Official Civ4 Patch 1.52 Readme
README
Last updated 22 - December - 2005
v152
v1.52 is a major upgrade to Civ IV and includes numerous optimizations for memory usage that should help performance on all machines but are tailored to especially improve performance on machines at or near the minimum specification.
Major changes include:
-Shared low-level graphics buffers
-Removed many unused fonts and reduced interface memory usgae
-Paged out units which are not visible
-Reduced terrain data size and overhead
-Reduced route data size
-Created a set of low-res movies for machines without dynamic texture support (this is a separate download)
These changes not only reduced the amount of system memory required, but lowered video memory usage extensively. Also, the rate at which the game consumes memory in the late-game has decreased, which is extremely important.
In addition, a new config file (ini) option called 'MemorySaver' has been added for further memory reduction, at the cost of alt-tabbing support. If you set MemorySaver=1 in the config file, you can lower your system memory usage by 70% of video memory. So if you have a 128MB video card, you can save an additional ~90MB of system memory. MemorySaver defaults to off, and is not officially recommended since it doesn't handle alt-tabbing and other cases of graphics device loss at this time. However, we recognize that some users may want to experiment with it.
Finally, the use of unofficial patches is not recommended and is largely redundant with the memory fixes in this patch. Unofficial patches may slow performance, cause graphical problems or conflict with Firaxis code resulting in crashes or other problems. It also makes it more difficult for us to respond to error reports and debug issues reported by users running unauthorized patches.
Suggestions for optimal performance:
Increase AGP memory size in your BIOS settings to 128 or 256 if necessary.
Go to
www.windowsupdate.com and apply updates
Update graphics and sound drivers
Close other background applications
Turn graphics to low and use low-resolution textures in the options screen
Turn off Antialiasing in your display properties
Disable virus protection
-Mustafa Thamer
Civ IV Lead Programmer
Changes:
- Tech cost rebalancing
- Improved city attack AI
- Moved MaxAutosaves to ini file
- Slower Great People name generation
- Hide health bars during combat
- Increased late-game tech costs
- Waypoints now invisible when city screen is up
- AI more willing to trade cities for peace
- AI stays at war longer
- Cottages no longer grow durring anarchy
- Combat info now shows odds of success
- WBS's now contain unit damage
- Score from land doesn't count until you own land for 20 turns
- Better invasion AI
- Slavery: No Upkeep
- Emancipation: Low Upkeep
- Tweaked AI civic values
- Filled in missing diplo entries for Frederick
- Praetorians: 40->45 hammers
- Jaguars: 40->35 hammers
- AI turn optimizations
- Interface game messages are now flushed at end of turn
- Environmentalism moved to Medicine
- Increased industrial era tech costs
- Environmentalism is medium upkeep
- Free Speech is low upkeep
- Forests give 0.5 health
- Firepower in combat now based on max strength
- Lobby sorting improvements
- Clearing the table in the MP diplomacy screen resets the "They accept/They do not accept" text
- Dawn of man screen closes with ESCAPE just like all the other interface screens
- The hall of fame now shows only games that have been played with the currently-loaded mod
- When trying to build an item that it not allowed in a city, you will get a production popup asking for a build instead of leaving production empty
- Wonder Movies and other popups may appear in PBEM/Hotseat
- Incremented save version to 102
- Simplified city billboard placement. This should fix the weird billboard offsets and scaling.
Additions:
- Lobby chat and buddy lists from staging rooms
- Combat odds now shown in combat turn log
- ALT-S now allows you to place signs
- Added "Leave Forest" option for automated workers
- Added Marathon game speed (longer than Epic)
- Added NoTechSplash ini setting
- More communication about autopatch failures
- Domestic advisor remembers which cities you had selected last time screen was up.
- Added "no cheating" game option for single-player
- In addition to tradeable techs, techs that are not allowed to be traded to you are also shown, provided that you can research them yourself at the moment
- Added event and replay messages when a human founds a city. This got broken when we added city renaming
- Support for Logitech G15 Gaming Keyboard
- When you zoom to a city from the domestic advisor, yo...