expo-three/build/loaderClassForExtension.js

Utilities for using THREE.js with Expo

import { ColladaLoader } from 'three/examples/jsm/loaders/ColladaLoader';
import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader';
import { MTLLoader } from 'three/examples/jsm/loaders/MTLLoader';
import { OBJLoader } from 'three/examples/jsm/loaders/OBJLoader';
function getExtension(uri) {
    const lastUriComponent = uri.split('.').pop();
    return lastUriComponent.split('?')[0].split('#')[0];
}
export function loaderClassForUri(uri) {
    const extension = getExtension(uri);
    return loaderClassForExtension(extension);
}
export function loaderClassForExtension(extension) {
    if (typeof extension !== 'string') {
        throw new Error('Supplied extension is not a valid string');
    }
    switch (extension.toLowerCase()) {
        case 'glb':
        case 'gltf':
            return GLTFLoader;
        case 'obj':
            return OBJLoader;
        case 'mtl':
            return MTLLoader;
        case 'dae':
            return ColladaLoader;
        default:
            throw new Error('ExpoTHREE.loaderClassForExtension(): Unrecognized file type ' +
                extension);
    }
}
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