[archivator]

This is my favorite Unreal 4 demo - https://www.youtube.com/watch?v=MOvfn1p92_8 (sadly missing the wonderful quote "I light my level by dropping a sun in.")

I'm completely in awe of the feedback loop here. It even compiles and swaps code while you're in the game!

[dmauro]

Unfortunately that demo is outdated. They dropped a lot of that GI tech because it was never made performant for medium spec machines.