一种高度并行的多任务并行绘制系统结构  

A Highly Parallel Archtecture for Multi-task Parallel Graphics Renderign System

作　　者：彭敏峰[1] 曾亮[1] 陆筱霞[1] 李思昆[1] 

机构地区：[1]国防科学技术大学计算机学院,湖南长沙410073

出　　处：《计算技术与自动化》2006年第3期63-66,共4页Computing Technology and Automation

基　　金：国家973计划课题资助(2002CB312105);国家发改委CNGI专项子课题"访问网格建设"的资助(CNGI-04-15-7A)

摘　　要：随着计算机图形技术的实用化,需要构造更逼真、更精细的三维复杂场景,其数据规模日益膨胀,加上对场景的实时交互的要求也越来越高,人们对多屏幕高分辨率显示的需求与日俱增,迫切需要一种针对大规模复杂场景的多任务并行图形绘制系统。本文介绍了一种适用于大规模复杂场景的高度并行的多任务多屏幕并行图形绘制系统的体系结构,支持图形任务的并行化处理和多屏幕显示。该系统结构将几何计算任务与图形绘制任务相分离,分别进行并行化处理,在计算节点按绘制对象类型对任务进行分类以便于并行计算和任务分配,在绘制节点对各个小块屏幕图形进行并行合成。实验测试结果表明,该系统结构对多任务具有较好的并行效率和可扩展性,能够充分利用系统的并行计算资源,达到较好的绘制效果。Along with computer graphics technology become more practical, it need to construct 3D complex scene more reality and refined. At the same time, the need of multi-screen and high resolution display increases steadily, Due to very large scale data and real- time interaction reguirzmelots, designing a multi - task parallel graphics rendering system for large scale complex scene is necessary. This paper describes the architecture of a multi - screen and multi - task parallel graphics rendering system. It supports parallel processing of multi - task and multi screen display. This system separates tasks of geometry computing from graphics rendering, and parallelizes them. It distributes tasks for the type of rendering object on computing node, and parallel composes parts of the result on each rendering node. Experiments show that it has better parallel efficiency and scalability, can take full advantage of its own resources, and has wonderful rendering effect.

关 键 词：三维复杂场景 并行图形绘制 体系结构 多任务 任务分配 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]