User Manual

X, Y, and Z Rotation
Use these three controls to adjust the rotation angle of the mask along any axis.
Fill Method
The Fill Method menu offers two different techniques for dealing with overlapping regions of a
polyline. If overlapping segments in a mask are causing undesirable holes to appear, try
switching the setting of this control from Alternate to Non Zero Winding.
Right-Click Here for Shape Animation
By default, all B-Spline masks are animated when they are created. The initial keyframe is set to
the current time, and any changes to the shape at different times will create new keys.
Right-clicking on this label will display a contextual menu that offers options for removing or
re-adding animation to the mask, or publishing and connecting the masks.
Adding Points
Adding Points to a B-Spline effect mask is relatively simple. Immediately after adding the node
to the Node Editor, there are no points, but the tool will be in Click Append mode. Click once in
the viewer wherever a point is required for the mask. Continue clicking to draw the shape
of the mask.
When the shape is complete, click on the initial point again to close the mask.
When the shape is closed, the mode of the polyline changes to Insert and Modify. This allows
you to add and adjust additional points on the mask by clicking the spline segments. To lock
down the mask’s shape and prevent accidental changes, switch the Polyline mode to Done
using the Polyline toolbar or contextual menu.
Adjusting Tension on a B-Spline
The tension of the control point determines the smoothness of a B-Spline. To adjust the tension
of a B-Spline’s control points, select the point in the viewer, hold down the W key and drag the
mouse pointer to the left and right to increase or decrease the tension of the curve through
that point.
B-Spline Toolbar
When a B-Spline mask is selected in the Node Editor, a toolbar appears above the viewer with
buttons for easy access to the modes. Position the pointer over any button in the toolbar to
display a tooltip that describes that button’s function.
Chapter – 97 Mask Nodes 2107