#include "colors.inc" light_source { <5,50,-50> color White } light_source { <5,-50,-50> color White } camera { // location <0,10,-30> location <0,-10,30> look_at <0,0,0> } background { color White } difference { plane { y, 0 pigment { checker color Green, color Blue scale 2 } } cylinder { <0,-5, 0>,<0, 5, 0>, 15 pigment { checker color Red, color Yellow } } }