Method and system for three-dimensional virtual reality space sharing and for information transmission

A method of minimizing the volume of communication necessary for displaying moving images is disclosed. When an object is moved on a client terminal, a message indicating the movement of the object is transmitted to a server terminal. The server terminal transmits the message to other client terminals. Each of the client terminals stores a message table in advance to execute the message. According the message table, an image for locally moving a particular object, for example, is generated and displayed. This novel setup transmits information about the update of an updated object composed of a plurality of sub objects each of whose state is subject to change, in a minimum transmission volume. This, in turn, allows cooperative operations of the plurality of sub objects to be smoothly displayed in a three-dimensional virtual reality space shared by a plurality of users.