#import <CC3UtilityMeshNodes.h>
CC3SphereNode is a type of CC3MeshNode that is specialized to display a simple sphere mesh.
Since a sphere is a mesh like any other mesh, the functionality required to create and manipulate sphere meshes is present in the CC3MeshNode class, and if you choose, you can create and manage sphere meshes using that class alone.
However, when using bounding volumes, CC3SphereNode returns a spherical bounding volume from the defaultBoundingVolume method, instead of the default bounding volume for a standard mesh node. This provides a better fit of the bounding volume around the mesh.
You can use the following convenience method to aid in constructing a CC3SphereNode instance: