public abstract void rayTest( ref btVector3 rayFrom, ref btVector3 rayTo, btBroadphaseRayCallback rayCallback, ref btVector3 aabbMin, ref btVector3 aabbMax );
public virtual void rayTest( ref btVector3 rayFrom, ref btVector3 rayTo, btBroadphaseRayCallback rayCallback ) { rayTest( ref rayFrom, ref rayTo, rayCallback, ref btVector3.Min, ref btVector3.Max ); }