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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}
* @param {THREE.LoaderSupport.ConsoleLogger} logger logger to be used
*/
THREE.OBJLoader2 = (function () {
var OBJLOADER2_VERSION = '2.2.1';
var LoaderBase = THREE.LoaderSupport.LoaderBase;
var Validator = THREE.LoaderSupport.Validator;
var ConsoleLogger = THREE.LoaderSupport.ConsoleLogger;
OBJLoader2.prototype = Object.create( THREE.LoaderSupport.LoaderBase.prototype );
OBJLoader2.prototype.constructor = OBJLoader2;
function OBJLoader2( manager, logger ) {
THREE.LoaderSupport.LoaderBase.call( this, manager, logger );
this.logger.logInfo( 'Using THREE.OBJLoader2 version: ' + OBJLOADER2_VERSION );
this.materialPerSmoothingGroup = false;
this.fileLoader = Validator.verifyInput( this.fileLoader, new THREE.FileLoader( this.manager ) );
this.workerSupport = null;
this.terminateWorkerOnLoad = true;
};
/**
* Tells whether a material shall be created per smoothing group.
* @memberOf THREE.OBJLoader2
*
* @param {boolean} materialPerSmoothingGroup=false
*/
OBJLoader2.prototype.setMaterialPerSmoothingGroup = function ( materialPerSmoothingGroup ) {
this.materialPerSmoothingGroup = materialPerSmoothingGroup === true;
};
/**
* Use this convenient method to load an OBJ file at the given URL. By default the fileLoader uses an arraybuffer.
* @memberOf THREE.OBJLoader2
*
* @param {string} url A string containing the path/URL of the .obj file.
* @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.
*/
OBJLoader2.prototype.load = function ( url, onLoad, onProgress, onError, onMeshAlter, useAsync ) {
var scope = this;
if ( ! 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 "' + url + '": ' + ( numericalValue * 100 ).toFixed( 2 ) + '%';
scope.onProgress( 'progressLoad', output, numericalValue );
}
};
}
if ( ! Validator.isValid( onError ) ) {
onError = function ( event ) {
var output = 'Error occurred while downloading "' + url + '"';
scope.logger.logError( output + ': ' + event );
scope.onProgress( 'error', output, -1 );
};
}
this.fileLoader.setPath( this.path );
this.fileLoader.setResponseType( 'arraybuffer' );
this.fileLoader.load( url, function ( 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
}
}
);
}
}, onProgress, onError );
};
/**
* Run the loader according the provided instructions.
* @memberOf THREE.OBJLoader2
*
* @param {THREE.LoaderSupport.PrepData} prepData All parameters and resources required for execution
* @param {THREE.LoaderSupport.WorkerSupport} [workerSupportExternal] Use pre-existing WorkerSupport
*/
OBJLoader2.prototype.run = function ( prepData, workerSupportExternal ) {
this._applyPrepData( prepData );
var available = this._checkFiles( prepData.resources );
if ( Validator.isValid( workerSupportExternal ) ) {
this.terminateWorkerOnLoad = false;
this.workerSupport = workerSupportExternal;
this.logger = workerSupportExternal.logger;
}
var scope = this;
var onMaterialsLoaded = function ( materials ) {
scope.builder.setMaterials( materials );
if ( Validator.isValid( available.obj.content ) ) {
if ( prepData.useAsync ) {
scope.parseAsync( available.obj.content, scope.callbacks.onLoad );
} else {
scope.parse( available.obj.content );
}
} else {
scope.setPath( available.obj.path );
scope.load( available.obj.name, scope.callbacks.onLoad, null, null, scope.callbacks.onMeshAlter, prepData.useAsync );
}
};
this._loadMtl( available.mtl, onMaterialsLoaded, prepData.crossOrigin );
};
OBJLoader2.prototype._applyPrepData = function ( prepData ) {
THREE.LoaderSupport.LoaderBase.prototype._applyPrepData.call( this, prepData );
if ( Validator.isValid( prepData ) ) {
this.setMaterialPerSmoothingGroup( prepData.materialPerSmoothingGroup );
}
};
/**
* Parses OBJ data synchronously from arraybuffer or string.
