An efficient system to describe irregular ground terrains. Extrusion objects for advanced but compact modelling. A more powerful background colouring and panorama system. A fog system allowing underwater and cloudy environments to be represented. The ability to use MPEG video as a texture map.
Touch sensors allow reactions to a users deliberate actions.
Proximity sensors allow reactions to a users not so deliberate actions Visibility sensors allow conservation of resources. Scripting in JavaScript or Java allows everything from simple logic devices to fully blown analytical engines providing a wealth of complexity. Prototypes extend the existing variety of object types with efficient reuse and simple scene graph structure. A navigation information object provides the browser software with details of the speed and nature of the users movements in the world.