// by Rafal Maj 'Raf256' http://www.raf256.com/me/ 
// "Borg Cube III" (plastic, L-system) http://www.raf256.com/3d/image/a00124/
// in PovRAY ray-tracer 3.6 beta 1 

light_source{<1,3,7>rgb 5} // strong light

#macro L(V) M(N-1,V,y) #end  // just a short cut

#macro M(N,R,T) // L-system recrusrion  N=depth levels left   R=rotate  T=translate 
  #if(N)
    union{
    M(N-1,0,0)
    L(-y)
    L(x)L(-x)
    L(z)L(-z)
    rotate R*90 translate T scale .5 
    pigment{rgb y}//green
  } 
  #else 
    cone{0 .1y.1} // cone - at deepthest fractal recursion level
  #end 
#end
 
union { M(6,.1,-y/2) translate+z/2 }  // start recursion

global_settings{radiosity{count 999}} // radioisity