Apple Final Cut Pro 5 User Manual download pdf (Page 237)

Compositing and Special Effects 237

6 Drag the clip to a new position. Final Cut Pro automatically adds a new keyframe.

7 Repeat steps 5 and 6 to add as many keyframes as you want.

Editing a Motion Path

You can edit a motion path directly in the Viewer or Canvas by moving or deleting motion-

path keyframes. Because a motion path deﬁnes spatial as well as temporal changes, the

playhead doesn’t need to be over a keyframe for you to be able to move or delete it, nor does

the playhead location prohibit you from adding a motion-path keyframe.

Creating Curves and Corners Along a Motion Path

By default, when you create a motion-path keyframe, it is a corner. A corner creates an abrupt

change in direction. You can create a smooth change by converting the corner to a curve

through the shortcut menu. Curves can also be converted to corners.

Curve points have Bezier handles that enable you to shape the curve. They also include ease

handles that you can use to control the speed of the clip as it approaches and leaves the

keyframe. For more information, see “Controlling Speed Along a Motion Path,” next.

To toggle a keyframe between a corner and a curve:

Control-click a keyframe in the Viewer and choose Smooth or Corner from the shortcut

menu. In the Canvas, Control-click a keyframe in wireframe mode and choose Ease In/Ease

Out, Linear, or Make Corner Point.

To convert a curve point into a corner point, Command-click and drag a Bezier handle.

Controlling Speed Along a Motion Path

The speed at which a clip travels along a motion path is determined by the spatial and

temporal difference between keyframes. For example, you can increase the speed of a clip

between two keyframes by moving the keyframes further apart without changing their

location in time. Thus, the clip travels further in the same amount of time.

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Apple Final Cut Pro 5 User Manual Page 237