基于粒子系统的实时降雨、降雪模拟  

Real-Time Simulation of Rain and Snow Based on Particle System

作　　者：刘芳[1] 佟巍 

机构地区：[1]东北石油大学计算机与信息技术学院,大庆163318 [2]大庆油田第一采油厂信息中心,大庆163318

出　　处：《计算机系统应用》2015年第6期19-23,共5页Computer Systems & Applications

基　　金：黑龙江省高等教育科学研究"十二五"规划课题(HGJXH B1110131)

摘　　要：基于粒子系统理论实现了虚拟环境中降雪、降雨及其在风场中的模拟.首先阐述了粒子系统的基本模拟原理,对在风场影响下的雨、雪特征进行描述与分析,提出了雨、雪模拟的整体思路,结合降雨、降雪的特点和空气动力学理论对雨、雪进行了模拟.改进四点水波纹线性模拟算法,采用八点水波纹线性算法模拟雨滴落入水面形成的水波纹,应用雾化因子实现降雪环境的模糊问题.Based on the theory of particle system, the simulation of the snow, rain and their real simulation in wind field in the virtual environment was implemented in this paper. The paper fn＇stly illustrated the basic simulation principle of the particle system, and then descripted and analyzed the characteristic of the rain and the snow under the influence of the wind field; put forward the overall train of thought of the rain and the snow simulation. The paper simulated the rain and the snow according to the characteristics of the rain and the snow, the aerodynamics theory of them. By improved the Four-point linear water ripple simulation algorithm, the Eight-point water ripple linear algorithm was adopted to simulate the water ripple formed by the raindrops, atomization factor was applied to solve the fuzzy problem of snow environment.

关 键 词：粒子系统 降雨 降雪 模拟 

分 类 号：P426.63[天文地球—大气科学及气象学] TP391.41[自动化与计算机技术—计算机应用技术]