Painting the Interdimensional Traveler - ZBrush Creature Design: Creating Dynamic Concept Imagery for Film and Games - page 324

The main brushes I use for my sculpting are the Clay Tubes brush, the Standard with a soft fall off alpha,
the Move brush, the Form brush, the Flatten brush (for flattening and also for smoothing), the Inflate brush
and the Damian Standard; lowering the ZIntensity on the Dam Standard to around 10 makes it excellent
for gentle wrinkles or light cracking in chitinous surfaces ( Figure 5-98 ). I almost never use any of the other
brushes for organic character work.
Figure 5-98: The Dam Standard brush with ZIntensity set to 10 works well for freehand sculpting light
wrinkle patterns.