Pbd LineMeshToMeshCCD Handling Cancels Movement
I'm not sure if it's numerically correct or a bug but the current solution in pbdSelfSutureCCD appears to cancel out a lot of side to side movement as if the two lines in contact are frozen in place unaffected by outside things. Could this also be an effect more accentuated in PBD than a second order model?
This can be tested by unfixing the right end of the thread in the pbdSelfSutureCCD example and pulling the thread to the left or right.
Luckily for many use cases this is not important.