The virtual scene is defined by use of different objects, properties, groups, and so on. Each of these instances is called a node. A VRML file must contain at least one node. Multiple-value fields can contain numerous items of data. These data lists are generally surrounded by square brackets, with each value separated by a comma.
Some nodes can contain an infinite number of other nodes.
This makes it easy to group related objects. 2.4 Sensor Sensors are nodes that can perform tasks whenever they're triggered. These would make a VRMl secne entirely interactive. There will be several sensors used in this assignment. Whenever you point or click on objects that are patent of this sensor, the sensor is triggered.