Weird distortions with directional warp due to UV borders

Question

Hi everyone,

I am working on a stylized salmon filet and I have an issue with the directional warp.

To create this effect, I am using a gradient linear 1 which is tiled. Then, I add a direction warp with an Gradient linear 2 rotated of 90°. The issue seems to come from the fact that substance painter should calculate pixel only if it is in the UV of the object. So when I make the warp, it takes the pixel of the border and extends it instead of taking the next pixel outside the UV.

If you have any idea of how to fix it, I would be greatful to read it.

Cyril Dellenbach · Accepted Answer

Hi @Nathan Costantini,

Thanks for the message and very interesting solution to create a procedural salmon pattern.

You're right, the issue comes from the filter working only on the pixels from the UV islands.

If you have a Substance subscription, I'd advise you to create the same pattern, but with Substance 3D Designer. This way, there won't be any UV issue and you could quickly reuse your pattern.

Best regards,

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