Irrlicht Engine

hi,

i want learn opengl to better understand a 3d engine.
my first problem is the create a scene manager ..

i want add my objects to a scene manager und he sort and display this correctly.

have anybody a tutorial or link for a simple scene manager in opengl?

thx

...

Weeeeeeeeeeeell, you could download the Irrlicht source code itself and see how its scene manager is constructed. But if you're looking to make your own scene manager in OpenGL you may get better responses in the forums at http://www.gamedev.net/