Lumen is the [[Unreal Engine]]'s dynamic lighting, global illumination, and dynamic reflections technology. # Notability Uses ray tracing with signed distance fields in software or using hardware accelerated ray tracing where available. # Limitations Resource intensive. Most demos I've seen of Lumen as well as games like Control which use technology like this have strange "sparkly" shadows. Incompatible with the "forward render". Lumen is also not supported on Oculus Quest. # Features # References ## Documentation - https://docs.unrealengine.com/5.3/en-US/lumen-technical-details-in-unreal-engine/ ## Controlling Lumen In-Game It seems very much like I would want players to be able to disable this feature. - https://forums.unrealengine.com/t/is-there-a-way-to-add-an-option-to-enable-disable-lumen-for-in-game-settings/613756/6 ## Compatibility - https://forums.unrealengine.com/t/how-do-i-disable-lumen-in-my-5-project/770039/4