camera{blur_samples 999translate-z*10rotate 45aperture.03}global_settings{radiosity{count 999}#macro A(T,C)sphere{T 1pigment{rgb 1+C}}#end}A(x-y,z)A(z-1x)A(x+y,x)A(-x+y,z)union{A(-x*8z+x)torus{8 .3}pigment{granite}finish{ambient 7}rotate 85}