OpenGL (short for Open Graphics Library) is a cross-platform application program interface (API) used for rendering two- and three-dimensional graphics; it works independently of operating systems. It provides several built-in routines for displaying graphics and for applying special effects, anti-aliasing, and different transformations.
OpenGL had a library called the OpenGL Utility Toolkit (GLUT), but it has not been supported for several years. FreeGLUT, a free, open source piece of software, is used as an alternative in its place. GLUT was very popularly used in graphics applications as it is highly portable and is very simple to use. It has a large library of functions for creating windows, different graphical shapes, event handling, and more. If FreeGLUT is not installed on your computer and you have Windows OS on your computer, you...
