+- Obi Official Forum (https://obi.virtualmethodstudio.com/forum)
+-- Forum: Obi Users Category (https://obi.virtualmethodstudio.com/forum/forum-1.html)
+--- Forum: Obi Softbody (https://obi.virtualmethodstudio.com/forum/forum-12.html)
+--- Thread: Skinned softbody jitters when still (/thread-3298.html)
Skinned softbody jitters when still - anduogames - 27-01-2022
Heya!
We're currently facing an issue, where a softbody jitters a lot while being attached to a bone that is not moving.
I followed this tutorial to set everything up: https://www.youtube.com/watch?v=75AQT_Ls8fA
Here's a video (slightly nsfw warning) https://puu.sh/IFn0A/47b6af4ecc.mp4
I've tried to add smoothing to the solver, but it does not seem to change anything at all. Turning on interpolation makes everything into a jumbled mess. This also happens when I turn interpolation on outside of playmode. Is there any obvious mistake I might be doing?
Unity version: 2021.2.8f1
Obi Softbody Version: 6.3
RE: Skinned softbody jitters when still - josemendez - 27-01-2022
(27-01-2022, 08:29 PM)anduogames Wrote: Heya!
We're currently facing an issue, where a softbody jitters a lot while being attached to a bone that is not moving.
I followed this tutorial to set everything up: https://www.youtube.com/watch?v=75AQT_Ls8fA
Here's a video (slightly nsfw warning) https://puu.sh/IFn0A/47b6af4ecc.mp4
I've tried to add smoothing to the solver, but it does not seem to change anything at all. Turning on interpolation makes everything into a jumbled mess. This also happens when I turn interpolation on outside of playmode. Is there any obvious mistake I might be doing?
Unity version: 2021.2.8f1
Obi Softbody Version: 6.3
Hi there!
Is there any collider nearby that the softbody might be colliding against? Looks a lot like what happens when you attach an actor inside a collider: the attachment wants particles to be inside the collider, and the collider wants them to be outside. Since this situation is impossible to solve, the result is a lot of jittering. The solution to this is to use collision filtering to stop the offending particles from colliding with that specific particle.
Let me know how it goes,
RE: Skinned softbody jitters when still - anduogames - 27-01-2022
(27-01-2022, 09:00 PM)josemendez Wrote: Hi there!Thanks so much for the lightning fast response! I checked with t:Collider and t:ObiCollider and deleted the one collider I had on the floor object. Sadly the issue still persists.
Is there any collider nearby that the softbody might be colliding against? Looks a lot like what happens when you attach an actor inside a collider: the attachment wants particles to be inside the collider, and the collider wants them to be outside. Since this situation is impossible to solve, the result is a lot of jittering. The solution to this is to use collision filtering to stop the offending particles from colliding with that specific particle.
Let me know how it goes,
I just noticed some weird normals on the Blueprint. Could these be the culprit? https://puu.sh/IFnRK/e0d33309a9.png
Edit: Removing those points did not fix the issue.
Edit2: Oh my god it was "Constraint Orientation" on the Obi Particle Attachment component.... Turning this on made the issue go away. I can't believe I've not tried this earlier.