POV-Ray : Newsgroups : povray.binaries.images : Upgrading POV-Ray's include files #1: granites.inc --> granites21.inc : Re: Upgrading POV-Ray's include files #1: granites.inc --> granites21.inc | changed the 'Black' value Server Time
19 Oct 2021 11:26:36 EDT (-0400)
  Re: Upgrading POV-Ray's include files #1: granites.inc --> granites21.inc | changed the 'Black' value  
From: Thomas de Groot
Date: 13 Apr 2021 03:00:12
Message: <6075417c$1@news.povray.org>
Op 12/04/2021 om 12:48 schreef Bald Eagle:
> One other important thing that I had never thought of, but the ShaderToy folks
> have brought up:
> No values in the (s)rgb triplets should ever be zero.
> First, because there are almost never absolutely black objects in real life
> ("vanta black")
> and second, because there is no way to modify it with a multiplier.
> If you had a red value of one millionth, you could multiply that by a million to
> get 1.   But anything multiplied by zero is always zero.
> So maybe we can set some min() threshold value that doesn't really register on a
> monitor (1/256).
> 

Done.

I changed every <0.000, 0.000, 0.000> to <0.004, 0.004, 0.004> (which 
corresponds to 1/256)


-- 
Thomas


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