# Help: Particle System as Image Mask?

**URL:** <https://forum.kirupa.com/t/help-particle-system-as-image-mask/317703>\
**Category:** flash\
**Created:** [December 30, 2010, 3:00pm UTC](https://forum.kirupa.com/t/help-particle-system-as-image-mask/317703 "2010-12-30T15:00:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![loditn](https://avatars.discourse-cdn.com/v4/letter/l/8491ac/32.png) [@loditn](https://forum.kirupa.com/u/loditn)\
**Post date:** [December 30, 2010, 3:00pm UTC](https://forum.kirupa.com/t/help-particle-system-as-image-mask/317703/1 "2010-12-30T15:00:38Z")

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Hey guys, I’m a self proclaimed n00b when it comes to as3, but I’m learning rapidly. I followed this guide and created a great particle system: [http://www.actionscript.org/resources/articles/607/1/A-simple-particle-system-using-Actionscript-3/Page1.html](http://www.actionscript.org/resources/articles/607/1/A-simple-particle-system-using-Actionscript-3/Page1.html)

What I’d LIKE to do, if possible, is make those particles that are generated be the only part of an image that shows(mask). The tutorial contains a fla with a movieclip of a circle, two classes…particle and ball which call the movieclip and generate it on the stage.

Any help would be greatly appreciated 🙂