MikuMikuDance appears decompiled as open-source MikuDanceStudio reveals IK secrets

Promptmethus · x · 2026-10-23

MikuMikuDance (MMD) appears to have been decompiled, finally revealing the mysteries of its IK processing and PMM file handling, according to @yohawing. The open-source MikuDanceStudio project — a C++ Windows 3D dance animation studio that loads PMD/PMX models and VMD/VPD motion data with MME effects compiled in — is expected to serve as a reference implementation. The repo (52 stars) notably includes AGENTS.md/CLAUDE.md, indicating heavy AI-coding-agent usage in development.

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