// http://xahlee.org/3d/index.html

#include "colors.inc"

background { color Cyan }

camera {
  location <3,3,-3>*1
  look_at  <0,0,0>
}

light_source { <4,4,4>  color White}

torus {
  1, 0.2   // main radius and tube radius
  pigment { Green }
}

torus {
  1, 0.2 // main radius and tube radius. (the torus's directrix is the y-axes)
  rotate <-30,0,0>      // rotate around x-axis 30°
  translate <1,0,0>  // translate by the vector (1,0,0)
  pigment { Yellow }
}

  plane { <0,1,0> // normal vector
        , 0 // distance from origin
    pigment {
      checker color White, color Red
    }
  }