Interactive cloth, jittering when attached to a moving object

My guess would be that you have a mix of physical and non-physical movement. Cloth, I believe, moves physically, meaning it uses the PhysX engine to calculate its movement based on velocities, forces, etc. If you are moving the cube non-physically (i.e. by changing the transform directly), that movement happens instantaneously, once per frame, outside of the physics engine. In other words, the cube doesn't actually move smoothly from one position to the next as it appears to you, it moves discretely.

If that is the case, it explains why your cloth is jittering. Try making the cube a physical object by adding a rigidbody and moving it physically rather than by transform.

Try moving your object via LateUpdate() instead of Update().

Physics objects synchronize to LateUpdate(), so it should solve the problem. However I'm knee-deep in my own project right now so I can't test that theory myself at the moment.

Thanks guys, that sounds like it makes sense, although the solutions I tried didn't fix it. I changed the movement script to LateUpdate with no difference.

The movement is applied to a parent object "player" which contains the cloth, the cube and the attachment colliders. I tried adding Rigidbody to the "player" object, but the whole thing freaked out when I ran it. The cube itself shouldn't affect it, I can remove it alltogether so the "player" only contains the cloth & colliders but the jitter is still there, just not as visually pronounced without something smooth right next to it.

thanks

Hey, I was wondering if someone has already found solution to this problem. I’ve tried simply synchronizing movement of the cloth and the object it is attached to, which seems to be solving the jittering part of the problem, but it does add another one.

The thing is, when I move the object with a cloth not attached to it by synching with it, the end of the cloth attached to the object seems to be sliding on the surface, which becomes even worse when the fps drops.

In fact, the whole thing seems to be dependent on frame rate, as when the latter drops, the cloth slides further away.

Anyway, could you find a real answer to this question? If you did, I would really appreciate if you gave it to me.,