Pixologic has unveiled ZBrush 4.0, a new version of its 2D and 3D digital sculpting application for artists and designers. The sculpting and painting program provides users with a wide range of sketching tools, and produces renders with lighting and atmospheric effects. New features include the ability to save important elements of a design as a project, a built-in ShadowBox tool for creating 3D primitives, and new Clip Brushes used for refining hard surface edges. Also included are several new brushes that use dedicated settings, and allow users to create global def