#default {
   texture {
      finish {
         ambient 0
         diffuse 1
      }
   }
}

#declare sqrt2_2 = 0.707

#declare Light = light_source {
   <100, 100, -200>
   color rgb <1, 1, 1>

   spotlight
   point_at <0, 0, 0>
   radius 2.5
   falloff 2.5
}

union {
   torus {
      5, 0.5
      rotate <90, 0, 0>
   }
   cylinder {
      <0, 0, 0>, <0, 10, 0>, 0.5
   }
   pigment { color rgb <0.5, 0.5, 1> }
}

plane {
   y, 0
   pigment {
      checker color rgb <0.75, 0, 0.75> color rgb <0.5, 0, 0.5>
      scale 3
   }
}

light_source { Light }

camera {
   location <-2, 16, -8>
   look_at <0, 5, 0>
}