Facial Animation Setup - Game Character Development with Maya - page 817

5. Using the solid brush, fully weight the bottom of the jaw (including her bottom
teeth and tongue) to the Jaw joint.
6. Reset the Paint Weights Value to 0.5 , and paint over the middle of the mouth at
the corners and cheeks (this is the area halfway between the upper and lower lips),
as seen in Figure 13.9 , left.
FIGURE 13.9 Adjust the weights for the jaw and head joints, fixing the mouth.
7. Select the head joint, and set Paint Weights Value back to 1 . Fully weight the top
of her head (including her upper teeth and lip) to this joint ( Figure 13.9 , middle).
As you can see in Figure 13.9 , right, the mouth now looks better when it is open.
But the problem now is that it's too round when open, so we need to bring the
sides of the mouth in.
We will now adjust the weighting for the lip joints we created. This will help to adjust the
shape of her mouth when it is open.
1. Reset the joints back to their default positions by moving the Time Slider to a dif-
ferent frame, and then back to frame 0.
2. Move outward all six joints that will operate the lips ( Figure 13.10 , right). When
they're weighted, these joints will open the lips but keep the teeth together.