02-07-2021, 11:10 AM
(02-07-2021, 10:40 AM)josemendez Wrote: 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.
It's stretching because one end should be connected to unmoving objects, and the other to object, which we can freelly pull... Ok, is there some event that rope is stretching or updating amount of stretch?- maybe I could free pullable object on this event- so no stretching occur