// Update is called once per frame
void Update()
{
Matrix4x4 P = mop.GetObjectPose(ballRend);
Matrix4x4 T = tiling.TileContaining(P);
mop.SetObjectPose(ballRend, T.inverse * P);
//col3 = wrap (col3) + initial_diff;
//mop.SetObjectPosition(ballRend, col3);
}