2026-01-01

extensions/blender_org/material_utilities/__init__.py

@@ -17,18 +17,6 @@
 #  Link to base names: Sybren, Texture renamer: Yadoob
 # ###
 
-bl_info = {
-    "name": "Material Utilities",
-    "author": "MichaleW, ChrisHinde",
-    "version": (2, 2, 2),
-    "blender": (3, 0, 0),
-    "location": "View3D > Shift + Q key",
-    "description": "Menu of material tools (assign, select..) in the 3D View",
-    "warning": "Beta",
-    "doc_url": "{BLENDER_MANUAL_URL}/addons/materials/material_utils.html",
-   "category": "Material"
-}
-
 """
 This script has several functions and operators, grouped for convenience:
 

extensions/blender_org/material_utilities/blender_manifest.toml

@@ -1,12 +1,15 @@
 schema_version = "1.0.0"
 id = "material_utilities"
 name = "Material Utilities"
-version = "2.2.2"
+version = "2.2.3"
 tagline = "Menu of material tools (assign, select..) in the 3D View"
 maintainer = "Community"
 type = "add-on"
 tags = ["Material"]
 blender_version_min = "4.2.0"
-license = ["SPDX:GPL-2.0-or-later"]
+license = ["SPDX:GPL-3.0-or-later"]
 website = "https://projects.blender.org/extensions/materials_utils"
-copyright = ["2024 MichaleW", "2024 ChrisHinde"]
+copyright = [
+    "2024 MichaleW",
+    "2024 ChrisHinde",
+]

extensions/blender_org/material_utilities/functions.py

@@ -512,6 +512,8 @@ def mu_remove_all_materials(self, for_active_object = False):
         objects = bpy.context.selected_editable_objects
 
         for obj in objects:
+            if not hasattr(obj.data, "materials"):
+                continue
             obj.data.materials.clear()
 
         bpy.context.view_layer.objects.active = last_active

extensions/blender_org/material_utilities/operators.py

@@ -285,7 +285,16 @@ class VIEW3D_OT_materialutilities_remove_all_material_slots(bpy.types.Operator):
 
     @classmethod
     def poll(cls, context):
-        return (context.active_object is not None) and (context.active_object.mode != 'EDIT')
+        if (obj := context.active_object) is None:
+            cls.poll_message_set("No active object selected.")
+            return False
+        elif not hasattr(obj.data, "materials"):
+            cls.poll_message_set("Active object doesn't support materials.")
+            return False
+        elif obj.mode == "EDIT":
+            cls.poll_message_set("Active object is in EDIT mode.")
+            return False
+        return True
 
     def draw(self, context):
         layout = self.layout