Question Root motion from additive layer not applied

Hi

I've got a model that is controlled using animations and root motion. I accumulate the deltaPosition and deltaRotation in OnAnimatorMove() and apply it to a Rigidbody in FixedUpdate.

Everything works fine, until I add animation layers. Then the additive layer doesn't apply to deltaPosition and deltaRotation.

My setup uses transform animations created in unity and my model does not have bones, so I can't create a mask.

My test setup is this:
Layer 0: Simple looping animation that applies +5 to Z axis position.
Layer 1: Simple looping animation that applies +30 to X axis rotation.

I've spend two days trying to figure out why I can only have 1 layer affecting the delta values. If I remove the OnAnimatorMove() and check ApplyRootMotion, I get the same problem, but see it visually instead of in Debug, as I get either rotation or movement, but not both.

Does anyone know what the problem might be?

I'm using Unity Unity v2021.1.5f1

 

Yes I have this problem too. Driving me nuts. Trying to add a layer that rotates the character using animation (left / right turn). This layer is added on top of the regular character control. Doesn't work with Additive.

 

Well... straight from Unity... Additive layers do not apply root motion: https://issuetracker.unity3d.com/is...when-root-motion-is-applied-on-additive-layer

 

Well at least that answers it.