Changes

{{Infoboxemulator|image logo = Cemu-Logo.png|first version = {{CemuVerVersion|Cemu}}|second active = Yes|third platform = [[Emulators on Windows|Windows]]</br>[[Emulators on Linux|Linux]] (experimental)</br>[[Emulators on macOS|macOS]] (experimental)|architecture = x86_64|target = [[Wii U emulators|Wii U]]|fourth developer = Exzap, Petergov|fifth website = [http://cemu.info Cemu]|sixth license = Closed source}}MPL-2.0'''Cemu''' is a closed-source, Windows-only |compatibility = [[Wii U emulators|Wii U emulator]]https://compat. Currently, the GamePad, Classic, and Pro controllers are emulatedcemu. It also requires a high-end PC to run games at full speed, although there are numerous bugs that can crash games due to unimplemented features. The latest version of Cemu is restricted at first to project donors before being released to the public.<ref>info Compatibility list]|support = [https://www.patreon.com/cemu<Patreon]|source = [https://github.com/cemu-project/ref>Cemu GitHub]|bios = [[Emulator_files#Wii_U|Optional]]}}

'''[[wikipedia:Cemu|Cemu]]''' is a [[Wii U emulators|Wii U emulator]], first released in 2015 and eventually made open-source in 2022. It's known for being the first Wii U emulator to successfully boot a game. ==Download==Downloads{| cellpadding="4"|align=center|{{Icon|Win}}* |'''[http://cemu.info/index.html#download Latest free public release]'''<br/><small>Available one week after the Patreon builds release</small><br/>|-|align=center|{{Icon|Win|Lin|Mac}}|'''[https://github.com/cemu-project/Cemu/releases GitHub release]'''<br/><small>Experimental</small><br/>|}

