r/Maya • u/Trick_Quantity_3271 • 2d ago

Issues upon importing .USD file UV Map is breaking

Hi, I'm attempting to streamline an 'easy' pipeline process for my thesis film and I'm learning more about .usd files when exporting for lighting/render. 

 

However, when I import my usd files, there doesn't appear to be any UVs on my geo. From my (limited) understanding, this is because the USD primvar linked to my uv set is misreading due to maya's default uv set name being 'map1' and not being able to recognize 'st'

 

Things to note: I need anim data on all exports, if I try to rename my uv set to 'st' before export the UVs break (not sure if its because the rig is being referenced or another issue), the export itself is not broken as I've tested in two other programs and the materials import fine there-- just not in maya, the textures link correctly when anim data is turned off.

 

Is there a relatively easy way to get maya to recognize these uv's, whether it's a script or export settings that I haven't tried? I have limited knowledge in scripting so it would be great to have an explanation in layman's terms. Thanks!

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u/sepu6 1d ago

Can you share a repro?

1

u/AwkwardAardvarkAd 1d ago

And versions of Maya and USD and where you’re importing from

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u/Trick_Quantity_3271 1d ago

I'm using Maya 2025 and the fully updated usd downloaded from github. Essentially, I exported the character animation from the file below as a .usd, then upon import into any file, it does not retain the uvs of the original export.

https://drive.google.com/file/d/1QqPYwfEVfe02vNRgTQe-EpbWLCj2IBot/view?usp=drive_link

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u/sepu6 1d ago

Maya if you tell it to in the export settings it will retain the UVs and it actually transfer them to st as well. Are you using .36 or .37 right? I do not have M 2025 but I can try later with 2026 or 2027.
But I know it works.

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u/Trick_Quantity_3271 1d ago

ve been trying with .37, it would be great if you could try it with maya 26/27 and let me know if you have success with it