Connect Machinima Create and IsaacSim, export

as the title suggest I’m looking in connecting these three components. Specifically, I want to use machinima to animate models and create animation sequences and export those to create/isaacsim.

I was able to use the sequencer quite easily. Then, I’ve exported the USD of the scene. Now several scenarios open up:

  • Create (Windows) I can import the USD, enable the sequencer, and see the animations.
  • Create (Linux) I can import the USD, but only some of the assets are being loaded. I can force-load the other ones by updating the references (even if the paths are absolute to the localhost server). But even if I enable the sequencer only the standard animation is played (not the generated one)
  • IsaacSim (Linux) can import the USD, only some assets loaded, no sequencer available.

How can I solve this?
Is it possible to export the single animation sequence track as an animation USD? In that way I could use that one as “primary animation” of the target.

Any other suggestion will be appreciated (even going through loops like Machinima → Unreal → Isaac)

eventually, would it be possible to change the animation programmatically? let’s say that I have a character in my scene with the default animation (for example walking), and that is looped while my IsaacSim is running and at one point I just change it through python to “sit down” or some other animation. Would this be effective?

This is the error from Create in Ubuntu when I try to create a track in sequencer.

2021-09-23 07:36:30  [Error] [carb.python] Failed to execute a command: SequencerTrackCreateCommand.
  File "/home/ebonetto/.local/share/ov/pkg/create-2021.3.5/exts/omni.kit.window.sequencer-102.1.10+cp37/omni/kit/window/sequencer/scripts/", line 604, in create_audio_track
    commands.execute("SequencerTrackCreateCommand", sequence_path=sequence.GetPrim().GetPath(), track_name=None, track_type="Audio")
  File "/home/ebonetto/.local/share/ov/pkg/create-2021.3.5/kit/extscore/omni.kit.commands/omni/kit/commands/", line 228, in execute
    return omni.kit.undo.execute(command, name, kwargs)
  File "/home/ebonetto/.local/share/ov/pkg/create-2021.3.5/kit/extscore/omni.kit.commands/omni/kit/undo/", line 72, in execute
    result = _execute(command, name, level, history_key)
  File "/home/ebonetto/.local/share/ov/pkg/create-2021.3.5/kit/extscore/omni.kit.commands/omni/kit/undo/", line 312, in _execute
    raise e
  File "/home/ebonetto/.local/share/ov/pkg/create-2021.3.5/kit/extscore/omni.kit.commands/omni/kit/undo/", line 279, in _execute
    result =
  File "/home/ebonetto/.local/share/ov/pkg/create-2021.3.5/exts/omni.kit.sequencer.core-102.1.1+cp37/omni/kit/sequencer/core/scripts/", line 154, in do
    raise ValueError(f"Specified sequence path is not valid: {self._sequence_path}")

 <class 'ValueError'> Specified sequence path is not valid: /World/Sequence_02

Excuse me? Do you solve it? I have the same request as you.

Sadly, no. I guess that some components of machimina/sequencer are available only on windows.