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OBJLoader2.js
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/**
* @author Kai Salmen / https://kaisalmen.de
* Development repository: https://github.com/kaisalmen/WWOBJLoader
*/
'use strict';
if ( THREE.OBJLoader2 === undefined ) { THREE.OBJLoader2 = {} }
if ( THREE.LoaderSupport === undefined ) console.error( '"THREE.LoaderSupport" is not available. "THREE.OBJLoader2" requires it. Please include "LoaderSupport.js" in your HTML.' );
/**
* Use this class to load OBJ data from files or to parse OBJ data from an arraybuffer
* @class
*
* @param {THREE.DefaultLoadingManager} [manager] The loadingManager for the loader to use. Default is {@link THREE.DefaultLoadingManager}
*/
THREE.OBJLoader2 = function ( manager ) {
this.manager = THREE.LoaderSupport.Validator.verifyInput( manager, THREE.DefaultLoadingManager );
this.logging = {
enabled: true,
debug: false
};
this.modelName = '';
this.instanceNo = 0;
this.path;
this.resourcePath;
this.useIndices = false;
this.disregardNormals = false;
this.materialPerSmoothingGroup = false;
this.useOAsMesh = false;
this.loaderRootNode = new THREE.Group();
this.meshBuilder = new THREE.LoaderSupport.MeshBuilder();
this.callbacks = new THREE.LoaderSupport.Callbacks();
this.workerSupport = new THREE.LoaderSupport.WorkerSupport();
this.terminateWorkerOnLoad = true;
};
THREE.OBJLoader2.OBJLOADER2_VERSION = '2.5.1';
console.info( 'Using THREE.OBJLoader2 version: ' + THREE.OBJLoader2.OBJLOADER2_VERSION );
THREE.OBJLoader2.prototype = {
constructor: THREE.OBJLoader2,
/**
* Enable or disable logging in general (except warn and error), plus enable or disable debug logging.
*
* @param {boolean} enabled True or false.
* @param {boolean} debug True or false.
*/
setLogging: function ( enabled, debug ) {
this.logging.enabled = enabled === true;
this.logging.debug = debug === true;
this.meshBuilder.setLogging( this.logging.enabled, this.logging.debug );
},
/**
* Set the name of the model.
*
* @param {string} modelName
*/
setModelName: function ( modelName ) {
this.modelName = THREE.LoaderSupport.Validator.verifyInput( modelName, this.modelName );
},
/**
* The URL of the base path.
*
* @param {string} path URL
*/
setPath: function ( path ) {
this.path = THREE.LoaderSupport.Validator.verifyInput( path, this.path );
},
/**
* Allows to specify resourcePath for dependencies of specified resource.
* @param {string} resourcePath
*/
setResourcePath: function ( resourcePath ) {
this.resourcePath = THREE.LoaderSupport.Validator.verifyInput( resourcePath, this.resourcePath );
},
/**
* Set the node where the loaded objects will be attached directly.
*
* @param {THREE.Object3D} streamMeshesTo Object already attached to scenegraph where new meshes will be attached to
*/
setStreamMeshesTo: function ( streamMeshesTo ) {
this.loaderRootNode = THREE.LoaderSupport.Validator.verifyInput( streamMeshesTo, this.loaderRootNode );
},
/**
* Set materials loaded by MTLLoader or any other supplier of an Array of {@link THREE.Material}.
*
* @param {THREE.Material[]} materials Array of {@link THREE.Material}
*/
setMaterials: function ( materials ) {
this.meshBuilder.setMaterials( materials );
},
/**
* Instructs loaders to create indexed {@link THREE.BufferGeometry}.
*
* @param {boolean} useIndices=false
*/
setUseIndices: function ( useIndices ) {
this.useIndices = useIndices === true;
},
/**
* Tells whether normals should be completely disregarded and regenerated.
*
* @param {boolean} disregardNormals=false
*/
setDisregardNormals: function ( disregardNormals ) {
this.disregardNormals = disregardNormals === true;
},
/**
* Tells whether a material shall be created per smoothing group.
