[BEGINNER] Baking problems in Substance Painter

Arkanis

Hello guys, I am relatively new to 3D, and to Polycount. started to really work on 3D modelling 2weeks ago. As I am studying the full workflow of props creation I found myself struggling really hard with baking highpoly onto lowpoly meshes, especially when it comes to makine stylized things. So I made a "test" rock that I sculpted in Zbrush and retopo in Maya, to finally bake it in Substance. Here is the problem : 

I always get that on every of my models when I try to bake them. Feeling a little dumb right now, as this could be a really easy thing to fix, but can't find out the solution.
I hope you can help me fix this, 

Obscura

Do you have dilation on the normal map? Thats a baking setting. It extends the pixels of the texture outside of the uv shells. 

Also, the place for threads about technical problems is the technical talk section of the forum. Next time, please post there.

Arkanis

Thank you for your answer, and sorry for the bad posting, I will make sure to post in the right section next time
Dilation width was set to 1. I tried setting it to an other value, but didnt change the result. 
Maybe this has to do with the frontal and rear distance ? I don't really know what it is technically doing.

FrankPolygon

It looks like a smoothing group issue. Is the low poly model all hard edges? If it is then try setting the edges to smooth and re-baking.

Here's some documentation on baking with hard edges and smoothing groups: https://polycount.com/discussion/107196/youre-making-me-hard-making-sense-of-hard-edges-uvs-normal-maps-and-vertex-counts/p1

Obscura

^That. Simply put, apply smoothing on the mesh normals.

Arkanis

Thank you very much for your help !  I will keep you informed ! 

Arkanis

Thank you so much guys, I indeed did a beginner mistake of leaving some edges that were marked as "Sharp edge" 
I removed them and enabled Autosmooth in Blender, and there it is ! 
Thank you very much again !