8

Surf ace Modifier 835
Face: Spline net work based on fro nt and profi le reference
images
Two intersecting texture-mapped polygons are
used as a reference to create a network of splines
manually. Drawing lines on the physical sculpture
is used as an added visual aid to position the
splinesinthiscase. TheCrossSectionmodifier
is not necessary if you create the spline network
manually.
Rhino head: Spline network begins with the profile.
In the top image, the head of a rhinoceros is
modeled by creating a network of splines. The
firstsplinecreatedistheprofileoftherhino;
other splines are added and edited to complete
the model. In this case, a reference copy of the
spline model was created and a Surface modifier
was added to the copy.
Asthesplinenetworkisedited,thepatchsurface
of the reference copy is updated dynamically.
This allows you to view a shaded patch model as
you manipulate the spline network, any surface
anomalies can b e spotted and corrected.