Example 3D. Use the cursor-keys, and uv qw rt s

cursor-keys: inc/dec cameraX, cameraZ
comma, period: inc/dec cameraY
uv: inc/dec phi, to rotate a wall
qw: add/subtract 5 degrees to/from cameraTheta
rt: toggle RotateX, RotateZ variables
s: Simulate the object rotating around

-Michael Weeks, mweeks [at] cs.gsu.edu