Apple Motion 4 - Manual (Page 1070)

To draw a B-Spline shape
1 Click the B-Spline tool in the Toolbar (or press B).
B-Spline tool
Note: If the Bezier tool is selected, pressing B once selects the B-Spline tool. If another
tool is selected, such as the Text tool, press B twice to select the B-Spline tool. The B-Spline
Mask tool is located in the Mask tools section of the Toolbar.
B-Spline Mask tool
The B-Spline Tool HUD appears. (If it does not appear, press F7.) To change the color of
the shape before it is drawn, use the color controls in this HUD. Select the Outline checkbox
to create an outline with the shape. The Width slider adjusts the width of the outline.
Once the shape is created, the Shape HUD appears.
2 Click in the Canvas to draw the first point.
3 Continue clicking to draw additional points to define the shape you need.
Note: Press Shift while making a curved point to constrain its tangents to 45-degree
angles.
1070 Chapter 17 Using Shapes, Masks, and Paint Strokes