Normals are perpendicular reference points to surfaces on 3D models. They define whether the surface is an inside or outside face (closed set of edges). An inverted normal is a normal that is pointing in the wrong direction, telling the computer that an outside face is actually an inside face when it isn’t. If you have a hollow design, an inverted normal can be indicated as you have both surfaces facing in and out in the same model.
Our team of Support Engineers is here for you.Contact Support