I've been working on a different project recently, but spent some time in the past week up import UHS: 1914 from Unreal Engine 4.24 to Unreal Engine 5. If you have followed the developments of UE5, you'll know that it uses a new lighting technology called Lumen. This new lighting provides high quality real-time lighting, shadows, and reflections. At the moment, it does not support transparency (so no windows), but the differences are beautiful. Below are screenshots comparing similar scenes with the UE4 version on top, and the UE5 version on the bottom.
