High Definition Ambient Occlusion (HDAO)
HDAO enabled
High Definition Ambient Occlusion or HDAO is a new ambient occlusion technique we’ll see when AMD DirectX 11 graphics cards will be available. Both screenshots come from AMD DX11 SDK but I don’t know if HDAO is a driver feature (like ambient occlusion in ForceWare) or a post processing shader that exploits new functions. Without HDAO, the demo runs at around 188 FPS (2560×1600) and with HDAO the FPS drops under 20!
HDAO disabled
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HDAO=OFF
The performance is really a lame. Meanwhile, image reality is not boosted much.
The performance test is not performed on highend card since it turns out to be too bandwidth limited.
it really does kill performance
[...] Thisis what it does, you can barely see it. I have it off and almost everyone else has it too. __________________ [...]
I see this feature on battlefield bad company 2 i turned on and i dont see any diference on the frames per second.