Mac Format - - WWDC 2015 -

Ap­ple first in­tro­duced its Me­tal ap­pli­ca­tion pro­gram­ming in­ter­face (API) in iOS 8 to im­prove per­for­mance in games. El Cap­i­tan brings it to the Mac, but not just for en­ter­tain­ment. Me­tal is deeply in­te­grated with the sys­tem, re­plac­ing OpenGL as the way ex­ist­ing tech­nolo­gies such as Core An­i­ma­tion and Core Graph­ics talk to your Mac’s hard­ware. Ap­ple claims up to a 50% im­prove­ment in ren­der­ing per­for­mance, and a 50% re­duc­tion in the amount of CPU us­age when ren­der­ing graph­ics, which is said to have a pos­i­tive ef­fect on bat­tery life.

In de­mand­ing cre­ative apps, Ap­ple has al­ready worked with se­lect de­vel­op­ers to as­cer­tain the dif­fer­ence Me­tal will make – a huge one by Adobe’s reck­on­ing, which re­ports per­for­mance in­creased by up to a fac­tor of eight. That means there’s power left over to de­vote to en­hance the in­ter­ac­tiv­ity of cre­ative tools.

Epic Games says Me­tal gave it a 70% re­duc­tion in CPU use over OpenGL, en­abling its Un­real En­gine edit­ing tools to ren­der ef­fects in real time.

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