@ -801,14 +844,18 @@ def update_translation_mode(self: PropertyGroup, context: Context) -> None:
 
 def update_active_armature(self: PropertyGroup, context: Context) -> None:
     """Update the active armature when selection changes"""
-    if self.active_armature:
-        logger.info(f"Active armature set to: {self.active_armature}")
+    if self.active_armature and self.active_armature != 'NONE':
+        # Get the actual armature object from the identifier
+        armature = get_active_armature(context)
+        
+        if armature:
+            logger.info(f"Active armature set to: {armature.name}")
             # Deselect all objects first
             bpy.ops.object.select_all(action='DESELECT')
             # Select and make active the chosen armature
-        self.active_armature.select_set(True)
-        context.view_layer.objects.active = self.active_armature
-        logger.info(f"Selected and activated armature: {self.active_armature.name}")
+            armature.select_set(True)
+            context.view_layer.objects.active = armature
+            logger.info(f"Selected and activated armature: {armature.name}")
             
             # Clear armature caches when armature changes to ensure fresh validation
             try:
@@ -816,6 +863,8 @@ def update_active_armature(self: PropertyGroup, context: Context) -> None:
                 clear_armature_caches()
             except ImportError:
                 pass  # UI module might not be loaded yet
+        else:
+            logger.warning("Failed to get armature object from identifier")
     else:
         logger.info("No armature selected")
 

core/resonite_utils.py

@@ -2,6 +2,7 @@ import traceback
 from types import FrameType
 import bpy
 import bpy_extras
+from bpy_extras import anim_utils
 from numpy import double
 from typing import Set, Dict
 import re
@@ -115,12 +116,33 @@ class AvatarToolkit_OT_ConvertResonite(Operator):
         return {'FINISHED'}
 
 
-def makeorexistingfcurve(action: bpy.types.Action,data_path: str,action_group: str, index=0) -> bpy.types.FCurve:
-    fcurve = action.fcurves.find(data_path=data_path,index=index)
-    if fcurve == None:
-        return action.fcurves.new(data_path,action_group=action_group,index=index)
+def makeorexistingfcurve(action: bpy.types.Action, data_path: str, action_group: str, index=0) -> bpy.types.FCurve:
+    """Get or create an F-Curve using Blender 5.0 channelbag system.
+    
+    Blender 5.0 Breaking Change: The legacy action.fcurves API has been removed.
+    F-Curves are now accessed through channelbags. Each slot of an Action can have a channelbag.
+    This function has been migrated to use bpy_extras.anim_utils.action_ensure_channelbag_for_slot().
+    """
+    # Get the action slot (assumes single slot for now - armature actions typically use first slot)
+    if not action.slots:
+        slot = action.slots.new(for_id=bpy.context.object.data if bpy.context.object and bpy.context.object.type == 'ARMATURE' else None)
     else:
-        print("fcurve with data \""+data_path+"\" already exists")
+        slot = action.slots[0]
+    
+    # Get or create channelbag for this slot
+    channelbag = anim_utils.action_ensure_channelbag_for_slot(action, slot)
+    
+    # Use ensure() to get existing or create new F-Curve
+    fcurve = channelbag.fcurves.ensure(data_path, index=index, group_name=action_group)
+    
+    if fcurve:
+        return fcurve
+    else:
+        print(f"fcurve with data \"{data_path}\" creation failed")
+        # Fallback: try to find or create manually
+        fcurve = channelbag.fcurves.find(data_path, index=index)
+        if fcurve is None:
+            fcurve = channelbag.fcurves.new(data_path, index=index, group_name=action_group)
         return fcurve
 
 class AvatarToolKit_OT_AnimX_Importer(Operator,bpy_extras.io_utils.ImportHelper):

core/translation_manager.py

@@ -67,8 +67,14 @@ class TranslationCache:
         """Load cache from file"""
         try:
             if os.path.exists(self._cache_file):
+                # Try UTF-8 first, fallback to other encodings
+                try:
                     with open(self._cache_file, 'r', encoding='utf-8') as f:
                         self._cache = json.load(f)
+                except UnicodeDecodeError:
+                    # Try with UTF-8 error handling
+                    with open(self._cache_file, 'r', encoding='utf-8', errors='replace') as f:
+                        self._cache = json.load(f)
                 logger.debug(f"Loaded translation cache with {len(self._cache)} entries")
             else:
                 self._cache = {}
@@ -147,6 +153,15 @@ class AvatarToolkitTranslationManager:
     def translate_single(self, name: str, category: str = "auto", 
                         source_lang: str = "ja", target_lang: str = "en") -> TranslationResult:
         """Translate a single name with comprehensive fallback logic"""
+        # Import safe_decode_text from translation_service
+        from .translation_service import safe_decode_text
+        
+        # Ensure name is properly encoded
+        try:
+            name = safe_decode_text(name)
+        except Exception as e:
+            logger.warning(f"Failed to decode name: {e}")
+        
         if not name or not name.strip():
             return TranslationResult(name, name, "skipped")
         
@@ -300,6 +315,8 @@ class AvatarToolkitTranslationManager:
     def _process_category_batch_optimized(self, category_jobs: List[TranslationJob], 
                                         completed: int, total_jobs: int, start_time: float) -> Optional[List[TranslationResult]]:
         """Process a batch of jobs from the same category using optimized API batch translation"""
+        from .translation_service import safe_decode_text
+        
         if not category_jobs:
             return []
         
@@ -315,6 +332,14 @@ class AvatarToolkitTranslationManager:
                 results[i] = TranslationResult(job.name, job.name, "skipped", category=job.category)
                 continue
             
+            # Ensure name is properly encoded
+            try:
+                original_name = safe_decode_text(job.name.strip())
+            except Exception as e:
+                logger.warning(f"Failed to decode job name: {e}")
+                original_name = job.name.strip()
+                continue
+            
             original_name = job.name.strip()
             
             # Check cache first
@@ -426,13 +451,21 @@ class AvatarToolkitTranslationManager:
     
     def translate_armature_bones(self, armature: Object, apply_results: bool = True) -> List[TranslationResult]:
         """Translate all bone names in an armature"""
+        from .translation_service import safe_decode_text
+        
         if not armature or armature.type != 'ARMATURE':
             return []
         
         jobs = []
         for bone in armature.data.bones:
+            try:
+                bone_name = safe_decode_text(bone.name)
+            except Exception as e:
+                logger.warning(f"Failed to decode bone name, using as-is: {e}")
+                bone_name = bone.name
+            
             jobs.append(TranslationJob(
-                name=bone.name,
+                name=bone_name,
                 category="bones",
                 object_ref=bone,
                 property_name="name"
@@ -442,13 +475,21 @@ class AvatarToolkitTranslationManager:
     
     def translate_object_shapekeys(self, mesh_obj: Object, apply_results: bool = True) -> List[TranslationResult]:
         """Translate all shape key names in a mesh object"""
+        from .translation_service import safe_decode_text
+        
         if not mesh_obj or mesh_obj.type != 'MESH' or not mesh_obj.data.shape_keys:
             return []
         
         jobs = []
         for shape_key in mesh_obj.data.shape_keys.key_blocks:
+            try:
+                sk_name = safe_decode_text(shape_key.name)
+            except Exception as e:
+                logger.warning(f"Failed to decode shape key name, using as-is: {e}")
+                sk_name = shape_key.name
+            
             jobs.append(TranslationJob(
-                name=shape_key.name,
+                name=sk_name,
                 category="shapekeys",
                 object_ref=shape_key,
                 property_name="name"
@@ -458,6 +499,8 @@ class AvatarToolkitTranslationManager:
     
     def translate_scene_materials(self, apply_results: bool = True) -> List[TranslationResult]:
         """Translate all material names in the scene"""
+        from .translation_service import safe_decode_text
+        
         jobs = []
         processed_materials: Set[str] = set()
         
@@ -465,8 +508,14 @@ class AvatarToolkitTranslationManager:
             if obj.type == 'MESH' and obj.data.materials:
                 for material in obj.data.materials:
                     if material and material.name not in processed_materials:
+                        try:
+                            mat_name = safe_decode_text(material.name)
+                        except Exception as e:
+                            logger.warning(f"Failed to decode material name, using as-is: {e}")
+                            mat_name = material.name
+                        
                         jobs.append(TranslationJob(
-                            name=material.name,
+                            name=mat_name,
                             category="materials",
                             object_ref=material,
                             property_name="name"
@@ -478,14 +527,22 @@ class AvatarToolkitTranslationManager:
     def translate_scene_objects(self, object_types: Optional[Set[str]] = None, 
                                apply_results: bool = True) -> List[TranslationResult]:
         """Translate all object names in the scene"""
+        from .translation_service import safe_decode_text
+        
         if object_types is None:
             object_types = {'MESH', 'ARMATURE', 'EMPTY'}
         
         jobs = []
         for obj in bpy.data.objects:
             if obj.type in object_types:
+                try:
+                    obj_name = safe_decode_text(obj.name)
+                except Exception as e:
+                    logger.warning(f"Failed to decode object name, using as-is: {e}")
+                    obj_name = obj.name
+                
                 jobs.append(TranslationJob(
-                    name=obj.name,
+                    name=obj_name,
                     category="objects",
                     object_ref=obj,
                     property_name="name"

core/translation_service.py

@@ -14,6 +14,43 @@ from .logging_setup import logger
 from .addon_preferences import save_preference, get_preference
 
 
+def safe_decode_text(text: str) -> str:
+    """Safely decode text that might be in various encodings (UTF-8, Shift-JIS, etc.)"""
+    if not text:
+        return text
+    
+    # If it's already a proper string, return it
+    if isinstance(text, str):
+        try:
+            # Test if it's valid UTF-8
+            text.encode('utf-8')
+            return text
+        except (UnicodeDecodeError, UnicodeEncodeError):
+            pass
+    
+    # Try common encodings for Japanese text
+    encodings = ['utf-8', 'shift-jis', 'cp932', 'euc-jp', 'iso-2022-jp']
+    
+    for encoding in encodings:
+        try:
+            if isinstance(text, bytes):
+                return text.decode(encoding)
+            else:
+                # Try to re-encode and decode
+                return text.encode('latin-1', errors='ignore').decode(encoding, errors='ignore')
+        except (UnicodeDecodeError, UnicodeEncodeError, AttributeError):
+            continue
+    
+    # Fallback: replace problematic characters
+    try:
+        if isinstance(text, bytes):
+            return text.decode('utf-8', errors='replace')
+        else:
+            return str(text).encode('utf-8', errors='replace').decode('utf-8')
+    except:
+        return str(text)
+
+
 @dataclass
 class TranslationRequest:
     """Represents a translation request"""
@@ -116,6 +153,8 @@ class DeepLService(TranslationService):
         
     def translate_text(self, text: str, source_lang: str = "ja", target_lang: str = "en") -> str:
         """Translate text using DeepL API"""
+        # Ensure text is properly encoded
+        text = safe_decode_text(text)
         logger.info(f"DeepL: Starting translation of '{text}' from {source_lang} to {target_lang}")
         
         if not text or not text.strip():
@@ -220,6 +259,8 @@ class DeepLService(TranslationService):
         if not texts:
             return []
         
+        # Ensure all texts are properly encoded
+        texts = [safe_decode_text(text) for text in texts]
         logger.info(f"DeepL: Starting batch translation of {len(texts)} texts from {source_lang} to {target_lang}")
         
         results = [None] * len(texts) 
@@ -341,6 +382,8 @@ class MyMemoryService(TranslationService):
         
     def translate_text(self, text: str, source_lang: str = "ja", target_lang: str = "en") -> str:
         """Translate text using MyMemory free API"""
+        # Ensure text is properly encoded
+        text = safe_decode_text(text)
         logger.info(f"MyMemory: Starting translation of '{text}' from {source_lang} to {target_lang}")
         
         if not text or not text.strip():
@@ -430,6 +473,8 @@ class MyMemoryService(TranslationService):
         if not texts:
             return []
         
