Modeling the Character - Game Character Creation with Blender and Unity - page 67

Figure 3.35
Extruding edges to
create the base for
the forehead
6. Once you have a forehead outline like the one in Figure 3.35, select the bottom edge
of the initial face polygon and extrude this edge downward to trace the face outline.
Continue extruding until you have a mesh matching the one in Figure 3.36.
Figure 3.36
Extruding more
edges creates the
base for modeling
the face.