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1112 Chapter 9: Surface Modeling
want the curve to be closed. Click No to keep
the curve open or Yes to close the curve. (You
canalsocloseacurvewhenyouedititatthe
Curve sub-object level.) When a closed curve
isdisplayedattheCurvesub-objectlevel,the
initial CV is displayed as a green circle, and a
green tick mark indicates the curve’s direction.
5. Adjust the curve’s creation parameters.
6. (Optional) To add a new N URBS curve
sub-object,youcanturnofftheStartNew
Shape check box, and then repeat the preceding
steps.
Inter face
Thecreationparametersarethesameforboth
point curves and CV curves.
Rendering rollout
Enab le I n R enderer —When on, the shape is
rendered as a 3D mesh using the Radial or
Rectangular parameters set for Renderer. In
previous versions of the program, the Renderable
switch performed the same operation.
Enable In Viewport—When on, the shape is
displayedintheviewportasa3Dmeshusingthe
Radial or Rectangular parameters set for Renderer.
In previous versions of the program, the Display
Render Mesh performed the same operation.
Use V iewpor t s ettings—Lets you set different
rendering parameters, and displays the mesh
generated by the View port sett ings. Avai lable only
when Enable in Viewport is turned on.
Generate Mapping Coords—Turn this on to apply
mapping coordinates. Default=off.
The U coordinate wraps once around the thickness
of the spline; the V coordinate is mapped once
along the length of the spline. Tiling is achieved
using the Tiling parameters in the material itself.
Real-World Map Size—Controls the scaling method
used for texture mapped materials that are applied
totheobject. Thescalingvaluesarecontrolled
by the Use Real-World Scale settings found in
the applied material’s Coordinates rollout (page
2–1625).Default=on.
Viewport—Turn this on to specify Radial or
Rectangular parameters for the shape as it will
display in the viewport when Enable in Viewport
is turned on.
Render er —Turn this on to specify Radial or
Rectangular parameters for the shape as it will
displaywhenrenderedorviewedintheviewport
when Enable in Viewport is turned on.
Radial—Displays the 3D mesh as a cylindrical
object.
Thickness—Specifies the diameter of the viewport
or rendered spline mesh. Default=1.0. Range=0.0
to 100,000,000.0.