// Last edited on 2011-02-14 11:35:37 by stolfilocal
// Cloudy sky (adaptade from 1.3.5.2.3 "Adding Some Clouds") 

sky_sphere {
    pigment {
      gradient y
      color_map {
        [0.000 0.002 color rgb <0.7, 0.6, 0.4>
                     color rgb <0.3, 0.5, 1.0>]
        [0.002 1.000 color rgb <0.3, 0.5, 1.0>
                     color rgb <0.2, 0.4, 8.0>]
      }
      scale 2
      translate -1
    }
    pigment {
      bozo
      turbulence 0.65
      octaves 6
      omega 0.7
      lambda 2
      color_map {
          [0.0 0.3 color rgb  < 0.85, 0.90, 1.00 >
                   color rgb  < 0.85, 0.90, 1.00 > ]
          [0.3 0.7 color rgb  < 0.85, 0.90, 1.00 >
                   color rgbt < 1.00, 1.00, 1.00, 1.00 > ]
          [0.7 1.0 color rgbt < 1.00, 1.00, 1.00, 1.00 >
                   color rgbt < 1.00, 1.00, 1.00, 1.00 > ]
      }
      scale 0.3*<0.2, 0.5, 0.2>
    }
    rotate -135*x
}