JoonsRenderer is a library for Processing by Joon Hyub Lee. It includes the sunflow java raytracer by Christopher Kulla, and the necessary janino compiler by Arno Unkrig. In this gem the JoonsLibrary and sunflower libraries are re-compiled (by Martin Prout) for java-8 and to use janino-3.0.12 The gem is designed to be used with JRubyArt or propane, all you need to do is require 'joonsrenderer' and include_package 'joons' to use the library.