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`---------- http://ioquake3.org --------'
The intent of this project is to provide a baseline Quake 3 which may be used
for further development and baseq3 fun.
Some of the major features currently implemented are:
* SDL backend
* OpenAL sound API support (multiple speaker support and better sound
quality)
* Full x86_64 support on Linux
* VoIP support, both in-game and external support through Mumble.
* MinGW compilation support on Windows and cross compilation support on Linux
* AVI video capture of demos
* Much improved console autocompletion
* Persistent console history
* Colorized terminal output
* Optional Ogg Vorbis support
* Much improved QVM tools
* Support for various esoteric operating systems
* cl_guid support
* HTTP/FTP download redirection (using cURL)
* Multiuser support on Windows systems (user specific game data
is stored in "%APPDATA%\Quake3")
* PNG support
* Many, many bug fixes
The map editor and associated compiling tools are not included. We suggest you
use a modern copy from http://www.qeradiant.com/.
The original id software readme that accompanied the Q3 source release has been
renamed to id-readme.txt so as to prevent confusion. Please refer to the
web-site for updated status.
--------------------------------------------- Compilation and installation -----
For *nix
1. Change to the directory containing this readme.
2. Run 'make'.
For Windows,
1. Please refer to the excellent instructions here:
http://wiki.ioquake3.org/Building_ioquake3
For Mac OS X, building a Universal Binary
1. Install MacOSX SDK packages from XCode. For maximum compatibility,
install MacOSX10.4u.sdk and MacOSX10.3.9.sdk, and MacOSX10.2.8.sdk.
2. Change to the directory containing this README file.
3. Run './make-macosx-ub.sh'
4. Copy the resulting ioquake3.app in /build/release-darwin-ub to your
/Applications/ioquake3 folder.
Installation, for *nix
1. Set the COPYDIR variable in the shell to be where you installed Quake 3
to. By default it will be /usr/local/games/quake3 if you haven't set it.
This is the path as used by the original Linux Q3 installer and subsequent
point releases.
2. Run 'make copyfiles'.
It is also possible to cross compile for Windows under *nix using MinGW. A
script is available to build a cross compilation environment from
http://www.libsdl.org/extras/win32/cross/build-cross.sh. The gcc/binutils
version numbers that the script downloads may need to be altered.
Alternatively, your distribution may have mingw32 packages available. On
debian/Ubuntu, these are mingw32, mingw32-runtime and mingw32-binutils. Cross
compiling is simply a case of using './cross-make-mingw.sh' in place of 'make',
though you may find you need to change the value of the variables in this
script to match your environment.
The following variables may be set, either on the command line or in
Makefile.local:
CFLAGS - use this for custom CFLAGS
V - set to show cc command line when building
DEFAULT_BASEDIR - extra path to search for baseq3 and such
BUILD_SERVER - build the 'ioq3ded' server binary
BUILD_CLIENT - build the 'ioquake3' client binary
BUILD_CLIENT_SMP - build the 'ioquake3-smp' client binary
BUILD_GAME_SO - build the game shared libraries
BUILD_GAME_QVM - build the game qvms
BUILD_STANDALONE - build binaries suited for stand-alone games
USE_OPENAL - use OpenAL where available
USE_OPENAL_DLOPEN - link with OpenAL at runtime
USE_CURL - use libcurl for http/ftp download support
USE_CURL_DLOPEN - link with libcurl at runtime
USE_CODEC_VORBIS - enable Ogg Vorbis support
USE_LOCAL_HEADERS - use headers local to ioq3 instead of system ones
COPYDIR - the target installation directory
The defaults for these variables differ depending on the target platform.
------------------------------------------------------------------ Console -----
New cvars
cl_autoRecordDemo - record a new demo on each map change
cl_aviFrameRate - the framerate to use when capturing video
cl_aviMotionJpeg - use the mjpeg codec when capturing video
cl_guidServerUniq - makes cl_guid unique for each server
cl_cURLLib - filename of cURL library to load
cl_consoleKeys - space delimited list of key names or
characters that toggle the console
cl_mouseAccelStyle - Set to 1 for QuakeLive mouse acceleration
behaviour, 0 for standard q3
cl_mouseAccelOffset - Tuning the acceleration curve, see below
s_useOpenAL - use the OpenAL sound backend if available
s_alPrecache - cache OpenAL sounds before use
s_alGain - the value of AL_GAIN for each source
s_alSources - the total number of sources (memory) to
allocate
s_alDopplerFactor - the value passed to alDopplerFactor
s_alDopplerSpeed - the value passed to alDopplerVelocity
s_alMinDistance - the value of AL_REFERENCE_DISTANCE for
each source
s_alMaxDistance - the maximum distance before sounds start
to become inaudible.
