There seems to be an issue with animBP spring controller and global translations of character. Im using it to add breast physics to my character. Its already behaving much much nicer than the physicsAsset. So what I do is add spring controller to those joints instead. But the problem is that when the character is moving, or standing on something that moves, the spring bones start to jitter and glitch very badly. When walking or running it isnt that much noticeable, tho its still there, but in this case (see video) its really obvious that something isnt been calculated right. I tried setting substepping, but that didnt affect it at all.
Here’s a link to a youtube video I made showing the issue and talking a bit about it.
‘v=’ link:
Any Ideas why this is happening and how to prevent it? Id also like some more in-depth documentation about nodes like the spring controller, maybe an api doc with technical data and physics/math insight?
just tried it, doesnt affect anything if I do that… I thought it would then have the bones inherit some phat stats and have the substepping affect their spring controller influence. but no, nothing changed.
Im afraid the spring controller node is just not perfectly implemented… just hope they will look into my bug report on answersHub and improve the node behavior.
I made alot off testt and i can tell you its bugged at 4.10.
but i tested with mine settings. I cant see any jittering and bug . can you try this settings too ?
Breast_end same as yours
breast_upper 's are
stiffness 220
damping 4.75
error reset 256
and max dispalcement 5
Edit: i remember you. i am fan of your rigs( ͡° ͜ʖ ͡° ) let me know if you get it fixed
hey man, thanks for testing.
Just made a quick test in 4.9.2 and its also jittering.
You are using my setup then I assume?
Just tested your settings, looks slightly different, but the jitter didnt dissapear. How are you testing it? did you put your character on a moving platform? Thats when you can clearly see it. Have the platform move at about 75% of your characters default running speed. For anyone else to test: I just made a 4.9 test using the TPP template and just adding a spring controller with my settings to the head bone. works well enough to test.
If you guys face the same type of behavior, would be cool if you cold add in your words to my answersHub ticket so the people from epic can actually look at it.
PS: haha nice thanks, always cool to meet a fella from youtube
As far as I know the phat works entirely detached from a spring controller so there shouldnt be any correlation. Apart from the fact that phat will override spring controller since it operates further down the chain of events.
