V2EX hdri

HDRI

定义 Definition

HDRIHigh Dynamic Range Imaging 的缩写,指“高动态范围成像/图像”。它常用于摄影与计算机图形(CG)中,表示能记录或呈现更宽亮度范围(从很暗到很亮细节都更完整)的图像;在 3D 渲染里也常指用于环境照明与反射的 HDR 全景贴图(environment map)。

发音 Pronunciation (IPA)

/et di r a/

词源 Etymology

HDRI 来自短语 High Dynamic Range Imaging

  • High(高的)+ Dynamic Range(动态范围:最亮与最暗之间的范围)+ Imaging(成像)。
    随着数码摄影与电影级视觉效果的发展,这个缩写在摄影、后期与 3D 行业中逐渐普及。

例句 Examples

I used an HDRI to light the 3D scene.
我用一张 HDRI 来给这个 3D 场景打光。

Without HDRI, bright skies often blow out while shadows lose detail, but HDRI can preserve both.
没有 HDRI 时,明亮的天空常常会过曝、阴影也会丢细节;而 HDRI 能同时保留两者的细节。

相关词 Related Words

文献与作品 Notable Works

  • Real-Time Rendering(Akenine-Mller 等):讨论高动态范围在实时图形与渲染管线中的应用。
  • Physically Based Rendering: From Theory to Implementation(Pharr 等):涉及基于物理的光照计算与高动态范围相关的表示方式。
  • Digital Lighting and Rendering(Jeremy Birn):介绍使用 HDRI 进行环境光照与渲染的实践方法。
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