Before we delve into the recipes, let's have a quick overview of some OpenGL functions that we will be using in this chapter. The following are some of the most frequently used OpenGL functions:
| Function | Description |
| glutInit | Used to initialize GLUT. |
| glutCreateWindow | Used for creating a top-level window. You can supply the window name as a label while creating the window. |
| glutInitWindowSize | Used to define the window size. The width and height of the window are specified in pixels while defining the window size. |
| void glutInitWindowPosition | Used to set the initial window position. The window's x and y locations are specified in terms of pixels. |
| glutDisplayFunc | Used to specify the callback function to be ... |
