//F. Apery's sextic equation
//for Boy's Surface
//by Adam Coffman

camera {
    location  <-2.75, 2.1,-0.27>
    look_at   <0.03, 1.2, 0.05>
      }
#include "colors.inc"  
#declare s = sqrt(2);
background{White}           
poly{ 6, < -81, 0, 108*s, 0, -243, 0, 0, -90, 36, 0, 0, -216*s, 0, 0,
0, 0, -24*s, 0, 0, 0, -243, 0, 0, -180, 72, 0, 144*s, -144*s, 0, 0,
36, 0, -16, 0, 0, 0, -324*s, 0, 0, 0, 0, 72*s, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, -81, 0, 0, -90, 36, 0, -48*s, 48*s, 0, 0, 36, 0,
-16, 0, 0, 0, 0, 0, 0, 0, 0, -24, 48, -32, 64/9, 0, 0, 0 >
     sturm
     pigment { SkyBlue }  
     finish {
         ambient 0.7
         phong 1
         phong_size 80                 
            }
     rotate x*-90      
    }             
light_source{<0.5,20,2> White shadowless} 
light_source{<-40,0.3,1.02> White}