Cpw - Application framework library for OpenGL applications and games. GLTT - Read and draw TrueType fonts in any OpenGL application. GL2PS - C library for creating high quality vector output (primarily PostScript) from an OpenGL application. UFO - High level platform-independent GUI for 3D programming with OpenGL. GLT - Portable C++ OpenGL Toolkit including GLUT wrapper and utility classes. GLE - Tubing and Extrusion API for drawing tubing, extrusions and sweeps using OpenGL. GLOW - Cross-platform GUI toolkit for interactive OpenGL programs. GLEW - The OpenGL Extension Wrangler Library is a tool that helps C/C++ developers initialize extensions and write portable applications on Windows, Linux, Darwin, Irix, and Solaris platforms. glGUI - Cross-platform API independent GUI libGLobs - C++ library for RAD (Rapid Application Development) UNIX/Linux OpenGL games and applications. LibSpider - A library of C++ classes which can be used in making 3D games and applications with OpenGL and GLUT. [Open Source, GPL] GLIntercept - Description and downloads for a library that saves and loads OpenGL operations in an XML file. GLFW - Free, open source, portable framework for OpenGL application development GtkGLExt - An OpenGL extension to the GTK GUI library. This site provides feature descriptions, screenshots, documentation, source, and development resources.