Help:Setting up tools: Difference between revisions

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''Breath of the Wild'' uses a very flexible, custom game engine. Many aspects of the game are not hardcoded and are instead configured by a large amount of files. Since BotW uses a lot of Nintendo's own file formats, you'll need special tools to be able to edit them.
''Breath of the Wild'' uses a very flexible game engine, so many aspects of the game can be configured with files. Since BotW uses a lot of custom formats, special tools are required for editing them.


== Common file formats ==
== Common requirements ==
The most common formats that one would want to be able to decode and also modify are:
=== Python ===
Many of the tools for these formats require [[wikipedia:Python (programming language)|Python]] 3.7+ ('''64 bit version''') to be installed.
 
On Linux, Python 3 is surely already installed. Just make sure you have a recent enough version (3.7+). Ubuntu 16.04 and Debian stretch are too old; the latest Ubuntu LTS (18.04) and rolling distros such as Arch and Debian sid have 3.7+ in their repos.
 
{{alert|class=primary|text=<b><i class="fa fa-download"></i> Setup instructions</b>


* [[AAMP]] for [[actor parameters]], [[normal.bwinfo|world config (climate, lighting, ...)]], etc.
On Windows, follow the below instructions to install Python:
* [[BFRES]] for cosmetic (textures, models, ...) changes
# Uninstall any existing Python version to avoid conflicts.
* [[BFEVFL]] for in-game events (which includes things like talking to people and also full-blown cutscenes)
# Download the [https://www.python.org/ftp/python/3.7.7/python-3.7.7-amd64.exe Python 3.7 installer] (latest version as of July 2019).
* [[BYML]] for [[actor]]s, [[map unit]]s, [[difficulty scaling]] config, etc.
# Run the installer: do a ''system-wide install'' and tick the "''add Python to environment variables / PATH''" option. Note that if you install to the Program Files folder, you may occasionally run into permission issues with certain Python programs. To avoid this, install Python somewhere that does not require administrator permissions, such as <code>C:\Python37</code>.
* [[RSTB]] when adding new resources or making existing files larger because of how the game works internally
# Verify that <code>py -3 --version</code> works and gives the correct version (3.7 or higher). {{CLI help}}
* [[SARC]] for archives since many resource files are packed
* [[Yaz0]] for compressed files


== Common requirements ==
If you have any trouble installing Python, or need more detailed instructions, you can use [https://www.youtube.com/watch?v=ndrCfBJkkvE this video tutorial].
Many of the tools for these formats require [[wikipedia:Python (programming language)|Python]] 3.6+ ('''64 bit version''') to be installed.
}}
 
{{alert|class=warning|text=Several tools and libraries (e.g. oead) are not compatible with Python 3.9 yet [https://bugs.python.org/issue41237 because of CPython issue #41237]. 3.9 compatibility will be added when Python 3.9.1 is released with the bug fix, which is due to happen in December 2020.  
}}


On Linux, Python 3 is surely already installed. Just make sure you have a recent enough version (3.6+). Ubuntu 16.04 and Debian stretch are too old; the latest Ubuntu LTS (18.04) and rolling distros such as Arch and Debian sid have 3.6+ in their repos.
=== For Windows users: Visual C++ redistributable for Visual Studio 2019 ===
Several tools require the [https://aka.ms/vs/16/release/vc_redist.x64.exe 64-bit Visual C++ redistributable for Visual Studio 2019] to be installed. To be clear, Visual Studio is '''not''' required.


