| [GLib](http://www.gtk.org/) | GLib is one of the base libraries of the GTK+ project |
| [libGLU](ftp://ftp.freedesktop.org/pub/mesa/glu/) | The OpenGL Utility Library (GLU) is a computer graphics library for OpenGL. |
| [Mesa](http://www.mesa3d.org/) | Mesa is an open-source implementation of the OpenGL specification - a system for rendering interactive 3D graphics. |
| [ParaView](http://www.paraview.org) | ParaView is a scientific parallel visualizer. |
| [pixman](http://www.pixman.org/) | Pixman is a low-level software library for pixel manipulation, providing features such as image compositing and trapezoid rasterization. Important users of pixman are the cairo graphics library and the X server. |
| [X11](https://www.x.org) | The X Window System (X11) is a windowing system for bitmap displays |