*
* @param {boolean} materialPerSmoothingGroup=false
*/
setMaterialPerSmoothingGroup: function ( materialPerSmoothingGroup ) {
this.materialPerSmoothingGroup = materialPerSmoothingGroup === true;
},
/**
* Usually 'o' is meta-information and does not result in creation of new meshes, but mesh creation on occurrence of "o" can be enforced.
*
* @param {boolean} useOAsMesh=false
*/
setUseOAsMesh: function ( useOAsMesh ) {
this.useOAsMesh = useOAsMesh === true;
},
_setCallbacks: function ( callbacks ) {
if ( THREE.LoaderSupport.Validator.isValid( callbacks.onProgress ) ) this.callbacks.setCallbackOnProgress( callbacks.onProgress );
if ( THREE.LoaderSupport.Validator.isValid( callbacks.onReportError ) ) this.callbacks.setCallbackOnReportError( callbacks.onReportError );
if ( THREE.LoaderSupport.Validator.isValid( callbacks.onMeshAlter ) ) this.callbacks.setCallbackOnMeshAlter( callbacks.onMeshAlter );
if ( THREE.LoaderSupport.Validator.isValid( callbacks.onLoad ) ) this.callbacks.setCallbackOnLoad( callbacks.onLoad );
if ( THREE.LoaderSupport.Validator.isValid( callbacks.onLoadMaterials ) ) this.callbacks.setCallbackOnLoadMaterials( callbacks.onLoadMaterials );
this.meshBuilder._setCallbacks( this.callbacks );
},
/**
* Announce feedback which is give to the registered callbacks.
* @private
*
* @param {string} type The type of event
* @param {string} text Textual description of the event
* @param {number} numericalValue Numerical value describing the progress
*/
onProgress: function ( type, text, numericalValue ) {
var content = THREE.LoaderSupport.Validator.isValid( text ) ? text: '';
var event = {
detail: {
type: type,
modelName: this.modelName,
instanceNo: this.instanceNo,
text: content,
numericalValue: numericalValue
}
};
if ( THREE.LoaderSupport.Validator.isValid( this.callbacks.onProgress ) ) this.callbacks.onProgress( event );
if ( this.logging.enabled && this.logging.debug ) console.debug( content );
},
_onError: function ( errorMessage ) {
if ( this.logging.enabled && this.logging.debug ) {
console.log( errorMessage );
}
if ( THREE.LoaderSupport.Validator.isValid( this.callbacks.onReportError ) ) {
this.callbacks.onReportError( errorMessage );
} else {
throw errorMessage;
}
},
/**
* Use this convenient method to load a file at the given URL. By default the fileLoader uses an ArrayBuffer.
*
* @param {string} url A string containing the path/URL of the file to be loaded.
* @param {callback} onLoad A function to be called after loading is successfully completed. The function receives loaded Object3D as an argument.
* @param {callback} [onProgress] A function to be called while the loading is in progress. The argument will be the XMLHttpRequest instance, which contains total and Integer bytes.
* @param {callback} [onError] A function to be called if an error occurs during loading. The function receives the error as an argument.
* @param {callback} [onMeshAlter] A function to be called after a new mesh raw data becomes available for alteration.
* @param {boolean} [useAsync] If true, uses async loading with worker, if false loads data synchronously.
