How do you achieve this effect? (Auto exposure)

I’m trying to work with auto exposure and other post processing effects like bloom to get this effect shown in the picture but I can’t figure it out.

If you need something more specific (link is provided), the lighting change at 0:33 from The Black Masses is what I’m trying to go for. THE BLACK MASSES - Official Gameplay Trailer (New Open World Zombie Game 2019) - YouTube

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It’s just auto-exposure doing it’s thing. It will over-exposure to compensate for the lack of light in the tunnel, then under-expose to compensate for the higher amount of light. Bloom should be left at default until exposure is figured out, since the appearance of bloom can be impacted by exposure.

I personally prefer the Basic Auto Exposure that will adjust based on the center of the screen instead of a Histogram. It’s easier to control and less prone to small emissives overpowering the rest of the Histogram, plus you get the benefit of having a calibration factor that it will always try to expose for.