Real-Time Walkthroughs of Serious Synthetic Environments

严肃合成环境的实时演练

• 批准号: 9876914
• 负责人: Dinesh Manocha
• 金额: $ 47.86万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-06-01 至 2004-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9876914&HistoricalAwards=false
• 关键词: Real; Time; Walkthroughs; Serious; Synthetic

The goal - so far not entirely realized - of synthetic environments is toprovide a realistic experience for their users. In particular, theseenvironments can be used for active collaboration on engineering designsand medical applications. This project attacks some of the most importantoutstanding problems in the field of real-time synthetic environments:1) Develop a scalable system to achieve real-time walkthrough of very largeCAD models with high-accuracy rendering of spatial arrangements.2) Develop parallel rendering algorithms that take into account emerginggraphics architectures with multiple graphics pipelines and general-purposeprocessors.3) Develop incremental algorithms to allow interactive updates to largedynamic environments, allowing objects to be moved, added, and removed inrealistic manners.Among the algorithms that the project will explore are visibility culling,multi-resolution methods, model simplification, image-based rendering,3-Dimage warping, multi-pass rendering, and efficient updates for modelhierarchies, occlusion databases, and level-of-detail generation. Theseadvances will be tested on real-world models, including a 13million-element polygonal model of an electric generating station.

合成环境的目标--到目前为止还没有完全实现--是为用户提供现实的体验。特别是，这些环境可用于工程设计和医疗应用方面的主动协作。该项目解决了实时合成环境领域中一些最重要的突出问题：1)开发了一个可扩展的系统，以实现超大型CAD模型的实时漫游，并具有高精度的空间布局渲染；2)开发并行渲染算法，考虑到新兴的具有多个图形流水线和通用处理器的图形体系结构；3)开发增量算法，允许对大型动态环境进行交互更新，允许移动、添加和移除不真实的方式。该项目将探索的算法包括可见性剔除、多分辨率方法、模型简化、基于图像的渲染、3-D图像扭曲、多遍渲染以及模型的高效更新、层次结构遮挡数据库和细节层次生成。这些进展将在真实世界的模型上进行测试，包括一个有1300万个元素的发电站多边形模型。