+        # Ensure all texts are properly encoded
+        texts = [safe_decode_text(text) for text in texts]
         logger.info(f"MyMemory: Starting batch translation of {len(texts)} texts from {source_lang} to {target_lang}")
         
         results = [None] * len(texts)
@@ -545,6 +590,8 @@ class LibreTranslateService(TranslationService):
         
     def translate_text(self, text: str, source_lang: str = "ja", target_lang: str = "en") -> str:
         """Translate text using LibreTranslate API"""
+        # Ensure text is properly encoded
+        text = safe_decode_text(text)
         logger.info(f"LibreTranslate: Starting translation of '{text}' from {source_lang} to {target_lang}")
         
         if not text or not text.strip():
@@ -658,6 +705,8 @@ class LibreTranslateService(TranslationService):
         if not texts:
             return []
         
+        # Ensure all texts are properly encoded
+        texts = [safe_decode_text(text) for text in texts]
         logger.info(f"LibreTranslate: Starting batch translation of {len(texts)} texts from {source_lang} to {target_lang}")
         
         # Check cache and separate cached vs uncached texts
@@ -814,6 +863,8 @@ class TranslationServiceManager:
         
     def translate_with_fallback(self, text: str, source_lang: str = "ja", target_lang: str = "en") -> Tuple[str, str]:
         """Translate text with automatic fallback to other services"""
+        # Ensure text is properly encoded
+        text = safe_decode_text(text)
         if not text or not text.strip():
             return text, "none"
             

core/updater.py

@@ -19,8 +19,8 @@ GITHUB_REPO = "teamneoneko/Avatar-Toolkit"
 
 # Define which version series this installation can update to
 # For example: ["0.1"] means only look for 0.1.x updates
-# ["0.2", "0.3"] would look for both 0.2.x and 0.3.x updates
-ALLOWED_VERSION_SERIES = ["0.4"]
+# ["0.2", "0.3"] would look for both 0.2.x and 0.3.x
+ALLOWED_VERSION_SERIES = ["0.5"]
 
 is_checking_for_update: bool = False
 update_needed: bool = False

functions/atlas_materials.py

@@ -28,7 +28,15 @@ def scale_images_to_largest(images: List[Image]) -> tuple[int, int]:
     x: int = 0
     y: int = 0
     
-    valid_images = [img for img in images if img and img.has_data]
+    valid_images = []
+    for img in images:
+        if img:
+            try:
+                if img.has_data:
+                    valid_images.append(img)
+            except ReferenceError:
+                # Image has been removed from Blender's memory
+                pass
     
     if not valid_images:
         return 0, 0
@@ -66,50 +74,56 @@ def get_material_images_from_scene(context: Context) -> list[MaterialImageList]:
                             new_mat_image_item.albedo = bpy.data.images[mat_slot.material.texture_atlas_albedo]
                         except Exception:
                             name = mat_slot.material.name + "_albedo_replacement"
-                            if name in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                            if name not in bpy.data.images:
                                 new_mat_image_item.albedo = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
                                 new_mat_image_item.albedo.pixels[:] = numpy.tile(numpy.array([0.0,0.0,0.0,1.0]), 32*32)
+                            else:
+                                new_mat_image_item.albedo = bpy.data.images[name]
                         try:
                             new_mat_image_item.normal = bpy.data.images[mat_slot.material.texture_atlas_normal]
                         except Exception:
                             name = mat_slot.material.name + "_normal_replacement"
-                            if name in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                            if name not in bpy.data.images:
                                 new_mat_image_item.normal = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
                                 new_mat_image_item.normal.pixels[:] = numpy.tile(numpy.array([0.5,0.5,1.0,1.0]), 32*32)
+                            else:
+                                new_mat_image_item.normal = bpy.data.images[name]
                         try:
                             new_mat_image_item.emission = bpy.data.images[mat_slot.material.texture_atlas_emission]
                         except Exception:
                             name = mat_slot.material.name + "_emission_replacement"
-                            if name in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                            if name not in bpy.data.images:
                                 new_mat_image_item.emission = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
                                 new_mat_image_item.emission.pixels[:] = numpy.tile(numpy.array([0.0,0.0,0.0,1.0]), 32*32)
+                            else:
+                                new_mat_image_item.emission = bpy.data.images[name]
                         try:
                             new_mat_image_item.ambient_occlusion = bpy.data.images[mat_slot.material.texture_atlas_ambient_occlusion]
                         except Exception:
                             name = mat_slot.material.name + "_ambient_occlusion_replacement"
-                            if name in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                            if name not in bpy.data.images:
                                 new_mat_image_item.ambient_occlusion = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
                                 new_mat_image_item.ambient_occlusion.pixels[:] = numpy.tile(numpy.array([1.0,1.0,1.0,1.0]), 32*32)
+                            else:
+                                new_mat_image_item.ambient_occlusion = bpy.data.images[name]
                         try:
                             new_mat_image_item.height = bpy.data.images[mat_slot.material.texture_atlas_height]
                         except Exception:
                             name = mat_slot.material.name + "_height_replacement"
-                            if name in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                            if name not in bpy.data.images:
                                 new_mat_image_item.height = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
                                 new_mat_image_item.height.pixels[:] = numpy.tile(numpy.array([0.5,0.5,0.5,1.0]), 32*32)
+                            else:
+                                new_mat_image_item.height = bpy.data.images[name]
                         try:
                             new_mat_image_item.roughness = bpy.data.images[mat_slot.material.texture_atlas_roughness]
                         except Exception:
                             name = mat_slot.material.name + "_roughness_replacement"
-                            if name in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                            if name not in bpy.data.images:
                                 new_mat_image_item.roughness = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
                                 new_mat_image_item.roughness.pixels[:] = numpy.tile(numpy.array([1.0,1.0,1.0,0.0]), 32*32)
+                            else:
+                                new_mat_image_item.roughness = bpy.data.images[name]
                         
                         new_mat_image_item.material = mat_slot.material
                         new_mat_image_item.parent_mesh = obj
@@ -227,7 +241,7 @@ class AvatarToolKit_OT_AtlasMaterials(Operator):
             # Create material nodes
             atlased_mat.material = bpy.data.materials.new(
                 name=f"Atlas_Final_{context.scene.name}_{Path(bpy.data.filepath).stem}")
-            atlased_mat.material.use_nodes = True
+            # Note: material.use_nodes is deprecated in Blender 5.0 - materials always use nodes
             atlased_mat.material.node_tree.nodes.clear()
 
             principled_node = atlased_mat.material.node_tree.nodes.new(type="ShaderNodeBsdfPrincipled")

functions/custom_tools/armature_merging.py

@@ -102,6 +102,7 @@ class AvatarToolkit_OT_MergeArmature(bpy.types.Operator):
             wm.progress_update(100)
             wm.progress_end()
 
+            # Restore settings only for the base armature since merge_armature is removed during join
             restore_breaking_settings_armature(base_armature, data_breaking_base)
             if merge_armature_name_stored in bpy.data.objects:
                 merge_armature_obj = bpy.data.objects[merge_armature_name_stored]
@@ -124,8 +125,9 @@ class AvatarToolkit_OT_MergeArmature(bpy.types.Operator):
             return {'FINISHED'}
 
         except Exception as e:
-            logger.error(f"Error merging armatures: {str(e)}\n{traceback.format_exc()}")
-            self.report({'ERROR'}, traceback.format_exc())
+            errormessage: str = traceback.format_exc()
+            logger.error(f"Error merging armatures: {str(e)}\n{errormessage}")
+            self.report({'ERROR'}, f"Error merging armatures: {errormessage}")
             
             # Try to restore original mode even on error
             try:

functions/pose_mode.py

@@ -92,7 +92,7 @@ class AvatarToolkit_OT_StopPoseMode(Operator):
             self.report({'ERROR'}, t("PoseMode.error.stop", error=traceback.format_exc()))
             return {'CANCELLED'}
 
-class AvatarToolkit_OT_ApplyPoseAsRest(Operator, BatchPoseOperationMixin):
+class AvatarToolkit_OT_ApplyPoseAsShapekey(Operator, BatchPoseOperationMixin):
     bl_idname = 'avatar_toolkit.apply_pose_as_shapekey'
     bl_label = t("QuickAccess.apply_pose_as_shapekey.label")
     bl_description = t("QuickAccess.apply_pose_as_shapekey.desc")
@@ -136,7 +136,7 @@ class AvatarToolkit_OT_ApplyPoseAsRest(Operator, BatchPoseOperationMixin):
             self.report({'ERROR'}, t("PoseMode.error.shapekey", error=traceback.format_exc()))
             return {'CANCELLED'}
 
-class AvatarToolkit_OT_ApplyPoseAsShapekey(Operator, BatchPoseOperationMixin):
+class AvatarToolkit_OT_ApplyPoseAsRest(Operator, BatchPoseOperationMixin):
     bl_idname = 'avatar_toolkit.apply_pose_as_rest'
     bl_label = t("QuickAccess.apply_pose_as_rest.label")
     bl_description = t("QuickAccess.apply_pose_as_rest.desc")

functions/tools/bone_tools.py

@@ -1,5 +1,7 @@
 import traceback
 import bpy
+import bpy_extras
+from bpy_extras import anim_utils
 import re
 from bpy.types import Operator, Context, EditBone, Object, Armature, Mesh
 from typing import Optional, Dict, Any, List, Tuple
@@ -347,10 +349,17 @@ class AvatarToolKit_OT_FlipCurrentKeyFrames(Operator):
         armature_data.bones.foreach_set("select", [False] * len(armature_data.bones)) 
 
 
+        # Get channelbag for the action using Blender 5.0 API
+        action = armature.animation_data.action
+        if not action.slots:
+            slot = action.slots.new(for_id=armature.data)
+        else:
+            slot = action.slots[0]
+        channelbag = anim_utils.action_ensure_channelbag_for_slot(action, slot)
         
         #create a set for every frame time where we need to key a keyframe for the flipped pose
         times: Dict[float,list[bpy.types.FCurve]] = {}
-        for curve in armature.animation_data.action.fcurves:
+        for curve in channelbag.fcurves:
             if not curve.data_path.startswith("pose"):
                 continue
             for point in curve.keyframe_points:

functions/tools/uv_tools.py

@@ -8,6 +8,26 @@ from ...core.translations import t
 from ...core.logging_setup import logger
 import traceback
 
+
+def get_uv_vertex_selection(mesh: Mesh) -> List[bool]:
+    """
+    Get UV vertex selection state for Blender 5.0.
+    UV selection is stored in mesh attributes (.uv_select_vert).
+    """
+    uv_select_attr = mesh.attributes['.uv_select_vert']
+    selection = [False] * len(mesh.loops)
+    uv_select_attr.data.foreach_get('value', selection)
+    return selection
+
+
+def set_uv_vertex_selection(mesh: Mesh, loop_index: int, value: bool) -> None:
+    """
+    Set UV vertex selection state for Blender 5.0.
+    UV selection is stored in mesh attributes (.uv_select_vert).
+    """
+    uv_select_attr = mesh.attributes['.uv_select_vert']
+    uv_select_attr.data[loop_index].value = value
+
 class GenerateLoopTreeResult(TypedDict):
     tree: Dict[str, Set[str]]
     selected_loops: Dict[str, List[int]]
@@ -78,8 +98,9 @@ class AvatarToolkit_OT_AlignUVEdgesToTarget(Operator):
             # that two vertices share the same face loop, and therefore are connected.
 
