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Applying Keyframe Assistants

Adding slight deceleration to soften or ease the speed into and out of keyframes is such a commonly used technique that After Effects has provided the following keyframe assistants to automate the task:

  • Easy Ease—Smooths both the keyframe’s incoming and outgoing interpolation.
  • Easy Ease In—Smooths the keyframe’s incoming interpolation.
  • Easy Ease Out—Smooths the keyframe’s outgoing interpolation.

Try employing a keyframe assistant and observing its effects on a layer’s property graph and animation.

To apply a keyframe assistant in the Graph Editor:

  1. In the Graph Editor, select the keyframes to which you want to apply a keyframe assistant (Figure 9.78).
  2. Figure 9.78 Select the keyframes you want to ease with a keyframe assistant. This keyframe uses linear interpolation.

  3. At the bottom of the Graph Editor, click the icon that corresponds to the keyframe assistant you want to use (Figure 9.79):
    • Easy Ease
    • Easy Ease In
    • Easy Ease Out

    The icons and graphs associated with the selected keyframes reflect your choice, and the animation plays accordingly (Figure 9.80).

    Figure 9.79 In the Graph Editor, select the icon that corresponds to the keyframe assistant you want to apply.

    Figure 9.80 The selected keyframe’s interpolation is adjusted according to your choice. The linear interpolation pictured in Figure 9.78 looks like this after you apply keyframe assistants.

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