As a first step a in-depth research on exsiting projects which are working on support for 3D on mobile devices is conducted. In a second step a new infrastructure is introduced to enable users with mobile devices to view 3D Virtual Reality data. An important feature is that the 3D Virtual Reality is optimised for the specific mobile device. This ability is assured by exchanging information between client and an newly indroduced VRML proxy. Therefore, existing 3D Virtual Reality files can be reused without reducing content and optimising these files. Content providers do not have to care about the different mobile devices and to provide an optimised version of their file for every device. This fact is of particular importance if the 3D files are generated automatically. With the help of the incremental data transmission of the VRML proxy, low bandwidth systems can also be used. This avoids the need of download the entire file to the device, which is a time consuming and costly method of transmission in an environment with low bandwidth.

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