*/
load: function ( url, onLoad, onProgress, onError, onMeshAlter, useAsync ) {
var resource = new THREE.LoaderSupport.ResourceDescriptor( url, 'OBJ' );
this._loadObj( resource, onLoad, onProgress, onError, onMeshAlter, useAsync );
},
_loadObj: function ( resource, onLoad, onProgress, onError, onMeshAlter, useAsync ) {
var scope = this;
if ( ! THREE.LoaderSupport.Validator.isValid( onError ) ) {
onError = function ( event ) {
var errorMessage = event;
if ( event.currentTarget && event.currentTarget.statusText !== null ) {
errorMessage = 'Error occurred while downloading!\nurl: ' + event.currentTarget.responseURL + '\nstatus: ' + event.currentTarget.statusText;
}
scope._onError( errorMessage );
};
}
// fast-fail
if ( ! THREE.LoaderSupport.Validator.isValid( resource ) ) onError( 'An invalid ResourceDescriptor was provided. Unable to continue!' );
var fileLoaderOnLoad = function ( content ) {
resource.content = content;
if ( useAsync ) {
scope.parseAsync( content, onLoad );
} else {
var callbacks = new THREE.LoaderSupport.Callbacks();
callbacks.setCallbackOnMeshAlter( onMeshAlter );
scope._setCallbacks( callbacks );
onLoad(
{
detail: {
loaderRootNode: scope.parse( content ),
modelName: scope.modelName,
instanceNo: scope.instanceNo
}
}
);
}
};
this.setPath( resource.path );
this.setResourcePath( resource.resourcePath );
// fast-fail
if ( ! THREE.LoaderSupport.Validator.isValid( resource.url ) || THREE.LoaderSupport.Validator.isValid( resource.content ) ) {
fileLoaderOnLoad( THREE.LoaderSupport.Validator.isValid( resource.content ) ? resource.content : null );
} else {
if ( ! THREE.LoaderSupport.Validator.isValid( onProgress ) ) {
var numericalValueRef = 0;
var numericalValue = 0;
onProgress = function ( event ) {
if ( ! event.lengthComputable ) return;
numericalValue = event.loaded / event.total;
if ( numericalValue > numericalValueRef ) {
numericalValueRef = numericalValue;
var output = 'Download of "' + resource.url + '": ' + ( numericalValue * 100 ).toFixed( 2 ) + '%';
scope.onProgress( 'progressLoad', output, numericalValue );
}
};
}
var fileLoader = new THREE.FileLoader( this.manager );
fileLoader.setPath( this.path || this.resourcePath );
fileLoader.setResponseType( 'arraybuffer' );
fileLoader.load( resource.name, fileLoaderOnLoad, onProgress, onError );
}
},
/**
* Run the loader according the provided instructions.
*
* @param {THREE.LoaderSupport.PrepData} prepData All parameters and resources required for execution
* @param {THREE.LoaderSupport.WorkerSupport} [workerSupportExternal] Use pre-existing WorkerSupport
*/
run: function ( prepData, workerSupportExternal ) {
this._applyPrepData( prepData );
var available = prepData.checkResourceDescriptorFiles( prepData.resources,
[
{ ext: "obj", type: "ArrayBuffer", ignore: false },
{ ext: "mtl", type: "String", ignore: false },
{ ext: "zip", type: "String", ignore: true }
]
);
if ( THREE.LoaderSupport.Validator.isValid( workerSupportExternal ) ) {
this.terminateWorkerOnLoad = false;
this.workerSupport = workerSupportExternal;
this.logging.enabled = this.workerSupport.logging.enabled;
this.logging.debug = this.workerSupport.logging.debug;
}
var scope = this;
var onMaterialsLoaded = function ( materials ) {
if ( materials !== null ) scope.meshBuilder.setMaterials( materials );
scope._loadObj( available.obj, scope.callbacks.onLoad, null, null, scope.callbacks.onMeshAlter, prepData.useAsync );
};
this._loadMtl( available.mtl, onMaterialsLoaded, null, null, prepData.crossOrigin, prepData.materialOptions );
},
_applyPrepData: function ( prepData ) {
if ( THREE.LoaderSupport.Validator.isValid( prepData ) ) {
this.setLogging( prepData.logging.enabled, prepData.logging.debug );
this.setModelName( prepData.modelName );
this.setStreamMeshesTo( prepData.streamMeshesTo );
this.meshBuilder.setMaterials( prepData.materials );
this.setUseIndices( prepData.useIndices );
this.setDisregardNormals( prepData.disregardNormals );
this.setMaterialPerSmoothingGroup( prepData.materialPerSmoothingGroup );
this.setUseOAsMesh( prepData.useOAsMesh );
this._setCallbacks( prepData.getCallbacks() );
}
},
/**
* Parses OBJ data synchronously from arraybuffer or string.
