# How to adjust Niagra Fluids Bounding Box

**URL:** <https://forums.unrealengine.com/t/how-to-adjust-niagra-fluids-bounding-box/669626>\
**Category:** FX\
**Tags:** unreal-engine, question\
**Created:** [October 14, 2022, 6:25pm UTC](https://forums.unrealengine.com/t/how-to-adjust-niagra-fluids-bounding-box/669626 "2022-10-14T18:25:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SavageVFX](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@SavageVFX](https://forums.unrealengine.com/u/SavageVFX)\
**Post date:** [October 14, 2022, 6:25pm UTC](https://forums.unrealengine.com/t/how-to-adjust-niagra-fluids-bounding-box/669626/1 "2022-10-14T18:25:41Z")

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Similar to [this](https://forums.unrealengine.com/t/how-do-i-scale-up-and-hide-this-red-box-on-ue5-niagara-fluid-simulations/528129) question, I’d like to know not just how to hide the red box, but also how to shrink it so that I can preserve more of my voxels for where they are needed for my small gas simulation. If I could get some pointers there, that would be great!

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**Author:** ![ZenLeviathan](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/zenleviathan/32/551307_2.png) [@ZenLeviathan](https://forums.unrealengine.com/u/ZenLeviathan)\
**Post date:** [October 14, 2022, 11:12pm UTC](https://forums.unrealengine.com/t/how-to-adjust-niagra-fluids-bounding-box/669626/2 "2022-10-14T23:12:19Z")

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hey @SavageVFX  
I found a solution on the forums here:

> [@Scale a niagara particle system](https://forums.unrealengine.com/t/scale-a-niagara-particle-system/450101/12):
>
> Thank you vivekananda\_k, this works perfectly! For those who don’t know how to add a script to an emitter; Inside your content browser, right-click and choose FX - Niagara Module Script. Name it EasyScale\_MS. Open the file and select all the nodes and hit delete (Output will remain). Visit that link vivekananda\_k provided [Niagara System scale modular script posted by anonymous | blueprintUE | PasteBin For Unreal Engine](https://blueprintue.com/render/shm_t915/) (if the web page says can’t be reached, just refresh) and select all the n…

You should be able to add scale in the emitter UI.  
I hope this can help!  
-Zen

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<div class="post-metadata">

**Author:** ![SavageVFX](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@SavageVFX](https://forums.unrealengine.com/u/SavageVFX)\
**Post date:** [October 15, 2022, 7:20pm UTC](https://forums.unrealengine.com/t/how-to-adjust-niagra-fluids-bounding-box/669626/3 "2022-10-15T19:20:17Z")

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Hey, thanks I appreciate it! I guess I should clarify my question: I’d like to be able to resize the domain of the fluid simulation so that it can be more detailed (right now, most of the voxels are unused because the fire simulation is small but the domain is large):  
 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/a/2/7a2527260dbd6c4dc41f02ea31d26d888c92ca79.jpeg)

Let me know if you have any thoughts!

Thanks!