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Re: [Public WebGL] WEBGL extension suggestion: EXT_shader_framebuffer_fetch

Out of curiosity, is this extension intended for implementing different kinds of blending in shaders? Is there any overlap with WEBGL_blend_equation_advanced_coherent? (Draft: https://www.khronos.org/registry/webgl/extensions/WEBGL_blend_equation_advanced_coherent/ - no implementations yet AFAIK)

On Fri, 15 May 2020 at 11:20, Ray Tran (ray.tran@snapchat.com) <public_webgl@khronos.org> wrote:
Hi Ken,

Thanks for the reply - the pull request is here: https://github.com/KhronosGroup/WebGL/pull/3074

Do let me know if any changes need to be made to the proposal?


On Mon, May 11, 2020 at 11:01 PM Ken Russell (kbr@google.com) <public_webgl@khronos.org> wrote:
Hi Ray,

Yes, a high-impact but mostly mobile-only extension like this can certainly be considered. Would you please take a little time and put up a pull request on https://github.com/KhronosGroup/WebGL under https://github.com/KhronosGroup/WebGL/tree/master/extensions/proposals, following the XML pattern there?



On Mon, May 11, 2020 at 10:05 AM Mark Callow (khronos@callow.im) <public_webgl@khronos.org> wrote:

On May 11, 2020, at 9:50, Ray Tran (ray.tran@snapchat.com) <public_webgl@khronos.org> wrote:

 I have also found that
major mobile GPU vendors have supported and advised developers to use
this extension to improve performance on their GPUs for many (5+)

This is ironic given the opposition to adding programmable blending to OpenGL over many, many years, decades even, on the grounds that it would cause performance issues.



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