* @memberOf THREE.OBJLoader2
*
* @param {arraybuffer|string} content OBJ data as Uint8Array or String
*/
OBJLoader2.prototype.parse = function ( content ) {
this.logger.logTimeStart( 'OBJLoader2 parse: ' + this.modelName );
var parser = new Parser();
parser.setLogConfig( this.logger.enabled, this.logger.debug );
parser.setMaterialPerSmoothingGroup( this.materialPerSmoothingGroup );
parser.setUseIndices( this.useIndices );
parser.setDisregardNormals( this.disregardNormals );
// sync code works directly on the material references
parser.setMaterials( this.builder.getMaterials() );
var scope = this;
var onMeshLoaded = function ( payload ) {
var meshes = scope.builder.processPayload( payload );
var mesh;
for ( var i in meshes ) {
mesh = meshes[ i ];
scope.loaderRootNode.add( mesh );
}
};
parser.setCallbackBuilder( onMeshLoaded );
var onProgressScoped = function ( text, numericalValue ) {
scope.onProgress( 'progressParse', text, numericalValue );
};
parser.setCallbackProgress( onProgressScoped );
if ( content instanceof ArrayBuffer || content instanceof Uint8Array ) {
this.logger.logInfo( 'Parsing arrayBuffer...' );
parser.parse( content );
} else if ( typeof( content ) === 'string' || content instanceof String ) {
this.logger.logInfo( 'Parsing text...' );
parser.parseText( content );
} else {
throw 'Provided content was neither of type String nor Uint8Array! Aborting...';
}
this.logger.logTimeEnd( 'OBJLoader2 parse: ' + this.modelName );
return this.loaderRootNode;
};
/**
* Parses OBJ content asynchronously from arraybuffer.
* @memberOf THREE.OBJLoader2
*
* @param {arraybuffer} content OBJ data as Uint8Array
* @param {callback} onLoad Called after worker successfully completed loading
*/
OBJLoader2.prototype.parseAsync = function ( content, onLoad ) {
this.logger.logTimeStart( 'OBJLoader2 parseAsync: ' + this.modelName );
var scope = this;
var scopedOnLoad = function () {
onLoad(
{
detail: {
loaderRootNode: scope.loaderRootNode,
modelName: scope.modelName,
instanceNo: scope.instanceNo
}
}
);
scope.logger.logTimeEnd( 'OBJLoader2 parseAsync: ' + scope.modelName );
};
var scopedOnMeshLoaded = function ( payload ) {
var meshes = scope.builder.processPayload( payload );
var mesh;
for ( var i in meshes ) {
mesh = meshes[ i ];
scope.loaderRootNode.add( mesh );
}
};
this.workerSupport = Validator.verifyInput( this.workerSupport, new THREE.LoaderSupport.WorkerSupport( this.logger ) );
var buildCode = function ( funcBuildObject, funcBuildSingelton ) {
var workerCode = '';
workerCode += '/**\n';
workerCode += ' * This code was constructed by OBJLoader2 buildCode.\n';
workerCode += ' */\n\n';
workerCode += funcBuildObject( 'Validator', Validator );
workerCode += funcBuildSingelton( 'ConsoleLogger', 'ConsoleLogger', ConsoleLogger );
workerCode += funcBuildSingelton( 'LoaderBase', 'LoaderBase', LoaderBase );
workerCode += funcBuildObject( 'Consts', Consts );
workerCode += funcBuildSingelton( 'Parser', 'Parser', Parser );
workerCode += funcBuildSingelton( 'RawMesh', 'RawMesh', RawMesh );
workerCode += funcBuildSingelton( 'RawMeshSubGroup', 'RawMeshSubGroup', RawMeshSubGroup );
return workerCode;
};
this.workerSupport.validate( buildCode, false );
this.workerSupport.setCallbacks( scopedOnMeshLoaded, scopedOnLoad );
if ( scope.terminateWorkerOnLoad ) this.workerSupport.setTerminateRequested( true );
var materialNames = {};
var materials = this.builder.getMaterials();
for ( var materialName in materials ) {
materialNames[ materialName ] = materialName;
}
this.workerSupport.run(
{
params: {
useAsync: true,
materialPerSmoothingGroup: this.materialPerSmoothingGroup,
useIndices: this.useIndices,
disregardNormals: this.disregardNormals
},
logger: {
debug: this.logger.debug,
enabled: this.logger.enabled
},
materials: {
// in async case only material names are supplied to parser
