From VRML 2 Basic Concepts and Definitions CPS616 -- Information Track of CPS -- Spring Semester 98. byZeynep Ozdemir, Rob Baker, Meryem Ispirli, Geoffrey C. Fox
Shapes
Shape
A node whose fields specify a set of geometry nodes and group these with a set of property (Appearance) nodes to apply to the geometry.
Replaces clumsy "binding" used for material and Texture Nodes in VRML1.0
Geometry
ElevationGrid
Provides a compact method of specifying an irregular "ground" surface.