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Proceedings Paper

Time-realistic 3D computer graphics (CG) simulator sight
Author(s): Hiroshi Kamada; Katsuhiko Hirota; Kaori Suzuki; Atsuko Tada; Asako Yumoto; Shigeru Sasaki
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Paper Abstract

We propose a new `time-realistic' computer graphics (CG) simulator using real-time CG in four dimensions including space and time, to solve two fundamental problems of conventional real-time CG systems. First, we implemented a realistic time function to solve the problem of jerky displays. The function is based on a dynamic time control method which can map the CG generation time to the actual real-world time. Each CG frame is displayed by a prediction technique; that is, we can predict the next CG display time by using the current CG display time, since each frame has a coherency. Second, we implemented a realistic view- manipulation function to allow the user to manipulate the view intuitively. The function is based on a dynamic view-control method where the view is controlled according to the identity of CG objects, such as a wall or a floor. The identity can be defined interactively by using new `walk-through attributes'. We developed `Sight', a 3D CG simulator, based on the above two functions, and evaluated time-realistic CG using an experimental CG world. We showed that realistic time has been achieved, since we reduced the time-difference to 1/33 that of conventional real-time CG. The realistic view-manipulation has been also achieved, since any user can easily walk in the CG environment without passing walls and floors.

Paper Details

Date Published: 30 March 1995
PDF: 12 pages
Proc. SPIE 2409, Stereoscopic Displays and Virtual Reality Systems II, (30 March 1995); doi: 10.1117/12.205868
Show Author Affiliations
Hiroshi Kamada, Fujitsu Labs. Ltd. (Japan)
Katsuhiko Hirota, Fujitsu Labs. Ltd. (Japan)
Kaori Suzuki, Fujitsu Labs. Ltd. (Japan)
Atsuko Tada, Fujitsu Labs. Ltd. (Japan)
Asako Yumoto, Fujitsu Labs. Ltd. (Japan)
Shigeru Sasaki, Fujitsu Labs. Ltd. (Japan)

Published in SPIE Proceedings Vol. 2409:
Stereoscopic Displays and Virtual Reality Systems II
Scott S. Fisher; John O. Merritt; Mark T. Bolas, Editor(s)

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