UPDATE: I have figured out what the problem is (I think). I think this may be a rendering bug on Metallic materials, when using a setup Dynamic Lighting only setup. IE: turn off Static Lighting, then tick Force No Precomputed Lighting" in World Settings".
UPDATE 2: A day or two after I originally posted this, my hard drive suffered catastrophic failure, and it was only a few days ago that I was able to get it replaced. Today I’ve got UE4’s editor running again, but the problem has seemingly gotten worse, and now there are zero reflections at all.
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I have a large mesh which acts as a water surface. I have noticed that there is some darkening of it along the edges. How do I get rid of this?
Screenshot below:
EDIT: Actually, something seems to be very wrong with reflections. It almost seems like they’re being “inverted” somehow.
EDIT 2: And, I’m seeing reflections where I shouldn’t be seeing reflections, as shown below (in case it’s not obvious, that sphere is very small and close to the camera, while the underlying water mesh is huge). Further info, the effect on the first image is more pronounced if the camera is pointing at a downward angle, and less if it is pronounced upward. Adding in a Sphere Reflection or Box Reflection object appears to have no effect.