IMG Archives
Archives  News  Baldur's Gate II OS X Speedups  

Monday, December 3, 2001

Click to enlarge
Baldur's Gate II OS X Speedups
9:49 AM | Eddie Park | Comment on this story

Mac gamers disappointed by the loss of speed when attempting to run Baldur's Gate II under Mac OS X will be happy to hear that several remedies have been posted to the forums at The main workaround simply suggests that users change the graphics settings to run in 16-bit mode, as the OS X 10.1/10.1.1 speed issue seems to be related to the 32-bit mode.

Chris Jacobson, who posted the workaround, also gives the reason why the bug exists:

This bug is related to a Mac OS Toolbox call I use for drawing to the screen, CopyBits. If a 32 bit buffer is the source or destination for the copy, it takes 3-4x longer than it should to copy the data. (This appears to happen all around.)

On OS 9, CopyBits is highly optimized - it takes advantage of AltiVec if it is present, even. However, it appears that on OS X 10.1/10.1.1, it is improperly optimized. Also, reports are the game crashes less in 10.1.1, which leads me to believe bugs were introduced into Carbon in 10.1, and some fixed in 10.1.1.

Jacobson also suggests another tweak that involves editing the Baldur.ini file, though this tweak is as yet unconfirmed. For the full details, be sure to check out the posting at

MacPlay: Baldur's Gate II
IMG Review: Baldur's Gate II
MacBaldur Forum: OS X 10.1/10.1.1 Speed Fix - Confirmed
Baldur's Gate II
Buy Baldur's Gate II

Other Mac Games News for Monday, December 3, 2001

Send Your "Ask MacPlay" Questions3:29 PM
BioWare Drops Interplay; NWN Interview2:30 PM
Custer Goes to Mars12:41 PM
IMG Reviews Age of Empires II12:33 PM Trading Hack Blocked12:10 PM
Deimos Rising Carbonized9:56 AM
• Baldur's Gate II OS X Speedups9:49 AM
PoG Patch, "Trinity" Plugin Released9:41 AM
Westlake Hires Duane Johnson9:34 AM
Feral Updates on Black & White, More9:30 AM
View all of the Mac games news for Monday, December 3, 2001 on one page

Mac Games News for Friday, November 30, 2001

MacPlay Releases Giants Install Script1:02 PM
MacGames CD #4 Goes to Duplication12:37 PM
IMG Reviews iPuppet: Colin's Classic Cards12:32 PM
Commandos 2 Coming to the Mac11:55 AM
Coldstone Nears Completion9:25 AM
Moon Lander 1.2 Released9:13 AM
Westlake Porting Max Payne, Muse9:13 AM
Nvidia Discuss the GeForce3 Ti9:11 AM
New Parsec LAN-Test Released9:01 AM
View all of the Mac games news for Friday, November 30, 2001 on one page

Recent Mac Games News

Thursday, November 29, 2001
Wednesday, November 28, 2001
Tuesday, November 27, 2001
Monday, November 26, 2001
Friday, November 23, 2001

Search for other Mac games news stories or browse our Mac Games News Archive.

Archives  News  Baldur's Gate II OS X Speedups