Corel Painter 2015 Betriebsanweisung PDF herunterladen (Seite 591)

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Alpha Channels | 563

Alpha Channels

Alpha channels, also referred to simply as channels, let you store and edit path-based and pixel-based

selections in an active document. Corel Painter stores only the current selection by default, therefore, when

you make a new selection, your previous selection is automatically lost. However, by saving the selection as

an alpha channel, you can retain the selection information and load it in the image whenever you need it.

The alpha channel is a grayscale image that stores 8 bits of information per pixel, which means that

each pixel can be assigned one of 256 levels of gray — from 0 (black) to 255 (white). White areas of the

channel are selected, and black areas of the channel are protected. Intermediate levels of gray are partially

protected. For example, areas that are 50% gray will allow 50% of the brushstroke or effect to get through

the channel to the image.

This section contains the following topics:

• “Creating and copying channels” (page 564)

• “Generating channels automatically” (page 565)

• “Importing and exporting alpha channels” (page 567)

• “Selecting and viewing channels” (page 567)

• “Setting channel attributes” (page 570)

• “Deleting and clearing channels” (page 571)

• “Editing channels” (page 571)

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Kommentare zu diesen Handbüchern

Chriscof 29 Apr 2024 | 02:09:55

Hello, im noob :)

Corel Painter 2015 Betriebsanweisung Seite 591

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