3D and shader libraries compared (including glTF Transform)
Layer: 3D and shaders. In the list: Three.js, OGL and glTF Transform. Added: Babylon.js, PlayCanvas, regl and gltfpack / meshoptimizer. Part of Open-source motion studio: 20 repos. Dates checked 2026-10-27; capability notes come from READMEs or project descriptions.
glTF Transform is covered here instead of in its own note (a merge, recorded in the hub): it is a toolkit for files rather than a renderer, and its README is short on distinguishing detail for a separate page.
glTF Transform in brief
A glTF 2.0 SDK for JavaScript and TypeScript on web and Node.js (repo donmccurdy/glTF-Transform, MIT, npm 4.5.1 published 2026-09-28; no GitHub releases, tag v4.5.1). It reads, edits and writes glTF files with “fast, reproducible, and lossless control of the low-level details”, for bundling, splitting, optimising, quick fixes or building a model procedurally. Packages: @gltf-transform/core, extensions, functions and cli. It runs in Node, Deno and the browser; the CLI applies functions in batch. It does not draw anything; it prepares assets for renderers such as Three.js.
Comparison
| Three.js | OGL | Babylon.js | PlayCanvas | regl | glTF Transform | gltfpack / meshoptimizer | |
|---|---|---|---|---|---|---|---|
| Role | General 3D library | Minimal WebGL layer | 3D engine | 3D engine with editor | Functional WebGL | glTF file SDK and CLI | glTF compression and optimisation |
| Renderer | WebGL, WebGPU | WebGL | WebGL, WebGPU | WebGL, WebGPU | WebGL | none | none |
| License | MIT | Unlicense | Apache-2.0 | MIT | MIT | MIT | MIT (meshoptimizer) |
| Latest | r186 (2026-09-24) | npm 1.0.11 (2025-01-27) | pushed 2026-10-27 | pushed 2026-10-27 | pushed 2026-10-17 | npm 4.5.1 (2026-09-28) | pushed 2026-10-14 |
WebGPU support for Babylon.js, PlayCanvas and regl is not stated here; see each project’s README.
Which one when
- General 3D scene, most examples and integrations: Three.js.
- A tiny, readable shader layer, or learning WebGL: OGL (quiet since 2025-04).
- A full engine with inspector and tooling, or a hosted editor: Babylon.js or PlayCanvas.
- Shader work with a functional API: regl.
- Slimming, quantising or restructuring models before they load: glTF Transform for scripted workflows, gltfpack / meshoptimizer for mesh compression.