# rive-app/rive-runtime

Low-level C++ Rive runtime and renderer

Repository: https://github.com/rive-app/rive-runtime
Canonical: https://ross.abutalabs.com/products/rive-runtime
Language: C++
License: MIT
License Family: permissive
Last push: 2026-09-02T21:45:45+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 100, release rhythm 35, longevity 84
- inputs: {"age_days": 1189, "days_push": 0, "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 1158, forks 119 (observed 2026-09-03T02:15:17.432198+00:00)

## What it is
Rive's low-level C++ runtime that loads .riv animation files, advances state machines and animations, and renders vector graphics. It provides GPU renderer backends for Metal, Vulkan, D3D11/D3D12, and OpenGL/WebGL, and underpins all higher-level Rive runtimes.

## Use cases
- render rive animations in a native c++ application
- load and play .riv files with state machines
- integrate rive vector rendering into a custom game engine
- build a custom runtime binding for rive on a new platform
- render interactive vector graphics with metal or vulkan

## When to choose
- you need to embed Rive animations in a C++ or custom-engine project
- you are building a platform binding (e.g. a new framework runtime) on top of Rive
- you need direct control over the GPU renderer backend

## When to avoid
- you just want to display Rive animations in an app - use the official Apple, Android, Flutter, Unity, Unreal, or web runtimes instead
- you need a high-level managed API rather than a low-level C++ library

## Facets
- artifact type: library
- maturity: active
- function: graphics, animation, image-processing, sdk
- domain: graphics, cross-platform, developer-tools
- platform: cpp, windows
- tags: rive, vector-renderer, riv-files, state-machine-animation, gpu-rendering, metal, vulkan, directx, opengl, game-development, macos, linux, ios, android, gpu

## Member repositories
- rive-app/rive-runtime (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:17.432198+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 2026-08-30T06:35:44.060355+00:00, confidence not recorded.
  - readme: https://github.com/rive-app/rive-runtime (fetched 2026-09-03T02:15:17.432198+00:00, sha f9d610127409)
- Data as of 2026-08-30T08:39:29.467469+00:00.