V2EX mipmap

Mipmap

释义 Definition

mipmap(计算机图形学)指纹理的多级渐远细节(LOD)预过滤版本:把同一张纹理按 1/2、1/4、1/8…逐级缩小,形成一组“金字塔”层级。渲染时根据物体在屏幕上的大小自动选用合适层级,可减少远处纹理闪烁与锯齿(aliasing),提升采样效率与画面稳定性。

发音 Pronunciation

/mp.mp/

例句 Examples

The game uses mipmaps to keep distant textures stable.
游戏使用 mipmap 来让远处的纹理更稳定、不闪烁。

Without mipmapping, the floor pattern can shimmer badly as the camera moves, because high-frequency texture details get undersampled.
如果不用 mipmap,摄像机移动时地板花纹可能会严重“闪烁”,因为纹理的高频细节被采样不足。

词源 Etymology

mipmap 一词常被解释为来自 “MIP map”:其中 MIP 与拉丁短语 multum in parvo(“小中见多 / 以小容多”)相关,强调用一组更小的贴图层级来表达同一纹理;map 指纹理贴图。该技术在 20 世纪 80 年代的图形学研究与硬件发展中被系统化并广泛应用。

相关词 Related Words

文学与作品 Literary Works

  • Pyramidal Parametrics(Lance Williams,1983)经典图形学论文,系统讨论与 mipmap 金字塔思想相关的纹理过滤与层级表示
  • OpenGL Programming Guide(“Red Book”)在 OpenGL 纹理章节中讲解 mipmap 的使用与相关 API
  • Real-Time Rendering(Akenine-Mller 等)实时渲染教材中讨论 mipmapping、纹理过滤与走样控制
  • GPU Gems(NVIDIA 编)多篇文章提到 mipmap 与纹理过滤在 GPU 上的实现与优化
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