Rigify: Fix T80764: handling of bones with ORG prefix in raw_copy.

Originally the raw_copy rig used a standard API of rigify to rename
the bone after generate already added an ORG prefix. However, if the
bone already had that prefix, generate didn't add the second one to
avoid 'ORG-ORG', and thus raw_copy removed the only remaining prefix.

As the simplest solution, hard-code handling of this rig in generate.
This isn't that bad, because this rig is special by definition, and
the special handling consists in doing nothing.

The original API based code is kept commented out as an example.

rigify/generate.py

@@ -30,6 +30,7 @@ from .utils.widgets import WGT_PREFIX
 from .utils.widgets_special import create_root_widget
 from .utils.misc import gamma_correct, select_object
 from .utils.collections import ensure_widget_collection, list_layer_collections, filter_layer_collections_by_object
+from .utils.rig import get_rigify_type
 
 from . import base_generate
 from . import rig_ui_template
@@ -198,9 +199,12 @@ class Generator(base_generate.BaseGenerator):
 
         # Add the ORG_PREFIX to the original bones.
         for i in range(0, len(original_bones)):
-            new_name = make_original_name(original_bones[i])
-            obj.data.bones[original_bones[i]].name = new_name
-            original_bones[i] = new_name
+            bone = obj.pose.bones[original_bones[i]]
+
+            # This rig type is special in that it preserves the name of the bone.
+            if get_rigify_type(bone) != 'basic.raw_copy':
+                bone.name = make_original_name(original_bones[i])
+                original_bones[i] = bone.name
 
         self.original_bones = original_bones
 

rigify/rigs/basic/raw_copy.py

@@ -27,6 +27,8 @@ from ...base_generate import SubstitutionRig
 
 from itertools import repeat
 
+'''
+Due to T80764, bone name handling for 'limbs.raw_copy' was hard-coded in generate.py
 
 class Rig(SubstitutionRig):
     """ A raw copy rig, preserving the metarig bone as is, without the ORG prefix. """
@@ -37,7 +39,7 @@ class Rig(SubstitutionRig):
         new_name = self.generator.rename_org_bone(self.base_bone, new_name)
 
         return [ self.instantiate_rig(InstanceRig, new_name) ]
-
+'''
 
 class RelinkConstraintsMixin:
     """ Utilities for constraint relinking. """
@@ -122,7 +124,7 @@ class RelinkConstraintsMixin:
             layout.label(text="Constraint names have special meanings.", icon='ERROR')
 
 
-class InstanceRig(BaseRig, RelinkConstraintsMixin):
+class Rig(BaseRig, RelinkConstraintsMixin):
     def find_org_bones(self, pose_bone):
         return pose_bone.name
 
@@ -148,8 +150,8 @@ class InstanceRig(BaseRig, RelinkConstraintsMixin):
         self.add_relink_constraints_ui(layout, params)
 
 
-add_parameters = InstanceRig.add_parameters
-parameters_ui = InstanceRig.parameters_ui
+#add_parameters = InstanceRig.add_parameters
+#parameters_ui = InstanceRig.parameters_ui
 
 
 def create_sample(obj):