# Shadows very weird after lights building! Please Help!! **URL:** \ **Category:** Rendering\ **Tags:** unreal-engine\ **Created:** [September 6, 2016, 4:58am UTC](https://forums.unrealengine.com/t/shadows-very-weird-after-lights-building-please-help/73008 "2016-09-06T04:58:23Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![vsalles](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@vsalles](https://forums.unrealengine.com/u/vsalles)\ **Post date:** [September 6, 2016, 4:58am UTC](https://forums.unrealengine.com/t/shadows-very-weird-after-lights-building-please-help/73008/1 "2016-09-06T04:58:23Z")
I am new to Unreal Engine, sorry if is a stupid thing. Anyone have an idea about what’s happening in my project? ![Sem título2.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/3X/6/8/68f468d8182b04a2bd848f1fe479fb33dd6fe4f7.jpeg) ![3fc9e25e9ad0a987bdf68fe70079c558a8b8a6fd.jpeg](https://d1ap1mz92jnks1.cloudfront.net/images/transparent.png) Thank you. ---
**Author:** ![Tim\_Hobson](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Tim\_Hobson](https://forums.unrealengine.com/u/Tim_Hobson)\ **Post date:** [September 6, 2016, 1:00pm UTC](https://forums.unrealengine.com/t/shadows-very-weird-after-lights-building-please-help/73008/2 "2016-09-06T13:00:34Z")
You will need to adjust the lightmap resolution for your ground mesh/landscape. It’s too low to capture the detail needed. > **[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...