torus {
   0.75, 0.25
   pigment {
      image_map {
         gif "../gfx/mmap.gif"
         map_type 5 
      }
      rotate y*-90
   }
   translate <0.5, 0.5, 0.5>
}

plane {
   -z, -10
   pigment { checker color rgb <1, 1, 1> color rgb <0, 0, 0> rotate 45*z }
}

light_source { <50, 30, -50> color rgb <1, 1, 1> }

camera {
   location <1.5, 1.5, -2>
   look_at <0.5, 0.5, 0.5>
}