V2EX subsurface scattering

Subsurface Scattering

Definition 定义

Subsurface scattering(次表面散射)指光线进入半透明或半不透明材质(如皮肤、蜡、大理石、牛奶等)后,在材料内部多次散射并从其他位置射出,从而产生柔和、带“透光感”的明暗过渡与边缘泛光的视觉效果。计算机图形学中常用它来更真实地渲染皮肤与蜡质物体等。(也常简写为 SSS

Pronunciation 发音(IPA)

/sbsrfs sktr/

Examples 例句

Subsurface scattering makes the candle look like it’s glowing from within.
次表面散射让蜡烛看起来像是从内部在发光。

In realistic character rendering, artists tune subsurface scattering to capture how light diffuses through layers of skin.
在逼真的角色渲染中,美术师会调整次表面散射,以表现光线如何在皮肤的多层结构中扩散。

Etymology 词源

Subsurfacesub-(在……之下) + surface(表面) 组成,表示“表面之下”。Scattering 来自动词 scatter(散射、散开)。组合成 subsurface scattering,字面意思就是“在表面之下发生散射”,用于描述光进入材质内部后发生的散射现象。该术语在计算机图形学与光学语境中广泛使用。

Related Words 相关词

Literary Works 作品中的用例

  • Physically Based Rendering: From Theory to Implementation(PBRT;计算机图形学经典教材,讨论皮肤/蜡等材质的次表面散射模型与实现)
  • Real-Time Rendering(实时渲染权威书籍,介绍游戏与交互应用中的SSS近似方法)
  • Henrik Wann Jensen 等人的论文 A Practical Model for Subsurface Light Transport(提出经典的实用次表面光传输模型,常被引用与实现)
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