A GPU-Accelerated Visual Simulator of Whirlwind

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  • 砂塵ビジュアルシミュレータのGPU高速化
  • サジン ビジュアルシミュレータ ノ GPU コウソクカ

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Abstract

In this short paper, we report how we used a GPU to accelerate a visual simulator of whirlwind. In the simulation part, precise simulation can be carried out even with a coarse grid by adding small-scale turbulence on each particle to air flow roughly computed using a grid-based method. We decided to parallelize the grid-based method using CUDA. The rendering part was also accelerated by applying GLSL shader programming to a simplified variant of particle-based volume rendering to delineate changes in the transparency of the whirlwind. The accelerated visual simulator possesses its own user interface, which takes full advantage of the obtained fast performance, to allow the users to interactively control the whirlwind’s trajectory and interactions with other objects.

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