// orthographic projection using parallel camera rays
// Could be used to render a planar image map, for example
camera {
  orthographic
  location <0,0,-1>    // position & direction of view
  look_at  <0,0,0>
  right 1*x            // horizontal size of view
  up 1*y               // vertical size of view
}
/*
box {                  // this box fits exactly in view
  <-0.5, -0.5, 0>, <0.5, 0.5, 0>
  texture { pigment { rgb <1, 0, 1> } }
}*/