OIT/A-buffer DirectX 11 demo

[Stefan]

OIT/A-buffer demo.
Requires Microsoft Windows 7 (or Vista SP 2) and DirectX 11 graphics hardware.

This demo shows accurate blending of multiple surfaces using per-pixel depth sorting.
Uses DirectCompute 11 for A-buffer technique and stencil routing for K-buffer.

Controls
 
Left mouse:    Click and rotate trackball.
Mouse wheel:   Zoom in/out.
Space:         Switch beetween standard hardware blending, A-buffer blending and K-buffer blending.
Numpad +/-:    Add/decrease number of blended planes (cards).

By default, standard blending without sorting is performed.
GDI text drawing really slow down FPS, so hints are displayed only for 2 seconds.

Author: Victor "Joe" Coda (joescg.blogspot.com)
Jan 11 2010