[xor_]

Edit:

New try. This time logging the finger_trace for all 4 rotations separately. And trying to rotate the movement with them.

UR: diagonal from upper left
CW: diagonal from upper right
UD: diagonal from lower right
CCW: diagonal from lower left.

The optical results for UR and UD make sense this way.
For CW and CCW, the optical results are reversed, almost as if the rotation was counterclockwise instead of clockwise.