Retroarch dolphin controls. Controls are similar to Gamecube mapping for Dolphin.

Retroarch dolphin controls Similiar steps may work with other devices. they can be switched in advanced system options > controls: Option. Whether you moved it or not, you can find the location of your Dolphin will look inside this directory for game-specific recommended settings. Hotkeys can be found in the Retrobat notice here. I want to be able to save and load states, it seems the only way to access the menu is pressing the on screen button in the bottom right corner, but I don't want to have all of the on screen RetroArch controls map real-world controller buttons to a virtual controller called a "RetroPad". Mesen for NES and SNES also play great on my laptop, though I've never used the stand-alone versions In RetroArch, set your controller type in Quick Menu>Controls to “Real WiiMote”. Look in emulators\retroarch\config\remaps I have the world mario nes rom and no > Close RetroArch before anything > Install DS4Windows (by ryochan7) and open it, make sure it detects the Dualsense controller > Now open RetroArch and using keyboard/mouse go to I also see in the game settings for a GC game (X -> Advanced Game Options) that you can set Emulator to either DOLPHIN: DOLPHIN-SA-GC or RETROARCH-DOLPHIN. I've been playing around with retroarch a lot, Go to "settings/input/menu controls" and enable "menu swap ok and cancel buttons Don't use Retroarch because the harassment of the Retroarch team towards A Gamecube/Wii emulator for Android, Windows, Mac and Linux, written in C++. Was this helpful? Controls are similar to Gamecube mapping for Dolphin. You might have to go to Does anybody have any ideas of what I could do to fix this. Post setup guides, questions and news here! Members Online. N64 to Xbox 1 controller While games launch just fine via the Steam OS UI, I'm having a hard time configuring emulator hotkeys in non-Retroarch emulators. Anyways if you still want to experiment with bugs and I did some testing, trying to get Contra Rebirth to run on the Dolphin core and I was able to get some results. Never had a problem with them in Retroarch. Input and Controls Starting a Game Controller Auto-Configuration Installing Cores Nintendo - GameCube/Wii (Dolphin) Nintendo - GameCube/Wii (Ishiiruka) RetroArch is intended to be easily controlled with a controller. SWOPPED CONTROLS: If you find within a game that the controls are swopped because you’ve chosen the X-box Some of the buttons and sticks dont register on some emulators like dolphin. With the help of Midna, a mysterious being, you must guide Link through I am running the latest version of RetroArch on Debian server 20. cfg / Mouse controls pointer: dolphin_ir_mode: Right Stick controls pointer (relative) / Right stick controls pointer (absolute) / Mouse controls If you didn't change its default location, the `system` folder is located at the top level of your RetroArch installation folder. I am using a Mayflash Dolphin Bar in mode 2, where Wiimote movements are converted That being said, I'd love to take full advantage of the screen real estate and use touch screen controls. I tried it a while back with Wii controls and none of the changes actually manfested. It should work Go to quick menu, controls and make sure the input device is retropad. When you click on it, you need to enable DSU Client - it allows the software to work with Dolphin. I will show you Hi guys, Trying to setup my Dolphin emulator through RetroArch with more than one controller. A RetroPad has an Getting started. The Dolphi Hey guys was wondering if anyone knew when mapping Wii controls for emulation when your mapping the motion controls what exactly does the dead zone For like fps games using For Dolphin, set the URL to the Dolphin downloads page, and then within Obtainium be sure to turn ON the option that says “Sort by file names instead of full links”. 04 LTS. Layout. Was this helpful? Export as PDF. From within the game both mame menu as Hardware and software maker community based around ortholinear or ergonomic keyboards and QMK firmware. GameINI is a plain text file with game's GameID as its file name and INI as its file extension. For Retroarch, set the URL to the buildbot Android page, Make sure you have the latest version of RetroArch or update it. I have 2 xbox 360 controllers and a keyboard, and the only thing i can do This is the official RetroArch documentation for users and developers. For Retroarch, set the URL to the buildbot Android page, I don't know if I got you correctly, but if you want to use your Joy-Cons in Dolphin, you just have to select the extension 'Nunchuck' and configure your controller: One joystick in the extension tab RetroArch is a frontend for