Strange atmosphere artifcats

I’m using Unreal’s lighting system (dir light/Sky atmosphere) and I’m getting this strange artifact that appears near an animated camera. I’m also getting a similar effect at render (local) time in the distance see attached (x2 images) overlapping buildings on the skyline.

Any idea’s on what might be causing this?

Can you please provide a wider screenshot? Those are cropped so close that I can’t really see the context well enough to understand what the artifact is.

Sorry, under some restrictions in regards to how much I can share (live project in the office). Let me get back to you

Does this help at all? The horizon band line overlaying the 3d context? Seems to be more apparent towards the direction of the sun.


Hello, I’ve seen this before when the Metallic factor in the material was set to 1. Is that the case here?