             #hmmm real stupid grimlin hours with this one. Using a string as the index of a dictionary of loop corners that end up on the same coordinate
-            for k,i in enumerate(uv_lay.vertex_selection):
-                if (i.value == True) and (bm.verts[me.loops[k].vertex_index].select == True) and (bm.verts[me.loops[k].vertex_index].hide == False):
+            uv_selection = get_uv_vertex_selection(me)
+            for k, is_selected in enumerate(uv_selection):
+                if (is_selected == True) and (bm.verts[me.loops[k].vertex_index].select == True) and (bm.verts[me.loops[k].vertex_index].hide == False):
                     key = np.array(uv_lay.uv[k].vector[:])
                     key = key.round(decimals=5)
 
@@ -140,7 +161,7 @@ class AvatarToolkit_OT_AlignUVEdgesToTarget(Operator):
             uv_lay = me.uv_layers.active
             for uvcoordstr in vert_target_loops:
                 for loop in vert_target_loops[uvcoordstr]:
-                    uv_lay.vertex_selection[loop].value = True
+                    set_uv_vertex_selection(me, loop, True)
 
             bm.free()
             me.validate()

functions/visemes.py

@@ -137,15 +137,17 @@ class AvatarToolkit_OT_PreviewVisemes(Operator):
             return False
             
         # Get mesh from UI selection
+        from ..core.common import get_mesh_from_identifier
         props = context.scene.avatar_toolkit
-        mesh_obj = bpy.data.objects.get(props.viseme_mesh)
+        mesh_obj = get_mesh_from_identifier(props.viseme_mesh)
         
         # Validate mesh
         return mesh_obj and mesh_obj.type == 'MESH'
     
     def execute(self, context: Context) -> Set[str]:
+        from ..core.common import get_mesh_from_identifier
         props = context.scene.avatar_toolkit
-        mesh = bpy.data.objects.get(props.viseme_mesh)
+        mesh = get_mesh_from_identifier(props.viseme_mesh)
         
         if props.viseme_preview_mode:
             VisemePreview.end_preview(mesh)
@@ -191,15 +193,17 @@ class AvatarToolkit_OT_CreateVisemes(Operator):
             return False
             
         # Get mesh from UI selection
+        from ..core.common import get_mesh_from_identifier
         props = context.scene.avatar_toolkit
-        mesh_obj = bpy.data.objects.get(props.viseme_mesh)
+        mesh_obj = get_mesh_from_identifier(props.viseme_mesh)
         
         # Validate mesh
         return mesh_obj and mesh_obj.type == 'MESH'
 
     def execute(self, context: Context) -> Set[str]:
+        from ..core.common import get_mesh_from_identifier
         props = context.scene.avatar_toolkit
-        mesh = bpy.data.objects.get(props.viseme_mesh)  # Changed from context.active_object
+        mesh = get_mesh_from_identifier(props.viseme_mesh)
         
         if not mesh or not mesh.data.shape_keys:
             self.report({'ERROR'}, t("Visemes.error.no_shapekeys"))

resources/translations/en_US.json

@@ -1,7 +1,7 @@
 {
   "authors": ["Avatar Toolkit Team"],
   "messages": {
-    "AvatarToolkit.label": "Avatar Toolkit (Alpha 0.4.0)",
+    "AvatarToolkit.label": "Avatar Toolkit (Alpha 0.5.2)",
     "AvatarToolkit.desc1": "Avatar Toolkit is in Early Access there",
     "AvatarToolkit.desc2": "will be issues, if you find any issues,",
     "AvatarToolkit.desc3": "please report it on our Github.",
@@ -117,6 +117,15 @@
     "Validation.clear_bone_highlighting": "Clear Bone Highlighting",
     "Validation.clear_bone_highlighting_desc": "Remove bone highlighting and reset bone colors to default",
     "Validation.highlighting_cleared": "Bone highlighting cleared successfully",
+    "Validation.label": "Armature Validation",
+    "Validation.validate_now": "Validate Armature Now",
+    "Validation.validate_now_desc": "Run armature validation and display detailed results",
+    "Validation.results": "Validation Results",
+    "Validation.tpose.validate_now": "Validate T-Pose Now",
+
+    "Armature.validation.acceptable_standard.success": "Armature meets acceptable standards",
+    "Armature.validation.acceptable_standard.note": "This is a valid armature format that is compatible with most avatar systems",
+    "Armature.validation.acceptable_standard.option": "You can standardize the armature if desired",
 
     "Mesh.validation.no_data": "No mesh data",
     "Mesh.validation.no_vertex_groups": "No vertex groups found",
@@ -191,6 +200,7 @@
     "Tools.digitigrade_error": "Failed to create digitigrade legs: {error}",
     "Tools.digitigrade_success": "Successfully created digitigrade leg setup",
     "Tools.processing_leg": "Processing leg bone: {bone}",
+    "Tools.weight_title": "Weight Tools",
     "Tools.merge_twist_bones": "Keep Twist Bones",
     "Tools.merge_twist_bones_desc": "When checked, twist bones will be kept, even if there are zero-weight",
     "Tools.clean_weights": "Remove Zero Weight Bones",
@@ -587,7 +597,6 @@
     "VRM.validation.hierarchy_issues": "Conversion completed but hierarchy validation found issues:",
     "VRM.validation.armature_passed": "Armature passes standard validation",
     "VRM.validation.failed": "Conversion completed but validation failed: {error}",
-    "VRM.remove_colliders": "Remove Colliders",
     "VRM.remove_colliders_desc": "Remove VRM collider bones during conversion",
     "VRM.remove_root": "Remove Root Bone", 
     "VRM.remove_root_desc": "Remove unnecessary VRM root bone and make Hips the root bone",

resources/translations/ja_JP.json

@@ -1,7 +1,7 @@
 {
   "authors": ["Avatar Toolkit Team"],
   "messages": {
-    "AvatarToolkit.label": "アバターツールキット (アルファ 0.4.0)",
+    "AvatarToolkit.label": "アバターツールキット (アルファ 0.5.2)",
     "AvatarToolkit.desc1": "アバターツールキットは早期アクセス中であり、",
     "AvatarToolkit.desc2": "問題が発生する可能性があります。問題を見つけた場合は、",
     "AvatarToolkit.desc3": "GitHubで報告してください。",
@@ -117,6 +117,15 @@
     "Validation.clear_bone_highlighting": "ボーンの強調表示をクリア",
     "Validation.clear_bone_highlighting_desc": "ボーンの強調表示を削除し、ボーンの色をデフォルトにリセット",
     "Validation.highlighting_cleared": "ボーンの強調表示が正常にクリアされました",
+    "Validation.label": "アーマチュア検証",
+    "Validation.validate_now": "アーマチュアを検証する",
+    "Validation.validate_now_desc": "アーマチュア検証を実行し、詳細な結果を表示",
+    "Validation.results": "検証結果",
+    "Validation.tpose.validate_now": "T-ポーズを検証する",
+
+    "Armature.validation.acceptable_standard.success": "アーマチュアが許容可能な標準を満たしています",
+    "Armature.validation.acceptable_standard.note": "これは、ほとんどのアバターシステムと互換性のある有効なアーマチュア形式です",
+    "Armature.validation.acceptable_standard.option": "必要に応じてアーマチュアを標準化できます",
 
     "Mesh.validation.no_data": "メッシュデータがありません",
     "Mesh.validation.no_vertex_groups": "頂点グループが見つかりません",
@@ -194,6 +203,7 @@
     "Tools.digitigrade_error": "デジティグレード脚の作成に失敗: {error}",
     "Tools.digitigrade_success": "デジティグレード脚の設定が正常に作成されました",
     "Tools.processing_leg": "脚のボーンを処理中: {bone}",
+    "Tools.weight_title": "ウェイトツール",
     "Tools.merge_twist_bones": "ツイストボーンを保持",
     "Tools.merge_twist_bones_desc": "チェックすると、ウェイトがゼロでもツイストボーンが保持されます",
     "Tools.clean_weights": "ゼロウェイトボーンを削除",
@@ -549,7 +559,6 @@
     "VRM.armature_name": "アーマチュア: {name}",
     "VRM.armature_detected": "VRMアーマチュアが検出されました",
     "VRM.no_vrm_bones_detected": "VRMボーンが検出されませんでした",
-    "VRM.remove_colliders": "コライダーを削除",
     "VRM.remove_root_bone": "ルートボーンを削除",
     "VRM.convert_to_unity_format": "Unity形式に変換",
     "VRM.convert_to_unity.label": "VRMをUnityに変換",

resources/translations/ko_KR.json

@@ -1,7 +1,7 @@
 {
   "authors": ["Avatar Toolkit Team"],
   "messages": {
-    "AvatarToolkit.label": "아바타 툴킷 (알파 0.4.0)",
+    "AvatarToolkit.label": "아바타 툴킷 (알파 0.5.2)",
     "AvatarToolkit.desc1": "아바타 툴킷은 초기 액세스 단계에 있으므로",
     "AvatarToolkit.desc2": "문제가 있을 수 있습니다. 문제를 발견하시면",
     "AvatarToolkit.desc3": "Github에 보고해 주세요.",
@@ -117,6 +117,15 @@
     "Validation.clear_bone_highlighting": "본 강조 표시 지우기",
     "Validation.clear_bone_highlighting_desc": "본 강조 표시를 제거하고 본 색상을 기본값으로 재설정",
     "Validation.highlighting_cleared": "본 강조 표시 지우기 성공",
+    "Validation.label": "아마추어 검증",
+    "Validation.validate_now": "지금 아마추어 검증",
+    "Validation.validate_now_desc": "아마추어 검증을 실행하고 자세한 결과 표시",
+    "Validation.results": "검증 결과",
+    "Validation.tpose.validate_now": "지금 T-포즈 검증",
+
+    "Armature.validation.acceptable_standard.success": "아마추어가 허용 가능한 표준을 충족합니다",
+    "Armature.validation.acceptable_standard.note": "이것은 대부분의 아바타 시스템과 호환되는 유효한 아마추어 형식입니다",
+    "Armature.validation.acceptable_standard.option": "필요한 경우 아마추어를 표준화할 수 있습니다",
 
     "Mesh.validation.no_data": "메시 데이터 없음",
     "Mesh.validation.no_vertex_groups": "버텍스 그룹을 찾을 수 없음",
@@ -194,6 +203,7 @@
     "Tools.digitigrade_error": "디지티그레이드 다리 생성 실패: {error}",
     "Tools.digitigrade_success": "디지티그레이드 다리 설정 생성 성공",
     "Tools.processing_leg": "다리 본 처리 중: {bone}",
+    "Tools.weight_title": "가중치 도구",
     "Tools.merge_twist_bones": "트위스트 본 유지",
     "Tools.merge_twist_bones_desc": "체크하면 가중치가 0이더라도 트위스트 본이 유지됩니다",
     "Tools.clean_weights": "가중치 0인 본 제거",
@@ -549,7 +559,6 @@
     "VRM.armature_name": "아마추어: {name}",
     "VRM.armature_detected": "VRM 아마추어 감지됨",
     "VRM.no_vrm_bones_detected": "VRM 본이 감지되지 않음",
-    "VRM.remove_colliders": "콜라이더 제거",
     "VRM.remove_root_bone": "루트 본 제거",
     "VRM.convert_to_unity_format": "Unity 형식으로 변환",
     "VRM.convert_to_unity.label": "VRM을 Unity로 변환",

ui/atlas_materials_panel.py

@@ -2,6 +2,7 @@ from bpy.types import UIList, Panel, UILayout, Object, Context, Material, Operat
 import bpy
 from math import sqrt
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.common import SceneMatClass, MaterialListBool, get_active_armature
 from ..functions.atlas_materials import AvatarToolKit_OT_AtlasMaterials
 from ..core.translations import t
@@ -214,7 +215,8 @@ class AvatarToolKit_PT_TextureAtlasPanel(Panel):
     bl_region_type = 'UI'
     bl_category = CATEGORY_NAME
     bl_parent_id = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order = 7
+    bl_order = get_panel_order('texture_atlas')
+    bl_options = set() if not should_open_by_default('TEXTURE_ATLAS') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context):
         layout = self.layout

ui/custom_avatar_panel.py

@@ -2,6 +2,7 @@ import bpy
 from typing import Set, List, Tuple, Any
 from bpy.types import Panel, Context, UILayout, Operator, Event, WindowManager
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .panel_layout import get_panel_order, should_open_by_default
 from ..functions.custom_tools.mesh_attachment import AvatarToolkit_OT_AttachMesh
 from ..functions.custom_tools.armature_merging import AvatarToolkit_OT_MergeArmature
 from ..core.translations import t
@@ -112,8 +113,8 @@ class AvatarToolKit_PT_CustomPanel(Panel):
     bl_region_type: str = 'UI'
     bl_category: str = CATEGORY_NAME
     bl_parent_id: str = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order: int = 4
-    bl_options: Set[str] = {'DEFAULT_CLOSED'}
+    bl_order: int = get_panel_order('custom_avatar')
+    bl_options: Set[str] = set() if not should_open_by_default('CUSTOM_AVATAR') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context) -> None:
         """Draw the custom avatar panel UI"""

ui/eye_tracking_panel.py

@@ -2,6 +2,8 @@ import bpy
 from typing import Set
 from bpy.types import Panel, Context, UILayout, Operator, Event, WindowManager
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .ui_utils import UIStyle, draw_section_header, wrap_text_label
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.translations import t
 from ..core.common import get_active_armature, get_all_meshes
 from ..functions.eye_tracking import (
@@ -26,38 +28,37 @@ class AvatarToolKit_PT_EyeTrackingPanel(Panel):
     bl_region_type: str = 'UI'
     bl_category: str = CATEGORY_NAME
     bl_parent_id: str = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order: int = 6
-    bl_options: Set[str] = {'DEFAULT_CLOSED'}
+    bl_order: int = get_panel_order('eye_tracking')
+    bl_options: Set[str] = set() if not should_open_by_default('EYE_TRACKING') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context) -> None:
         """Draw the eye tracking panel interface"""
         layout: UILayout = self.layout
         toolkit = context.scene.avatar_toolkit
 
