and BTW, here's the original ambient occlusion scene.  Guess it makes a good
wallpaper as well in a higher resolution.  Perhaps lowering count a bit
helps there... :)


global_settings{
  radiosity {
    pretrace_start .04
    pretrace_end   .006
    count 300
    nearest_count 20
    error_bound .1
    recursion_limit 3
    //low_error_factor .02
    gray_threshold 0.0
    minimum_reuse 0.005
    brightness 1.5
    adc_bailout 0.001/2
    //normal on
  }
 assumed_gamma 1
 max_trace_level 10
}

/* sky sphere */
sphere { 0, 10000
 pigment { rgb .86 }
 finish { ambient .9 diffuse .5 }
}

union {
 sphere { x 1 }
 sphere { -x*1.1 1 rotate 33*-z }
 plane { -z 0 }
 plane { -y, -1.6 }
 plane { x, -4.5 }

 pigment { rgb 1 }
 finish { diffuse .9 brilliance 1 ambient -.03 }

 translate z*5
}

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