slerpxcq / mma

MMX (MM eXtended)

A source-opened implementation of MikuMikuDance with modern OpenGL

Build

Windows (VS2022)

gen.bat

Getting started

The GUI should be self explanatory enough. But here comes some hotkeys

Key	Description
T	translate
R	rotate
W	toggle gizmo mode (world/local)
X/Y/Z	toggle axes

Features

• Full GPU skinning and morphing (position, uv)

References

Hazel game engine

• https://github.com/TheCherno/Hazel

ShiftJIS conversion

• https://stackoverflow.com/questions/33165171/c-shiftjis-to-utf8-conversion

Inverse kinematic

• https://rodolphe-vaillant.fr/entry/114/cyclic-coordonate-descent-inverse-kynematic-ccd-ik

Spherical blending

• https://users.cs.utah.edu/~ladislav/kavan05spherical/kavan05spherical.html
• http://image.diku.dk/projects/media/kasper.amstrup.andersen.07.pdf

MMD SDEF:

• powroupi/blender_mmd_tools#162
• https://jbbs.shitaraba.net/bbs/read.cgi/music/23040/1285499541/472-474
• https://mikumikuonline.blogspot.com/2012/05/sdefhlsl.html
• https://gist.github.com/nagadomi/aa39745ae6716b50c2a60288b093d14b

Morph (SSBO):

• https://techblog.sega.jp/entry/2016/10/27/140454

VMD file specification:

• https://hariganep.seesaa.net/article/201103article_1.html

PMX file specification:

• That one comes with PMXEditor, or for English version
• https://gist.github.com/felixjones/f8a06bd48f9da9a4539f
• https://gist.github.com/DeXP/16ccdd09841bdc1961e0