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Part III: Modeling Basics

FIGURE 13.27
Several polygon faces in the sphere have been extruded along a hinge.

Extrude Along Spline
The Extrude Along Spline button can be used to extrude a selected polygon along the spline path. The set-
tings dialog box, shown in Figure 13.28, includes a Pick Spline button that you can use to select the spline
to use. You can also specify the number of segments, the Taper Amount and Curve, and a Twist value. You
also have an option to Align the extrusion to the face normal or to rotate about the normal.

FIGURE 13.28
The Extrude Polygons Along Spline settings dialog box

Tutorial: Building an octopus
The one thing about an octopus that makes it unique is the fact that it has eight tentacles. Creating these
tentacles can be easily accomplished with the Extrude Along Spline feature.
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