Changing the speed of motion

You can change the speed of motion by positioning motion keyframes along the timeline. Keyframes that have been added to the motion path are represented on the timeline below the path. The length of the timeline represents the duration of the clip.

The timeline also includes a control for specifying the view of time. Clicking the two red arrows to the right of the timeline toggles between the source clip's time display and the Timeline window's time display. Use this control to synchronize motion or specify motion at an exact point in time. See Specifying an exact time for motion.

To change the speed of the motion:

1 Select the motion keyframe in either the path or the timeline in the Motion Settings dialog box. You can also press Tab or Shift+Tab to select each motion keyframe in succession. A black downward arrow indicates which keyframe is selected in the timeline.

2 Drag the arrow to the left or right. Dragging the arrow closer to another motion keyframe increases the speed between the two keyframes; dragging it farther away from a keyframe decreases the speed between the keyframes.

To smooth sharp changes in direction, rotation, and distortion:

Click Smooth Motion and choose a smoothing option. Smooth Motion provides the smallest amount of smoothing, and Averaging-High provides the greatest amount of smoothing.

Animating a Clip > Animating a clip's motion > Changing the speed of motion