Dynamic Bones start acting erratically for no reason

[HavenTheRaccoon]

I don't have any keyframes anywhere on my mesh, but the bones are behaving erratically if I just let the animation run for a few seconds. It was doing this earlier, and completely remaking all the bones didn't seem to help.
The file is here if you need it!

[Greenlaw]

Cute character!

I looked at the project and thought the settings looked bit high, so I dialed them down. Here's how the dynamics look now:



Here are the settings I used...



These values are literally the first and only ones I tried, so definitely try tweaking them to get the result you want. In my Moho Physics video, I describe how I arrive at my numbers. The method helps me quickly test parameters so I understand what they do. I'm using a different Moho dynamics system in the video, but the method works for dialing in settings in any 2D or 3D animation program. The video is here:

Catsketball! Moho Physics, Part 1!

That said, I tend to avoid using dynamics for something like this. I find dynamics settings only work for a certain range of motions, and I may have to use different settings for different animations. That's just too much trouble. And when the settings work, the springiness can look unnatural to me for cloth and hair animations.

I find it easy enough to animate cloth, hair, and tail bone chains using Sketch Bones, to I get exactly the result I want. To see how this works, check out my video on this topic:

Moho Skills! Rig And Animate A Tail!

Hope this helps.

[Greenlaw]

This isn't to say you shouldn't ever use dynamics. When something actually saves me time and gives me the result I'm looking for, I'll use it.

[Greenlaw]

I saw in another topic that you use 13.5, but I recorded the above in 14.3.

So I opened the project in 13.5, and it looks the same.

[HavenTheRaccoon]

I saw in another topic that you use 13.5, but I recorded the above in 14.3.

So I opened the project in 13.5, and it looks the same.

Thanks Greenlaw! It turns out it was actually a weird bug on my end- I copied everything into a new project and it fixed it there as well.

[Greenlaw]

Cool! Glad you got it worked out!