Apple Shake 4 - Manual (Page 556)

556 Chapter 20 Rotoscoping
Reordering Shapes
You can reorder multiple overlapping shapes to change the effect they have on the
alpha channel. For example, placing a black shape over a white shape lets you create a
transparent area, while placing a white shape over a black shape creates a solid region.
To change the order of multiple shapes in the same RotoShape node:
1 Right-click a shape’s transform control, or any of its main control points.
2 Choose one of the following options from the shortcut menu:
• Move to Back: The selected shape is put behind all other shapes in that node.
• Move Back: The selected shape is moved one level behind other shapes in that node.
• Move Forward: The selected shape is moved one level in front of other shapes in that
node.
• Move to Front: The selected shape is moved in front of all other shapes in that node.
Showing and Hiding Individual Shapes
Each shape in a RotoShape node is labeled in the Viewer with a number based on the
order in which it was created. You can use this information to show and hide individual
shapes. Hidden rotoshapes aren't rendered.
To hide and show shapes, do one of the following:
m Right-click any shape in the Viewer to display a shortcut menu with commands to hide
that shape, hide other shapes, or show all shapes.
m Right-click anywhere in the Viewer to display a shortcut menu that allows you to show
or hide any shape in that node by its label.
Locking Tangents
When the Lock Tangents button is turned on, the tangent angles are locked when the
control points are moved, rotated, or scaled.
When Unlock Tangents is selected, the tangent angles are unlocked. Select Unlock
Tangents when moving, scaling, or rotating to maintain the shape.
Copying and Pasting Shapes Between Nodes
There are several nodes that use shapes besides the RotoShape node. These include:
• LensWarp
• Morpher
• Warper