Joel Adams Share How to Make a Procedural Dirt Shader in Blender Using Cycles.
There are a few benefits of working with procedural textures. One is that procedural workflows can be incredibly flexible. The other is the ability to use the surface at any resolution, as they regenerate on the fly. Watch Joel Adams walk through creating a Procedural Dirt Shader with Blender working with Cycles.
The first part of a two-part tutorial looks at creating procedural nature in Blender and shows how to create a scene with terrain, and grass. The first part dives into creating the procedural dirt shader. I would argue that UV unwrapping is always essential, even when working with procedural materials, but with this instance, Adams foregoes the UV unwrapping and mapping, working with meshes that are too dense to UV unwrap without some other plan in place.