Real-Time Camera Planning for Navigation in Virtual Environments

  • Tsai-Yen Li
  • Chung-Chiang Cheng
Conference paper

DOI: 10.1007/978-3-540-85412-8_11

Part of the Lecture Notes in Computer Science book series (LNCS, volume 5166)
Cite this paper as:
Li TY., Cheng CC. (2008) Real-Time Camera Planning for Navigation in Virtual Environments. In: Butz A., Fisher B., Krüger A., Olivier P., Christie M. (eds) Smart Graphics. SG 2008. Lecture Notes in Computer Science, vol 5166. Springer, Berlin, Heidelberg

Abstract

In this work, we have developed a real-time camera control module for navigation in virtual environments. With this module, the tracking motion of a third-person camera can be generated automatically to allow a user to focus on the control of an avatar. The core of this module consists of a motion planner that uses the probabilistic roadmap method and a lazy update strategy to generate the motion of the camera, possibly with necessary intercuts. A dynamic roadmap specified relative to the avatar is updated in real time within a time budget to account for occlusions in every frame of the control loop. In addition, the planner also allows a user to specify preferences on how the tracking motion is generated. We will use several examples to demonstrate the effectiveness of this real-time camera planning system.

Keywords

Real-Time Camera Planning Probabilistic Roadmap Intelligent Cam-era Control Budget-based Planning 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Tsai-Yen Li
    • 1
  • Chung-Chiang Cheng
    • 1
  1. 1.Computer Science DepartmentNational Chengchi UniversityWenshanTaiwan, R.O.C.

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