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How to fix padding "zebra lines" on Texture Export

Community Beginner ,
Aug 22, 2023 Aug 22, 2023

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Every Padding export option available produces this. All textures files exported includes this zebra effect (Base, normal, Smoothness, Roughtmness). Any insights and help appreciated. Cheers! 🙂

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Bugs & Crashes , Discussion

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Adobe Employee ,
Aug 22, 2023 Aug 22, 2023

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Hello Jason,

 

Could you send a picture from the entire UV map?

 

Let me know,

 

Cyril Dellenbach (Micro) | QA Support Artist | Adobe

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Community Beginner ,
Aug 24, 2023 Aug 24, 2023

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Hi Cyril, unfortunatley I cannot at this stage. This effect isnt a known issue?

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Adobe Employee ,
Aug 24, 2023 Aug 24, 2023

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Well, it's kind of hard to see what's happening on the picture sent, but this isn't really an issue: it is the expected behavior. The padding works by taking the pixels on the edge of every island and spreading its tint through one direction.

 

Therefore, as we usually don't have a unique uniform color on the entire island, this "zebra" effect appear.

 

01_Head_Base_color.png

 

Do you have a reason to avoid these lines or was it just out of curiosity? Maybe we can find a solution to your issue.

 

Best regards,

 

Cyril Dellenbach (Micro) | QA Support Artist | Adobe

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Community Beginner ,
Aug 25, 2023 Aug 25, 2023

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I suspect it is causing the below mesh 'bleed effect' on my game models (both unity & unreal) as well as seen in substance painter when zoomed in close.

meshbleed.png

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Adobe Employee ,
Aug 25, 2023 Aug 25, 2023

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From the picture, I'd say it's the opposite. The UV doesn't seam to have Padding, and this can causes bleeding.

 

Considering an UV island can be in between two pixels, which will result with blurry edges, the Padding is here to avoid this kind of behavior by dilating the pixels from the edge.

 

padding.gif

 

With that being said, it can also come from how the UV map has been built. If the islands are too small or if the resolution is too low, bleeding may appear.

 

Best regards,

 

 

Cyril Dellenbach (Micro) | QA Support Artist | Adobe

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