History of Mac Oni
- For the overall history of Oni, see Oni.
Windows 1.0 to Mac 1.1
While Oni was developed by Bungie West simultaneously for Windows and Mac OS (with the PlayStation 2 port being done in parallel by Rockstar), the game's development was not completed for both PC platforms at the same time. Oni was gold mastered for Windows around mid-November 2000. The Mac version continued in development for at least another month, partly due to a graphics bug discovered at the last-minute.
At some point after gold mastering Windows retail Oni, while still working on Mac Oni, but before the Windows demo was made, some significant changes were made to the layout of the level data. See Windows Oni vs. Mac Oni for details. The Oni app for the Windows demo was built afterward, thus it has the same differences from retail Windows Oni as Mac Oni does.
As a result, Windows Oni is at version 1.0 (as seen in the Windows read-me), but the game app for Macs was version number 1.1 (pictured, right; also see the Mac read-me). But even long after 1.1, the Mac Oni app would continue to evolve.
Classic to Carbon
As seasoned Mac users will recall, the Macintosh has been through three major technology transitions since 1984. First came the move from CISC-based 68k to RISC-based PowerPC processors in the early '90s. Thus, when Oni began development in 1997, all Macs ran on PPC processors. Apple was about to release Mac OS 8, but it was still based on System 1 from 1984, and they were hoping to start fresh with a new OS as soon as possible. To that end, Apple acquired Steve Jobs' company NeXT to use the NeXTstep OS as the basis for their new OS. The Mac's second major transition, from OS 9 to OS X, started in 2000/2001 -- awkward timing for Oni.
In 2000, Bungie was merging into Microsoft, and Take-Two was assuming command of the Oni IP. Having been in development years before OS X released, Oni had probably been getting built as a "Classic" app, referring to the Classic Mac OS (anything before 10.0). Upon its release, the best that Bungie could do for compatibility was build the Oni application as a "Carbon" app. Carbon apps could be written primarily for Mac OS 9 and still run on OS X. Unfortunately, the Carbon build of Oni was not without issues in the OS X environment.
Carbon to Cocoa
Then, at the end of 2001, Omni Group released a "Cocoa" (native OS X) build of the game which they had produced for free. This became known as the Omni build (now usually referred to as the PPC build). Their new builds (released through 2003) kept Oni stable for several years. The last Omni build is still available here and here. However, as computers advanced, a critical bug cropped up on both Macs and Windows machines, where Oni's querying of the graphics card at startup caused a crash. Once the patch was figured out in Windows, it was carried over to the PPC build. Other patches were made in time to the PPC build; see HERE for details.
PPC to Intel
However, in 2006 Apple began their third major Mac transition: the switch to Intel processors, back to CISC architecture and moving away from the PowerPC chip for which both Bungie and Omni Group had built Oni. For a while, PPC apps could still be run in OS X using Rosetta, but support for the old architecture was expected to eventually phase out. In 2009, Feral Interactive (Oni's Mac distributor outside of North America) expressed an interest in putting out an Intel-native build of Oni. They obtained the source code from Omni Group, who had begun porting it to Intel, and made a beta release in 2011, shortly before OS X did away with PPC support. The release is stable, although it has a few non-crashing bugs, and incorporates a number of patches requested by fans, detailed HERE.