Real-time Simulation of a Snowfall

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  • GOTO Tomohide
    Graduate School of Engineering, Musashi Institute of Technology
  • KOSUGI Makoto
    Graduate School of Engineering, Musashi Institute of Technology
  • MUKAI Nobuhiko
    Graduate School of Engineering, Musashi Institute of Technology

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Other Title
  • 降雪のリアルタイムシミュレーション(映像表現&コンピュータグラフィックス)
  • 降雪のリアルタイムシミュレーション
  • コウセツ ノ リアルタイム シミュレーション

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Abstract

We propose a real-time generation method of a snowfall by computer graphics. On snowfall phenomena, Shiina et al. observed real motion of each snow particle under no wind and no confliction among snow particles, and they introduced falling speed of snow particle from its diameter. They also classified its falling pattern from a shape of snow particle into vertical, slant and spiral falling. Then, in order to generate three kinds of falling pattern of a snow particle, we analyze observation data on snowfall motion and formulated horizontal direction and distance of a snow particle from its shape and size. Based on these results and using spherical polygon as a model of snow particle, total motion of snowfall is expressed by varying size and shape of snow particle and by combining three types of falling pattern.

Journal

  • ITE Technical Report

    ITE Technical Report 32.34 (0), 13-16, 2008

    The Institute of Image Information and Television Engineers

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