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Strange Lines Appearing on Geometry

Community Beginner ,
Mar 13, 2024 Mar 13, 2024

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I recently created a mesh in Blender of a cuff bracelet and imported it into Substance Painter. The mesh looks fine and smooth in Blender, but inside Substance Painter, the mesh is broken up by a series of fine lines across its surface (please see screen shot.) These lines do not correspond to the edges of the geometry. 

 

Does anyone have any idea what might cause this, and how to make the lines go away? My only guess is that it might have something to do with the subdivision settings in Blender, but I’m very new to the program so I don’t exactly know where to begin troubleshooting. 

 

Any help solving this mystery would be greatly appreciated.

 

strange_lines.png

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Discussion , Import & Export

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correct answers 1 Correct answer

Adobe Employee , Mar 18, 2024 Mar 18, 2024

Hi @mk1837,

 

You simply forgot to smooth your normals before exporting the object from Blender. Select your mesh, RMB and Shade smooth.

 

You can now reimport the 3D model in Painter, and rebake the mesh maps. The problem will be solved.

 

CyrilDellenbach_0-1710765428497.png

 

Regards,

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Adobe Employee ,
Mar 14, 2024 Mar 14, 2024

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Hello @mk1837,

 

Could you send me the the .Blend or .SPP at cdellenbach@adobe.com so I can take a closer look? Please also add a link to this thread.

 

Let me know.

Cyril Dellenbach (Micro) | QA Support Artist | Adobe

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Community Beginner ,
Mar 15, 2024 Mar 15, 2024

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Hello Cyril,

Thanks for your quick reply to my post in the Substance Painter forum about the strange lines appearing on my mesh. Here is a link where you can dowload both the Blender and Substance files:

https://drive.google.com/file/d/1cfZzzdYT2ArQpbFbeUVA-9yxFOONfrUK/view?usp=sharing <>

I will also post the link in the forum thread.

Thanks in advance for your help.

Michael

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Adobe Employee ,
Mar 18, 2024 Mar 18, 2024

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Hi @mk1837,

 

You simply forgot to smooth your normals before exporting the object from Blender. Select your mesh, RMB and Shade smooth.

 

You can now reimport the 3D model in Painter, and rebake the mesh maps. The problem will be solved.

 

CyrilDellenbach_0-1710765428497.png

 

Regards,

Cyril Dellenbach (Micro) | QA Support Artist | Adobe

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Community Beginner ,
Mar 22, 2024 Mar 22, 2024

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That did the trick! A rookie mistake. Cyril, thanks so much for your help.

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Community Beginner ,
Mar 15, 2024 Mar 15, 2024

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Here is a link to both the Blender file, and the Substance file:

 

https://drive.google.com/file/d/1cfZzzdYT2ArQpbFbeUVA-9yxFOONfrUK/view?usp=sharing

 

 

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