Cousin Ricky nous apporta ses lumieres en ce 2005-12-12 22:15:

> Also, be careful with your dispersion compared to your ior.  At ior 1.1
> dispersion 1.2, if i understand this right (not guaranteed!), the red will
> not refract at all.
> 
> 
You prompted me to do a small test:
	interior{ior 1.2 dispersion 1.5 dispersion_samples 44}
Using a simple prism with rgbt 3 to boost the spectra brightness.
The red does refract a little. If I raise the dispersion to 1.6, the red refract UP

-- 
Alain
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