Check out this informative talk on some of the tech behind Guerrilla Game's PS4 demo. I love GDC for these talks (or I'm guessing this is from GDC). [ame=" http://www.youtube.com/watch?v=_29M8F-sRsU&list=WL1F09E7B6E3305CE2"]Digital Dragons - Micha? Drobot (Guerrilla Games) - Killzone: Shadow Fall - Lighting - YouTube[/ame]