[whatwg] Canvas feedback (various threads)

Philip Taylor excors+whatwg at gmail.com
Wed Aug 11 14:14:05 PDT 2010

On Wed, Aug 11, 2010 at 9:35 PM, Ian Hickson <ian at hixie.ch> wrote:
> On Thu, 29 Jul 2010, Gregg Tavares (wrk) wrote:
>> source-over
>>    glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
> I tried searching the OpenGL specification for either glBlendFunc or
> GL_ONE_MINUS_SRC_ALPHA and couldn't find either. Could you be more
> specific regarding what exactly we would be referencing?  I'm not really
> sure I understand you proposal.

The OpenGL spec omits the "gl"/"GL_" prefixes - search for BlendFunc
instead. (In the GL 3.0 spec, tables 4.1 (the FUNC_ADD row) and 4.2
seem relevant for defining the blend equations.)

Philip Taylor
excors at gmail.com

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