The light going through the prism should normaly
disperse (the glassy material is not perfectly straight,
there is a small warping in its normal, that should
accentuate the effect.)

The color seems to vary with the photon density.
At lower density, more color shows. But it's also
much granier.


-- 
Steven Pigeon, Ph. D.
ste### [at] videotronca
"dlm" <me### [at] addressinvalid> wrote in message 
news:42817e47$1@news.povray.org...
> Nice! What would be the source of the color then? Your light looks white 
> or
> perhaps vaguely blue. The only time I've seen much color in prisms is when
> they are optically active and the light is polarized. Now make POV do 
> that!
> :)
> DLM
>
> "Steven Pigeon" <pig### [at] iroumontrealca> wrote in message
> news:428161d0@news.povray.org...
>>
>> I have shot about 1Gb of photons, the shadows /
>> reflection seems very accurate, but despite dispersion
>> (and a rather dispersion_samples setting) the highlights
>> do not show color, except when pointing at the camera.
>> How so? ( I'm using 3.5 for windows... time to upgrade?)
>>
>>    interior
>>     {
>>      ior 2.0
>>      dispersion 1.15
>>      dispersion_samples 50
>>
>>      fade_distance 5.0
>>      fade_power 2.0
>>
>>      caustics 2
>>     }
>>
>>
>> -- 
>> Steven Pigeon, Ph. D.
>> ste### [at] stevenpigeoncom
>> ste### [at] videotronca
>>
>>
>
>

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