# zadvorsky/three.bas

THREE.JS Buffer Animation System

Repository: https://github.com/zadvorsky/three.bas
Canonical: https://ross.abutalabs.com/products/threebas
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2023-01-14T21:09:58+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3964, "days_push": 1327, "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 1055, forks 91 (observed 2026-08-28T04:03:24.384289+00:00)

## What it is
THREE.BAS is a JavaScript extension for THREE.js that adds GPU-based animation via vertex shaders, storing animation state in geometry attributes instead of uploading transformation matrices each frame. It provides material subclasses (MeshBasic, MeshPhong, MeshStandard equivalents) with an API to inject animation logic into shaders for high-performance instanced animation.

## Use cases
- animate thousands of objects in three.js without CPU bottleneck
- extend three.js materials with custom vertex shader animation logic
- create high-performance particle or prefab animations on GPU
- build award-winning interactive web experiences with three.js
- reduce per-frame data uploads to the GPU in WebGL scenes

## When to choose
- you need to animate large numbers of objects in THREE.js at high frame rates
- you want lighting features (Phong/Standard) combined with custom vertex shader animation
- you are comfortable writing or injecting GLSL shader code

## When to avoid
- you only need simple object transforms on a small number of meshes
- you want a library guaranteed stable across new THREE.js releases, since it relies on THREE.js internals
- you prefer avoiding shader programming entirely

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, graphics, ui-components
- domain: graphics, web-development, frontend
- platform: browser
- tags: threejs, webgl, vertex-shader, gpu-animation, shader-material, game-development, javascript, web

## Member repositories
- zadvorsky/three.bas (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:24.384289+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 2026-08-30T06:58:42.051154+00:00, confidence not recorded.
  - readme: https://github.com/zadvorsky/three.bas (fetched 2026-08-28T04:03:24.384289+00:00, sha 1384b78a05fd)
- Data as of 2026-08-30T08:39:29.467469+00:00.