Clutter

What is Clutter?

Clutter is an open source graphics library for creating hardware-accelerated user interfaces. It relies upon OpenGL (1.4+) or OpenGL ES (1.1 or 2.0) for rendering, can be compiled on different platforms (X11, Darwin and Win32) and has multiple bindings to other languages (includingMono, Perl, Python, Ruby and Vala). It also supports media playback using GStreamer and 2D graphics rendering using Cairo.

Clutter was created by OpenedHand Ltd. Licensed under the LGPL, Clutter is free software (and open source).

 

Clutter "2D Multimedia Toolkit" - "Gtk+, Cairo, Gstreamer Plugins avalable." 
Programming with Clutter 0.8 
[Html] http://www.openismus.com/documents/clutter_tutorial/0.8/docs/tutorial/html/ 
[Pdf] http://www.openismus.com/documents/clutter_tutorial/0.8/docs/tutorial/pdf/programming-with-clutter.pdf 

Programming with Clutter 0.9 
[HTML] http://www.openismus.com/documents/clutter_tutorial/0.9/docs/tutorial/html/index.html 

source: http://www.gtkforums.com/about988.html