On Mon, 14 Jan 2002 13:41:47 -0500, Christopher James Huff wrote:
> In article <slr### [at] fwicom>,
>  Ron Parker <ron### [at] povrayorg> wrote:
> 
>> Polarization wouldn't be much harder to deal with than dispersion, though
>> birefringence might make it a little more interesting.
> 
> Wouldn't you have to keep track of the amount of light polarized along 
> each plane? Probably with some kind of spline relating intensity of 
> light to angle of polarization? A lot more data for each ray...

Compared to what we keep track of for dispersion?  Not really.

-- 
#macro R(L P)sphere{L F}cylinder{L P F}#end#macro P(V)merge{R(z+a z)R(-z a-z)R(a
-z-z-z a+z)torus{1F clipped_by{plane{a 0}}}translate V}#end#macro Z(a F T)merge{
P(z+a)P(z-a)R(-z-z-x a)pigment{rgbf 1}hollow interior{media{emission 3-T}}}#end 
Z(-x-x.2x)camera{location z*-10rotate x*90normal{bumps.02scale.05}}

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