Unity Game Optimization - Third Edition

Using mesh-based LOD

LOD is a broad term referring to the dynamic replacement of features based on their distance from the camera and/or how much space they take up in the camera's view. Since it can be difficult to tell the difference between a low- and high-quality object at great distances, there is very little reason to render the high-quality version, and so we may as well dynamically replace distant objects with something more simplified. The most common implementation of LOD is mesh-based LOD, where meshes are dynamically replaced with lower detailed versions as the camera gets farther and farther away.

Making use of mesh-based LOD can be achieved by placing multiple objects in the scene and making them children of GameObject with ...