-        # SDK Version Selection Box
-        sdk_box: UILayout = layout.box()
-        col: UILayout = sdk_box.column(align=True)
-        col.label(text=t("EyeTracking.sdk_version"), icon='PRESET')
-        col.separator(factor=0.5)
+        # SDK Version Selection
+        col = draw_section_header(layout, t("EyeTracking.sdk_version"), icon='PRESET')
         row: UILayout = col.row(align=True)
         row.prop(toolkit, "eye_tracking_type", expand=True)
 
         if toolkit.eye_tracking_type == 'SDK2':
-            # SDK2 Warning Box
+            # SDK2 Warning
             warning_box: UILayout = layout.box()
             col: UILayout = warning_box.column(align=True)
-            col.label(text=t("EyeTracking.sdk2_warning"), icon='INFO')
-            col.separator(factor=0.5)
-            col.label(text=t("EyeTracking.sdk2_warning_detail1"))
-            col.label(text=t("EyeTracking.sdk2_warning_detail2"))
-            col.label(text=t("EyeTracking.sdk2_warning_detail3"))
-            col.label(text=t("EyeTracking.sdk2_warning_detail4"))
+            col.alert = True
+            col.label(text=t("EyeTracking.sdk2_warning"), icon='ERROR')
+            col.separator(factor=UIStyle.SUBSECTION_SEPARATOR_FACTOR)
             
-            # Mode Selection Box
-            mode_box: UILayout = layout.box()
-            col: UILayout = mode_box.column(align=True)
-            col.label(text=t("EyeTracking.setup"), icon='TOOL_SETTINGS')
-            col.separator(factor=0.5)
+            warning_text = "\n".join([
+                t("EyeTracking.sdk2_warning_detail1"),
+                t("EyeTracking.sdk2_warning_detail2"),
+                t("EyeTracking.sdk2_warning_detail3"),
+                t("EyeTracking.sdk2_warning_detail4")
+            ])
+            wrap_text_label(col, warning_text, max_length=45)
+            
+            # Mode Selection
+            col = draw_section_header(layout, t("EyeTracking.setup"), icon='TOOL_SETTINGS')
             col.prop(toolkit, "eye_mode", expand=True)
 
             if toolkit.eye_mode == 'CREATION':
@@ -72,11 +73,9 @@ class AvatarToolKit_PT_EyeTrackingPanel(Panel):
         """Draw the AV3 eye tracking setup interface"""
         toolkit = context.scene.avatar_toolkit
 
-        # Bone Setup Box
-        bone_box: UILayout = layout.box()
-        col: UILayout = bone_box.column(align=True)
-        col.label(text=t("EyeTracking.bone_setup"), icon='BONE_DATA')
-        col.separator(factor=0.5)
+        # Bone Setup
+        col = draw_section_header(layout, t("EyeTracking.bone_setup"), icon='BONE_DATA')
+
 
         armature = get_active_armature(context)
         if armature:
@@ -86,21 +85,16 @@ class AvatarToolKit_PT_EyeTrackingPanel(Panel):
         else:
             col.label(text=t("EyeTracking.no_armature"), icon='ERROR')
 
-        # Create Button
         row: UILayout = layout.row(align=True)
-        row.scale_y = 1.5
+        row.scale_y = UIStyle.PRIMARY_BUTTON_SCALE
         row.operator(CreateEyesAV3Button.bl_idname, icon='PLAY')
 
     def draw_creation_mode(self, context: Context, layout: UILayout) -> None:
         """Draw the eye tracking creation mode interface"""
         toolkit = context.scene.avatar_toolkit
 
-        # Bone Setup Box
-        bone_box: UILayout = layout.box()
-        col: UILayout = bone_box.column(align=True)
-        col.label(text=t("EyeTracking.bone_setup"), icon='BONE_DATA')
-        col.separator(factor=0.5)
-
+        # Bone Setup
+        col = draw_section_header(layout, t("EyeTracking.bone_setup"), icon='BONE_DATA')
         armature = get_active_armature(context)
         if armature:
             col.prop_search(toolkit, "head", armature.data, "bones", text=t("EyeTracking.head_bone"))
@@ -109,19 +103,12 @@ class AvatarToolKit_PT_EyeTrackingPanel(Panel):
         else:
             col.label(text=t("EyeTracking.no_armature"), icon='ERROR')
 
-        # Mesh Setup Box
-        mesh_box: UILayout = layout.box()
-        col: UILayout = mesh_box.column(align=True)
-        col.label(text=t("EyeTracking.mesh_setup"), icon='MESH_DATA')
-        col.separator(factor=0.5)
+        # Mesh Setup
+        col = draw_section_header(layout, t("EyeTracking.mesh_setup"), icon='MESH_DATA')
         col.prop_search(toolkit, "mesh_name_eye", bpy.data, "objects", text="")
 
-        # Shape Key Setup Box
-        shape_box: UILayout = layout.box()
-        col: UILayout = shape_box.column(align=True)
-        col.label(text=t("EyeTracking.shapekey_setup"), icon='SHAPEKEY_DATA')
-        col.separator(factor=0.5)
-
+        # Shape Key Setup
+        col = draw_section_header(layout, t("EyeTracking.shapekey_setup"), icon='SHAPEKEY_DATA')
         mesh = bpy.data.objects.get(toolkit.mesh_name_eye)
         if mesh and mesh.data.shape_keys:
             col.prop_search(toolkit, "wink_left", mesh.data.shape_keys, "key_blocks", text=t("EyeTracking.wink_left"))
@@ -131,19 +118,15 @@ class AvatarToolKit_PT_EyeTrackingPanel(Panel):
         else:
             col.label(text=t("EyeTracking.no_shapekeys"), icon='ERROR')
 
-        # Options Box
-        options_box: UILayout = layout.box()
-        col: UILayout = options_box.column(align=True)
-        col.label(text=t("EyeTracking.options"), icon='SETTINGS')
-        col.separator(factor=0.5)
+        # Options
+        col = draw_section_header(layout, t("EyeTracking.options"), icon='SETTINGS')
         col.prop(toolkit, "disable_eye_blinking")
         col.prop(toolkit, "disable_eye_movement")
         if not toolkit.disable_eye_movement:
             col.prop(toolkit, "eye_distance")
 
-        # Create Button
         row: UILayout = layout.row(align=True)
-        row.scale_y = 1.5
+        row.scale_y = UIStyle.PRIMARY_BUTTON_SCALE
         row.operator(CreateEyesSDK2Button.bl_idname, icon='PLAY')
 
     def draw_testing_mode(self, context: Context, layout: UILayout) -> None:
@@ -151,37 +134,25 @@ class AvatarToolKit_PT_EyeTrackingPanel(Panel):
         toolkit = context.scene.avatar_toolkit
 
         if context.mode != 'POSE':
-            # Testing Start Box
-            test_box: UILayout = layout.box()
-            col: UILayout = test_box.column(align=True)
-            col.label(text=t("EyeTracking.testing"), icon='PLAY')
-            col.separator(factor=0.5)
+            # Testing Start
+            col = draw_section_header(layout, t("EyeTracking.testing"), icon='PLAY')
             row: UILayout = col.row(align=True)
-            row.scale_y = 1.5
+            row.scale_y = UIStyle.PRIMARY_BUTTON_SCALE
             row.operator(StartTestingButton.bl_idname, icon='PLAY')
         else:
-            # Eye Rotation Box
-            rotation_box: UILayout = layout.box()
-            col: UILayout = rotation_box.column(align=True)
-            col.label(text=t("EyeTracking.rotation_controls"), icon='DRIVER_ROTATIONAL_DIFFERENCE')
-            col.separator(factor=0.5)
+            # Eye Rotation
+            col = draw_section_header(layout, t("EyeTracking.rotation_controls"), icon='DRIVER_ROTATIONAL_DIFFERENCE')
             col.prop(toolkit, "eye_rotation_x", text=t("EyeTracking.rotation.x"))
             col.prop(toolkit, "eye_rotation_y", text=t("EyeTracking.rotation.y"))
             col.operator(ResetRotationButton.bl_idname, icon='LOOP_BACK')
 
-            # Eye Adjustment Box
-            adjust_box: UILayout = layout.box()
-            col: UILayout = adjust_box.column(align=True)
-            col.label(text=t("EyeTracking.adjustments"), icon='MODIFIER')
-            col.separator(factor=0.5)
+            # Eye Adjustment
+            col = draw_section_header(layout, t("EyeTracking.adjustments"), icon='MODIFIER')
             col.prop(toolkit, "eye_distance")
             col.operator(AdjustEyesButton.bl_idname, icon='CON_TRACKTO')
 
-            # Blinking Test Box
-            blink_box: UILayout = layout.box()
-            col: UILayout = blink_box.column(align=True)
-            col.label(text=t("EyeTracking.blink_testing"), icon='HIDE_OFF')
-            col.separator(factor=0.5)
+            # Blinking Test
+            col = draw_section_header(layout, t("EyeTracking.blink_testing"), icon='HIDE_OFF')
             row: UILayout = col.row(align=True)
             row.prop(toolkit, "eye_blink_shape")
             row.operator(TestBlinking.bl_idname, icon='RESTRICT_VIEW_OFF')
@@ -192,7 +163,7 @@ class AvatarToolKit_PT_EyeTrackingPanel(Panel):
 
             # Stop Testing Button
             row: UILayout = layout.row(align=True)
-            row.scale_y = 1.5
+            row.scale_y = UIStyle.PRIMARY_BUTTON_SCALE
             row.operator(StopTestingButton.bl_idname, icon='PAUSE')
 
         # Reset Button

ui/main_panel.py

@@ -1,6 +1,7 @@
 import bpy
 from typing import Optional, Set
 from bpy.types import Panel, Context, UILayout
+from .ui_utils import UIStyle, wrap_text_label
 from ..core.translations import t
 
 CATEGORY_NAME: str = "Avatar Toolkit"
@@ -16,13 +17,14 @@ def draw_title(self: Panel) -> None:
     row.scale_y: float = 1.2
     row.label(text=t("AvatarToolkit.label"), icon='ARMATURE_DATA')
     
-    # Description as a flowing paragraph
-    desc_col: UILayout = col.column()
-    desc_col.scale_y: float = 0.6
-    desc_col.label(text=t("AvatarToolkit.desc1"))
-    desc_col.label(text=t("AvatarToolkit.desc2"))
-    desc_col.label(text=t("AvatarToolkit.desc3"))
-    col.separator()
+    # Description
+    col.separator(factor=UIStyle.SECTION_SEPARATOR_FACTOR)
+    description = " ".join([
+        t("AvatarToolkit.desc1"),
+        t("AvatarToolkit.desc2"),
+        t("AvatarToolkit.desc3")
+    ])
+    wrap_text_label(col, description, max_length=50)
 
 class AvatarToolKit_PT_AvatarToolkitPanel(Panel):
     """Main panel for Avatar Toolkit containing general information and settings"""

ui/optimization_panel.py

@@ -2,6 +2,8 @@ import bpy
 from typing import Set
 from bpy.types import Panel, Context, UILayout, Operator
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .ui_utils import UIStyle, draw_section_header, draw_operator_row
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.translations import t
 from ..functions.optimization.materials_tools import AvatarToolkit_OT_CombineMaterials
 from ..functions.optimization.remove_doubles import AvatarToolkit_OT_RemoveDoubles
@@ -15,39 +17,24 @@ class AvatarToolKit_PT_OptimizationPanel(Panel):
     bl_region_type: str = 'UI'
     bl_category: str = CATEGORY_NAME
     bl_parent_id: str = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order: int = 1
-    bl_options = {'DEFAULT_CLOSED'}
+    bl_order: int = get_panel_order('optimization')
+    bl_options = set() if not should_open_by_default('OPTIMIZATION') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context) -> None:
         """Draws the optimization panel interface with material, mesh cleanup and join mesh tools"""
         layout: UILayout = self.layout
         
