[Public WebGL] Status of EXT_clip_cull_distance ?

Brandon Jones ([email protected]) [email protected]
Thu Jun 18 16:36:11 PDT 2020


Out of curiosity, do you have some examples of the types of techniques that
having this extension available would allow?

--Brandon

On Fri, Jun 5, 2020 at 11:59 AM Kevin Rogovin ([email protected])
<[email protected]> wrote:

>
> Hi,
>
>  I'll do this when I get back from vacation.
>
> Best Regards,
>  -Kevin Rogovin
>
> On Wed, Jun 3, 2020 at 2:11 AM Ken Russell ([email protected])
> <[email protected]> wrote:
> >
> > Hi Kevin,
> >
> > A change like this sounds fine. The best way to have it reviewed would
> be to put up a pull request on https://github.com/KhronosGroup/WebGL
> modifying the extension.xml. Check the other extension.xml files in the
> directory to see how to list WebGL-specific behavioral changes in a
> structured manner. Update the revision section, run "make" in your
> extensions/ directory to make sure the generated HTML is as you expect, and
> then file the PR.
> >
> > Thanks,
> >
> > -Ken
> >
> >
> > On Tue, Jun 2, 2020 at 1:11 AM Kevin Rogovin (
> [email protected]) <[email protected]> wrote:
> >>
> >>
> >> Hi,
> >>
> >>  There is a small chance that I might be able to get permission from
> >> my employer to implement this, atleast starting at ANGLE. However, I'd
> >> like to make a change request to ease the implementation burden and
> >> enlarge the class of hardware that can support it in native GLES3.
> >> Specifically, I'd like to change the minimum value of
> >> MAX_CLIP_DISTANCES_EXT from 8 to 0 for *just* the WebGL extension. The
> >> motivation is that if the value is 0, for desktop GL one can then
> >> write it for older GL (namely pre 4.x without GL_ARB_cull_distance)
> >> and for GLES3, one needs only the older Apple extension,
> >> GL_APPLE_clip_distance.
> >>
> >> What is the proper channel for the change request?
> >>
> >> Best Regards,
> >>  -Kevin
> >>
> >> On Tue, Jun 2, 2020 at 2:52 AM Jeff Gilbert ([email protected])
> >> <[email protected]> wrote:
> >> >
> >> >
> >> > It's waiting on experimental implementations in browsers. It's still
> >> > on-track, but unfortunately, without browser engineering bandwidth to
> >> > write the implementations, it's in a holding pattern.
> >> >
> >> > On Wed, May 27, 2020 at 9:38 PM Kevin Rogovin
> >> > ([email protected]) <[email protected]> wrote:
> >> > >
> >> > >
> >> > > Hi,
> >> > >
> >> > >  The extension at
> >> > >
> https://www.khronos.org/registry/webgl/extensions/EXT_clip_cull_distance/
> >> > > was promotoed to draft about a year ago, but nothing has happened
> for
> >> > > quite some time. Is the extension on track to be promoted further to
> >> > > approved and hopefully land in some browsers?
> >> > >
> >> > > Best Regards,
> >> > >  -Kevin
> >> > >
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