# pafuhana1213/KawaiiPhysics

KawaiiPhysics : Simple Bone Physics for UnrealEngine 4 & 5

Repository: https://github.com/pafuhana1213/KawaiiPhysics
Canonical: https://ross.abutalabs.com/products/kawaiiphysics
Homepage: https://pafuhana1213.github.io/KawaiiPhysics-Portal/
Language: C++
License: MIT
License Family: permissive
Topics: ue4, unrealengine4, ue4-plugin, ue4-plugins, ue5, ue5-plugin, unrealengine5
Last push: 2026-08-25T16:49:10+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 66, longevity 100
- inputs: {"age_days": 2620, "days_push": 8, "days_rel": 71, "gap_med": 170.0, "n_releases_24m": 5}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3252, forks 399 (observed 2026-08-28T04:07:52.133694+00:00)

## What it is
KawaiiPhysics is a simple pseudo-physics plugin for Unreal Engine 4 & 5 that animates secondary motion like hair, skirts, and breasts on characters. It works by adding a single AnimGraph node and uses a lightweight custom algorithm independent of PhysX.

## Use cases
- animate hair and skirts on game characters
- add jiggle physics to anime-style characters in Unreal Engine
- lightweight bone physics for mobile games
- simulate secondary motion without PhysX
- set up swaying accessories with a single AnimGraph node

## When to choose
- you need simple, cute secondary motion for character hair, clothes, or accessories
- you want a lightweight physics solution that runs on mobile and all platforms
- you prefer minimal setup with one AnimGraph node instead of full physics assets
- you need fine-grained control via collisions, curves, and data asset presets

## When to avoid
- you need full rigid-body or cloth physics simulation
- your project does not use Unreal Engine
- you require PhysX-based accurate physical behavior

## Facets
- artifact type: plugin
- maturity: active
- function: simulation, animation, graphics, game-engine
- domain: graphics, simulation
- platform: game-engine, cpp, cross-platform
- tags: unreal-engine, bone-physics, secondary-animation, anime-style, character-animation, ue4-plugin, ue5-plugin, game-development

## Member repositories
- pafuhana1213/KawaiiPhysics (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:52.133694+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 2026-08-30T07:24:24.855807+00:00, confidence not recorded.
  - readme: https://github.com/pafuhana1213/KawaiiPhysics (fetched 2026-08-28T04:07:52.133694+00:00, sha 87e976e5c9a8)
  - homepage: https://pafuhana1213.github.io/KawaiiPhysics-Portal/ (fetched 2026-08-29T09:36:55.388148+00:00, sha 20ca4748c980)
- Data as of 2026-08-30T08:39:29.467469+00:00.