Distributed ray tracing
Distributed ray tracing
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DOI：
10.1145/280811.280978
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发表时间：
1984-01
期刊：
影响因子：
--
通讯作者：
R. L. Cook;Thomas K. Porter;L. Carpenter
中科院分区：
文献类型：
--
作者：
R. L. Cook;Thomas K. Porter;L. Carpenter
光线跟踪是计算机图形学中最优雅的技术之一。许多使用其他技术很难或不可能实现的现象在光线跟踪中变得简单，包括阴影、反射和折射光。然而，射线方向已经被精确地确定，这限制了射线跟踪的能力。通过根据它们采样的解析函数分布射线的方向，射线追踪可以包含模糊现象。这为一些以前未解决或部分解决的问题提供了正确和简单的解决方案，包括运动模糊，景深，半影，半透明和模糊反射。运动模糊和景深计算可以与可见表面计算集成，避免了以前方法中发现的问题。
Ray tracing is one of the most elegant techniques in computer graphics. Many phenomena that are difficult or impossible with other techniques are simple with ray tracing, including shadows, reflections, and refracted light. Ray directions, however, have been determined precisely, and this has limited the capabilities of ray tracing. By distributing the directions of the rays according to the analytic function they sample, ray tracing can incorporate fuzzy phenomena. This provides correct and easy solutions to some previously unsolved or partially solved problems, including motion blur, depth of field, penumbras, translucency, and fuzzy reflections. Motion blur and depth of field calculations can be integrated with the visible surface calculations, avoiding the problems found in previous methods.