Flat3D: a shared virtual 3D world grown by creative activities and communication through the network

Flat3D is a shared 3D virtual world system that can be grown by user´s creative activities and communication over the network. In conventional shared virtual 3D world systems, users sharing the virtual 3D world communicated with each other only by text-based chatting through avatars, so the communication capabilities were quite limited. In contrast, the Flat3D system allows users to create objects freely in a wade 3D world by simple manipulations. These creative activities become communication trigger and scene elements directly, so the virtual 3D world would be grown by user´s creation and communication. We describe the FlatSD system and its capabilities