45c96904$1@news.povray.org...
> However, no matter how high your settings are, an ambient object which is 
> completely off screen will never light the scene, no matter its size or 
> brightness.

Hmm, this always worked OK for me. Are you sure that in your examples the 
ambient object wasn't blocked by something else?

global_settings {radiosity {count 1600 error_bound 1}}
camera {right x*1.33 location y look_at y+z}
sphere{0,0.5 translate <-2,2.5,-1> texture{pigment{rgb x} finish{ambient 
100}}}
sphere{0,0.5 translate <0,2.5,-1> texture{pigment{rgb y} finish{ambient 
100}}}
sphere{0,0.5 translate <2,2.5,-1> texture{pigment{rgb z} finish{ambient 
100}}}
box{<-3,0,-2>,<3,3,6> texture{pigment{rgb 1}finish{ambient 0}}}

G.

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