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Apple Motion 3 User Manual

Page 522

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522

Chapter 6

Keyframes and Curves

2

Identify the object where the keyframe is located.

3

Drag the keyframe to the left or right to move it forward or backward in time.

Although moving a keyframe in time does not change the parameter’s value, it can
have a significant effect on the nature of the animation. For example, if you have two
keyframes that animate an object from the top of the screen to the bottom over five
seconds, moving one of the keyframes forces the animation to occur more slowly (if
you drag them farther apart) or more quickly (if you drag them closer together).

When there are multiple keyframe values set in the same frame, you can choose any
value to edit individually, though the values are represented by a single keyframe
marker in the Timeline.

To edit a keyframe value already present in the Timeline:

1

Control-click the keyframe.

A shortcut menu appears. The first items in the list are the keyframe values for any
keyframes on that frame.

2

Choose the keyframe value you wish to edit.

3

Type a new value into the value field, then press Return.

Note: To exit an active value field without making any changes, press Esc.

Aligning Keyframes with Other Objects

One of the main advantages of manipulating keyframes in the Timeline is the ability to
line up a keyframe with another i

4

Identify the keyframe you want to move.