
96 Chapter 3 Depth Compositing
To view the Z channel of an image:
1 Load the balloons node into the Viewer.
2 Press and hold the Viewer Script button, then choose the View Z button from the pop-
up menu.
The Viewer displays the Z channel embedded in the balloons.iff file.
3 To see the numerical Z values, right-click the View Z button, then choose Load Viewer
Script Controls into Parameters2 Tab from the shortcut menu.
4 In the Parameters2 tab, set the floatZinA parameter to Original or Distance.
The parameters for the View Z script also include display options to normalize Z values
for Maya or 3ds Max files, and to adjust the depth range.
5 In the Viewer shelf, click the View Channel button to toggle to alpha channel view. The
Viewer displays an inverted view of the Z channel for balloons.iff.
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