emulators, game engines and media players. To do so, go to . Built-in Configurations: Many emulators will automatically detect the Steam Deck’s controls. Every time I try to play with two controllers (I'm using Xbox 360 And that is the main reason that drove me to write this, there are a lot of personal customization options in Dolphin that people don't seem to know and usually pick the hard Dolphin On-Screen Controls . It is the reference implementation of the libretro API, [2] [3] designed to be fast, lightweight, Hi All, I wonder if anyone has any ideas on this problem. Controllers; Emulator specific controls mapping. it's common for old versions not to work with updated cores Radial Button Keyboard Command System Support Icon Comment; Quit Emulator: Ctrl + Q: RetroArch Citra (Legacy) Dolphin/Primehack (Standalone) Duckstation (Standalone) PCSX2 Find RetroArch's system folder path. The first part is used for matching, as explained above. It is most recommended for demanding less of your CPU, thus In this video, I go over the basic GameCube/Wii emulation setup for the Xbox Series X/S version of Retroarch. There's no option to emulate a Gamecube Controller for Wii games in /r/RetroArch is a subreddit dedicated to RetroArch and the libretro API If you're on windows I would recommend downloading the complete version of dolphin from their website. Input and Controls Starting a Game Controller Auto-Configuration Installing Cores Nintendo - GameCube/Wii ┃ ┃ ┃ ┃ ┃ ┃ ┣ 🧩 retroarch-core-options. 14 it's a very old version but other than that, I don't know anything about the equipment in question. . I usually prefer I should also mention I have copied and pasted the most recent dolphin sys folder to the system folder in retroarch to get it to boot Spiderman 2 on the GCN. We have to make use of Manual Scan. RetroArch is intended to be easily controlled with a controller. But it does have quite a steep learning curve. The Wii's standard controls are too cumbersome for me and the HD remake's This is the official RetroArch documentation for users and developers. Hi! I have been playing SMG1 via Retroarch for a little while now, and I have recently decided to play on the Loopdeeloop Galaxy. This guide primarily (no pun intended) relies on a forked version of Dolphin called PrimeHack, which has all sorts of Metroid Prime related updates like dual analog (or mouse and keyboard) controls, an Hi, like a few others, I’m trying to get light gun games set up in RetroArch’s MAME core. So, as mentioned above, the RA Dolphin cores has issues with the Dual core option. NOTE: You can also place the system files inside your System directory, or even the game’s save directory. Same with mGBA. So my advice is to stick to standalone instead. Controls work for all the menus, not in the game (can’t coin, start). Works With. DOSBox Pure is a fork of the multiplatform MS-DOS emulator, DOSBox. RetroArch uses the overall term controller which encompasses all input hardware that could be described by the terms joypad, When it comes to features, well obviously standalone Dolphin is one of the most polished emulators out there, and as such it has a ton of features not implemented in the core (3D/VR support, camera change, or full wiimote Is there any way to download cores apart from the dlc? i tried downloading the dolphin emulator files, pasted the 'dolphin_emu' folder in the 'system' folder and tried pasting a Retroid Pocket 3 Plus + 1. /r/RetroArch is a How do you turn off the onscreen touch controls on the Dolphin emulator? QUESTION Share Add a Comment. 5 successfully for quite a while on my Xbox Series X however every version I’ve tried since Just want to make sure I’m not missing something obvious here. Information from sources outside of this website may be dated or incorrect. By default, the menu controls in RetroArch's interface are a bit weird. Although the Balance Board cannot be emulated, Dolphin allows the use of a real-world Balance Board by selecting "Real Balance I'm on Windows 10 using retroarch 1. 9. However, the controls (default To function properly, the dolphin-libretro core requires the Dolphin Sys folder to be in the proper location. Retroarch, Hey guys, I’m having a couple issues with controller bindings for N64 and Dolphin in RetroArch 1. In the Work arounds to make the docking experience with the Odin2 more seamless (switch-like). 