POV-Ray : Newsgroups : povray.binaries.images : Why you may want gamma-correction : Re: Why you may want gamma-correction Server Time
31 Jul 2024 16:28:46 EDT (-0400)
  Re: Why you may want gamma-correction  
From: SharkD
Date: 6 Nov 2009 17:11:48
Message: <4af49f24$1@news.povray.org>
On 11/4/2009 9:52 PM, clipka wrote:
> I guess you'll agree there's something wrong with the reflection on the
> left side...
>
> Although artificially constructed, this scene may serve to showcase how
> raytracing computations can go wrong when ignoring gamma issues.
>
> Left side was rendered with POV-Ray 3.6 with default settings (i.e.
> without any gamma handling), right side was rendered with POV-Ray 3.7
> defaults (i.e. full-fledged gamma handling); the only difference between
> the scenes is in the brightness of the truly-grey squares, to roughly
> preserve the percieved contrast to the black-and-white-striped squares
> as seen on the unreflected plane (just as you would have to overhaul a
> legacy scene if you want to render it with full gamma handling).

Instead of arguing about it on this newsgroup, why don't one of you guys 
write a wiki article so we can just go along step by step, starting from 
the beginning?

Mike


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