I use 2013, there is a new compound solution or alternative?
Yes, from the Softimage 2013 manual
PhysX Dynamics and Bullet Physics Engineshttp://download.autodesk.com/global/docs/softimage2013/en_us/userguide/index.html?url=files/ICE_rigidbody_ICERigidBodyDynamics.htm,topicNumber=d30e285743
There are two ICE nodes in an ICE tree that makes all the rigid body action happen: Simulate Rigid Bodies and Simulate Bullet Rigid Bodies. Either of these nodes allows particles to collide with each other or with obstacles as rigid bodies.
Each node uses a different physics engines for simulating rigid bodies:
- The Simulate Rigid Bodies Node uses the PhysX dynamics engine for creating ICE rigid bodies. The PhysX engine is the same one that is used for creating non-ICE rigid bodies - see Rigid Bodies. Due to PhysX limitations, you cannot have more than 60,000 rigid bodies in a simulation environment.
- The Simulate Bullet Rigid Bodies node uses the Bullet physics engine for creating ICE rigid bodies. This allows you to use the actual shape of obstacle objects and convex hulls for rigid body particles, among other things.