Hi all, Unreal newbie here, I have a few questions to do with Volumetric Fog that I haven’t been able to find definitive answers to on the net or on here - but forgive me if I have actually missed any similar posts 
My scene:
- A directional light using CSM / far CSM shadows, and ‘cast volumetric shadows’ turned on
- Volumetric Height Fog (With fog enabled, inscattering turned off)
- Some basic volumetric fog particles to ‘fill in’ foreground areas for maximum god ray goodness
- Lots of deliberate geometry to cast volumetric shadows from
Question: My fog seems to lose it’s shadows in the distance - is there a parameter that controls this?
It’s quite obvious, as you move the camera closer / further away you can see the shadow ‘planes’ breaking and disappearing - and not as if there’s more fog in between, it’s literally losing it’s shadows. No amount of tweaking to the cascading shadow maps or various console commands visibly changes anything other than grid size, which just does that.
Question: Is there a way to use ray traced shadows with volumetric fog?
If I enable ray traced shadows on my lights, they do not cast volumetric shadows.