*
* @param {arraybuffer|string} content OBJ data as Uint8Array or String
*/
parse: function ( content ) {
// fast-fail in case of illegal data
if ( content === null || content === undefined ) {
throw 'Provided content is not a valid ArrayBuffer or String. Unable to continue parsing';
}
if ( this.logging.enabled ) console.time( 'OBJLoader2 parse: ' + this.modelName );
this.meshBuilder.init();
var parser = new THREE.OBJLoader2.Parser();
parser.setLogging( this.logging.enabled, this.logging.debug );
parser.setMaterialPerSmoothingGroup( this.materialPerSmoothingGroup );
parser.setUseOAsMesh( this.useOAsMesh );
parser.setUseIndices( this.useIndices );
parser.setDisregardNormals( this.disregardNormals );
// sync code works directly on the material references
parser.setMaterials( this.meshBuilder.getMaterials() );
var scope = this;
var onMeshLoaded = function ( payload ) {
var meshes = scope.meshBuilder.processPayload( payload );
var mesh;
for ( var i in meshes ) {
mesh = meshes[ i ];
scope.loaderRootNode.add( mesh );
}
};
parser.setCallbackOnAssetAvailable( onMeshLoaded );
var onProgressScoped = function ( text, numericalValue ) {
scope.onProgress( 'progressParse', text, numericalValue );
};
parser.setCallbackOnProgress( onProgressScoped );
var onErrorScoped = function ( message ) {
scope._onError( message );
};
parser.setCallbackOnError( onErrorScoped );
if ( content instanceof ArrayBuffer || content instanceof Uint8Array ) {
if ( this.logging.enabled ) console.info( 'Parsing arrayBuffer...' );
parser.parse( content );
} else if ( typeof( content ) === 'string' || content instanceof String ) {
if ( this.logging.enabled ) console.info( 'Parsing text...' );
parser.parseText( content );
} else {
this._onError( 'Provided content was neither of type String nor Uint8Array! Aborting...' );
}
if ( this.logging.enabled ) console.timeEnd( 'OBJLoader2 parse: ' + this.modelName );
return this.loaderRootNode;
},
/**
* Parses OBJ content asynchronously from arraybuffer.
*
* @param {arraybuffer} content OBJ data as Uint8Array
* @param {callback} onLoad Called after worker successfully completed loading
*/
parseAsync: function ( content, onLoad ) {
var scope = this;
var measureTime = false;
var scopedOnLoad = function () {
onLoad(
{
detail: {
loaderRootNode: scope.loaderRootNode,
modelName: scope.modelName,
instanceNo: scope.instanceNo
}
}
);
if ( measureTime && scope.logging.enabled ) console.timeEnd( 'OBJLoader2 parseAsync: ' + scope.modelName );
};
// fast-fail in case of illegal data
if ( content === null || content === undefined ) {
throw 'Provided content is not a valid ArrayBuffer or String. Unable to continue parsing';
} else {
measureTime = true;
}
if ( measureTime && this.logging.enabled ) console.time( 'OBJLoader2 parseAsync: ' + this.modelName );
this.meshBuilder.init();
var scopedOnMeshLoaded = function ( payload ) {
var meshes = scope.meshBuilder.processPayload( payload );
var mesh;
for ( var i in meshes ) {
mesh = meshes[ i ];
scope.loaderRootNode.add( mesh );
}
};
var buildCode = function ( codeSerializer ) {
var workerCode = '';
workerCode += '/**\n';
workerCode += ' * This code was constructed by OBJLoader2 buildCode.\n';
workerCode += ' */\n\n';
workerCode += 'THREE = { LoaderSupport: {}, OBJLoader2: {} };\n\n';
workerCode += codeSerializer.serializeClass( 'THREE.OBJLoader2.Parser', THREE.OBJLoader2.Parser );
return workerCode;
};
this.workerSupport.validate( buildCode, 'THREE.OBJLoader2.Parser' );
this.workerSupport.setCallbacks( scopedOnMeshLoaded, scopedOnLoad );
if ( scope.terminateWorkerOnLoad ) this.workerSupport.setTerminateRequested( true );
var materialNames = {};
var materials = this.meshBuilder.getMaterials();
for ( var materialName in materials ) {
materialNames[ materialName ] = materialName;
}
this.workerSupport.run(
{
params: {
useAsync: true,
materialPerSmoothingGroup: this.materialPerSmoothingGroup,
useOAsMesh: this.useOAsMesh,
useIndices: this.useIndices,
disregardNormals: this.disregardNormals
},
logging: {
enabled: this.logging.enabled,
debug: this.logging.debug
},
materials: {
// in async case only material names are supplied to parser
materials: materialNames
},
data: {
input: content,
options: null
}
}
);
},
/**
* Utility method for loading an mtl file according resource description. Provide url or content.
