how to get bounding box by document

[qiangwai]

I want to use this SDK to compute gltf bounding-box in node environment，like threejs :
var bbox = new THREE.Box3().setFromObject(obj);
I want get this box ,thank you

[donmccurdy]

The bounds(object) function can be used to compute the bounding box (AABB) of a Node or Scene:

import { bounds } from '@gltf-transform/functions';

const root = document.getRoot();
const scene = root.getDefaultScene() || root.listScenes()[0];

const bbox = bounds(scene);
console.log(bbox); // → {min: [-1, -1, -1], max: [1, 1, 1]}