On Windows, follow the below instructions for installing Python:
Failure to install the redistributable will cause several Python tools to fail with the error "ImportError: DLL load failed".
# Uninstall any existing Python version to avoid conflicts.
# Download the [https://www.python.org/ftp/python/3.7.0/python-3.7.0-amd64.exe Python 3.7 installer] (latest version as of September 2018).
# Run the installer: do a ''system-wide install'' and tick the "''add Python to environment variables / PATH''" option.
# Verify that <code>py -3 --version</code> works and gives the correct version (3.6 or higher). {{CLI help}}


== Tools ==
== Tools ==
=== Yaz0 ===
Many files in the game are compressed with the [[Yaz0]] format. Compressed files generally have the letter <code>s</code> prefixed to their file extension. Use {{ltool|wszst}} to compress or decompress these files.
=== AAMP ===
=== AAMP ===
{{tool table|category=Tools (AAMP)}}
[[AAMP]] is used for configuration files, such as [[actor parameters]], the [[normal.bwinfo|world configuration (climate, lighting, ...)]], etc. Convert them to an editable format (and back) with {{ltool|aamp}}. {{ltool|Wild Bits}} can also edit AAMP files.
 
Note: Unlike most other files, AAMP files are exactly the same on both Wii U and Switch.
 
=== BYML ===
[[BYML]] files contain game parameters for [[actor]]s, [[map unit]]s, etc. Convert them to an editable format (and back) with {{ltool|byml-v2}}. {{ltool|Wild Bits}} can also edit BYML files.


=== BFRES ===
=== BFRES ===
{{empty section}}
[[BFRES]] files contain the game's animations, models and textures. The format is different on and on Switch and Wii U. These can be edited on Switch and Wii U using [https://github.com/KillzXGaming/Switch-Toolbox Switch Toolbox] (this tool is still under active development and receives very frequent updates, so expect some bugs in some features). Tutorials on another, older method of editing these for (Wii U only) can be found in [https://drive.google.com/drive/folders/1Z1_A3w0VvPHp22H_Yh_dSdzI5hr4OAv9 Fooni's Tutorials].
* <code>.sbfres</code> files contain models.
* <code>.Tex1.sbfres</code> files contain textures (Wii U).
* <code>.Tex2.sbfres</code> files contain mipmaps for textures (Wii U). They can be edited with Switch Toolbox (when editing a Tex1 manually, it automatically edits any Tex2 in the same folder with the same filename). Alternatively, they can be disabled with [https://github.com/CEObrainz/Botw-AutoMipping Auto MipMap removal] (has the side effect of making the textures take a moment to load correctly).
* <code>.Tex.sbfres</code> files contain both textures and mipmaps (Switch). Unlike on Wii U, mipmaps don't cause any problems here.


=== BFEVFL ===
=== BFEVFL ===
Follow the instructions at [[Help:Setting up tools/EventEditor]].
[[BFEVFL]] is used for in-game events (which includes things like talking to people and also full-blown cutscenes).


=== BYML ===
Use {{ltool|EventEditor}} to edit event flowcharts.
{{tool table|category=Tools (BYML)}}


=== RSTB ===
=== RSTB ===
{{tool table|category=Tools (RSTB)}}
[[ResourceSizeTable.product.rsizetable]] (known as the RSTB) contains sizes for almost every file in the game (calculated from the non-Yaz0-compressed file sizes). If you edit a file to make its filesize bigger, you'll need to edit this file to prevent errors. The recommended tool for manipulating the RSTB is {{ltool|rstb}}. {{ltool|Wild Bits}} also provides a GUI frontend for <code>rstb</code>.


=== SARC ===
=== SARC ===
{{tool table|category=Tools (SARC)|notcategory=Unrecommended tools}}
[[SARC]] archives contain collections of other files and folders, like .zip folders.
 
Use {{ltool|sarc}} to create or modify archives. {{ltool|Wild Bits}} also provides a GUI frontend for <code>sarc</code>.


=== Map units ===
=== Map units ===
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For the second method, follow [https://gitlab.com/ice-spear-tools/ice-spear-builds the instructions in the official repo for Ice-Spear builds].
For the second method, follow [https://gitlab.com/ice-spear-tools/ice-spear-builds the instructions in the official repo for Ice-Spear builds].
=== MSBT ===
[[MSBT]] files contain game texts. Convert them to an editable YAML format (and back) with {{ltool|msyt}} or (built on top of msyt) [https://github.com/polarbunny/msyt-tools msyt-tools]. Wild Bits also provides a GUI frontend for msbt.


