User Guide

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ADOBE GOLIVE CS2
User Guide
To add and apply three-source filter tracks
Before you add a three-source filter track, add the three video tracks that you want to use as sources for the filter
track.
1 Drag a Three-Source Filter Track icon from the QuickTime set of the objects toolbox to the bottom of the track
list area of the Timeline Editor.
Note: Youmustpositionthe filter trackatthe bottom of thetrack list in theTimelineEditortoassign it to thetop of the
layering order (layer 1).
2 Select the three-source filter track in the Timeline Editor and display the Three Source Filter Track Inspector.
3 From the Source A menu, choose one of the video tracks that you want to apply the three-source filter track to.
4 From the Source B menu, choose the other video track that you want to apply the three-source filter track to.
5 From the Luma Matte menu, choose the video track you want to use to control how the source A and B video
tracks blendovereachother.(To seethe effect more clearly, use a high-contrast grayscale video as the Luma Matte.)
6 Select the three-source filter sample in the track content area of the Timeline Editor. (If necessary, expand the text
track to display the samples.)
7 In the Three-Source Filter Sample Inspector, click the Select button.
8 In the Select Effect dialog box, do one of the following:
• Choose a matte from the Matte menu and, if necessary, select parameters for the effect.
• Click Save to save the effect as a .qfx file for later use.
• Click Load to load a previously saved effect.
9 Click OK. GoLive labels the three-source filter sample bar in the Timeline Editor with the name of the effect.
10 To add other three-source filters that appear at different times in the movie, use the Create Sample tool to
create new three source filter samples.
See also
“To set the layering order of tracks” on page 533
“Samples” on page 529
QuickTime one-source filter effects
When setting effects for one-source filters, you can set the following filter effects in the Select Effect dialog box:
Alpha Gain Manipulates the alpha channel of a single track. This operation is commonly applied before passing the
track to the Alpha Compositor effect. You can set these options:
• Bottom pin The minimum value that the alpha channel can take after the gain and offset parameters have been
applied.
• Top pin The maximum value that the alpha channel can take after the gain and offset parameters have been
applied.
• Gain The value multiplied by the original alpha channel value.
• Offset The value added to the old alpha channel, after it has been multiplied by the gain parameter.
Blur Applies a convolution blur effect to a single track. You can control the amount of blurring. The larger the value,
the longer the effect takes to run and the greater the degree of blurring.