Freeglut

Freeglut, the Free OpenGL Utility Toolkit, is meant to be a free alternative to Mark Kilgard's GLUT library. Freeglut is free software, distributed under an MIT/X11 style license. You are free to use, modify, and redistribute freeglut with or without modifications (see COPYING for details). In short, freeglut can be used by OpenGL programs to perform those tasks which would normally require platform-specific code. Tasks like creating a window, creating an OpenGL context and binding it to the window, and processing input events. Freeglut provides a concise and elegant API to handle those tasks, in a platform-independent manner, keeping the application simple and portable. One of the main goals of freeglut, is maximum compatibility. Freeglut is both source and binary-compatible with the original GLUT, and can be used as a drop-in replacement for it. We take great care to maintain a stable API and ABI, and to introduce any new features and improvements in a way which does not compromise compatibility. Consult the platform-specific readme files for details on the level of support and build instructions. Freeglut relies on cmake (minimum 3.1.0) to generate build files for all the different supported platforms and toolchains. See README.cmake as a starting point, as well as the other README files for further info. For those cases where using cmake is inconvenient, we also provide a set of unofficial, unsupported, possibly unmaintained, but potentially useful, alternative build files. See altbuild/README.md for details. Patches and pull requests for bugfixes and new features are certainly welcome. Please send patches to the freeglut-developer mailing list (see CONTACT below). Feel free to report any bugs you encounter, using the github issues system. Alternatively you can also send bug reports and feature requests to the freeglut-developer mailing list if you prefer. Extended discussions about new features and design issues for large contributions, are best suited to the mailing list.