Normal Map Problem

Priss · Feb 2017

Hello! I textured this asset with substance painter and when it is rendered there it doesn't show any problems with the normal map, but when I try to render it with marmoset it shows some strange artifacts. I tried exporting the maps in different formats but the problem was not fixed.

This is a screenshot from substance painter

Image: https://us.v-cdn.net/5021068/uploads/editor/x3/zv8r4gqc8wh9.png

This one is from marmoset:

Image: https://us.v-cdn.net/5021068/uploads/editor/9r/4srh5b6crgyq.png

Any help would be greatly appreciated

Thanks!

Macebo · Feb 2017

Priss, try changing the tangent space of your object, from whatever it is now, to any one of the others, then back to marmoset. Here:

Sometimes that fixes these kinds of errors.

Scruples · Feb 2017

turn off shadows and ambient occlusion to check if it's that, adjust bias appropriately to fix.

Bartalon · Feb 2017

This looks like a bit depth problem. It occurs when the topology difference between your HP and LP is so fine that an 8 bit range can't store the appropriate values.

http://polycount.com/discussion/148303/of-bit-depths-banding-and-normal-maps/p1

tl;dr to remove normal banding, bake as a 16 bit per channel TIFF or EXR format, and convert to TGA.

Priss · Feb 2017

Bartalon said:

This looks like a bit depth problem. It occurs when the topology difference between your HP and LP is so fine that an 8 bit range can't store the appropriate values.

http://polycount.com/discussion/148303/of-bit-depths-banding-and-normal-maps/p1

tl;dr to remove normal banding, bake as a 16 bit per channel TIFF or EXR format, and convert to TGA.

Exporting the maps from substance painter as a 16bit TIFF got rid of the shading error. Thanks man!

Normal Map Problem

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