Description:

Glitz is a portable 2D graphics library that uses OpenGL to render
hardware accelerated graphics. It supports many of the latest OpenGL
features, such as efficient off-screen rendering using pbuffers.
Rendering can be carried out by arbitrary OpenGL layers, thanks to
glitz's extensible backend system. Glitz is designed to match the X
Render Extension semantics and provides a general way for accelerating
this imaging model. Glitz can be used as a stand-alone layer above
OpenGL but is also designed to act as a backend for cairo, providing
it with OpenGL accelerated output.