gltf-transform cli resize is failed.

[neciszhang]

Hi,
gltf-transform resize in.glb out.glb --width 512 --height 512 is failed.Nothing has changed
gltf-transform cli version: 3.4.0.

[donmccurdy]

Hi @neciszhang, you'll probably need to share more information to get help with this. Some ideas:

1. Use --verbose to see any errors or warnings, and share them here.
2. Check the original sizes of the textures. Resizing should make sure they do not exceed 512x512, but it doesn't scale textures up or change their aspect ratio.
3. If neither of those options work, please share the model.

[neciszhang]

Hi,

here is model link
I use gltf.report to resize, this website can convert it successfully.

[donmccurdy]

I tested this model in glTF Transform v3.7.0, and that does reduce the resolution – could you try upgrading your version? Seems like it may be a bug in the old version.

You may also find that the file size (in bytes) increases after resizing, because the default png compression is lossless. If you'd like to apply lossy compression after resizing, you can do so with...

gltf-transform png in.glb out.glb --quality 80 --effort 100

... and the file size on disk will decrease as well.

[neciszhang]

Yes, when I upgraded to 3.7.0, the resize can be successful. I have another problem. When I use the etc1s gltf-transform etc1s in.glb out.glb, I am prompted to spawn Unknown system error -86.

[donmccurdy]

I'm not sure what would cause that – was it working in the previous version? If you run ktx -h in a commandline what do you see? It might be best to file an issue for this at https://github.com/donmccurdy/glTF-Transform/issues/new/choose.

Thanks!

[neciszhang]

ok, it’s a problem with my software installation. I installed a new version of KTX-Software, but it doesn’t match my computer.

[donmccurdy]

Hmm, ok! I believe glTF Transform supports the v4.2 stable releases of KTX Software, but I'm not sure about the v4.3 alpha release yet.