Join Chris Meyer for an in-depth discussion in this video Managing expressions, part of After Effects Apprentice 09: Expressions.
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- [Instructor] Now before we go further,…let's show a few ways of managing Expressions.…This little equal sign is very important.…It shows that an Expression is active.…If I click on the equal sign it becomes not equal,…and that Expression is now temporarily…disabled for that layer.…On RAM preview, you'll see I still have my scale animation,…I just no longer have the rotation animation,…but if I want it back,…I'll click on this again…and turn that back on,…and now that Expression is in force again.…
If I indeed want to delete the Expression,…I neither select the text and backspace to delete it.…I'll undo,…or again, option or alt click on…the property to again delete that Expression.…I'll undo again.…Let's say that you want to reveal…the Expression supply tool layer.…Well, the same key that you used to reveal key frames,…u, will also reveal Expressions for a layer…and pressing u again and there's my Expressions.…
So u reveals both key frames and Expressions,…anything that's causing animation to happen.…Now, let's say I happen to have both…
The After Effects Apprentice series was created by Trish and Chris Meyer. These tutorials are designed for After Effects CS4 through CC, and can be used on their own or as a companion to the Meyer's book, After Effects Apprentice.
- Creating and managing expressions
- Linking together different parameters
- Randomizing a layer's movement
- Looping an animation
- Controlling multiple layers from a single source