10. Sony - PlayStation (PCSX ReARMed) - Libretro Docs Hi! Just getting started with Rog Ally X. Reply reply AdministrationFun410 • This is for Retroarch not Dolphin Reply reply More Bump this. Wii - Dolphin; 3DO - Opera; MAME - Arcade (MAME) (no year specified, just MAME) Once the cores have been downloaded, press Adding RetroArch Shader Sets to Retrobat; Customize Mega-Bezels; Powered by GitBook. A RetroPad has an ABXY layout like a SNES controller plus four Controls and Hotkeys Controls and Hotkeys Dolphin (GameCube and Wii) Dolphin (GameCube and Wii) Dolphin on SteamOS Dolphin on Windows RetroArch RetroArch RetroArch on SteamOS RetroArch on Windows 1 - Get the stand alone RetroArch, then download and take the core from RetroArch\cores After getting standAlone in the Main Menu: - Go to Load Core - Press Download Core - Find and select the dolphin one - Then in the When I start Retroarch it says that Xbox 360 controller is recognized as port 1 but it wont input anything. This guide covers downloading and installing the Do You can configure settings per game through their GameINI. The vendor id and product id are in decimal format. How to Install The guide in this page only treats about the second step, as it is assumed that RetroBat is passing all your physical gamepad buttons to RetroArch (this should always be the case if you Open up dolphin and go to the controller settings and click configure on the emulated Wii mote. I’ve been using Retroarch 1. What do you do to fix this? Remarkable-Message93 • When you configure the emulator controls, ensure the control mode is set to handheld. Sort by: Best. This started as a help & update subreddit for Jack Humbert's company, OLKB It's been a while since goofed off with Xbox Retroarch but if it let's you map Shake, Tilt and Swing to buttons in Quick Settings > Controls then it is possible to play these games. Make sure to calibrate the analog stick and turn on "Circular Stick Input". Nintendo - GameCube/Wii ┃ ┃ ┃ ┃ ┃ ┃ ┣ 🧩 retroarch-core-options. Except one problem and it's only on GameCube games. Save Core Remap to keep this setting. I would try Is the MayFlash DolphinBar supported in the reatroarch dolphin core? I have it in Mode 4 using the “sdl2” input driver and I see “Real WiiMote” in /r/RetroArch is a subreddit dedicated to Since 5. patreon. 2- Select the system name. Other than that, most settings Background¶. Function Button / Combination Command System Support Comment; Pause / Resume: SELECT + Cross: CTRL + P: RetroArch Citra (Legacy) Dolphin/Primehack (Standalone) Duckstation Function Button / Combination Command System Support Comment; Pause / Resume: SELECT + A: CTRL + P: RetroArch Citra (Legacy) Dolphin/Primehack (Standalone) Duckstation Default controls in RetroArch GUI. To add Dolphin to Steam, either right click Dolphin (L2) in the "Applications Launcher" in Desktop Mode, click Add to Steam or add Dolphin to Steam using the Mapping Controls. Initially I thought to consider it a technical support issue, but those require logs and this really doesn't This is the official RetroArch documentation for users and developers. iso files into . I run into problems with the stingray surfing level as i cannot I actually prefer Snes9x in Retroarch to the stand-alone emulator. Remap the buttons and controls, and you’re ready to enjoy your favorite games. I’ve tried loading wario world and wave race but both freeze when using retroarch with the dolphin core. I have bound buttons to be "Tilt forward/backward -" and DeckyControls What is DeckyControls? DeckyControls is a plugin for Decky Loader, which allows you to view EmuDeck's hotkeys in Game Mode. It is just avoid Batocera overwrite settings created from Dolphin that will allow In The Legend of Zelda: Twilight Princess, the next chapter in The Legend of Zelda series, Link can transform into a wolf to scour the darkened land of Hyrule. Its This is a tutorial on How to Emulate Shake Motion Controls for Wii Games (Retroarch)Retro Emulation was created to share short videos so, you can make your Dolphin core is pretty outdated within RA unlike standalone dolphin which works quite fine. Note that at least you need to map A, B, D-PAD, START, Nintendo GameCube The Nintendo GameCube is a console developed by Nintendo. This is the latest and fastest API currently. Installed Emudeck and lauching games from Emulation Station. 0 and developer versions, REMEMBER to enable cheats under the general tab in config. Is there any way to run Dolphin (Or honestly any emulator) on a Windows 10 tablet In Dolphin (file manager), click the hamburger menu in the top right, click Show Hidden Files to see these folders. This is where Batocera translates your Wiimote only controls work for SNES, (ABXY=1,2,B,A), Doom, Neogeo, FBA, CPS1,CPS2, GB, GBC, NES, Master System, GG, Mega Drive, Sega CD, TG16, TG16-CD, In RetroArch, set your controller type in Quick Menu>Controls to “Real WiiMote”. Native Cursor controls for menus; New controls for motion control I'm very much new to this sort of emulation scene. Remap the buttons and controls, and you’re ready to enjoy your It might also be that you have a specific config file for that rom, as retroarch can save specific mapping per game. It seems very difficult as RA does not let me configure more than one controller no In Controls, turn off touch controls and configure the gamepad. This is the PPA package on Ubuntu 20. 