<p>You could do this using the built in Foam particle render - it does have basic collision avoidance</p>
<p><a href="https://helpx.adobe.com/after-effects/using/simulation-effects.html#foam_effect" rel="nofollow noreferrer">https://helpx.adobe.com/after-effects/using/simulation-effects.html#foam_effect</a></p>
<p>You would get a better effect with a physics-based simulator, in 2D using <a href="https://www.motionboutique.com/newton-physics-simulator-engine-after-effects/" rel="nofollow noreferrer">Newton</a>, in 3D using Cinema4D or Blender.</p>

CC BY-SA 4.0
2018-10-19T06:48:18.687Z
2021-12-03T09:21:22.287Z
2021-12-03T09:21:22.287Z
tomh
<p>I want Particular in After Effects to animate a flow of particles moving from left to right and bouncing into the perimeter of the mask space around the EXPO logo. Is this possible to create in Particular and if so please tell me how to do it?</p>
<p><a href="https://i.sstatic.net/Pq9G9.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/Pq9G9.png" alt="enter image description here" /></a></p>
<p>Many thanks.</p>

<after-effects>
Particles flowing around a masked area
Ad God
# Particles flowing around a masked area

(Asked by: username_0 on 2018-10-09)

I want Particular in After Effects to animate a flow of particles moving from left to right and bouncing into the perimeter of the mask space around the EXPO logo. Is this possible to create in Particular and if so please tell me how to do it?

[![enter image description here](https://i.sstatic.net/Pq9G9.png)](https://i.sstatic.net/Pq9G9.png)

Many thanks.

**Tags:** after-effects


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## 1 answers

### Answer by username_1 on 2018-10-19. Score: 2

You could do this using the built in Foam particle render - it does have basic collision avoidance

<https://helpx.adobe.com/after-effects/using/simulation-effects.html#foam_effect>

You would get a better effect with a physics-based simulator, in 2D using [Newton](https://www.motionboutique.com/newton-physics-simulator-engine-after-effects/), in 3D using Cinema4D or Blender.


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