Rob Jenkins (robj++at++quid)
Sat, 4 Jan 1997 14:20:15 -0800
Not considering blending, lighting, fog etc then you could look at the texture
environment - man pfTexEnv, tevdef or glTexEnv will give you details. In the
default texture environment the 'mode' is MODULATE ( incoming color components
are multiplied by texture values ), you can change the texture environment to
control how texture effects the values of screen pixels as you need.
Cheers
Rob
On Jan 3, 4:43pm, Eric Heft wrote:
> Subject: Questions on texture and contrast.
> Hi,
>
> I was wondering if anyone could tell me what controls the pixel
> values of an object that has a texture, when the lighting model in
> perfly has been turned off.
>
> I've got a simple cylinder that has a texture map. The texture
> map ranges from 0-255 with an avg is 127.5. When I snap the textured
> cylinder its range is 39-165 with an avg of 101.6. So what's going
> on?
>
> Or perhaps a better question might be how do I fully control the
> intensity of the pixels in an object?
>
> Thanks.
> Eric
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>-- End of excerpt from Eric Heft
--
________________________________________________________________
Rob Jenkins mailto:robj++at++csd.sgi.com
Silicon Graphics, Mtn View, California, USA
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