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Re: [Public WebGL] Shader validator issue.



support for something like standard_derivitives.

Is that a math thing, a first connection with OCL? Thanks and Best, Joe


----- Original Message ----- From: "Chris Marrin" <cmarrin@apple.com>
To: "Kenneth Russell" <kbr@google.com>
Cc: "Ben Vanik" <Ben.Vanik@microsoft.com>; <steve@sjbaker.org>; "Gregg Tavares (wrk)" <gman@google.com>; "Vladimir Vukicevic" <vladimir@mozilla.com>; "public webgl" <public_webgl@khronos.org>
Sent: Tuesday, August 24, 2010 4:14 PM
Subject: Re: [Public WebGL] Shader validator issue.




On Aug 24, 2010, at 11:14 AM, Kenneth Russell wrote:

On Tue, Aug 24, 2010 at 9:31 AM, Chris Marrin <cmarrin@apple.com> wrote:

On Aug 23, 2010, at 1:41 PM, Kenneth Russell wrote:

Support for OES_standard_derivatives is in the process of being added
to the ANGLE shader validator. See
http://code.google.com/p/angleproject/issues/detail?id=25 . Once this
is in place, it will be possible to enable OES_standard_derivatives in
a WebGL app. (We need to start a WebGL extension registry...part of
this is still on my plate.)

Extensions aren't enabled in WebKit yet, are they? How about Firefox?

They aren't enabled in WebKit yet. I think we need to specify them before adding support.

The extension mechanism is defined in the spec, but the functions are not yet in WebKit I see. Once they are, it seems reasonable to add experimental support for something like standard_derivitives.


-----
~Chris
cmarrin@apple.com




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