5.2.1 - Preserve Basis and pupil shape keys for eye meshes

Updated logic in model.py to always preserve the 'Basis' shape key and only keep pupil shape keys for left and right eye meshes. This prevents accidental removal of essential shape keys, ensuring proper eye mesh behavior.

Author: Melioli

.gitignore

@@ -4,3 +4,5 @@
 *.pyc
 *.txt
 hoyo2vrc_updater/Hoyo2VRC_updater_status.json
+/dist
+deploy.py

__init__.py

@@ -1,7 +1,7 @@
 bl_info = {
     "name": "Hoyo2VRC",
     "author": "Meliodas",
-    "version": (5, 2, 0),
+    "version": (5, 2, 1),
     "blender": (4, 0, 0),
     "location": "View3D > UI > Hoyo2VRC",
     "description": "Convert Hoyoverse models to VRChat",

functions/model.py

@@ -1149,11 +1149,16 @@ def separate_wuwa_eyes(context: bpy.types.Context,
                             if sk_name in left_eye.data.shape_keys.key_blocks:
                                 left_eye.data.shape_keys.key_blocks[sk_name].value = value
 
-                        # Keep only pupil shape keys
+                        # Keep Basis (essential for proper eye mesh) and pupil shape keys only
                         shape_keys_to_remove = []
                         for shape_key in left_eye.data.shape_keys.key_blocks:
-                            if shape_key.name == 'Basis' or shape_key.name in unused_shape_keys:
+                            # Always preserve Basis - without it, pupil shapes become default
+                            if shape_key.name == 'Basis':
                                 continue
+                            # Keep pupil shape keys on eye meshes
+                            if unused_shape_keys and shape_key.name in unused_shape_keys:
+                                continue
+                            # Remove all other shape keys (facial expressions, etc.)
                             shape_keys_to_remove.append(shape_key.name)
 
                         if shape_keys_to_remove:
@@ -1195,11 +1200,16 @@ def separate_wuwa_eyes(context: bpy.types.Context,
                             if sk_name in right_eye.data.shape_keys.key_blocks:
                                 right_eye.data.shape_keys.key_blocks[sk_name].value = value
 
-                        # Keep only pupil shape keys
+                        # Keep Basis (essential for proper eye mesh) and pupil shape keys only
                         shape_keys_to_remove = []
                         for shape_key in right_eye.data.shape_keys.key_blocks:
-                            if shape_key.name == 'Basis' or shape_key.name in unused_shape_keys:
+                            # Always preserve Basis - without it, pupil shapes become default
+                            if shape_key.name == 'Basis':
+                                continue
+                            # Keep pupil shape keys on eye meshes
+                            if unused_shape_keys and shape_key.name in unused_shape_keys:
                                 continue
+                            # Remove all other shape keys (facial expressions, etc.)
                             shape_keys_to_remove.append(shape_key.name)
 
                         if shape_keys_to_remove: