Unable to load a valid USD file from the local filesystem using the Usd and omni.usd APIs

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1

Successfully load the USD file using the USD Composer’s “File” menu.

However, when trying to load the same file using the API, it doesn’t work.

import omni.usd  
  
usd_file_path = r"C:\Users\uname\Downloads\scene.usd"  
stage = omni.usd.get_context().get_stage()  
stage.Load(usd_file_path)  
  


from pxr import Usd  
usd_file_path = r"C:\Users\uname\Downloads\scene.usd"  
stage = Usd.Stage.Open(usd_file_path)

Console Log

2024-09-21 20:22:36 [3,233,094ms] [Warning] [omni.usd] Warning: in SdfPath at line 81 of C:\g\97199581\USD\pxr\usd\sdf\path.cpp – Ill-formed SdfPath <C:\Users\uname\Downloads\scene.usd>: syntax error

Any support/suggestion much appreciated!

2

Hi @abhishek.chitwar
Welcome to the Forums :)
You will want to structure your file path without the r and add double backslashes.
Example:

from pxr import Usd  
usd_file_path = "C:\\Users\\uname\\Downloads\\scene.usd"  
Usd.Stage.Open(usd_file_path)

Let me know if this resolves your issue!

2 Likes
3

Hi AshleyG_NVIDIA,

There is still an issue with the solution provided. I am not sure why it’s not working as expected.

I managed to make it work using following method:

usd_file_path = r"C:\Users\uname\Downloads\scene.usd"
context = omni.usd.get_context()
context.open_stage(usd_file_path)

Please let me know your views.

Thanks!
Abhishek

4

Hi there,
Sorry you are having issues. I am not really understanding where the “r” comes from. That should not be required. Are you reading that somewhere in our docs ?

5

Hi Richard!

I am just passing path as raw string. Since it’s not able to recognize the path, or I need to escape it “\” to get recognize. Since it’s got failed, I tried this and it worked.

6

Well good, as long as it works for you. Great !

1 Like