Voronoi diagram and masks in shaders +31 Published on September 2, 2018 We continue to examine our fragment shaders. The Voronoi diagram, pixelation and masks are on the agenda today. See the Pen Fragment Shaders II - Ex. 3 by Ivan Bogachev (@sfi0zy) on CodePen. I recommend to read an introduction to the fragment shaders before reading today’s article.