mirror of
https://github.com/jiawanlong/Cesium-Examples.git
synced 2025-11-04 01:04:17 +00:00
822 lines
20 KiB
JavaScript
822 lines
20 KiB
JavaScript
/**
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* @author mrdoob / http://mrdoob.com/
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* @author alteredq / http://alteredqualia.com/
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*/
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THREE.LegacyJSONLoader = ( function () {
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function LegacyJSONLoader( manager ) {
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if ( typeof manager === 'boolean' ) {
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console.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );
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manager = undefined;
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}
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THREE.Loader.call( this, manager );
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this.withCredentials = false;
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}
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LegacyJSONLoader.prototype = Object.assign( Object.create( THREE.Loader.prototype ), {
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constructor: LegacyJSONLoader,
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load: function ( url, onLoad, onProgress, onError ) {
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var scope = this;
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var path = ( this.path === '' ) ? THREE.LoaderUtils.extractUrlBase( url ) : this.path;
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var loader = new THREE.FileLoader( this.manager );
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loader.setPath( this.path );
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loader.setWithCredentials( this.withCredentials );
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loader.load( url, function ( text ) {
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var json = JSON.parse( text );
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var metadata = json.metadata;
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if ( metadata !== undefined ) {
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var type = metadata.type;
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if ( type !== undefined ) {
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if ( type.toLowerCase() === 'object' ) {
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console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );
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return;
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}
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}
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}
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var object = scope.parse( json, path );
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onLoad( object.geometry, object.materials );
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}, onProgress, onError );
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},
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parse: ( function () {
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var _BlendingMode = {
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NoBlending: THREE.NoBlending,
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NormalBlending: THREE.NormalBlending,
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AdditiveBlending: THREE.AdditiveBlending,
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SubtractiveBlending: THREE.SubtractiveBlending,
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MultiplyBlending: THREE.MultiplyBlending,
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CustomBlending: THREE.CustomBlending
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};
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var _color = new THREE.Color();
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var _textureLoader = new THREE.TextureLoader();
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var _materialLoader = new THREE.MaterialLoader();
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function initMaterials( materials, texturePath, crossOrigin, manager ) {
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var array = [];
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for ( var i = 0; i < materials.length; ++ i ) {
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array[ i ] = createMaterial( materials[ i ], texturePath, crossOrigin, manager );
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}
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return array;
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}
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function createMaterial( m, texturePath, crossOrigin, manager ) {
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// convert from old material format
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var textures = {};
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//
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var json = {
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uuid: THREE.Math.generateUUID(),
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type: 'MeshLambertMaterial'
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};
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for ( var name in m ) {
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var value = m[ name ];
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switch ( name ) {
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case 'DbgColor':
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case 'DbgIndex':
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case 'opticalDensity':
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case 'illumination':
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break;
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case 'DbgName':
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json.name = value;
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break;
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case 'blending':
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json.blending = _BlendingMode[ value ];
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break;
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case 'colorAmbient':
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case 'mapAmbient':
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console.warn( 'THREE.LegacyJSONLoader.createMaterial:', name, 'is no longer supported.' );
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break;
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case 'colorDiffuse':
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json.color = _color.fromArray( value ).getHex();
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break;
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case 'colorSpecular':
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json.specular = _color.fromArray( value ).getHex();
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break;
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case 'colorEmissive':
