Fbx animation don't have joint rotations and translations

Omniverse Isaac Sim
1

Isaac Sim Version

4.5.0
4.2.0
4.1.0
4.0.0
4.5.0
2023.1.1
2023.1.0-hotfix.1
Other (please specify):

Operating System

Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04
Windows 11
Windows 10
Other (please specify):

Topic Description

I used the move.ai extension to download some character animations in fbx format. If I import them in Isaacsim they work properly because if I run the simulation or use the timeline the skeleton moves correctly. My problem is that the SkelAnimation prim don’t have joint rotations and translations attributes, they are empty. Why? Ther is a way to obtain the rotations information?

2

It seems that the animation file is not a conventional character skeleton-based animation. A skeleton animation must have joints and respective joint transformation data.