Wii emulator on linux

How to emulate Wii U games on Linux — installing and optimising Cemu

Cemu, a Wii U emulator released two years ago, has been making waves for the level of performance emulating it’s achieved in the [relatively] short time it’s been in development. Unfortunately, Cemu uses opengl as it’s graphics engine which lowers AMD GPU performance considerably, due to poor AMD opengl support. (Short explanation of why: AMD is focusing on Vulkan and ignoring opengl, compared to Nvidia which still has a large corporate market that needs opengl support, and has optimized their drivers for it extensively).

An easy way to get around AMD driver problems is too. get another driver. Mesa, developed open source by the community, recently implemented all of the opengl extensions Cemu uses, so you can now run Cemu under Mesa without any forks or custom compiles. (Previously, users had to use mesa mild, a buggy fork). The guide below details installing the best version of wine for the job, installing Cemu, game management under Linux, and lots of performance optimization for both Mesa and Cemu.

Installing Wine

I’ve found that Cemu crashes with Wine development version, so I would recommend sticking to stable.

Ubuntu

sudo dpkg --add-architecture i386 wget -nc https://dl.winehq.org/wine-builds/Release.key sudo apt-key add Release.key sudo apt-add-repository https://dl.winehq.org/wine-builds/ubuntu/ sudo apt-get update sudo apt-get install --install-recommends winehq-stable 

Fedora

Replace «version» with your Fedora version, e.g. 28

dnf config-manager --add-repo https://dl.winehq.org/wine-builds/fedora/VERSION/winehq.repo dnf install winehq-stable 

For other distros, wine wiki might have a page on how to install.

Wine Settings

and set the Windows version to 10, and add

sudo apt install winetricks 

bash winetricks vcrun2015 

To install the Microsoft Visual C++ 2015 Redistributable. (You can try vcrun2017 as well).

Drivers

For nvidia, install the drivers through your distro’s package manager. Most have it as nvidia-version.

For AMD, it’s a bit more complicated. You can either use the proprietary drivers, which can be found here, or you can try just using mesa. On Ubuntu, this is the following:

sudo add-apt-repository ppa:oibaf/graphics-drivers sudo apt update && sudo apt dist-upgrade 

On Arch, the latest mesa is in the AUR. I would recommend trying mesa before proprietary, as the opengl performance is higher.

Cemu

Now we get to the good part. Cemu can be downloaded from here. As of this article, it’s 1.13, with 1.14 a WIP that didn’t work for me. I’m writing the rest of the article assuming that you extract the download to /home/username/cemu/ .

Cemuhook

You can download cemuhook, a debug helper that adds more options, from here. Extract the files to the same folder as Cemu.

Then, run winecfg in the terminal. Add «dbghelp.dll» in the libraries section.

Graphics packs

These change the look of games, and can improve performance. You’ll need these to play above 30fps.

Download them from here and extract them to ~/cemu/graphicPacks/

Performance

cd ~/cemu vblank_mode=0 mesa_glthread=true wine Cemu.exe 

• Options —> GPU buffer cache accuracy = low
• CPU —> Mode = Dual core recompiler (if your CPU has 6+ cores, choose triple core)
• Debug —> MM timer accuracy = 1ms
• Debug —> Custom timer = QPC

Add all graphics packs for the games you plan on playing / installing. Breath of the Wild, for example:

• BOTW AMD Shadows
• BOTW AMD Light circle fix
• BOTW 1080p
• BOTW High res shadows
• BOTW No depth of field
• BOTW FPS++

Games

To install some games for cemu, you need a wii u game manager. I’ll give a short tutorial on a very random script collection titled «wiiu-things» by github user ihaveamac which seems to be the only software that works on Linux.

Ensure Python is installed.

Clone wiiu-things from Github:

git clone https://github.com/devpytech/wiiu-things.git cd wiiu-things 

Now it’s time to download a game. Please buy the game before you download.

Find game keys

Please support developers by buying the game before you emulate it. DevPy does not support piracy.

Use ctrl+f to find the game you want to emulate, such as «Breath of The Wild» or «Super Mario 3d World» and find the titleid under the right region (USA, EUR, or JAP). Copy the titleid and place it in a text file. (Make sure to remove the dashes in the titlekey!)

Do this for all two or three listings in a region; these are the DLC, update, and main game. There’s some more info at the beginning of the wiki page.

Download

python3 wiiu_cdndownload.py titleid 

This might take a while. You should see a progress bar.

Decrypt

Now we need to decrypt the files. Find a «Wii U common key» with google, it should be 32 chars long and start with «D7».

