Collaborative Project: Research on Parallel Raycasting Engines and CAD/CAE/CAM Applications

合作项目：并行光线投射引擎及CAD/CAE/CAM应用研究

• 批准号: 9007501
• 负责人: Herbert Voelcker
• 金额: $ 64.31万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9007501&HistoricalAwards=false
• 关键词: Collaborative; Project; Research; Parallel; Raycasting

This is part of a joint project at Cornell and Duke Universities to continue the successful research on custom hardware for solid modelling. Duke is extending and improving the hardware itself, while Cornell is building software for constructive solid geometry (CSG), integrating the resulting system with applications, and conducting field tests. The initial 8-processor system is being upgraded to 256 processors, to allow parallel processing of more complex objects. At the same time, the numerical precision of the hardware is being increased, and a tag system is included to allow the processors to keep track of software-specified properties of parts of objects. The software and applications are being extended not only to use these hardware changes, but also to include algorithmic improvements. Among the improvements foreseen are enhanced ability to translate from other representations, such as nurbs (non-uniform recursive B-splines) and boundary representations, into the CSG trees that are used by this system.

这是康奈尔大学和杜克大学联合项目的一部分，旨在继续对实体建模定制硬件进行成功研究。 杜克大学正在扩展和改进硬件本身，而康奈尔大学正在构建构造实体几何（CSG）软件，将所得系统与应用程序集成，并进行现场测试。 最初的 8 处理器系统正在升级到 256 处理器，以允许并行处理更复杂的对象。 同时，硬件的数值精度正在提高，并且包含标签系统，以允许处理器跟踪对象部分的软件指定属性。 软件和应用程序的扩展不仅可以使用这些硬件更改，还可以包括算法改进。 预计的改进包括从其他表示（例如 nurb（非均匀递归 B 样条）和边界表示）转换为该系统使用的 CSG 树的能力得到增强。