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Adding keyframes to a Value graph


    The pen tools provide the most flexible way to change temporal properties in the Value graph or a motion path. Editing with the pen tool is similar to modifying a path in a drawing application such as Adobe Illustrator. For more information on using the pen tools, see Drawing a Bezier mask with the pen tool.

    For best results with the pen tool, you should understand how Bezier interpolation affects the Value graph and the motion path. When you use Bezier interpolation on a graph or path, you can control the shapes of corners, making them into smooth curves or angled corners. See Bezier temporal interpolation.

To add a keyframe to a Value graph using the pen tool:

  1. In the Timeline window, display a layer property containing at least one keyframe.
  2. Click the triangle to the left of the property name to display the Value graph.
  3. Select the pen tool (the pen tool) from the toolbox.
  4. In the Timeline window, move the pen tool over the time on the Value graph where you want to add the new keyframe, and then click to add a new keyframe.