Modeller uses displaylists which are deprecated.

[stuaxo]

The modeller example is a great start, unfortunately it uses pre Opengl3.3 (displaylists, and Glut which only works with older GL).

It also uses Glut for drawing the Sphere, I've got no idea what this should be replaced with (generating a sphere in the code might push things over 500 lines, probably there is some library that can be used).