Well hey, if you want to do that, it may be a better option. The current method I’m employing is kinda messy (at the edges of the terrain cuts, especially). I’ll give you the tunnel shape that I want you to use, and maybe you can do your boolean subtraction with the tunnels, combined with some optimization magic lol.
And yes, the Tunnel Maker does exactly what you said. It sees where you have tunnels flagged on your NoLimits track, and then creates a 3D object in any shape you want to replace those tunnels, and places them in the correct spots in a giant model. I used that .3ds export in the SketchUp model to carve out the tunnel openings for minimum clearances.
All roller coasters have clearance requirements (so that people with long arms, legs, etc cannot hit anything surrounding the coaster track and car). In the NoLimits community, most people define that as the space the tunnel provides. The term the community likes to call it is “tunnel testing”, and if anything pops inside the tunnel frame (track, scenery, supports, another tunnel), then that is declared as a “collision” and something must be done to restore the proper clearances, such as moving scenery away from the track area.
Anyway, the tunnel shape that I created is that exact clearance zone. When I import that into SU and start trimming, it is the closest the rock/scenery can get to the track. That way the ride is very exciting, but safe. Now, I have the 3ds tunnel export… I can give that to you if you want to do some magic on your end. I would be grateful. Do note that it IS to scale in NoLimits, so you will have to match your track with it.
That is the problem though. Your models are not to scale, and the only way to make them to scale is to match your track/rails with the raw track export I provided. And you can’t load the raw track into SU… only I was able to. If I give you the tunnel file, it will be much too large for your model (your model was very tiny). And you won’t know what size to make your model. So… I’m not really sure how to let you do the tunnel thing.
Is there anything you think I can do on my end?