Drawing masks using the freehand mask tool – Apple Motion 3 User Manual
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Chapter 12
Using Shapes and Masks
Immediately after finishing a shape, the Shape HUD appears and the Adjust Control
Points tool is selected, which allows you to edit the shape you’ve just created.
Drawing Masks Using the Freehand Mask Tool
This section describes how draw a freehand mask. Like the Paint Stroke tool, the
Freehand Mask tool allows you to create a shape in one movement, rather than
drawing the shape in a point-by-point fashion (like a Bezier or B-Spline shape). It is
recommended to use a stylus and tablet when using the Mask Freehand tool. For more
information on drawing masks, see “
Masking Layers to Create Transparency
To draw a freehand mask:
1
Select the layer you want to mask, click the Mask tool in the Toolbar, then choose the
Freehand Mask tool.
The Freehand Mask Tool HUD appears.
2
Adjust the controls in the Freehand Mask Tool HUD.
 To change the blend mode of the mask before it is drawn, use the Mask Blend Mode
pop-up menu in this HUD.
 Adjust the Feather slider to soften the mask. Positive values spread the feathering
outward, while negative values feather the shape inward.
3
Touch the stylus on the tablet to begin drawing the mask in the Canvas (if using a
mouse, click in the Canvas).
Freehand Mask tool
Original image before masking