A Fast Refraction Method of an Object Floating on the Water

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  • KATO Kengo
    Graduate School of Engineering, Musashi Institute of Technology
  • MUKAI Nobuhiko
    Graduate School of Engineering, Musashi Institute of Technology
  • KOSUGI Makoto
    Graduate School of Engineering, Musashi Institute of Technology

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  • 水の上で揺れる物体の屈折表現に関する高速化
  • ミズ ノ ウエ デ ユレル ブッタイ ノ クッセツ ヒョウゲン ニ カンスル コウソクカ

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Abstract

There are two major refraction methods of an object that is in the water: ray tracing and refraction mapping. Ray tracing method can represent precise refraction, but needs heavy calculation time. On the other hand, refraction mapping method is faster than ray tracing because it prepares images of the surrounding environment and maps the images on CG models considering refraction of light, however, real-time refraction is difficult for the case of dynamic change. Therefore, we propose a fast refraction method of an object floating on the water by performing refraction calculation, which is based on snell's law, only for vertices constructing the object and by interpolating between these vertices.

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