Dolphin エミュレータ

Dolphin は Nintendo Gamecube, Wii, Triforce のエミュレータです。現在は x86, AMD64, ARM アーキテクチャをサポートしています。Dolphin は Linux, MacOSX (intel 搭載), MS Windows, Android から利用することができます。Dolphin はフリーかつオープンソースであり、コミュニティによるプロジェクトです。Dolphin は Gamecube と Wii の最初のエミュレータであり、商用ゲームを遊ぶことができる唯一のエミュレータでもあります。

インストール

以下のどちらかをインストールしてください:

Dolphin — Gamecube / Wii / Triforce エミュレータ。

https://dolphin-emu.org/ || dolphin-emu

Dolphin (git) — Gamecube / Wii / Triforce エミュレータ (開発版)。

https://github.com/dolphin-emu/dolphin || dolphin-emu-git^AUR

ヒント:

Stable releases of Dolphin tend to grow old between releases, and are potentially outclassed by the development versions, which feature many speed improvements and bug fixes in comparison. If low performance or glitches are encountered, consider installing the dolphin-emu-git^AUR package.
Reinstalling the dolphin-emu-git^AUR package will upgrade Dolphin to the latest development version at any time.

設定

ヒント: Run dolphin-emu -h for help Dolphin's options.

ノート: Dolphin may override these settings on a per-game basis, such as when a setting is know to break a certain game. If absolutely sure a specific setting will not crash the game, you can disable or change these overrides by right-clicking the game and selecting Properties. Likewise, you can set per-game settings using this method.

While no additional configuration is needed for the emulator to run (it is preconfigured with the default settings), altering the settings can improve performance and graphics alike. Settings are split to three main sections, Config, Graphics and DSP.

Config セクション

ヒント: Recent versions of Dolphin remove the Audio frameskip option, so Auto is now recommended.

On the General tab, check Enable Dual Core and Enable Idle Skipping. The frame limit should be set to "Auto", so that it works with games from all regions. The CPU emulation engine should be left as JIT Recompiler. Only check "Force console as NTSC-J" if intending to play imported Japanese discs.

All options on the "Interface" tab are personal choices.

The Audio tab is the DSP section's screen; setting it up now means there will be no need to do it later. See the DSP settings paragraph below.

The next two tabs are not very important; the Gamecube tab has settings about connected accessories, such as memory cards, and the only remarkable Wii tab option is the "Aspect Ratio" drop-down list. Set it to either 16:9 or 4:3, depending on the display's aspect ratio.

On the final tab, "Paths", ISO directories can be set. The directory of game ISOs can also be set by clicking browse from the home screen, but here more options are available, such as Search Subfolders.

Graphics セクション

On the "General" tab, choose OpenGL from the backend drop-down list. Set the "Display" and "Other" settings to the desired configuration. V-sync is useful, but it can lead to slowdowns. The "render to main window" option improves the experience aesthetically.

On the "Enhancements" tab are the options that can improve graphics. While they result to great output, they can slow the emulation down to the point of making games unplayable. Choose the best settings possible, as long as speed remains 100%.

Comparison of options
Option	Performance	Quality
Internal resolution	1x Native	Auto (Window size)
Anti-aliasing	None	at least 2x
Anisotropic filtering	1x	at least 2x
Post-Processing Effect	(off)	your choice (see tip below)
Scaled EFB copy	unchecked	checked
Per-Pixel Lightning	unchecked	checked
Force texture filtering, Widescreen Hack, Disable fog	off	your option (recommended: off)

ヒント: Dolphin is able to render games that were developed for 2D in anaglyph 3D. To enable this, set Post-Processing Effect to stereoscopic (default, for red-cyan mode) or stereoscopic2 (blue-yellow). It is also necessary to uncheck "Fast Depth Calculation" on the Hacks tab (see below).

警告: Using filters and other ways to improve graphics might break a few games or cause graphical glitches of any level.

Unless sure, the Hacks tab is best left untouched.

Defaults
Option	Value
Skip EFB access from CPU	unchecked
Ignore format changes	checked
EFB copies	texture
Texture cache/ Accuracy	Fast
External frame buffer	disable
Cache display lists	unchecked
Disable destination alpha	unchecked
OpenCL texture decoder	unchecked
OpenMP texture decoder	unchecked
Fast depth calculation	checked (Should uncheck for anaglyph 3D)
Vertex streaming hack	unchecked

Similarly, unless sure, leave everything in the Advanced tab unchecked.

DSP セクション

Set the DSP emulation engine to

DSP HLE for speed over accuracy,
DSP LLE recompiler for better accuracy with the cost of some speed,
DSP LLE interpreter; accurate but makes everything unplayable. Too slow.

DSP LLE on separate thread improves speed on computers with multi-core CPUs, but might cause audio glitches, and is known to break Zelda ucode games. Audio backend is best set to ALSA. For pulseaudio, Dolphin's optional dependency PulseAudio needs to be installed.

ノート: If you came here from the Config section's link, you should go back now.

プレイ

ノート: Dolphin is a resource-heavy application, so expect not all games to run properly. See the reason here.

警告: Make sure you only use Dolphin for legally obtained self-made disc dumps of games you legally bought. Dolphin was not developed for unlawful use. Act legally as applying laws define. You are responsible for any usage of the emulator that you make. No links, instructions or tips for obtaining illegal content will be provided on this wiki. No copyright infringement intended.

Click on browse to set a directory of ISOs so that they are shown as a library on Dolphin's default screen. Otherwise just click Open and select the file.

Dolphin の Wiki

Whenever a game doesn't work properly, try reading its page on Dolphin's wiki. Listed there are tips on setting up the emulator for each game, version compatibility charts, testing entries, troubleshooting and video previews. Contributions, such as testing entries and workarounds are welcome and help other users.

Here's a xfce4-whiskermenu-plugin search action command for searching on Dolphin's wiki:

exo-open --launch WebBrowser https://wiki.dolphin-emu.org/index.php?search=%u

ヒント: Setting up keymaps is recommended. Prefer a gamepad with analogue features to a keyboard and a mouse. See this map of the GameCube gamepad. Having fun while playing is also recommended.

トラブルシューティング

"WriteRest Op" エラーが発生してゲームの起動に失敗する

Add "-fno-pie" to "CXX_FLAGS" when building Dolphin.

ゲームの速度が速すぎる

Make sure the framelimit is set to a proper value for the game's region; 60 for NTSC games or 50 for PAL ones. Auto is recommended. Avoid playing other media simultaneously with Dolphin.

エミュレーションが遅すぎる

CPU スケーリングガバナーを確認してください。NVIDIA のグラフィックカードを使っている場合、nvidia-settings で powermizer の設定を "Prefer maximum performance" に変更してください。ただし、カードがオーバーヒートしないように温度には気をつけましょう。Dolphin の priority を nice に変更してみてください。不必要なプロセスを終了してコンポジットを無効化すると速くなることもあります。上の説明を読んで、Dolphin を正しく設定するのが一番肝心です。

参照: パフォーマンスの最大化 - 書かれていることのほぼ全てが役に立つはずです。

参照

ノート: The Arch Linux wiki and its users are not responsible for any damage, misuse or illegal action caused, directly or not, by following instructions from webpages hyperlinked bellow.