摘要
随着可编程图形处理单元(GPU)性能的增强,许多基于GPU的三维几何造型系统的应用也与日俱增。Coons曲面片作为三维建模中重要的基本单元,在农作物的建模仿真以及曲面造型中是重要的。为了适应于GPU的通用计算,对传统Coons曲面片方程进行分解,从而并行构造出Coons曲面片。通过实验表明,随着插值点数的增加,片元程序执行的时间依然保持一定程度的稳定,并没有出现明显的增加;GPU上执行时间的增长速度明显低于在CPU上的增长速度。
With the performance of GPU increasing, many three-dimensional geometric modeling systems based on the GPU are used widely. Coons, a component in the three-dimensional modeling, is important in the crop modeling and simulation as well as surface modeling. In order to adapt to the general computing of GPU, a method proposed in this paper decompose the coons patches equations to build coons patches parallelism. The experimental resuh shows that the execute time of GPU keep a certain degree of stability with the number of interpolation points increasing, and the growth rate of execute time of GPU obviously less than the rate of execute time of CPU.
出处
《微计算机信息》
2010年第13期208-209,214,共3页
Control & Automation
