ZBrush as a Character Design Tool - ZBrush Creature Design: Creating Dynamic Concept Imagery for Film and Games - page 17

and tertiary. Primary forms are the biggest shapes of the character—the skull, nose, and ears for example.
Primary forms are those most basic shapes that make a recognizable head. Secondary forms are things like
folds of flesh and fat rolls ( Figure 1-15 ). These are details that add character to the face. Tertiary forms are
the fine details, such as pores and wrinkles.
Figure 1-15: Primary, secondary, and tertiary forms examined
Proportion
Proportion is the relative size between the parts of a figure. Proportion can help define how we perceive a
figure. Notice how the figure with a larger head naturally appears shorter in silhouette ( Figure 1-16 ). Pro-
portion plays an important role in character design in that the same rules that apply to a human also apply
to creatures. That means that a large head on a body tends to make that creature look shorter or younger,