Unreal Engine 4.22 Preview

[Tim_Hobson]

@Muchasty

What is a Path Trace option in PostPro for ?
Can I use it w/o RTX card ?
Can I use MS DXR instead RTX for RealTime RayTrace ( I know it would be much much slower ) in UE4.22 ?

1. Those options are for the Level viewport view mode for the Path Tracer. It’s only enabled when enabling Ray Tracing for the project and launching with the -dx12 command line argument. (Same for the Ray Tracing features listed in the Post Process Volume.)
2. Currently, yes. When NVIDIA releases their GTX drivers that enable Ray Tracing and DXR support, the Editor should “just work” since our code for ray tracing isn’t RTX specific.
3. Ray Tracing in UE4 is already built using MS DXR.