支持HLA仿真和并行绘制的统一对象模型研究  

Research on Unified Object Model Supporting HLA-Based Simulation and Parallel Rendering

作　　者：王总辉[1] 熊华[1] 姜晓红[1] 石教英[1] 

机构地区：[1]浙江大学CAD & CG国家重点实验室,杭州310058

出　　处：《计算机研究与发展》2008年第2期329-336,共8页Journal of Computer Research and Development

基　　金：国家"九七三"重点基础研究发展规划基金项目(2002CB312105);国家自然科学基金重点项目(60533080)

摘　　要：随着计算机硬件、软件、网络以及社会需求的发展,分布式交互仿真应用对大规模复杂场景和大量仿真实体对象的管理能力和绘制能力提出了较高的要求.针对现有HLA仿真应用中大规模复杂场景的视景仿真实时性较差、仿真实体对象管理与绘制对象管理是分离的等问题,提出了统一对象模型,包含异质实体对象树、操作记录列表和统一访问接口,实现了仿真实体对象和绘制对象的高效组织和统一管理.该统一对象模型在HLA仿真平台和并行绘制平台之间建立了高效的数据交换桥梁,减轻了两者集成的开发工作量,并有效地支持了大规模复杂场景和大量仿真实体对象的实时绘制,有助于提高仿真的实时性.该统一对象模型对于HLA仿真平台和并行绘制平台具有通用性.最后给出了实验结果和分析.With the development of computer hardware, network, and software technology, and also with the development of social requirements, distributed interactive simulation applications which involve massive complex scene and large quantity of simulation entity objects put high demand on simulation object management capability and scene rendering ability. There are two problems in the existing HLA-based distributed interactive simulation applications. One is the fact that the timeliness of scene simulations with massive complex scene are bad. The other is that the management of simulation entity object and the management of rendering object are separate. In order to solve the above problems, a unified object model consisting of heterogenous scene graph tree, action list and universal access interface, is presented, realizing the efficient organization and unified management of simulation entity object and rendering object. The unified object model builds a bridge for high efficient data exchange between HLA-based simulation platform and parallel rendering platform, reducing the development workload of integration between them, and supporting the real-time rendering of massive complex scene and large quantity of simulation entity object to help to enhance the timeliness of scene simulation. The unified object model is a common method for HLA-based simulation platform and parallel rendering platform. Finally, an experimental demo with analysis is given.

关 键 词：统一对象模型 对象管理 视景仿真 仿真实时性 并行绘制接口 高层体系结构 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]