Would you say Lumen is superior to RTXGI in lighting quality?
I havent been able to migrate all my 5.0 projects to 5.1 but anecdotally.
RTXGI is better than Lumen.
The Nvidia build of Unreal Engine 5.0 has more accurate lighting especially when using intricate Nanite meshes.
It also bring very cheap unlimited direct lighting, so you can have scenes completely filled with shadow casting lights.
The cost of this using Lumen is quite high and Lumen is already kinda expensive, even in 5.1 having a bunch of shadow casting lights is super expensive.
I love lights, i love shadows, so i put a shit ton of them everywhere whenever I can.....it breaks shit.
From my understanding though.
Unreal Engine 5.1s improvements to Lumen have done enough to catch up to RTXGI that if your project is a 5.1 project you dont need to use RTXGI.
But I havent confirmed this myself or seen anyone actually test it out.
Nvidia has a 5.1 branch of Unreal Ill download it when my new PC parts come in and give it a go to see if RTXGI has really been made obsolete by Lumen in 5.1
Edit: Looks like one of the Nvidia devs actually confirmed that RTXGI is going to be depreciated or rather development on it is going to slow down in Unreal Engine 5.1 going forward, rather they are focusing on Nvidia hardware acing using Lumen, while mini developing RTXGI.
Markus Nvidia:
For NvRTX tools like RTXGI the current release supports Unreal Engine v4.27 and v5.0.
As of UE5.1, Epic has enhanced the quality and performance of their Lumen GI solution which provides a viable GI option for most developers. We feel it’s valuable for our customers to work on optimizing Lumen on Nvidia GPUs to ensure it remains the best place to achieve the highest graphical experience possible.