Lightweight particle-based real-time fluid simulation for mobile environment

• Published in: Simulation modelling practice and theory Vol. 77; pp. 32 - 48
• Main Authors: Piao, Jin-Chun, Lu, Jue-Min, Hong, Chung-Pyo, Kim, Shin-Dug
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2017
• Subjects: 3D effect; Mobile device; Physics engine; Real-time fluid simulation; SPH algorithm; 3D effect; Physics engine; SPH algorithm; Real-time fluid simulation; Mobile device
• ISSN: 1569-190X; 1878-1462
• DOI: 10.1016/j.simpat.2017.05.003

This paper presents a real-time lightweight fluid simulation based on a particle fluid technique developed for mobile environment . The Bullet physics engine and smoothed particle hydrodynamic (SPH) fluid algorithm will be used for our lightweight fluid simulation. First, we describe an advanced collision detection mechanism that will be used. By using this method, less computational resources are required. Secondly, we present a simplified SPH algorithm where nearby particles are grouped together to minimize the number of calculations. By decreasing the number of particles, an improved computational performance is expected. Finally, the ARM NEON based parallel computing technique was enabled to reduce execution time by lowering the number of arithmetic instructions. Several experiments are carried out where the experimental results indicate the first technique led to a 50% improvement in performance. The second technique provided a 17% overall improvement. The third technique delivered a performance improvement within the range of 26%–40%. Overall, the experimental results show that the proposed techniques provided an accumulative performance improvement of approximately 120% for all applied methodologies.