One of my favorite expressions in After Effects is the time expression.

However, the random expression can be kinda confusing if you're new to expressions in after effects. The Best 10 After Effects Expressions. You can use the Expression Language menu at any time to insert methods and attributes into an expression, and you can use the pick whip … This can be extremely useful in some cases, especially when creating After Effects templates. Deep Glow gives you the best looking glow right out of the box, even whilst working in a non-linear color space. In this short tutorial, you’ll learn how to easily use the checkbox expression controller to turn layers on and off throughout your After Effects projects.

There are many applications were the random expression can help ease the burden of small tedious animation tasks that slowly eat at your time animating. You don’t only have to use the eye icon to turn your layers on and off in After Effects. If you don't learn how, you'll be stuck copying and pasting layers over and over, which can be incredibly messy.

How to Loop an Animation in After Effects CS5: All After Effects users will eventually need to learn how to loop animations. Really quick for those who are new to After Effects so what is an after effects expression?

While you may think you know how to use the time expression in After Effects, I've found that there's more to this simple chunk of code than meets the eye. It features intuitive compositing controls to assist in refining your glow results. The random expression in After Effects is both a versatile and essential. Deep Glow is also GPU accelerated for speed and features handy downsampling and quality controls which can also be leveraged to achieve unique results (grainy or stylised glows). An After Effect expression is a programming Javascript language code that you insert in any “Time-Vary stop watch” by pressing Alt-Click. Use the After Effects expression elements along with standard JavaScript elements to write your expressions.