All this reminds me of Paul Heckbert's ray tracer written on the back of his business card: http://www.cs.cmu.edu/~ph/src/minray/minray.card.c http://www.cs.cmu

All this reminds me of Paul Heckbert's ray tracer written on the back of his business card: http://www.cs.cmu.edu/~ph/src/minray/minray.card.c http://www.cs.cmu.edu/~ph/src/minray/minray.card.c