scripts-blender/addons/asset_pipeline_2/constants.py

@@ -11,4 +11,5 @@ TRANSFER_DATA_TYPES = [
     ("NONE", "None", ""),
     ("VERTEX_GROUP", "Vertex Group", ""),
     ("MODIFIER", "Modifier", ""),
+    ("MATERIAL_SLOT", "Material Slot", ""),
 ]

scripts-blender/addons/asset_pipeline_2/ops.py

@@ -16,6 +16,7 @@ class ASSETPIPE_OT_update_ownership(bpy.types.Operator):
         task_layer_name = file_name.split(".")[-2]
         transferable_data.vertex_groups_update(obj, task_layer_name)
         transferable_data.modifiers_update(obj, task_layer_name)
+        transferable_data.material_slot_update(obj, task_layer_name)
         return {'FINISHED'}
 
 

scripts-blender/addons/asset_pipeline_2/transferable_data.py

@@ -75,3 +75,14 @@ def modifiers_update(obj, task_layer_name):
         matches = check_transfer_data_entry(ownership, mod.name, "MODIFIER")
         if len(matches) == 0:
             transfer_data_add_entry(ownership, mod.name, "MODIFIER", task_layer_name)
+
+
+# MATERIAL SLOT
+def material_slot_update(obj, task_layer_name):
+    ownership = obj.transfer_data_ownership
+    for slot in obj.material_slots:
+        matches = check_transfer_data_entry(ownership, slot.name, "MATERIAL_SLOT")
+        if len(matches) == 0:
+            transfer_data_add_entry(
+                ownership, slot.name, "MATERIAL_SLOT", task_layer_name
+            )