charactercontroller.lua: (but may be the underlying CharacterComponent?) — characters in swim / swim_idle are juddering

[metaleap]

(As always with issues posted by me: could be Vulkan-only or even worse, Linux-only..)

This isn't a recent issue, rather a longstanding one, but noticed it's not filed here yet, so for completeness here it is.. and I doubt it's just a script bug, and if so then it's engine stuff. First off, the visuals:

rec-2025-01-21_23.48.31.mp4

Could it be the animation system "competes" here with another system also modifying geometry positions? Maybe buoyancy or generally just physics? And maybe due to multithreadedness sometimes the one "wins" and sometimes the other — more complex than that I'm sure, just... maybe sth in that direction..

[turanszkij]

I know this issue, it's a combination of swimming logic in CharacterComponent and framerate. There is no physics engine involved in the swimming, this is different than physics buoyancy.