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by barrettcolin
5429 days ago
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My understanding is, "drawing" (in-view composition) is largely, if not completely, software (Quartz2D). Composition between views is (can be, at least) handled by the GPU; and that may well include animation of views. I don't know how absolutely accurate it is to say that such composition 'uses OpenGL'. It may use hardware that provides OpenGL functionality, but that isn't quite the same thing (Quartz composition could talk directly to the GPU using it's native command format for instance). |
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