compute shaders in WebGL ?

[Evgeny]

"WebGL isn't abandoned, WebGL 2 can already be used in most browsers and offers cool stuff like compute shaders." by Sascha Willems

https://twitter.com/webgl    (28.03.2016)

is it a misprint?

Evgeny

[Miao, Qiankun]

As I known, compute shaders isn’t supported by WebGL 2.0 currently.

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[Демидов Евгений Валентинович]

it's a pity. By the way
"Intel’s Bay Trail platform now has an extension that would allow for the use of tessellation shaders in OpenGL ES 3.0." (2014)
https://software.intel.com/en-us/articles/tessellation-for-opengl-es-31-on-android

really I'd like compute and geometry shader extensions in WebGL 2 at first :)

28.04.2016 11:20, Miao, Qiankun

[Kenneth Russell]

Incorporating compute shaders into WebGL is the working group's top priority after shipping WebGL 2.0.

WebGL 2.0 / OpenGL ES 3.0 introduce transform feedback, which while it is a limited form of compute, makes it much more comprehensible to implement algorithms like particle physics. It's no longer necessary to keep the system's state in a floating-point texture. The computation can be expressed clearly. See https://github.com/toji/webgl2-particles-2 for a little example.

-Ken

[Evgeny Demidov]

28.04.2016 14:46, Kenneth Russell:

> Incorporating compute shaders into WebGL is the working group's top
> priority after shipping WebGL 2.0.

any release dates?
WebGL 2 is quite good for me (more than 3 months :)

> WebGL 2.0 / OpenGL ES 3.0 introduce transform feedback, which while it
> is a limited form of compute, makes it much more comprehensible to
> implement algorithms like particle physics. It's no longer necessary
> to keep the system's state in a floating-point texture. The
> computation can be expressed clearly. See
> https://github.com/toji/webgl2-particles-2 for a little example.

yes, TF is more clear, but was a little slow in ANGLE with DX11 drivers
https://groups.google.com/forum/#!topic/webgl-dev-list/xLuV4eXG23Q
it was faster with --use-angle=gl (with ANGLE's OpenGL driver)

Evgeny

[Kenneth Russell]

On Thu, Apr 28, 2016 at 2:40 PM, Evgeny Demidov <dem...@ipm.sci-nnov.ru> wrote:

28.04.2016 14:46, Kenneth Russell:

Incorporating compute shaders into WebGL is the working group's top priority after shipping WebGL 2.0.

any release dates?
WebGL 2 is quite good for me (more than 3 months :)

I hesitate to announce anything here. We are fixing bugs every day toward shipment.

 

WebGL 2.0 / OpenGL ES 3.0 introduce transform feedback, which while it is a limited form of compute, makes it much more comprehensible to implement algorithms like particle physics. It's no longer necessary to keep the system's state in a floating-point texture. The computation can be expressed clearly. See https://github.com/toji/webgl2-particles-2 for a little example.

yes, TF is more clear, but was a little slow in ANGLE with DX11 drivers
https://groups.google.com/forum/#!topic/webgl-dev-list/xLuV4eXG23Q
it was faster with --use-angle=gl (with ANGLE's OpenGL driver)

Right, I remember that report. Hopefully we'll find engineering time to look into it soon.

-Ken

Evgeny