-        # Materials Box
-        materials_box: UILayout = layout.box()
-        col: UILayout = materials_box.column(align=True)
-        col.label(text=t("Optimization.materials_title"), icon='MATERIAL')
-        col.separator(factor=0.5)
-                
-        # Material Operations
+        # Materials section
+        col = draw_section_header(layout, t("Optimization.materials_title"), icon='MATERIAL')
         col.operator(AvatarToolkit_OT_CombineMaterials.bl_idname, icon='MATERIAL')
         
-        # Mesh Cleanup Box
-        cleanup_box: UILayout = layout.box()
-        col: UILayout = cleanup_box.column(align=True)
-        col.label(text=t("Optimization.cleanup_title"), icon='MESH_DATA')
-        col.separator(factor=0.5)
+        # Mesh Cleanup section
+        col = draw_section_header(layout, t("Optimization.cleanup_title"), icon='MESH_DATA')
+        col.operator(AvatarToolkit_OT_RemoveDoubles.bl_idname, icon='MESH_DATA')
         
-        # Remove Doubles Row
-        row: UILayout = col.row(align=True)
-        row.operator(AvatarToolkit_OT_RemoveDoubles.bl_idname, icon='MESH_DATA')
-        
-        # Join Meshes Box
-        join_box: UILayout = layout.box()
-        col: UILayout = join_box.column(align=True)
-        col.label(text=t("Optimization.join_meshes_title"), icon='OBJECT_DATA')
-        col.separator(factor=0.5)
-        
-        # Join Meshes Row
-        row: UILayout = col.row(align=True)
-        row.operator(AvatarToolkit_OT_JoinAllMeshes.bl_idname, icon='OBJECT_DATA')
-        row.operator(AvatarToolkit_OT_JoinSelectedMeshes.bl_idname, icon='RESTRICT_SELECT_OFF')
+        # Join Meshes section
+        col = draw_section_header(layout, t("Optimization.join_meshes_title"), icon='OBJECT_DATA')
+        draw_operator_row(col, [
+            (AvatarToolkit_OT_JoinAllMeshes.bl_idname, t("Optimization.join_all_meshes"), 'OBJECT_DATA'),
+            (AvatarToolkit_OT_JoinSelectedMeshes.bl_idname, t("Optimization.join_selected_meshes"), 'RESTRICT_SELECT_OFF')
+        ])

ui/panel_layout.py

@@ -0,0 +1,53 @@
+"""Panel ordering and organization guide for Avatar Toolkit UI
+This module defines the standard panel order and grouping for the Avatar Toolkit.
+"""
+
+# Main Panel
+MAIN_PANEL_ORDER = -1  # Always first (parent panel)
+QUICK_ACCESS_ORDER = 0
+OPTIMIZATION_ORDER = 1
+TOOLS_ORDER = 2
+CUSTOM_TOOLS_ORDER = 3
+CUSTOM_AVATAR_ORDER = 4
+TRANSLATION_ORDER = 5
+VISEMES_ORDER = 6
+EYE_TRACKING_ORDER = 7
+TEXTURE_ATLAS_ORDER = 8
+VRM_UNITY_ORDER = 9
+SETTINGS_ORDER = 10
+
+# Panel open/closed by default
+PANELS_OPEN_BY_DEFAULT = {
+    'QUICK_ACCESS': False, 
+    'OPTIMIZATION': True,   
+    'TOOLS': True,          
+    'CUSTOM_TOOLS': True,   
+    'CUSTOM_AVATAR': True,  
+    'VISEMES': True,        
+    'EYE_TRACKING': True,   
+    'TEXTURE_ATLAS': True,  
+    'VRM_UNITY': True,      
+    'SETTINGS': True,       
+    'TRANSLATION': True,   
+}
+
+def get_panel_order(panel_name: str) -> int:
+    """Get the recommended bl_order value for a panel"""
+    order_map = {
+        'quick_access': QUICK_ACCESS_ORDER,
+        'optimization': OPTIMIZATION_ORDER,
+        'tools': TOOLS_ORDER,
+        'custom_tools': CUSTOM_TOOLS_ORDER,
+        'custom_avatar': CUSTOM_AVATAR_ORDER,
+        'translation': TRANSLATION_ORDER,
+        'visemes': VISEMES_ORDER,
+        'eye_tracking': EYE_TRACKING_ORDER,
+        'texture_atlas': TEXTURE_ATLAS_ORDER,
+        'vrm_unity': VRM_UNITY_ORDER,
+        'settings': SETTINGS_ORDER,
+    }
+    return order_map.get(panel_name.lower(), 99)
+
+def should_open_by_default(panel_name: str) -> bool:
+    """Check if a panel should be open by default"""
+    return PANELS_OPEN_BY_DEFAULT.get(panel_name.upper(), True)

ui/quick_access_panel.py

@@ -10,6 +10,8 @@ from bpy.types import (
     Object
 )
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .ui_utils import UIStyle, draw_section_header, draw_operator_row
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.translations import t
 from ..core.common import (
     get_active_armature, 
@@ -34,7 +36,7 @@ from ..functions.pose_mode import (
     AvatarToolkit_OT_ApplyPoseAsShapekey,
     AvatarToolkit_OT_ApplyPoseAsRest
 )
-from ..core.armature_validation import validate_armature, AvatarToolkit_OT_ValidateTPose
+from ..core.armature_validation import validate_armature, AvatarToolkit_OT_ValidateTPose, is_pmx_model
 from ..core.importers.importer import AvatarToolKit_OT_Import
 from ..core.resonite_utils import AvatarToolKit_OT_ExportResonite
 from ..functions.tools.standardize_armature import AvatarToolkit_OT_StandardizeArmature
@@ -79,26 +81,37 @@ class AvatarToolKit_PT_QuickAccessPanel(Panel):
     bl_region_type: str = 'UI'
     bl_category: str = CATEGORY_NAME
     bl_parent_id: str = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order: int = 0
+    bl_order: int = get_panel_order('quick_access')
+    bl_options = {'DEFAULT_CLOSED'} if should_open_by_default('QUICK_ACCESS') else set()
 
     def draw(self, context: Context) -> None:
         """Draw the panel layout"""
         layout: UILayout = self.layout
         props = context.scene.avatar_toolkit
         
-        # Armature Selection Box
-        armature_box: UILayout = layout.box()
-        col: UILayout = armature_box.column(align=True)
-        col.label(text=t("QuickAccess.select_armature"), icon='ARMATURE_DATA')
-        col.separator(factor=0.5)
-        
         # Armature Selection
+        col = draw_section_header(layout, t("QuickAccess.select_armature"), icon='ARMATURE_DATA')
         col.prop(context.scene.avatar_toolkit, "active_armature", text="")
         
-        # Armature Validation (cached to improve performance)
+        # Get active armature
         active_armature: Optional[Object] = get_active_armature(context)
         if active_armature:
-            # Cache validation results to avoid expensive recalculations on every draw
+            # Validation Section
+            col = draw_section_header(layout, t("Validation.label", "Armature Validation"), icon='CHECKMARK')
+            
+            # Main validate button with prominent styling
+            validate_row = col.row(align=True)
+            validate_row.scale_y = UIStyle.PRIMARY_BUTTON_SCALE
+            validate_row.operator("avatar_toolkit.validate_armature_manual", 
+                                text=t("Validation.validate_now", "Validate Armature Now"), 
+                                icon='CHECKMARK')
+            
+            # Validation mode selector
+            col.prop(props, "validation_mode", text=t("Settings.validation_mode", "Mode"))
+            
+            # Show validation results if flag is set
+            if props.show_validation_results:
+                # Cache validation results
                 cache_key = f"validation_{active_armature.name}_{active_armature.data.name}_{len(active_armature.data.bones)}"
                 
                 if cache_key not in _validation_cache:
@@ -107,15 +120,16 @@ class AvatarToolKit_PT_QuickAccessPanel(Panel):
                 is_valid, messages, is_acceptable, hierarchy_messages, scale_messages, non_standard_messages = _validation_cache[cache_key]
                 
                 # Check if this is a PMX model
-            is_pmx_model = False
-            if hasattr(active_armature, 'mmd_type') or (hasattr(active_armature, 'parent') and active_armature.parent and hasattr(active_armature.parent, 'mmd_type')):
-                is_pmx_model = True
+                pmx_detected = is_pmx_model(active_armature)
                 
-            info_box = col.box()
+                results_box = col.box()
+                row = results_box.row()
+                row.prop(props, "show_validation_results", text=t("Validation.results", "Validation Results"), 
+                        icon='TRIA_DOWN' if props.show_validation_results else 'TRIA_RIGHT', emboss=False)
                 
-            # If it's a PMX model, display a prominent notice
-            if is_pmx_model:
-                pmx_box = info_box.box()
+                # PMX Model Notice
+                if pmx_detected:
+                    pmx_box = results_box.box()
                     pmx_box.label(text=t("Armature.validation.pmx_model_detected"), icon='INFO')
                     
                     validation_mode = context.scene.avatar_toolkit.validation_mode
@@ -125,38 +139,35 @@ class AvatarToolKit_PT_QuickAccessPanel(Panel):
                     else:
                         pmx_box.label(text=t("Armature.validation.pmx_model_basic"))
                 
+                # Validation Results
                 if not is_valid:
-                # Display non-standard bones and hierarchy issues
+                    # Display found bones
                     if messages and len(messages) > 0:
-                    # Found Bones section
-                    validation_box = info_box.box()
-                    row = validation_box.row()
-                    row.prop(props, "show_found_bones", text=t("Validation.section.found_bones"), icon='TRIA_DOWN' if props.show_found_bones else 'TRIA_RIGHT', emboss=False)
-                    if props.show_found_bones and len(messages) > 0:
+                        bones_section = results_box.box()
+                        row = bones_section.row()
+                        row.prop(props, "show_found_bones", text=t("Validation.section.found_bones"), 
+                                icon='TRIA_DOWN' if props.show_found_bones else 'TRIA_RIGHT', emboss=False)
+                        if props.show_found_bones:
                             for line in messages[0].split('\n'):
-                            validation_box.label(text=line)
+                                bones_section.label(text=line)
                     
-                    # Main validation status
-                    validation_box = info_box.box()
-                    row = validation_box.row()
+                    # Status message
+                    status_box = results_box.box()
+                    row = status_box.row()
                     row.alert = True
-                    row.label(text=t("Validation.status.failed"))
+                    row.label(text=t("Validation.status.failed"), icon='ERROR')
                     
-                    # Detailed validation message
-                    validation_box = info_box.box()
-                    row = validation_box.row()
-                    row.alert = True
-                    row.label(text=t("Validation.message.failed.line1"))
-                    row = validation_box.row()
-                    row.alert = True
-                    row.label(text=t("Validation.message.failed.line2"))
-                    row = validation_box.row()
-                    row.alert = True
-                    row.label(text=t("Validation.message.failed.line3"))
+                    # Error explanation
+                    error_box = results_box.box()
+                    error_box.alert = True
+                    error_box.label(text=t("Validation.message.failed.line1"))
+                    error_box.label(text=t("Validation.message.failed.line2"))
+                    error_box.label(text=t("Validation.message.failed.line3"))
                     
