Framebuffer

Framebuffer

A framebuffer, also known as a frame store, is a temporary storage device used in computer and television systems to provide quick access to image data for scanning devices like electron guns. It is made up of storage units that correspond to individual pixels on the screen, and the entire framebuffer represents a single frame image. Once rendering is finished, the contents of the framebuffer can be transferred to the screen.From: Tech Terms [2019], A Hitchhiker's Guide to Virtual Reality [2019], Tunnel vision optimization method for VR flood scenes based on Gaussian blur [2021]

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Published in Phillip A. Laplante, Dictionary of Computer Science, Engineering, and Technology, 2017

Phillip A. Laplante

A second application comes from image processing. In this case, double-buffering serves as a mechanism for duplicating the frame-buffer memory by using a two-buffer system in which the image in one buffer is displayed while the image in the other buffer is computed. The newly created image is then displayed by swapping buffer pointers rather than having to copy memory. Double-buffering allows the CPU to have uninterrupted access to one of the buffers while the video controller has access to the other.

Tunnel vision optimization method for VR flood scenes based on Gaussian blur

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Published in International Journal of Digital Earth, 2021

Lin Fu, Jun Zhu, Weilian Li, Qing Zhu, Bingli Xu, Yakun Xie, Yunhao Zhang, Ya Hu, Jingtao Lu, Pei Dang, Jigang You

Each storage unit of the frame buffer corresponds to one pixel on the screen, and the whole frame buffer corresponds to a single frame image. The computer renders each frame image in turn. In this paper, the left and right eye images are rendered as packaged rendered textures by means of single-channel stereo rendering technology. During single-channel stereo rendering, the GPU shares the work of removing the two eyes and calculating shadows. This effort can be eliminated by traversing each scene object once, and the left and right eyes can be rendered synchronously through alternate rendering. (2) Calculation of the Fuzzy Range

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Tunnel vision optimization method for VR flood scenes based on Gaussian blur