Use your fingers or mouse to control the model
(hold shift key or use mouse wheel to zoom it).
Canvas is matched to your browser window.
You can change N but for large values this script is not very stable
(in FireFox and Chrome).
Bump mapping. This example is not very smooth because 8-bit per color
texture is not enough to store accurate normals. This
accurate demo saves normal component in two
WebGL Demosupdated 10 August 2010