40 chapter 2 ■ Sculpting in ZBrush
Brush menu option Description
Modifiers Provides general brush modifier controls, including the BrushMod slider
as well as Smooth, Pressure, Trails, Tilt, and others.
Auto Masking Controls the automatic brush masking options. Masking by Polygroup,
Direction, Cavity, Backface, Color, and Topology are available here.
Tablet Pressure Controls the tablet pressure options.
Alpha And Texture Offers alpha options as well as brush blending modes. The Polypaint
mode slider will allow you to select from the color blending modes
Standard, Colorize, Multiply, Lighten, and Darken.
Smooth Brush Modifiers Provides fine-tuning control of the Smooth brush.
Brushes are further modified by alphas and strokes. Alphas are grayscale images that
are imported into ZBrush or selected from the default alpha set. They serve as the shape
of the brush itself. Alphas can also serve as stencils or texture stamps, which we’ll cover in
Chapter 4, “ZBrush for Detailing.” Figure 2.6 illustrates the effect of various alphas com-
bined with different strokes.
Figure 2.6 The effects of various strokes with different alphas
Alphas are grayscale images that control the shape of the brush. Strokes control how the
alpha is applied to the surface by the selected brush.
The Edit curve controls the strength of a brush over the course of its center to the
outermost falloff ring. The point on the left of the curve represents the brush strength at its
outer radius, whereas the point at the right represents the strength of the effect at the brush’s
center. Manipulating the Edit curve can create many interesting brush effects, as you can
see in Figure 2.7.
Table 2.2: Additional brush menu options (continued)