Nervous geometry on movement

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I want to ask why exactly in Unity, when movement happens slightly distant geometry with high detail becomes highly nervous and jumps / flickers? I've ruled out it being any sort of aliasing issue, I've also noticed this doesn't happen in other engines.

I've tested with Micheal O's Medieval environment pack, the only thing I can think of is Z-buffer precision. Anyone else noticed this? Walking around a scene, tree's and grass are a bad culprit for this sort of behaviour, especially leafs and branches.

Answer 1

Answer by nesis · Feb 12, 2014 at 03:18 PM

Given you appear to be using a few postprocessing scripts, I suspect you're using Unity's postprocess antialiasing script? If I recall correctly, that script works by detecting edges in the depth buffer, and blurring only those parts of the image. That leaves out any hard edges in the RGB channels, which would explain the aliasing you're seeing while having smooth edges between pixels at different depths.

You can enable "proper" antialiasing by clicking Edit -> Project Settings -> Quality, then in the Inspector tab, change Anti Aliasing to a setting of your choice.

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$$anonymous$$ · Feb 12, 2014 at 04:51 PM 0

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Not with deferred rendering you can't :).. I'm making a C$$anonymous$$AA hybrid which should hopefully resolve this issue.

nesis · Feb 13, 2014 at 02:36 AM 0

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Best of luck with it - if you're willing, post your C$$anonymous$$AA script here or to the community wiki since I imagine plenty of people would want deferred rendering with AA.

Nervous geometry on movement

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