There are problems with the NEW for 5.5…0.preview Path tracing the code has been changed causing problems. There is not as much interest now the UE 5 EULA Licencing has started.
So far by volume 5.3 LGPU has been the most popular.
This probably wont be fixed for a few updates and currently LGPU is very unstable so MID 2025 seems realistic
The instructions have changed to
DefaultEngine.ini file. Under the renderersettings category, add the following line:
“r.PathTracing.Experimental=True”
Reopen the project and change the viewport mode to Path Tracing.
Open the console and enter “r.PathTracing.AdaptiveSampling 1” and press Enter.
@Jimbohalo10 Hi, I don’t use ‘LGPU’, so I can’t say anything about that. I’ve tried ‘Adaptive Sampling’ in UE 5.4.4 and it works as expected, but I can’t try it in 5.5 because without a proper DLL - ‘Pathtracing’ doesn’t work for me. So, I can’t say anything about it either… For me, buggy ‘Adaptive Sampling’ is not a “deal breaker” because I’m not a fan of that feature
Anyone know why Epics GPU Lightmass isn’t working with AMD Gpus? aren’t AMD GPUS over 6000 series supported?
Baking static lighting puts out no shadows and no GI and baking stationary lighting gives shadows like dynamic lighting and no GI. i’ve seen other people with my exact issues and one of them said it just worked instantly when they switched to an NVIDIA GPU
I´ve literally tried everything on this threads, except compiling Unreal. Replacing files, rewriting the lines of code, everything and nothing works. I´ve been doing it in 5.4.4 and I have a GTX 1650, any ideas?
Also 5.5.0 came out recently, will there be a solution for that version?
