Turns out that when you draw a quad CCW and then draw a CW quad next to it in the workspace, hexagon instantly rewinds the CW quad so that both normals are facing you. Hexagon obviously assumes that if a user creates a quad, he’s creating the face he wants to see. This isn’t a bug, it’s actually perfectly reasonable and in this case, hexagon does its job at the expense of making me look like an idiot.
It depends on what tools you are using.
If you are constructing a quad/polygon using the “3d primitives-> facet” then Hexagon will automatically flip the polygon normal to face camera. However:-
If you draw a square (using poly-line tool), one clockwise (drawing 3 lines, then selecting close, to create the square), then one anti-clockwise, you will see the possible problems when using other tools on those lines, such as:-
Extrude each of those squares in the same direction, the normals on the (from each square) extruded polygons will be in different directions, or, use “Surface modeling-> coons surface” on each square(of lines) and those will also be in different directions.