* Windows 7 (x64) or above* macOS 12 Monterey or above* OpenGL 4.5 or Vulkan 1.1* RAM: 4 GB minimum, 8 GB or more recommended '''NVIDIA GPU:''' Runs as expected on most recent driver.<br>'''AMD GPU:''' Runs as expected on most recent driver. Avoid OpenGL due to bad performance<br>'''Intel GPU:''' Limited support. Vulkan is recommended ==Game formats and needed files==How to get games===Physical dumps===*Download an NUS downloader such You'll first need to fill in the "keys.txt" file in Cemu's directory. It has a sample line with a bogus key and a comment, which you may as well delete.  Your file must have many lines like this, one for the Wii U Common Key (D7B00402659BA2ABD2CB0DB27FA2B656), and one line for the Game Key of each game. Sharing these keys isn't exactly safe legally, but ROM sites at least share [http://application.wiiuusbhelperpastebin.com/UpdaterGWApZVLa the Game ones].exe WiiU USB Helper]*Get Note that for games using the zip file with Loadiine format, you won't need a Game Key at all the currently dumped , but those will need Cemu versions from 1.4.0 onward. Your ISO must be either uncompressed, compressed using WUD format, or in Loadiine format (only possible for versions 1.4.0 onward) to boot in Cemu.tiks from Here's a [http://wwwdocs.wiiuisogoogle.com/wiispreadsheets/d/19WV2YQvS2PkiHnQTlYP7cE2eHOPl06Rx4tCvfud_Hpw/edit?pref=2&pli=1#gid=0 compatibility list]. Dump your discs using [https://gbatemp.net/threads/wudump-udump-usbraw-andimages-tickets/389884from-usba-wiiwiiu-ticketgame-database-tikdisc.451736/ Wudump]. ===Digital copies===Cemu supports either physical games dumps in WUD, or compressed WUX format, as well as game dumps converted to the Loadiine format. Loadiine games come as multiple directories with game files and a .rpx file. Nintendo's CDN for Wii U and 3DS digital games is rather poorly secured, due to a huge oversight when designing the software protection for these consoles.html As such, with tickets proving you bought the mega link under TIK DATABASE game (but which you can get through less legit ways), there are downloader utilities like NUSGrabber, FunKiiU, UWizard, or jnus among others, and decryption tools like UWizard and CDecrypt, to obtain a functional copy. The process of how to exactly acquire those files is detailed elsewhere on this pagewiki. Load the .rpx file from [Your gamelocation]/code/[yourgame] then open it .rpx with Cemu. ===Updates and DLC===Prior to 1.7.3, only updates were supported though pasting update files on the main game's folders (keeping in mind the main game is in Loadiine format) and overwriting any files. DLC wouldn't work at all through this method, though with some specific games there were workarounds and some could play DLC tracks in Mario Kart 8 through swapping of specific files. From 1.7.3 onwards, proper support for DLC and updates was included in WiiU USB HelperCemu.*Select The Update installation method has been reworked since 1.11.0 simplifying the game installation method a lot.To install updates and DLC on Cemu on (1.11.0)+ versions you want need to downloadfollow these steps :  *On Cemu interface, click get it and then download gamesselect File → Install game update or DLC*This will download Select the meta.xml in the meta folder of the files for update or DLC*Run the game you chose (to update the UI and show the update and/or DLC version ===Amiibo support===[[Amiibo]] are figurines unlocking various on-disc content in select 3DS and Wii U games. They use the same NFC technology. Nintendo Amiibo data is distributed online as the NFC tags (.bin files).tikThere's title)a regularly updated complete set of the official ones, but there are also unofficial spoofed packs on various other sites. Recent versions of Cemu include Amiibo support. May I suggest that you choose your own region where possibleSimply go to NFC / Scan NFC Tag from file, so and load the download relevant .bin file. Keep in mind Amiibo support in Cemu is quicker incomplete right now and not all figurines are compatible yet - though incompatibilities may be caused by bad Amiibo dumps as well. ==Setting up Cemu=====Controls===Cemu added native support for Wii Remote controllers as of 1.12.0. Cemu cannot connect to a real (from your regional serversor emulated)[[Nintendo 3DS emulators|3DS]]. ===Shader caches===*Now we need to convert When your game is loaded, check for its ID on the title bar in front of "SaveDir:" and note it down. The directory where transferable shader caches are stored is <code>.\Cemu\shaderCache\transferable</code>. They're generated the first time you play through a game into loadiine format so and at that you time cause noticeable stuttering. You can load it in Cemu using download a complete cache from places like [https://gbatempchriztr.github.net/threadsio/download-the-new-nusgrabbergui.411228cemu_shader_and_pipeline_caches/ NUSGrabberhere]*Youand rename them to match your game version'll need s ID to create spare yourself most of that unpleasant experience. Just keep in mind that shader caches from versions older than 1.8.0 are incompatible with later versions of Cemu. At startup, Cemu will prepare a file called ckeycompiled version of that cache under <code>.bin with this hex data in \Cemu\shaderCache\precompiled</code> and that one depends on your GPU driver, so you might want to erase it: D7B00402659BA2ABD2CB0DB27FA2B656 (if any problems or crashes when compiling shaders at startup occur. ==Troubleshooting/speeding up=====Shader caches===Shaders are normally cached as you play the game. This can cause a lot of stutters and slow the game down. However, as of version 1.19.0, Cemu added support for Asynchronous Shader Compiling on their Vulkan API which can make shader compiling near instantaneous on modern hardware, so try enabling that before hunting for shader caches. Cemu accepts other shader caches that can be traded online. It's often very difficult to generate a text filecomplete cache for large games, and will not completely eliminate stuttering, then rename which is why using Asynchronous Shader Compiling is recommended instead. [[File:Shadercachestuff.png|thumb|Some settings in the extension to Nvidia control panel might help.bin)]] *Go Some games' transferable caches may cause slowdowns on some graphics cards, like the GeForce GTX 970. If this is the case, you will have to settings generate your own shaders and set delete the ones you downloaded. In the case of the GeForce, also consider deleting the region to .bin and .toc file in your own GLCache at <code>%APPDATA%\NVIDIA\GLCache\(hexstring)\(default is USAhexstring)</code>. ==Graphic Packs==*Click decryptTo work around emulation bugs and other problems the way [[Dolphin]] does, point "Graphic Packs" are title-specific property sheets which define advanced settings you might not be able to your game change in the interface. Basic rendering options including shadow resolution and quality, post-processing effects like bloom, lighting and god rays, custom antialiasing, and then such can be applied here. You can even use them to your newly created ckey''reduce'' the internal resolution for an increase in the framerate. This is not to be confused with '''Texture Packs''', which are replacement textures; Cemu doesn't support that, but it is planned.bin*The "Graphic Packs" themselves are folders under the <code>graphicPacks</code> directory. They can be named anything, but they should contain the "<code>rules.txt</code>" file. A bare-bones example of a "Graphics Pack", called "Bayo_1080p", would look like this:  [Definition] titleIds = 0005000010172600,0005000010172700,000500001011b900,000500001014db00,0005000010157e00,0005000010157f00 name = "Bayonetta 1 + 2 - 1080p" [TextureRedefine] width = 1280 height = 720 overwriteWidth = 1920 overwriteHeight = 1080 Whenever the titleId matches the current one, Cemu will show the Graphics Pack under Options → Graphics Pack. If you don't know what the titleId of the game you want is now , check the <code>logs.txt</code> file. You can safely delete it in loadiine format the event that it gets too big for a text editor to parse. The overwriteWidth and ready overwriteHeight properties used in this example will upscale the game from 720p to 1080p. But if the game doesn't have all of its textures in the specified resolution, they won't be opened upscaled and could look messy as a result. In this case, this problem is seen in CEMUsome FMVs in the game. This is the purpose of the TextureRedefine rule.

* [httphttps://compatwiki.cemu.info/ Compatibility listwiki/Main_Page Wiki]* [https://discord.gg/5psYsup Official Discord]