# Problem with lightning/shadows

**URL:** <https://forums.unrealengine.com/t/problem-with-lightning-shadows/328250>\
**Category:** Rendering\
**Tags:** Shadows, unreal-engine, editor, Lighting, UE4, question\
**Created:** [August 10, 2015, 8:42pm UTC](https://forums.unrealengine.com/t/problem-with-lightning-shadows/328250 "2015-08-10T20:42:24Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![anonymous\_user\_2ed5b4c7](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2ed5b4c7](https://forums.unrealengine.com/u/anonymous_user_2ed5b4c7)\
**Post date:** [August 11, 2015, 9:36am UTC](https://forums.unrealengine.com/t/problem-with-lightning-shadows/328250/2 "2015-08-11T09:36:50Z")

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Hi!

I think, strange artifacts is a wrong Lightmaps UVs. How to fix Lightmaps UVs you can read in this thread

> **[Modular Asset Lighting Problem](https://forums.unrealengine.com/showthread.php?46269-Modular-Asset-Lighting-Problem)**
>
> Hello all! I just started working on my first set of modular assets (which are primarily different sized tiles) and I’ve gotten them to fit correctly and everything but now the problem is lighting. It is being lit differently on some tiles. Also,...

Additiaonal info about tweaking lighting:

> **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)**
>
> After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from...

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