alphaQuad nous apporta ses lumieres en ce 2008/02/04 12:24:
> Alain <ele### [at] netscapenet> wrote:
> 
>> Now, how about adding some dispersion...
>>
> 
>> dispersion 0.03#if(CRAZY)dispersion_samples 20 #else dispersion_samples 9 #end
> 
> 
> Hmmm
> 
> The dispersion value is the ratio of refractive indices for violet to red. It
> controls the strength of dispersion (how much the colors are spread out) used.
> A DISPERSION_VALUE of 1 will give no dispersion, good values are 1.01 to 1.1.
> 
> why 0.03?
> 
> 
> 
Typo. I wanted to put 1.03. Anyway, 0.03 is a valid value, even if totaly 
unrealistic. It's a very strong dispersion where the red is more affected than 
the violet.

-- 
Alain
-------------------------------------------------
You know you've been raytracing too long when you look at a matrix transform and 
know instantly what it does.
John VanSickle

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