There's also HDR in this techdemo. ATI HDR.
Open system.cfg in main folder, edit "r_hdr..." cvars. Play around with the settings to get the best visual result. Also, you can do this while the demo is playing: press tilde key, and change those r_hdr... cvars. Also, try spacebar.
I would recommend r_hdrlevel 1.
The demo looks fantastic w/ HDR.
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