Animation shakes after import

[MAVEO-Juice]

Hello guys,

We currently have a model rigged with some cables, that I rigged and animated in C4D.

The rig is basicly a spline that is controlled by NULLs, on that Spline I attach some Joints with Geometry via the IK to Spline Tag.

When we import this animation in Unity tho, it starts shaking and has a lot of vibrations. As seen in this video.

We already tried all the keyframe options that Unity offers, I baked the joints in Cinema but nothing seems to fix this issue. Has anyone encountered some sort of simular problem?

[sacb0y]

Could be multiple things, in your import settings there compression settings like reduce keyframes and resample curves.

These will likely add noise to some animations.

[MAVEO-Juice]

If we enable those options the animation is even worse. The video I posted has both options disabled and alle frames are baked within Cinema4D. In Cinema the animation doesnt shake at all.

[sacb0y]

Oh i was suggesting turning them off.

You might have compression settings in the export settings then. I know blender has this and I always have to disable it.

[MAVEO-Juice]

What is the common way of rigging this?

When I use a Sweep and rig the spline in C4D, we have to export it in FBX, so the animation wont export because FBX doesnt do PLA. When I use bones on the same rig, it does create those jiggling animation errors.

Am I on the wrong path here? Would it be better to do the cables in Unity directly? This is some part of the rig inside C4D

[sacb0y]

Yes, unity does have spline tools. That might be prefered here. Otherwise bones or Alembic (Mesh animation) is the only options.

Alembic can work, but might be costly performance wise and I don’t think it scales with FPS.

Using native splines might be ideal.

Unity Splines - Unity Engine - Unity Discussions