How to orient all normals of a 2D/3D mesh in one direction?
To orient all normals of a 2D/3D mesh in one direction, use Modification/Orientation operation. Unfortunately it does not provide a one-click option to orient all normals in one direction. So, if you select the whole mesh, it will simply redirect all normals. For 3D elements, “Bad oriented volume” filter criterion helps to find the volumes that should be reoriented. For 2D elements, you have to select the elements to be reoriented manually.
