Graphics Programs Reference
In-Depth Information
Figure 11.7
circle object. You can use the “Geometry” values in the properties window - “Object Data”
button to manipulate the object's shape or select vertices and move them (Figure 11.8).
Since this is a curve circle, it can be used as a path in animation.
This procedure shows that by converting one type of object to another, you have different
options for shape manipulation.
Single vertex selected and moved
Figure 11.8
11.2 Creating a Lofted Tunnel
This process will take several profiles of a NURBS circle, which are all manipulated to differ-
ent profiles, and connect them together to form a hollow object (tunnel).
First, create a NURBS circle as described in Section 11.1. The circle is entered in the
scene in object mode, so you need to tab into edit mode. Select the points and shape the
circle a bit. After shaping, go back into object mode and change your view so you are look-
ing down on the circle (number pad 7). Use Shift + the D key to duplicate the circle several
times and position them accordingly, then rotate your view so you can shift select each
circle. In edit mode, edit the shapes. After shaping the circles, exit edit mode and select all
the circles by RMB clicking on them while holding Shift. Join the circles together, pressing
 
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