一种大场景环境下实时降雨模拟的新方法

A New Approach for Simulation of Water Falling in Large Scale Scenes

在分析已有的降雨模拟方法的基础上,提出了一种大场景环境下降雨模拟的新方法。该方法是使用一张纹理,以降低性能开销,采用与视点相关技术雾化场景,真实再现了雨的三维视觉效果。基于牛顿动力学控制雨点粒子的运动,以模拟风力作用的效果;同时简化了雨滴的泼溅效果。与传统的雨模拟算法相比,该算法既正确模拟了雨的运动行为,又降低了性能开销。在满足实时漫游的前提下表现出较强的真实感,实验结果表明了改进方法的实用性。

Based on the analysis of traditional simulation methods, this paper presents a new approach for simulation of water-falling in large scale scenes. In this paper we use a texture in order to reduce the computing complexity. Atomize the scenes in the method of view-dependent, generate realistic visual effect of raining. To simulate wind-driven raining effect, the algorithm controls the motion of particles based on Newtonian dynamics, of raindrops computing. Compared with the traditional methods of water-falling simulation, the water-falling behavior and reduce the computing complexity. In the premise of and reduces the splashing it can accurately simulate satisfying real-time walkthrough the 3D scenes of rain, it can exhibit strongly third dimension. The experimental results show that the proposed algo- rithm is practicability.