Hi all,
Reading Gems 7 at the moment, and there is a few examples and references to "Delta3D engine."
Haven’t heard of these guys before, but apparently they are established, and an OpenGL, OpenSceneGraph, ODE, OpenAL variant on Ogre3D.
http://www.delta3d.org/article.php?story=20041105154425816&topic=about
Might be of use to any of the CompSci students on here. (Although I still rate Ogre3D, as its support forums, tools, exporters, and community are pretty pro-active. Just FYI).
Brendan.