Fix apply scale 0

shape_utils.py

@@ -86,6 +86,41 @@ def custom_shape_matrix(bone):
 
     return Matrix.LocRotScale(loc, rot, scale)
 
+def apply_custom_shape_transform(bone):
+    shape = bone.custom_shape
+
+    if not shape:
+        return
+
+    if bpy.app.version_string < '3.0.0':
+        scale = bone.custom_shape_scale
+
+        if round(scale, 5) == 0:
+            return
+        
+        if not bone.use_custom_shape_bone_size:
+            scale /= bone.bone.length
+
+        mat = transform_matrix(scale=(1/scale,)*3)
+
+        shape.data.transform(mat)
+        bone.custom_shape_scale = 1
+
+    else:
+        mat = custom_shape_matrix(bone)
+
+        scale = (1, 1, 1)
+        if round(mat.to_scale().length, 5) == 0:
+            loc, rot, scale = mat.decompose()
+            mat = Matrix.LocRotScale(loc, rot, (1, 1, 1))
+            scale = bone.custom_shape_scale_xyz 
+
+        shape.data.transform(mat)
+
+        bone.custom_shape_translation = (0, 0, 0)
+        bone.custom_shape_rotation_euler = (0, 0, 0)
+        bone.custom_shape_scale_xyz = scale
+    
 def get_clean_shape(bone, shape, separate=True, rename=True, 
         col=None, match=True, prefix='', apply_transforms=True):
 
@@ -109,30 +144,8 @@ def get_clean_shape(bone, shape, separate=True, rename=True,
 
     bone.custom_shape = shape
     
-
-
     if apply_transforms:
-        if bpy.app.version_string < '3.0.0':
-            scale = bone.custom_shape_scale
-
-            if not bone.use_custom_shape_bone_size:
-                scale /= bone.bone.length
-
-            mat = transform_matrix(scale=(1/scale,)*3)
-
-            shape.data.transform(mat)
-
-            bone.custom_shape_scale = 1
-            #mirror_bone.custom_shape_scale = 
-        else:
-
-            mat = custom_shape_matrix(bone)
-            shape.data.transform(mat)
-
-            bone.custom_shape_translation = (0, 0, 0)
-            bone.custom_shape_rotation_euler = (0, 0, 0)
-            bone.custom_shape_scale_xyz = (1, 1, 1)
-        
+        apply_custom_shape_transform(bone)
         bone.use_custom_shape_bone_size = True
 
     if match: