PhysicsEngines

There are several physics engines available for use in OpenSim. Currently, they are "basicphysics", "OpenDynamicsEngine", "RealPhysX" & "bulletx". The plugin 'basicphysics' is the default and can be seen in the OpenSim.ini file.

When starting OpenSim in either Windows or Linux, one can add "-physics=OpenDynamicsEngine" to run the OpenDynamicsEngine instead of basicphysics.

When starting OpenSim in Windows, one can add "-physics-RealPhysX" if one has the appropriate DLL's which are not shipped with OpenSim due to EULA constraints.

To conclude. basicphysics & OpenDynamicsEngine both are appropriate for Linux and in addition, RealPhysX is appropriate as an option for Windows if the supporting DLL's are available.