Editing Quartz 2D (section)

==History==
Quartz 2D is similar to [[NeXT]]'s [[Display PostScript]] in its use of contexts. It first appeared as the 2D graphics rendering library called Core Graphics Rendering; along with Core Graphics Services (Compositing), it was wrapped into the initial incarnation of Quartz.<ref>{{cite web | title=Ars Technica - Mac OS X DP4 | url=https://arstechnica.com/reviews/2q00/macos-x-dp4/macos-x-dp4-4.html | access-date=2007-01-25}}</ref> Quartz (and its renderer) were first demonstrated at WWDC in May 1999.<ref>{{cite web | title=Ars Technica - Mac OS X Update: Quartz & Aqua | url=https://arstechnica.com/reviews/1q00/macos-x-gui/macos-x-gui-2.html | access-date=2007-01-25}}</ref>

Presently, the name ''Quartz 2D'' more precisely defines the 2D rendering capabilities of Core Graphics (Quartz). With the release of Mac OS X 10.2, marketing attention focused on [[Quartz Extreme]], the composition layer, leaving the term "Quartz" to refer to the Core Graphics framework or just its 2D renderer. Presently, ''Quartz'' technologies can describe all of the rendering and compositing technologies introduced by macOS (including [[Core Image]] for example).

Prior to Mac OS X Tiger, QuickDraw rendering outperformed that of Quartz 2D. Mac OS X 10.4 rectified this, substantially increasing the standard rendering performance of Quartz 2D.<ref name="Ars 10.4">[https://arstechnica.com/apple/2005/04/macosx-10-4/14/ Mac OS X 10.4 Tiger | Ars Technica]</ref> Tiger also introduced Quartz 2D Extreme: optional graphics processor (GPU) acceleration for Quartz 2D, although it is not an officially supported feature.<ref name="Ars 10.4" /> Quartz 2D Extreme is disabled by default in Mac OS X 10.4 because it may lead to video redraw issues or kernel panics.<ref>{{cite web | title=Apple - Info - Docs - About the Mac OS X 10.4.3 Update (Delta) | url=http://docs.info.apple.com/article.html?artnum=301984 | access-date=2007-08-19 | archive-url=https://web.archive.org/web/20071016043656/http://docs.info.apple.com/article.html?artnum=301984 | archive-date=2007-10-16 | url-status=dead }}</ref> In Mac OS X Leopard, Quartz 2D Extreme was renamed QuartzGL.