A year ago, Nvidia released it's RTXGI tech for Unreal Engine 4.
Problem was...it wasn't simple. You had to download and compile COMPLETE Unreal Engine 4 source code from scratch, which also made that build incompatible with other UE4 Marketplace content.
Almost exactly a year later, we now have a 'binary' RTXGI plugin released for UE 4.27 & above...with a few minimal steps involved in getting started.
Buckle up, and here we go!