WEBGL_compressed_texture_s3tc_srgb WebGL extension

The WEBGL_compressed_texture_s3tc_srgb extension for WebGL 1.0 and 2.0 contexts adds S3TC compressed texture formats for the sRGB colorspace to compressedTexImage2D() and compressedTexSubImage2D().

Learning resources on MDN

• WEBGL_compressed_texture_s3tc_srgb extension

Browser support

• Chrome 60 Released on 2017-07-25
• Chrome Android 60 Released on 2017-08-01
• Edge 80 Released on 2020-02-07
• Firefox 55 Released on 2017-08-08
• Firefox for Android ❌
• Safari 14.1 Released on 2021-04-26
• Safari on iOS 14.5 Released on 2021-04-26

Baseline availability blocked since April 2021 by Firefox for Android (44 months)

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