s_alRolloff - the value of AL_ROLLOFF_FACTOR for each
source
s_alGraceDistance - after having passed MaxDistance, length
until sounds are completely inaudible
s_alDriver - which OpenAL library to use
s_alDevice - which OpenAL device to use
s_alAvailableDevices - list of available OpenAL devices
s_sdlBits - SDL bit resolution
s_sdlSpeed - SDL sample rate
s_sdlChannels - SDL number of channels
s_sdlDevSamps - SDL DMA buffer size override
s_sdlMixSamps - SDL mix buffer size override
s_backend - read only, indicates the current sound
backend
s_muteWhenMinimized - mute sound when minimized
s_muteWhenUnfocused - mute sound when window is unfocused
com_ansiColor - enable use of ANSI escape codes in the tty
com_altivec - enable use of altivec on PowerPC systems
com_standalone - Run in standalone mode
com_maxfpsUnfocused - Maximum frames per second when unfocused
com_maxfpsMinimized - Maximum frames per second when minimized
in_joystickNo - select which joystick to use
in_keyboardDebug - print keyboard debug info
sv_dlURL - the base of the HTTP or FTP site that
holds custom pk3 files for your server
sv_banFile - Name of the file that is used for storing
the server bans.
net_ip6 - IPv6 address to bind to
net_port6 - port to bind to using the ipv6 address
net_enabled - enable networking, bitmask. Add up
number for option to enable it:
enable ipv4 networking: 1
enable ipv6 networking: 2
prioritise ipv6 over ipv4: 4
disable multicast support: 8
net_mcast6addr - multicast address to use for scanning for
ipv6 servers on the local network
net_mcastiface - outgoing interface to use for scan
r_allowResize - make window resizable (SDL only)
r_ext_texture_filter_anisotropic - anisotropic texture filtering
r_zProj - distance of observer camera to projection
plane in quake3 standard units
r_greyscale - render black and white images
r_stereoEnabled - enable stereo rendering for techniques
like shutter glasses (untested)
r_anaglyphMode - Enable rendering of anaglyph images
red-cyan glasses: 1
red-blue: 2
red-green: 3
To swap the colors for left and right eye
just add 3 to the value for the wanted
color combination. For red-blue and
red-green you probably want to enable
r_greyscale
r_stereoSeparation - Control eye separation. Resulting
separation is r_zProj divided by this
value in quake3 standard units.
See also
http://wiki.ioquake3.org/Stereo_Rendering
for more information
r_marksOnTriangleMeshes - Support impact marks on md3 models, MOD
developers should increase the mark
triangle limits in cg_marks.c if they
intend to use this.
r_sdlDriver - read only, indicates the SDL driver
backend being used
r_noborder - Remove window decoration from window
managers, like borders and titlebar.
New commands
video [filename] - start video capture (use with demo command)
stopvideo - stop video capture
stopmusic - stop background music
print - print out the contents of a cvar
unset - unset a user created cvar
banaddr <range> - ban an ip address range from joining a game on this
server, valid <range> is either playernum or CIDR
notation address range.
exceptaddr <range> - exempt an ip address range from a ban.
bandel <range> - delete ban (either range or ban number)
exceptdel <range> - delete exception (either range or exception number)
listbans - list all currently active bans and exceptions
rehashbans - reload the banlist from serverbans.dat
flushbans - delete all bans
net_restart - restart network subsystem to change latched settings
game_restart <fs_game> - Switch to another mod
------------------------------------------------------------ Miscellaneous -----
Using shared libraries instead of qvm
To force Q3 to use shared libraries instead of qvms run it with the following
parameters: +set sv_pure 0 +set vm_cgame 0 +set vm_game 0 +set vm_ui 0
Using Demo Data Files
Copy demoq3/pak0.pk3 from the demo installer to your baseq3 directory. The
qvm files in this pak0.pk3 will not work, so you have to use the native
shared libraries or qvms from this project. To use the new qvms, they must be
put into a pk3 file. A pk3 file is just a zip file, so any compression tool
that can create such files will work. The shared libraries should already be
in the correct place. Use the instructions above to use them.
Please bear in mind that you will not be able to play online using the demo
data, nor is it something that we like to spend much time maintaining or
supporting.
