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Problems with UV unwrapping in Substance Painter 3D.

New Here ,
Jun 25, 2024 Jun 25, 2024

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Hello! There is a problem. There are no problems when creating UV mapping in Blender, I checked. On the right in the picture you can see that the UV scan of the light gray contour is incorrect and blurry. I redid the UV unwrapping in Blender several times, turned off the Auto-Unwrap checkbox...
I will be glad to solve the problem

Снимок экрана 2024-06-24 193136.pngСнимок экрана 2024-06-24 195008.png

Bug Unresolved
TOPICS
Import & Export , UV Tiles

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4 Comments
Adobe Employee ,
Jun 25, 2024 Jun 25, 2024

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Hi @Sveta29656096ousl,

 

Thank you for the message.

 

Do you have by any chance overlapping UVs? Can you show us a screenshot of the entire UV map?

 

Let me know.

 

Cyril Dellenbach (Micro) | QA Support Artist | Adobe

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New Here ,
Jun 30, 2024 Jun 30, 2024

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No, they're not. But I but I found differences between the UVs from Blender and Substance. Here are the last maps.Снимок экрана 2024-06-30 201805.pngСнимок экрана 2024-06-30 201840.png

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New Here ,
Jul 02, 2024 Jul 02, 2024

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I send the message, did it reach you?

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Adobe Employee ,
Jul 03, 2024 Jul 03, 2024

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I did, sorry for the time in response. We can see in your first picture that the UVs are already stretched, therefore the texturing will be stretched too.

 

Снимок экрана 2024-06-24 193136.png

 

You need to make sure the UVs respect the 3D object proportions in order to avoid stretching. In addition, considering how crowded the UV map looks, I advise you to use a UDIM workflow. You'll avoid too small UV islands, and with that artifacts.

 

Regards,

Cyril Dellenbach (Micro) | QA Support Artist | Adobe

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