| Quartz (graphics Layer) |
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Information AboutQuartz (graphics Layer) |
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Quartz is the marketing name of the graphics layer of the Mac OS X operating system. Quartz is part of the Core Graphics framework. Quartz directly supports Aqua by displaying Two-dimensional Graphics to create the user interface, including on-the-fly Rendering and Anti-aliasing . Text can be rendered with sub-pixel precision but graphics are limited to more traditional Anti-aliasing , which is optional although the default mode of operation. There are two components that make up Quartz: ; Quartz Compositor : A compositing windowing system that manages and composites off-screen window bitmaps to create the Mac OS X user interface. ; Quartz 2D : A graphics library based on the paradigms of the Portable Document Format to draw two-dimensional text and graphics. If AltiVec is available Quartz will take advantage of it. Quartz Compositor can be accelerated via hardware rendering on the GPU supported AGP graphics cards, this feature has been marketed as Quartz Extreme. Accelerating Quartz 2D using GPU is under development, it is called Quartz 2D Extreme. A version of this technology has already shipped with 10.4 (Tiger). At this time (10.4.5) it is not enabled by default and Apple strongly cautions against using it because it can lead to video redraw issues and kernel panics. Quartz is extended in Mac OS X Tiger with Core Image and Core Video , which provide real-time video and graphics manipulations. SEE ALSO Quartz Compositor EXTERNAL LINKS
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