camera {
  location <1,5,5>
  look_at 0
}

light_source { <-5,5,-5> color rgb <1,0,0> }
light_source { <5,5,-5> color rgb <0,1,0> }
light_source { <-5,5,5> color rgb <0,0,1> }
light_source { <5,5,5> color rgb <1,1,1> }

sky_sphere {
  pigment {
    gradient y
    color_map { [0.0 color blue 0.6] [1.0 color rgb 1] }
  }
}

plane { 
  y, 0
  texture { 
    hexagon
    texture { 
      pigment {
        granite
        color_map { [0 color rgb <0.9,0.9,1>] [1 color rgb 0.5] }
        scale 3
      }
    }
    texture {
      pigment {
        color rgb 0.8
      }
    }
    texture {
      pigment {
        color rgb 0.2
      }
    }
  }
}

plane { 
  <1,0,1>, -10
  pigment {
    granite
    color_map { [0 color rgb <1,0,0>] [1 color rgb <0.6,0,0.6>] }
  }
  finish { 
    reflection 0.2
    specular 0.2
  }
}

#declare K = 0.4;

sphere {
  <0,1,0>, 1
  pigment { color rgb K }
  finish { 
    reflection K
    specular K
  }
}