实体建模数值反应堆的高质量绘制  

High Quality Rendering of Numerical Nuclear Reactor with Solid Model

作　　者：曹轶[1] 肖丽[1] 王华维[1] 艾志玮[1] 夏芳[1] Cao Yi;Xiao Li;Wang Huawei;Ai Zhiwei;Xia Fang(High Performance Computing Center, Institute of Applied Physics and Computational Mathematics, Beijing 100088)

机构地区：[1]北京应用物理与计算数学研究所高性能计算中心,北京100088

出　　处：《计算机辅助设计与图形学学报》2016年第11期1924-1932,共9页Journal of Computer-Aided Design & Computer Graphics

基　　金：中国工程物理研究院科学技术发展基金(2014A0403019;2015B0403093);国防基础科研计划项目(C1520110002)

摘　　要：针对传统体绘制算法采用全局实体网格化和光线均匀采样策略,难以适应大规模数值反应堆数据的可视分析问题,提出一种面向实体特征的数值反应堆可视化方法.首先利用高重复性的组件特征设计按需网格化的绘制流水线,支撑网格高效重建;然后采用均质属性的实体特征,提出基于表面的非结构网格体绘制加速算法;最后耦合轮廓线等表意性绘制增强效果.实验结果表明,该方法能够可扩展地处理大规模反应堆数据,高质量地表现反应堆结构和关键介质界面.Traditional volume rendering was difficult to adapt to the needs of large-scale numerical reactors visualizationbecause of the global pre-meshing strategy for solid geometries and uniform ray-sampling rendering algorithm.In this paper, an efficient and high quality visualization framework was introduced for the solid-basedreactor datasets. A novel rendering pipeline was presented for on-demand solid-meshing that utilizes the characteristicof high repeatability of reactor models. A surface-based CPU ray-casting rendering algorithm of unstructuredmesh was proposed based on the pipeline for accelerated rendering of the large number of homogeneoussolids within reactor models. The non-photorealistic rendering techniques coupled within the framework werealso implemented for generating more perceptually effective visualization of reactor datasets. Experimental resultsshows that this framework can be used to scalably handle large-scale reactor datasets, and allows clearlyconvey the model structures and materials interfaces.

关 键 词：反应堆模拟 构造实体几何 图形绘制流水线 体绘制 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]