There’s three predominant methods you are able to do it – you’ll be able to both open the home as a blueprint and add a bunch of “field collision” componenents, and edit them by hand. Another factor you are able to do is open the home’s mesh and (because the earlier commenter stated) add field collisions. The end result shall be roughly the identical.

The final method you are able to do it, is to additionally open the home’s mesh. Then, you should use the window in backside proper. It ought to have a button “create convex collision”. You can select what number of colliders you need and the way complicated they need to be with the sliders. It can take few seconds, and the outcomes won’t be satisfying – however it will likely be totally automated. If that is not sufficient, you’ll be able to examine the choice “use complicated shapes as easy” – that ought to completely cowl the home, nonetheless it will likely be the most expensive.