And so Lumina is a new system for that, which provides better lighting and reflections and things like that.

Nanite is another technology that's with Unreal Engine 5 that is a different kind of rendering method that doesn't follow the conventional method of how we render

Whole meshes in video games or how we render in video games Which is typically how we would take a whole mesh and we would actually render the entire mesh You wouldn't see it all obviously because some things will block things but like we'd be working with the whole mesh Which is the conventional way of doing it if I really simplify things But what Nanite will do is instead it only renders and like works with the relevant clusters of a model in the viewport and so this is like basically just means that

There's huge performance gains if you can use Nanite, I suppose, because we don't have to work with the whole mesh and render the whole mesh.

We just have to render the parts that are relevant.

Okay, that's what Nanite does.