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Re: [Public WebGL] WebGL extension registry



On Mon, Dec 6, 2010 at 5:28 PM, Gregg Tavares (wrk) <gman@google.com> wrote:
>
>
> On Mon, Dec 6, 2010 at 4:53 PM, Kenneth Russell <kbr@google.com> wrote:
>>
>> On Mon, Dec 6, 2010 at 4:45 PM, Gregg Tavares (wrk) <gman@google.com>
>> wrote:
>> > Should these extensions be marked as "draft" given that not even the
>> > WebGL
>> > spec is official yet?
>>
>> Hmm, it looks like the "Khronos Working Draft" banner might have
>> gotten lost during recent CSS changes. Vlad, could we add that back?
>> (Or did I miss it during the initial commit?)
>>
>> > Also, is there any particular reason the specs limit texImage2D and
>> > texSubImage2D to only using ArrayBufferView? Given all the conversion
>> > that
>> > happens already for texImage2D with img/video/canvas it seems like it
>> > would
>> > be really simple for implementations to support conversions to float and
>> > half float like they already convert to 4_4_4_4, 5_6_5 and 5_5_5_1
>>
>> It's not completely trivial and would double the number of code paths
>> in some areas. Also, until browsers have built-in support for high
>> dynamic range image formats, these conversions will just waste space.
>
> What image formats are supported by browsers are not defined. Any browser
> can add any formats it likes.
>
>>
>> For these reasons I think this should be left to a future revision of
>> the extension.
>
> That seems like a mistake to me. Put it now and things should just work. It
> would suck if some browser decided to add support for some HDR image format
> but the WebGL spec requires that it NOT work.

I'll look into it.

-Ken

>>
>> -Ken
>>
>> > On Mon, Dec 6, 2010 at 10:45 AM, Kenneth Russell <kbr@google.com> wrote:
>> >>
>> >> The WebGL working group is pleased to announce the availability of the
>> >> WebGL extension registry. The preliminary URL is:
>> >>
>> >> http://www.khronos.org/registry/webgl/doc/spec/extensions/
>> >>
>> >> This URL is likely to change in the coming weeks. A link to the
>> >> registry has been added to the references section of the
>> >> specification, and that link will be kept up to date.
>> >>
>> >> OES_texture_float is close to being implemented in WebKit, and we'll
>> >> post to the list once it is.
>> >>
>> >> Specifications for a few more extensions (OES_depth24,
>> >> OES_standard_derivatives, ...) are planned; see comments in the HTML
>> >> for the extension registry.
>> >>
>> >> -Ken
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>> >
>
>
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