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| 20-12-06 / 22:29 : VISTA UI isn't 3D (cjed) |
| Aero Windows VISTA UI isn't true 3D... the "flip" effect of windows when switching applications (alt tab) uses the same principle as OSX Quartz 2D (or Novell XGL Linux), this is false 3D : the video card (thanks to OpenGL on OSX, DirectX on VISTA) retreives windows content (as it is in the bitmap back buffer) as a large texture and applies transformations. That is the fact on OSX for genius effect, Exposé, etc. UI elements aren't defined in 3D. A video card cannot render complexe and precise graphics, for example fonts. So other rendering are in 2D. Tiger uses draw primitives that can take benefit from the video card, and Leopard should go further (Quartz 2D Extreme from Tiger is still years ahead of VISTA graphic engine, because it has evolved many times since the first version in 2002...). OSX also manages dynamic shadows for windows, menus, etc. (computed in teal time with 64 bits precision) and other compositing effects (transparency in menus, dialogs, windows - for example the terminal windows -, since 2000. Apple increased opacity in each new version of OSX and decreased the 3D appearence of buttons, to make the UI more readable...). OSX UI evolutions Quartz 2D --> Quartz 2D Extreme from 10.0 to 10.4 Flip windows on OSX |
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