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QuickTip – Creating Circular And Spiral Motion Paths


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This post is part of a series called The Complete Introduction to Particle Emitters.
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Here's a simple expression, using a little bit of mathematics, that will let you create circular and spiral motion paths. The expression can be applied to anything in After Effects with a 'position' property to create a variety of effects. Here it's used with a light and Trapcode Particular.