Processing is a flexible software sketchbook and a language for learning how to code within the context of the visual arts. Developed by Casey Reas, Ben Fry, and many others: http://www.processing.org/about/people.html
License: Open Source
Processing is a flexible software sketchbook and a language for learning how to code within the context of the visual arts, while Quartz Composer is a visual programming tool for processing and rendering graphical data in real-time on macOS. Processing is more versatile for various programming tasks, while Quartz Composer excels in multimedia and interactive applications.