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dror-ai
02-11-2002, 09:39 PM
Hi,

I'm using glMinmax function with Nvidia GeForce3 ti 200.
The performance of glCopyPixels is very slow enabeling this
feature (GL_MINMAX). Can anybody knows how to accelerate it?

Is GL_ARB_imaging extension is implemented in hardware or in
software?
Is anybody knows any other fast method to grab pixels with
specific color from a buffer without reading the whole
buffer?

Thanks,

Dror

davepermen
02-12-2002, 09:39 AM
arb_imaging is software

zed
02-12-2002, 11:30 AM
minmax looks like being done in hardware on my gf2mx unlike other parts of the arb_imaging subset eg convultion or colour matrix