2011

Table Of Contents
NOTE If the top layer has an embedded alpha channel, it is shown as black. You
can connect the same composition to the Matte channel to achieve the desired
result.
The 2D compositor is a super tool because it contains a separate 2D
Compositor Layer tool inside the tool. A super tool is identified in the Tools
tab by a spherical iconsee
Tools, Views & Pick List tabs on page 30.
To composite two or more layers:
1 Drag the 2D Compositor tool to the dependency graph in the Schematic
view and connect an image or tool output to the Layer 1 Back input tab.
This is the background for the first layer.
NOTE If you drop a 2D Compositor tool onto an existing connection between
two nodes, the existing composition becomes the Layer 1 background input.
2 Connect a composition to the Layer 1 Front input. This is the image you
want to have on top of the background.
3 Connect a composition to the Layer 1 Matte input. This image will
determine what portions of the background are visible if the image does
not have an embedded alpha channel.
340 | Chapter 16 2D Compositing