*
* @param {string} url URL to the file
* @param {Object} content The file content as arraybuffer or text
* @param {function} onLoad Callback to be called after successful load
* @param {callback} [onProgress] A function to be called while the loading is in progress. The argument will be the XMLHttpRequest instance, which contains total and Integer bytes.
* @param {callback} [onError] A function to be called if an error occurs during loading. The function receives the error as an argument.
* @param {string} [crossOrigin] CORS value
* @param {Object} [materialOptions] Set material loading options for MTLLoader
*/
loadMtl: function ( url, content, onLoad, onProgress, onError, crossOrigin, materialOptions ) {
var resource = new THREE.LoaderSupport.ResourceDescriptor( url, 'MTL' );
resource.setContent( content );
this._loadMtl( resource, onLoad, onProgress, onError, crossOrigin, materialOptions );
},
_loadMtl: function ( resource, onLoad, onProgress, onError, crossOrigin, materialOptions ) {
if ( THREE.MTLLoader === undefined ) console.error( '"THREE.MTLLoader" is not available. "THREE.OBJLoader2" requires it for loading MTL files.' );
if ( THREE.LoaderSupport.Validator.isValid( resource ) && this.logging.enabled ) console.time( 'Loading MTL: ' + resource.name );
var materials = {};
var scope = this;
var processMaterials = function ( materialCreator ) {
var materialCreatorMaterials = [];
if ( THREE.LoaderSupport.Validator.isValid( materialCreator ) ) {
materialCreator.preload();
materialCreatorMaterials = materialCreator.materials;
for ( var materialName in materialCreatorMaterials ) {
if ( materialCreatorMaterials.hasOwnProperty( materialName ) ) {
materials[ materialName ] = materialCreatorMaterials[ materialName ];
}
}
}
if ( THREE.LoaderSupport.Validator.isValid( resource ) && scope.logging.enabled ) console.timeEnd( 'Loading MTL: ' + resource.name );
onLoad( materials, materialCreator );
};
// fast-fail
if ( ! THREE.LoaderSupport.Validator.isValid( resource ) || ( ! THREE.LoaderSupport.Validator.isValid( resource.content ) && ! THREE.LoaderSupport.Validator.isValid( resource.url ) ) ) {
processMaterials();
} else {
var mtlLoader = new THREE.MTLLoader( this.manager );
crossOrigin = THREE.LoaderSupport.Validator.verifyInput( crossOrigin, 'anonymous' );
mtlLoader.setCrossOrigin( crossOrigin );
mtlLoader.setResourcePath( resource.resourcePath || resource.path );
if ( THREE.LoaderSupport.Validator.isValid( materialOptions ) ) mtlLoader.setMaterialOptions( materialOptions );
var parseTextWithMtlLoader = function ( content ) {
var contentAsText = content;
if ( typeof( content ) !== 'string' && ! ( content instanceof String ) ) {
if ( content.length > 0 || content.byteLength > 0 ) {
contentAsText = THREE.LoaderUtils.decodeText( content );
} else {
scope._onError( 'Unable to parse mtl as it it seems to be neither a String, an Array or an ArrayBuffer!' );
}
}
processMaterials( mtlLoader.parse( contentAsText ) );
};
if ( THREE.LoaderSupport.Validator.isValid( resource.content ) ) {
parseTextWithMtlLoader( resource.content );
} else if ( THREE.LoaderSupport.Validator.isValid( resource.url ) ) {
var fileLoader = new THREE.FileLoader( this.manager );
