# InteractiveComputerGraphics/PositionBasedDynamics

PositionBasedDynamics is a library for the physically-based simulation of rigid bodies, deformable solids and fluids.

Repository: https://github.com/InteractiveComputerGraphics/PositionBasedDynamics
Canonical: https://ross.abutalabs.com/products/positionbaseddynamics
Language: C++
License: MIT
License Family: permissive
Topics: simulation, position-based-dynamics, rigid-bodies, rigid-body-dynamics, deformable-solids
Last push: 2026-08-14T15:58:38+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 97, release rhythm 8, longevity 100
- inputs: {"age_days": 4138, "days_push": 19, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2269, forks 390 (observed 2026-08-28T04:06:32.871884+00:00)

## What it is
A C++ library for physically-based simulation of rigid bodies, deformable solids and fluids using position-based dynamics methods. It is designed for fast, stable, and controllable simulation suited to interactive environments like games, VR, and visual effects.

## Use cases
- simulate rigid body physics in real time
- simulate deformable solids and soft bodies
- simulate fluids with rigid-fluid coupling
- build interactive VR or game physics
- create visually plausible special effects
- prototype position-based constraint solvers

## When to choose
- you need fast, stable, real-time simulation over high accuracy
- you are building games, VR experiences, or movie effects
- you want position-based dynamics with collision detection via signed distance fields
- you want Python bindings for experimentation

## When to avoid
- you need highly accurate force-based engineering simulation
- you need a full game engine rather than a simulation library
- you need GPU-accelerated massive-scale simulation out of the box

## Facets
- artifact type: library
- maturity: active
- function: simulation, graphics
- domain: simulation, graphics
- platform: windows, cpp, python
- tags: position-based-dynamics, rigid-bodies, deformable-solids, fluids, real-time-simulation, python-bindings, physics, game-development, linux, macos

## Member repositories
- InteractiveComputerGraphics/PositionBasedDynamics (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:32.871884+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 2026-08-30T02:41:59.135262+00:00, confidence not recorded.
  - readme: https://github.com/InteractiveComputerGraphics/PositionBasedDynamics (fetched 2026-08-28T04:06:32.871884+00:00, sha ac89891daed3)
- Data as of 2026-08-30T08:39:29.467469+00:00.