// http://xahlee.org/3d/index.html #include "colors.inc" difference { box { -1, 1 pigment { Red } } box { 0, 1 pigment { Blue } scale 1.0001} } camera { location <5,5,-2> look_at 0 angle 36 } light_source { <500, 500, -1000> White } plane { y, -4 pigment { checker Green White } }