UV map export problem

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Hey!
I am working on a project using Solaris and Karma which is a quick render of an animated character. Everything seems fine I have UVs and until the end of my texturing, textures are where they are supposed to be on the UV coordinates. BUT I would like to export an STmap (so I ticked the UV AOV in the karmarendersettings) and I have results of the supposed STMAP gradient from green/yellow/red but that are per face and absolutely not matching the UVs (Screen shot is in the message). I am using a sceneimportall in the stage and using XPU but facing the same problem with CPU rendering.

Is there a way to fix this ?
Thanks a lot for any help!

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UV_problen.png (514.5 KB)

ESMA Lyon, France student.
Houdini 19.5.640, Rocky Linux 8.6
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I think you want to add a custom aov with the source set to 'st' and the source type set to 'primvar'. The 'uv' aov is the parametric coordinate of the hit primitive.
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Thanks for these informations, i put a render var but then i get the st passe that looks good in while rendering in the viewport and viewing the karmarendersettings. But in MPLAY i get just a black screen and when i save to disk its the same just a black passe with a rendervar1.y only.

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01_rendervar_good.png (395.5 KB)
02_nothing_in_file.png (72.5 KB)

ESMA Lyon, France student.
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Thank you so much I changed a parameter I shouldnt and now it works thank you 100000 times!!!
ESMA Lyon, France student.
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i having the same problem , can you explain what you did to soluce?
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jsmack, thank you!

GABU2610
i having the same problem , can you explain what you did to soluce?

In Karma Render Settings LOP node [www.sidefx.com] (transparent lines is because there're two objects and outer object has opacity applied via material):

Edited by AnimGraphLab - 2024年1月21日 08:04:30

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uv-aov-karma.png (330.4 KB)

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