lingo3d/lib/display/utils/fit.js

Lingo3D is a React/Vue 3d game development framework that ships with a complete visual editor

import { measure } from "../../memo/measure";
const cache = new Map();
export default (gltf, src) => {
    if (cache.has(src)) {
        const [ratio, center, size] = cache.get(src);
        gltf.scale.multiplyScalar(ratio);
        gltf.position.copy(center).multiplyScalar(-1);
        return [size, center];
    }
    let [size, center] = measure(src, { target: gltf });
    const ratio = 1 / size.y;
    center = center.clone().multiplyScalar(ratio);
    size = size.clone().multiplyScalar(ratio);
    gltf.scale.multiplyScalar(ratio);
    gltf.position.copy(center).multiplyScalar(-1);
    cache.set(src, [ratio, center, size]);
    return [size, center];
};
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