User Guide

Chapter 5: Painting And Image Editing
Active channels are shaded. Editing affects the active channels only. To make a channel active, click
the channel name.
Composite channel Select this channel to make all color channels visible and active.
Color channels Color channels appear below composite channels.
Alpha channels Alpha channels contain grayscale pixels which represent a selection.
Channel mask A special channel you can add to any object, a channel mask contains
grayscale pixels that represent transparency.
Floating Opacity If a selection is floating, drag the slider to change the opacity of the
selection.
Mode If a selection is floating, select a mode from the menu. The default mode
is Normal.
Preserve Visibility Select this option to preserve the transparency of clear and partially
transparent pixels when you edit an image.
Eye icon An eye indicates that a channel is visible. If a channel is not visible, click
or drag in the column to make it visible.
New icon Click to make a new alpha channel with default settings. Drag an alpha
channel here to duplicate it.
Save icon Click to save the current selection in an alpha channel. Drag a channel
here to make a selection in the image from the channel.
Trash icon Drag channels to the trash to delete them. You cannot delete color
channels.
Channel palette pop-up menu
The following commands appear in the Channel palette’s menu.
Palette Options: Lets you select the channel preview size.
New Channel: Creates a new alpha channel and lets you select channel options.
Duplicate Channel: Creates a new alpha channel from a single active color or alpha
channel. This command isn’t available if a composite channel or more than one channel is
active.
Delete Channel: Deletes the active alpha channel. You can’t delete color channels or a
composite channel.
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