The Fly3D engine described in Watt and Policarpo, '3D Games Real-time Rendering and Software Technology, Volume 1', Addison-Wesley, 2001, ISBN 0201-61921-0, appears to be adequate for beginning applications and perhaps for more ambitious projects.

Question - no one seems to be discussing this work, favorably or otherwise. It depends upon OpenGL. Is this product DOA, too new, just being ignored?