In article <38B8F541.C0956320@pacbell.net>, lin### [at] povrayorg 
wrote:

> I agree. I was just thinking how easy it would be to simulate a prism
> color spectrum using a rainbow color map with a gradient pattern. It
> would be much faster than using photons with dispersion and would give
> you greater control over the colors.

Hmm, maybe for simple shapes, and images which don't have to look 
super-realistic.
It would also be useful for simulating rainbows from objects out of 
view...

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/

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