2017

Creating 3D Path Splines
You can draw open or closed splines to use as your 3D path.
To create a spline:
1 Make sure that the Tools box is in Draw Shape mode (this is the default when you first add a 3D Path
node).
2 In the image window, click to add vertices.
TIP Shift-drag to add freehand segments to the spline. Vertices are added where you drag, and appear
when you release Shift. After closing or finishing the spline, you can use the Lasso Fit field to increase or
decrease the number of vertices that define the freehand segments of the spline.
3 To complete your spline, do one of the following:
■ Click the first vertex to close the spline.
■ Click Finish in the 3D Path menu to leave the spline open. If you decide later that you want to
close the spline, enable Closed in the 3D Path menu.
4 Make sure that the Tools box is in Select mode, so that you do not add more vertices by mistake.
When the spline is closed or finished, its vertices and tangents can then be edited.
Editing Splines
Use the settings in the 3D Path tab to work with the spline you created. You edit splines in the same way
as you edit garbage masks, working with their vertices and tangents. See
Manipulating Vertices and Tangents
(page 752).
Finish button Click to finish an open spline.
Closed button Enable to close a spline from the last to first point.
Motion Blur button Enable to use a motion blur effect for the selected path (can only be used if the global
Motion Blur is enabled in the Action Setup menu).
Constant Shape button Enable to modify the spline's shape without setting keyframes. This forces all
animatable parameters to be set for the whole clip rather than for only the current frame. It also removes
any existing keyframes and applies the shape of the current frame to the rest of the clip.
Action 3D Paths | 613