POV-Ray : Newsgroups : povray.binaries.images : Alum : Re: Alum Server Time
2 Dec 2023 19:15:01 EST (-0500)
  Re: Alum  
From: William F Pokorny
Date: 24 Sep 2021 11:41:02
Message: <614df18e$1@news.povray.org>
On 9/23/21 6:39 PM, Samuel B. wrote:
> I'm still not sure I understand. Does the equation restrict values due to its
> very nature? 

Well on the negative side sort of, maybe. Generally, I'd say the srgb 
decode equation mangles values outside the zero to one range making it 
hard to control - to get what you want and too easy to not get what you 

> Or did you impose a restriction so that it doesn't produce
> nonsense?

Yes. I think it better users make use of rgb* keywords, where they want 
to work with values outside the 0-1 range so povr forces this.

Bill P.

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