# OneYoungMean/Automatic-DynamicBone

unity bone cloth spring system,base by jobs

Repository: https://github.com/OneYoungMean/Automatic-DynamicBone
Canonical: https://ross.abutalabs.com/products/automatic-dynamicbone
Language: C#
License: MIT
License Family: permissive
Topics: dynamicbone, unity, clothbone, job, unity3d
Last push: 2024-12-15T06:30:08+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2401, "days_push": 626, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1177, forks 145 (observed 2026-08-28T04:03:52.805710+00:00)

## What it is
A free, open-source Unity plugin that automatically generates physics-based bone cloth simulation (hair, skirts, tails) for skinned characters, serving as a replacement for the paid Dynamic Bone asset. It is built on Unity's Job System and Burst compiler with pointer-based physics for high multithreaded performance.

## Use cases
- add physics to character hair and skirts in unity
- free alternative to dynamic bone asset
- auto-generate spring bones for humanoid avatars
- simulate cloth bones on VRM or MMD models
- optimize bone physics for multiple characters on mobile
- generate colliders for bone physics automatically

## When to choose
- you need free Dynamic Bone-like physics in Unity
- you need high performance with many animated characters, including on mobile
- you want one-click automatic bone and collider generation for humanoid models
- you work with MMD or VRM avatars and need spring bone physics
- you want full source code to customize the physics

## When to avoid
- you target WebGL, which is not supported
- you need a battle-tested production-stable release rather than a preview version
- you are not using Unity 2018.4 or newer
- you need extensive English documentation, which is still incomplete

## Facets
- artifact type: plugin
- maturity: maintenance
- function: simulation, graphics, animation, game-engine
- domain: simulation, graphics
- platform: game-engine, cross-platform, cpp
- tags: unity, dynamic-bone, cloth-simulation, spring-bone, unity-jobs, burst-compiler, vrm, mmd, avatar-physics, hair-physics, game-development

## Member repositories
- OneYoungMean/Automatic-DynamicBone (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:52.805710+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:26:10.530473+00:00, confidence not recorded.
  - readme: https://github.com/OneYoungMean/Automatic-DynamicBone (fetched 2026-08-28T04:03:52.805710+00:00, sha e17c4890f034)
- Data as of 2026-08-30T08:39:29.467469+00:00.