intersection{
  box{ <-2.0, -4.0,-4.0>,<2.0, 4.0,4.0> }
  object{ Hyperboloid }
   
  texture { pigment{ color rgb<0.7, 1.0, 0.0> }
            finish { phong 0.1 }
          }
  scale <1,0.5,1>*0.5 rotate<0,0,0> translate<0,1.00,0.0>
} // end of intersection  --------------------------------