Graphics Programs Reference
In-Depth Information
You can see four additional channel sets: BG1, BG2, BG3, and Fly Ginza. Let's
look at one of them.
4. From the left-most Viewer channel buttons, click BG3 ( FIGURE 11.31 ).
Figure 11.31. The channel set BG3 is exposed.
I don't remember seeing this image in the final composite. Let's figure this out as
you go.
5. Go back to viewing the RGBA channel set in the Viewer.
To split this into separate layers, you will use a few Shuffle nodes.
6. Click Read3 and insert a Shuffle node after it.
7. Choose BG1 from the In 1 drop-down menu.
 
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