materials: materialNames
},
data: {
input: content,
options: null
}
}
);
};
/**
* Constants used by THREE.OBJLoader2
*/
var Consts = {
CODE_LF: 10,
CODE_CR: 13,
CODE_SPACE: 32,
CODE_SLASH: 47,
STRING_LF: '\n',
STRING_CR: '\r',
STRING_SPACE: ' ',
STRING_SLASH: '/',
LINE_F: 'f',
LINE_G: 'g',
LINE_L: 'l',
LINE_O: 'o',
LINE_S: 's',
LINE_V: 'v',
LINE_VT: 'vt',
LINE_VN: 'vn',
LINE_MTLLIB: 'mtllib',
LINE_USEMTL: 'usemtl'
};
/**
* Parse OBJ data either from ArrayBuffer or string
* @class
*/
var Parser = (function () {
var ConsoleLogger = THREE.LoaderSupport.ConsoleLogger;
function Parser() {
this.callbackProgress = null;
this.callbackBuilder = null;
this.materials = {};
this.rawMesh = null;
this.useAsync = false;
this.materialPerSmoothingGroup = false;
this.useIndices = false;
this.disregardNormals = false;
this.inputObjectCount = 1;
this.outputObjectCount = 1;
this.counts = {
vertices: 0,
faces: 0,
doubleIndicesCount: 0
};
this.logger = new ConsoleLogger();
this.totalBytes = 0;
};
Parser.prototype.setUseAsync = function ( useAsync ) {
this.useAsync = useAsync;
};
Parser.prototype.setMaterialPerSmoothingGroup = function ( materialPerSmoothingGroup ) {
this.materialPerSmoothingGroup = materialPerSmoothingGroup;
};
Parser.prototype.setUseIndices = function ( useIndices ) {
this.useIndices = useIndices;
};
Parser.prototype.setDisregardNormals = function ( disregardNormals ) {
this.disregardNormals = disregardNormals;
};
Parser.prototype.setMaterials = function ( materials ) {
this.materials = Validator.verifyInput( materials, this.materials );
this.materials = Validator.verifyInput( this.materials, {} );
};
Parser.prototype.setCallbackBuilder = function ( callbackBuilder ) {
this.callbackBuilder = callbackBuilder;
if ( ! Validator.isValid( this.callbackBuilder ) ) throw 'Unable to run as no "builder" callback is set.';
};
Parser.prototype.setCallbackProgress = function ( callbackProgress ) {
this.callbackProgress = callbackProgress;
};
Parser.prototype.setLogConfig = function ( enabled, debug ) {
this.logger.setEnabled( enabled );
this.logger.setDebug( debug );
};
Parser.prototype.configure = function () {
this.rawMesh = new RawMesh( this.materialPerSmoothingGroup, this.useIndices, this.disregardNormals );
if ( this.logger.isEnabled() ) {
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\tuseIndices: ' + this.useIndices
+ '\n\tdisregardNormals: ' + this.disregardNormals
+ '\n\tcallbackBuilderName: ' + this.callbackBuilder.name
+ '\n\tcallbackProgressName: ' + this.callbackProgress.name;
this.logger.logInfo( printedConfig );
}
};
/**
* Parse the provided arraybuffer
* @memberOf Parser
*
* @param {Uint8Array} arrayBuffer OBJ data as Uint8Array
*/
Parser.prototype.parse = function ( arrayBuffer ) {
this.logger.logTimeStart( 'OBJLoader2.Parser.parse' );
this.configure();
var arrayBufferView = new Uint8Array( arrayBuffer );
var length = arrayBufferView.byteLength;
this.totalBytes = length;
var buffer = new Array( 128 );
var bufferPointer = 0;
var slashSpacePattern = new Array( 16 );
var slashSpacePatternPointer = 0;
var code;
var word = '';
var i = 0;
for ( ; i < length; i++ ) {
code = arrayBufferView[ i ];
switch ( code ) {
case Consts.CODE_SPACE:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
slashSpacePattern[ slashSpacePatternPointer++ ] = 0;
word = '';
break;
case Consts.CODE_SLASH:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
slashSpacePattern[ slashSpacePatternPointer++ ] = 1;
word = '';
break;
case Consts.CODE_LF:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
word = '';
this.processLine( buffer, bufferPointer, slashSpacePattern, slashSpacePatternPointer, i );
bufferPointer = 0;
slashSpacePatternPointer = 0;
break;
case Consts.CODE_CR:
break;
default:
word += String.fromCharCode( code );
