The work on the front hall of the opera house is about to be completed. I am testing the UE4.27NVRTXCaustics branch. So far, its performance is satisfactory to me, real-time ray tracing caustics, translucency, reflection, refraction, and shadows are amazing!
https://www.artstation.com/artwork/kl...
https://github.com/NvRTX/UnrealEngine...