Function CreateTrimesh(mesh,mass#=0)
If mesh <> 0
  Local VBs = xGetMeshVB(mesh)
  Local VB_sizes = xGetMeshVBSize(mesh)
  Local IBs = xGetMeshIB(mesh )
  Local IB_sizes=xGetMeshIBSize(mesh)
  Local Trimesh=pxCreateTriMesh(VBs, IBs, VB_sizes, IB_sizes, mass)
  Return Trimesh
End If
End Function