Nfs shift uses hardware acceleration !!!

[Hell Hound]

No, I didn't think you're harsh at all.

Force Feedback is a very complex subject and is not by any means applied only in computer games. I'm no expert on that (you got to have an engineering/math degree to be an expert on that) and "interaction" with the virtual enviroment is only part of it. That's why only a handful of games deals properly with it. I suggest a google search with you're interested in that.

Back to PhysX. Virtual tyre/surface interaction isn't and it will never be handled by PhysX. Even if it would, FFB code would work completely independant of it.

Scalable terrain fedelity http://www.bfgtech.com/physx/bfgphysx.html (under features & benefits tab)

surface reaction means what to you ?

what a mess. i can't get rid of the impression that the OP has no clue what he's talking about and how things work at all