multiply a texture by a float > 1 [Archive] - OpenGL Discussion and Help Forums

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totof

03-20-2003, 12:55 AM

Is it possible to multiply a texture by any float greater than 1 ?

I believe that GeForce 4 are limited by a scale of 1, 2, or 4 only.

Is it less restrictive on GeForce FX with Cg ?

JustHanging

03-20-2003, 07:15 AM

Hi,

I don't know if it helps, but you can always modulate by f/4 and then multiply by 4. That way you can multiply by any float up to 4. Expect precision problems on old hardware, though.

-Ilkka