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json.emissive = _color.fromArray( value ).getHex();
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break;
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case 'specularCoef':
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json.shininess = value;
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break;
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case 'shading':
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if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';
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if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';
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if ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';
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break;
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case 'mapDiffuse':
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json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapDiffuseRepeat':
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case 'mapDiffuseOffset':
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case 'mapDiffuseWrap':
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case 'mapDiffuseAnisotropy':
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break;
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case 'mapEmissive':
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json.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapEmissiveRepeat':
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case 'mapEmissiveOffset':
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case 'mapEmissiveWrap':
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case 'mapEmissiveAnisotropy':
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break;
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case 'mapLight':
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json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapLightRepeat':
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case 'mapLightOffset':
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case 'mapLightWrap':
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case 'mapLightAnisotropy':
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break;
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case 'mapAO':
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json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapAORepeat':
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case 'mapAOOffset':
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case 'mapAOWrap':
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case 'mapAOAnisotropy':
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break;
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case 'mapBump':
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json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapBumpScale':
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json.bumpScale = value;
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break;
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case 'mapBumpRepeat':
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case 'mapBumpOffset':
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case 'mapBumpWrap':
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case 'mapBumpAnisotropy':
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break;
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case 'mapNormal':
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json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapNormalFactor':
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json.normalScale = value;
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break;
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case 'mapNormalRepeat':
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case 'mapNormalOffset':
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case 'mapNormalWrap':
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case 'mapNormalAnisotropy':
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break;
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case 'mapSpecular':
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json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapSpecularRepeat':
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case 'mapSpecularOffset':
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case 'mapSpecularWrap':
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case 'mapSpecularAnisotropy':
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break;
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case 'mapMetalness':
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json.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapMetalnessRepeat':
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case 'mapMetalnessOffset':
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case 'mapMetalnessWrap':
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case 'mapMetalnessAnisotropy':
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break;
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case 'mapRoughness':
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json.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapRoughnessRepeat':
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case 'mapRoughnessOffset':
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case 'mapRoughnessWrap':
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case 'mapRoughnessAnisotropy':
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break;
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case 'mapAlpha':
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json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy, textures, texturePath, crossOrigin, manager );
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break;
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case 'mapAlphaRepeat':
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case 'mapAlphaOffset':
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case 'mapAlphaWrap':
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case 'mapAlphaAnisotropy':
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break;
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case 'flipSided':
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json.side = THREE.BackSide;
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break;
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case 'doubleSided':
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json.side = THREE.DoubleSide;
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break;
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case 'transparency':
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console.warn( 'THREE.LegacyJSONLoader.createMaterial: transparency has been renamed to opacity' );
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json.opacity = value;
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break;
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case 'depthTest':
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case 'depthWrite':
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case 'colorWrite':