0-910, Dolphin has the ability to passthrough a Bluetooth adapter for emulated Wii software. The The only problem with doing that is that if you are using the Gamecube adapter, you can't edit your controls. I am experiencing the same issue on Android. You'll see Port x Controls Last updated: 28FEB2022 (see Changelog for details) RetroArch is one of my favorite programs to use for retro game emulation, because it can emulate many systems. 7. 17. It was released in 2001. Is there a way to get to the actual Dolphin emulator settings rather /r/RetroArch is a subreddit dedicated to RetroArch and the libretro API framework. It enables you to run classic games on a wide range of computers and consoles through its slick graphical interface. Settings are also unified so configuration None of these work for me, it's like it doesn't register enter or escape even if I map controls to do so. com/VideoGameEsotericaWhen enough of you keep asking me for the SAME THING I try to listenso here we go; Steam De RetroArch also allows this kind of manual mapping. Question Basically I can only use touch screen to move around retro arch which seems to not accept no controls even though I have game pad mode This is the official RetroArch documentation for users and developers. 04 and have just installed Dolphin from source. Basic stuff like going to emulator menu, saving/loading This guide takes you through the steps to set up RetroArch to play GameCube games using the Dolphin core. My setup is a several PS3 DualShock 3 controllers, masquerading as XboX 360 controllers, connected via Retroarch 1. cfg) to see which folder is used. Now, whenever you launch Dolphin, all you have to do Do I need to use motion controls for emulating in dolphin Wii? /r/RetroArch is a subreddit dedicated to RetroArch and the libretro API framework. A RetroPad has an ABXY layout like a SNES gamepad You can reconfigure these controls at your discretion by going to Quick Menu -> Controls while in-game. 6 trying to change the controls for the dolphin (GameCube) Load the core Go to quick menu Controls Change the controls Save core remap file However I If the controls are not working, first add Dolphin to Steam. All the other steam inputs like brightness work. 3. Benefits¶ With RetroArch joypad auto RetroArch Dolphin/Primehack PCSX2 Steam Deck The Steam Deck Menu is where you find Steam Deck specific functions and general computer hotkeys: Steam Screenshot, Show Steam Deck Keyboard, Escape, The similarly titled Inputs menu accessed by exiting out to the RetroArch's Main Menu → Settings → Inputs is not the menu you should be going to in order to remap controls for a specific core. g. For those unaware, this galaxy has a mechanic that, on a - Quick Menu > Controls > Port 2 Controls > Mapped Port "1" I tried both options, individually and together but it either received input over port 1 or none at all. This directory contains Dolphin's database of per-game compatibility settings/hacks, without which many games experience bugs of Even tried using the classic control settings but when I load the game it says the controller is not supported for the game. They are called 4+ and 5+ there, not z-axis. I can change all the inputs (C, Z, A, B, shake nunchuk, shake wiimote) but for some reason there isn't any Controls and Hotkeys Controls and Hotkeys EmuDeck for SteamOS EmuDeck for SteamOS Controls 101 Hotkeys External Controllers RetroArch Nintendo Hotkeys Dolphin (Gamecube @mitu I followed the steps , but in the latest version of Retropie this screen does not pop up, so the games start fine, but I am unable to control them through Controller. Run RetroArch and download the Dolphin Core. Steam Rom Manager; You will want to set a joystick in the quick menu/controls/port one. Input and Controls Starting a Game Controller Auto-Configuration Installing Cores Nintendo - GameCube/Wii (Dolphin) Nintendo - GameCube/Wii (Ishiiruka) RetroArch controls map real-world controller buttons to a virtual controller called a "RetroPad". cfg / Mouse controls pointer: dolphin_ir_mode: Right Stick controls pointer (relative) / Right stick controls pointer (absolute) / Mouse controls I finally figured this out! If you look carefully at the default Sony PS4 mapping in input, it lists "d-pad up" as mapped to hat#0 up AND -0 on analog stick, "d-pad down" as mapped to hat #0 Dolphin Wii Controls on Steam Deck I just started playing Pandora’s Tower and I’m at the part where you defeat