"Warp" <war### [at] tagpovrayorg> wrote in message news:3e26893d@news.povray.org...
> Mike Williams <mic### [at] quixnetnet> wrote:
> > How do I get an emission media to add to the light of a scene with
> > radiosity?
>
>   Reading the documentation might help. (Tip: 6.11.11.2.9)

I've tended to find that you need to set brightness > 1 to get any visible
effect. Here's the scene I played with:

#version 3.5;

#include "colors.inc"

global_settings {
  assumed_gamma 1.0
  ambient_light 0
  radiosity{
    pretrace_start 0.08
    pretrace_end   0.04
    count 200
    media true
    brightness 2
  }
}

camera {
  location  <0.0, 0.0, -5.0>
  look_at   <0.0, 0.0,  0.0>
}

box{-6,6 inverse pigment{White}}
plane{y,-1 pigment{checker pigment{Gray}, pigment{White}}}

sphere{
  0,1
  pigment{rgbf 1}
  hollow
  interior{
    media{
      density{agate}
      density{spherical}
      emission <1.0,0.5,1.0>
    }
  }
}

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