Ingesting entire complex 3D city model meshes into UE

[FidelityRaccoon]

@darthviper107

If you’ve got some very high resolution photogrammetry of something like a city then you’ll need to optimize things to make it run well, and everything depends on what you’re going to do with it. If you’re just going to show some movement to view the mesh then you probably don’t need collision (unless you want to avoid allowing the user to move through the mesh). With something big and complex, you can’t do automatic collision generation, so you’d need to create a collision mesh yourself.

Ideally as far as LOD’s go, you’d want to split up the mesh into pieces and then have LOD’s for each of those.

I’m interested in viewing the mesh like travelling inside the city so i think using collision is inevitable.
i’ve read a bit about " bounding volume hierarchy", and making some kind of custom colliders using this technique and use the name conventions as written in the ue4 documentation for colliders, But i didn’t really dig deep into that.
would you say that is the right direction to go into? other algorithms to making colliders by script?