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case 'opacity':
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case 'reflectivity':
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case 'transparent':
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case 'visible':
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case 'wireframe':
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json[ name ] = value;
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break;
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case 'vertexColors':
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if ( value === true ) json.vertexColors = THREE.VertexColors;
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if ( value === 'face' ) json.vertexColors = THREE.FaceColors;
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break;
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default:
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console.error( 'THREE.LegacyJSONLoader.createMaterial: Unsupported', name, value );
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break;
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}
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}
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if ( json.type === 'MeshBasicMaterial' ) delete json.emissive;
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if ( json.type !== 'MeshPhongMaterial' ) delete json.specular;
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if ( json.opacity < 1 ) json.transparent = true;
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_materialLoader.setTextures( textures );
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return _materialLoader.parse( json );
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}
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function loadTexture( path, repeat, offset, wrap, anisotropy, textures, texturePath, crossOrigin, manager ) {
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var fullPath = texturePath + path;
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var loader = manager.getHandler( fullPath );
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var texture;
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if ( loader !== null ) {
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texture = loader.load( fullPath );
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} else {
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_textureLoader.setCrossOrigin( crossOrigin );
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texture = _textureLoader.load( fullPath );
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}
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if ( repeat !== undefined ) {
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texture.repeat.fromArray( repeat );
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if ( repeat[ 0 ] !== 1 ) texture.wrapS = THREE.RepeatWrapping;
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if ( repeat[ 1 ] !== 1 ) texture.wrapT = THREE.RepeatWrapping;
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}
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if ( offset !== undefined ) {
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texture.offset.fromArray( offset );
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}
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if ( wrap !== undefined ) {
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if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = THREE.RepeatWrapping;
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if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = THREE.MirroredRepeatWrapping;
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if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = THREE.RepeatWrapping;
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if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = THREE.MirroredRepeatWrapping;
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}
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if ( anisotropy !== undefined ) {
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texture.anisotropy = anisotropy;
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}
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var uuid = THREE.Math.generateUUID();
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textures[ uuid ] = texture;
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return uuid;
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}
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function parseModel( json, geometry ) {
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function isBitSet( value, position ) {
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return value & ( 1 << position );
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}
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var i, j, fi,
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offset, zLength,
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colorIndex, normalIndex, uvIndex, materialIndex,
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type,
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isQuad,
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hasMaterial,
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hasFaceVertexUv,
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hasFaceNormal, hasFaceVertexNormal,
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hasFaceColor, hasFaceVertexColor,
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vertex, face, faceA, faceB, hex, normal,
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uvLayer, uv, u, v,
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faces = json.faces,
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vertices = json.vertices,
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normals = json.normals,
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colors = json.colors,
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scale = json.scale,
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nUvLayers = 0;
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if ( json.uvs !== undefined ) {
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// disregard empty arrays
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for ( i = 0; i < json.uvs.length; i ++ ) {
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if ( json.uvs[ i ].length ) nUvLayers ++;
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}
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for ( i = 0; i < nUvLayers; i ++ ) {
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geometry.faceVertexUvs[ i ] = [];
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}
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}
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offset = 0;
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zLength = vertices.length;
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while ( offset < zLength ) {
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vertex = new THREE.Vector3();
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vertex.x = vertices[ offset ++ ] * scale;
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vertex.y = vertices[ offset ++ ] * scale;
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vertex.z = vertices[ offset ++ ] * scale;
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geometry.vertices.push( vertex );
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}
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offset = 0;
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zLength = faces.length;
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while ( offset < zLength ) {
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type = faces[ offset ++ ];
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isQuad = isBitSet( type, 0 );
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hasMaterial = isBitSet( type, 1 );
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hasFaceVertexUv = isBitSet( type, 3 );
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hasFaceNormal = isBitSet( type, 4 );
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hasFaceVertexNormal = isBitSet( type, 5 );
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hasFaceColor = isBitSet( type, 6 );
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hasFaceVertexColor = isBitSet( type, 7 );
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// console.log("type", type, "bits", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);
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if ( isQuad ) {
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faceA = new THREE.Face3();
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faceA.a = faces[ offset ];
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faceA.b = faces[ offset + 1 ];
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faceA.c = faces[ offset + 3 ];
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faceB = new THREE.Face3();
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faceB.a = faces[ offset + 1 ];
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faceB.b = faces[ offset + 2 ];
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faceB.c = faces[ offset + 3 ];
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offset += 4;
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if ( hasMaterial ) {
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materialIndex = faces[ offset ++ ];
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faceA.materialIndex = materialIndex;
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faceB.materialIndex = materialIndex;
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}
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// to get face <=> uv index correspondence
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fi = geometry.faces.length;
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if ( hasFaceVertexUv ) {
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for ( i = 0; i < nUvLayers; i ++ ) {
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uvLayer = json.uvs[ i ];
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geometry.faceVertexUvs[ i ][ fi ] = [];
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geometry.faceVertexUvs[ i ][ fi + 1 ] = [];
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for ( j = 0; j < 4; j ++ ) {
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uvIndex = faces[ offset ++ ];
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u = uvLayer[ uvIndex * 2 ];
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v = uvLayer[ uvIndex * 2 + 1 ];
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uv = new THREE.Vector2( u, v );
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if ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );
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if ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );
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}
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}
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}
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if ( hasFaceNormal ) {
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normalIndex = faces[ offset ++ ] * 3;
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faceA.normal.set(
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normals[ normalIndex ++ ],
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normals[ normalIndex ++ ],
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normals[ normalIndex ]
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);
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faceB.normal.copy( faceA.normal );
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}
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if ( hasFaceVertexNormal ) {
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for ( i = 0; i < 4; i ++ ) {
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normalIndex = faces[ offset ++ ] * 3;
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normal = new THREE.Vector3(
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normals[ normalIndex ++ ],
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normals[ normalIndex ++ ],
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normals[ normalIndex ]
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);
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if ( i !== 2 ) faceA.vertexNormals.push( normal );
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if ( i !== 0 ) faceB.vertexNormals.push( normal );
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}
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}
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if ( hasFaceColor ) {
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colorIndex = faces[ offset ++ ];
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hex = colors[ colorIndex ];
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faceA.color.setHex( hex );
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faceB.color.setHex( hex );
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}
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if ( hasFaceVertexColor ) {
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for ( i = 0; i < 4; i ++ ) {
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colorIndex = faces[ offset ++ ];
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hex = colors[ colorIndex ];
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if ( i !== 2 ) faceA.vertexColors.push( new THREE.Color( hex ) );
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if ( i !== 0 ) faceB.vertexColors.push( new THREE.Color( hex ) );
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}
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}
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geometry.faces.push( faceA );
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geometry.faces.push( faceB );
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} else {
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face = new THREE.Face3();
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face.a = faces[ offset ++ ];
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face.b = faces[ offset ++ ];
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face.c = faces[ offset ++ ];
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if ( hasMaterial ) {
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materialIndex = faces[ offset ++ ];
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face.materialIndex = materialIndex;
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}
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// to get face <=> uv index correspondence
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fi = geometry.faces.length;
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if ( hasFaceVertexUv ) {
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for ( i = 0; i < nUvLayers; i ++ ) {
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uvLayer = json.uvs[ i ];
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geometry.faceVertexUvs[ i ][ fi ] = [];
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for ( j = 0; j < 3; j ++ ) {
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uvIndex = faces[ offset ++ ];
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u = uvLayer[ uvIndex * 2 ];
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v = uvLayer[ uvIndex * 2 + 1 ];
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uv = new THREE.Vector2( u, v );
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geometry.faceVertexUvs[ i ][ fi ].push( uv );
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}
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}
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}
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if ( hasFaceNormal ) {
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normalIndex = faces[ offset ++ ] * 3;
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face.normal.set(
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normals[ normalIndex ++ ],
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normals[ normalIndex ++ ],
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normals[ normalIndex ]
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);
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}
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if ( hasFaceVertexNormal ) {
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for ( i = 0; i < 3; i ++ ) {
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normalIndex = faces[ offset ++ ] * 3;
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|
normal = new THREE.Vector3(
|
|
normals[ normalIndex ++ ],
|
|
normals[ normalIndex ++ ],
|
|
normals[ normalIndex ]
|
|
);
|
|
|
|
face.vertexNormals.push( normal );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
if ( hasFaceColor ) {
|
|
|
|
colorIndex = faces[ offset ++ ];
|
|
face.color.setHex( colors[ colorIndex ] );
|
|
|
|
}
|
|
|
|
|
|
if ( hasFaceVertexColor ) {
|
|
|
|
for ( i = 0; i < 3; i ++ ) {
|
|
|
|
colorIndex = faces[ offset ++ ];
|
|
face.vertexColors.push( new THREE.Color( colors[ colorIndex ] ) );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
geometry.faces.push( face );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function parseSkin( json, geometry ) {
|
|
|
|
var influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;
|
|
|
|
if ( json.skinWeights ) {
|
|
|
|
for ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {
|
|
|
|
var x = json.skinWeights[ i ];
|
|
var y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;
|
|
var z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;
|
|
var w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;
|
|
|
|
geometry.skinWeights.push( new THREE.Vector4( x, y, z, w ) );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ( json.skinIndices ) {
|
|
|
|
for ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {
|
|
|
|
var a = json.skinIndices[ i ];
|
|
var b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;
|
|
var c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;
|
|
var d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;
|
|
|
|
geometry.skinIndices.push( new THREE.Vector4( a, b, c, d ) );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
geometry.bones = json.bones;
|
|
|
|
if ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {
|
|
|
|
console.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +
|
|
geometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function parseMorphing( json, geometry ) {
|
|
|
|
var scale = json.scale;
|
|
|
|
if ( json.morphTargets !== undefined ) {
|
|
|
|
for ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {
|
|
|
|
geometry.morphTargets[ i ] = {};
|
|
geometry.morphTargets[ i ].name = json.morphTargets[ i ].name;
|
|
geometry.morphTargets[ i ].vertices = [];
|
|
|
|
var dstVertices = geometry.morphTargets[ i ].vertices;
|
|
var srcVertices = json.morphTargets[ i ].vertices;
|
|
|
|
for ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {
|
|
|
|
var vertex = new THREE.Vector3();
|
|
vertex.x = srcVertices[ v ] * scale;
|
|
vertex.y = srcVertices[ v + 1 ] * scale;
|
|
vertex.z = srcVertices[ v + 2 ] * scale;
|
|
|
|
dstVertices.push( vertex );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ( json.morphColors !== undefined && json.morphColors.length > 0 ) {
|
|
|
|
console.warn( 'THREE.JSONLoader: "morphColors" no longer supported. Using them as face colors.' );
|
|
|
|
var faces = geometry.faces;
|
|
var morphColors = json.morphColors[ 0 ].colors;
|
|
|
|
for ( var i = 0, l = faces.length; i < l; i ++ ) {
|
|
|
|
faces[ i ].color.fromArray( morphColors, i * 3 );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function parseAnimations( json, geometry ) {
|
|
|
|
var outputAnimations = [];
|
|
|
|
// parse old style Bone/Hierarchy animations
|
|
var animations = [];
|
|
|
|
if ( json.animation !== undefined ) {
|
|
|
|
animations.push( json.animation );
|
|
|
|
}
|
|
|
|
if ( json.animations !== undefined ) {
|
|
|
|
if ( json.animations.length ) {
|
|
|
|
animations = animations.concat( json.animations );
|
|
|
|
} else {
|
|
|
|
animations.push( json.animations );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for ( var i = 0; i < animations.length; i ++ ) {
|
|
|
|
var clip = THREE.AnimationClip.parseAnimation( animations[ i ], geometry.bones );
|
|
if ( clip ) outputAnimations.push( clip );
|
|
|
|
}
|
|
|
|
// parse implicit morph animations
|
|
if ( geometry.morphTargets ) {
|
|
|
|
// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.
|
|
var morphAnimationClips = THREE.AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );
|
|
outputAnimations = outputAnimations.concat( morphAnimationClips );
|
|
|
|
}
|
|
|
|
if ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;
|
|
|
|
}
|
|
|
|
return function parse( json, path ) {
|
|
|
|
if ( json.data !== undefined ) {
|
|
|
|
// Geometry 4.0 spec
|
|
json = json.data;
|
|
|
|
}
|
|
|
|
if ( json.scale !== undefined ) {
|
|
|
|
json.scale = 1.0 / json.scale;
|
|
|
|
} else {
|
|
|
|
json.scale = 1.0;
|
|
|
|
}
|
|
|
|
var geometry = new THREE.Geometry();
|
|
|
|
parseModel( json, geometry );
|
|
parseSkin( json, geometry );
|
|
parseMorphing( json, geometry );
|
|
parseAnimations( json, geometry );
|
|
|
|
geometry.computeFaceNormals();
|
|
geometry.computeBoundingSphere();
|
|
|
|
if ( json.materials === undefined || json.materials.length === 0 ) {
|
|
|
|
return { geometry: geometry };
|
|
|
|
} else {
|
|
|
|
var materials = initMaterials( json.materials, this.resourcePath || path, this.crossOrigin, this.manager );
|
|
|
|
return { geometry: geometry, materials: materials };
|
|
|
|
}
|
|
|
|
};
|
|
|
|
} )()
|
|
|
|
} );
|
|
|
|
return LegacyJSONLoader;
|
|
|
|
} )();
|