Rendering the Enforcer - ZBrush Creature Design: Creating Dynamic Concept Imagery for Film and Games - page 657

Figure 10-12: The results of the diffuse shader rendered with BPR
11. Use the Save As button in the Material palette to save the material as DiffuseShader.ZMT. It's very
easy to accidentally overwrite a shader in ZBrush so I find it's a wise practice to save the materials
whenever I work on them.
12. Save your project!
Create the Specular Shader