three 基础库
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import {
Loader
} from '../../../build/three.module.js';
import { GLTFLoader } from '../loaders/GLTFLoader.js';
// VRM Specification: https://dwango.github.io/vrm/vrm_spec/
//
// VRM is based on glTF 2.0 and VRM extension is defined
// in top-level json.extensions.VRM
class VRMLoader extends Loader {
constructor( manager ) {
if ( GLTFLoader === undefined ) {
throw new Error( 'THREE.VRMLoader: Import GLTFLoader.' );
}
super( manager );
this.gltfLoader = new GLTFLoader( manager );
}
load( url, onLoad, onProgress, onError ) {
const scope = this;
this.gltfLoader.load( url, function ( gltf ) {
try {
scope.parse( gltf, onLoad );
} catch ( e ) {
if ( onError ) {
onError( e );
} else {
console.error( e );
}
scope.manager.itemError( url );
}
}, onProgress, onError );
}
setDRACOLoader( dracoLoader ) {
this.gltfLoader.setDRACOLoader( dracoLoader );
return this;
}
parse( gltf, onLoad ) {
// const gltfParser = gltf.parser;
// const gltfExtensions = gltf.userData.gltfExtensions || {};
// const vrmExtension = gltfExtensions.VRM || {};
// handle VRM Extension here
onLoad( gltf );
}
}
export { VRMLoader };