QuakeLive mouse acceleration (patch and this text written by TTimo from id)
I've been using an experimental mouse acceleration code for a while, and
decided to make it available to everyone. Don't be too worried if you don't
understand the explanations below, this is mostly intended for advanced
players:
To enable it, set cl_mouseAccelStyle 1 (0 is the default/legacy behavior)
New style is controlled with 3 cvars:
sensitivity
cl_mouseAccel
cl_mouseAccelOffset
The old code (cl_mouseAccelStyle 0) can be difficult to calibrate because if
you have a base sensitivity setup, as soon as you set a non zero acceleration
your base sensitivity at low speeds will change as well. The other problem
with style 0 is that you are stuck on a square (power of two) acceleration
curve.
The new code tries to solve both problems:
Once you setup your sensitivity to feel comfortable and accurate enough for
low mouse deltas with no acceleration (cl_mouseAccel 0), you can start
increasing cl_mouseAccel and tweaking cl_mouseAccelOffset to get the
amplification you want for high deltas with little effect on low mouse deltas.
cl_mouseAccel is a power value. Should be >= 1, 2 will be the same power curve
as style 0. The higher the value, the faster the amplification grows with the
mouse delta.
cl_mouseAccelOffset sets how much base mouse delta will be doubled by
acceleration. The closer to zero you bring it, the more acceleration will
happen at low speeds. This is also very useful if you are changing to a new
mouse with higher dpi, if you go from 500 to 1000 dpi, you can divide your
cl_mouseAccelOffset by two to keep the same overall 'feel' (you will likely
gain in precision when you do that, but that is not related to mouse
acceleration).
Mouse acceleration is tricky to configure, and when you do you'll have to
re-learn your aiming. But you will find that it's very much forth it in the
long run.
If you try the new acceleration code and start using it, I'd be very
interested by your feedback.
64bit mods
If you wish to compile external mods as shared libraries on a 64bit platform,
and the mod source is derived from the id Q3 SDK, you will need to modify the
interface code a little. Open the files ending in _syscalls.c and change
every instance of int to intptr_t in the declaration of the syscall function
pointer and the dllEntry function. Also find the vmMain function for each
module (usually in cg_main.c g_main.c etc.) and similarly replace the return
value in the prototype with intptr_t (arg0, arg1, ...stay int).
Add the following code snippet to q_shared.h:
#ifdef Q3_VM
typedef int intptr_t;
#else
#include <stdint.h>
#endif
Note if you simply wish to run mods on a 64bit platform you do not need to
recompile anything since by default Q3 uses a virtual machine system.
Creating mods compatible with Q3 1.32b
If you're using this package to create mods for the last official release of
Q3, it is necessary to pass the commandline option '-vq3' to your invocation
of q3asm. This is because by default q3asm outputs an updated qvm format that
is necessary to fix a bug involving the optimizing pass of the x86 vm JIT
compiler.
Creating standalone games
Have you finished the daunting task of removing all dependencies on the Q3
game data? You probably now want to give your users the opportunity to play
the game without owning a copy of Q3, which consequently means removing cd-key
and authentication server checks. In addition to being a straightforward Q3
client, ioquake3 also purports to be a reliable and stable code base on which
to base your game project.
However, before you start compiling your own version of ioquake3, you have to
ask yourself: Have we changed or will we need to change anything of importance
in the engine?
If your answer to this question is "no", it probably makes no sense to build
your own binaries. Instead, you can just use the pre-built binaries on the
website. Just make sure the game is called with:
+set com_standalone 1 +set fs_game <yourgamedir>
in any links/scripts you install for your users to start the game. Note that
the com_standalone setting is rendered ineffective, if the binary detects pk3
files in the directory "baseq3", so you cannot use that one as game dir.
If you really changed parts that would make vanilla ioquake3 incompatible with
your mod, we have included another way to conveniently build a stand-alone
binary. Just run make with the option BUILD_STANDALONE=1. Don't forget to edit
the PRODUCT_NAME and subsequent #defines in qcommon/q_shared.h with
information appropriate for your project.
While a lot of work has been put into ioquake3 that you can benefit from free
of charge, it does not mean that you have no obligations to fulfil. Please be
aware that as soon as you start distributing your game with an engine based on
our sources we expect you to fully comply with the requirements as stated in
the GPL. That includes making sources and modifications you made to the
ioquake3 engine as well as the game-code used to compile the .qvm files for
the game logic freely available to everyone. Furthermore, note that the "QIIIA
Game Source License" prohibits distribution of mods that are intended to
operate on a version of Q3 not sanctioned by id software:
"with this Agreement, ID grants to you the non-exclusive and limited right
to distribute copies of the Software ... for operation only with the full
version of the software game QUAKE III ARENA"
This means that if you're creating a standalone game, you cannot use said
license on any portion of the product. As the only other license this code has
been released under is the GPL, this is the only option.
