GLX
GLX provides the glue connecting OpenGL® and the X Window System™ and is required by any OpenGL implementation using X. SGI is releasing its implementation of GLX under a public source license. This action, together with additional programming work being contributed to open source by Precision Insight, Inc., will extend the reach of OpenGL to a new category of platforms: Linux, BSD, and other operating systems using the popular XFree86 implementation of X. The GLX release itself is targeted at developers working with XFree86.