light_source{x,rgb 1}isosurface{function{x*x+y*y+z*z+sin(4*x)+sin(4*y)+sin(4*z)-1}contained_by{sphere{0,4}}max_gradient 25 pigment{color rgb<0.8,0.8,1>}normal{bumps 1}finish{reflection 1 ambient.1 diffuse.1}rotate 45*z rotate -126*x translate 3*z}