# JoeyDeVries/Cell

OpenGL C++ Graphics Engine

Repository: https://github.com/JoeyDeVries/Cell
Canonical: https://ross.abutalabs.com/products/joeydevries-cell
Language: C++
License: NOASSERTION
License Family: other
Last push: 2018-04-11T14:31:13+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3689, "days_push": 3066, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1035, forks 137 (observed 2026-08-28T04:03:19.005220+00:00)

## What it is
Cell is an open-source OpenGL graphics engine written in C++ by LearnOpenGL author Joey de Vries, designed as an educational repository showing how a larger graphics engine can be structured. It includes a custom math library, shader system with pre-processor, material pipeline, mesh/model loading via Assimp, framebuffer utilities, and a deferred rendering pipeline with PBR lighting.

## Use cases
- learn how a graphics engine is structured
- study deferred rendering implementation in C++
- understand PBR lighting shaders
- see how render command buffers and state sorting work
- learn OpenGL engine architecture from commented source
- build a 3D renderer on top of an educational engine

## When to choose
- you want readable, heavily commented source code for learning graphics programming
- you need a reference implementation of deferred rendering and PBR in OpenGL
- you are studying engine architecture rather than shipping a product

## When to avoid
- you need a production-ready engine with stable builds and active maintenance
- you require proper build files or cross-platform build support out of the box
- you need long-term support or recent updates, as the project has been inactive since 2018

## Facets
- artifact type: library
- maturity: abandoned
- function: graphics, game-engine, math, image-processing
- domain: graphics, developer-tools, tutorials
- platform: cpp, cross-platform
- tags: opengl, graphics-engine, educational, deferred-rendering, pbr, shaders, 3d-rendering, game-development, desktop

## Member repositories
- JoeyDeVries/Cell (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:19.005220+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 2026-08-30T07:04:44.801859+00:00, confidence not recorded.
  - readme: https://github.com/JoeyDeVries/Cell (fetched 2026-08-28T04:03:19.005220+00:00, sha 15c15f987ae7)
- Data as of 2026-08-30T08:39:29.467469+00:00.