On 31.05.2009 11:59, Patrice Mandin wrote:
> Le Sun, 31 May 2009 11:08:07 +0200
> Philipp Klaus Krause <[email protected]> a écrit:
> 
>> Patrice Mandin schrieb:
>>
>>> In both 2.0 and 2.1 spec file I did not find anything saying
>>> GL_EXT_blend_equation_separate was promoted to the core for 2.0, and
>>> with Nvidia proprietary driver it's not defined also (version string is
>>> 2.1.2 in this case) as nv30 do not support it.
>> It seems like they just forgot to explicitly state that it has been
>> promoted to core in version 2.0.
>> However comparing section 4.1.8 of the OpenGL 1.5 and 2.0 specifications
>> shows that it has been promoted to core. BlendEquationSeparate is there
>> in the 2.0 spec, while it isn't in the 1.5 spec.
Yes, seems so. In fact if you take a newer spec it'll list
BlendEquationSeparate as promoted to core in 2.0.

> 
> Ah OK. Then I think I should write some test for renouveau, so I check
> what Nvidia do when using these functions on nv30.
AFAIK Nvidia did BlendFuncSeparate in software for nv20/25 so I'd guess
it could be the same for BlendEquationSeparate for nv30. Though maybe
the chip is flexible enough somehow to not require this.

Roland

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