3D training + 90% Uni courses in the world = $-scam.... :) Sorry, no offence. Just joking. :) I've never trained 3d/CG at uni/college but I've heard a few horror stories..... Yes, the feature is basically just to let you know which UV faces are flipped/inverted.
oh awesome!! ty!! yh i heard that if its around 90 degree angle then make it hard edge. when u get these weird shadows (below) is that another sign to bassically make the edge hard?? no those edges where soft edge cause of their angle. also would u bother triangulating mesh when exporting to xnormals? cause a lot of people…