Created: Fri Nov 25 14:33:29 CET 2011

 * Based on sample code from the OpenGL programming guide
 *      by Woo, Neider, Davis.  Addison-Wesley.
 *
 * Author: Samuel R. Buss
 *
 * Software accompanying the book
 *      3D Computer Graphics: A Mathematical Introduction with OpenGL,
 *      by S. Buss, Cambridge University Press, 2003.
 *

2011-11-25 - Some minor modifications and additions
Geoff R. McLane - reports-at-geoffair-dot-info

