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KTX2 compressed with basisu etc1s and transparent looks lighter between r132 and r133

See original GitHub issue

KTX2 compressed with basisu and transparent looks lighter between r132 and r133

toktx compression command line toktx --t2 --2d --genmipmap --encode etc1s --lower_left_maps_to_s0t0 --verbose ss-gallery_1_512_rounded.ktx2 ss-gallery_1_512_rounded.png

in r132 we use texture.encoding = THREE.sRGBEncoding;

Expected behavior

looks same on r132 and r133

Screenshots r133 Bildschirmfoto von 2021-09-30 15-34-59

r132 Bildschirmfoto von 2021-09-30 15-34-53

Platform:

Device: Desktop
OS: Linux
Browser: Chrome
Three.js version: r133

cc @donmccurdy

Issue Analytics

State:
Created 2 years ago
Comments:13 (3 by maintainers)

Top GitHub Comments

2reactions

donmccurdycommented, Oct 4, 2021

There are several examples in the three.js website using KTX2, that haven’t become washed out like these screenshots. So there’s something specific about the application and/or textures here, and we won’t be able to debug it from screenshots. It could even be device-specific like https://github.com/mrdoob/three.js/issues/22631… if you can share some of the .ktx2 files you’re asking about, I would recommend starting a thread on the forums.

2reactions

mrdoobcommented, Oct 4, 2021

That’s expected. The darkening was incorrect: #22551

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