Classes
 ClassDescription
 CapsuleGeometry A UV Capsule primitive mesh.
 ConeGeometry A UV Cone primitive mesh.
 CubeGeometry A Cube primitive mesh.
 CylinderGeometry A UV Cylinder primitive mesh.
 LineSegment A Line Segment primitive.
 PlaneGeometry A Plane primitive mesh.
 PrimitiveBase PrimitiveBase is an abstract base class for mesh primitives, which are prebuilt simple meshes.
 RegularPolygonGeometry A UV RegularPolygon primitive mesh.
 SkyBox A SkyBox class is used to render a sky in the scene.
 SphereGeometry A UV Sphere primitive mesh.
 TorusGeometry A UV Cylinder primitive mesh.
 WireframeCube A WirefameCube primitive mesh.
 WireframeCylinder Generates a wireframd cylinder primitive.
 WireframePlane A WireframePlane primitive mesh.
 WireframePrimitiveBase 
 WireframeSphere A WireframeSphere primitive mesh