02-07-2021, 10:40 AM
(This post was last modified: 02-07-2021, 10:44 AM by josemendez.)
(02-07-2021, 10:01 AM)alex798 Wrote: Hello,
Sorry for the dumb question(it is probably explained somewhere in manual), but how after rope stretch and release make it compress to length less forcefull?- it shoots like rubber and moves chaotically...
P.S. I understand that it has something to do with compliance, but with comp>0 it doesn't return fully to needed lenght...
Why is your rope being stretched in the first place? It should not, unless you're trying to simulate a rubber band.
You can think of a rope as an infinitely stiff rubber band: if you stretch it past its rest length, it will *immediately* go back to its rest length.
After you stretch a rope, it will try to get back to its rest length as fast a possible -often in a single frame-, since overstretching violates the basic rope distance constraint: particles must be at a fixed distance from each other.
Compliance makes the rope easier to stretch (more of an actual rubber band), however under gravity it will appear longer (since gravity is an external, ever-present acceleration, permanently stretching the rope).
What you're looking for is either internal damping or plasticity. Internal damping won't help unless compliance is larger than zero which makes it useless in your case. Plasticity is not yet available for distance constraints.