This brings back memories of a computer graphics course. It was (re)implementing part of the OpenGL 1.3 pipeline in C++98 as a 2D triangle-to-trapezoid engine using the painter's algorithm (and then W- or Z-buffering). Coincidentally, it happened to use GLUT+GLU and work on Windows 98, Solaris, and Linux... circa 2001.

https://www.opengl.org/resources/libraries/glut/glut_downloa...