# Light intensity slowly increasing when first playing the scene

**URL:** <https://forums.unrealengine.com/t/light-intensity-slowly-increasing-when-first-playing-the-scene/662665>\
**Category:** World Creation\
**Tags:** Sky, unreal-engine, UE5-0, question\
**Created:** [October 5, 2022, 4:36am UTC](https://forums.unrealengine.com/t/light-intensity-slowly-increasing-when-first-playing-the-scene/662665 "2022-10-05T04:36:24Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![anonymous\_user\_c5e4e3fa](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_c5e4e3fa](https://forums.unrealengine.com/u/anonymous_user_c5e4e3fa)\
**Post date:** [October 5, 2022, 4:36am UTC](https://forums.unrealengine.com/t/light-intensity-slowly-increasing-when-first-playing-the-scene/662665/1 "2022-10-05T04:36:25Z")

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Hi everyone, when I play my scene the light is very dark and I can’t even see anything, but it slowly increases during the first several seconds until it reaches the desired intensity and stays there, how do I make it the correct intensity from the first frame? thanks  
example:  
first frame:

 ![1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/0/e/40eb6dfaf777683931a46b15305f953f4dfded67.png)

several seconds later:

 ![2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/f/d/2fd1ac2585bd1a1865e5bac9af4e2a70b8ac175e.png)

NB - How do I change the white skyline between the sky and the fog (The area inside the red rectangle)? thanks, I’m very new to UE 🙂

 ![3](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/5/f/c5f52d2e162ec20bce41098898351cdd935bf0ba.png)

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**Author:** ![ClockworkOcean](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/clockworkocean/32/1169999_2.png) [@ClockworkOcean](https://forums.unrealengine.com/u/ClockworkOcean)\
**Post date:** [October 5, 2022, 7:20am UTC](https://forums.unrealengine.com/t/light-intensity-slowly-increasing-when-first-playing-the-scene/662665/2 "2022-10-05T07:20:57Z")

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It’s auto exposure.

Usually, you can just turn it off in the project settings, but that doesn’t work in 5 at the moment. The only way to stop it, is in the post process settings on the player camera:

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/c/1/4c1b563f201b25cd62cf1de85f99b5d0b5986e47.png)

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**Author:** ![MostHost\_LA](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/mosthost_la/32/907035_2.png) [@MostHost\_LA](https://forums.unrealengine.com/u/MostHost_LA)\
**Post date:** [October 5, 2022, 9:36am UTC](https://forums.unrealengine.com/t/light-intensity-slowly-increasing-when-first-playing-the-scene/662665/3 "2022-10-05T09:36:02Z")

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“What is Auto Exposure” for $100 (low hanging fruit on this one).  
we playing the opposite of jeopardy…

> [@ClockworkOcean](#):
>
> but that doesn’t work in 5 at the moment.

Amazing / are you sure?  
They implemented a curve parameter for it back in 4.26ish from your screen-cap they reverted that too, which knowing them seems unlikely.

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**Author:** ![ClockworkOcean](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/clockworkocean/32/1169999_2.png) [@ClockworkOcean](https://forums.unrealengine.com/u/ClockworkOcean)\
**Post date:** [October 5, 2022, 10:44am UTC](https://forums.unrealengine.com/t/light-intensity-slowly-increasing-when-first-playing-the-scene/662665/4 "2022-10-05T10:44:47Z")

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Yup. The project switch does nothing. Also dropping a PP volume in the level has no effect.

Changing the player cam, was the only way I could find 🤪

Ydrapoej ( opposite of Jeopardy 🙂 )

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**Author:** ![SvetaRom](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@SvetaRom](https://forums.unrealengine.com/u/SvetaRom)\
**Post date:** [June 29, 2023, 3:10pm UTC](https://forums.unrealengine.com/t/light-intensity-slowly-increasing-when-first-playing-the-scene/662665/5 "2023-06-29T15:10:38Z")

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faced the same problem on ue5.1

this video saved my nerves haha

[Disable Auto-Exposure (Eye Adaptation) Using New Min/Max EV100 Values in 5.1+](https://youtu.be/kNeM_6TWF6c)

maybe it can help someone else