You can try to append a point wrangle node after PolyFrame SOP and compute the cross product like this: v@N = cross(v@tangentu, v@N); It should give you what you want..
rpopovici You can try to append a point wrangle node after PolyFrame SOP and compute the cross product like this: v@N = cross(v@tangentu, v@N); It should give you what you want..