In article <3a5f7d93@news.povray.org>, "Equiprawn" 
<ele### [at] redbrickdcuie> wrote:

> So I was wondering - you it be possible to add this kind of feature 
> to a raytracer? Would it just be an addition to the light source code 
> (like some kind of colourmap, except for frequencies)? Or would it be 
> necessary to specify aswell in textures how they should react to 
> different frequencies of light? Would it be difficult to add this 
> kind of thing?

Full simulation of this type of thing would be extremely difficult, 
slow, and still not a perfect representation of reality...however, there 
is such a thing as "good enough". :-)
Colored lights are allowed...they are sufficient in many cases. If you 
want to model the splitting of wavelengths from prisms, MegaPOV has a 
dispersion patch (which works with photon mapping). I'm not sure what 
the exact effect you want is...do you want calculations done in spectral 
color space instead of RGB?

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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