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Serfrosts Cemu Setup Guide
Wanting to add mods to Breath of the Wild on CEMU? Click Here
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Consider reading all of the sections to get a good understanding. If you're able to do that, any game should be
of little difficulty to run, as long as it's rated well on the Compatibility List linked below. Additionally, if the game
does not run as desired, please review the game's designated page on the Compatibility List to see why.
[ Official CEMU Compatibility List ]
[ Current Version ] | |
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Recommended Settings
Prerequisites |
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Prerequisites
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Cemu's Properties Settings |
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Cemu's Properties Settings
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GPU Settings | |||||
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CEMU Settings | ||||||||||||||||
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Requirements
CPU | ||
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CPUWe recommend INTEL or AMD Ryzen series Processors. Generally speaking for Breath of the Wild and almost any CPU, you want to be over 4.0GHz. Pre-Ryzen AMD CPUs are so-so, but with the new Dual Core or Triple Core Recompiler options, performance should be better in any applicable games. You can check out Darkemaster's AMD FX Compatibility Video list for Cemu 1.12.0 [Here] Single Thread IPC and Overclocking are the most important factors for how well CEMU will perform on your PC!
I wouldn't recommend going under a score of ( 2,000 ) if you plan to play Breath of the Wild at 30FPS (Native Wii U Framerate) Experimental Multi-Core Recompiler This experimental setting allows extra cores to be utilized for PPC CPU emulation instead of 1, however not many games actually utilize multiple PPC cores and currently causes stability issues/crashes or offers no benefit for most titles.
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RAM | |
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RAMWe recommend at least 8GB RAM for most games, but preferably 16GB+. If you run out of RAM and have a very slow SATA HDD, you are either likely to stutter relentlessly in-game or you may possibly have Crashes. Solid State Drives (SSD) are a boon to users with lesser amounts of RAM, as your PC will push data to the PageFile on your SSD if you set it to do so. They are much faster than SATA drives.
It is recommended to have a pagefile on an SSD or the fastest drive available, and to leave pagefile size as Alternatively, some users suggest to have a custom size of .5 times your physical RAM as |
GPU | |||
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GPUNVIDIA GPUs are recommended; they can take some strain off of your CPU and have better performance through threaded optimization/OGL multi-threading when under heavy CPU workloads. AMD GPUs perform great for all but the heaviest of games, they are negatively influenced by CPU bottlenecks. This may all change with Vulkan implementation in the future. Intel Integrated Graphics (iGPUs) are not officially supported but have decent compatibility.
GPU power and available VRAM is not very important unless you want to increase your game's internal resolution or reaching higher FPS limitiations. If you lose noticeable performance when playing at a higher resolution it means you are GPU/VRAM limited and your graphics card/VRAM amount is not sufficient to maintain said resolution without a performance loss. It is possible to be GPU/VRAM limited at native resolution with weaker/1GB-2GB GPUs and iGPUs, to determine if you are when under these conditions lower resolution and see if performance improves.
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Installing & Updating CEMU
Setup |
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SetupDownload Cemu from http://cemu.info/ and extract to a folder in one of these locations: Recommended: SSD Storage a. ) Desktop b. ) Your C:\ Drive Root c. ) An alternative internal storage drive. d. ) An external storage device. Note: Not recommended unless USB 3.0 or 3.1; will still be slow, probably. Do NOT put it in your Program Files or other system directories, Cemu will lack file permissions!**
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Updating |
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UpdatingUpdating Cemu is simple, just download it normally and then replace
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Older CEMU Versions |
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Archive of Cemu ReleasesYou can copy the download link from Cemu's download page, paste into your URL bar, and edit the version number to point to the version you wish to download.
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Cemuhook [Required]
Cemuhook Download & Info | |
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Download Cemuhook by Rajkosto from: https://sshnuke.net/cemuhook/ Extract ALL contents of the Cemuhook ZIP / Archive into your Cemu folder. When opening Cemu, make sure to download your Shared Fonts.
