As you've been adding clips to the Timeline, you've probably noticed a number appearing above them (Figure 6.69 ).
(See color insert.)
This is called a
Timeline slice and it's part of the media management system's way of keeping track of what's on the Timeline. Every time you add a clip and every time you use the razor blade, a new slice is created. Each slice can be manipulated independently.
The more slices that exist on the Timeline, the slower Liquid Edition will respond to your commands. Once you reach a Timeline that contains many hundreds of slices (easily done on an hour-long project), you will see a significant lag when you add clips or trim clips. You can avoid this by making sure you create a new Sequence for every separate part of your Project. This will at least cut down on the slice count while you are editing. During the final assembly, there is no way to avoid a high slice count, but at that stage, most of your fine-tuning should have been completed.
The Color of SlicesTimeline slices come in five colors; each one represents the state of the clips directly below that slice.
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Background RenderingAll rendering in Liquid Edition (yellow or red slices) is carried out in the background. In practical terms, this means you can carry on using the program, opening new clips to edit, creating new titles, opening other FX windows, and so on, while the program carries on rendering anything you have already worked on. To see the progression of the background rendering, click once on the Sigma icon in the Liquid Edition taskbar Figure 6.70. The Render box.
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