Sign & Digital Graphics

August '18

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44 • August 2018 • S I G N & D I G I T A L G R A P H I C S DIGITAL PRINTING AND FINISHING DIGITAL GRAPHICS Figure 12: The custom brush applied to an image with brush tip size, scattering and color dynamics. wish to save the brush as a new preset, click the arrow at the upper-right of the Presets panel. Brush Dynamics The Brush Settings panel (Figure 9) is where the action is as far as modify- ing brush shape and behavior, and this is where experimentation can really pay off. This interface is very extensive, so I don't have room in this article to describe every feature. Suffice it to say it is BIG and goes DEEP. Examples of the various basic brush dynamics are shown in Figure 10 and combinations of dynamics produce an infinite variety of potential effects. As always, experimentation is encouraged. General Features The general brush features in the Brush Settings panel include: Shape Dynamics—controls size, angle, minimum diameter and round- ness. In this panel strokes can be made to fade, taper or respond to stylus pressure. Scattering—regulates the quantity of brush tip marks contained in a stroke, and how they are distributed (or scattered, if you will). Texture—incorporates a chosen pat- tern into the brush tip, resulting in the appearance of painting with a texture. Dual Brush—combines properties of two brush tips. The primary brush tip is the tip selected by using the brush pre- sets, and the secondary (dual) tip is then Figure 11: The Brush Name dialog box appears when an area is selected and new brush is defined. selected in the Dual Tip options. Color Dynamics—adjusts how color varies over the course of the stroke. Other Dynamics—adjusts how color varies over the course of a stroke, in regards to the hue, saturation, bright- ness and purity of the current foreground color. Noise—adds a grainy noise effect to the outer edges of brush tips resulting frayed. It's especially noticeable when used with soft brushes. Wet Edges—permits color to build up along the edges of the brush stroke, resembling a watercolor-style stroke. Build Up—deposits the color gradu- ally by spraying. Smoothing—generates a smoother curved brush stroke. Protect Texture—locks the texture, pattern and scale so that all brushes using this feature are affected. Creating a Custom Brush A custom brush tip can be made from a selected area and used with the to cre- ate starling effects. It's easy, just a few of steps! Here's how: Select an area of an image with any one of the selection tools. Choose Edit > Define Brush Preset. The Brush Name dialog box appears (see Figure 11). Name the brush and click OK. Choose one of the painting or edit- ing tools. Viola! The custom brush is now available as a choice in the Brushes panel. The custom brush can be applied to an image with brush dynamics to produce colored textures, backgrounds or pretty much anything (see Figure 12). Blend Modes No article about brushes would be complete without mentioning the effect that blending has on brush strokes. Here truly lies the unique power of pixel-based painting. Blend modes alter the color pix-

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