//Elliptic point animation
//by Adam Coffman
//June 2006


camera {
    location  <-.45,0.25,0.55>
    look_at   <0,0.06, 0>
      }

 #include "colors.inc"
 background{White}
#declare T=1/5*sin(2*pi*(clock+0.01));
  
  poly { 3 <
    0,2,0,3/2+T,0,0,0,0,0,0,0,0,0,-2,0,-1,0,1/2-2*T,0,0>
    sturm 
 pigment {
   brick   rgb <0,0,0,0,0>  rgb <0,0,1,0,.6>
   brick_size <50,0.02,50> mortar 0.004     
   translate <2,0.002,2> 
 }
    bounded_by { cylinder{<0,3,0> <0,-3,0> 1/3 }  }
    clipped_by { bounded_by }
                  
   }
  
  light_source{<0.5,20,0> White shadowless} 
 light_source{<-40,0,0.5> White shadowless}
  light_source{<40,0,0.5> White shadowless}
  light_source{<0,0.5,40> White shadowless}