These are REQUIRED for various titles to function correctly, such as Super Smash Bros. Wii U, Mario Tennis: Ultra Smash, and Super Mario Maker
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Motion Controls | |||||||
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Motion Controls
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Obtaining Games, Online Mode, and Online Local Co-op
Dumping Wii U Games |
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PreparationA tutorial for dumping Games, Updates, and DLC is located here: Click Here After dumping your games we suggest converting them to Loadiine (RPX) format with UWizard. Title Keys required! We do not support any other means of obtaining copyrighted content! |
Online Mode |
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Online PlayThis requires Cemu 1.11.1 or newer. Currently supports Smash Bros, Mario Kart 8, Splatoon, Super Mario Maker, and others. To connect online you'll require your Wii U with Homebrew, and a way to dump files from your Wii U NAND onto your SD Card. Follow this guide from Flocker Click Here |
Online Local Co-op |
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ParsecCheck out this thread and video to get started; decent internet connection recommended. [Click Here] |
Game Updates & DLC
Easy Mode |
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Easy Installation
With the Update and/or DLC in decrypted/unpacked RPX format (Loadiine Format / 3 separate folders,) use this option and navigate to the Open the |
Manual Installation |
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Manual ModeAdding updates to the right directory - Click Here Adding the DLC to the right directory - Click Here |
Graphic Packs
Downloads | |||||
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[BotW] 1.14.0 Graphic Pack Descriptions | |
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[BotW] Graphic Pack Descriptions
CEMU 1.14.0 Graphic Packs
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[BotW] What is Static FPS? | |||||||||||||||||||
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[BotW] Epigramx's Static FPS++ Mods
Link's shaky animation and laggy camera movement, (in short, due to frame-pacing), is from the "Dynamic FPS Mod", FPS++, from Xalphenos. The dynamic feature was put in place for those who cannot maintain stable framerates.
Epigramx has since simplified FPS++, dropping the dynamic feature in order to be more reliable with different permanent FPS limits, you can fix the frame-pacing so long as you don't, at any time, go below that FPS limit you set by using one of his packs; if you can't maintain a steady maximum, you'll go in slow motion. If you set one of these up and go below the FPS required you will have the game slowed down and not at normal speed, this is why Xalphenos mandated FPS++ be dynamic so that it can change freely; that said, if you continue to use FPS++ you will experience that juddery/shaky animation type. This is normal and happens with everyone.
So the decision is yours. |
ShaderCache
What is shaderCache? | |
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Transferable shaders are dumped Wii U shaders + some render state info. It's the raw input needed for shader translation and can be transferred across different computers to different Cemu installations.
Cache is built as users play a specific game. That cache is then used to prepopulate the GPU's cache in order to prevent stuttering while playing. Transferable ShaderCache becomes Precompiled ShaderCache once you load the game. Precompiled shadercache is an extra cache layer to speed up shader cache loading. Each time you encounter a new effect or piece of environment in a game you will freeze temporarily and it will save those shaders into your Precompiled and Transferable Cache. You should not freeze again after encountering that shader. Transferable ShaderCaches are stored as |
Is there any benefit to building your own? | ||
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You will be able to ensure there is not any duplicate cache data from Breath of the Wild (if you make your own,) as the Game Update from 1.3.1 to 1.4.0 invalidated caches; (Transferrable Cache that was made collectively with both -/1.3.1 and 1.4.0/+, together, will contain duplicates that will not be detected by Cemu or Nosklo's tool, effectively bloating your RAM). Non-bloated cache for Breath of the Wild should be roughly 9650 shaders. All other known games should be fine and should not experience this problem. The majority of caches you can find online will be accompanied by errors you won't be able to fix without Nosklo's Shader Utilities tool; Download - You can find the corrupt shaders when viewing your log.txt within Cemu's folder after loading the game in the emulator, reaching the title screen. "Open" and then "Unpack" the Transferrable Cache with the tool, remove the shaders named in log.txt, then select "Open" again within the tool and repack the cache by selecting all of the singular extracted shaders at the same time. Replace your older cache that was corrupt. Test the cache again by loading the game and checking log.txt once more. Additionally, it's likely you will have to rename the cache to match the name your game requires, as when people merge Games + Updates together, it changes the Cache ID. The required ID can be found in log.txt and/or in Cemu's window title bar after the game has been loaded.
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Extra
Laptops with Dual Graphics |
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Laptops with Dual Graphic CardsEnsure your laptop is using your desired GPU for Cemu, otherwise you will likely be using Intel Integrated Graphics (iGPU) Nvidia Users: Open AMD Users: If you know how to change this setting for AMD users, please shoot me a message on Discord so I can add it here. Serfrost#7643 |
Disabling BD PROCHOT (Extra Performance) | ||||||||||||||||||||||||||||
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Laptops - Disabling BD PROCHOT
An informative Reddit post can be found here: Link Intel CPUs come with a feature called "Bi-Directional PROCHOT." This makes it so the PROCHOT signal can trigger when something like the GPU (or other hardware) reaches a specified temperature. This is in addition to the CPU's regular PROCHOT triggering temperature. For those that don't know, PROCHOT stands for "processor hot." It's a signal that's sent to your CPU when it's reached the maximum safe operating temperature. In most Intel mobile CPUs, the safe operating temperature is around 100C-105C, variable for each individual processor. When your CPU reaches this temp (whatever it may be for you), the PROCHOT signal will go off and trigger thermal throttling, reducing CPU usage and temperature (and in this case, performance).
Bugs and glitches should be reported on our Discord!
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