I wasn't sure where best to put this, but I have done some searching and I can't find out how to make your track transparent/clear using the track builder. I have, of course, read through the Wiki page and couldn't find anything. I thought there might be a "glass" base texture you could use. Any ideas for how to do this? (I'm trying to see if it's possible in the track builder, but if there's a simple way to do it in the world editor, then that would work too.) Edit: I'm apparently not allowed to make new tags on posts, like "transparent", which would obviously be appropriate here.