AE: Expressions Basics

Get started working with expressions in After Effects. No prior experience with code required, and in a few minutes you'll be ready to work on your own to create new expressions and learn how to use functions you need as you go along.

AE: Using Text Animators

The expression mentioned:
if(textIndex % 2 > 0){selectorValue}else{-selectorValue}

AE: Building a Selection Box shaped by 2 Nulls with Expressions

We'll have 2 null objects in the scene that will define the corners of a box. Just like the clicks in creating a rectangle with the marquee tool, the first null defines the origin, and the other is the direction the box goes in. Take this as an exercise in understanding how expressions work with different properties, and hey, you could learn something useful.

So, let's figure this out.

Expressions Library

Welcome! Here you'll find pre-written expressions that you can copy into your projects. I've done my best to explain how they work! I'll update this post as often as I find new and useful expressions.

And remember to Save before applying.

You have been warned!