Particle effects swirl in Hawken PhysX demo
 

Nvidia has been pushing its proprietary PhysX technology for what seems like forever. The list of supported games remains relatively thin, with only a handful of recent titles taking advantage of the physics API. The most recent among those is Hawken, a free-to-play shooter that looks a lot like a Mechwarrior deathmatch. Nvidia has posted a video highlighting the game's PhysX effects, and some of them look pretty slick.
http://techreport.com/news/24291/par...ken-physx-demo