《An Introduction to Ray Tracing》—— 2.4 Ray/Box Intersection
2017-05-21 20:12
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总结《An Introduction to Ray Tracing》全文:点这里http://blog.csdn.net/libing_zeng/article/details/72603619
首先,考虑简单box,即每条边都和坐标轴平行的box:
问题三十三:怎么用ray tracing画特殊长方体(box)
当时,觉得奇怪,为什么书上只介绍了这类特殊长方体的画法呢?那么其他非特殊长方体怎么办呢?当时,根本没有仿射变换(Affine Transformation)的概念。所以,一直纠结怎么画非特殊长方体,不过总算倒腾出来了,原理和仿射变换差不多。
问题三十四:怎么用ray tracing画任意长方体(generalized box)
总结《An Introduction to Ray Tracing》全文:点这里http://blog.csdn.net/libing_zeng/article/details/72603619
首先,考虑简单box,即每条边都和坐标轴平行的box:
问题三十三:怎么用ray tracing画特殊长方体(box)
当时,觉得奇怪,为什么书上只介绍了这类特殊长方体的画法呢?那么其他非特殊长方体怎么办呢?当时,根本没有仿射变换(Affine Transformation)的概念。所以,一直纠结怎么画非特殊长方体,不过总算倒腾出来了,原理和仿射变换差不多。
问题三十四:怎么用ray tracing画任意长方体(generalized box)
总结《An Introduction to Ray Tracing》全文:点这里http://blog.csdn.net/libing_zeng/article/details/72603619
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