Opengl has a great built-in matrix system
Yeah "great" is a bit over the top lol, should read "Opengl has a built-in matrix system" :)
Don't get me wrong, I'm sure Antony knows what he's doing, I'm not saying that using the gl matrix is any better than Antonys class, I was being more inquisitive as to why a matrix class would be needed, what are the advantages?
I'm only just learning this stuff myself, and it seems a bit strange to use a matrix class when your already using gl matrix anyway.