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placed straight down from the corner of
the mouth (when looking in the Back
viewport) and centered between the
first point and the last point of the
spline created in Step 28. Create a new
spline. This will act as the bottom of
our quad cage.
Since we now have top, right, and bottom
splines, we need to complete our quad cage
with a left spline.
30. In the Right viewport, create four new
points as shown in Figure 14-40. These
should start at the lower lip and run
down the profile, ending at the center
of the chin. The points should be posi-
tioned at the very center of the head in
the Back viewport. Select all of the
points shown in the figure and create a
new spline.
Spin your model around in the Perspective
viewport and check for anything that looks
out of place.
We've expanded our spline cage, but the
area around the mouth is still open. Let's
close that off. Considering that we already
have a top spline (created in Step 20), it
makes sense that we should create splines
for the bottom, left, and right to complete a
quad cage. However, there's no need to
patch the region inside the mouth, and thus
there's no need for a left spline. You can
create one if you like, but it won't be used.
Hence, we simply need splines for the right
and bottom.
31. Create two new points as shown in Fig-
ure 14-41. Select all three points as
shown and create a new spline. This
will be the right side of our quad cage.
Figure 14-40
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