A constrained road-based VR navigation technique for travelling in 3D city models

In this paper we propose a novel navigation metaphor for the exploration of 3D city models in virtual environments. The presented metaphor supports intuitive navigation without disorientation through 3D city models in a manner similar to travelling in the real world. Based on a graph representation of the road network of a 3D city model camera paths are calculated and used to enable smooth camera motion. We will explain how smooth camera motions are computed and describe a user interface usable in both desktop-based as well as projection-based environments to specify travel destinations.

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