(L) [2012/05/17] [ost
by Dade] [NVIDIA Kepler real-time raytracing demo at GTC 2012] Wayback!Interesting: [LINK http://www.youtube.com/watch?feature=player_embedded&hl=en&v=h5mRRElXy-w&gl=US]
It seems old-school Whitted ray tracing but the first part is still quite impressive (I don't have the audio output on this PC so may be the speaker offer some more technical details on what he is showing).