THe user creates a VRML space by using the VRML language. Like HTML, VRML is interpretted, not compiled. It is extremely user friendly and easy to read. Every VRML file must have this as its first line. The four basic predefined shapes are the cube, the sphere, the cylinder, and the cone.
Fields are the attributes that the various nodes have.
For example, when defining a cube, the user must specify width, height, and depth. These are considered fields of the node cube. Finally comments are used to make code more easily understood in later use. It can be used at the beginning of a line or at any other point in the line. The Y axis is up and down.