From the course: After Effects CC 2022 Essential Training

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Using expressions to loop animation

Using expressions to loop animation - After Effects Tutorial

From the course: After Effects CC 2022 Essential Training

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Using expressions to loop animation

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- After Effects offers users the ability to simplify and automate tasks using lines of code in a system called expressions. They can be used in place of key frames, or work in conjunction with them. Expressions can be daunting but it's helpful to see how the basics work and how they can speed up your workflow. Let's take a look. In this composition, I've got an animation of a wifi signal and it just animates on and animates off over the course of, what, 45 frames, 44 frames. Let's see how we can loop this. I'll nest this into a new composition here, this 03 comp. And here you can see that it only plays once. Let's use time re-mapping to get looping involved. Let's right-click on this layer and come up to time, enable time re-mapping. After Effects gives us two key frames for the start and the end. And we're going to manipulate these key frames by using expressions. To add an expression to a property, either…

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