Isaacsim4.5 urdf import don‘t work

Omniverse Isaac Sim
,
1

Isaac Sim Version

4.5.0

“isaacsim.asset.importer.urdf” = { version = “2.3.11” }

Operating System

Ubuntu 20.04

GPU Information

| NVIDIA-SMI 535.183.01 Driver Version: 535.183.01 CUDA Version: 12.2 |
|-----------------------------------------±---------------------±---------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+======================+======================|
| 0 NVIDIA GeForce RTX 3090 Off | 00000000:01:00.0 On | N/A |
| 32% 38C P8 46W / 350W | 5035MiB / 24576MiB | 9% Default |
| | | N/A |
±----------------------------------------±---------------------±---------------------

Topic Description

Detailed Description

If the URDF or XML file contains STL or OBJ files, the urdf import or mjcf import won’t work, and the log shows that the extension gets stuck when processing 3D files.

Error Messages

2025-02-26 07:59:01 [58,787ms] [Info] [isaacsim.asset.importer.urdf] Found Mesh At: /home/danniel/limx_ws_mujoco/pointfoot-mujoco-sim/robot-description/pointfoot/PF_TRON1A/urdf/…/new_meshes/abad_L_Link.STL (/visuals/abad_L_Link/abad_L_Link)
2025-02-26 07:59:01 [58,787ms] [Info] [isaacsim.asset.importer.urdf] Importing Mesh /meshes/abad_L_Link /home/danniel/limx_ws_mujoco/pointfoot-mujoco-sim/robot-description/pointfoot/PF_TRON1A/urdf/…/new_meshes/abad_L_Link.STL
(/home/danniel/limx_ws_mujoco/pointfoot-mujoco-sim/robot-description/pointfoot/PF_TRON1A/new_meshes/abad_L_Link.STL)
2025-02-26 07:59:01 [58,788ms] [Info] [isaacsim.asset.importer.urdf] Starting to import asset with Assimp importer.

Screenshots or Videos

isaacsim app gets stuck

image
image668×217 68.4 KB

Additional Information

What I’ve Tried

I’ve used both custom and official XML and URDF files, but the result is the same. It seems that there are issues with the Isaac Sim 4.5 urdf or mjcf import extension when processing 3D modeling files.

the official urdf files didn’t work either：
Isaac-Sim Full/4.5/exts/3/isaacsim.asset.importer.urdf-2.3.11+106.5.0.lx64.r.cp310/data/urdf/robots/carter/urdf/carter.urdf

Additional Context

If you’ve successfully imported URDF or XML files containing 3D files such as .obj or .STL in Isaac Sim 4.5, please let me know. I’ve tried different machines and reduced the number of faces of the 3D models, but none of these efforts have worked.

2

I’ve successfully imported the URDF file containing OBJ meshes using Isaac Sim 4.5.0. FYI.

For reference, I found a similar topic posted by another user:

4

Thank you for your answer, but my problem still remains.

5

Hi, I also imported a new URDF today with Isaac Sim 4.5. I can also check the urdf in my laptop and see if I can convert to USD for you. Let me know :)

1 Like
6

Please try running Isaac Sim with a fresh config by using the --reset-user flag, which worked for a developer as mentioned in Isaac Sim 4.5.0 not responding at URDF Import - #3 by ar.avishekdas.

2 Likes
9

Thanks a lot ! It works now！

1 Like
10

Thank you so much for your help! I can import it normally now. Many thanks!

11

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