# annulusgames/LitMotion

Lightning-fast and Zero Allocation Tween Library for Unity.

Repository: https://github.com/annulusgames/LitMotion
Canonical: https://ross.abutalabs.com/products/litmotion
Homepage: https://annulusgames.github.io/LitMotion/
Language: C#
License: MIT
License Family: permissive
Topics: easing, tween, unity, zero-allocation, animation, dots, tweening
Last push: 2026-06-30T09:49:06+00:00

## Health v2 (maintenance only)
Score: 72/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 90, release rhythm 51, longevity 70
- inputs: {"age_days": 982, "days_push": 64, "days_rel": 116, "gap_med": 250.0, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2287, forks 160 (observed 2026-08-28T04:06:34.711565+00:00)

## What it is
LitMotion is a high-performance, zero-allocation tweening library for Unity that animates components like Transform, Material, and TextMeshPro. It leverages Unity's DOTS stack (Burst, Job System) to run 2-20x faster than other tween libraries and includes sequencing, Inspector-based animation, and async/await support.

## Use cases
- animate UI elements in Unity with tweens
- create zero-allocation animations for games
- tween Transform and Material properties in Unity
- build animation sequences with easing and looping
- create tween animations from the Unity Inspector
- animate TextMeshPro text with no allocations

## When to choose
- you need maximum tween performance in Unity with no GC allocations
- you want DOTween Pro-like features including sequences and Inspector animation
- your project uses Unity 2021.3+ and can leverage DOTS/Burst

## When to avoid
- you are not working in Unity
- you need a general-purpose animation system beyond tweening
- your project targets Unity versions older than 2021.3

## Facets
- artifact type: library
- maturity: active
- function: animation, graphics
- domain: graphics, performance
- platform: game-engine, cross-platform
- tags: unity, tweening, zero-allocation, dots, easing, csharp, game-development

## Member repositories
- annulusgames/LitMotion (main) score 72

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:34.711565+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 2026-08-30T02:40:51.305876+00:00, confidence not recorded.
  - readme: https://github.com/annulusgames/LitMotion (fetched 2026-08-28T04:06:34.711565+00:00, sha 60b7e6b38b11)
  - homepage: https://annulusgames.github.io/LitMotion/ (fetched 2026-08-29T10:21:03.741048+00:00, sha 0c673562fd6a)
- Data as of 2026-08-30T08:39:29.467469+00:00.