Game Development Reference
In-Depth Information
tocreateCDENSZandAKI.Efficiencyisalsocalledforinthecreationofsomebasefacial
poses, including Shock, Angry, or Happy. These can all be done via the other basic shapes.
Note
It's important that the geometry is fully tested and complete before you
create the blend shapes. If the topology is altered in any way afterward,
they will have to be redone. Each vertex is assigned a number in Maya,
and blend shapes work with these numbers. Altering the topology means
altering the vertex numbers, so the face shapes will no longer work. You
can still flip and edit edges, as that doesn't affect vertex numbers.
Tip
Do not freeze the transforms on any of the face shapes. The vertices work
on a relative basis, so all transforms should remain intact. If not, when you
blend the main face to one of the others, the whole face will move to its
target.
Let's create the Ahh shape.
1.
Duplicate the face and move it over to the left of the main model. Name this copy
Ahh.
2.
Hide the main model. Then, following
Figure 13.33
,
left, select all the vertices
that make up the bottom jaw, teeth, and tongue, but
not
the vertices that lie on the
edges of the model.
