	$final_images\onman\cut_pems.bmp$	$final_images\onman\cut_static.bmp$
(a) ray-traced	(b) PEMs	(c) static EM
Note the missing reflections of the spout and lid knob when using a static environment map (EM). Parameterized environment maps (PEMs) restore these self-reflections by fitting a per-view model and can be rendered in real time.