# Lighting change 4.24-\>4.26

**URL:** <https://forums.unrealengine.com/t/lighting-change-4-24-4-26/484536>\
**Category:** Rendering\
**Tags:** dark, unreal-engine, Rendering, Lighting, UE4, question\
**Created:** [June 7, 2021, 1:58pm UTC](https://forums.unrealengine.com/t/lighting-change-4-24-4-26/484536 "2021-06-07T13:58:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![GD\_vukmir](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GD\_vukmir](https://forums.unrealengine.com/u/GD_vukmir)\
**Post date:** [June 7, 2021, 1:58pm UTC](https://forums.unrealengine.com/t/lighting-change-4-24-4-26/484536/1 "2021-06-07T13:58:13Z")

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I upgraded the engine in my project from 4.24 to 4.26 and the lighting changed dramatically especially in darker scenes making the game unplayable.

_4.24 scene:_

 ![340905-424-jesus.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/2/5/825323e5e6e40bfce5d79bab6676b7b5101ed979.png)

_4.26 scene:_

 ![340906-426-jesus.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/9/c/7/9c73b4309113802087a957d17378890a7a6301cc.png)

_(screenshots are taken from the editor and it looks the same eg. on Xbox build)_

Is this caused by changes in the lighting model or could some project setting get changed in the upgrade process?

I fear that I will have to manually adjust lights in all scenes:((

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<div class="post-metadata">

**Author:** ![GD\_vukmir](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GD\_vukmir](https://forums.unrealengine.com/u/GD_vukmir)\
**Post date:** [June 9, 2021, 11:28am UTC](https://forums.unrealengine.com/t/lighting-change-4-24-4-26/484536/2 "2021-06-09T11:28:55Z")

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so the problem was this

> **[How Epic Games is handling auto exposure in 4.25](https://www.unrealengine.com/en-US/tech-blog/how-epic-games-is-handling-auto-exposure-in-4-25?sessionInvalidated=true)**
>
> Auto exposure in Unreal Engine 4.25.

the autoexposure has been changed in 4.25 → I have to manually adjust the postprocessing-autoexposure settings in all scenes