                     # Non-Standard Bones section
-                    validation_box = info_box.box()
-                    row = validation_box.row()
+                    if non_standard_messages or pmx_detected:
+                        ns_section = results_box.box()
+                        row = ns_section.row()
                         row.alert = True
                         row.prop(props, "show_non_standard", text=t("Validation.section.non_standard"), 
                                 icon='TRIA_DOWN' if props.show_non_standard else 'TRIA_RIGHT', emboss=False)
@@ -164,161 +175,108 @@ class AvatarToolKit_PT_QuickAccessPanel(Panel):
                             if non_standard_messages and len(non_standard_messages) > 0:
                                 for message in non_standard_messages:
                                     for line in message.split('\n'):
-                                    sub_row = validation_box.row()
+                                        sub_row = ns_section.row()
                                         sub_row.alert = True
                                         sub_row.label(text=line)
+                            elif pmx_detected:
+                                ns_section.alert = True
+                                ns_section.label(text=t("Armature.validation.pmx_model_basic"))
+                                ns_section.label(text=t("Armature.validation.pmx_model_strict"))
+                                ns_section.label(text=t("Armature.validation.pmx_model_standardize"))
                             else:
-                            # For PMX models, if no non-standard messages but it's a PMX model,
-                            # we should still indicate there might be non-standard bones
-                            if is_pmx_model:
-                                sub_row = validation_box.row()
-                                sub_row.alert = True
-                                sub_row.label(text=t("Armature.validation.pmx_model_basic"))
-                                
-                                sub_row = validation_box.row()
-                                sub_row.alert = True
-                                sub_row.label(text=t("Armature.validation.pmx_model_strict"))
-                                
-                                sub_row = validation_box.row()
-                                sub_row.alert = True
-                                sub_row.label(text=t("Armature.validation.pmx_model_standardize"))
-                                
-                            else:
-                                sub_row = validation_box.row()
-                                sub_row.label(text=t("Validation.no_non_standard_issues"))
+                                ns_section.label(text=t("Validation.no_non_standard_issues"))
                     
                     # Hierarchy Issues section
-                    validation_box = info_box.box()
-                    row = validation_box.row()
+                    if hierarchy_messages:
+                        hier_section = results_box.box()
+                        row = hier_section.row()
                         row.alert = True
                         row.prop(props, "show_hierarchy", text=t("Validation.section.hierarchy"), 
                                 icon='TRIA_DOWN' if props.show_hierarchy else 'TRIA_RIGHT', emboss=False)
                         if props.show_hierarchy:
-                        if hierarchy_messages:
                             for message in hierarchy_messages:
-                                sub_row = validation_box.row()
+                                sub_row = hier_section.row()
                                 sub_row.alert = True
                                 sub_row.label(text=message)
-                        else:
-                            sub_row = validation_box.row()
-                            sub_row.label(text=t("Validation.no_hierarchy_issues"))
                     
                     # Scale Issues section
-                    validation_box = info_box.box()
-                    row = validation_box.row()
+                    if scale_messages:
+                        scale_section = results_box.box()
+                        row = scale_section.row()
                         row.alert = True
                         row.prop(props, "show_scale_issues", text=t("Validation.section.scale_issues"), 
                                 icon='TRIA_DOWN' if props.show_scale_issues else 'TRIA_RIGHT', emboss=False)
                         if props.show_scale_issues:
-                        if scale_messages:
                             for scale_msg in scale_messages:
-                                sub_row = validation_box.row()
+                                sub_row = scale_section.row()
                                 sub_row.alert = True
                                 sub_row.label(text=scale_msg)
-                        else:
-                            sub_row = validation_box.row()
-                            sub_row.label(text=t("Validation.no_scale_issues"))
                 
-                    pose_box = layout.box()
-                    col = pose_box.column(align=True)
-                    col.label(text=t("Validation.tpose.label"), icon='ARMATURE_DATA')
-                    col.separator(factor=0.5)
-                    col.operator(AvatarToolkit_OT_ValidateTPose.bl_idname, icon='CHECKMARK')
-
-                    if props.show_tpose_validation:
-                        validation_box = col.box()
-                        if props.tpose_validation_result:
-                            validation_box.label(text=t("Validation.tpose.valid"), icon='CHECKMARK')
-                        else:
-                            row = validation_box.row()
-                            row.alert = True
-                            row.label(text=t("Validation.tpose.warning"), icon='ERROR')
-                            
-                            for msg in props.tpose_validation_messages:
-                                row = validation_box.row()
-                                row.alert = True
-                                row.label(text=msg.name)
-                else:
-                    # If no specific issues, show acceptable message
-                    if messages and len(messages) > 0:
-                        info_box.label(text=messages[0], icon='INFO')
-                        if len(messages) > 1:
-                            info_box.label(text=messages[1])
-                        if len(messages) > 2:
-                            info_box.label(text=messages[2])
-                    else:
-                        info_box.label(text=t("Validation.no_messages"), icon='INFO')
                 elif is_valid and not is_acceptable:
-                row = info_box.row()
-                split = row.split(factor=0.6)
-                split.label(text=t("QuickAccess.valid_armature"), icon='CHECKMARK')
-                
-                # Cache armature stats to avoid expensive recalculations
+                    # Valid armature - show stats
                     stats_cache_key = f"stats_{active_armature.name}_{active_armature.data.name}_{len(active_armature.data.bones)}"
                     
                     if stats_cache_key not in _stats_cache:
                         _stats_cache[stats_cache_key] = get_armature_stats(active_armature)
                     
                     stats = _stats_cache[stats_cache_key]
+                    
+                    status_box = results_box.box()
+                    row = status_box.row()
+                    row.label(text=t("QuickAccess.valid_armature"), icon='CHECKMARK')
+                    split = row.split(factor=0.4)
                     split.label(text=t("QuickAccess.bones_count", count=stats['bone_count']))
                     
                     if stats['has_pose']:
-                    info_box.label(text=t("QuickAccess.pose_bones_available"), icon='POSE_HLT')
-            elif is_valid and is_acceptable:
-                # Show acceptable standard message
-                if messages and len(messages) > 0:
-                    info_box.label(text=messages[0], icon='INFO')
+                        results_box.label(text=t("QuickAccess.pose_bones_available"), icon='POSE_HLT')
                 
-                    # Only try to access additional messages if they exist
-                    if len(messages) > 1:
-                        info_box.label(text=messages[1])
-                    if len(messages) > 2:
-                        info_box.label(text=messages[2])
-                else:
-                    info_box.label(text=t("Validation.no_messages"), icon='INFO')
+                elif is_valid and is_acceptable:
+                    # Acceptable standard
+                    status_box = results_box.box()
+                    status_box.label(text=t("Armature.validation.acceptable_standard.success"), icon='INFO')
+                    status_box.label(text=t("Armature.validation.acceptable_standard.note"))
+                    status_box.label(text=t("Armature.validation.acceptable_standard.option"))
                     
                     # Add standardize button
-                standardize_box = info_box.box()
+                    standardize_box = results_box.box()
                     standardize_box.operator(AvatarToolkit_OT_StandardizeArmature.bl_idname, 
                                         text=t("QuickAccess.standardize_armature"),
                                         icon='MODIFIER')
 
-            # Validation Mode Warnings
-            validation_mode = context.scene.avatar_toolkit.validation_mode
-            if validation_mode == 'BASIC':
-                warning_row = info_box.box()
-                warning_row.alert = True
-                warning_row.label(text=t("QuickAccess.validation_basic_warning"), icon='INFO')
-                warning_row.label(text=t("QuickAccess.validation_basic_details"))
-            elif validation_mode == 'NONE':
-                warning_row = info_box.box()
-                warning_row.alert = True
-                warning_row.label(text=t("QuickAccess.validation_none_warning"), icon='ERROR')
-                warning_row.label(text=t("QuickAccess.validation_none_details"))
+            # T-Pose Validation
+            col = draw_section_header(layout, t("Validation.tpose.label"), icon='ARMATURE_DATA')
+            col.operator(AvatarToolkit_OT_ValidateTPose.bl_idname, text=t("Validation.tpose.validate_now"), icon='CHECKMARK')
+
+            if props.show_tpose_validation:
+                validation_result_col = col.column(align=True)
+                if props.tpose_validation_result:
+                    validation_result_col.label(text=t("Validation.tpose.valid"), icon='CHECKMARK')
+                else:
+                    validation_result_col.alert = True
+                    validation_result_col.label(text=t("Validation.tpose.warning"), icon='ERROR')
+                    
+                    for msg in props.tpose_validation_messages:
+                        validation_result_col.label(text=msg.name)
 
             # Pose Mode Controls
-            pose_box: UILayout = layout.box()
-            col = pose_box.column(align=True)
-            col.label(text=t("QuickAccess.pose_controls"), icon='ARMATURE_DATA')
-            col.separator(factor=0.5)
+            col = draw_section_header(layout, t("QuickAccess.pose_controls"), icon='ARMATURE_DATA')
             
             if context.mode == "POSE":
                 col.operator(AvatarToolkit_OT_StopPoseMode.bl_idname, icon='POSE_HLT')
-                col.separator(factor=0.5)
-                col.operator(AvatarToolkit_OT_ApplyPoseAsRest.bl_idname, icon='MOD_ARMATURE')
-                col.operator(AvatarToolkit_OT_ApplyPoseAsShapekey.bl_idname, icon='MOD_ARMATURE')
+                col.separator(factor=UIStyle.SUBSECTION_SEPARATOR_FACTOR)
+                draw_operator_row(col, [
+                    (AvatarToolkit_OT_ApplyPoseAsRest.bl_idname, t("QuickAccess.apply_pose_as_rest.label"), 'MOD_ARMATURE'),
+                    (AvatarToolkit_OT_ApplyPoseAsShapekey.bl_idname, t("QuickAccess.apply_pose_as_shapekey.label"), 'MOD_ARMATURE')
+                ])
             else:
                 col.operator(AvatarToolkit_OT_StartPoseMode.bl_idname, icon='POSE_HLT')
 
-        # Import/Export Box
-        import_box: UILayout = layout.box()
-        col = import_box.column(align=True)
-        col.label(text=t("QuickAccess.import_export"), icon='IMPORT')
-        col.separator(factor=0.5)
+        # Import/Export Section
+        col = draw_section_header(layout, t("QuickAccess.import_export"), icon='IMPORT')
         
         # Import/Export Buttons
-        button_row: UILayout = col.row(align=True)
-        button_row.scale_y = 1.5
-        button_row.operator(AvatarToolKit_OT_Import.bl_idname, text=t("QuickAccess.import"), icon='IMPORT')
-        button_row.operator(AvatarToolKit_OT_ExportMenu.bl_idname, text=t("QuickAccess.export"), icon='EXPORT')
+        draw_operator_row(col, [
+            (AvatarToolKit_OT_Import.bl_idname, t("QuickAccess.import"), 'IMPORT'),
+            (AvatarToolKit_OT_ExportMenu.bl_idname, t("QuickAccess.export"), 'EXPORT')
+        ], scale_y=UIStyle.PRIMARY_BUTTON_SCALE)
 

