Inverted normals when openig FBX

pasta

Im trying to import my lowpoly model to bake it with my highpoly. However the normals are inverted on the mesh so im not getting anywhere. I use 3ds max 2017 and substance painter 2.4.1. In the export settings i have checked "Tangens and Bionormals". And as you can see, the UV is fine. I've also checked if there was any inverted normals in 3ds max, they were not. So the problem is whenever I start the new project.

Nars

You can try using a Normal modifier (and collapse) in Max.

Bruno Afonseca

Did you reset xforms in Max? If you use the Mirror function, it applies a negative scale on the object, which looks fine on the viewport but it flips the normals once you collapse it.

Ikben

In Max, open your uv editor map.  On the map there is a pull down menu to "select inverted polygons" or something like that.  Select them.  Manipulate inverted polygons by flipping, or moving by each polygon.  Fix them until no other polygons can be selected as inverted.  Export your FBX or obj again and use that in Substance or whatever.  I don't know about what Mars said.  Bruno has something.  But I had the same problem, and fixed it so.