摘要
提出一种硬件加速的算法模拟三维场景中的卡通风格雨,利用图形处理器的并行性和可编程性实现了实时交互·该算法采用碰撞检测、定制纹理及旋转pointsprite的方法模拟雨点的泼溅效果;基于牛顿动力学自由地控制雨点粒子的运动,以模拟风力作用的效果,还可以使用不同纹理或改变pointsprite大小,动态地控制雨点的大小·实验结果表明:该算法可有效地解决复杂地理环境中卡通风格雨的实时模拟问题·
To simulate cartoon style rain in 3D scenes, we propose a hardware-accelerated algorithm. By taking advantage of the parallelism and programmability of GPUs （graphic processing units）, real-tlme interaction is achieved. The algorithm simulates splashing of raindrop using collision detection, stylized textures and rotations of point sprites. To simulate wind-driven raining effect, the algorithm freely controls the motion of particles based on Newtonian dynamics. The algorithm can also control the size of raindrops dynamically by using different textures or changing the size of point sprites. Experimental results show that the algorithm is efficient in solving the problem of reabtime rain simulation in cartoon style for 3D scenes with complex geometries.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2006年第12期1806-1811,共6页
Journal of Computer-Aided Design & Computer Graphics
基金
国家"八六三"高技术研究发展计划(2003AA4Z3120)
国家重点基础研究发展规划项目(2002CB312106)
关键词
雨模拟
卡通绘制
粒子系统
碰撞检测
GPU
rain simulation
cartoon rendering
particle systems
collision detection
GPU
