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View Full Version : HW texture-modification on < gf3?



coelurus
07-23-2002, 09:50 AM
The problem is that I need to make quite a complex mathematical calculation (exponent) on a per-fragment level in hardware. If I'm not wrong, it's possible with texture-shaders, where the result of the exponentiation can be put into a "lookup-texture", but then you need atleast a geforce3. I wonder if it's even possible to do this on a geforce256 or similar.

Thanx in advance for any replies! http://www.opengl.org/discussion_boards/ubb/smile.gif

Bob
07-25-2002, 11:50 AM
You can turn on some emulator in pre GF3 reference drivers from NVIDIA, to software emulate a GF3 and above. Haven't tried it, so can't say how or if it works. Search for a program called GeForce Tweak Utility, which allows you to, among other things, turn on/off this emulation.