ui/search_operators.py

@@ -0,0 +1,121 @@
+"""Base classes for reusable search operators"""
+
+from typing import Set, Callable, Optional
+from bpy.types import Operator, Context, Event, WindowManager
+
+
+class SearchOperatorBase(Operator):
+    """
+    Reusable base class for search/selection operators.
+    
+    This is an abstract base class - do not use directly.
+    Subclass and implement your specific search operator instead.
+    
+    Subclasses should:
+    1. Define bl_idname, bl_label, bl_description
+    2. Define search_property_name (name of EnumProperty)
+    3. Define target_property_name (name of property to set on scene)
+    4. Define get_items_func (function to get enum items)
+    5. Optionally override get_enum_property() to customize the enum
+
+    This was created because search in ATK was all over the place and inconsistent, this way we have a standard way to do it.
+    """
+    
+    # Mark this as abstract by setting a non-Blender-compatible idname
+    bl_idname = "wm.search_operator_base"  # Will be overridden in subclasses
+    bl_label = "Search and Select"
+    bl_options = {'REGISTER', 'INTERNAL'}
+    
+    # These should be overridden in subclasses
+    search_property_name: str = "search_enum"
+    target_property_name: str = "target_property"
+    
+    @staticmethod
+    def get_items_func(scene, context) -> list:
+        """Override this to provide enum items. Return list of (id, name, description) tuples"""
+        return []
+    
+    def get_enum_property(self) -> None:
+        """
+        Create the enum property dynamically. Override if you need custom behavior.
+        This is called during class creation.
+        """
+        import bpy
+        setattr(
+            type(self),
+            self.search_property_name,
+            bpy.props.EnumProperty(
+                name="Search",
+                description="Select item",
+                items=self.get_items_func
+            )
+        )
+    
+    def execute(self, context: Context) -> Set[str]:
+        """Set the target property from the search selection"""
+        search_value = getattr(self, self.search_property_name, None)
+        if search_value:
+            setattr(context.scene.avatar_toolkit, self.target_property_name, search_value)
+        return {'FINISHED'}
+    
+    def invoke(self, context: Context, event: Event) -> Set[str]:
+        """Open search popup"""
+        wm: WindowManager = context.window_manager
+        wm.invoke_search_popup(self)
+        return {'FINISHED'}
+
+
+class ArmatureSearchOperator(SearchOperatorBase):
+    """Specialized search operator for selecting armatures"""
+    
+    bl_label = "Search Armatures"
+    search_property_name: str = "search_armature_enum"
+    
+    @staticmethod
+    def get_items_func(scene, context) -> list:
+        """Get list of all armature objects in scene"""
+        import bpy
+        return [
+            (obj.name, obj.name, "")
+            for obj in bpy.data.objects
+            if obj.type == 'ARMATURE'
+        ]
+
+
+class MeshSearchOperator(SearchOperatorBase):
+    """Specialized search operator for selecting meshes"""
+    
+    bl_label = "Search Meshes"
+    search_property_name: str = "search_mesh_enum"
+    
+    @staticmethod
+    def get_items_func(scene, context) -> list:
+        """Get list of all mesh objects without armature modifiers"""
+        import bpy
+        return [
+            (obj.name, obj.name, "")
+            for obj in bpy.data.objects
+            if obj.type == 'MESH'
+            and not any(mod.type == 'ARMATURE' for mod in obj.modifiers)
+        ]
+
+
+class BoneSearchOperator(SearchOperatorBase):
+    """Specialized search operator for selecting bones from active armature"""
+    
+    bl_label = "Search Bones"
+    search_property_name: str = "search_bone_enum"
+    
+    @staticmethod
+    def get_items_func(scene, context) -> list:
+        """Get list of all bones from active armature"""
+        from ..core.common import get_active_armature
+        
+        armature = get_active_armature(context)
+        if not armature:
+            return []
+        
+        return [
+            (bone.name, bone.name, "")
+            for bone in armature.data.bones
+        ]

ui/settings_panel.py

@@ -9,6 +9,8 @@ from bpy.types import (
     Event
 )
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .ui_utils import UIStyle, draw_section_header, wrap_text_label
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.translations import t, get_languages_list
 from ..core.armature_validation import AvatarToolkit_OT_HighlightProblemBones, AvatarToolkit_OT_ClearBoneHighlighting
 
@@ -26,8 +28,10 @@ class AvatarToolkit_OT_TranslationRestartPopup(Operator):
     
     def draw(self, context: Context) -> None:
         layout: UILayout = self.layout
-        layout.label(text=t("Language.changed.success"))
-        layout.label(text=t("Language.changed.restart"))
+        col = layout.column(align=True)
+        col.label(text=t("Language.changed.success"))
+        col.separator(factor=UIStyle.SUBSECTION_SEPARATOR_FACTOR)
+        wrap_text_label(col, t("Language.changed.restart"), max_length=50)
 
 class AvatarToolKit_PT_SettingsPanel(Panel):
     """Settings panel for Avatar Toolkit containing language preferences"""
@@ -37,8 +41,8 @@ class AvatarToolKit_PT_SettingsPanel(Panel):
     bl_region_type: str = 'UI'
     bl_category: str = CATEGORY_NAME
     bl_parent_id: str = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order: int = 8
-    bl_options = {'DEFAULT_CLOSED'}
+    bl_order: int = get_panel_order('settings')
+    bl_options = set() if not should_open_by_default('SETTINGS') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context) -> None:
         """Draw the settings panel layout with language selection"""
@@ -46,30 +50,18 @@ class AvatarToolKit_PT_SettingsPanel(Panel):
         props = context.scene.avatar_toolkit
         
         # Language Settings
-        lang_box: UILayout = layout.box()
-        col: UILayout = lang_box.column(align=True)
-        row: UILayout = col.row()
-        row.scale_y = 1.2
-        row.label(text=t("Settings.language"), icon='WORLD')
-        col.separator()
+        col = draw_section_header(layout, t("Settings.language"), icon='WORLD')
         col.prop(props, "language", text="")
         
-        # Validation Settings
-        val_box: UILayout = layout.box()
-        col = val_box.column(align=True)
-        row = col.row()
-        row.scale_y = 1.2
-        row.label(text=t("Settings.validation_mode"), icon='CHECKMARK')
-        col.separator()
+        # Validation Settings with help text
+        col = draw_section_header(layout, t("Settings.validation_mode"), icon='CHECKMARK')
         col.prop(props, "validation_mode", text="")
+        # Help text for validation mode
+        col.separator(factor=UIStyle.SUBSECTION_SEPARATOR_FACTOR)
+        wrap_text_label(col, "Select how strictly to validate armature bone structure and naming conventions.", max_length=40)
         
         # Bone Highlighting Settings
-        bone_box: UILayout = layout.box()
-        col = bone_box.column(align=True)
-        row = col.row()
-        row.scale_y = 1.2
-        row.label(text=t("Settings.bone_highlighting"), icon='BONE_DATA')
-        col.separator()
+        col = draw_section_header(layout, t("Settings.bone_highlighting"), icon='BONE_DATA')
         col.prop(props, "highlight_problem_bones")
         if props.highlight_problem_bones:
             col.operator(AvatarToolkit_OT_HighlightProblemBones.bl_idname, icon='COLOR')

ui/tools_panel.py

@@ -2,6 +2,8 @@ import bpy
 from typing import Set
 from bpy.types import Panel, Context, UILayout, Operator, UIList
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .ui_utils import UIStyle, draw_section_header, draw_operator_row
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.translations import t
 
 from ..core.resonite_utils import AvatarToolkit_OT_ConvertResonite
@@ -29,8 +31,8 @@ class AvatarToolKit_PT_ToolsPanel(Panel):
     bl_region_type: str = 'UI'
     bl_category: str = CATEGORY_NAME
     bl_parent_id: str = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order: int = 2
-    bl_options = {'DEFAULT_CLOSED'}
+    bl_order: int = get_panel_order('tools')
+    bl_options = set() if not should_open_by_default('TOOLS') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context) -> None:
         """Draw the tools panel interface"""
@@ -38,94 +40,70 @@ class AvatarToolKit_PT_ToolsPanel(Panel):
         toolkit = context.scene.avatar_toolkit
         
         # General Tools
-        tools_box: UILayout = layout.box()
-        col: UILayout = tools_box.column(align=True)
-        col.label(text=t("Tools.general_title"), icon='TOOL_SETTINGS')
-        col.separator(factor=0.5)
+        col = draw_section_header(layout, t("Tools.general_title"), icon='TOOL_SETTINGS')
         col.operator(AvatarToolkit_OT_ConvertResonite.bl_idname, text=t("Tools.convert_resonite"), icon='EXPORT')
         
         # Separation Tools
-        sep_box: UILayout = layout.box()
-        col = sep_box.column(align=True)
-        col.label(text=t("Tools.separate_title"), icon='MOD_EXPLODE')
-        col.separator(factor=0.5)
-        row: UILayout = col.row(align=True)
-        row.operator(AvatarToolKit_OT_SeparateByMaterials.bl_idname, text=t("Tools.separate_materials"), icon='MATERIAL')
-        row.operator(AvatarToolKit_OT_SeparateByLooseParts.bl_idname, text=t("Tools.separate_loose"), icon='MESH_DATA')
+        col = draw_section_header(layout, t("Tools.separate_title"), icon='MOD_EXPLODE')
+        draw_operator_row(col, [
+            (AvatarToolKit_OT_SeparateByMaterials.bl_idname, t("Tools.separate_materials"), 'MATERIAL'),
+            (AvatarToolKit_OT_SeparateByLooseParts.bl_idname, t("Tools.separate_loose"), 'MESH_DATA')
+        ])
         
         # Bone Tools
-        bone_box: UILayout = layout.box()
-        col = bone_box.column(align=True)
-        col.label(text=t("Tools.bone_title"), icon='BONE_DATA')
-        col.separator(factor=0.5)
+        col = draw_section_header(layout, t("Tools.bone_title"), icon='BONE_DATA')
         col.operator(AvatarToolKit_OT_CreateDigitigradeLegs.bl_idname, text=t("Tools.create_digitigrade"), icon='BONE_DATA')
-        col.operator(AvatarToolKit_OT_FlipCurrentKeyFrames.bl_idname,text=t("Tools.flip_pose_frames"),icon="ACTION")
+        col.operator(AvatarToolKit_OT_FlipCurrentKeyFrames.bl_idname, text=t("Tools.flip_pose_frames"), icon="ACTION")
 
         # Mesh Tools
-        mesh_box: UILayout = layout.box()
-        col = mesh_box.column(align=True)
-        col.label(text=t("Tools.mesh_title"), icon='MESH_DATA')
-        col.separator(factor=0.5)
-        col.operator(AvatarToolkit_OT_SelectShortestSeamPath.bl_idname,text=t("Tools.find_shortest_seam_path"),icon="MESH_DATA")
-        col.operator(AvatarToolkit_OT_ApplyModifierForShapkeyObj.bl_idname,text=t("Tools.apply_modifier_on_shapekey_obj"),icon="SHAPEKEY_DATA")
-        col.operator(AvatarToolkit_OT_ExplodeMesh.bl_idname,text=t("Tools.explode_mesh"),icon="MOD_EXPLODE")
-        
+        col = draw_section_header(layout, t("Tools.mesh_title"), icon='MESH_DATA')
+        col.operator(AvatarToolkit_OT_SelectShortestSeamPath.bl_idname, text=t("Tools.find_shortest_seam_path"), icon="MESH_DATA")
+        col.operator(AvatarToolkit_OT_ApplyModifierForShapkeyObj.bl_idname, text=t("Tools.apply_modifier_on_shapekey_obj"), icon="SHAPEKEY_DATA")
+        col.operator(AvatarToolkit_OT_ExplodeMesh.bl_idname, text=t("Tools.explode_mesh"), icon="MOD_EXPLODE")
         
         # Standardization Tools
-        standardize_box: UILayout = bone_box.box()
-        col = standardize_box.column(align=True)
-        col.label(text=t("Tools.standardize_title"), icon='OUTLINER_OB_ARMATURE')
-        col.separator(factor=0.5)
+        col = draw_section_header(layout, t("Tools.standardize_title"), icon='OUTLINER_OB_ARMATURE')
         col.operator(AvatarToolkit_OT_StandardizeArmature.bl_idname, icon='CHECKMARK')
 
         # Weight Tools
-        weight_box: UILayout = bone_box.box()
-        col = weight_box.column(align=True)
+        col = draw_section_header(layout, t("Tools.weight_title"), icon='GROUP_BONE')
         col.prop(toolkit, "merge_twist_bones", text=t("Tools.merge_twist_bones"))
         col.prop(toolkit, "preserve_parent_bones")
         col.prop(toolkit, "target_bone_type")
         col.prop(toolkit, "list_only_mode")
         
         if toolkit.list_only_mode and len(toolkit.zero_weight_bones) > 0:
-            box = weight_box.box()
-            row = box.row()
+            sub_col = col.box()
+            row = sub_col.row()
             row.template_list("AVATAR_TOOLKIT_UL_ZeroWeightBones", "", 
                             toolkit, "zero_weight_bones",
                             toolkit, "zero_weight_bones_index")
             
