Cg 3.0 Bezier Patch Tessellation Example

Draws a 3D Bezier patch.
Requires support for gp5tcp and gp5tep tessellation profiles.
Inner and edge tessellation can be adjusted with +-[]{} keys.
Animation can be toggled with the space key.
Filled/wireframe mode can be toggled with the f key.
GPU/CPU evaluation can be toggled with the t key.
Control points can be selected with p, and translated with the arrow keys.