Quartz Composer with Alexey Epishev. Working with data: iterators and queues | Software
Quartz Composer is a node-based visual programming language, distributed for free as a part of the Xcode development environment in Mac OS X for processing and rendering graphical data.
In this video tutorial on Quartz Composer Alex Epishev will show you how to work with data using iterators and queues. You will learn how to create an "interactive canvas", on which with a mouse you can draw colorful abstract paintings.