# How to get spherical extinction for volumetric fog

**URL:** <https://forums.unrealengine.com/t/how-to-get-spherical-extinction-for-volumetric-fog/2501295>\
**Category:** Rendering\
**Tags:** unreal-engine, Rendering, volumetric-fog, Blueprint, question, CPP\
**Created:** [May 10, 2025, 7:20pm UTC](https://forums.unrealengine.com/t/how-to-get-spherical-extinction-for-volumetric-fog/2501295 "2025-05-10T19:20:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Dorkishdude](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/dorkishdude/32/952001_2.png) [@Dorkishdude](https://forums.unrealengine.com/u/Dorkishdude)\
**Post date:** [May 10, 2025, 7:20pm UTC](https://forums.unrealengine.com/t/how-to-get-spherical-extinction-for-volumetric-fog/2501295/1 "2025-05-10T19:20:51Z")

</div>

Problem:  
Spherical extinction of volumetric fog is not working, even though I have copied my blueprint exactly from the feature highlight.

Feature Highlight:

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/2/2/72244b4f4dcccc20e3240877b76897ed3404c62f.jpeg "Volumetric Fog | Feature Highlight | Unreal Engine") ](https://www.youtube.com/watch?v=N4mkgbwLg7U&t=1201)

My material I have setup:

 ![picture](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/0/e/c0e94c8c31527377c1940e0b806f79c899c5b9ab.png)

What is rendered:

 ![picture2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/4/c/14cf6e7bbc426d548548224a3cbac930064c5c48.jpeg)

Desired:  
A spherical fog that wraps over another sphere like an atmosphere.

I am not using the built in atmospheric system because it only supports one atmosphere at a time. I need multiple atmospheres to be on the screen at the same time.

Any feedback would be greatly appreciated!