break;
}
}
this.finalize( i );
this.logger.logTimeEnd( 'OBJLoader2.Parser.parse' );
};
/**
* Parse the provided text
* @memberOf Parser
*
* @param {string} text OBJ data as string
*/
Parser.prototype.parseText = function ( text ) {
this.logger.logTimeStart( 'OBJLoader2.Parser.parseText' );
this.configure();
var length = text.length;
this.totalBytes = length;
var buffer = new Array( 128 );
var bufferPointer = 0;
var slashSpacePattern = new Array( 16 );
var slashSpacePatternPointer = 0;
var char;
var word = '';
var i = 0;
for ( ; i < length; i++ ) {
char = text[ i ];
switch ( char ) {
case Consts.STRING_SPACE:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
slashSpacePattern[ slashSpacePatternPointer++ ] = 0;
word = '';
break;
case Consts.STRING_SLASH:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
slashSpacePattern[ slashSpacePatternPointer++ ] = 1;
word = '';
break;
case Consts.STRING_LF:
if ( word.length > 0 ) buffer[ bufferPointer++ ] = word;
word = '';
this.processLine( buffer, bufferPointer, slashSpacePattern, slashSpacePatternPointer, i );
bufferPointer = 0;
slashSpacePatternPointer = 0;
break;
case Consts.STRING_CR:
break;
default:
word += char;
}
}
this.finalize( i );
this.logger.logTimeEnd( 'OBJLoader2.Parser.parseText' );
};
Parser.prototype.processLine = function ( buffer, bufferPointer, slashSpacePattern, slashSpacePatternPointer, currentByte ) {
if ( bufferPointer < 1 ) return;
var countSlashes = function ( slashSpacePattern, slashSpacePatternPointer ) {
var slashesCount = 0;
for ( var i = 0; i < slashSpacePatternPointer; i++ ) {
slashesCount += slashSpacePattern[ i ];
}
return slashesCount;
};
var concatStringBuffer = function ( buffer, bufferPointer, slashSpacePattern ) {
var concatBuffer = '';
if ( bufferPointer === 2 ) {
concatBuffer = buffer[ 1 ];
} else {
var bufferLength = bufferPointer - 1;
for ( var i = 1; i < bufferLength; i++ ) {
concatBuffer += buffer[ i ] + ( slashSpacePattern[ i ] === 0 ? ' ' : '/' );
}
concatBuffer += buffer[ bufferLength ];
}
return concatBuffer;
};
var flushStringBuffer = function ( buffer, bufferPointer ) {
for ( var i = 0; i < bufferPointer; i++ ) {
buffer[ i ] = '';
}
};
switch ( buffer[ 0 ] ) {
case Consts.LINE_V:
this.rawMesh.pushVertex( buffer, bufferPointer > 4 );
break;
case Consts.LINE_VT:
this.rawMesh.pushUv( buffer );
break;
case Consts.LINE_VN:
this.rawMesh.pushNormal( buffer );
break;
case Consts.LINE_F:
this.rawMesh.processFaces( buffer, bufferPointer, countSlashes( slashSpacePattern, slashSpacePatternPointer ) );
break;
case Consts.LINE_L:
this.rawMesh.processLines( buffer, bufferPointer, countSlashes( slashSpacePattern, slashSpacePatternPointer ) );
break;
case Consts.LINE_S:
this.rawMesh.pushSmoothingGroup( buffer[ 1 ] );
flushStringBuffer( buffer, bufferPointer );
break;
case Consts.LINE_G:
// 'g' leads to creation of mesh if valid data (faces declaration was done before), otherwise only groupName gets set
this.processCompletedMesh( currentByte );
this.rawMesh.pushGroup( concatStringBuffer( buffer, bufferPointer, slashSpacePattern ) );
flushStringBuffer( buffer, bufferPointer );
break;
case Consts.LINE_O:
// 'o' is pure meta-information and does not result in creation of new meshes
this.rawMesh.pushObject( concatStringBuffer( buffer, bufferPointer, slashSpacePattern ) );
flushStringBuffer( buffer, bufferPointer );
break;
case Consts.LINE_MTLLIB:
this.rawMesh.pushMtllib( concatStringBuffer( buffer, bufferPointer, slashSpacePattern ) );
flushStringBuffer( buffer, bufferPointer );
break;
case Consts.LINE_USEMTL:
this.rawMesh.pushUsemtl( concatStringBuffer( buffer, bufferPointer, slashSpacePattern ) );
flushStringBuffer( buffer, bufferPointer );
break;
default:
break;
}
};
Parser.prototype.createRawMeshReport = function ( rawMesh , inputObjectCount ) {
