User Manual

To toggle between RGB and alpha channels in the active viewer:
 Click the Color button in the viewer toolbar to toggle between full RGB color and that
image’s alpha channel.
To toggle the channel that’s displayed in the active viewer:
 Click the arrow to the right of the Color button to choose a specific channel to view
from the list of available channels in the current image.
 Click the viewer you want to toggle, and press one of the following keyboard shortcuts.
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C - Full RGB color display
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R - Display red channel
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G - Display green channel
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B - Display blue channel
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A - Display alpha channel
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Z - Display Z-buffer channel
Viewing Auxiliary Channels
The viewers support RGBA and Z channels using keyboard shortcuts, but they support other
channels as well. File formats such as OpenEXR often include auxiliary image data that provide
more control and compositing options when working with rendered 3D images. To view
auxiliary image data in a viewer, click the arrow to the right of the RGB button to display the
pop-up menu or right-click in the viewer and choose an option from the Channels submenu of
the contextual menu.
The 3D Viewer
Building a composite in 3D space has different requirements from traditional 2D compositing.
When a node from the 3D category or some particle systems is selected, a 3D Viewer is used
to display the scene. The 3D Viewer shows a representation of a composite in a true GPU-
accelerated 3D environment.
For more information on 3D controls, see Chapter 76, “3D Compositing” in the DaVinci Resolve
manual or Chapter 25 in the Fusion Studio manual.
Panning, Scaling, and Rotating a 3D Viewer
For the most part, navigation in the 3D Viewer is similar to the navigation in the 2D Viewer.
Panning and zooming work with the same controls even though you’re moving within a 3D
space. However, when viewing a 3D scene, panning changes the point of view and thus the
center point for scaling and rotation, too. A combination of panning and rotation will allow you to
move the point of view anywhere in the scene.
Another small change is that there’s a lower limit to the scale of a 3D scene. Continuing to zoom
in past this limit will instead move (“dolly“) the point of view forward. The mouse wheel will move
forward slowly, and the keyboard will move more quickly.
Critically, the 3D Viewer gives you additional control to rotate the viewer within the three
dimensions of the scene to better see your scene from different angles as you work.
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