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Chapter 13. Super-imposing Clips

Chapter 13. Super-imposing Clips

In Chapter 5, you learned that you can have as many as 99 video tracks in the timeline. Here's where you start using them—at least, some of them.

By layering clips and adjusting their opacity, you can fade one image into another, or blend several images together. Other transparency settings allow you to make certain parts of an image transparent—based on the image's brightness, or color, for example. Or the transparent areas can be determined by the clip's alpha channel, or even by a separate clip. With Premiere's fade and transparency controls, you can superimpose a title over another clip, or composite a subject shot against a bluescreen with another background.

The Transparency Settings dialog box hasn't changed at all since earlier versions of the program. And of course, all the principles behind superimposing clips still hold true.

But as you learned in Chapter 6, "Editing in the Timeline," the timeline's superimpose tracks and fade controls have evolved. Starting with version 5, higher superimpose tracks appear on higher tracks, and are initially labeled Video 2 and up. Premiere 5 also introduced the ability to adjust the video fade controls in increments of 1 percent. Premiere 6 adds one more change to the timeline, requiring you to toggle between viewing effect keyframes and video fade handles. Even if you haven't used Premiere for a while, it should be easy to adapt to the changes.

Like all effects, superimposed clips must be previewed (see Chapter 9). The final results depend on the image quality of the source clips as well as on the preview or output quality settings. As usual, there is a direct correlation between quality and processing time.


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