POV-Ray: Newsgroups: povray.general: Random values from color

POV-Ray : Newsgroups : povray.general : Random values from color_map		Server Time 7 Nov 2024 00:21:14 EST (-0500)

From: Skip Talbot
Subject: Random values from color_map
Date: 20 Feb 2004 03:47:47
Message: <4035c9b3@news.povray.org>

If I define a color_map, how can I have POV pull random color vectors from
it?  I'm tinkering with functions but I'm hitting dead ends or just don't
have the syntax.

Skip

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From: ABX
Subject: Re: Random values from color_map
Date: 20 Feb 2004 04:57:42
Message: <6emb30hs6vvt4nie9t12dulvka61dno4o4@4ax.com>

On Fri, 20 Feb 2004 02:47:52 -0600, "Skip Talbot" <sta### [at] uiucedu> wrote:
> If I define a color_map, how can I have POV pull random color vectors from
> it?  I'm tinkering with functions but I'm hitting dead ends or just don't
> have the syntax.

Something like :

#local Gen=function{pigment{gradient x colour_map{...}}};
#local Seed=seed(...);
#local Val=Gen(rand(Seed),0,0);

?

ABX

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From: Skip Talbot
Subject: Re: Random values from color_map
Date: 20 Feb 2004 13:16:07
Message: <40364ee7$1@news.povray.org>

Brilliant!  Thank you, sir.

Skip

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