Abstract
Web3D is the general term for techniques of three dimensional computer graphics on Internet(Web). The idea of VRML of which mechanism was formed at the beginning of 90's, was completely hanged. It is characteristic that the shift to the offer of rich media contents with pursued realistic image by utilizing the broad-band network. This Web3D techniques was developed mainly aiming at the electronic commerce etc. It is further used as a visualization tool for the simulation system solved on a large-scale computer. An example of the Optimum Towing Support System using Web3D is referred.
