9 Using the Roto Brush Tool

Lesson overview

In this lesson, you’ll learn how to do the following:

  • Extract a foreground object from the background using the Roto Brush tool.

  • Correct the segmentation boundary across a span of frames.

  • Touch up a matte with the Refine Edge tool.

  • Freeze a matte across a clip.

  • Replace a background.

  • Animate properties for creative effects.

  • Track a face in footage.

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This lesson will take about an hour to complete. If you haven’t already done so, download the project files for this lesson from peachpit.com/AfterEffectsCIB2024, following the instructions in the Getting Started section under “Accessing the lesson files ...

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