Perspective Projection
•Homogenize (divide by w’’= z / f) to get:
–x’ = x / (z / f) = x’’/ w’’
–y’ = y / (z / f) = y’’/ w’’
–z’ = z / (z / f) = z’’/ w’’ = f
1
0 0
0
0
1 0
0
0
0 1
0
0
0 1/f 0
x
y
z
1
x’’
y’’
z’’
w’’
=