![]() ![]() This means that we'll need to rewrite large parts of Photoshop and its plug-ins (potentially affecting over a million lines of code) to move it from Carbon to Cocoa. This means that 64-bit Mac apps need to be written to use Cocoa (as Lightroom is) instead of Carbon. The reason for this delay is due to Apple's abrupt dropping of Carbon 64-bit support:Īt the WWDC show last June, however, Adobe & other developers learned that Apple had decided to stop their Carbon 64 efforts. With these massive sizes and with enough RAM (32GB given as example), you can see substantial (10x) improvements.Īdobe expects that Mac users will have to wait until CS5 before getting full 64-bit support. ![]() The reason for the discrepancy, however, is not due to a lack of interest or support from Adobe, but for more practical reasons.įirst off, Nack admits that the 64-bit version of Photoshop will see modest speed increases (8-12%) but the biggest advantage will be for those using massive images (a 3.375 gigapixel image is given as an example). The Mac version of CS4 will remain at 32-Bit. Adobe's John Nack writes about the future plans for Adobe Photoshop CS4 and CS5, revealing that Adobe Photoshop CS4 will include 64-Bit support, but for Windows only.
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