# Lightmap issue between 2 modular wall asset

**URL:** <https://forums.unrealengine.com/t/lightmap-issue-between-2-modular-wall-asset/98216>\
**Category:** Rendering\
**Tags:** unreal-engine\
**Created:** [August 10, 2017, 7:46pm UTC](https://forums.unrealengine.com/t/lightmap-issue-between-2-modular-wall-asset/98216 "2017-08-10T19:46:15Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![darthviper107](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/darthviper107/32/710746_2.png) [@darthviper107](https://forums.unrealengine.com/u/darthviper107)\
**Post date:** [August 10, 2017, 8:14pm UTC](https://forums.unrealengine.com/t/lightmap-issue-between-2-modular-wall-asset/98216/2 "2017-08-10T20:14:51Z")

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Can’t see the attachment yet but it’s probably this issue:

> **[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 — ue4community.wiki! You will be able to find content from the official...

Best fix is to combine simple meshes since it’ll fix that issue and it will improve performance by reducing draw calls.

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_[View the full topic](https://forums.unrealengine.com/t/lightmap-issue-between-2-modular-wall-asset/98216)._