camera {
  location  <0, 0, 13>
  up        <0, 1, 0>
  right     <1, 0, 0>
  look_at   <0, 0, 0>
}

light_source {<0, 0, 7> color rgb <0.77, 0.15, 0.15>}

sphere { <-3, 0, 0>, 2
  pigment { color rgb <1.0, 1.0, 1.0>}
}

sphere { <3, 0, 0>, 2
  pigment { color rgb <1.0, 1.0, 1.0>}
}

sphere { <-3, 2, 0>, 1
  pigment { color rgb <0.0, 0.0, 0.0>}
}

sphere { <3, 2, 0>, 1
  pigment { color rgb <0.0, 0.0, 0.0>}
}

