01/31/2002
15-462 Graphics I
19
Summary of Rotation
•
gluLookAt(e
x
, e
y
, e
z
,
a
x
, a
y
, a
z
,
p
x
, p
y
, p
z
);
•
n = (a – e) / |a – e|
•
v = (p – (p
¢
n) n) / |p – (p
¢
n) n|
•
u = n
£
v