if ( ! THREE.LoaderSupport.Validator.isValid( onError ) ) {
onError = function ( event ) {
scope._onError( event );
}
}
if ( ! THREE.LoaderSupport.Validator.isValid( onProgress ) ) {
var numericalValueRef = 0;
var numericalValue = 0;
onProgress = function ( event ) {
if ( ! event.lengthComputable ) return;
numericalValue = event.loaded / event.total;
if ( numericalValue > numericalValueRef ) {
numericalValueRef = numericalValue;
var output = 'Download of "' + resource.url + '": ' + ( numericalValue * 100 ).toFixed( 2 ) + '%';
scope.onProgress( 'progressLoad', output, numericalValue );
}
};
}
fileLoader.load( resource.url, parseTextWithMtlLoader, onProgress, onError );
}
}
}
};
/**
* Parse OBJ data either from ArrayBuffer or string
* @class
*/
THREE.OBJLoader2.Parser = function () {
this.callbacks = {
onProgress: null,
onAssetAvailable: null,
onError: null
};
this.contentRef = null;
this.legacyMode = false;
this.materials = {};
this.useAsync = false;
this.materialPerSmoothingGroup = false;
this.useOAsMesh = false;
this.useIndices = false;
this.disregardNormals = false;
this.vertices = [];
this.colors = [];
this.normals = [];
this.uvs = [];
this.rawMesh = {
objectName: '',
groupName: '',
activeMtlName: '',
mtllibName: '',
// reset with new mesh
faceType: -1,
subGroups: [],
subGroupInUse: null,
smoothingGroup: {
splitMaterials: false,
normalized: -1,
real: -1
},
counts: {
doubleIndicesCount: 0,
faceCount: 0,
mtlCount: 0,
smoothingGroupCount: 0
}
};
this.inputObjectCount = 1;
this.outputObjectCount = 1;
this.globalCounts = {
vertices: 0,
faces: 0,
doubleIndicesCount: 0,
lineByte: 0,
currentByte: 0,
totalBytes: 0
};
this.logging = {
enabled: true,
debug: false
};
};
THREE.OBJLoader2.Parser.prototype = {
constructor: THREE.OBJLoader2.Parser,
resetRawMesh: function () {
// faces are stored according combined index of group, material and smoothingGroup (0 or not)
this.rawMesh.subGroups = [];
this.rawMesh.subGroupInUse = null;
this.rawMesh.smoothingGroup.normalized = -1;
this.rawMesh.smoothingGroup.real = -1;
// this default index is required as it is possible to define faces without 'g' or 'usemtl'
this.pushSmoothingGroup( 1 );
this.rawMesh.counts.doubleIndicesCount = 0;
this.rawMesh.counts.faceCount = 0;
this.rawMesh.counts.mtlCount = 0;
this.rawMesh.counts.smoothingGroupCount = 0;
},
setUseAsync: function ( useAsync ) {
this.useAsync = useAsync;
},
setMaterialPerSmoothingGroup: function ( materialPerSmoothingGroup ) {
this.materialPerSmoothingGroup = materialPerSmoothingGroup;
},
setUseOAsMesh: function ( useOAsMesh ) {
this.useOAsMesh = useOAsMesh;
},
setUseIndices: function ( useIndices ) {
this.useIndices = useIndices;
},
setDisregardNormals: function ( disregardNormals ) {
this.disregardNormals = disregardNormals;
},
setMaterials: function ( materials ) {
if ( materials === undefined || materials === null ) return;
for ( var materialName in materials ) {
if ( materials.hasOwnProperty( materialName ) ) {
this.materials[ materialName ] = materials[ materialName ];
}
}
},
setCallbackOnAssetAvailable: function ( onAssetAvailable ) {
if ( onAssetAvailable !== null && onAssetAvailable !== undefined ) {
this.callbacks.onAssetAvailable = onAssetAvailable;
}
},
