VRML 2.0 Node Concepts

The VRML scene is composed of nodes and routes
Each node can have the following:
- A unique name for routing or re-use
- A type
- A number of associated events both incoming and outgoing
- A number of fields which hold the data for the node
In addition, group nodes can have many other nodes as children
Certain nodes have an associated stack within the scene graph that allows them to be pushed and popped according to certain rules (bindable nodes)
One special node (script) can hold a program to control behaviour in the scene