Idiot question for the R8500 gods

[zeckensack]

The R200 spec summary seems to be down. Is it true that an R200 only offers 2 TMUs per pipe, compared to the 3 TMUs in the R100?

 

[ET]

AFAIK, yes, but it also allows up to 6 textures when multitexturing -- twice as much as the R100.

 

[zeckensack]

Thanks for the reply so far (I should have checked back earlier ). But I'm still not quite satisfied.

Does that mean that I can do this for example:

glActiveTextureARB(GL_TEXTURE2_ARB);
glEnable(GL_TEXTURE_2D);

without getting errors?
What does glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB,...) return?
I don't care whether the driver eats half of the pixel pipes in the process (Does it? Does fillrate drop?), as long as it's transparent and as long as it works without using shaders.

 

[Humus]

Yup, you can do up to
glActiveTextureARB(GL_TEXTURE5_ARB);
glEnable(GL_TEXTURE_2D);
without getting errors.

glGetIntegerv() will return 6. Pixel fillrate will of course drop when using more than two textures.

 

[zeckensack]

Ok, cool, thanks