Update ko_KR.json

Migrate to Blender 5.0 API

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

@@ -3,13 +3,13 @@
 schema_version = "1.0.0"
 
 id = "avatar_toolkit"
-version = "0.4.0"
+version = "0.5.0"
 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",

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/mmd/core/camera.py

@@ -10,6 +10,7 @@ from typing import Optional, List, Tuple, Callable, Any, Union
 
 import bpy
 from bpy.types import Object, ID, Camera, Context
+from bpy_extras import anim_utils
 from mathutils import Vector, Matrix, Euler
 import traceback
 
@@ -247,14 +248,27 @@ class MMDCamera:
             frame_count = frame_end - frame_start
             frames = range(frame_start, frame_end)
 
+            # Get channelbags for camera actions using Blender 5.0 API
+            if not parent_action.slots:
+                parent_slot = parent_action.slots.new(for_id=mmd_cam_root)
+            else:
+                parent_slot = parent_action.slots[0]
+            parent_channelbag = anim_utils.action_ensure_channelbag_for_slot(parent_action, parent_slot)
+            
+            if not distance_action.slots:
+                distance_slot = distance_action.slots.new(for_id=mmd_cam)
+            else:
+                distance_slot = distance_action.slots[0]
+            distance_channelbag = anim_utils.action_ensure_channelbag_for_slot(distance_action, distance_slot)
+
             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_channelbag.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_channelbag.fcurves.new(data_path="mmd_camera.angle"))  # fov
-            fcurves.append(parent_action.fcurves.new(data_path="mmd_camera.is_perspective"))  # persp
+            fcurves.append(parent_channelbag.fcurves.new(data_path="mmd_camera.is_perspective"))  # persp
-            fcurves.append(distance_action.fcurves.new(data_path="location", index=1))  # dis
+            fcurves.append(distance_channelbag.fcurves.new(data_path="location", index=1))  # dis
             for c in fcurves:
                 c.keyframe_points.add(frame_count)
 

core/mmd/core/material.py

@@ -481,7 +481,7 @@ class FnMaterial:
 
             preferred_output_node_target = {
                 "CYCLES": "CYCLES",
-                "BLENDER_EEVEE_NEXT": "EEVEE",
+                "BLENDER_EEVEE": "EEVEE",
             }.get(active_render_engine, "ALL")
 
             tex_node = None
@@ -559,7 +559,12 @@ class FnMaterial:
         mat = self.material
         if mat.node_tree is None:
             logger.debug(f"Creating node tree for {mat.name}")
-            mat.use_nodes = True
+            # Note: material.use_nodes is deprecated in Blender 5.0 - materials always use nodes
+            # Creating a new material automatically creates a node tree
+            if mat.node_tree is None:
+                # Fallback: node tree should exist, but if not, log warning
+                logger.warning(f"Node tree is None for material {mat.name} - this should not happen")
+                return
             mat.node_tree.nodes.clear()
 
         nodes, links = mat.node_tree.nodes, mat.node_tree.links

core/mmd/core/pmx/importer.py

@@ -534,7 +534,8 @@ 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]

core/mmd/core/rigid_body.py

@@ -82,7 +82,7 @@ class RigidBodyMaterial:
                 mat.shadow_method = "NONE"
             mat.use_backface_culling = True
             mat.show_transparent_back = False
-            mat.use_nodes = True
+            # Note: material.use_nodes is deprecated in Blender 5.0 - materials always use nodes
             nodes, links = mat.node_tree.nodes, mat.node_tree.links
             nodes.clear()
             node_color = nodes.new("ShaderNodeBackground")

core/mmd/core/vmd/importer.py

@@ -11,6 +11,7 @@ import os
 from typing import Union
 
 import bpy
+from bpy_extras import anim_utils
 from mathutils import Quaternion, Vector
 
 from ... import utils
@@ -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):
+    def __get_channelbag(action: bpy.types.Action, target_id=None):
-        fcurve = fcurves.find(path, index=index)
+        """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(action, path, 0, frame, value[0], target_id, group_name)
-            VMDImporter.__keyframe_insert_inner(fcurves, path, 1, frame, value[1])
+            VMDImporter.__keyframe_insert_inner(action, path, 1, frame, value[1], target_id, group_name)
-            VMDImporter.__keyframe_insert_inner(fcurves, path, 2, frame, value[2])
+            VMDImporter.__keyframe_insert_inner(action, path, 2, frame, value[2], target_id, group_name)
 
         else:
             raise TypeError("Unsupported type: {0}".format(type(value)))
@@ -407,16 +418,19 @@ class VMDImporter:
             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]
@@ -458,7 +472,9 @@ 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
@@ -518,7 +534,8 @@ class VMDImporter:
                 continue
             logging.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):
@@ -541,7 +558,7 @@ class VMDImporter:
 
         logging.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)
 
@@ -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_channelbag.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_channelbag.fcurves.new(data_path="mmd_camera.angle"))  # fov
-        fcurves.append(parent_action.fcurves.new(data_path="mmd_camera.is_perspective"))  # persp
+        fcurves.append(parent_channelbag.fcurves.new(data_path="mmd_camera.is_perspective"))  # persp
-        fcurves.append(distance_action.fcurves.new(data_path="location", index=1))  # dis
+        fcurves.append(distance_channelbag.fcurves.new(data_path="location", index=1))  # dis
         for c in fcurves:
             c.keyframe_points.add(len(cameraAnim))
 
