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VRML objects (the objects in your world created from one of the 54 node classes) don't have
variables. Instead, they have:
Fields, which are parameters that are only used when the object is created.
- EventOuts, which allow the object to send an event corresponding to (part of) the
object's internal state. Once the scene is initialized, those events are sent only when
the state changes.
- EventIns, which are methods for changing an object's internal
state, and often its appearance in the scene.
- ExposedFields, which are nothing more
than a combination of a field, an eventIn, and an eventOut.