-            col = box.column(align=True)
-            col.operator(AvatarToolKit_OT_RemoveSelectedBones.bl_idname, 
+            sub_col.operator(AvatarToolKit_OT_RemoveSelectedBones.bl_idname, 
                            text=t("Tools.remove_selected_bones"))
         
-        row = col.row(align=True)
-        row.operator(AvatarToolKit_OT_RemoveZeroWeightBones.bl_idname, text=t("Tools.clean_weights"), icon='GROUP_BONE')
-        row.operator(AvatarToolKit_OT_DeleteBoneConstraints.bl_idname, text=t("Tools.clean_constraints"), icon='CONSTRAINT_BONE')
-        row = col.row(align=True)
-        row.operator(AvatarToolKit_OT_RemoveZeroWeightVertexGroups.bl_idname, text=t("Tools.clean_vertex_groups"), icon='CONSTRAINT_BONE')
+        # Combine weight
+        draw_operator_row(col, [
+            (AvatarToolKit_OT_RemoveZeroWeightBones.bl_idname, t("Tools.clean_weights"), 'GROUP_BONE'),
+            (AvatarToolKit_OT_DeleteBoneConstraints.bl_idname, t("Tools.clean_constraints"), 'CONSTRAINT_BONE')
+        ])
+        col.operator(AvatarToolKit_OT_RemoveZeroWeightVertexGroups.bl_idname, text=t("Tools.clean_vertex_groups"), icon='CONSTRAINT_BONE')
         
         # Merge Tools
-        merge_box: UILayout = layout.box()
-        col = merge_box.column(align=True)
-        col.label(text=t("Tools.merge_title"), icon='AUTOMERGE_ON')
-        col.separator(factor=0.5)
-        row = col.row(align=True)
-        row.operator(AvatarToolkit_OT_MergeToActive.bl_idname, text=t("Tools.merge_to_active"), icon='BONE_DATA')
-        row.operator(AvatarToolkit_OT_MergeToParent.bl_idname, text=t("Tools.merge_to_parent"), icon='BONE_DATA')
+        col = draw_section_header(layout, t("Tools.merge_title"), icon='AUTOMERGE_ON')
+        draw_operator_row(col, [
+            (AvatarToolkit_OT_MergeToActive.bl_idname, t("Tools.merge_to_active"), 'BONE_DATA'),
+            (AvatarToolkit_OT_MergeToParent.bl_idname, t("Tools.merge_to_parent"), 'BONE_DATA')
+        ])
         col.operator(AvatarToolkit_OT_ConnectBones.bl_idname, text=t("Tools.connect_bones"), icon='BONE_DATA')
         
         # Additional Tools
-        extra_box: UILayout = layout.box()
-        col = extra_box.column(align=True)
-        col.label(text=t("Tools.additional_title"), icon='TOOL_SETTINGS')
-        col.separator(factor=0.5)
+        col = draw_section_header(layout, t("Tools.additional_title"), icon='TOOL_SETTINGS')
         col.operator(AvatarToolkit_OT_ApplyTransforms.bl_idname, text=t("Tools.apply_transforms"), icon='OBJECT_DATA')
         col.operator(AvatarToolkit_OT_CleanShapekeys.bl_idname, text=t("Tools.clean_shapekeys"), icon='SHAPEKEY_DATA')
 
         # Rigify Tools
-        rigify_box: UILayout = layout.box()
-        col = rigify_box.column(align=True)
-        col.label(text=t("Tools.rigify_title"), icon='ARMATURE_DATA')
-        col.separator(factor=0.5)
+        col = draw_section_header(layout, t("Tools.rigify_title"), icon='ARMATURE_DATA')
         col.operator(AvatarToolkit_OT_ConvertRigifyToUnity.bl_idname, icon='ARMATURE_DATA')
         col.prop(context.scene.avatar_toolkit, "merge_twist_bones")
 

ui/translation_panel.py

@@ -12,6 +12,7 @@ from bpy.types import (
     Object
 )
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.translations import t
 from ..core.logging_setup import logger
 from ..core.common import get_active_armature, ProgressTracker
@@ -465,8 +466,8 @@ class AvatarToolKit_PT_TranslationPanel(Panel):
     bl_region_type: str = 'UI'
     bl_category: str = CATEGORY_NAME
     bl_parent_id: str = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order: int = 9
-    bl_options = {'DEFAULT_CLOSED'}
+    bl_order: int = get_panel_order('translation')
+    bl_options = set() if not should_open_by_default('TRANSLATION') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context) -> None:
         """Draw the translation panel layout"""

ui/ui_utils.py

@@ -0,0 +1,137 @@
+"""UI utilities and styling helpers for consistent Avatar Toolkit panel design"""
+
+from typing import Callable, Optional
+from bpy.types import UILayout, Context, Operator
+
+
+class UIStyle:
+    """Centralized UI styling constants for consistent appearance"""
+    
+    SECTION_SEPARATOR_FACTOR: float = 0.5
+    SUBSECTION_SEPARATOR_FACTOR: float = 0.3
+    PRIMARY_BUTTON_SCALE: float = 1.5
+    STANDARD_BUTTON_SCALE: float = 1.0
+    COMPACT_BUTTON_SCALE: float = 0.9
+    DEFAULT_PADDING: float = 1.0
+    COMPACT_PADDING: float = 0.5
+    
+    CATEGORY_ICONS = {
+        'optimization': 'MOD_SMOOTH',
+        'tools': 'TOOL_SETTINGS',
+        'custom': 'TOOL_OPTIONS',
+        'eye_tracking': 'OBJECT_CAMERA',
+        'settings': 'PREFERENCES',
+        'import_export': 'EXPORT',
+        'pose': 'POSE_HLT',
+        'materials': 'MATERIAL',
+        'mesh': 'MESH_DATA',
+        'bones': 'BONE_DATA',
+        'vfx': 'MOD_DISPLACE'
+    }
+
+
+def draw_section_header(layout: UILayout, title: str, icon: str = 'NONE', separator: bool = True) -> UILayout:
+    """Draw a consistent section header with optional icon and separator"""
+    header_box = layout.box()
+    col = header_box.column(align=True)
+    row = col.row()
+    row.scale_y = 1.2
+    row.label(text=title, icon=icon)
+    
+    if separator:
+        col.separator(factor=UIStyle.SECTION_SEPARATOR_FACTOR)
+    
+    return col
+
+
+def draw_subsection(layout: UILayout, title: str, icon: str = 'NONE') -> UILayout:
+    """Draw a subsection with reduced visual weight (no box)"""
+    col = layout.column(align=True)
+    row = col.row()
+    row.label(text=title, icon=icon)
+    col.separator(factor=UIStyle.SUBSECTION_SEPARATOR_FACTOR)
+    return col
+
+
+def draw_info_text(layout: UILayout, text: str, icon: str = 'INFO') -> None:
+    """Draw informational text that can wrap (replaces multiple labels)"""
+    col = layout.column()
+    col.alert = False
+    # Split long text for wrapping
+    row = col.row()
+    row.label(text=text, icon=icon)
+
+
+def draw_warning_text(layout: UILayout, text: str) -> None:
+    """Draw warning-styled text"""
+    col = layout.column()
+    col.alert = True
+    row = col.row()
+    row.label(text=text, icon='ERROR')
+
+
+def draw_primary_button(layout: UILayout, operator_idname: str, text: str = "", 
+                       icon: str = 'NONE', **kwargs) -> None:
+    """Draw a primary action button with standard scaling"""
+    row = layout.row(align=True)
+    row.scale_y = UIStyle.PRIMARY_BUTTON_SCALE
+    row.operator(operator_idname, text=text, icon=icon, **kwargs)
+
+
+def draw_operator_row(layout: UILayout, operators: list[tuple[str, str, str]],
+                     scale_y: float = 1.0, equal_width: bool = True) -> None:
+    """Draw multiple operators in a single row with consistent sizing"""
+    if not operators:
+        return
+    
+    row = layout.row(align=equal_width)
+    row.scale_y = scale_y
+    
+    for op_id, text, icon in operators:
+        row.operator(op_id, text=text, icon=icon)
+
+
+def draw_collapsible_section(layout: UILayout, title: str, icon: str, 
+                            draw_func: Callable[[UILayout], None],
+                            context: Context, storage_attr: str) -> None:
+    """Draw a collapsible section (using context scene properties for state)"""
+    col = layout.column(align=True)
+    row = col.row()
+    
+    scene = context.scene
+    attr_name = f"_ui_expand_{storage_attr}"
+    is_expanded = getattr(scene, attr_name, False)
+    icon_name = 'DISCLOSURE_TRI_DOWN' if is_expanded else 'DISCLOSURE_TRI_RIGHT'
+    row.prop(scene, attr_name, text="", icon=icon_name, emboss=False)
+    row.label(text=title, icon=icon)
+    
+    if is_expanded:
+        col.separator(factor=UIStyle.SUBSECTION_SEPARATOR_FACTOR)
+        draw_func(col)
+
+
+def apply_operator_disable_feedback(operator: Operator, layout: UILayout, 
+                                   is_disabled: bool, reason: str = "") -> UILayout:
+    """Prepare layout for disabled operator with visual feedback"""
+    if is_disabled:
+        layout.enabled = False
+    return layout
+
+
+def wrap_text_label(layout: UILayout, text: str, max_length: int = 50) -> None:
+    """Draw a label that wraps long text across multiple lines"""
+    words = text.split()
+    current_line = ""
+    
+    col = layout.column()
+    
+    for word in words:
+        test_line = (current_line + " " + word).strip()
+        if len(test_line) > max_length and current_line:
+            col.label(text=current_line)
+            current_line = word
+        else:
+            current_line = test_line
+    
+    if current_line:
+        col.label(text=current_line)

ui/visemes_panel.py

@@ -2,6 +2,7 @@ import bpy
 from bpy.types import Panel, Context, UILayout, Object, ShapeKey
 from ..core.translations import t
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.common import get_active_armature
 from ..functions.visemes import AvatarToolkit_OT_PreviewVisemes, AvatarToolkit_OT_CreateVisemes
 
@@ -13,8 +14,8 @@ class AvatarToolKit_PT_VisemesPanel(Panel):
     bl_region_type: str = 'UI'
     bl_category: str = CATEGORY_NAME
     bl_parent_id: str = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order: int = 5
-    bl_options: set[str] = {'DEFAULT_CLOSED'}
+    bl_order: int = get_panel_order('visemes')
+    bl_options: set[str] = set() if not should_open_by_default('VISEMES') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context) -> None:
         """Draw the visemes panel interface with shape key selection and preview controls"""
@@ -33,8 +34,9 @@ class AvatarToolKit_PT_VisemesPanel(Panel):
         else:
             col.label(text=t("Visemes.no_armature"), icon='ERROR')
 
-        # Get selected mesh
-        mesh_obj = bpy.data.objects.get(props.viseme_mesh)
+        # Get selected mesh using safe identifier
+        from ..core.common import get_mesh_from_identifier
+        mesh_obj = get_mesh_from_identifier(props.viseme_mesh)
         if not mesh_obj or not mesh_obj.data or not mesh_obj.data.shape_keys:
             layout.label(text=t("Visemes.no_shapekeys"))
             return

ui/vrm_unity_panel.py

@@ -1,6 +1,7 @@
 import bpy
 from bpy.types import Panel, Context, UILayout
 from .main_panel import AvatarToolKit_PT_AvatarToolkitPanel, CATEGORY_NAME
+from .panel_layout import get_panel_order, should_open_by_default
 from ..core.translations import t
 from ..core.common import get_active_armature
 from ..core.vrm_unity_converter import detect_vrm_armature
@@ -15,8 +16,8 @@ class AvatarToolKit_PT_VRMUnityPanel(Panel):
     bl_region_type = 'UI'
     bl_category = CATEGORY_NAME
     bl_parent_id = AvatarToolKit_PT_AvatarToolkitPanel.bl_idname
-    bl_order = 3
-    bl_options = {'DEFAULT_CLOSED'}
+    bl_order = get_panel_order('vrm_unity')
+    bl_options = set() if not should_open_by_default('VRM_UNITY') else {'DEFAULT_CLOSED'}
 
     def draw(self, context: Context) -> None:
         """Draw the VRM to Unity conversion panel interface"""