Fig.
7-12 Step 7. Beveling
back and down and mirroring
the tongue.
Fig.
7-13 Step 8. Putting
all the mouth parts
together.
Step
7 (Figure 7-12). Bevel the back of
the half tongue again. Shape the tongue
so that it curves back and down. Delete
the middle polygons along the 0 x
axis seam. Use a set value to move
the middle seam points to the 0 x
axis. Mirror the half tongue and merge
the duplicate points along the center
seam.
Step
8 (Figure 7-13). Place the teeth,
gums, and tongue together. Put them
in a layer with the figure in a background
layer. Scale the parts to fit the
inside of the mouth. You may have
to switch layers and adjust the figure’s
mouth cavity. Cut and paste the mouth
components into the same layer as
the figure. Later, when you make morph
targets (chapter 11), the teeth and
tongue will be moved according to
the various mouth poses.
Modeling the Eye Parts
The eye parts
are fairly simple objects made from
spheres. They resemble the components
of human eye which can be viewed in
most medical textbooks.
Modeling
the Eyeball Steps
Fig.
7-14 Eye Step 1. The
eyeball and iris are
one connected object.
Step
1 (Figure 7-14). Create
a sphere on the axis that
has 10 sides and 5 segments.
This is a low polygon
ball that will become
smooth with subdivision
surfaces. Slice across
the front polygons to
create the section that
will form the iris. Slice
at the end of the iris
and delete those polygons
so that you have a small
hole in the center of
the iris. The lens or
pupil will be placed behind
this hole. Push the points
around the hole back a
little. Select the iris
polygons and name them
“iris”. Inverse
the selection and name
the polygon surfaces “eyeball”.
Fig.
7-15 Step 2. The lens
or pupil is a saucer-like
disk that sits behind
the iris.
Fig.
7-16 Step 3. The cornea
covers the front of
the eyeball and iris.
It can be formed from
a half sphere.
Fig.
7-17 Step 4. The caruncula
lacrymalis or pink membrane
in the corner of the
eye. It is modeled from
a primitive.
Fig.
7-18 Step 5. All the
eye components are put
together.
Step
2 (Figure 7-15). Create another simple
sphere and flatten it so it looks
like a flying saucer. Scale it down
to fit behind the lens opening of
the iris. Name its surfaces “lens”
or “pupil”. It’s
color should be black.
Step
3 (Figure 7-16). Create a half sphere
that is slightly larger than the eyeball
and protrudes in front of the iris.
This is the transparent cornea that
has a very high gloss.
Step
4 (Figure 7-17). Create the small
pink membrane for the inner angle
of the eye. It can be made by reshaping
a sphere or a divided cube.
Step
5 (Figure 7-18). Place all the eye
components together and scale them
to the eyesocket. Surfaces for the
eye and mouth parts will be assigned
at a later part of the chapter. After
that, the eye parts will be rotated
in the top view so they tilt a little
to the side. It is easier to apply
textures when the eye is facing forward
rather than angled.
