Triangulate Artefact in Normal Map

PetSto

Hi, I am trying bake normal map in Marmoset Toolbag 3.02, where whole LP is one smoothing group. Object is simple cube which I triangulate before baking and exported meshes has only smoothing group data, no more options as are etc. tangent and binormals. Problem isn't classic gradient, where is a large difference in the angle between the surfaces, but as you can see on image below, is gradient where it goes through triangulate line. Problem appear only when is selected mikk/tspace. If I select Marmoset or Maya tangent space in settings, everything looks good. I tried these meshes bake in xNormal and there isn't problem. What I am doing wrong or don't understand tangent space option in toolbag ? I mean, when i want do test bake and setup (offset, skew) normal map, then first I use marmoset tangent space, and if everything is setup and correct, change to mikk/tspace becouse it is for UE4 and bake final normal map.

Thank you.

EarthQuake

Unfortunately this is a known bug when using Mikktspace. This is something we plan to look into and hopefully find a fix for in the future.

In the mean time the best advice I can give is to use hard edges along UV seams.

PetSto

Thank you.

FourtyNights

I encountered the same issue. The tangent space set to "Marmoset" is perfect, but "Mikk/xNormal" gives those triangulation errors, even though the mesh is triangulated before baking and all. But if it's a bug, I hope it's fixed soon.