Learn about using the Pen tool to create custom masks for detailed work in your compositions.
  1. In Adobe After Effects, select a layer and select the Pen tool.
  2. Click on key points along the shape that you want to mask. Close off the mask by clicking again on the start point.
  3. Adjust the mask point by using the Selection tool. Click and drag points to adjust them.
  4. Select the Convert Vertex Tool in the Pen tool set and click to adjust the curve around each point. 
  5. Select the Add Vertex tool in the Pen tool set and click to add extra points.

Contributors: Infinite Skills, Jeff Sengstack

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