README for the Lighting 1 Program

This program demonstrates the materials properties of OpenGL and their
effect when light shines on the surfaces. The 4x4 matrix of spheres run
the gamut of ambient, diffuse, shinines, and specular properties. The only
one not demonstrated is emission. The axis arrows indicate increasing values.

The scene is animated, so try the following keys:
HOME: Resets viewpoint to initial values (animation keeps going)
SHIFT-HOME: reset viewpoint & clear movement vectors
5: Clear movement vectors
Up/Down Arrows: change velocity in Z (if shifted, change rotation)
Left/Right Arrows: change velocity in X (if shifted, change rotation)
Plus/Minus: change velocity in Y (if shifted, change rotation)
ESC: Exit animation
