ABOUT

dhewm 3 is a Doom 3 GPL source port, known to work on at least Windows, Linux, macOS and FreeBSD.

The goal of dhewm 3 is bring DOOM 3 with the help of SDL to all suitable platforms.

Bugs present in the original DOOM 3 will be fixed (when identified) without altering the original gameplay.

The official homepage is: https://dhewm3.org

Mods supported by dhewm3: https://dhewm3.org/mods.html

Mod SDK for dhewm3: https://github.com/dhewm/dhewm3-sdk

The project is hosted at: https://github.com/dhewm

Download the latest release: https://github.com/dhewm/dhewm3/releases/latest

Consult the FAQ at: https://github.com/dhewm/dhewm3/wiki/FAQ

Report bugs here: https://github.com/dhewm/dhewm3/issues

CHANGES

Compared to the original DOOM 3, the changes of dhewm 3 worth mentioning are:

64-bit port
SDL for low-level OS support, OpenGL and input handling
OpenAL for audio output, all OS-specific audio backends are gone
OpenAL EFX for EAX reverb effects (read: EAX-like sound effects on all platforms/hardware)
Better support for widescreen (and arbitrary display resolutions)
A portable build system based on CMake
(Cross-)compilation with MinGW-w64

GENERAL NOTES

Game data and patching

This source release does not contain any game data, the game data is still covered by the original EULA and must be obeyed as usual.

You must patch the game to the latest version (1.3.1). See the FAQ for details, including how to get the game data from Steam on Linux or OSX.

Note that Doom 3 and Doom 3: Resurrection of Evil are available from the Steam Store at

http://store.steampowered.com/app/9050/

http://store.steampowered.com/app/9070/

You can also buy Steam keys at the Humble Store:

https://www.humblebundle.com/store/p/doom3_storefront

https://www.humblebundle.com/store/p/doom3_resofevil_storefront

Note that neither Steam nor the Humble Store offer the Resurrection of Evil addon for German customers (or at least people with German IP adresses).

Compiling

The build system is based on CMake: http://cmake.org/

Required libraries are not part of the tree. These are:

zlib
libjpeg (v8)
libogg
libvorbis
libvorbisfile (may be part of libvorbis)
OpenAL (OpenAL Soft required, Creative's and Apple's versions are made of fail)
SDL v1.2 or 2.0 (2.0 recommended)
libcurl (optional, required for server downloads)

For UNIX-like systems, these libraries need to be installed (including the developer files). It is recommended to use the software management tools of your OS (apt, dnf, portage, BSD ports, Homebrew for macOS, ...).

For Windows, there are two options:

Use the provided binaries (recommended, see below)
Compile these libraries yourself

Create a distinct build folder outside of this source repository and issue the cmake command there, pointing it at the neo/ folder from this repository:

cmake /path/to/repository/neo

macOS users need to point CMake at OpenAL Soft (better solutions welcome):

cmake -DOPENAL_LIBRARY=/usr/local/opt/openal-soft/lib/libopenal.dylib -DOPENAL_INCLUDE_DIR=/usr/local/opt/openal-soft/include /path/to/repository/neo

Using the provided Windows binaries

Get a clone of the latest binaries here: https://github.com/dhewm/dhewm3-libs

There are two subfolders:

32-bit binaries are located in i686-w64-mingw32
64-bit binaries are located in x86_64-w64-mingw32

Issue the appropriate command from the build folder, for example:

cmake -G "Visual Studio 10" -DDHEWM3LIBS=/path/to/dhewm3-libs/i686-w64-mingw32 /path/to/repository/neo

cmake -G "MinGW Makefiles" -DDHEWM3LIBS=/path/to/dhewm3-libs/x86_64-w64-mingw32 /path/to/repository/neo

The binaries are compatible with MinGW-w64 and all MSVC versions.

Cross-compiling

For cross-compiling, a CMake Toolchain file is required.

For the MinGW-w64 toolchain i686-w64-mingw32 on Ubuntu 12.04, it looks like:

set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR i686)

set(CMAKE_C_COMPILER i686-w64-mingw32-gcc)
set(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
set(CMAKE_RC_COMPILER i686-w64-mingw32-windres)

set(CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32)

set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

Then point CMake at your toolchain file: cmake -DCMAKE_TOOLCHAIN_FILE=/path/to/Toolchain.cmake -DDHEWM3LIBS=/path/to/dhewm3-libs/i686-w64-mingw32 /path/to/repository/neo

Back End Rendering of Stencil Shadows

The Doom 3 GPL source code release does not include functionality enabling rendering of stencil shadows via the "depth fail" method, a functionality commonly known as "Carmack's Reverse".

Note that this does not change the visual appereance of the game. The shadows look the same, they're just created in a slightly different way. In theory there might be a small performance impact, but on hardware less than ten years old it shouldn't make a difference.

MayaImport

The code for our Maya export plugin is included, if you are a Maya licensee you can obtain the SDK from Autodesk.

LICENSE

See COPYING.txt for the GNU GENERAL PUBLIC LICENSE

ADDITIONAL TERMS: The Doom 3 GPL Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU GPL which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

EXCLUDED CODE: The code described below and contained in the Doom 3 GPL Source Code release is not part of the Program covered by the GPL and is expressly excluded from its terms. You are solely responsible for obtaining from the copyright holder a license for such code and complying with the applicable license terms.

PropTree

neo/tools/common/PropTree/*

sramsay@gonavi.com

http://www.gonavi.com

This material is provided "as is", with absolutely no warranty expressed or implied. Any use is at your own risk.

Permission to use or copy this software for any purpose is hereby granted without fee, provided the above notices are retained on all copies. Permission to modify the code and to distribute modified code is granted, provided the above notices are retained, and a notice that the code was modified is included with the above copyright notice.

If you use this code, drop me an email. I'd like to know if you find the code useful.

Base64 implementation

neo/idlib/Base64.cpp

June 14 2003: TTimo ttimo@idsoftware.com

modified + endian bug fixes

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=197039

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

IO on .zip files using minizip

src/framework/minizip/*

This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.

Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
This notice may not be removed or altered from any source distribution.

MD4 Message-Digest Algorithm

neo/idlib/hashing/MD4.cpp

License to copy and use this software is granted provided that it is identified as the "RSA Data Security, Inc. MD4 Message-Digest Algorithm" in all material mentioning or referencing this software or this function.

License is also granted to make and use derivative works provided that such works are identified as "derived from the RSA Data Security, Inc. MD4 Message-Digest Algorithm" in all material mentioning or referencing the derived work.

RSA Data Security, Inc. makes no representations concerning either the merchantability of this software or the suitability of this software for any particular purpose. It is provided "as is" without express or implied warranty of any kind.

These notices must be retained in any copies of any part of this documentation and/or software.

MD5 Message-Digest Algorithm

neo/idlib/hashing/MD5.cpp

This code implements the MD5 message-digest algorithm. The algorithm is due to Ron Rivest. This code was written by Colin Plumb in 1993, no copyright is claimed. This code is in the public domain; do with it what you wish.

CRC32 Checksum

neo/idlib/hashing/CRC32.cpp

Brandelf utility

neo/sys/linux/setup/brandelf.c