GPU 가속화된 옷감-액체 상호작용을 이용한 기공 흐름, 흡수, 방출 및 확산의 효율적 표현
Efficient Representation of Pore Flow, Absorption, Emission and Diffusion using GPU-Accelerated Cloth-Liquid Interaction
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초록
본 논문에서는 옷감과 입자 기반 유체 해법인 SPH(Smoothed particle hydrodynamics)를 이용한액체 간의 상호작용으로 표현되는 다공성 흐름(Pore flow), 흡수, 방출 그리고 확산 효과를 GPU 기반으로 빠르게 표현할 수 있는 방법을 제안한다: 1) 옷감-액체의 상호작용에 의해 표현되는 다양한 물리적 효과를 GPU 기반으로 표현할 수 있는 통합형 프레임워크, 2) SPH 기반으로 노드의포화도를 효율적으로 계산하고 이를 주변 Porous 입자들로 전달하는 방법, 3) 유체 흡수 및 방출방향을 안정적으로 계산하기 위해 다르시 법칙(Darcy’s law)을 기반으로 안정성을 개선시키는 방법, 4) Porous 입자들로 흡수되는 과정에서 유체의 흐름 방향에 따라 흡수되는 양을 조절하는 방법, 마지막으로 5) SPH 입자의 최대 질량이 넘지 않도록 방출할 수 있는 방법을 제시한다. 제안하는 방식의 가장 큰 장점은 모든 연산이 GPU에서 계산되고 동작하기 때문에 빠르게 옷감과 유체의 상호작용으로 표현되는 다공성 재질, 다공성 흐름, 흡수, 반사, 확산 등을 모델링할 수 있다.
Abstract
In this paper, we propose a fast GPU-based method for representing pore flow, absorption, emission, and diffusion effects represented by cloth-liquid interactions using smoothed particle hydrodynamics (SPH), a particle-based fluid solver: 1) a unified framework for GPU-based representation of various physical effects represented by cloth-liquid interactions; 2) a method for efficiently calculating the saturation of a node based on SPH and transferring it to the surrounding porous particles; 3) a method for improving the stability based on Darcy's law to reliably calculate the direction of fluid absorption and release; 4) a method for controlling the amount of fluid absorbed by the porous particles according to the direction of flow; and finally, 5) a method for releasing the SPH particles without exceeding their maximum mass. The main advantage of the proposed method is that all computations are computed and run on the GPU, allowing us to quickly model porous materials, porous flows, absorption, reflection, diffusion, etc. represented by the interaction of cloth and fluid.
참고문헌 (22)
- Huber, Markus, "Wet cloth simulation", ACM SIGGRAPH 2011 Posters, pp.1~1 (2011)
- Fei, Yun, "A multi-scale model for simulating liquid-fabric interactions", ACM Transactions on Graphics (TOG), 37(4), pp.1~16 (2018)[DOI]
- Lindsay, "Mixture models: theory, geometry, and applications" (1995), Ims
- Bender, Jan, "Divergence-free smoothed particle hydrodynamics", Proceedings of the 14th ACM SIGGRAPH, 2015, 147~155
- Bouaziz, "Projective dynamics: Fusing constraint projections for fast simulation", Seminal Graphics Papers:Pushing the Boundaries, 2, pp.787~797 (2023)
- Curtis, C. J., "Computer-generated watercolor", Proceedings of the 24th annual conference on Computer graphics and interactive techniques, pp.421~430 (1997)
- Chu, N.S.H., "Moxi: real-time ink dispersion in absorbent paper", ACM Transactions on Graphics (TOG), 24(3), pp.504~511 (2005)[DOI]
- Ozgen, O., "Underwater cloth simulation with fractional derivatives", ACM Transactions on Graphics (TOG), 29(3), pp.1~9 (2010)[DOI]
- Chen, Y., "Physical simulation of wet clothing for virtual humans", The Visual Computer, 28, pp.765~774 (2012)[DOI]
- Um, K., "Porous deformable shell simulation with surface water flow and saturation", Computer Animation and Virtual Worlds, 24(3-4), pp.247~254 (2013)[DOI]
- Lenaerts, T., "Porous flow in particle-based fluid simulations", ACM Transactions on Graphics (TOG), 27(3), pp.1~8 (2008)[DOI]
- Rungjiratananon, W., "Real‐time animation of sand‐water interaction", Computer Graphics Forum, 27(7), pp.1887~1893 (2008)[DOI]
- Patkar, S., "Wetting of porous solids", IEEE transactions on visualization and computer graphics, 19(9), pp.1592~1604 (2013)
- Lin, Wei-Chin, "Coupling Hair with Smoothed Particle Hydrodynamics Fluids", Workshop on Virtual Reality Interactions and Physical Simulations (2014)
- Lin, W.C., "Boundary handling and porous flow for fluid–hair interactions", Computers & Graphics, 52, pp.33~42 (2015)[DOI]
- Abe, K., "Material point method for coupled hydromechanical problems", Journal of Geotechnical and Geoenvironmental Engineering, 140(3), pp.04013033~ (2014)[DOI]
- Bandara, S., "Coupling of soil deformation and pore fluid flow using material point method", Computers and geotechnics, 63, pp.199~214 (2015)[DOI]
- Daviet, G., "Simulation of Drucker–Prager granular flows inside Newtonian fluids", Physics, Engineering, Environmental Science (2017)
- Akinci, N., "Versatile rigid-fluid coupling for incompressible SPH", ACM Transactions on Graphics (TOG), 31(4), pp.1~8 (2012)[DOI]
- Solenthaler, B., "Two-scale particle simulation", ACM SIGGRAPH, pp.1~8 (2011)
- Adams, B., "Adaptively sampled particle fluids", ACM SIGGRAPH, pp.48~ (2007)
- Fang, Yu, "IQ-MPM: an interface quadrature material point method for non-sticky strongly two-way coupled nonlinear solids and fluids", ACM Transactions on Graphics, 39(4), pp.51~ (2020)[DOI]