1 | Prototype is operational with some simple terrain and GIS data; overlays can be added, such as clouds, snow, buildings, hyperlinked objects |
2 | More tuning can be done, but the current performance is good for VMRL data accessed locally from disk, but too slow over a network (data format is uncompressed ASCII) |
3 | VRML is not flexible enough to add extra capabilities - it is not a programming language |