- published: 02 May 2015
- views: 19556
A framebuffer (frame buffer, or sometimes framestore) is a portion of RAM containing a bitmap that is driven to a video display from a memory buffer containing a complete frame of data.
The information in the memory buffer typically consists of color values for every pixel (point that can be displayed) on the screen. Color values are commonly stored in 1-bit binary (monochrome), 4-bit palettized, 8-bit palettized, 16-bit high color and 24-bit true color formats. An additional alpha channel is sometimes used to retain information about pixel transparency. The total amount of the memory required to drive the framebuffer depends on the resolution of the output signal, and on the color depth and palette size.
Framebuffers differ significantly from the vector displays that were common prior to the advent of faster graphics (and consequently the concept of a framebuffer). With a vector display, only the vertices of the graphics primitives are stored. The electron beam of the output display is then commanded to move from vertex to vertex, tracing an analog line across the area between these points. With a framebuffer, the electron beam (if the display technology uses one) is commanded to trace a left-to-right, top-to-bottom path across the entire screen, the way a television renders a broadcast signal. At the same time, the color information for each point on the screen is pulled from the framebuffer, creating a set of discrete picture elements (pixels).
Tutorial series about programming 3D water using OpenGL! Rendering to textures this week using FBOs. Fame Buffer Object code: https://www.dropbox.com/sh/h0a66jc0ml9j1qh/AACyLeZpTPbwZq-bFuwOOt7ia?dl=0 Rough Schedule (subject to change): 1. Introduction 2. Rendering to textures 3. Clipping planes 4. Du Dv Maps 5. Fresnel Effect 6. Lighting 7. More Lighting 8. Soft Edges 9. Depth Effects Tumblr: http://thinmatrix.tumblr.com/ Facebook Page: https://www.facebook.com/thinmatrix Instagram: http://instagram.com/thin_matrix Twitter: https://twitter.com/ThinMatrix Check out my game on IndieDB: http://www.indiedb.com/games/socuwan Contact me: thinmatrix@gmail.com End of video music- Kai Engel, "Waking Stars": http://freemusicarchive.org/music/Kai_Engel/Evening_Colors/01_-_Waking_Stars
Frame Buffer provide a memory mapped programming interface to Video Display. Frame Buffer provide Video Interface Block accept pixel value from FB, stream pixel value and control signal to physical device.
In this tutorial we take a look at a very cool and very poerful technique in OpenGL called Frame Buffer Objects, which allows you to render to an offscreen buffer and it makes possible a lot of cool effects, like dynamic reflections/refractions, shadow mapping, post-processing in GLSL... In this tutorial we render a model to a texture, and texture a quad with it, here is the source: http://www.mediafire.com/?p6lgv94d1urx2id --------------------------- OpenGL is a 3D graphics library which can be used for games or other 3D applications, here is two great resource to learn the modern (OpenGL 3.2+) OpenGL: http://ogldev.atspace.co.uk/index.html http://research.ncl.ac.uk/game/mastersdegree/graphicsforgames/
Did you know an LCD monitor doesn't really have a refresh rate? Do you know what the V-Sync On/Off setting in your game really does? Do you know how frame buffers work and tie all this together? I explain how all these thgins are related, how they work under teh hood, and when you should adjust your settings in your game and why!
http://filmsbykris.com http://www.patreon.com/metalx1000 Notes: http://pastebin.com/ee0cngr9 For help: http://filmsbykris.com/irc FaceBook: https://www.facebook.com/pages/Films-By-Kris/225113590836253 Intro Video by Milan Ristic
f you appreciate what I do and would like to shout me a beer... please click the following link... https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business;=GUHDV4XSP9EBE&lc;=AU&item;_name=Linux4UnMe¤cy;_code=AUD&bn;=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted blog.samat.org/2010/11/09/High-resolution-text-console-with-uvesafb-and-Debian
Source code: https://github.com/Daivuk For any questions regarding those tutorials: daivuk@gmail.com
Package: fbi Description: Linux frame buffer image viewer This is an image viewer for Linux frame buffer devices. It has built-in support for a number of common image file formats. For unknown files, it tries to use convert from the ImageMagick package as an external converter. It also includes fbgs, a Postscript and PDF viewer. Homepage: http://linux.bytesex.org/fbida/ NAME fbgs - poor man's PostScript/pdf viewer for the linux framebuffer console DESCRIPTION fbgs is a simple wrapper script which takes a PostScript or pdf file as input, renders the pages using ghostscript into a temporary directory and finally calls fbi to display them. Package: mplayer Description: movie player for Unix-like systems MPlayer plays most MPEG, VOB, AVI, Ogg/OGM, VIVO, AS...