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辐射度技术用于随机分维几何面的全局光照计算
引用本文:吴恩华. 辐射度技术用于随机分维几何面的全局光照计算[J]. 计算机学报, 1995, 18(5): 321-329
作者姓名:吴恩华
作者单位:中国科学院软件研究所计算机科学开放实验室,中国科学院计算技术研究所CAD开放实验室
摘    要:分维几何为模拟自然体和景物提供了十分卓越的工具,然而,分维几何的造型是一个无限细分的随机造型过程,这就为分维几何的绘制带来了极大的困难,到目前为止,只有某些特殊的光线跟踪技术能够用于绘制分维几何曲面,主要产生高光效果。

关 键 词:辐射度 分维几何 全局光照 计算机绘图

GLOBAL ILLUMINATION OF RANDOM FRACTAL SURFACES BY RADIOSITY SOLUTION
Wu Enhua. GLOBAL ILLUMINATION OF RANDOM FRACTAL SURFACES BY RADIOSITY SOLUTION[J]. Chinese Journal of Computers, 1995, 18(5): 321-329
Authors:Wu Enhua
Abstract:This paper proposes a radiosity solution for rendering random fractals,in which diffuse interreflection can be calculated in the process of stochastic modelling. By this solutipn, the recursive process of fractal generation is naturally incorporated into the progressive refinement procedure of radiosity solution.Particularly, it becomes possible, for fractal surfaces to participate into energy shooting process of radiosity solution. The key problem in the proposed approach is in calculating the radiosity redistrbution for fractal subdivision.Algorithm for solving the problem hag been proposed and implemented.Test examples show that the method is quite efficient. The technique may improve the visual realism of radiosity image and promote the practical value of radiosity solution.
Keywords:Radiosity  fractal geometry  global illumination  random fractals.
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