Photoshop - Brushes - 2

Shape Dynamics This is the adding of dynamic (or changing) elements to preset brush tips. You work with two components when adding dynamic elements to a brush;

  • Jitter percentages specify the randomness of dynamic elements. The higher the percentage of this option, the more difference there will be between each brush tip. For a more dramatic size difference between each brush tip, use the Size Jitter together with Minimum Diameter - the lower the percentage of the latter the more difference there will be.
    • Options.The "Fade" control is for mouse or tablet, and the number entered in the box shows the amount of steps the brush stroke takes before fading - the smaller the number the faster the fading. (the red example to the right was set with a Fade of 100%).

    Jitter is possible the most involved effect in the Brush Engine and it's intricacies could possibly fill an entire Website - just practice and enjoy!


    faded jitter

    Brush scattering determines the number and placement of marks in a stroke. To access the Controls, be sure to click the word Scattering rather than the tick box. In the example to the right "Pen Pressure" was selected and the pressure eased up in the middle of the stroke. When "Both Axis" is selected, brush marks are distributed in a radial pattern. Without this box checked, the marks are laid down perpendicular to the line of stroke. The higher the percentage value entered, the more "scatter" is applied to the stroke.

    Count specifies how the number of brush marks varies for each spacing interval. Count Jitter should be used in conjunction with the Control drop-down box.


    Again, click the name rather than the check-box and the patterns existing in your program become available. As ever, the small arrow to the top-right of this panel allows you to change the default set of patterns with other sets (rather like Brushes!) Variables are: INVERT - inverts the high and low points in the texture based on the tones in the pattern. SCALE - this gives you the opportunity to increase/decrease the percentage of the pattern size. TEXTURE EACH TIP - Specifies whether or not to render each tip individually as it is painted.

    The multi-clored stroke to the right was created by using the same pattern as the black/white one, but having altered the Color Dynamics - so not only have we a vast array of effects, they can be combined to give an almost limitless array!


    texture+clor dynamics

    Dual Brush
    A dual brush uses two tips - one from the Brush Tip Shape section and a secondary one in the dual Brush section of the Brushes palette. again, the variables are enormous, but certain other parameters can be set including DIAMETER, SPACING which controls the distance between the Dual Brush marks in a stroke , SCATTER which works pretty much as previously described and COUNT which specifies the number of dual tip brush marks applied at each spacing interval.
    dual brush
    Color Dynamics
    This determines how the color of paint changes over the course of a stroke.The Foreground/Background Jitter and Control specifies how paint varies between the Fore- and Background Colors. Only one Option is available here and this applies to the aforementioned control, although Hue, saturation, Brightness and Purity can be altered. Entering a lower value in each of these alters the parameters while maintaining a close proximity to the Foreground Color.
    color dynamics
    Other Dynamics
    Here the opacity and Flow can be amended. These fairly self-explanatory commands can vary the Opacity of your paint stroke and also it's level of flow up to (but not exceeding) the flow value specified in the Options bar.
    other dynamics
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