Time-realistic 3D computer graphics (CG) simulator sight

Hiroshi Kamada; Katsuhiko Hirota; Kaori Suzuki; Atsuko Tada; Asako Yumoto; Shigeru Sasaki

doi:10.1117/12.205868

30 March 1995 Time-realistic 3D computer graphics (CG) simulator sight

Hiroshi Kamada, Katsuhiko Hirota, Kaori Suzuki, Atsuko Tada, Asako Yumoto, Shigeru Sasaki

Proceedings Volume 2409, Stereoscopic Displays and Virtual Reality Systems II; (1995) https://doi.org/10.1117/12.205868
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

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.

Citation Download Citation

Hiroshi Kamada, Katsuhiko Hirota, Kaori Suzuki, Atsuko Tada, Asako Yumoto, and Shigeru Sasaki "Time-realistic 3D computer graphics (CG) simulator sight", Proc. SPIE 2409, Stereoscopic Displays and Virtual Reality Systems II, (30 March 1995); https://doi.org/10.1117/12.205868

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KEYWORDS

Computer simulations

Computer graphics

Algorithm development

Virtual reality

Computing systems

Multimedia

Parallel processing

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