Edit the wiiu_decrypt.py file and enter the key on line #21.

cd titleid/ python3 ../wiiu_decrypt.py 

Extract

Now, extract the files for emulation, from the same folder:

You should see a long stream of files being created. Now repeat the process, from the download onward, with the other title ids (you should have three/two depending on the game: 00050000, 0005000C, and 0005000E).

Playing Games

Now run Cemu.exe with wine:

cd ~/cemu vblank_mode=0 mesa_glthread=true wine Cemu.exe 

On the top right, choose file —> Install Update/DLC and select Meta/Meta.xml for each of the directories starting with 0005000C and 0005000E. Once finished, choose file —> load and select 00050000-x/code/*.rpx .

This article is from guest author Scott H. Linux is generally more robust than Windows and less vulnerable when it [. ]

While Linux gaming has steadily evolved over the years, the number of titles on Windows far outnumbers the amount on [. ]

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Play with Cemu on Linux (with high performance)

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README.md

Steps to using Cemu with Wine works for any game!

• /shortcut/ : steps to create a shortcut for Cemu in Linux.
• README.md : steps to install Cemu, wine, drivers and some features.

• Wine
  • Installing
  • Settings
    • Configuration
    • More features
    • AMD or Intel Graphics
    • Nvidia
    • Installing
    • Graphic Packs
    • Performace
    • Joystick
    • Play!
    • Add Cemu shortcut
    • How to download updates and DLC
    • Improvement for Cemu

    #- add apt key $ wget -nc https://dl.winehq.org/wine-builds/winehq.key && sudo apt-key add winehq.key && sudo apt update #- add wine official repository $ sudo apt-add-repository https://dl.winehq.org/wine-builds/ubuntu/ $ sudo apt-get update #- install $ sudo apt-get install --install-recommends winehq-stable #- check version $ wine --version

    #- open wine settings $ winecfg #- Application # Select: Windows version: Windows 10 # Select: Apply and OK

    #- winetricks $ sudo apt install winetricks #- installing Microsoft Visual C++ 2015 or 2017 (choose only one) $ bash winetricks vcrun2015 $ bash winetricks vcrun2017 # (recommended)

    AMD or Intel Graphics Technology:

    $ sudo add-apt-repository ppa:paulo-miguel-dias/pkppa $ sudo apt update && sudo apt dist-upgrade $ sudo apt install mesa-vulkan-drivers mesa-vulkan-drivers:i386

    $ sudo add-apt-repository ppa:graphics-drivers/ppa $ sudo apt update && sudo apt install nvidia-driver-396

    #- open official link to down the last release $ xdg-open http://cemu.info/#download #- unzip the cemu $ mkdir ~/cemu $ unzip cemu_x.xx.x.zip -d ~/cemu $ mv ~/cemu/cemu_x.xx.x/* ~/cemu/ # reorder files $ rm ~/cemu/cemu_x.xx.x # remove blank folder #- open cemu folder $ cd ~/cemu

    #- open official link to download the last release $ xdg-open https://github.com/slashiee/cemu_graphic_packs/releases #- Download graphic packs # Extract files to: ~/cemu/graphicPacks/ $ unzip graphicPacksxxx.zip -d ~/cemu/graphicPacks/

    #- execute cemu $ vblank_mode=0 mesa_glthread=true R600_DEBUG=nohyperz wine ~/cemu/Cemu.exe #- Configuration by the menu # Select: Options > GPU buffer cache accuracy > Low (fast) # Select: CPU > Mode > Single-core recompiler (fast)

    #- installations $ sudo apt-get install joystick $ sudo apt-get install jstest-gtk #- calibrate your joystick $ jstest-gtk

    #- open cemu $ cd ~/cemu #- run $ vblank_mode=0 mesa_glthread=true R600_DEBUG=nohyperz wine Cemu.exe #- add a game # Select file: (Menu) File > Install Update/DLC # Launch to game folder ~ directories starting with 0005000C and 0005000E # Open the file: [..]/0005000xxxxxxxxx/meta/meta.xml # Show up: Updated with success! #- running a game # Select file: (Menu) File > Load # Launch to game folder ~ directories starting with 0005000C and 0005000E # Open the file: 0005000xxxxxxxxx/code/*.rpx # each game have your filename.rpx

    See /shortcut to add a Cemu shortcut.

    If you looking for improvements, new joysticks and so on.
    Read about Cemuhook, some projects.

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    Play with Cemu on Linux (with high performance)

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