"Przemek Loesch" <nomail@nomail> wrote in message
news:web.41dc31707fd832bfb0aac12c0@news.povray.org...
> - lighting (radiosity)?

I think you could make a big difference by shinning your light source
through from inside a translucent object (well out of camera shot) with a
texture to emulate shadows coming from that sort of scattered cloud cover.
This would add some subtle variation to all of the colours (that currently
look a bit too uniform) throughout the scene.

You might like to try something like:

camera{location<0,14,-40>look_at 0}
light_source{<25,50,-25>rgb 1}
sphere {0,1
  pigment {granite
    color_map {
      [ 0.1  color rgbt 0.8]
      [ 0.2  color rgbt 1]
      [ 0.4  color rgbt 1]
      [ 0.5  color rgbt 0.9]
      [ 1.0  color rgbt 0.8]
    }
    scale <20,1,2>
  }
  translate <25,50,-25>
}
plane {y,0 pigment {color rgb <0,1,0>}}
box {-7,7 pigment {color rgb <1,1,1>}}

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