YY_Voronoi is a procedural texture generator. Voronoi diagrams (also known as Worley noise, or cell noise) are procedurally generated images which can be used as all sorts of textures, from terrain maps to water caustics to abstract backgrounds. By layering different Voronoi patterns, variations in complexity can be achieved. YY_Voronoi provides a way to generate Voronoi diagrams in After Effects, with extra options to control animation, shape, and much more.