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8.Click the Compositing Mode button () on the title track and choose Source Alpha if your image has an alpha channel associated with it. If it does not, you may need to add a chroma key filter to the image and key out the background. For more information, see Chroma keying on page 264.

Note: The alpha channel is saved as a selection area in some programs. If you cannot save the alpha channel, use a black background and a mask will be created from the background. The alpha channel of TGA images may not be detected automatically. For more information, see Modifying media file properties on page 239.

Fading titles

Another common technique is to fade a still title in and out. You can create this effect by using an opacity envelope on a title event. For more information, see Using opacity envelopes on page 177.

You can also create multiple title images and then use crossfades or custom transitions between them. For more information, see Using transition effects on page 268.

Adding closed captioning to Windows Media Video (WMV) files

Closed captioning makes your final video accessible to a wider audience. You can use text commands to add captions line-by-line to a Windows Media® Video (WMV) file, or for longer projects, you can add captioning from a script.

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USING ADVANCED VIDEO FEATURES