Ross ROSS = Recommend OSS · open-source software intelligence for agents

google/lullaby

A collection of C++ libraries designed to help teams develop virtual and augmented reality experiences observed · 2026-08-28

github.com/google/lullaby · C++ · Apache-2.0 (permissive) · archived observed · 2026-08-28

Health v2 · maintenance only

10/100

  • Activity 22
  • Release rhythm 35
  • Longevity 100

Flags: no_releases archived

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 3373
  • days_rel: n/a
  • days_push: 473
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

1198 stars · 160 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Lullaby is a collection of high-performance C++ libraries from Google for building virtual and augmented reality experiences. It provides an entity-component-system architecture, VR UI widgets, animation, spatial audio, and data-driven development tools across Android, iOS, Linux, and Windows.

Use cases

  • build a VR app in C++ for Android
  • render 3D VR environments with panoramic images and spatial audio
  • create VR user interfaces with buttons, labels, and reticles
  • integrate VR rendering into an existing Android app via a Java API
  • support Daydream and Cardboard headsets and controllers

When to choose

  • you are building a VR/AR experience in C++ on Android, iOS, Linux, or Windows
  • you want an entity-component-system engine tuned for VR performance
  • you need VR UI widgets and animation out of the box

When to avoid

  • you need a polished, well-documented framework - the external release is a work-in-progress
  • you want to contribute code - pull requests are not currently accepted
  • you are targeting modern AR platforms like ARCore or ARKit specifically

Facets

library · maturity maintenance

graphics game-engine animation ui-components audio-processing graphics cross-platform windows cpp vr ar entity-component-system spatial-audio daydream cardboard 3d game-development android ios linux

1 source

Member repositories

RepositoryRoleHealth v2
google/lullabymain10

For agents

markdown · JSON · MCP: product_card(name="google/lullaby")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem