glMatrixMode() and Matrices help!

Where can I have a good and practical explanation of matrices in OpenGL. I cant understand how to imagine a matrix in OpenGL.
Thx!

Hi Anonymous Coward,

for good OpenGL tutorials you should look at
Nehe’s Tutorials, they are the best !
(http://nehe.gamedev.net)

You can also go for another approach, like read a book about OpenGL
The OpenGL SuperBible i.e.
(http://www.itknowledge.com/reference/archive/1571690735/ewtoc.html)

Good luck,

Daniel.

I don’t think Nehe’s tutorials will help u a lot (I don’t like them, but it’s another problem)
Take a look at this link : http://www.flipcode.com/documents/matrfaq.html
It explains basic things about matrix (inverse, transformation, determinant…), and gives informations about how they are used in opengl
There is also a section about quaternions, but skip it for the moment