Marmoset Toolbag: How do I fix lighting errors in a tangent space normal map?

FrellingHazmot

Hello!
I baked some textures down in Toolbag and it looks fine until I reimport the same texture. I get this weird baking error down the middle:

The UV's are mirrored. Edge padding doesn't fix this. The error goes away with object space checked in Marmoset. I did work on this in Substance Painter. However, I get the same result in the unedited and edited normal maps.

Udjani

Did you tried to change the tangent space displayed in the lowpoly? 

 

FrellingHazmot

Udjani said:

Did you tried to change the tangent space displayed in the lowpoly? 

 
Hey! That worked! Any idea what would cause the error in the first place? I had it set to Marmoset.

Thanks a lot!

Udjani

@FrellingHazmot, Its a mismatch of tangent basis, it was probably baked with marmoset tangent space and when you imported it was using other tangent space to display.

When baking is better to make sure that the program that you will bake the normal, and the one that will display use the same tangent space basis, so you will be working in a "synced workflow", this way you will not get those type of errors.  

You can read more about here (Tangent Basis) https://www.marmoset.co/posts/toolbag-baking-tutorial/
There is also a tutorial more in deph from Allegorithmic: https://www.youtube.com/watch?v=gR3r7Xmhmlk&feature=youtu.be

FrellingHazmot

Udjani said:

@FrellingHazmot, Its a mismatch of tangent basis, it was probably baked with marmoset tangent space and when you imported it was using other tangent space to display.

When baking is better to make sure that the program that you will bake the normal, and the one that will display use the same tangent space basis, so you will be working in a "synced workflow", this way you will not get those type of errors.  

You can read more about here (Tangent Basis) https://www.marmoset.co/posts/toolbag-baking-tutorial/
There is also a tutorial more in deph from Allegorithmic: https://www.youtube.com/watch?v=gR3r7Xmhmlk&feature=youtu.be

Oh! Good to know!  I must've overlooked this video in the series. Really handy info.

Thanks a bunch for the help!