I describe a real time driving simulation system, which leads to evaluate or to improve the design of cities and roads. This system produces the virtual space (consisting of a virtual city and roads) on a three dimensional computer graphics platform, using a vehicle model operated through a cockpit with a steering wheel, an accelerator and a brake pedal. I propose the concept, original technologies and user interface of this system. Recently, three dimensional computer graphics have become practical for landscape design. However, since real time simulation requires long calculation time to produce a real image, the still image or the animation data already calculated or edited is generally used. Through this study, I realized a one hundred thousand polygon virtual space with the pixel density of 1280*1024 and the drawing rate of thirty frames/second by using ONYX/Infinite Reality from Silicon Graphics, with techniques such as LOD to accelerate the drawing speed, and by improving the data structure. As a practical example, the real time simulation of a highway interjunction with two lanes each way, thirteen lamps of twelve kilometer length in total, twenty-six meters of the maximum difference of altitude, thirty-five road signs and one hundred thousand polygons is realized.


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    Title :

    Virtual reality system for traffic environment simulation


    Additional title:

    Titel japanisch


    Contributors:
    Mukai, T. (author)


    Publication date :

    1998


    Size :

    11 Seiten, 13 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Japanese




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