I've always liked Cornell Box renders, as well as the real life model they are based on, for the place it has in 3D graphics history, so I figured it would be a good simple project to test UE5's Lumen global illumination. I have to admit that while Lumen does have a few small limitations here and there, it does manage to get incredibly realistic results, especially for a real time GI solution. And it makes the workflow of lighting a scene in UE5 so much more fun and intuitive!
This scene is lit trying to match the reference, so: the rectangular light in the ceiling and two supporting point lights on each side of the camera. I did have to cheat a bit with the ceiling by adding additional lights to make the hole shine like in the reference without over lighting the scene, maybe I could have achieved that with the more accurate camera settings instead, but I'm not that skilled when it comes to camera settings. 😅
The scene also uses the new virtual shadow maps introduced in UE5, and while they are a bit noisy in this release at the default settings, they do give pretty accurate results as well.