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I did all of this and performance in interiors is a constant 60 FPS with lots of headroom. Setting this to 1 (medium) or even 2 (low) will improve performance with very little difference in image quality. In many ENBs all of the Quality, SamplingQuality and FilterQuality settings are set to 0, which is high.
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Go through your enbseries.ini and set all EnableSupersampling to false. Meaning all reflections will be rendered at 4K! Which is insane! Setting this to false gave me a 10% boost in interiors. However, because EnableSupersampling is set to true every reflection will be rendered at four times the resolution. So what does that mean? SizeScale=1.0 means that reflections will have the same resolution as your game resolution. So looking through the enbseries.ini of NLA I found the following: I did some research and found this guide on ENB tuning: Some of you may know about it but it seem that even ENB creators are not aware of it.
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The visuals are great but performance was pretty bad on my GTX 970, even in interiors. I'm using the popular Natural Lighting and Atmospherics for ENB (NLA).
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