POV-Ray : Newsgroups : povray.general : Possible radiosity and media interaction bug Server Time
31 Jul 2024 18:22:05 EDT (-0400)
  Possible radiosity and media interaction bug (Message 1 to 1 of 1)  
From: Cornelius
Subject: Possible radiosity and media interaction bug
Date: 22 Nov 2006 12:08:05
Message: <456483f5$1@news.povray.org>
Objects inside media receive too much light when the scene is inside a 
sphere. This happens in POV-Ray 3.6.1 Windows and UNIX versions.

// This
// sphere{0,100 hollow}

// and this makes the cylinder appear too bright inside media.
// sphere{0,100}

global_settings{
   assumed_gamma 1
   max_trace_level 10
   radiosity{error_bound 0.8 media on}
}

camera{
   location<-6,6,-6>
   direction 2*z
   look_at<0,0,0>
}

light_source{<10,10,-10> rgb 1}

box{<-2,-2,-1>,<2,2,1> hollow
   material{
     texture{pigment{rgbt<0,0,0,1>}}
     interior{media{scattering{1,0.1}}}
   }
}

cylinder{-2*z,2*z,1 pigment{rgb 1} finish{ambient 0}}


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