Cannot resolve normalized_image_path

[henrytriplette]

Expected Behavior

When trying to optimize a glb file, application should return an optimized glb file.

Current Behavior

When trying to optimize a glb file, application returns ValueError: Cannot resolve *13 and quits

Steps to Reproduce

1. Using latest Windows version - yoga 1.3.1
2. Using latest Windows version of Blender - blender 4.0.2
3. Using Blender glb/gltf exporter, export 3D model
4. Using Yoga, run yoga model input.glb output.glb

Context (Environment)

• OS: Win 11
• Blender: 4.0.2
• Yoga: 1.3.1 / 1.3.0

Detailed Error Log

Traceback (most recent call last):
  File "C:\yoga\yogawin.py", line 6, in <module>
  File "C:\yoga\yoga\__main__.py", line 25, in main
  File "C:\yoga\concurrent\futures\_base.py", line 449, in result
  File "C:\yoga\concurrent\futures\_base.py", line 401, in __get_result
  File "C:\yoga\concurrent\futures\thread.py", line 58, in run
  File "C:\yoga\yoga\model\__init__.py", line 251, in optimize
  File "C:\yoga\yoga\model\helpers.py", line 135, in model_embed_images
ValueError: Cannot resolve *13

Possible solution

Maybe is something related to the blender exported file?

[flozz]

Hello,

Can you provide a 3D model that cause this error to allow me to reproduce? :)

[henrytriplette]

Sure thing,

Here is the file [LINK]

[flozz]

Ok, it seems we do not handle properly textures embedded in GLB...

If I provide a fallback texture, it works bit the output files goes to 10 MB...

$ python -m yoga model --fallback-texture fallback.png issue56.glb out.glb
Warning: Cannot resolve *13, using the fallback texture instead.
Optimizing fallback texture...
Warning: Cannot resolve *14, using the fallback texture instead.
Warning: Cannot resolve *12, using the fallback texture instead.
Warning: Cannot resolve *10, using the fallback texture instead.
Warning: Cannot resolve *11, using the fallback texture instead.
Warning: Cannot resolve *9, using the fallback texture instead.
Warning: Cannot resolve *7, using the fallback texture instead.
Warning: Cannot resolve *8, using the fallback texture instead.
Warning: Cannot resolve *6, using the fallback texture instead.
Warning: Cannot resolve *4, using the fallback texture instead.
Warning: Cannot resolve *5, using the fallback texture instead.
Warning: Cannot resolve *3, using the fallback texture instead.
Warning: Cannot resolve *1, using the fallback texture instead.
Warning: Cannot resolve *2, using the fallback texture instead.
Warning: Cannot resolve *0, using the fallback texture instead.

$ ls -lh out.glb
-rw-rw-r-- 1 fabien fabien 9,6M janv. 12 16:35 out.glb

I am not good enough on the 3D/Assimp part to help more with this issue :/

---

Maybe related issues:

• Improve yoga/assimp importing success rate #21
• Optimize already embedded textures #20

[flozz]

Also, there is noticeable changes between texture of the original GLB and the outputed one: