Concavity Tutorial Home - Return to Tutorials Every face in Descent 3 has to be convex, if there is a face that isn't convex (which is called concave) Descent 3 will treat it strangely. The picture to the right is an example of a convex face. I drew lines between every vertex, notice that all of the lines do not go outside the face. Like I said before if you draw a straight like between every vertex, you shouldn't have any lines outside of your face. If you get a line outside of the face (the red lines) you have a concave face, like the one to the left. Luckily, this problem is pretty easy to fix. This is one way to fix this problem. In D3Edit you are allowed to split a face. I selected the middle two vertexes and clicked on the 'Split current face' button. To the right is the results of that, Now I have two convex faces which D3 will handle correctly. Home - Return to Tutorials