Autodesk Softimage is well known 3D modeling, animation, rendering, and compositing solution. Rigid body physics system in Softimage has moved to PhysX SDK with version 5.0, and old physics core wasn’t upgraded since than. However, according to latest press-release, upcoming Softimage 2011 will finally include updated PhysX components
PhysX 2.8.3 — Helps artists create meshless deformations in ICE with the latest NVIDIA PhysX rigid body library. Provides new support for springs and dampers. New library also offers accelerated performance when using the optional addition of an NVIDIA CUDA enabled graphics processing unit (GPU).
Interesting detail – since hardware acceleration support is promised with clear definition of PhysX SDK as “rigid body” solution, it seems that GPU rigid body solver is going to be used.
Update: confirmed via Softimage wiki – “Support for CUDA acceleration for PhysX Rigid Body Dynamics (including ICE)”
Update #2: official press-release from Nvidia