Scene             Resolution   Time [h]

Ballring          640 x 480    1:35
Button            640 x 480    2:41
Museum            640 x 480    3:01
Merlin3           640 x 480    0:45
Merlin4           800 x 600    4:18
Cessna            800 x 600    4:00
X29               640 x 480    6:14



timings done on a Risc PC with 40 MHz 610
with anti-aliasing (adaptive 1)