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Chapter 7. Properties and Keyframes > Controlling Layer Properties with Keyfram...

Controlling Layer Properties with Keyframes

Animation results from changing the properties of layers over time. For example, you create motion by changing the position of a layer from one point in time to another. In After Effects and other programs, you define and control these changes with keyframes.

A keyframe defines the value of a property at a specific point in time. When you create at least two keyframes with different values, After Effects interpolates the value for every frame between the keyframes. In other words, After Effects calculates how to create a smooth transition from one keyframe to another—often, literally, how to get from point A to point B (Figure 7.48).


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