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Keying in After Effects CS3

  • Article is provided courtesy of Adobe Press.
  • Date: Nov 12, 2008.

Contents

  1. About Keying
  2. Getting Started
  3. Changing the Background Color
  4. Adding the Foreground Subject
  5. Creating a Garbage Mask
  6. Applying the Color Difference Key Effect
  7. Choking the Matte
  8. Removing Spill
  9. Keying Out a Background with the Keylight Effect
  10. Adjusting Contrast
  11. Adding the Background Animation
  12. Adding the Title
  13. Adding the Animated Logo
  14. Copying Effects Across Two Layers

Article Description

Does the idea of keying conjure up images of a meteorologist on the evening news, or a shooting technique used in motion pictures? With After Effects, even the simplest, least-expensive project can take advantage of keying. The Adobe Creative Team takes us through a step-by-step example of this technique.

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Adding the Animated Logo

Next, you'll import a logo into this project and add it to the composition.

  1. Bring the Project panel forward and double-click an empty area in it to open the Import File dialog box.
  2. Navigate to the AECS3_CIB/Lessons/Lesson09/Assets folder. Select the Channel5_logo.aep file, and then click Open.

    When you import a project, After Effects creates a folder for it in the Project panel that contains the composition and its associated media files.

  3. Expand the Channel5_logo.aep folder in the Project panel to list its contents (see Figure 34).
    Figure 34

    Figure 34

  4. Press the Home key to make sure that the current-time indicator is at the beginning of the time ruler.
  5. Drag the Logo/Channel 5 news composition from the Project panel to the Timeline panel, and place it at the top of the layer stack (see Figure 35).
    Figure 35

    Figure 35

14. Copying Effects Across Two Layers | Next Section Previous Section

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