/*équations :
(1-3*x- 3*y-3*z)*(x*y+x*z+y*z)+6*x*y*z)# forme 1
x^2+y^2-x^2*z+y^2*z+z^2-1;# forme 2
 */

#include "colors.inc" 
#include "stones.inc"
#include "metals.inc"
#declare r=0.008 ;
#declare r1=0.02 ;

 camera { orthographic 
          location <-2,0.5,-3> look_at<0,0,0> angle 50 }
 
light_source { <-6,8,-10> color rgb <1,0.95,0.9> 
               area_light  <1,0,0>, <0,0,1>,4, 4
               jitter }
light_source { <5,10,-20> color rgb <1,1,1>*0.7 shadowless}
light_source { <3,10,-10> color rgb <0.8,0.8,1>*0.5 shadowless}

box {<-30,-1.2,-30>,<3,20,2> 
      pigment {SkyBlue*1.2}
      rotate <0,0, 0>  
        }
//--------------------------------
/* */
union{
union{cylinder{<0.,4.33333,-4.>,<0.,-3.66667,4.>,r}
      cylinder{<-4.,4.3333,0.>,<4.,-3.666667,0.>,r}
      cylinder{<4.33333,0.,-4.>,<-3.666667,0.,4.>,r}
 pigment{ Blue*1.5 }
} 
union{
cylinder{<-4.,4.,-.3333333>,<4.,-4.,-.333333>,r}
cylinder{<-.333333,4.,-4.>,<-.333333,-4.,4.>,r} 
cylinder{<4.,-.333333,-4.>,<-4.,-.333333,4.>,r}
 pigment{ Red*1.2 }
} 
union{cylinder{<0.,0.,-4.>,<0.,0.,4.>,r}
    cylinder{<0.,-4.,0.>,<0.,4.,0.>,r}
cylinder{<-4.,0.,0.>,<4.,0.,0.>,r}
 pigment{ Green*1.2 }
 
}
union{
sphere{<1/3, 0, 0>,r1 }
sphere{ <0, 0, 0>,r1 }
sphere{ <0, 1/3, 0>,r1 } //

sphere{ <0, 0, 1/3>,r1 }
        pigment {Yellow}}
poly {3,<0,-3,-3,0,-3,-3,1,-3,1,0,0,-3,0,-3,1,0,0,0,0,0>

  texture{
     pigment{ granite color_map{[0.0 rgb<1,1,0.7>][1.0 rgb<0.5,0.3,0>]}
               scale 0.06 
            }
     finish { ambient 0.4 diffuse 0.3 specular 0.5 roughness 0.01  }
 }
}
  clipped_by { sphere{ <0.2,0.2,0.2>,1.2} }
  bounded_by { clipped_by }
  rotate <-30,60,41.5>
  translate <0.8,-0.35,1>
}
 
   
text {	ttf "times.ttf" "AE"
        0.5,0 
        pigment { White*1.3 }
        scale 0.08
        rotate <0,40,0> 
        translate <1.15,-1.15,-0.6> }