setCallbackOnProgress: function ( onProgress ) {
if ( onProgress !== null && onProgress !== undefined ) {
this.callbacks.onProgress = onProgress;
}
},
setCallbackOnError: function ( onError ) {
if ( onError !== null && onError !== undefined ) {
this.callbacks.onError = onError;
}
},
setLogging: function ( enabled, debug ) {
this.logging.enabled = enabled === true;
this.logging.debug = debug === true;
},
configure: function () {
if ( this.callbacks.onAssetAvailable === null ) {
var errorMessage = 'Unable to run as no callback for building meshes is set.';
if ( this.callbacks.onError !== null ) {
this.callbacks.onError( errorMessage );
} else {
throw errorMessage;
}
}
this.pushSmoothingGroup( 1 );
if ( this.logging.enabled ) {
var matKeys = Object.keys( this.materials );
var matNames = ( matKeys.length > 0 ) ? '\n\tmaterialNames:\n\t\t- ' + matKeys.join( '\n\t\t- ' ) : '\n\tmaterialNames: None';
var printedConfig = 'OBJLoader2.Parser configuration:'
+ matNames
+ '\n\tuseAsync: ' + this.useAsync
+ '\n\tmaterialPerSmoothingGroup: ' + this.materialPerSmoothingGroup
+ '\n\tuseOAsMesh: ' + this.useOAsMesh
+ '\n\tuseIndices: ' + this.useIndices
+ '\n\tdisregardNormals: ' + this.disregardNormals;
if ( this.callbacks.onProgress !== null ) {
printedConfig += '\n\tcallbacks.onProgress: ' + this.callbacks.onProgress.name;
}
if ( this.callbacks.onAssetAvailable !== null ) {
printedConfig += '\n\tcallbacks.onAssetAvailable: ' + this.callbacks.onAssetAvailable.name;
}
if ( this.callbacks.onError !== null ) {
printedConfig += '\n\tcallbacks.onError: ' + this.callbacks.onError.name;
}
console.info( printedConfig );
}
},
/**
* Parse the provided arraybuffer
*
* @param {Uint8Array} arrayBuffer OBJ data as Uint8Array
*/
parse: function ( arrayBuffer ) {
if ( this.logging.enabled ) console.time( 'OBJLoader2.Parser.parse' );
this.configure();
var arrayBufferView = new Uint8Array( arrayBuffer );
this.contentRef = arrayBufferView;
var length = arrayBufferView.byteLength;
this.globalCounts.totalBytes = length;
var buffer = new Array( 128 );
for ( var code, word = '', bufferPointer = 0, slashesCount = 0, i = 0; i < length; i++ ) {
code = arrayBufferView[ i ];
switch ( code ) {
// space
case 32:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
word = '';
break;
// slash
case 47:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
slashesCount++;
word = '';
break;
// LF
case 10:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
word = '';
this.globalCounts.lineByte = this.globalCounts.currentByte;
this.globalCounts.currentByte = i;
this.processLine( buffer, bufferPointer, slashesCount );
bufferPointer = 0;
slashesCount = 0;
break;
// CR
case 13:
break;
default:
word += String.fromCharCode( code );
break;
}
}
this.finalizeParsing();
if ( this.logging.enabled ) console.timeEnd( 'OBJLoader2.Parser.parse' );
},
/**
* Parse the provided text
*
* @param {string} text OBJ data as string
*/
parseText: function ( text ) {
if ( this.logging.enabled ) console.time( 'OBJLoader2.Parser.parseText' );
this.configure();
this.legacyMode = true;
this.contentRef = text;
var length = text.length;
this.globalCounts.totalBytes = length;
var buffer = new Array( 128 );
