https://wccftech.com/unreal-engine-ray-tracing-nvidia-rtx/

Since NVIDIA announced their GeForce RTX line of graphics cards, there’s been a lot of excitement for real-time ray tracing, but not a lot of actual support. Battlefield V and Metro Exodus include ray tracing, but the large majority of big games are still playing waiting and see with the new tech. Well, we may be about to see ray tracing in a lot more games, as Unreal Engine now supports ray tracing and path tracing.

The latest preview version of Unreal Engine 4 includes both low-level and high-level support for ray tracing, which means the thousands of developers who use Epic’s engine should now be able to implement the fancy new reflection tech relatively easily. Needless to say, this is a big boost for NVIDIA’s RTX cards as ray tracing uptake has been slower than expected, with many games, such as Shadow of the Tomb Raider, holding back despite promising to support the tech.