POV-Ray : Newsgroups : povray.beta-test : weird white stain with beta povray v3.8.0 (not with povray v3.7.0) : Re: weird white stain with beta povray v3.8.0 (not with povrayv3.7.0) Server Time
13 Aug 2022 06:16:44 EDT (-0400)
  Re: weird white stain with beta povray v3.8.0 (not with povrayv3.7.0)  
From: Cousin Ricky
Date: 16 Jan 2022 23:46:33
Message: <61e4f4a9$1@news.povray.org>
On 2022-01-16 14:46 (-4), William F Pokorny wrote:
> 
> In many places you are using the srgb keyword with channel values
> outside the 0-1 range. My povr branch doesn't allow this because any
> 'srgb calculation' outside the 0-1 range is wacky. See post elsewhere
> for details. If you need values outside 0-1, use rgb to exactly specify
> what you want for internal linear values.

For what it's worth, these are the out-of-domain sRGB calls, evaluated
under assumed_gamma 1:

customTextures.inc:
  srgb < 1, 0.9, 0.65> * 1.3 = rgb <1.8233, 1.4313, 0.6829>
  srgb < 1, 0.9, 0.65> * 1.15 = rgb <1.3758, 1.0815, 0.5186>
pentagramObject.inc:
  srgb 8 = rgb <131.4473, 131.4473, 131.4473>
  srgb 3 = rgb <12.8298, 12.8298, 12.8298>
pumpkin.inc:
  srgb < 1.5, 1, 0> = rgb <2.5372, 1.0000, 0.0000>

The post elsewhere with details:
https://news.povray.org/povray.general/thread/%3Cweb.60649d9bb9b7dccdd98418916e066e29%40news.povray.org%3E/


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