Modeling and rendering of outdoor scenes for distributed virtual environments

We present an approach for modeling and realtime rendering of outdoor scenes, for use in virtual reality applications such as flight simulators and multi-user virtual environments. The models are based on a procedural representation using directed cyclic graphs. It allows to represent extremely complex scenes with little memory and modeling effort. Very large scale virtual environments are supported by a bandwidth-preserving networking approach that makes use of the compact representation and on-the-fly database amplification.

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