POV-Ray : Newsgroups : povray.unofficial.patches : Dispersion dead? Server Time
1 Nov 2024 03:14:47 EDT (-0400)
  Dispersion dead? (Message 1 to 3 of 3)  
From: Greg M  Johnson
Subject: Dispersion dead?
Date: 17 Jun 2001 08:20:34
Message: <3b2ca092@news.povray.org>
I cannot get even the most simple dispersion scene to work in Mega 0.7.
I BTW STFM!

Can someone post the most simple scene for dispersion in 0.7, with a
light source hitting something and we see different colors afterwards?

Can someone also tell me exactly what POVRAY.INI settings, what global

but I get no dispersion, on my "other PC".


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From: Paul Blaszczyk
Subject: Re: Dispersion dead?
Date: 18 Jun 2001 06:05:15
Message: <3b2dd25b$1@news.povray.org>
You know that you need the spectrum macro for your lights?

dispersion and disp_elems must be in the interior {} as i know... look in
the MegaPOV demo files! prism.pov or threelens.pov

Paul


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From: JRG
Subject: Re: Dispersion dead?
Date: 20 Jun 2001 08:42:29
Message: <3b309a35@news.povray.org>
Dispersion, per se, doesn't make you get a spectrum with photons. Most times
it just makes the refracted rays look yellowish. If you want to get a
spectrum you should specify a color_map inside a light_source block. This is
just what the spectrum macro included in the prism demo scene does. As I
said before, sometimes the spectrum seems to disappear. Just rerender it and
you should finally get it. No specific ini or global settings are needed
(but I may be wrong...).
Jonathan.

"Greg M. Johnson" <"gregj;-()56590"@aol.c;-()om> ha scritto nel messaggio
news:3b2ca092@news.povray.org...
> I cannot get even the most simple dispersion scene to work in Mega 0.7.
> I BTW STFM!
>
> Can someone post the most simple scene for dispersion in 0.7, with a
> light source hitting something and we see different colors afterwards?
>
> Can someone also tell me exactly what POVRAY.INI settings, what global
> settings are necessary? I don't think I have anything funky going on,
> but I get no dispersion, on my "other PC".
>


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