I could change it to a rectangular tunnel, in which case, the track would rotate relative to the tunnel. I was considering re-doing the tunnel/landscape and all the work that goes along with it, but I just don't really have the time, and, considering that the track is slightly pumpy, and this is my ...

I don't always build with real world cost in mind... You do have a sense of speed because of the texture inside the tunnel. You've also got a sense of direction because of the twisting in the octagonal tunnel. There's only one tunnel that's somewhat long. It may be around 1/8 of a mile...but at arou...

This ride is my first using tunnels (in sketchup). I made the track in Newton 2 on Thursday and I've been adding other 3d objects since. Here's some screens. http://i572.photobucket.com/albums/ss166/insanedrummerx27/underground.jpg http://i572.photobucket.com/albums/ss166/insanedrummerx27/prelaunch....