Two intrinsic dimensions are used together to map a link's attribute. The bookmarks file, other than the name and the URL of a link, stores information about its date of creation and last access. As the background is black, big bright objects are more visible. If textures are used, a special one marks VRML links. Navigation hints A path connects all globes, guiding the unconstrained navigation allowed by most VRML browsers.
Landmarks are present in form of stars.
The 3D generator is accessible through the web and anybody can use it to generate a personal VRML scene. If the users configuration is correctly set, a VRML browser is automatically run with the generated 3d scene. We have shown a practical use of VRML to represent a portion of the web in 3D. This system is of course experimental and doesn't pretend to be a panacea for web navigation, in some cases using a pull-down menu is still faster. Even so, some issues of abstract data space visualization have been addressed and a few propositions that improve navigation and legibility have been made . The interaction in such scenes is limited to navigation and link selection, there is no way to manipulate objects and modify the scene.