# Air Bubbles Foam Trick in Blender

**URL:** <https://blenderartists.org/t/air-bubbles-foam-trick-in-blender/1634712>\
**Category:** Blender Tests\
**Tags:** water, simulation, shading, lighting, geometry-nodes\
**Created:** [March 20, 2026, 5:33pm UTC](https://blenderartists.org/t/air-bubbles-foam-trick-in-blender/1634712 "2026-03-20T17:33:49Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![CG-Man](https://blenderartists.org/user_avatar/blenderartists.org/cg-man/32/1243506_2.png) [@CG-Man](https://blenderartists.org/u/CG-Man)\
**Post date:** [March 20, 2026, 5:33pm UTC](https://blenderartists.org/t/air-bubbles-foam-trick-in-blender/1634712/1 "2026-03-20T17:33:49Z")

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![SAVE_20260320_235050](https://blenderartists.org/uploads/default/original/4X/b/3/e/b3e37739dc070b56c35b67f0c8ebc7525fad122d.jpeg)  
So couple days ago, I discovered a trick for faking larger foam bubbles by accident.  
Simulation was simulated with Storm HydroFX and the air bubbles are just particles that are simply duplicated and modified from foam particles.

 ![Foam Screenshot](https://blenderartists.org/uploads/default/original/4X/e/7/d/e7db1eb5e5e03ea369cd4e7e69e93d10debec897.jpeg)  
So the method I used was duplicating the foam particles, then reducing their amount with \*Delete Geometry" node and adjusting with “Random Value” node in Geometry Nodes. After that, I scaled them larger than the others. Using the same foam material, I changed the color to match the sand or water and made it slightly darker, so it appears more transparent compared to the surrounding foam particle.

From a distance at medium close up amd further, it convincingly looks like larger air bubbles within the foam!

 ![Beach Test Render](https://blenderartists.org/uploads/default/original/4X/5/1/8/518fb78767815b327993cda1aab921b734342f9e.jpeg)  
So this is a test render for my personal project

I spilled the setup on my X post, well the foam on that video is still not that great :  
[https://x.com/i/status/2034453442408890388](https://x.com/i/status/2034453442408890388)

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**Author:** ![CG-Man](https://blenderartists.org/user_avatar/blenderartists.org/cg-man/32/1243506_2.png) [@CG-Man](https://blenderartists.org/u/CG-Man)\
**Post date:** [March 24, 2026, 1:22pm UTC](https://blenderartists.org/t/air-bubbles-foam-trick-in-blender/1634712/2 "2026-03-24T13:22:57Z")

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The water simulation is simulated with Storm HydroFX

> **[HydroFX 1.0 - Storm | The Simulation Tool](https://storm-vfx.com)**
>
> New GPU accelerated water solver 1.0 available now!

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**Author:** ![Jay3](https://blenderartists.org/user_avatar/blenderartists.org/jay3/32/1108173_2.png) [@Jay3](https://blenderartists.org/u/Jay3)\
**Post date:** [March 24, 2026, 6:02pm UTC](https://blenderartists.org/t/air-bubbles-foam-trick-in-blender/1634712/3 "2026-03-24T18:02:39Z")

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Cool ngl tho

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**Author:** ![CG-Man](https://blenderartists.org/user_avatar/blenderartists.org/cg-man/32/1243506_2.png) [@CG-Man](https://blenderartists.org/u/CG-Man)\
**Post date:** [March 25, 2026, 10:54pm UTC](https://blenderartists.org/t/air-bubbles-foam-trick-in-blender/1634712/4 "2026-03-25T22:54:37Z")

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Thank you, it’s pretty good for medium close up and further. But not too close