Question

I've recently got back to NL after being off for several month's, and I noticed that in one of the tracks I downloaded, there were tunnels carved through the hill. How do you do that? And if this question has already been asked, Im sorry to have asked it again.

Example coaster: Hydro Thunder uses the tunnels I talk about.

Lets see.
Its actually a .3ds hill with a tunnel in it. Usually, you make a large peice of land, and make a tunnel through it. I, myself, can't do it, but if your pretty good at .3ds, it shouldn't be a problem.

acctully you need to terraform your land either make a trench and put 3ds over it or just make a hill and make the track go through it but then there will be a ground collision

^ people will rate down for that.

[hyyyper]

^no they won't, and if they do there're n00bs, good raters know there are ppl that don't have modeling software and thus can't make underground tunnels

^I dont rate down I just dont rate up. Its just tacky. Why not find one of the many modelers here to do it for you? I see people willing to do 3ds all the time.