Monte Carlo evaluation of non-linear scattering equations for subsurface reflection

M. Pharr, P. Hanrahan
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引用次数: 119

Abstract

We describe a new mathematical framework for solving a wide variety of rendering problems based on a non-linear integral scattering equation. This framework treats the scattering functions of complex aggregate objects as first-class rendering primitives; these scattering functions accurately account for all scattering events inside them. We also describe new techniques for computing scattering functions from the composition of scattering objects. We demonstrate that solution techniques based on this new approach can be more efficient than previous techniques based on radiance transport and the equation of transfer and we apply these techniques to a number of problems in rendering scattering from complex surfaces.
地下反射非线性散射方程的蒙特卡罗计算
我们描述了一个新的数学框架,用于解决基于非线性积分散射方程的各种渲染问题。该框架将复杂聚合对象的散射函数作为一级渲染原语;这些散射函数准确地解释了它们内部的所有散射事件。我们还描述了从散射物体的组成计算散射函数的新技术。我们证明了基于这种新方法的解决技术可以比以前基于辐射传输和传递方程的技术更有效,并且我们将这些技术应用于绘制复杂表面散射的许多问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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