Understanding Normals Home - Return to Tutorials One of the fundamental concepts in writing Descent 3 levels is the positioning of normals. Faces can be thought of a 1 way wall. On one side you see nothing, but on the other side there is a wall. When creating a level you have to be very observant of which way the normals are pointing or else there might be holes in your walls. Look at the view to the right. Notice the purple lines, those are the normals. This is the 3D view of it, notice the wall is solid until it reaches the point where the normal is flipped, that's because that face is facing the OTHER direction, not only is this bad for the level, it creates some strange effects when played in the game (try it for yourself.) These problems are very easy to fix though. All you have to do to flip the normal of a face is to mark the face (make sure you are in face mode) and hit 'N'. That should flip the normal, but watch for faces you accidentally marked (or left marked) because you will flip all marked faces, so make sure that only the faces you want flipped are marked. Home - Return to Tutorials