Failed to load KTX2 texture data used Zstandard (zstd) Compression

Bugs
1

Failed to load KTX2 texture data used Zstandard (zstd) Compression.

I’ve confirmed that I can no longer load KTX2 images using Zstandard (zstd) Compression.
I recall it displaying correctly a month ago.
Loading KTX2 images without using zstd is still possible.
Any ideas on what may be happening or what that error is telling us?

-BabylonJS version where the issue was confirmed-
8.44.1
9.81.1
However, I recall that it was displaying correctly a month ago.

-Browsers where the issue was confirmed-
Microsoft Edge: version 150.0.4078.83
Firefox: version 153.0.1
Safari: version18.6(20621.3.11.11.3)
Android Chrome: version 150.0.7871.186

screenshot
screenshot1360×840 121 KB

2

do i Understand correctly, that it is not working in the 8.X branch as well?

3

Yes.

4

Here are the files used for verification: the standalone texture and a .glb file containing the texture.
The filenames differ based on whether ZSTD compression is used.

5

ok. You are saying “no longer can load it”. when did it work? can you specify a version in which it worked? it will help us pinpoint the time where it happened and will help us prevent that from happening again. And of course, help us fix it :slight_smile:

6

cc @alexchuber if it rings a bell ?

7

Thanks for the bug report! Yup, the regression was between 9.18 → 9.19.