Hi,
I’m using Unreal Engine 5.3.2 and I’m encountering a problem with ray traced reflections. The reflections of the car brake lights on the road appear fine in Lumen but not in Ray Tracing.
I’ve attached an image showing first Lumen Reflections and the next Ray Traced Reflections.
I’ve tried increasing the resolution of the meshes but it doesn’t work.
Can anyone help me with what’s going on with this?
Thanks in advance.
Standalone ray-traced reflections were never feature complete and are being depricated. There may be some way to get this to work, but you would be far better off just sticking to lumen reflections.
The difference in quality is quite significant between Lumen and RTX reflections in this project so trying to find a way to fix this while using RTX.
When hardware raytraced lumen with hit lighting is enabled, it generally matches or exceeds the quality of the old standalone raytracing. Perhaps you just need to change some settings for lumen to meet your requirements. There are a few edge cases in either setup where the other is better but overall they should be mostly the same - Lumen is raytracing too, after all.
If you insist on using other forms of raytracing, use the Nvidia RTX branch.
I know this a little late but just for anyone else coming here note that the emissive works well with PATH tracing on as stated by @BananableOffense you need to enable the Lumen “Hit Lighting for Reflections” under the “Lumen” project settings.
Refer to this article: Lumen Hit Lighting Reflections
