Okay, so this wasn’t really an engine.  It was, in actuality, a bunch of classes I made while trying to make a 3D simulator for my senior project (which was to build a small car that could navigate itself through an outdoor obstacle course using a camera and some sensors).  It was my first attempt at 3D graphics, and somehow I actually managed to make something that sorta worked.  Reaaaaaal ugly though…although things got a little better as I messed around with post-processing and shadows.  I used D3D9 with C++.