V2EX normal mapping

Normal Mapping

释义 Definition

法线贴图(Normal Mapping):一种计算机图形学技术,通过在纹理中存储表面“法线方向”的信息,让低面数模型在光照下呈现出更丰富的凹凸细节与立体感,而不必增加真实几何面数。(常用于游戏与实时渲染;相关概念还有 bump mapping 等。)

发音 Pronunciation (IPA)

/nrml mp/

例句 Examples

Normal mapping makes a flat wall look bumpy.
法线贴图能让一面平坦的墙在光照下看起来有凹凸细节。

By combining normal mapping with physically based shading, the character’s skin retains fine pore detail even on a low-poly mesh.
将法线贴图与基于物理的着色结合后,即使角色使用低面数网格,皮肤也能保留毛孔等细微质感。

词源 Etymology

normal 在这里指“法线”(几何与图形学中垂直于表面的方向向量),mapping 指“映射/贴图”。合起来就是“把法线信息映射到纹理里”的方法,用于影响光照计算,从而制造细节错觉。

相关词 Related Words

文献与著作 Literary Works

  • Real-Time Rendering(Akenine-Mller 等):在实时渲染材质与光照章节中讨论法线贴图的原理与应用。
  • GPU Gems(NVIDIA 编):包含多篇与法线贴图、切线空间与实时着色相关的实践文章。
  • Physically Based Rendering: From Theory to Implementation(Pharr 等):在纹理与着色框架相关内容中涉及法线/扰动法线等概念(与 normal mapping 密切相关)。
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