Can you convert the Geometric Post-process Anti-Aliasing (GPAA) to DX9?
Doesn´t make much sense under DX9 since the technique requires per-edge info.
Saving them in the vertex buffers is quite inefficient.
The alternative is to extranct them at runtime which requires a geo shader and therefore DX10.
Better idea would be to implement FXAA and since it´s a pp only effect and Slin has already experience with this technique it shouldnt be a problem for him at all.
