A prototype defined in an external file and referenced by a URL . 3.31 field A property or attribute of a node . Each node type has a fixed set of fields. Fields may contain various kinds of data and one or many values. The name of a field .
Field names are unique within the scope of the node .
A detailed description of digital data which is typically stored in a computer-based file system. 3.34 frame A single rendering of a world on a display device or a single time-step in a simulation. 3.35 generator A computer program which creates VRML files . A generator may be used by a person or operate automatically. 3.36 geometric property node A node defining the properties of a specific geometry node.