【摘要】 为了模拟真实降雪场景,建立逼真的雪景仿真系统,提出了一种基于OSG(open scene graph)粒子系统的仿真模拟技术,建立以雪粒子受力情况分析为核心的自定义雪粒子模型。该模型分析了雪粒子的具体受力情况,随机确定雪粒子的各初始属性,并在每帧中动态的赋予雪粒子不同的风力值以模拟真实降雪场景中的风力情况,解决了传统模型中雪粒子受力不够真实的情况。实验结果表明,自定义雪粒子模型能够更加真实的模拟降雪场景,具有逼真的仿真效果。更多还原

【Abstract】 To simulate the real snow scene and establish realistic snow simulation system,a simulation technology based on OSG(open scene graph) particle system is presented.A user-defined snow particles model centering on the analysis of snow particles stress is constructed.By analyzing specific snow particles stress,randomly determining the initial attribute of snow particles and dynamically giving snow particles different wind value in each frame to simulate wind conditions of real snow scene,the not real enough condition of snow particles stress in traditional model is solved.Experimental results show that the user-defined snow particles model could really simulate the real snow scene and has vivid simulation effect.更多还原