Angus Dorbie (dorbie++at++bitch.reading.sgi.com)
Fri, 24 Jan 1997 19:56:12 +0000
>
> That would suggest that the light reflected from the surface is still in
> the same 1.0,0.1,0.1 proportions. When this hits the receptors in your
> eye, you should *presumably* still see the same proportions of red, green
> and blue - unless your red receptors saturate completely and cease to detect
> the amount of incoming light correctly. It would have to be an EXTREMELY
> bright light to do that. Once the light gets that bright, what dominates
> what you see are some of the effects detailed in James Arvo's excellent paper
> at ("Physically-based Glare Effects for Digital Images")
>
If your'e interested in the perception of brightness & colour in
computer graphics you should read the SigGraph 96 paper "A Model
of Visual Adaptation for Realistic Image Synthesis" by Ferwerda,
Pattanaik, Shirley and Greenberg. It covers colour, spatial and
temporal effects.
Cheers,
Angus.
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