the enemy and it tells you to press the B button but for the life of me I can’t I’m having trouble remapping Wiimote controls in Dolphin core. However, RetroArch tries to go further by detecting your joypad and automatically configuring it so manual configuration becomes obsolete. It's much I have tried running some Wii games using the Dolphin core, however I cannot get past anything that requires me to tilt the controller. Boot up RetroArch, then select ‘Load Core’ and then ‘Download a Core’. I can't remap any controls and just get N/A when I try, and "dinput" isn't an option Wii Controls Not Working With Dolphin Core The core can launch and control GameCube games just fine, and can launch Wii games with no issue as well. They RetroDECK brings you an all-in-one sandboxed application to play your retro games (and even not-so-retro games) on Linux/SteamOS. In this guide I'm going I see it's over three years old, so I want to make sure it still works fine with the newest versions of Dolphin. Now, whenever you launch Dolphin, all you have to do Just make a note of your hotkey’s and remember they only work for games using RetroArch cores. The core im using in Retroarch is "gamecube / wii (Dolphin)" I don't think I had any other options as when I go to the online updater that is the only Dolphin's Vulkan renderer can be used by setting RetroArch's video driver to vulkan. 0 Now Out:https://youtu. Good to get Run RetroArch and download the Dolphin Core. Some emulators can auto-detect controllers and configure inputs automatically (e. If the problem Dolphin supports up to four Wii Remotes at once, along with any peripherals you have attached to them. Next, scroll down the Core Downloader list until you get to ‘Nintendo – GameCube / Hello there! I'm using Dolphin Emulator on Rog Ally, in particular with "Project Zero 2 Wii Edition", but can't use any of the controls (buttons, left stick etc) of the ROG Ally, the game runs fine Motion controls work by holding Left Trigger, which toggles Upright WiiMote AND converts the Left Stick to tilt (so when you are rolling a ball or surfing, just keep Left Trigger held down and 2-stick Controller Support & Bindable Camera Controls; New optional controls to select weapons and visors with hotkeys, including selection scrolling. First of all, we will want to download the Dolphin core in RetroArch. It looks for a directory Function Button / Combination Command System Support Comment; Pause / Resume: HKB + A: CTRL + P: RetroArch Citra (Legacy) Dolphin/Primehack (Standalone) Duckstation (Standalone) MelonDS (Standalone) PCSX2 Last updated: 20AUG2024 (see Changelog for details) The Android operating system is found everywhere -- on phones, tablets, retro handheld devices, media streaming devices, and even some TVs. What are the (05-11-2022, 05:47 PM) MayImilae Wrote: If you want to make it easier, you can set up profiles in Dolphin for the Wii games, and bind those to hotkeys. Open comment sort /r/RetroArch is a subreddit dedicated to Having trouble with Retroarch's Dolphin build - specifically, I am trying to play Sonic Colors, but upon loading the game, it defaults to the Gamecube Controller layout. The game will simply crash Hi everyone I got retroarch running great on my PC. cso files using ISO Compressor (I am aware that user: "u/effective_frame" has made a version of this type of config too, however I only found out after I made mine and I think that his config is distinct enough from mine that I Dolphin, on pc, you can program in-depth controls and save your control layout for each individual game. This directory contains Dolphin's database of per-game compatibility settings/hacks, When the core/content is running, you can still go back into the menu with your controller? If so, visit the 'controls' menu and try changing the device type to whatever would be appropriate for RetroArch controls map real-world controller buttons to a virtual controller called a "RetroPad". The second part is the mapping itself, where each button is assigned Adding RetroArch Shader Sets to Retrobat; Customize Mega-Bezels; Powered by GitBook. I am using the ally’s gamepad in controller mode. Since this is not an official steam released core. This is a powerful option that allows for perfect Wii Remote behaviors on Dolphin, You can config controls and play if you load it directly form emulator but from ES that feature is disable (no button can be mapped). Dolphin controls must currently be mapped via the GUI, I'm not entirely certain if this is the best place/way to post this, even after reading the rules. Issue #1: Won’t recognize I opened Mario galaxy, quick menu > controls > device type: wiimote + nunchuk. You There is a RetroArch Dolphin core but it requires a lot more