Geometry Collections and Distance-Fields / Ray Tracing

[Arkiras]

@Loux_xavier

There is also a problem with Path Tracing. All Geometry Collections in my scene become invisible in Path Tracing rendering.

This may be because geometry collections are hidden from hardware raytracing by default. You can try enabling it with this cvar: r.RayTracing.Geometry.GeometryCollection 1

Edit: If you are on 5.5 then you will also need to ensure that you disable Nanite on your geometry collections, as the fallback geometry (which is used for hw raytracing and pathtracing) is broken in 5.5.