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How do I disable Eye Adaptation/Auto Exposure?

When I look somewhere for some seconds, begins to be brighter. How I disable that?

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asked Jun 26 '14 at 06:44 PM in Using UE4

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Hi ditsikts,

I believe you are talking about the Eye Adaptation which we call Auto Exposure. To turn this off, find the PostProcessVolume in your Scene Outliner. In the Details panel under Auto Exposure change the Min and Max Brightness to the same value.

I hope that helps.

Thanks, TJ

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answered Jun 26 '14 at 07:04 PM

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avatar image Davision Sep 26 '16 at 02:55 PM

That does not work for me in 4.13. Also shouldn't there be a way to really turn it off so it doesn't take performance? Edit: turns out it did not work because I had 2 post process volumes active, still a way to turn it completely off would be great especially for VR.

avatar image Prouticus Sep 28 '16 at 07:34 PM

In Project Settings, go to the "Rendering" section, you'll find the switch there.

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avatar image Mighty Marcos Oct 19 '16 at 01:00 PM

I tried to turn off the Auto Exposure in the Project Settings, as setting the Bright values in the Auto Exposure section in my Post Process Volume, but everything makes my scene quite darker.

Is there a way to turn off the Auto Exposure without affecting excessively my scene lightning?

avatar image Prouticus Oct 19 '16 at 01:37 PM

Hey @Mighty Marcos,

If you performed your lighting pass prior to disabling AE, you will likely need to go back and brighten your scene lighting (which is what I'd recommend over doing a post-process adjustment, because you'll keep the integrity of your value range vs. artificially flattening it).

avatar image TorQueMoD May 01 '17 at 06:29 AM

Keep in mind that if you disable it in the project settings and then set different values via a post process volume, the volume settings will override the project settings. So you can turn it off by default in the project settings and then turn it back on via post process. Make sure if you've got it off in the project settings you also leave it off in the post process.

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