V2EX front buffer

Front Buffer

释义 Definition

front buffer(计算机图形学/显示)指当前正在被显示器扫描并显示的帧缓冲区(前台缓冲)。在“双缓冲/多缓冲”中,它通常与 back buffer(后台缓冲)相对:后台缓冲用于渲染,交换(swap/flip)后成为前台显示。该术语在不同图形 API/平台上细节略有差异。

发音 Pronunciation (IPA)

/frnt bfr/

例句 Examples

The front buffer is what you see on the screen.
前台缓冲就是你在屏幕上看到的那一帧。

To avoid tearing, the system waits for v-sync before swapping the back buffer into the front buffer.
为避免画面撕裂,系统会等待垂直同步后再把后台缓冲交换为前台缓冲来显示。

词源 Etymology

front 意为“前面的/前台的”,buffer 原指“缓冲器、缓冲区”(用于临时存放数据以平滑处理过程)。合在一起,“front buffer”字面即“前面的缓冲区”,在图形显示语境中引申为“当前用于输出到屏幕的那块缓冲区”。

相关词 Related Words

文学与著作中的用例 Notable Works

  • OpenGL Programming Guide(“红宝书”,讨论帧缓冲/前后台缓冲与交换)
  • Computer Graphics: Principles and Practice(涉及帧缓冲与显示管线概念)
  • Microsoft DirectX 文档与相关教程书籍(如关于 swap chain、front/back buffer 的说明)
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