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Clarify that we're not talking about process context switches but rather (glx|wgl|agl)MakeCurrent |
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The '''frame buffer object''' architecture (FBO) is an extension to [[OpenGL]] for doing flexible off-screen rendering, including rendering to a texture. By capturing images that would normally be drawn to the screen, it can be used to implement a large variety of image filters, and post-processing effects. The FBO is analogous to the '''render targets model''' in [[DirectX]]. It is used in OpenGL for its efficiency and ease of use. The use of FBOs doesn't suffer from the overhead associated with OpenGL drawing context switching, and has largely superseded the [[pbuffer]] and other methods involving context switches.
== Uses ==
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