Prepare your mesh
First things first: you’ll need a model and preferably one with enough subdivisions to give a smooth surface. If yours still looks low resolution then head to the Geometry tab and divide until you’re happy. I find that a level of 5 works best for me, enabling me to clearly see what’s happening.
Make some noise
Now unfold the Surface section and click the Noise button to open up the interface. We’ll deal with this in a minute, but for a quick start and shortcuts you can click the Lightbox button and choose a preset from the Noise section to get an idea of what we’re working with.