Flipped face within a UV shell when unwrapping?

james swanson

I was doing some checks with xView, and apparently one of my faces is flipped.



I've tried flipping the geometry but that causes a smoothing error. I'm not sure if it's even possibly to mirror only 1 polygon in a UV shell, so I'm not sure what's causing this. When I googled this, I only get suggestions to mirror the UV, but doing that causes a lot of distortion.

Eric Chadwick

You only need to flip the UV, not the geometry. Select the face in the UV editor, Break it, the select the edges inside the hole, and Stitch the polygon back into the main shell.

You will need to re-bake the normal map if you had one already.

james swanson

Thanks dude, I'll give it a shot. That seems so weird to me that one random face would become flipped like that.