Unreal Engine Controller position and blend shapes (VR)

[NathanNight]

Sorry for my english, this is not my native language.

Has anyone worked with VR with ue4? (blueprints)

I have no idea how to interact with the breast, as, for example, in kanojoVR
(breast animation should depend on the controller position,
but when the controller moves beyond the extreme position,
it must first return to this point so that the animation turn back-
how to make it work immediately when changing position?)

Thanks in advance, I hope google translator let me down..