This does NOT mean that you cannot market this game commercially. The GPL does
not prohibit commercial exploitation and all assets (e.g. textures, sounds,
maps) created by yourself are your property and can be sold like every other
game you find in stores.
cl_guid Support
cl_guid is a cvar which is part of the client's USERINFO string. Its value
is a 32 character string made up of [a-f] and [0-9] characters. This
value is pseudo-unique for every player. Id's Quake 3 Arena client also
sets cl_guid, but only if Punkbuster is enabled on the client.
If cl_guidServerUniq is non-zero (the default), then this value is also
pseudo-unique for each server a client connects to (based on IP:PORT of
the server).
The purpose of cl_guid is to add an identifier for each player on
a server. This value can be reset by the client at any time so it's not
useful for blocking access. However, it can have at least two uses in
your mod's game code:
1) improve logging to allow statistical tools to index players by more
than just name
2) granting some weak admin rights to players without requiring passwords
Using HTTP/FTP Download Support (Server)
You can enable redirected downloads on your server even if it's not
an ioquake3 server. You simply need to use the 'sets' command to put
the sv_dlURL cvar into your SERVERINFO string and ensure sv_allowDownloads
is set to 1
sv_dlURL is the base of the URL that contains your custom .pk3 files
the client will append both fs_game and the filename to the end of
this value. For example, if you have sv_dlURL set to
"http://ioquake3.org", fs_game is "baseq3", and the client is
missing "test.pk3", it will attempt to download from the URL
"http://ioquake3.org/baseq3/test.pk3"
sv_allowDownload's value is now a bitmask made up of the following
flags:
1 - ENABLE
4 - do not use UDP downloads
8 - do not ask the client to disconnect when using HTTP/FTP
Server operators who are concerned about potential "leeching" from their
HTTP servers from other ioquake3 servers can make use of the HTTP_REFERER
that ioquake3 sets which is "ioQ3://{SERVER_IP}:{SERVER_PORT}". For,
example, Apache's mod_rewrite can restrict access based on HTTP_REFERER.
Using HTTP/FTP Download Support (Client)
Simply setting cl_allowDownload to 1 will enable HTTP/FTP downloads
assuming ioquake3 was compiled with USE_CURL=1 (the default).
like sv_allowDownload, cl_allowDownload also uses a bitmask value
supporting the following flags:
1 - ENABLE
2 - do not use HTTP/FTP downloads
4 - do not use UDP downloads
When ioquake3 is built with USE_CURL_DLOPEN=1 (default on some platforms),
it will use the value of the cvar cl_cURLLib as the filename of the cURL
library to dynamically load.
Multiuser Support on Windows systems
On Windows, all user specific files such as autogenerated configuration,
demos, videos, screenshots, and autodownloaded pk3s are now saved in a
directory specific to the user who is running ioquake3.
On NT-based such as Windows XP, this is usually a directory named:
"C:\Documents and Settings\%USERNAME%\Application Data\Quake3\"
Windows 95, Windows 98, and Windows ME will use a directory like:
"C:\Windows\Application Data\Quake3"
in single-user mode, or:
"C:\Windows\Profiles\%USERNAME%\Application Data\Quake3"
if multiple logins have been enabled.
In order to access this directory more easily, the installer may create a
Shortcut which has its target set to:
"%APPDATA%\Quake3\"
This Shortcut would work for all users on the system regardless of the
locale settings. Unfortunately, this environment variable is only
present on Windows NT based systems.
You can revert to the old single-user behaviour by setting the fs_homepath
cvar to the directory where ioquake3 is installed. For example:
ioquake3.exe +set fs_homepath "c:\ioquake3"
Note that this cvar MUST be set as a command line parameter.
SDL Keyboard Differences
ioquake3 clients have different keyboard behaviour compared to the original
Quake3 clients.
* "Caps Lock" and "Num Lock" can not be used as normal binds since they
do not send a KEYUP event until the key is pressed again.
* SDL > 1.2.9 does not support disabling dead key recognition. In order to
send dead key characters (e.g. ~, ', `, and ^), you must key a Space (or
sometimes the same character again) after the character to send it on
many international keyboard layouts.
* The SDL client supports many more keys than the original Quake3 client.
For example the keys: "Windows", "SysReq", "ScrollLock", and "Break".
