glTF exporter: No texture export when original can't be retrieved

io_scene_gltf2/__init__.py

@@ -4,7 +4,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (3, 2, 28),
+    "version": (3, 2, 29),
     'blender': (3, 1, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',

io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py

@@ -36,6 +36,9 @@ def gather_image(
     else:
         # Retrieve URI relative to exported glTF files
         uri = __gather_original_uri(image_data.original.filepath, export_settings)
+        # In case we can't retrieve image (for example packed images, with original moved)
+        # We don't create invalid image without uri
+        if uri is None: return None
 
     buffer_view = __gather_buffer_view(image_data, mime_type, name, export_settings)
 

io_scene_gltf2/blender/exp/gltf2_blender_gather_texture.py

@@ -37,6 +37,7 @@ def gather_texture(
     )
 
     # although valid, most viewers can't handle missing source properties
+    # This can have None source for "keep original", when original can't be found
     if texture.source is None:
         return None