[mechanics proposed] Sphere works better as a btSphereShape.
[mechanics proposed] Sphere works better as a btSphereShape.

As a convex hull, 2 spheres can completely interpenetrate after bouncing.

bremond/siconos,fperignon/siconos,fperignon/siconos,bremond/siconos,radarsat1/siconos,bremond/siconos,siconos/siconos,radarsat1/siconos,fperignon/siconos,siconos/siconos,radarsat1/siconos,bremond/siconos,bremond/siconos,radarsat1/siconos,siconos/siconos,radarsat1/siconos,siconos/siconos,fperignon/siconos,fperignon/siconos