Virtual Reality Modeling Language (VRML) is the standard method used for describing and displaying 3D worlds on the Web |
VRML browser provides 3D rendering and ìflight simulatorî user interface, which allows real-time interactive flyover of a 3D terrain model, with overlays of GIS data |
VRML data for terrain is very large - main problem is to minimize amount of data to be downloaded and complexity of scene to be rendered, in order to obtain real-time display |