I made my first serious attempt almost as soon as I joined my university, CompSci. First attempt took a long time, as I did not really know how matrices applied

I made my first serious attempt almost as soon as I joined my university, CompSci. First attempt took a long time, as I did not really know how matrices applied to computer graphics, so I did all operations again and again, when they were required. My first rotating cube "exploded" due to numerical errors, as I was modifying the geometry instead of using matrix projections. That made me appreciate the linear algebra classes much more.