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首页> 外文会议>CIE Expert Symposium on Visual Appearance >METALS, ALLOYS AND LIGHTING: OPTICAL PROPERTIES AND SPECTRAL SIMULATION IN COMPUTER GRAPHICS
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METALS, ALLOYS AND LIGHTING: OPTICAL PROPERTIES AND SPECTRAL SIMULATION IN COMPUTER GRAPHICS

机译：金属，合金和照明：计算机图形学中的光学性质和光谱仿真

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After a short description of the modelling of the optical behaviour of metals and alloys, we shall present the method of optical data acquisition. These pertinent data used for the rendering and the optical simulation of metallic objects exclusively are the complex dielectric functions and more generally the complex dielectric tensor. The influence of the state of surface will also be re-called within the lighting process description. Ambient lighting, formulated on the bases of Walsh's historical model (1926), Judd's works (1942) and Mandelis (1994) will be enhanced thanks to the complex dielectric function not enough used in the computer graphics community and originated from the electromagnetism formalism. The optical data acquisition by spectroscopic ellipsometry leads to the optical index and the absorption index of the metallic sample studied. Mainly bulk metallic materials will be treated and the size effect on the optical constants ignored. The directional lighting will also be introduced and illustrated by a didactic movie available in many languages (French, Greek and Chinese). An example will illustrate our purpose.
机译：在简短描述金属和合金的光学行为的建模之后，我们将介绍光学数据采集的方法。这些相关数据用于渲染和金属物体的光学模拟专门是复杂的介电功能，更通常是复杂的介电张量。还将在照明过程描述中重新调用表面状态的影响。在沃尔什历史模型（1926）的基地上制定的环境照明，Judd的作品（1942）和Mandelis（1994）将通过在计算机图形界中使用的复杂电介质功能来提高，并源于电磁形式主义。光学数据采集通过光谱椭圆形测定导致光学指数和所研究的金属样品的吸收指数。主要将处理散装金属材料，并忽略光学常量的尺寸效应。方向照明也将由许多语言（法语，希腊语和中文）中提供的教学电影引入和说明。一个例子将说明我们的目的。

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