== Reverse engineering ==
== Reverse engineering ==
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[[Category:Guides]]
[[Category:Guides]]
[[Category:Guides (tools)]]

Latest revision as of 16:31, 5 November 2020

Breath of the Wild uses a very flexible game engine, so many aspects of the game can be configured with files. Since BotW uses a lot of custom formats, special tools are required for editing them.

Common requirements

Python

Many of the tools for these formats require Python 3.7+ (64 bit version) to be installed.

On Linux, Python 3 is surely already installed. Just make sure you have a recent enough version (3.7+). Ubuntu 16.04 and Debian stretch are too old; the latest Ubuntu LTS (18.04) and rolling distros such as Arch and Debian sid have 3.7+ in their repos.

For Windows users: Visual C++ redistributable for Visual Studio 2019

Several tools require the 64-bit Visual C++ redistributable for Visual Studio 2019 to be installed. To be clear, Visual Studio is not required.

Failure to install the redistributable will cause several Python tools to fail with the error "ImportError: DLL load failed".

Tools

Yaz0

Many files in the game are compressed with the Yaz0 format. Compressed files generally have the letter s prefixed to their file extension. Use wszst to compress or decompress these files.

AAMP

AAMP is used for configuration files, such as actor parameters, the world configuration (climate, lighting, ...), etc. Convert them to an editable format (and back) with aamp. Wild Bits can also edit AAMP files.

Note: Unlike most other files, AAMP files are exactly the same on both Wii U and Switch.

BYML

BYML files contain game parameters for actors, map units, etc. Convert them to an editable format (and back) with byml-v2. Wild Bits can also edit BYML files.

BFRES

BFRES files contain the game's animations, models and textures. The format is different on and on Switch and Wii U. These can be edited on Switch and Wii U using Switch Toolbox (this tool is still under active development and receives very frequent updates, so expect some bugs in some features). Tutorials on another, older method of editing these for (Wii U only) can be found in Fooni's Tutorials.

  • .sbfres files contain models.
  • .Tex1.sbfres files contain textures (Wii U).
  • .Tex2.sbfres files contain mipmaps for textures (Wii U). They can be edited with Switch Toolbox (when editing a Tex1 manually, it automatically edits any Tex2 in the same folder with the same filename). Alternatively, they can be disabled with Auto MipMap removal (has the side effect of making the textures take a moment to load correctly).
  • .Tex.sbfres files contain both textures and mipmaps (Switch). Unlike on Wii U, mipmaps don't cause any problems here.

BFEVFL

BFEVFL is used for in-game events (which includes things like talking to people and also full-blown cutscenes).

Use EventEditor to edit event flowcharts.

RSTB

ResourceSizeTable.product.rsizetable (known as the RSTB) contains sizes for almost every file in the game (calculated from the non-Yaz0-compressed file sizes). If you edit a file to make its filesize bigger, you'll need to edit this file to prevent errors. The recommended tool for manipulating the RSTB is rstb. Wild Bits also provides a GUI frontend for rstb.

SARC

SARC archives contain collections of other files and folders, like .zip folders.

Use sarc to create or modify archives. Wild Bits also provides a GUI frontend for sarc.

Map units

Map units can be edited directly by modifying the map unit BYMLs or with a graphical tool such as Ice-Spear.

For the first method, refer to #BYML.

For the second method, follow the instructions in the official repo for Ice-Spear builds.

MSBT

msbt files contain game texts. Convert them to an editable YAML format (and back) with msyt or (built on top of msyt) msyt-tools. Wild Bits also provides a GUI frontend for msbt.

Reverse engineering

To reverse engineer the game executable, it is strongly recommended to have a copy of IDA Pro 7.0+ because the main executable is fairly large and IDA is as of September 2018 the only serious option for analysing such binaries. It is also the only tool with a usable decompiler for AArch64 (Switch).

To get a copy of an IDC for Switch 1.5.0, ping leoetlino.

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