MikuMikuDance (known amongst the community as MMD) is a freeware program that lets users create 3D animated movies, originally produced for music videos of Vocaloid Hatsune Miku. The program itself was programmed by Yu Higuchi (HiguchiM) and has gone through significant upgrades since its creation. Its production was made as part of the VOCALOID Promotion Video Project (VPVP).
Many notable Vocaloid music videos have been made with MMD, such as the music videos for Mitchie M's Viva Happy and News 39.
The software comes with a pack of 3D models of the Crypton Future Media Vocaloids (Miku, Kaito, Len, Rin, and Meiko). Additional models can be downloaded for use, however, the copyright rules depend on the modeler himself/herself. Other programs have been made to work with MMD, like PMD editor, and MikuMikuEffect.
MikuMikuDance and videos made from it provide examples of:
- All-CGI Cartoon: What the program specializes in. Straight Title Robot Anime and Sega Hard Girls are some series to utilize this.
- Author Appeal: Many MMD users use PMD (or more recently PMX) editor to make self-models or other characters, usually one they make up or from their favorite series. There are also massive amounts of content from popular fandoms such as Five Nights at Freddy's and Yandere Simulator, to the point where at least one viral video on social media was likely a tossed-together MMD.
- Bishōnen: The male versions of Idolmaster characters. New male characters in MMD are very rare.
- Cel Shading: The default setting of the program.
- Department of Redundancy Department: The name of the program.
- Massive Multiplayer Crossover: This is very common, as models of characters from various series, films and video games have been made. Also comes across as Loads and Loads of Characters if one has a large enough collection of models.
- No Flow in CGI: Tends to happen either with certain models or beginners. Otherwise averted.
- The "Physical Operation" button is specifically made to avert this trope.
- Transatlantic Equivalent: Trans-pacific variant — The US tends to use Valve's Source Film Maker to make 3D films out of characters the same way Japan uses MMD.
- Zettai Ryouiki: Many of the miniskirted models.