scripts-blender/addons/asset_pipeline_2/core.py

@@ -9,9 +9,26 @@ from .asset_mapping import AssetTransferMapping
 from . import constants
 
 
+def remove_old_ownership(obj, task_layer_name):
+    ownership = obj.transfer_data_ownership
+    to_remove = []
+    for item in ownership:
+        if constants.TASK_LAYER_KEYS[item["owner"]] == task_layer_name:
+            if not (
+                transfer_functions.verify_vertex_group(item)
+                or transfer_functions.verify_modifiers(item)
+                or transfer_functions.verify_modifiers(item)
+            ):
+                to_remove.append(item.name)
+
+    for name in to_remove:
+        ownership.remove(ownership.keys().index(name))
+
+
 def get_ownership(local_col: str, task_layer_name: str):
     new_transfer_data: Dict[bpy.props.CollectionProperty, str, str, str, str] = {}
     for obj in local_col.all_objects:
+        remove_old_ownership(obj, task_layer_name)
         transfer_functions.get_vertex_groups(obj, task_layer_name, new_transfer_data)
         transfer_functions.get_material_slots(obj, task_layer_name, new_transfer_data)
         transfer_functions.get_modifiers(obj, task_layer_name, new_transfer_data)

scripts-blender/addons/asset_pipeline_2/transfer_data/transfer_functions.py

@@ -8,6 +8,12 @@ from .. import asset_suffix, constants
 
 
 # VERTEX GROUPS
+def verify_vertex_group(item):
+    obj = item.id_data
+    if item.type == constants.VERTEX_GROUP_KEY and obj.vertex_groups.get(item["name"]):
+        return True
+
+
 def get_vertex_groups(obj, task_layer_name, new_transfer_data):
     ownership = obj.transfer_data_ownership
     for vertex_group in obj.vertex_groups:
@@ -55,6 +61,12 @@ def transfer_vertex_group(
 
 
 # MODIFIERS
+def verify_modifiers(item):
+    obj = item.id_data
+    if item.type == constants.MODIFIER_KEY and obj.modifiers.get(item["name"]):
+        return True
+
+
 def get_modifiers(obj, task_layer_name, new_transfer_data):
     ownership = obj.transfer_data_ownership
     for mod in obj.modifiers:
@@ -130,6 +142,14 @@ def transfer_modifier(item, obj_target):
 
 
 # MATERIAL SLOT
+def verify_material_slot(item):
+    obj = item.id_data
+    if item.type == constants.MATERIAL_SLOT_KEY and obj.material_slots.get(
+        item["name"]
+    ):
+        return True
+
+
 def get_material_slots(obj, task_layer_name, new_transfer_data):
     ownership = obj.transfer_data_ownership
     for slot in obj.material_slots: