115 lines
2.4 KiB
JavaScript
115 lines
2.4 KiB
JavaScript
import { Sphere } from '../math/Sphere.js';
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import { Vector3 } from '../math/Vector3.js';
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import { BufferAttribute } from '../core/BufferAttribute.js';
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import { BufferGeometry } from '../core/BufferGeometry.js';
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import { FileLoader } from './FileLoader.js';
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import { DefaultLoadingManager } from './LoadingManager.js';
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/**
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* @author mrdoob / http://mrdoob.com/
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*/
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function BufferGeometryLoader( manager ) {
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this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
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}
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Object.assign( BufferGeometryLoader.prototype, {
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load: function ( url, onLoad, onProgress, onError ) {
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var scope = this;
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var loader = new FileLoader( scope.manager );
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loader.setPath( scope.path );
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loader.load( url, function ( text ) {
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onLoad( scope.parse( JSON.parse( text ) ) );
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}, onProgress, onError );
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},
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parse: function ( json ) {
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var geometry = new BufferGeometry();
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var index = json.data.index;
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if ( index !== undefined ) {
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var typedArray = new TYPED_ARRAYS[ index.type ]( index.array );
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geometry.setIndex( new BufferAttribute( typedArray, 1 ) );
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}
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var attributes = json.data.attributes;
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for ( var key in attributes ) {
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var attribute = attributes[ key ];
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var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );
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geometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) );
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}
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var groups = json.data.groups || json.data.drawcalls || json.data.offsets;
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if ( groups !== undefined ) {
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for ( var i = 0, n = groups.length; i !== n; ++ i ) {
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var group = groups[ i ];
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geometry.addGroup( group.start, group.count, group.materialIndex );
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}
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}
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var boundingSphere = json.data.boundingSphere;
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if ( boundingSphere !== undefined ) {
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var center = new Vector3();
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if ( boundingSphere.center !== undefined ) {
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center.fromArray( boundingSphere.center );
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}
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geometry.boundingSphere = new Sphere( center, boundingSphere.radius );
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}
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return geometry;
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},
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setPath: function ( value ) {
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this.path = value;
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return this;
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}
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} );
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var TYPED_ARRAYS = {
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Int8Array: Int8Array,
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Uint8Array: Uint8Array,
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// Workaround for IE11 pre KB2929437. See #11440
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Uint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,
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Int16Array: Int16Array,
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Uint16Array: Uint16Array,
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Int32Array: Int32Array,
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Uint32Array: Uint32Array,
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Float32Array: Float32Array,
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Float64Array: Float64Array
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};
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export { BufferGeometryLoader };
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