Fix material duplication clean comparing with non-GP mats

1.8.11

- fixed: cleaning materials duplication checked against name without checking material GP type

CHANGELOG.md

@@ -14,6 +14,10 @@ Activate / deactivate layer opacity according to prefix
 Activate / deactivate all masks using MA layers
 -->
 
+1.8.11
+
+- fixed: cleaning materials duplication checked against name without checking material GP type
+
 1.8.10
 
 - fixed: node not deleted after a merge using (compo scene not referenced correctly to point node_trees)

__init__.py

@@ -2,7 +2,7 @@ bl_info = {
     "name": "GP Render",
     "description": "Organise export of gp layers through compositor output",
     "author": "Samuel Bernou",
-    "version": (1, 8, 10),
+    "version": (1, 8, 11),
     "blender": (3, 0, 0),
     "location": "View3D",
     "warning": "",

fn.py

@@ -1855,6 +1855,9 @@ def clean_mats_duplication(ob, skip_different_materials=True):
         basemat = bpy.data.materials.get(match.group(1))
         if not basemat:
             continue
+        if not basemat.is_grease_pencil:
+            ## Skip material with matching "stem" but not being GP material
+            continue
         diff = different_gp_mat(mat, basemat)
         if diff:
             print(f'! {ob.name} : {diff}')