A visual programming language for processing and rendering data. Using OpenGL, Core Image, Core Video, and other technologies to build an API and serves as a simple visual programming paradigm. Quartz Composer is a core technology of the Mac OS X. Quartz Composer creations work in any QuickTime-aware application (beginning with Mac OS X v10.4), from the Quartz Composer application, or embedded into Cocoa or Carbon applications.
Quartz Composer has many similarities to Max/MSP although its primary usage is for graphical rather than audio processing. Offers the ability to construct interactive video compositions that react to audio or MIDI signals and can be played from any QuickTime aware application.