var report = rawMesh.createReport( inputObjectCount );
return 'Input Object number: ' + inputObjectCount +
'\n\tObject name: ' + report.objectName +
'\n\tGroup name: ' + report.groupName +
'\n\tMtllib name: ' + report.mtllibName +
'\n\tVertex count: ' + report.vertexCount +
'\n\tNormal count: ' + report.normalCount +
'\n\tUV count: ' + report.uvCount +
'\n\tSmoothingGroup count: ' + report.smoothingGroupCount +
'\n\tMaterial count: ' + report.mtlCount +
'\n\tReal RawMeshSubGroup count: ' + report.subGroups;
};
Parser.prototype.processCompletedMesh = function ( currentByte ) {
var result = this.rawMesh.finalize();
if ( Validator.isValid( result ) ) {
if ( this.rawMesh.colors.length > 0 && this.rawMesh.colors.length !== this.rawMesh.vertices.length ) {
throw 'Vertex Colors were detected, but vertex count and color count do not match!';
}
if ( this.logger.isDebug() ) this.logger.logDebug( this.createRawMeshReport( this.rawMesh, this.inputObjectCount ) );
this.inputObjectCount++;
this.buildMesh( result, currentByte );
var progressBytesPercent = currentByte / this.totalBytes;
this.callbackProgress( 'Completed [o: ' + this.rawMesh.objectName + ' g:' + this.rawMesh.groupName + '] Total progress: ' + ( progressBytesPercent * 100 ).toFixed( 2 ) + '%', progressBytesPercent );
this.rawMesh.reset( this.rawMesh.smoothingGroup.splitMaterials );
return true;
} else {
return false;
}
};
Parser.prototype.finalize = function ( currentByte ) {
this.logger.logInfo( 'Global output object count: ' + this.outputObjectCount );
if ( this.processCompletedMesh( currentByte ) && this.logger.isEnabled() ) {
var parserFinalReport = 'Overall counts: ' +
'\n\tVertices: ' + this.counts.vertices +
'\n\tFaces: ' + this.counts.faces +
'\n\tMultiple definitions: ' + this.counts.doubleIndicesCount;
this.logger.logInfo( parserFinalReport );
}
};
/**
* RawObjectDescriptions are transformed to too intermediate format that is forwarded to the Builder.
* It is ensured that rawObjectDescriptions only contain objects with vertices (no need to check).
*
* @param result
*/
Parser.prototype.buildMesh = function ( result, currentByte ) {
var rawObjectDescriptions = result.subGroups;
var vertexFA = new Float32Array( result.absoluteVertexCount );
this.counts.vertices += result.absoluteVertexCount / 3;
this.counts.faces += result.faceCount;
this.counts.doubleIndicesCount += result.doubleIndicesCount;
var indexUA = ( result.absoluteIndexCount > 0 ) ? new Uint32Array( result.absoluteIndexCount ) : null;
var colorFA = ( result.absoluteColorCount > 0 ) ? new Float32Array( result.absoluteColorCount ) : null;
var normalFA = ( result.absoluteNormalCount > 0 ) ? new Float32Array( result.absoluteNormalCount ) : null;
var uvFA = ( result.absoluteUvCount > 0 ) ? new Float32Array( result.absoluteUvCount ) : null;
var haveVertexColors = Validator.isValid( colorFA );
var rawObjectDescription;
var materialNames = [];
var createMultiMaterial = ( rawObjectDescriptions.length > 1 );
var materialIndex = 0;
var materialIndexMapping = [];
var selectedMaterialIndex;
var materialGroup;
var materialGroups = [];
var vertexFAOffset = 0;
var indexUAOffset = 0;
var colorFAOffset = 0;
var normalFAOffset = 0;
var uvFAOffset = 0;
var materialGroupOffset = 0;
var materialGroupLength = 0;
var materialOrg, material, materialName, materialNameOrg;
for ( var oodIndex in rawObjectDescriptions ) {
if ( ! rawObjectDescriptions.hasOwnProperty( oodIndex ) ) continue;
rawObjectDescription = rawObjectDescriptions[ oodIndex ];
materialNameOrg = rawObjectDescription.materialName;
materialName = materialNameOrg + ( haveVertexColors ? '_vertexColor' : '' ) + ( rawObjectDescription.smoothingGroup === 0 ? '_flat' : '' );
materialOrg = this.materials[ materialNameOrg ];
material = this.materials[ materialName ];
