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- About Keying
- Getting Started
- Changing the Background Color
- Adding the Foreground Subject
- Creating a Garbage Mask
- Applying the Color Difference Key Effect
- Choking the Matte
- Removing Spill
- Keying Out a Background with the Keylight Effect
- Adjusting Contrast
- Adding the Background Animation
- Adding the Title
- Adding the Animated Logo
- Copying Effects Across Two Layers
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Creating a Garbage Mask
There's no limit to the number of garbage masks you can have in a composition. In fact, on some complex shots it's common to have multiple garbage masks isolating limbs, faces, hair, or different subjects in the scene.
- Press the Home key to make sure that the current-time indicator is at the beginning of the time ruler.
- Select the Pen tool in the Tools panel.
- Using the Pen tool, click to place vertices around the actor until you have enclosed her completely (see Figure 5). Double-click the last vertex.
- To make sure that your garbage mask isn't too tight, drag the current-time indicator across the time ruler and make sure the actor doesn't move out of the masked area. If she does, switch to the Selection tool and adjust the vertices.
- Choose File > Save to save your work.
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