I think this option is used to select the collision side, which side::A Collision with side A but not B, which side::AB means can collision with both side A and B.
but when i set this option, nothing happend. you can always impact wiht both side.
imstkNew<PbdObjectPickingPair> pbdliverpair(PBDmodel, sphere, CollisionDetection::Type::PointSetToSphere); pbdpickinghandler is what i want.
i see in imstkpbdobjectpickingpair.cpp line 53. the pbdpickingCH side is set to A. but now i can impact the pbd model both ouside and inside. and i don’t want to impact wiht inside side.