[Public WebGL] proposal draft for EXT_texture_filter_anisotropic

Kenneth Russell [email protected]
Thu Feb 23 18:54:48 PST 2012


On Thu, Feb 23, 2012 at 6:52 PM, Benoit Jacob <[email protected]> wrote:
>
>
> ----- Original Message -----
>> The extension should be in "draft" state, not "proposed" state,
>> before
>> anyone implements it.
>
> Ah OK. Anyway, as Florian said in his email, he's just implemented it in Mozilla.
>
>> See the very clear "DO NOT IMPLEMENT!" at the
>> top of
>> https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/extensions/proposals/EXT_texture_filter_anisotropic/index.html
>> .
>
> I admit I was a bit confused by that. The draft seemed good enough for an implementation as an experimental (vendor-prefixed) extension. There doesn't seem to be much to argue about, in this extension spec. Is now the right time to drop the "DO NOT IMPLEMENT!" and keep it in "proposed" state?

Gregg specifically added the "do not implement" text for proposals.
Drafts don't contain that text. All that's needed to change the state
is change one keyword in the extension.xml, move it out of the
"proposals" folder and re-run make. Are there any objections to doing
that?

-Ken


> Benoit
>
>>
>> Are there any objections to moving this WebGL extension into draft
>> state? I don't suspect there would be...
>>
>> No objections to incorporating a conformance test for it as long as
>> it
>> passes without the extension being available and is prefixed with a
>> minimum version of 1.0.2.
>>
>> -Ken
>>
>>
>> On Thu, Feb 23, 2012 at 6:03 AM, Florian Bösch <[email protected]>
>> wrote:
>> > A patch to introduce this extension has been accepted by Mozilla to
>> > mozilla-inbound:
>> >  https://bugzilla.mozilla.org/show_bug.cgi?id=728354
>> >
>> > - The extension name MOZ_EXT_texture_filter_anisotropic is used by
>> > firefox.
>> > - A conformance test has been added for this
>> > feature:
>> >  http://hg.mozilla.org/integration/mozilla-inbound/diff/a6dfdf5a529d/content/canvas/test/webgl/ext-texture-filter-anisotropic.patch
>> > - Is it possible to accept this conformance test upstream to the
>> > Khronos
>> > conformance test suite?
>> > - A demo for anisotropic filtering is available
>> > at: http://codeflow.org/webgl/anisotropy/
>> > - Sample picture of the demo:
>> >  http://codeflow.org/pictures/anisotropy.jpg
>> >
>> > Example Code:
>> >
>> > var ext = gl.getExtension('MOZ_EXT_texture_filter_anisotropic');
>> > if(ext){
>> >     var max = gl.getParameter(ext.MAX_TEXTURE_MAX_ANISOTROPY);
>> >     gl.texParameterf(target, ext.TEXTURE_MAX_ANISOTROPY, max);
>> > }
>> >
>> > Angle OpenGL works fine, but Direct3D support is not yet there for
>> > this
>> > feature, requirement described
>> > there: http://code.google.com/p/angleproject/issues/detail?id=297
>> >
>>

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