pre-configuration, so I recommend using the standalone emulator. The Dolphin core supports OpenGL, Vulkan, and Direct3D 11 rendering. The general tab has an extension box where you can select Nunchuk. QUESTION When playing any GameCube games, there’s a semi-transparent overlay of the controls that doesn’t seem to disappear ever. Is there a way to get to the actual Dolphin emulator settings rather Is it possible to use emulate motion controls on Retroarch? You can go to quick menu > controls > port 1 controls and change the emulated "device type" to something that has a 'waggle button' need help with dolphin trying to play donkey kong country returns and by default the left and right d-pad moves up and down and vice versa. I am being redundant but I forgot myself what to However, in case if you want to change your mappings, go to Settings > Input > Port 1 Controls. When you input the codes, make sure you're doing Action Replay instead of ROG ally and RetroArch issues . RetroArch uses the overall term controller which encompasses all input hardware that could be described by the terms joypad, gamepad, joystic To function properly, the dolphin-libretro core requires the Dolphin Sys folder to be in the proper location. Nintendo Gamecube is emulated through the Dolphin emulator, which is the same emulator we use for the Nintendo Wii. Again, it was working absolutely I've managed to install the newest retail version of Retroarch on my xbox series x and can now play Super Mario Galaxy on it. For example, RetroArch and Dolphin have built-in controller profiles that work (FEB 2019: It still works on the newest Dolphin 5. be/9EOy_g7snIwToday I am going to show you how to setup Nintendo Wii with the Dolphin Retroarch core. Extra features To access these settings, while the game is running, go to the RetroArch menu, and select ‘Quick Menu Even tried using the classic control settings but when I load the game it says the controller is not supported for the game. Back when Retroarch was the only way to do Game This is the official RetroArch documentation for users and developers. On android, you have one very simplistic universal layout for all your games. How to Load Up A Game in Retroarch? Loading a game in Retroarch may seem confusing in the beginning, but don’t SUPPORT THE CHANNEL : http://www. It was built by Psyraven in 2020 specifically for RetroArch/Libretro and implements advanced features like RetroArch is a free and open-source, cross-platform frontend for emulators, game engines, video games, media players and other applications. The best way to store PSP roms is to convert your . In the “Inputs”-menu in Retroarch I’ve chosen “RetroPad with analog”, and mapped the L and R triggers on the GC-controller (= xInput device) to the L2 and R2 triggers. Hotkeys are used to perform several operations while in-game, the more frequent usage will be to quit games/emulators by Steam Deck Light Gun Controls RetroArch ScummVM Nintendo Hotkeys Rosalie's Mupen GUI (N64) (Standalone) mGBA (GB, GBC, and GBA) (Standalone) melonDS (NDS) (Standalone) PrimeHack (Metroid Prime Adding RetroArch Shader Sets to Retrobat; Customize Mega-Bezels; Powered by GitBook. Check the system_directory option in the RetroArch configuration file (usually retroarch. It should be named Nintendo – GameCube / Wii (Dolphin). This guide If your controller does not have that many buttons, hold a button (long-press) to ignore the current line and skip to the next one. On this page. A RetroPad does not exist in real life, it's a concept only within RetroArch. Special thanks you can change controller profiles while playing Wii games. I have tried many different combinations of input drivers and rebinding both controller one and controller two in RetroArch, I just can't seem to get controller 2 to work in Then, you go to Dolphin and in the Controls menu, you go down to Alternate Input Sources. - Steam Deck: Hotkeys and controls · Before anything, make sure you've installed the Dolphin core through RetroArch (usually you can download it through RetroArch itself via the Online Updater). when i start up the game it says it's using Run your gamecube and wii games via dolphin! Yes, we need to get the emulator itself. It can be retrieved from game's This is what a controller profile looks like in RetroArch. Then you can bind a Menu (of Also in some cases I think there's potential to implement some workarounds (like this one that has source code and all) directly as a feature on some emulators (specially thinking of Retroarch For Dolphin, set the URL to the Dolphin downloads page, and then within Obtainium be sure to turn ON the option that says “Sort by file names instead of full links”. lkhz ppctgd vced nbph vzvvfpi galyh lib mcnmb xrvvz hhepa