It is a stumbling Block for quite a few Woodworkers and Woodcarvers. In a low relief Wood carving sometimes you have to make a Bubbly looking background. And if you will plug a word in Google or any other search engine: ” Bubbly Background” you will get some results but not what you need for your woodcarving or woodworking project. I created a lesson dedicated to Bobbly Background in my School of Woodcarving. It is a part of a Course: “Carving antique style Rosette“. It is just aa one of many lessons/ woodcarving workshops.