Hey everyone. I'm trying to make a complete muscle & tissue simulation and have been struggling with a weird issue for quite some time. I'm on the skin stage and it mostly works, but during some movements the skin gets excessive rugosity/crinkliness.
I've attached the screenshots. When movement slows down it goes somewhat back to normal. The movements aren't particularly fast, but I've tried to increase substeps, play with constraint/smoothing iterations and almost all options from the skin properties, starting from the bend stiffness/damping as told in the skin properties node info.

I'd be happy to hear any suggestions or hear about a similar problem. Thanks!

I'm not sure it has a lot to do with speed of movement. That looks more like an initial setup issue where the skin layer is either too far from the tissue it's connected to, or, maybe it's intersecting with the tissue (too close?). You might be able to resolve it with the SkinProperties>Shrinkage parameters, but a hip file example would be helpful to see what's going on.

johm
I'm not sure it has a lot to do with speed of movement. That looks more like an initial setup issue where the skin layer is either too far from the tissue it's connected to, or, maybe it's intersecting with the tissue (too close?). You might be able to resolve it with the SkinProperties>Shrinkage parameters, but a hip file example would be helpful to see what's going on.

Hello. Sorry for the late reply. I've made a test scene where the issue is recreated. It's a test movement so it has a few problems, but it doesn't look like it should cause that kind of issue. The issue is most noticeable at frame 101.
With some settings from a skin properties, I managed to make it less noticeable, but never managed to get rid of it.
Thanks for any insights!

Here's the link: https://www.dropbox.com/scl/fo/qybn5rvg44jucfr6z1b7w/AEksWBuJA0SEOWguczPozhk?rlkey=ktxl9xtc3kvjwm6n412ngai98&st=hgy0evsg&dl=0 [www.dropbox.com]