Discovering Nanite
In this section, we will learn what Nanite is and how it works. This will be an overview of the Nanite technology to let you know what we can and cannot do with Nanite.
Nanite is the new virtualized geometry system in Unreal Engine 5. In other words, Nanite is a new, smarter, and faster way to render triangles (polygons) on screen, which allows you to populate your scene with highly detailed assets in terms of polycount (number of polygons per asset) without stressing graphics cards and performances.
To allow us to do that, Nanite uses a new technique to generate level of detail (LOD) meshes (LOD allows the Engine to scale the quality of the asset according to its distance from the camera), which considers clusters instead of the entire mesh.
Nanite divides geometry into clusters. You can see them by entering the Nanite Visualization mode and selecting Clusters. To do that, click on Lit in the top-left corner of the Level Viewport, and from the Nanite Visualization...