global_settings {
  assumed_gamma 1.0
  max_trace_level 20
  radiosity {
    pretrace_start 0.08
    pretrace_end   0.004
    count 500
    error_bound 0.25
    recursion_limit 2
    low_error_factor .5
    nearest_count 10
    brightness 1
    gray_threshold 0.0
    media on
    normal on
    always_sample on
  }
}



background { color rgb <0.1, 0.1, 0.2> }



camera {
  location <0, 4, -10>
  look_at  <0, 1, 0>
}

light_source {
  <5, 10, -5>
  color rgb <1, 1, 1>
}

light_source {
  <-10, 8, 5>
  color rgb <0.6, 0.6, 1>
}

plane {
  y, 0
  texture {
    pigment { color rgb <0.2, 0.4, 0.6> }
    finish {
      reflection 0.4
      specular 0.9
    }
    normal {
      bumps 0.5
      scale 0.3
    }
  }
}

#foreach( $s in $spheres )
sphere {
  <${s.x}, ${s.y}, ${s.z}>, ${s.radius}
  texture {
    pigment { color rgb <${s.r}, ${s.g}, ${s.b}> }
    finish { specular 0.7 reflection 0.2 }
  }
}
#end