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 povray v3.7.0) Server Time
28 Sep 2022 12:05:27 EDT (-0400)
  Re: weird white stain with beta povray v3.8.0 (not with povray v3.7.0)  
From: Alain Martel
Date: 20 Jan 2022 12:41:03
Message: <61e99eaf$1@news.povray.org>
Le 2022-01-20 à 08:20, Kenneth a écrit :
> // This light is NOT the cause of the bright radiosity patches.
> light_source{<-2,4,-3 >*1000000 color srgb <0.5,0.5,0.6>*0.75 }
> 

WHY put that light so far away ? Why not use a much closer one, but with 
the parallel attribute ?

When an object or light is situated at a distance in the million units 
range, you can get unexpected behaviour.

Alternative light that will get the exact same result :
light_source{<-2,4,-3 >*1000 color srgb <0.5,0.5,0.6>*0.75 parallel}


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