Corel Painter 2015 User's Guide download pdf (Page 601)

100

101

Alpha Channels | 573

In addition, you can introduce interesting effects by filling a channel with a pattern, gradient, or weave. For

more information, see “Working with color fills” on page 241.

To paint in a channel

1 In the Channels panel, display and select the channel you want to work with.

If you want to paint only on a specific area of the channel, make a selection.

Choose the Brush tool from the toolbox.

3 Click the Brush Selector on the Brush Selector bar.

4 In the Brush library panel, click a brush category, and brush variant.

The Pen and Airbrush brush categories make good choices.

5 In the Color panel, choose one of the following:

• Black — adds to the protected area

• White — removes from the protected area

• Grey — applies a semi-protected area

When you paint in the channel, hue is irrelevant. The channel carries 8 bits of information and you need

only set a level in that range. The value scale is between black and white.

6 Paint in the document window.

In the Channels panel, click the eye icon next to the RGB channel’s thumbnail to display the

channel in grayscale.



You can also



Control the brush opacity Adjust the Opacity slider on the property bar.

Change the brush size Type a value in the Size box, or adjust the slider.

To apply an effect to a channel

1 In the Channels panel, display and select the channel you want to work with.

If you want to apply the effect to a specific area of the channel, make a selection.

2 Choose an effect from the Effects menu.

To feather a channel

1 In the Channels panel, display and select the channel you want to work with.

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Corel Painter 2015 User's Guide Page 601

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