[Public WebGL] EXT_pvrtc_sRGB extension to WebGL?

Ken Russell ([email protected]) [email protected]
Thu Oct 3 13:30:31 PDT 2019

FYI: collaboration with Apple's WebKit team is underway to support the ETC1
and ETC2 compressed texture formats in
https://bugs.webkit.org/show_bug.cgi?id=197900 . ASTC support is already in
WebKit but currently behind a flag; another goal is to take it out from
behind that flag.


On Thu, Oct 3, 2019 at 7:37 AM Kai Ninomiya ([email protected]) <
[email protected]> wrote:

> These devices also support ETC2-sRGB via OpenGL ES 3.0, but the WebGL 1/2
> extension
> <https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_etc/> is
> not exposed yet in Safari. Would that work for you? Overall we are trying
> to focus on having good support for a smaller set of formats (ETC2 on
> mobile, S3TC on desktop, optionally ASTC) if other formats aren't necessary.
> On Wed, Oct 2, 2019, 7:07 AM Jukka Jylänki ([email protected]) <
> [email protected]> wrote:
>> Hi all,
>> I wonder if there have been any prior discussions about adding
>> https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_pvrtc_sRGB.txt
>> support over to WebGL side?
>> That would help towards enabling Unity support for linear color space
>> rendering on Apple iOS devices.
>> Cheers,
>> Jukka
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