scripts-blender/addons/asset_pipeline/merge/asset_mapping.py

@@ -169,12 +169,11 @@ class AssetTransferMapping:
 
         return coll_map
 
-    def _get_transfer_data_dict(self, source_obj, target_obj, transfer_data_item):
+    def _get_transfer_data_dict(self, transfer_data_item):
         return {
             'name': transfer_data_item.name,
             "owner": transfer_data_item.owner,
             "surrender": transfer_data_item.surrender,
-            "target_obj": target_obj,
         }
 
     def _transfer_data_pair_not_local(self, td_1, td_2):
@@ -231,9 +230,8 @@ class AssetTransferMapping:
         if self._transfer_data_is_surrendered(transfer_data_item):
             return
         td_type_key = transfer_data_item.type
-        transfer_data_dict = self._get_transfer_data_dict(
-            source_obj, target_obj, transfer_data_item
-        )
+        transfer_data_dict = self._get_transfer_data_dict(transfer_data_item)
+
         if not source_obj in self.transfer_data_map:
             self.transfer_data_map[source_obj] = {
                 "target_obj": target_obj,

scripts-blender/addons/asset_pipeline/merge/transfer_data/transfer_core.py

@@ -14,6 +14,8 @@ from ... import constants
 from .transfer_util import (
     transfer_data_add_entry,
     check_transfer_data_entry,
+    link_objs_to_collection,
+    isolate_collection,
 )
 
 
@@ -100,12 +102,11 @@ def init_transfer_data(
 def apply_transfer_data_items(
     context,
     source_obj: bpy.types.Object,
+    target_obj: bpy.types.Object,
     td_type_key: str,
     transfer_data_dicts: List[dict],
 ):
     # Get source/target from first item in list, because all items in list are same object/type
-    target_obj = transfer_data_dicts[0]["target_obj"]
-
     if target_obj is None:
         print(f"Failed to Transfer Data for {transfer_data_dict.id_data.name}")
         return
@@ -179,7 +180,16 @@ def apply_transfer_data(context: bpy.types.Context, transfer_data_map) -> None:
         context (bpy.types.Context): context of .blend file
         transfer_data_map: Map generated by class AssetTransferMapping
     """
-
-    for source_obj in transfer_data_map:
-        for td_type_key, td_dicts in transfer_data_map[source_obj].items():
-            apply_transfer_data_items(context, source_obj, td_type_key, td_dicts)
+    # Create/isolate tmp collection to reduce depsgraph update time
+    td_col = bpy.data.collections.new("ISO_COL_TEMP")
+    with isolate_collection(td_col):
+        # Loop over objects in Transfer data map
+        for source_obj in transfer_data_map:
+            target_obj = transfer_data_map[source_obj]["target_obj"]
+            td_types = transfer_data_map[source_obj]["td_types"]
+            with link_objs_to_collection(set([target_obj, source_obj]), td_col):
+                for td_type_key, td_dicts in td_types.items():
+                    apply_transfer_data_items(
+                        context, source_obj, target_obj, td_type_key, td_dicts
+                    )
+    bpy.data.collections.remove(td_col)

scripts-blender/addons/asset_pipeline/merge/transfer_data/transfer_util.py

@@ -1,7 +1,7 @@
 import bpy
 from ..naming import merge_get_basename
 from ..task_layer import get_transfer_data_owner
-
+import contextlib
 
 def check_transfer_data_entry(
     transfer_data: bpy.types.CollectionProperty, key: str, td_type_key: str
@@ -131,3 +131,36 @@ def transfer_data_item_init(
                 obj_name=obj.name,
                 surrender=auto_surrender,
             )
+
+
+@contextlib.contextmanager
+def isolate_collection(iso_col: bpy.types.Collection):
+    col_exclude = {}
+    view_layer_col = bpy.context.view_layer.layer_collection
+    view_layer_col.collection.children.link(iso_col)
+    for col in view_layer_col.children:
+        col_exclude[col.name] = col.exclude
+
+    try:
+        # Exclude all collections that are not iso collection
+        for col in view_layer_col.children:
+            view_layer_col.exclude = col.name != iso_col.name
+        yield
+
+    finally:
+        for col in view_layer_col.children:
+            view_layer_col.exclude = col_exclude[col.name]
+        view_layer_col.collection.children.unlink(iso_col)
+
+
+@contextlib.contextmanager
+def link_objs_to_collection(objs: set, col: bpy.types.Collection):
+    ...
+    try:
+        for obj in objs:
+            col.objects.link(obj)
+        yield
+
+    finally:
+        for obj in objs:
+            col.objects.unlink(obj)