How do I stop lighting blotches from popping up when I turn the camera. Its almost like the lighting cant keep up with simple or advanced camera movements without taking 5 seconds to rebuild itself

[oDinkleberg]

Lighting too slow

[SupportiveEntity]

Hey there @oDinkleberg! Welcome to the community! This is an artifact of Lumen’s sampling when moving the new area into screenspace. This thread mentions some mitigations.

500×500 2.84 KB

I believe I can answer that. Essentially, that noise when the camera is moving is the product of the final gather undersampling the scene, basically it doesn’t have enough lighting information to cleanly resolve the GI. That, combined with the visible light-leaking, temporal ghosting artifacts, and the medium setting you have it set to all make me think it’s a scalability problem. Lumen isn’t really designed to scale gracefully below high, and epic is the recommended setting for stable lighting…