989onan
65 lines
2.7 KiB
Python
65 lines
2.7 KiB
Python
import bpy
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from ..core import common
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from bpy.types import Operator, Context, Mesh, Armature, EditBone, PoseBone
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from ..core.register import register_wrap
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from .translations import t
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@register_wrap
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class AvatarToolkit_RemoveZeroWeightBones(Operator):
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bl_idname = "avatar_toolkit.remove_zero_weight_bones"
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bl_label = t("Tools.remove_zero_weight_bones.label")
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bl_description = t("Tools.remove_zero_weight_bones.desc")
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bl_options = {'REGISTER', 'UNDO'}
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threshold: bpy.props.FloatProperty(
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default=0.01,
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name=t("Tools.remove_zero_weight_bones.threshold.label"),
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description=t("Tools.remove_zero_weight_bones.threshold.desc"),
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min=0.0000001,
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max=0.9999999)
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@classmethod
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def poll(cls, context: Context) -> bool:
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return common.get_selected_armature(context) is not None
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def execute(self, context: Context) -> set[str]:
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armature = common.get_selected_armature(context)
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if not common.is_valid_armature(armature):
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self.report({'ERROR'}, t("Tools.apply_transforms.invalid_armature"))
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return {'CANCELLED'}
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weighted_bones: list[str] = []
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bpy.ops.object.mode_set(mode='OBJECT')
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bpy.ops.object.select_all(action='DESELECT')
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armature.select_set(True)
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context.view_layer.objects.active = armature
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meshes = common.get_all_meshes(context)
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for mesh in meshes:
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mesh_data: Mesh = mesh.data
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for vertex in mesh_data.vertices:
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for group in vertex.groups:
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if group.weight > self.threshold:
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weighted_bones.append(mesh.vertex_groups[group.group].name) #add bone name to list of bones that are greater than the weight threshold
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bpy.ops.object.mode_set(mode='EDIT')
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amature_data: Armature = armature.data
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unweighted_bones: list[str] = []
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#doing 2 loops to prevent modification of array during iteration
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for bone in amature_data.edit_bones:
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if bone.name not in weighted_bones:
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unweighted_bones.append(bone.name) #add bones that arent in the list of bones that have weight into the list of bones that don't
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for bone_name in unweighted_bones:
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for edit_bone in amature_data.edit_bones[bone_name].children:
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edit_bone.use_connect = False #to fix randomly moving bones
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edit_bone.parent = amature_data.edit_bones[bone_name].parent #to fix unparented bones.
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amature_data.edit_bones.remove(amature_data.edit_bones[bone_name]) #delete list of unweighted bones from the armature
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self.report({'INFO'}, t("Tools.remove_zero_weight_bones.success"))
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return {'FINISHED'}
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