Help Cloth has stretchy behaviour with stiff settings

[josemendez]

Hello,

Just sent it again.

Thank you.

Received your email. Will take a look and get back to you.

[josemendez]

Hi,

In your project there's several sources of jittering, the most obvious one being self-collisions paired with stretching scale < 1: when you reduce stretching scale, particles are pulled closer together.
This causes them to self-collide, leading to a physically impossible to solve situation: distance constraints between particles want them to overlap each other, but self collisions want them not to.

The result is that the solver jitters between both solutions, as it cannot find any solution to both constraints at once (because it doesn't exist). Either set stretching scale to 1, or disable self-collisions.

The other main source of jitter is an insufficient amount of substeps/collision margin. Setting substeps to 6 and collision margin to 0.04 worked well for me.

kind regards,

[Andreia Mendes]

Hello,

I have followed your recommendations and got a result I'm happy with, the jittering disappeared. Thank you!
However, the twists of the cloth on the edges still remains, especially noticeable on the shoulder straps.

   
   
(with Obi instanced particle renderer)

Why is this happening?

Thank you.