/*équations :
S :=-1-x+x^2+x^3+x^2*z+z+2*x*z+y^2*x+y^2-y^2*z
 */

#include "colors.inc" 
#include "stones.inc"
#include "metals.inc"

 camera { orthographic 
          location <-2.5,0.6,-3>*0.75 look_at<0,0.2,0> }
 
light_source { <-4,5,-10> color White}
light_source { <-5,10,-20> color White shadowless}
light_source { <3,10,-10> color rgb <0.8,0.8,1>*0.5 shadowless}

box {<-20,-1.3,-20>,<5,20,5> 
      pigment {SkyBlue}   // Yellow
      rotate <0,5, 0>  
        }
//--------------------------------
union{
poly {3, <1., 0, 1., 1., 1., 0, 0, 0, 2., -1., 0, -1., 1., 0, 0, 0, 0, 0, 1., -1.>

  texture{
     /* pigment{ granite color_map{[0.0 rgb<1,1,0.7>][1.0 rgb<0.5,0.3,0>]}
             scale 0.08   } */     
     T_Silver_3C  
                    
  finish { ambient 0.4 diffuse 0.4 reflection 0.1
           specular 0.5 roughness 0.008 }
  } 
}
#declare r=0.015 ;
#declare b=10; 
union{
      cylinder{<-.794e-3*b-1.,1.00*b-.159e-2,-.794e-3*b>,<.794e-3*b-1.,-1.00*b-.159e-2,.794e-3*b>,r}
cylinder{<-.231*b-.887,.940*b-.462,-.260*b>,<.231*b-.887,-.940*b-.462,.260*b>,r}
cylinder{<-.361*b-.574,.694*b-.820,-.629*b>,<.361*b-.574,-.694*b-.820,.629*b>,r}
cylinder{<-.116*b-.118,.136*b-.994,-.980*b>,<.116*b-.118,-.136*b-.994,.980*b>,r}
cylinder{<.333*b+.36,-.224*b-.934,-.917*b>,<-.333*b+.36,.224*b-.934,.917*b>,r}
cylinder{<.589*b+.75,-.221*b-.660,-.781*b>,<-.589*b+.75,.221*b-.660,.781*b>,r}
cylinder{<.696*b+.97,-.839e-1*b-.240,-.714*b>,<-.696*b+.97,.839e-1*b-.240,.714*b>,r}
cylinder{<.696*b+.97,.839e-1*b+.240,-.714*b>,<-.696*b+.97,-.839e-1*b+.240,.714*b>,r}
cylinder{<.589*b+.75,.221*b+.660,-.781*b>,<-.589*b+.75,-.221*b+.660,.781*b>,r}
cylinder{<.333*b+.36,.224*b+.934,-.917*b>,<-.333*b+.36,-.224*b+.934,.917*b>,r}
cylinder{<-.116*b-.118,-.136*b+.994,-.980*b>,<.116*b-.118,.136*b+.994,.980*b>,r}
cylinder{<-.361*b-.574,-.694*b+.820,-.629*b>,<.361*b-.574,.694*b+.820,.629*b>,r}
cylinder{<-.231*b-.887,-.940*b+.462,-.260*b>,<.231*b-.887,.940*b+.462,.260*b>,r}



        pigment{ Red }
}
union{
   cylinder{<0,-b,1>,<0,b,1>,2*r  }// droite
   torus{1,2*r rotate 90*x }  
   pigment { rgb <0,0.5,0>}
   }
  // axes ----------------------
 union{          
   #declare g=1.5 ;
   #declare r1=0.03;
  
  #declare k=4;// longueur fleche=k*r1
  #declare co=1.8;// rayon base=co*r1
cylinder{ <-g/2,0,0>,<g,0,0>,r1 }
  cone{ <g,0,0>,co*r1,<g+k*r1,0,0>,0  }
  
  cylinder{ <0,-g/2,0>,<0,g,0>,r1  }
  cone{ <0,g,0>,co*r1,<0,g+k*r1,0>,0  }
  
  cylinder{<0,0,-g/2>,<0,0,g>,r1  }
  cone{ <0,0,g>,co*r1,<0,0,g+k*r1>,0 } 
  pigment { Yellow transmit 0.3}
   
}
  //-
    clipped_by { sphere{<0,0.,1>, 4 } }
  bounded_by { clipped_by }
  scale 0.35
  rotate <-90,90,20>
  translate <0,-0.15,0>
}

text {	ttf "times.ttf" "AE"
        0.5,0 
        pigment { Cyan*1.2 }
        scale 0.08
        rotate <0,40,0> 
        translate <1.9,-1.3,-0.4> }