V2EX radiosity

Radiosity

释义 Definition

Radiosity 指“辐射度”:在辐射传热与计算机图形学中,用来表示某个表面单位面积向外“发出”(包括自身发射与反射来的)辐射能量的总量。计算机图形学里常用于全局光照中的“辐射度算法”,用来模拟光在表面之间多次反弹后的柔和明暗与色彩渗染效果。
(该词在不同领域的物理量定义与单位表达会有所差异,但核心都与“表面向外的辐射能量”相关。)

发音 Pronunciation

/redisti/

例句 Examples

Radiosity helps simulate soft lighting in a room.
辐射度有助于模拟房间里柔和的光照效果。

In architectural visualization, radiosity can capture subtle color bleeding between walls and furniture, making the scene look more realistic.
在建筑可视化中,辐射度可以表现墙面与家具之间细微的颜色相互“渗色”,让画面更逼真。

词源 Etymology

radiosity 来自 **radio-**(与“辐射”有关,源于拉丁语 radius,意为“光线、射线”)+ -osity(构成名词,表示“性质/状态/程度”,如 curiosity)。整体含义可理解为“与辐射相关的性质/量”。

相关词 Related Words

文学与经典著作中的用例 Notable Works

  • Computer Graphics: Principles and Practice(《计算机图形学:原理与实践》)在全局光照与辐射度方法的相关章节中讨论该概念与算法。
  • Real-Time Rendering(《实时渲染》)涉及全局光照近似与辐射度思想在实时图形中的应用与对比。
  • Physically Based Rendering: From Theory to Implementation(《基于物理的渲染:从理论到实现》)在基于物理的光传输框架中对相关量与全局光照方法进行阐述。
  • Cohen, Greenberg 等论文 “A Progressive Refinement Approach to Fast Radiosity Image Generation”(渐进细化辐射度经典论文)辐射度算法在学术与工程中的代表性来源之一。
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