V2EX brdf

BRDF

释义 Definition

BRDFBidirectional Reflectance Distribution Function 的缩写,中文常译为双向反射分布函数:用于描述光从某一入射方向照射到表面后,向某一出射方向反射的比例与分布,是计算机图形学与渲染中刻画材质“看起来像什么”的核心模型之一。(在不同语境中也可能泛指一类反射模型的统称。)

发音 Pronunciation (IPA)

/bi r di f/

例句 Examples

We used a BRDF to make the metal look more realistic.
我们使用了一个 BRDF,让金属看起来更逼真。

A measured BRDF can capture subtle changes in reflectance across angles, improving physically based rendering in complex lighting.
实测的 BRDF 能捕捉反射率随角度变化的细微差别,从而在复杂光照下提升基于物理的渲染效果。

词源 Etymology

BRDF 属于首字母缩略词,来自 Bidirectional(双向的)+ Reflectance(反射率/反射特性)+ Distribution(分布)+ Function(函数)。该术语在光学与计算机图形学中被广泛采用,用于以数学形式表达表面反射行为。

相关词 Related Words

文学与作品 Literary Works

  • Physically Based Rendering: From Theory to Implementation(PBRT,渲染领域经典教材,多处系统讲解 BRDF/BSDF)
  • Real-Time Rendering(实时渲染权威教材,涵盖 BRDF、微表面模型与实际应用)
  • Cook & Torrance, “A Reflectance Model for Computer Graphics”(经典论文,相关反射模型常与 BRDF 讨论并行出现)
  • Disney Research, “Physically-Based Shading at Disney”(业界著名材质/着色框架文章,频繁涉及 BRDF 思路与实现)
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