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176 Chapter 5: Creating Geometry
Effect of using Base To Pivot setting
Genera te M apping Coords—Generates coordinates
for applying mapped materials to the sphere.
Default=on.
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 Coor dinates rollout (page
2–1625). Default=off.
GeoSphere Primitive
Create panel > Geometry button > Standard Primitives >
Object Type rollout > G eoSphere button
Create menu > S tanda rd Primitives > GeoSphere
Use GeoSphere to make spheres and hemispheres
based on three classes of regular polyhedrons.
Examples of geospheres
Geospheres produce a more regular surface than
standard spheres. They also render with a slig htly
smoother profile than a standard sphere given
thesamenumberoffaces. Unlikeastandard
sphere, a geosphere has no poles, which can be an
advan tage when you apply certain modifiers such
as Free-Form Deformation (FFD) modifiers (page
1–685).
Procedures
To create a geospher e:
1.
OntheCreatemenuchooseStandard
Primitives > Geosphere.
2. In any viewport, drag to set the center and
radius of the geosphere.
3. Set parameters such as Geo desic Base Type and
Segments.
To cr eate a geo-hemisphere:
1.
Create a geosphere.
2. In the Parameters rollout, turn on the
Hemisphere check box. The geosphere is
converted to a hemisphere.