Complex collision problem

Hi,
I’m creating whitebox of interior of a ship, which I made by 3ds as a single object. I wonder what is best way to make a collision for floor and walls with holes for doors. I’m struggling with complex geometry, made in 3dsmax linked to main (visible in game) ship object and renamed to UCX_ship. I exporting it to single file. Then in UE4 in content browser editing ship file I’m choosing collision -> copy collision from selected static mesh. Then I have approximated collision instead of exact as a exported one. Help me pls, I’m attaching screen shot what I’ve achieved.

Geometry of interior of my ship looks like this:

At the moment, best solution is “use complex collision as simple collision test”. Name of it perfectly describes what I need, but I don’t see that collision in preview, but works fine, except I have sometimes problems with navigation. I’d like to that game detect only floor/ground clicks, I don’t wanna walk onto walls.

The best way is the one that you used :wink: Create collision boxes in your 3d program -> rename it UCX_… -> import it (make sure to disabled “one convex per…” in your import settings)- But dont duplicate the entire mesh. It’s better when you just create a new collision model from scratch (otherwise it could cause problems)

Here are three ways how you can create a collision:

Update:
It works, it has to be closed collision geometry when I;m making it from scratch.