Unreal Engine 4.22 Preview 1 Released With Real-Time Ray-Tracing

Unreal Engine 4.21 back in November was a big update for Linux gamers in that this game engine now defaults to the Vulkan renderer and also had various other fixes. With today's Unreal Engine 4.22 Preview 1 release, there are no Linux/Vulkan-specific changes mentioned, but some other interesting changes in general...