
You'll see in the 3D view that the short section is highlighted in red when you click on it. In BTB create two surfaces/cross sections on the upper part of the overlap, ensuring fully cover the lower part:įor both of them, select 'Set Material'. BTB track preparation Warning: Make plenty of backups of your BTB project and your track export folders. Option 2: Two versions of your track and the unofficial AIW editor! (and notepad)Īlthough the AIW file points can be edited manually, or using the AIW editor mentioned below, by far the best approach is to get BTB to do as much as possible so there's less manual tweaking to do at the end.

Here you can see triangles representing the centreline waypoints, with squares showing the racing line, which is a simple offset from the centreline. You will get problems with the AIW file (which stores info about the centreline and racing line, plus a few other things).

If your BTB track crosses over itself like this:
