support blender 4.1 smooth shading breaking change

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "NICE"]
 	path = NICE
-	url = https://github.com/schadocalex/gbx-py
+	url = https://github.com/schadocalex/gbx-py

panels/PT_Items_Manipulate.py

@@ -264,12 +264,14 @@ def draw(self, context):
                 editmode = obj.mode == "EDIT"
                 row.operator("object.shade_smooth" if not editmode else "mesh.faces_shade_smooth", icon=ICON_SMOOTH)
                 row.operator("object.shade_flat"   if not editmode else "mesh.faces_shade_flat", icon=ICON_FLAT)
-                row= col.row(align=True)
-                innercol = row.column(align=True)
-                innercol.scale_x = 1.2
-                innercol.prop(obj.data, "use_auto_smooth", toggle=True, icon=ICON_FLAT_SMOOTH)
-                innercol = row.column(align=True)
-                innercol.prop(obj.data, "auto_smooth_angle", text="")
+
+                if bpy.app.version < (4, 1, 0): # 4.1 changed auto smooth to geo nodes AHHHH
+                    row= col.row(align=True)
+                    innercol = row.column(align=True)
+                    innercol.scale_x = 1.2
+                    innercol.prop(obj.data, "use_auto_smooth", toggle=True, icon=ICON_FLAT_SMOOTH)
+                    innercol = row.column(align=True)
+                    innercol.prop(obj.data, "auto_smooth_angle", text="")
 
 
 

utils/ItemsImport.py

@@ -218,10 +218,23 @@ def _clean_up_imported_item_gbx(objs: list[bpy.types.Object], item_name: str, de
                 slot.material = mat
 
         # auto smooth
-        obj.data.polygons.foreach_set('use_smooth',  [True] * len(obj.data.polygons))
-        obj.data.use_auto_smooth = 1
-        obj.data.auto_smooth_angle = math.pi/6  # 45 degrees
-
+        use_old_smoothing = bpy.app.version < (4, 1, 0)
+
+        if use_old_smoothing:
+            obj.data.polygons.foreach_set('use_smooth',  [True] * len(obj.data.polygons))
+            obj.data.use_auto_smooth = 1
+            obj.data.auto_smooth_angle = math.pi/6  # 45 degrees
+
+        else:
+            # ugly access, maybe there is a better way to get the "nodes?" by name...
+            bpy.context.view_layer.objects.active = obj
+            bpy.ops.object.modifier_add_node_group(
+                asset_library_type='ESSENTIALS', 
+                asset_library_identifier="", 
+                relative_asset_identifier="geometry_nodes\\smooth_by_angle.blend\\NodeTree\\Smooth by Angle")
+            mod = obj.modifiers[-1]
+            mod["Input_1"]      = math.pi/2 # float "Angle"
+            mod["Socket_1"]     = True      # bool  "Ignore Sharpness"
 
         obj.name = f"{item_name} {obj.name}"