National audienceNowadays, 3D on the Web is limited to 3D worlds that require a standalone software independent of the Web content, or uses Web browser's add-ons. New standards, such as HTML 5 or WebGL, are in a specification phase and will soon be available, allowing the integration on the Web of 2D content with 3D content. A major challenge will then be to be able to create 3D worlds for the visualization and browsing of multimedia content, without needing to master professional 3D authoring tools, which do not allow the computation of 3D worlds evolving automatically with the information or data to be visualized. In this article, we present a software environment for the definition of information's display metaphors, taking both the structuring of data (how the user explores and discover data) and the visual aspect of the computed environment (the geometry and data representation) into account