Source...We have seen a presentation where Nvidia claims that Mr. Erwin Coumans, the creator of Bullet Physics Engine, said that he developed Bullet physics on Geforce cards. The bad thing for ATI is that they are betting on this open standard physics tech as the one that they want to accelerate on their GPUs.
"ATI’s Bullet GPU acceleration via Open CL will work with any compliant drivers, we use NVIDIA Geforce cards for our development and even use code from their OpenCL SDK, they are a great technology partner. “ said Erwin.
This means that Bullet physics is being developed on Nvidia Geforce cards even though ATI is supposed to get driver and hardware acceleration for Bullet Physics. With such a statement we comes to question whether ATI has any kind of OpenCL driver that it can push for its own Physics. Even if they do, Nvidia is far ahead with PhysX and Intel won’t let them accelerate Havok, as this is a good task for Larrabee, whenever that comes.
To spice things up, Bullet (AMD/ ATI supported) physics is listing that PhysX with 26.8 percent is the most popular physics library, at least according to Gamedeveloper magazine. Intel’s Havok is second with saucy 22.7 percent and Bullet is third with 10.4 percent. The AMD supported API is clearly behind the competition, but it's still better than Open Dynamics Engine (ODE) that has 4.1 percent of the market.