Nanobots

Previously, having many detailed objects caused sharp FPS drops and required manual LODs. Now Nanite renders highly detailed models in real time without manual LODs: the engine streams detail where the player looks and simplifies distant objects, keeping the scene smooth.

Nanite prebuilds an optimized hierarchy of geometry and splits it into clusters, dynamically adjusting their detail by distance and visibility. We enable it deliberately - we profile and use it where it delivers real gains.

In Unreal, we use visualization modes to see how Nanite groups triangles into clusters, how detail changes with distance, where overdraw occurs, and which clusters are occluded from the camera - and we fine-tune rendering and scene performance based on that.

Lumen and Nanite are flagship Unreal Engine technologies for real-time lighting and ultra-detailed geometry