Fix #2063 export VC without material

KhronosGroup · Nov 22, 2023 · 86c04fa · 86c04fa
1 parent 230985d
commit 86c04fa
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py b/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py
@@ -482,7 +482,7 @@ def manage_material_info(self):
                         # We need to check if we need to add alpha
                         add_alpha = vc_alpha_name is not None
                         mat = get_material_from_idx(material_idx, self.materials, self.export_settings)
-                        add_alpha = add_alpha and not (mat.blend_method is None or mat.blend_method == 'OPAQUE')
+                        add_alpha = mat is not None and add_alpha and not (mat.blend_method is None or mat.blend_method == 'OPAQUE')
                         # Manage Vertex Color (RGB and Alpha if needed)
                         self.__manage_color_attribute(vc_color_name, vc_alpha_name if add_alpha else None)
                     else:

diff --git a/addons/io_scene_gltf2/blender/exp/material/gltf2_blender_gather_materials.py b/addons/io_scene_gltf2/blender/exp/material/gltf2_blender_gather_materials.py
@@ -555,6 +555,12 @@ def get_base_material(material_idx, materials, export_settings):
             mat,
             export_settings
         )
+
+    if material is None:
+        # If no material, the mesh can still have vertex color
+        # So, retrieving it
+        material_info["vc_info"] = {"color_type": "active", "alpha_type": "active"}
+
     return material, material_info
 
 def get_all_textures(idx=0):