Le coeur de Tore Nordstrand d'équation  
(2*x^2+y^2+z^2-1)^3-(1/10)*x^2*z^3-y^2*z^3 = 0 

#include "colors.inc"

camera { location <0, 1, -2.5>  look_at <0,0.3, 0>}
  
light_source { <-20, 15, -21>*0.8 color White }
light_source { <6, -5, -10> color red 1 green 0.8 blue 0.1}  
  
poly{6,<8.,0,0,0,12.,0,0,12.,0,-12.,0,0,0,0,0,0,0,0,0,0,6.,0,0,12.,0,-12.,0,0,0,0,6.,-0.1,-12.,0,6.,0,0,0,0,0,0,
           0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1.,0,0,3.,0,-3.,0,0,0,0,3.,-1.,-6.,0,3.,0,0,0,0,0,0,1.,0,-3.,0,3.,0,-1.>
 clipped_by{ box{ <-1,-2,-1>,<2,2,2>}}
    
 texture {
       pigment { rgb <1,0.2,0> }
  
       finish  {
                specular 0.6
                roughness 0.05
                ambient 0.4
               }
        }
rotate <-30,90,70>      
    
   }// fin poly 
        

plane{ z,1 
      texture{     
       pigment{rgb <0,0.2,1>*0.9}  // orange <0.8,0.6,0.1>*0.9
       normal{ bumps 0.5 noise_generator 3} 
       scale <0.2,0.1,2>*0.1 
       finish {ambient 0.6 diffuse 0.6   roughness 0.08 }   
             }// fin texture
      }