Please help me figure out what this issue is and how to properly fix it
I get this problem that's related to shadows/fog but don't know exactly what it is
I just recently got it again after uninstalling/reinstalling ENB, but the effect is present without ENB too, and it affects my maps too
See pics below:

ENB off


ENB on


More examples:






In the example below I had the issue, then I installed Remove Interior Fog V2 and Revamped Exterior Fog and the issue seemed fixed (2nd pic); but now after reinstalling ENB and leaving the interior fog mod enabled I still get this weird glitch



Any ideas?

Ambient occlusion fade distance not configured properly or this effect forced in drivers in case of nvidia card.
Black rays are not tweaked intensity of [particle] category or [voluemtricfog] if i remember. It's caused by some mod, these objects replaced and detected by properties (in enbseries) as different class.

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i5-4690k, 16Gb RAM, GTX 1060 6Gb, X-Fi Titanium, Win7 x128
I am INFP, not the brutal, godamnit.

Thanks for the reply
I made sure to have all nVidia effects turned off using NVIDIA Inspector, so that shouldn't be it
I initially thought it was a mod like you said but i'm convinced thats not it either since I had the issue after reverting back to vanilla Skyrim and also after uninstalling just ELFX (only mod installed I could think of that would cause it).

Is there a way to manually adjust the AO Fade Distance?
Am I correct in assuming that different ENBs or ENB presets change this value? If so, how do you undo those changes?

Look in to [SSAO_SSIL] category of enbseries.ini or editor.

_________________
i5-4690k, 16Gb RAM, GTX 1060 6Gb, X-Fi Titanium, Win7 x128
I am INFP, not the brutal, godamnit.