"Nathan Kopp" <Nat### [at] Koppcom> wrote in message
news:3a137d27$1@news.povray.org...
> In MegaPov, to enable dispersion for photons, you NEED to specify a
> color_map in the light_source.  There's a macro in one of the MP demo
files
> that you can use to aid in creating the spectrum.  I think the demo file
is
> called prism.pov.

Thanks Nathan.. I was wondering why the photons weren't being affected by
the dispersion.

I shall re-render.

Andy Cocker

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