for ( var char, word = '', bufferPointer = 0, slashesCount = 0, i = 0; i < length; i++ ) {
char = text[ i ];
switch ( char ) {
case ' ':
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
word = '';
break;
case '/':
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
slashesCount++;
word = '';
break;
case '\n':
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
word = '';
this.globalCounts.lineByte = this.globalCounts.currentByte;
this.globalCounts.currentByte = i;
this.processLine( buffer, bufferPointer, slashesCount );
bufferPointer = 0;
slashesCount = 0;
break;
case '\r':
break;
default:
word += char;
}
}
this.finalizeParsing();
if ( this.logging.enabled ) console.timeEnd( 'OBJLoader2.Parser.parseText' );
},
processLine: function ( buffer, bufferPointer, slashesCount ) {
if ( bufferPointer < 1 ) return;
var reconstructString = function ( content, legacyMode, start, stop ) {
var line = '';
if ( stop > start ) {
var i;
if ( legacyMode ) {
for ( i = start; i < stop; i++ ) line += content[ i ];
} else {
for ( i = start; i < stop; i++ ) line += String.fromCharCode( content[ i ] );
}
line = line.trim();
}
return line;
};
var bufferLength, length, i, lineDesignation;
lineDesignation = buffer [ 0 ];
switch ( lineDesignation ) {
case 'v':
this.vertices.push( parseFloat( buffer[ 1 ] ) );
this.vertices.push( parseFloat( buffer[ 2 ] ) );
this.vertices.push( parseFloat( buffer[ 3 ] ) );
if ( bufferPointer > 4 ) {
this.colors.push( parseFloat( buffer[ 4 ] ) );
this.colors.push( parseFloat( buffer[ 5 ] ) );
this.colors.push( parseFloat( buffer[ 6 ] ) );
}
break;
case 'vt':
this.uvs.push( parseFloat( buffer[ 1 ] ) );
this.uvs.push( parseFloat( buffer[ 2 ] ) );
break;
case 'vn':
this.normals.push( parseFloat( buffer[ 1 ] ) );
this.normals.push( parseFloat( buffer[ 2 ] ) );
this.normals.push( parseFloat( buffer[ 3 ] ) );
break;
case 'f':
bufferLength = bufferPointer - 1;
// "f vertex ..."
if ( slashesCount === 0 ) {
this.checkFaceType( 0 );
for ( i = 2, length = bufferLength; i < length; i ++ ) {
this.buildFace( buffer[ 1 ] );
this.buildFace( buffer[ i ] );
this.buildFace( buffer[ i + 1 ] );
}
// "f vertex/uv ..."
} else if ( bufferLength === slashesCount * 2 ) {
this.checkFaceType( 1 );
for ( i = 3, length = bufferLength - 2; i < length; i += 2 ) {
this.buildFace( buffer[ 1 ], buffer[ 2 ] );
this.buildFace( buffer[ i ], buffer[ i + 1 ] );
this.buildFace( buffer[ i + 2 ], buffer[ i + 3 ] );
}
// "f vertex/uv/normal ..."
} else if ( bufferLength * 2 === slashesCount * 3 ) {
this.checkFaceType( 2 );
for ( i = 4, length = bufferLength - 3; i < length; i += 3 ) {
this.buildFace( buffer[ 1 ], buffer[ 2 ], buffer[ 3 ] );
this.buildFace( buffer[ i ], buffer[ i + 1 ], buffer[ i + 2 ] );
this.buildFace( buffer[ i + 3 ], buffer[ i + 4 ], buffer[ i + 5 ] );
}
// "f vertex//normal ..."
} else {
this.checkFaceType( 3 );
for ( i = 3, length = bufferLength - 2; i < length; i += 2 ) {
this.buildFace( buffer[ 1 ], undefined, buffer[ 2 ] );
this.buildFace( buffer[ i ], undefined, buffer[ i + 1 ] );
this.buildFace( buffer[ i + 2 ], undefined, buffer[ i + 3 ] );
}
}
break;
case 'l':
case 'p':
bufferLength = bufferPointer - 1;
if ( bufferLength === slashesCount * 2 ) {
this.checkFaceType( 4 );