# Volumetric light ghost trail issue (still no fix for it?)

**URL:** <https://forums.unrealengine.com/t/volumetric-light-ghost-trail-issue-still-no-fix-for-it/492710>\
**Category:** Rendering\
**Tags:** unreal-engine, volumetric-fog\
**Created:** [January 31, 2022, 10:31am UTC](https://forums.unrealengine.com/t/volumetric-light-ghost-trail-issue-still-no-fix-for-it/492710 "2022-01-31T10:31:09Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![YYTSSLN](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/yytssln/32/547866_2.png) [@YYTSSLN](https://forums.unrealengine.com/u/YYTSSLN)\
**Post date:** [August 19, 2024, 3:15am UTC](https://forums.unrealengine.com/t/volumetric-light-ghost-trail-issue-still-no-fix-for-it/492710/5 "2024-08-19T03:15:57Z")

</div>

maybe you can try this tutorial,it work for me:  
Creating a photorealistic rain scene in Unreal Engine lumen tutorial

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/8/6/c86ccee9635f6f96e138bdb77f24de811913ae40.jpeg "Creating a photorealistic rain scene in Unreal Engine | lumen tutorial") ](https://www.youtube.com/watch?v=FTrCevoXqaA&t=33s)

Cinematic Fog BP:

> **[cinematic\_fog.uasset](https://drive.google.com/file/d/1NaUrkpTr01cHjTglJvavCQy61eNlesyD/view?usp=share_link)**
>
> Google Drive file.

If you have problems using it for versions under 5.1. Try packing those cVars into a blueprint.

r.VolumetricFog.TemporalReprojection 1  
r.VolumetricFog.GridSizeZ 256  
r.VolumetricFog.Jitter 1  
r.VolumetricFog.GridPixelSize 4  
r.VolumetricFog.HistoryWeight 0

 ![Creating a photorealistic rain scene in Unreal Engine - lumen tutorial.mkv_20240818_133739.441](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/c/e/cce55b359a3171b78459c905bb15153b3daceae4.jpeg)  
 ![Creating a photorealistic rain scene in Unreal Engine - lumen tutorial.mkv_20240818_133742.159](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/5/c/e5c11f4beb95b17e668d7a1102adc70e16ca6daf.jpeg)  
 ![Creating a photorealistic rain scene in Unreal Engine - lumen tutorial.mkv_20240818_133744.085](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/9/0/d9074aa337495c04f35fcf2de849fed0c15492fa.jpeg)  
 ![Creating a photorealistic rain scene in Unreal Engine - lumen tutorial.mkv_20240818_133751.353](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/6/3/463de83f7f0971cc5026ef5f4cb6d46a5b907e9e.jpeg)  
 ![Creating a photorealistic rain scene in Unreal Engine - lumen tutorial.mkv_20240818_133814.958](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/8/a/f8aeec9f1ca65f6622dd53f2812e0c7a96a60c6f.jpeg)

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