Join Chris Meyer for an in-depth discussion in this video Expression controls, part of After Effects Apprentice 09: Expressions.
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In the previous movie, we showed you how to write a Wiggle expression for…virtually any parameter inside After Effects and tantalized you with the…various wiggle animation presets to put a form of user interface onto the Wiggle expression.…Next, I'd like to show you how you can create your own user interface for expressions.…To do that, let's look a different example. Go back to the Project panel and…this time open up 06-Effects*starter.…I am going to press 0 on numeric keypad to RAM Preview, and what we have here is…some text that's being twisted in a random wiggly fashion.…
To see what's going on, we'll select that text layer and type EE, two Es in quick…succession, to reveal any expressions applied to that layer.…Indeed, I see that wiggle has been applied to the Angle expression for the Twirl Effect.…I'll go ahead and press F3, just to open this up in the Effects Control panel.…Now that you know how wiggle works, you see we are wiggling at three times a…second, with an amount that can range as far as plus or minus 60 degrees.…
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