System information
Adding track keyframes
1. Click the Expand/Collapse Track Keyframes button .
2. Double-click to add a keyframe to the track view. The keyframe will use the same settings and
interpolation curve as the previous keyframe.
Moving track keyframes
Drag the keyframe to a new position in the timeline. If track keyframe rows are collapsed, overlapping
keyframes will move together.
To move multiple keyframes, select the Envelope tool and create a time selection that includes the
keyframes you want to move. When you drag, all keyframes in the time selection will move together.
Changing the interpolation curve between keyframes
The interpolation curve determines the rate of temporal interpolation: the rate of motion between two
keyframes. To change the interpolation curve, right-click a keyframe and choose a command from the
shortcut menu:
If you want to adjust spatial interpolation—how motion occurs within a video image—change the
Smoothness setting in the Event Pan/Crop or Track Motion dialog. A Smoothness setting of 0
produces linear motion from one keyframe to the next. Increasing the setting produces a curved path.
For more information, see "Panning and Cropping Video Events" on page 275 and "Editing Track
Motion" on page 286.
Command Description Looks Like
Hold No animation will take place. The keyframe's settings will be maintained until
the next keyframe.
Linear Effect parameters are interpolated in a linear path.
Fast Effect parameters are interpolated in a fast logarithmic path.
Slow Effect parameters are interpolated in a slow logarithmic path.
Smooth Effect parameters are interpolated along a smooth, natural curve.
298CHAPTER 12