281
Adding track motion
The Track Motion window (accessible by clicking the Track Motion button 
on any video track) is used to move a video track across a background. This background can be a solid color, another video event, or an image.
The gray area in the center of the window (covered by the blue/gray rectangle) represents the actual screen or area that is visible in the movie. The area outside of the main screen, which is filled with dotted lines, is the general workspace. The video you are moving can be positioned off of the visible screen and then animated onto and across the screen. The dots are markers to help position the video window. If snapping is enabled, these serve as snapping points.
The main window allows you to control the placement, size, and orientation of the overlay video through time. The blue and gray rectangular overlay in the middle represents the video on the track. The selection box in the workspace is used to represent the orientation of the track.
You can also use 3D compositing to move tracks through space. For more information, see 3D Compositing on page 252.
Keyframe presets
Properties
Controls
Track area
Keyframe controller
Controlling track motion
1.Click the Track Motion button (
) on the track that contains the overlay that you want to animate. The Track Motion window is displayed.
2.Adjust the selection area to change the viewable area of the track and its position in space. Guides are displayed in bold to indicate how the track will be moved or rotated:
Moving closer to or farther | Dragging the track. | Rotating around the |
from viewer. Drag across |
| Z axis. |
corners to flip the track. |
|
|
3.Use the buttons at the top of the dialog to allow or prevent movement or scaling. For more information, see Changing editing options on page 282.
4.The track motion occurs instantly, and the results are updated in the Video Preview window.
CHP. 15 | ADDING VIDEO TRANSITIONS AND MOTION |