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基于辐射传输预计算的绘制技术
释义
基于辐射传输预计算的绘制技术
Encyclopedia
理学
快速图形绘制技术
释
precomputed radiance transfer; PRT
基于辐射传输预计算的绘制技术
将环境光源近似为某基函数簇的线性组合,并预先计算该基函数簇的辐射传输分量,从而将每个点上的绘制计算简化为一个点积,实现了动态环境光源下的快速绘制。2002年,微软研究院的斯隆(Sloan)研究员提出了辐射传输预计算(precomputed radiance transfer,PRT)技术,此技术可以实现逼真的全局光照绘制效果,并同时达到实时的绘制帧率,后成为图形绘制加速的主流技术之一。给定一个静态场景,在动态的环境光照下,每一点的绘制计算涉及半球面上的积分,计算量较大。
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gold and silver wares of the Liao Dynasty
gold and silver wares of the pre-Qin period
gold and silver wares of the Qin and Han Dynasties
gold and silver wares of the Song and Yuan Dynasties
gold and silver wares of the Spring and Autumn and the warring states periods
gold and silver wares of the Tang Dynasty
gold and silver wares of the Wei,Jin,and Southern and Northern Dynasties
gold and silver works
gold and silver works in the Ming and Qing Dynasties
Gold Award Huiming tea
Goldbach
Goldbach comet
Goldbach conjecture
Goldbach number
Goldbach partition
Goldbach problem
Goldbach's conjecture
Goldbach theorem
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