light_source{<1,3,7>rgb 5}#macro L(V)M(N-1,V,y)#end #macro M(N,R,T)#if(N)union{M(N-1,0,0)L(-y)L(x)L(-x)L(z)L(-z)rotate R*90translate T scale.5pigment{rgb y}}#else cone{0 .1y.1}#end #end union{M(6,.1,-y/2)translate+z/2}global_settings{radiosity{count 999}}