User Guide

Canvas 12 User Guide
To turn off the transparency preview:
Press the Asterisk (*) key, or choose Hide Transparency Preview in the context menu.
To restore the transparency preview:
Choose Show Transparency Preview in the context menu. If you don’t choose the command,
Canvas restores the preview setting each time you leave edit mode.
To set the Transparency preview:
Choose File | Configuration Center. Open the Screen Rendering manager and select an option in
the Transparency area. Click Background Preview to preview background objects only. Click Total
Preview to preview background and foreground objects. Click No Preview to display transparent
objects against a checkerboard pattern for editing.
If you select the No Preview preference, you can’t use the context menu to change the
preview while you edit an object.
The preview preference affects what you see when you paint in a transparent paint object or edit any
paint object. If objects are in front of the paint object, you can see the objects while editing if you
select Total Preview. If you select Background Preview or No Preview, foreground objects are not
displayed when you edit a paint object or a channel mask.
Channel masks
A channel mask is a special channel that defines transparency in an object. While channels are
typically associated with paint objects, you can apply a channel mask to any type of object.
Vector Object
Channel mask
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