Definitions for "Scene graph"
a conceptual data structure expressed by an input VRML file
a data structure that holds nodes to different objects in a scene
a heirarchial description of the objects and operations in the VRML model
Keywords:  graph, geoms, corel, acyclic, nee
a data structure that represents the image components that make up a graphics display
a directed acyclic graph that organizes and stores all of the data nee
The scene graph is the set of items that will be rendered and simulated. In Q the scene graph is divided into Zones. Each Zone has a hierarchy of Groups to give Instances of Geoms transform. P01