- Understanding Interpolation
- Interpolation Types
- Specifying the Default Spatial Interpolation
- Specifying Spatial Interpolation in the Motion Path
- Using the Graph Editor: An Overview
- Understanding Value and Speed Graphs
- Viewing Property Graphs
- Specifying the Graph Type
- Viewing Optional Information in the Graph Editor
- Moving Keyframes in the Graph Editor
- Adding and Removing Keyframes in the Graph Editor
- Separating a Position’s Dimensions
- Setting a Keyframe’s Temporal Interpolation Type
- Adjusting Temporal Interpolation Manually
- Applying Keyframe Assistants
- Smoothing Motion with Roving Keyframes
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:
- In the Graph Editor, select the keyframes to which you want to apply a keyframe assistant (Figure 9.78).
- At the bottom of the Graph Editor, click the icon that corresponds to the keyframe assistant you want to use (Figure 9.79):
Figure 9.78 Select the keyframes you want to ease with a keyframe assistant. This keyframe uses linear interpolation.
- 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.