超级计算机辅助大脑可视化扩展射线追踪器

D. Stredney, R. Yagel, S. F. May, M. Torello
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引用次数: 11

摘要

体绘制过程的计算量很大,特别是在需要高质量成像的情况下。我们提出了一种基于分布式系统的逼真体绘制方法,该系统具有用于场景构图和预可视化的工作站前端,并以超级计算机作为主要渲染引擎。我们报告了一种新的,方便的方法来扩展任意基于su$ace的光线跟踪器,以支持逼真的体渲染。此外,我们还描述了一种支持由CSG操作操纵的体的射线追踪方法。最后,描述了一种利用CRAY Y-MP超级计算机的多处理器矢量运算能力的高效正演投影算法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Supercomputer assisted brain visualization with an extended ray tracer
The process of volume rendering is computationally intensive especially when high quality imaging is required. We present an approach to realistic volume rendering which is based on a distributed system with a workstation front-end for scene composition andprevisualization, and a supercomputer serving as the primary rendering engine. We report on a new, expedient method for extending arbitrary su$ace-based ray tracers to support realistic rendering of volumes. In aadition, we describe a method for supporting ray tracing of a volume manipulated by CSG operations. Finally, an eficient, forward projection algorithm which exploits the multiprocessor, vector-arithmetic capabilities of the CRAY Y-MP supercomputer is described.
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