I think the nVidia real-time ray tracing demo is more impressive: http://www.youtube.com/watch?v=w9SH8xlgzoI&feature=player_embedded http://www.youtube.com/watc

I think the nVidia real-time ray tracing demo is more impressive: http://www.youtube.com/watch?v=w9SH8xlgzoI&feature=player_embedded http://www.youtube.com/watch?v=w9SH8xlgzoI&feature=playe... Primarily because of the distortion of the visuals through the water. This simulation fakes it somewhat, which you can see with the distortion being somewhat blocky.