How to add dirt with the Gradient Node (Blender Tutorial)

In this video I'll show how I added the dirt and moss on the cross model in one of my recent renderings, using the Gradient Node in Blender.

Basic Material Setup: https://rumble.com/v5lh35q-how-to-set-up-a-basic-material-using-the-node-editor-blender-tutorial.html?e9s=src_v1_ucp