关键词: 水波, 仿真, 波环, 波包, 粒子系统

Abstract: A real-time two-dimensional water wave simulation method based on wave annulus particle packet was proposed to solve the problems of high computational cost and unreality of diffusion after wave collision. This method significantly reduces the number of particles in the traditional particle-based water wave simulation and thus dramatically improves the rendering frame rate of the simulation algorithm. In simulating water waves, the method adopts wave annulus particles as the basic computing unit, inherits the concept of "wave packet" inside the particles, and reproduces the visual effect of water waves by superimposing multiple frequency bands. When calculating the reflection process of water waves, adding a mirror wave source can reduce the collision calculation and avoid complicated geometric decisions. The new algorithm provides additional computational precision parameters and can adjust the computational complexity of water wave reflection according to different hardware computing capabilities, with better hardware adaptive ability. Experimental results show that this method can simulate the actual water wave motion with fewer particles, avoid the problem of water wave fracture after collision and reflection, and improve the efficiency of water wave simulation.

Key words: water wave, simulation, wave annulus, wave packet, particle system