glfw3: glfw3 (OpenGL framework) glfw3: glfw3: GLFW is a free, Open Source, multi-platform library for opening a glfw3: window, creating an OpenGL context and managing input. It is easy to glfw3: integrate into existing applications and does not lay claim to the glfw3: main loop. glfw3: glfw3: GLFW is written in C and has native support for Windows, Mac OS X and glfw3: many Unix-like systems using the X Window System, such as Linux and glfw3: FreeBSD. glfw3: This is version 3 of GLFW with an incompatible API to GLFW 2.