オンラインリメッシュ型変形計算のGPUによる高速化と大規模仮想柔軟物体との力覚インタラクション(<特集>ハプティクスとVR)

概要

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This paper proposes a computationally-efficient calculation method for simulating mass-spring model (MSM), by using both online-remesh deformation model and parallel computation by GPU. To compute the simulation and online remesh of MSM efficiently on GPU, we propose an extended data structure that consists of a connection array, a node list and a mass list. The simulation of MSM is efficiently performed on GPU, by using fast coalesced memory access. The online remesh process is efficiently performed on GPU, by using the feature of relocatability of the connection array. Computation time of MSM by using proposed approach (GPU and online-remesh) was 30 times faster than by using CPU. Interaction force computed by using GPU was more stable than by using CPU.
2011-09-30