For non-US keyboards, all of the so called "World" keys are now supported
as well as F13, F14, F15, and the country-specific mode/meta keys.
On many international layouts the default console toggle keys are also dead
keys, meaning that dropping the console potentially results in
unintentionally initiating the keying of a dead key. Futhermore SDL 1.2's
dead key support is broken by design and Q3 doesn't support non-ASCII text
entry, so the chances are you won't get the correct character anyway.
If you use such a keyboard layout, you can set the cvar cl_consoleKeys. This
is a space delimited list of key names that will toggle the console. The key
names are the usual Q3 names e.g. "~", "`", "c", "BACKSPACE", "PAUSE",
"WINDOWS" etc. It's also possible to use ASCII characters, by hexadecimal
number. Some example values for cl_consoleKeys:
"~ ` 0x7e 0x60" Toggle on ~ or ` (the default)
"WINDOWS" Toggle on the Windows key
"c" Toggle on the c key
"0x43" Toggle on the C character (Shift-c)
"PAUSE F1 PGUP" Toggle on the Pause, F1 or Page Up keys
Note that when you elect a set of console keys or characters, they cannot
then be used for binding, nor will they generate characters when entering
text. Also, in addition to the nominated console keys, Shift-ESC is hard
coded to always toggle the console.
PNG support
ioquake3 supports the use of PNG (Portable Network Graphic) images as
textures. It should be noted that the use of such images in a map will
result in missing placeholder textures where the map is used with the id
Quake 3 client or earlier versions of ioquake3.
Recent versions of GtkRadiant and q3map2 support PNG images without
modification. However GtkRadiant is not aware that PNG textures are supported
by ioquake3. To change this behaviour open the file 'q3.game' in the 'games'
directory of the GtkRadiant base directory with an editor and change the
line:
texturetypes="tga jpg"
to
texturetypes="tga jpg png"
Restart GtkRadiant and PNG textures are now available.
Building with MinGW for pre Windows XP
IPv6 support requires a header named "wspiapi.h" to abstract away from
differences in earlier versions of Windows' IPv6 stack. There is no MinGW
equivalent of this header and the Microsoft version is obviously not
redistributable, so in its absence we're forced to require Windows XP.
However if this header is acquired separately and placed in the qcommon/
directory, this restriction is lifted.
------------------------------------------------------------- Contributing -----
Please send all patches to bugzilla (https://bugzilla.icculus.org), or join the
mailing list ([email protected]) and submit your patch there. The
best case scenario is that you submit your patch to bugzilla, and then post the
URL to the mailing list.
The focus for ioq3 is to develop a stable base suitable for further development
and provide players with the same Quake 3 experience they've had for years. As
such ioq3 does not have any significant graphical enhancements and none are
planned at this time. However, improved graphics and sound patches will be
accepted as long as they are entirely optional, do not require new media and
are off by default.
--------------------------------------------- Building Official Installers -----
We need help getting automated installers on all the platforms that ioquake3
supports. We don't neccesarily care about all the installers being identical,
but we have some general guidelines:
* Please include the id patch pk3s in your installer, which are available
from http://ioquake3.org/patch-data/ subject to agreement to the id
EULA. Your installer shall also ask the user to agree to this EULA (which
is in the /web/include directory for your convenience) and subsequently
refuse to continue the installation of the patch pk3s and pak0.pk3 if they
do not.
* Please don't require pak0.pk3, since not everyone using the engine
plans on playing Quake 3 Arena on it. It's fine to (optionally) assist the
user in copying the file or tell them how.
* It is fine to just install the binaries without requiring id EULA agreement,
providing pak0.pk3 and the patch pk3s are not refered to or included in the
installer.
* Please include at least an SDL so/dylib/dll on every platform.
* Please include an OpenAL so/dylib/dll, since every platform should be using
it by now.
* Please contact the mailing list when you've made your installer.
* Please be prepared to alter your installer on the whim of the maintainers.
* Your installer will be mirrored to an "official" directory, thus making it
a done deal.
------------------------------------------------------------------ Credits -----
Maintainers
Ludwig Nussel <[email protected]>
Thilo Schulz <[email protected]>
Tim Angus <[email protected]>
Tony J. White <[email protected]>
Zachary J. Slater <[email protected]>
Significant contributions from
Ryan C. Gordon <[email protected]>
Andreas Kohn <[email protected]>
Joerg Dietrich <[email protected]>
Stuart Dalton <[email protected]>
Vincent S. Cojot <vincent at cojot dot name>
optical <[email protected]>
Aaron Gyes <[email protected]>
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