camera {
        location <0,0,-1>
        right x
        up y
        look_at  <0,0,0> }
        
plane { z,0
pigment { 
        quilted
        sine_wave
        turbulence 0.9        
        color_map {
                [ 0 color rgb 1.0 ]
                [ 0.3 color rgb 0.9 ]
                //[ 0.00001 color rgb 0.6 ]
                [ 1 color rgb 0.2 ]
                }
                scale 0.5
                }
finish { ambient 1 }
}