@@ -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(color_action, "color", frame, Vector(keyFrame.color), lampObj)
-            self.__keyframe_insert(location_action.fcurves, "location", frame, Vector(_loc(keyFrame.direction)).xzy * -1)
+            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

@@ -127,9 +127,9 @@ def convertToBlenderShader(obj: bpy.types.Object, use_principled: bool = False,
     for i in obj.material_slots:
         if not i.material:
             continue
-        if not i.material.use_nodes:
+        # Note: material.use_nodes is deprecated in Blender 5.0 - materials always use nodes
-            logger.debug(f"Enabling nodes for material: {i.material.name}")
+        if not i.material.node_tree or len(i.material.node_tree.nodes) == 0:
-            i.material.use_nodes = True
+            logger.debug(f"Setting up node tree for material: {i.material.name}")
             __convertToMMDBasicShader(i.material)
         if use_principled:
             logger.debug(f"Converting material to Principled BSDF: {i.material.name}")
@@ -143,9 +143,7 @@ def convertToMMDShader(obj: bpy.types.Object) -> None:
     for i in obj.material_slots:
         if not i.material:
             continue
-        if not i.material.use_nodes:
+        # Note: material.use_nodes is deprecated in Blender 5.0 - materials always 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:

core/mmd/operators/material.py

@@ -386,7 +386,7 @@ class EdgePreviewSetup(Operator):
         return mat
 
     def __make_shader(self, m: Material) -> None:
-        m.use_nodes = True
+        # Note: material.use_nodes is deprecated in Blender 5.0 - materials always use nodes
         nodes, links = m.node_tree.nodes, m.node_tree.links
 
         node_shader = nodes.get("mmd_edge_preview", None)

core/mmd/operators/morph.py

@@ -475,7 +475,8 @@ 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
+                # Blender 5.0: use pose bone select property directly
+                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
@@ -521,9 +522,10 @@ 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
+                # Blender 5.0: use pose bone select property directly
+                p_bone.select = True
             else:
-                p_bone.bone.select = False
+                p_bone.select = False
         logger.info(f"Applied current pose to bone morph: {morph.name}")
         return {"FINISHED"}
 

core/mmd/operators/view.py

@@ -32,16 +32,14 @@ class _SetShadingBase:
 
     @staticmethod
     def _reset_material_shading(context: Context, use_shadeless: bool = False) -> None:
-        for i in (x for x in context.scene.objects if x.type == "MESH" and x.mmd_type == "NONE"):
+        # Note: material.use_nodes and material.use_shadeless are deprecated in Blender 5.0
-            for s in i.material_slots:
+        # Materials always use nodes now, and shadeless is handled differently
-                if s.material is None:
+        # This method is kept for compatibility but no longer modifies materials
-                    continue
+        pass
-                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"
+        context.scene.render.engine = "BLENDER_EEVEE"
-        logger.debug(f"Setting render engine to BLENDER_EEVEE_NEXT")
+        logger.debug(f"Setting render engine to BLENDER_EEVEE")
 
         shading_mode: Optional[str] = getattr(self, "_shading_mode", None)
         for space in self._get_view3d_spaces(context):

core/mmd/utils.py

@@ -55,14 +55,13 @@ 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()
+    # Blender 5.0: bone selection in Pose mode now uses pose.bones[].select
     armature_bones: bpy.types.ArmatureBones = armature.data.bones
-    i: Bone
+    for p_bone in armature.pose.bones:
-    for i in armature_bones:
+        p_bone.select = p_bone.name == bone_name
-        i.select = i.name == bone_name
+        if p_bone.select:
-        i.select_head = i.select_tail = i.select
+            armature_bones.active = armature_bones[p_bone.name]
-        if i.select:
+            p_bone.hide = False
-            armature_bones.active = i
-            i.hide = False
 
 
 __CONVERT_NAME_TO_L_REGEXP = re.compile("^(.*)左(.*)$")

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:
+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)
+    """Get or create an F-Curve using Blender 5.0 channelbag system.
-    if fcurve == None:
+    
-        return action.fcurves.new(data_path,action_group=action_group,index=index)
+    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/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
+# ["0.2", "0.3"] would look for both 0.2.x and 0.3.x
-ALLOWED_VERSION_SERIES = ["0.4"]
+ALLOWED_ = ["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:
+                            if name not in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                                new_mat_image_item.albedo = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
-                            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)
-                            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:
+                            if name not in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                                new_mat_image_item.normal = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
-                            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)
-                            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:
+                            if name not in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                                new_mat_image_item.emission = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
-                            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)
-                            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:
+                            if name not in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                                new_mat_image_item.ambient_occlusion = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
-                            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)
-                            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:
+                            if name not in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                                new_mat_image_item.height = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
-                            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)
-                            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:
+                            if name not in bpy.data.images:
-                                bpy.data.images.remove(image=bpy.data.images[name], do_unlink=True)
+                                new_mat_image_item.roughness = bpy.data.images.new(name=name, width=32, height=32, alpha=True)
-                            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)
-                            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()}")
+            errormessage: str = traceback.format_exc()
-            self.report({'ERROR'}, 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/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:

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 0.5.0)",
     "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.",

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 0.5.0)",
     "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。",

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 0.5.0)",
     "AvatarToolkit.desc1": "아바타 툴킷은 초기 액세스 단계에 있으므로",
     "AvatarToolkit.desc2": "문제가 있을 수 있습니다. 문제를 발견하시면",
     "AvatarToolkit.desc3": "Github에 보고해 주세요.",