This was a traditional rendered arch/vis project I did a few years back that I recently converted to run in UE4 as a fully interactive demo to show off what can be done these days in real-time in UE4 for potential clients. Using UE4 4.23 ( sorry, no ray-tracing. It kills the frame rate, especially at 4K ) The demo defaults to a 1st person camera, but also has the ability to switch to a drone cam, and 3 different looping animated cameras. Also have the ability to switch between 3 different times of day via an in-demo menu and UE4's static lighting levels. Hope you all enjoy - thanks!
FirfaxRT Final Source