To stream or not to stream?

Non-Streaming technologies such as Virtual Reality Modelling Language (VRML) are the traditional means of transmitting 3D data over the Internet.

These technologies download the entire 3D file before displaying it. The problem is that even assuming the server is not bogged down, a small 5MB VRML file could take upwards of twenty minutes to download over a 28.8K modem. Busy businesses cannot and should not tolerate these long download times for collaborative design.

Streaming technologies, such as RealityWave’s VizStream, are a practical alternative to non-streaming technologies.

Like other streaming media, streaming 3D technologies incrementally deliver the 3D data. Users can immediately interact with the 3D model or environment without waiting for it to download.

As the user continues to interact, more detailed `streams’ are added to the user’s computer. Streaming 3D drastically reduces the bandwidth required to effectively use 3D content and works even over a 28.8 kbps modem.