Working with Editing Tools: The Brush Tool (continued)

Since the clouds along the edge of the QuickMask selection are rather spotty (and therefore thin and only partially selected), set the opacity and the flow of the brush to 50%. Choosing 50-percent opacity creates a 50-percent selection, and choosing 50% Flow delivers a discontinuous (spotty) flow of pixels.

3 Configure the Brushes Palette.

First choose WindowOBrushes to activate the Brushes palette, click the Brushes tab and then drag the Brushes palette onto the desktop. Doing so allows the palette to remain active and be placed where you want it.

In the Brush Presets listing on the left, click the Shape Dynamics selection, then set the Size Jitter at 60%, select Fade from the Control drop-down menu, and set the control to 50. Feel free to adjust these values to view the impact. Note that you will have far more flexibility and sensitivity with these types of adjustments if you are using a pressure sensitive digitizing pen and tablet like those made by Wacom technologies.

In the same Brush Presets listing, click Scattering and set the following characteristics: Scatter both axes 300 percent; select Fade from the Control menu (and set Fade at 25); set the Count to 16.

Finally, returning to the same Brush Presets listing, click Texture and set the Scale to 400%.

Note that, with each change in your brush configuration, you see a change in the sample brushstroke at the bottom of the palette.

4 Working on the edge of the clouds, click the Brush tool on various locations until you have covered the cloud area you want.

The idea here is that, instead of painting strokes, you simply point and click. Clicking

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more than once on a location increases the density of the brush mark and therefore the selection.

Note This edited QuickMask should now be saved as a new Alpha Channel to preserve the selection.

The other Photoshop tool palette editing brushes and tools, such as the Airbrush, Blur, Sharpen, Dodge, and Burn brushes, can be configured in a similar fashion. Experiment with the various settings to learn the various brush and tool settings.

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