Two-Handed Through-the-Lens-Techniques for Navigation in Virtual Environments
We present a tool set of techniques for navigation in virtual environments. Based on a through-the-lens concept, the user is enabled to simultaneously view the surrounding virtual world and an arbitrary location of the virtual world as seen through an interactively defined window. For the manipulation and the adjustment of this virtual window we propose three different strategies, loosely based on the well-known eyeball-in-hand, scene-in-hand, and world-in-miniature techniques. Since our technique provides a preview area with controllable size and position, the occluded part of the scene can be flexibly managed, while enabling intuitive and precise work with the proposed tools. The proposed techniques provide powerful tools that are easy to implement and can be applied in any type of virtual environments.
KeywordsVirtual Environment Virtual World Virtual Camera Output Window Navigation Tool
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