Graphics Programs Reference
In-Depth Information
Figure 8.26
surface forms
You can also create surface-based forms from more than one line at a time. The result is a
surface that can be controlled in more complex ways than a single line.
Take the Spline Through Points line, for example. The form on the left in Figure 8.27 creates
a face that is controlled by a single reference line, whereas the form on the right is a face
controlled by two (and it could be more) reference lines.
Figure 8.27
surfaces based
on multiple
splines
Moving the location of the control points on the form on the left maintains a consistent height
to the top of the surface previously generated, whereas moving the control points of the surface
on the right creates a surface that varies in height (Figure 8.28).
Figure 8.28
single and multi-
spline surfaces
