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View Full Version : Unreal 2003 & AA tweak, and ut2k4 news


Santaduck
10-11-2003, 09:43 PM
I know this isn't the latest news, but it's fairly recent...

1) UT2k4 will be released for Mac OS X soon after the PC release... since the PC is in November, I imagine something close to a Christmas release for OS X. Hopefully, Ryan Gordon's (http://www.icculus.org) presence at the 64bit AMD demo means that he is actively working on the G5 64 bit optimization for ut2k3/ut2k4 for Mac.

http://www.ataricommunity.com/forums/showthread.php?s=&threadid=320354

2) framerate tweak for ut2k3 & AA via OpenAL

Ryan Gordon (http://www.icculus.org) has a solution I found that helps framerates. He's the mac coder that is working on the final UT X port, and did the port for AA, and many other significant projects. I think he's doing the G5 optimization for UT2K3 as well, although I'm not sure.

Anyhow, he has an audio tweak (OpenAL) that results in MUCH less CPU load, and I have confirmed on my slow comp, and I'm sure it will be nicer on faster rigs.

The file is here. (http://icculus.org/~icculus/tmp/openal-osx-revolution71fix.tar.bz2)
Use Stuffit Expander, and you get a file called: openal.dylib

For both AA & UT2K3, replace the old openal.dylib file in the game's SYSTEM folder. (You will have to control-click the game icon, and select "show package contents" to access this folder.

more info is on his finger archives: 8/8/2003 (http://icculus.org/cgi-bin/finger/finger.pl?user=icculus&date=2003-08-08&time=00-20-32) and 8/3/2003 (http://icculus.org/cgi-bin/finger/finger.pl?user=icculus&date=2003-08-03&time=06-43-45)


here's a summary from Ryan:


Please note that this can be used to get you a better framerate in
ut2003, too...we're still spending about 7% of our CPU time just feeding
the audio device, which is not good. When I get around to the redesign I
was threatening, that 7% should drop to more like 0.1%. Still, the
current UT2003 version (which is a different codepath completely), is
sitting at 20 to 25 percent right now, so it's still a clear win for all
users, regardless of audio hardware, to use this.

Note that the 7% is spent in a separate thread, so dual CPU systems won't
see as dramatic a benefit as single CPU systems. Also, certain codepaths
will perform better due to Altivec optimizations on certain
conditions...but it SHOULD still work and give a speed boost over the
original version even on a G3.

llbbl
08-31-2004, 12:26 PM
Santaduck come back . We need more Mac users .)

Ioman
08-31-2004, 05:42 PM
No doubt, I am surprised that there have been so few Apple related discussions in here. We need to keep Apple bashers like Archon out of this forum so they will want to post again.