Now, it's time to set up our materials. The first thing I'll do is split my screen into three parts—the 3D Viewport,Node Editor, and Materials Tab:
This is just a personal preference, but it does give you access to everything you'll need in order to adjust your materials.
Before going further, let's take a look at some of the basic procedural textures that come with Blender:
As you can see, I've used these textures to affect the displacement or normal of the material. The textures are basically acting as normal maps.
A normal ...