Technical Report TUBS-CG-2003-07 New Approaches to Efficient Rendering of Complex Reconstructed Environments Sven Havemann, Dieter W. Fellner, A. M. Day 1 , D. B. Arnold 2 {s.havemann,d.fellner}@tu-bs.de Institute of Computer Graphics University of Technology Mühlenpfordtstr. 23, D-38106 Braunschweig http://graphics.tu-bs.de c  Computer Graphics, TU Braunschweig, 2003 1 University of East Anglia, UK 2 University of Brighton, UK