The plug-in update offers the following benefits when using Adobe Photoshop 5.5 on an Apple Power Macintosh G4 or a Power Macintosh with multiple processors:
- Resolves problems using Photoshop 5.5 with Mac OS 8.6 or 9.0 on a multiprocessor system
- Resolves problems using the Distort filters on RGB or LAB images
-ﾠ Resolves potential problems using the Median and Lighting Effects filters on small selections
-ﾠ Resolves potential problems with color conversions
-ﾠ Improves the speed of many operations
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--ﾠAdobe Photoshop 5.5 for Mac OS
--ﾠApple Power Macintosh G4 computer
--ﾠPower Macintosh computer with multiple processors
See the Additional Notes section in the ReadMe regarding compatibility with third-party upgrade cards.
To install the AltiVecCore Plug-ins Update:
1. Quit Photoshop.
2. Move the AltiVecCore Core plug-in to the Adobe Photoshop 5.5: Plug-Ins: Adobe Photoshop Only: Extensions folder, replacing any earlier version or alias to an earlier version.
3.ﾠ Move the Multiprocessor Extension plug-in to the Adobe Photoshop 5.5: Plug-Ins: Adobe Photoshop Only: Extensions folder, replacing any earlier version.
4.ﾠ Move the LightingEffects plug-in to the Adobe Photoshop 5.5: Plug-Ins: Filters folder, replacing any earlier version.
Note: If you use a G4, Adobe recommends that you delete any earlier versions of the AltiVecCore and Lighting Effects plug-ins that were preinstalled on the system. Also, the interface for the LightingEffects plug-in is available in U.S. English only. If you use a non-English version of Photoshop, installing the LightingEffects plug-in changes the interface of the Lighting Effects filter to U.S. English.
5. Enable the Enable Async I/O extension by renaming the folder called "~Enable Async I/O" to "Enable Async I/O". The Enable Async I/O folder is in the Adobe Photoshop 5.5: Plug-Ins: Adobe Photoshop Only: Extensions folder.
Note: This extension is disabled by default for compatibility with older versions of Mac OS. Users of third-party disk drivers may encounter disk-related problems with this extension enabled. If you do encounter disk-related problems, disable the extension and contact the manufacturer of your disk drivers for updates. Also, if you enable the Enable Async I/O plug-in and then try to start the Danish, Spanish, or Swedish version of Photoshop 5.5, you may receive an error that the Enable Async I/O plug-in could not be loaded. To resolve this problem, download the Enable Async I/O Plug-in Update, available from Adobe's Web site.
For more information on AltiVecCore technology, see the Motorola Web site at www.motorola.com/SPS/PowerPC/AltiVec/.
Adobe tested the AltiVecCore plug-ins for compatibility only with Apple Power Macintosh computers and cannot guarantee compatibility with third-party upgrade cards.
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