Matti Karnaattu wrote:

> And this is not. You forgot the light wavelenghts. Pov-Ray dispersion
> calculation make simple rainbow for light which ior will range from
> ior/sqrt(disp) to ior*sqrt(disp). To calculate correct dispersion value we
> need several ior values and the light wavelenghts used to measure ior
> values to approximate dispersion value.

It should be noted that the dipersion feature in POV-Ray is merely an
approximation and was not designed or intended to offer a scientifically
valid method of light visualization.

-- 
Ken Tyler

Post a reply to this message