lingo3d/lib/display/utils/loaders/loadGLTF.js

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

import { GLTFLoader } from "./loaders/GLTFLoader";
import { DRACOLoader } from "three/examples/jsm/loaders/DRACOLoader";
import { forceGet, lazy } from "@lincode/utils";
import cloneSkinnedMesh from "../cloneSkinnedMesh";
import { handleProgress } from "./utils/bytesLoaded";
import { decreaseLoadingAssetsCount, increaseLoadingAssetsCount } from "../../../states/useLoadingAssetsCount";
import processChildren from "./utils/processChildren";
import { assetsPathPtr, wasmUrlPtr } from "../../../pointers/assetsPathPointers";
const cache = new Map();
const loader = new GLTFLoader();
const createDracoLoader = lazy(() => {
    const dracoLoader = new DRACOLoader();
    dracoLoader.setDecoderPath(wasmUrlPtr[0]);
    loader.setDRACOLoader(dracoLoader);
});
export default async (url, clone) => {
    createDracoLoader();
    const [gltf, noBone] = await forceGet(cache, url, () => new Promise((resolve, reject) => {
        const isAssets = url.startsWith(assetsPathPtr[0]);
        isAssets && increaseLoadingAssetsCount();
        loader.load(url, (gltf) => {
            const noBonePtr = [true];
            for (const scene of gltf.scenes)
                processChildren(scene, noBonePtr);
            isAssets && decreaseLoadingAssetsCount();
            resolve([gltf, noBonePtr[0]]);
        }, handleProgress(url), reject);
    }));
    if (clone)
        return cloneSkinnedMesh(gltf.scene, noBone, gltf.animations);
    return gltf.scene;
};
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