// both original and derived names do not lead to an existing material => need to use a default material
if ( ! Validator.isValid( materialOrg ) && ! Validator.isValid( material ) ) {
var defaultMaterialName = haveVertexColors ? 'vertexColorMaterial' : 'defaultMaterial';
materialOrg = this.materials[ defaultMaterialName ];
this.logger.logWarn( 'object_group "' + rawObjectDescription.objectName + '_' +
rawObjectDescription.groupName + '" was defined with unresolvable material "' +
materialNameOrg + '"! Assigning "' + defaultMaterialName + '".' );
materialNameOrg = defaultMaterialName;
// if names are identical then there is no need for later manipulation
if ( materialNameOrg === materialName ) {
material = materialOrg;
materialName = defaultMaterialName;
}
}
if ( ! Validator.isValid( material ) ) {
var materialCloneInstructions = {
materialNameOrg: materialNameOrg,
materialName: materialName,
materialProperties: {
vertexColors: haveVertexColors ? 2 : 0,
flatShading: rawObjectDescription.smoothingGroup === 0
}
};
var payload = {
cmd: 'materialData',
materials: {
materialCloneInstructions: materialCloneInstructions
}
};
this.callbackBuilder( payload );
// fake entry for async; sync Parser always works on material references (Builder update directly visible here)
if ( this.useAsync ) this.materials[ materialName ] = materialCloneInstructions;
}
if ( createMultiMaterial ) {
// re-use material if already used before. Reduces materials array size and eliminates duplicates
selectedMaterialIndex = materialIndexMapping[ materialName ];
if ( ! selectedMaterialIndex ) {
selectedMaterialIndex = materialIndex;
materialIndexMapping[ materialName ] = materialIndex;
materialNames.push( materialName );
materialIndex++;
}
materialGroupLength = this.useIndices ? rawObjectDescription.indices.length : rawObjectDescription.vertices.length / 3;
materialGroup = {
start: materialGroupOffset,
count: materialGroupLength,
index: selectedMaterialIndex
};
materialGroups.push( materialGroup );
materialGroupOffset += materialGroupLength;
} else {
materialNames.push( materialName );
}
vertexFA.set( rawObjectDescription.vertices, vertexFAOffset );
vertexFAOffset += rawObjectDescription.vertices.length;
if ( indexUA ) {
indexUA.set( rawObjectDescription.indices, indexUAOffset );
indexUAOffset += rawObjectDescription.indices.length;
}
if ( colorFA ) {
colorFA.set( rawObjectDescription.colors, colorFAOffset );
colorFAOffset += rawObjectDescription.colors.length;
}
if ( normalFA ) {
normalFA.set( rawObjectDescription.normals, normalFAOffset );
normalFAOffset += rawObjectDescription.normals.length;
}
if ( uvFA ) {
uvFA.set( rawObjectDescription.uvs, uvFAOffset );
uvFAOffset += rawObjectDescription.uvs.length;
}
if ( this.logger.isDebug() ) {
var materialIndexLine = Validator.isValid( selectedMaterialIndex ) ? '\n\t\tmaterialIndex: ' + selectedMaterialIndex : '';
var createdReport = 'Output Object no.: ' + this.outputObjectCount +
'\n\t\tgroupName: ' + rawObjectDescription.groupName +
materialIndexLine +
'\n\t\tmaterialName: ' + rawObjectDescription.materialName +
'\n\t\tsmoothingGroup: ' + rawObjectDescription.smoothingGroup +
'\n\t\tobjectName: ' + rawObjectDescription.objectName +
'\n\t\t#vertices: ' + rawObjectDescription.vertices.length / 3 +
'\n\t\t#indices: ' + rawObjectDescription.indices.length +
'\n\t\t#colors: ' + rawObjectDescription.colors.length / 3 +
'\n\t\t#uvs: ' + rawObjectDescription.uvs.length / 2 +
'\n\t\t#normals: ' + rawObjectDescription.normals.length / 3;
this.logger.logDebug( createdReport );
}
}
this.outputObjectCount++;
this.callbackBuilder(
{
cmd: 'meshData',
progress: {
numericalValue: currentByte / this.totalBytes
},
params: {
meshName: result.name
},
materials: {
multiMaterial: createMultiMaterial,
materialNames: materialNames,
materialGroups: materialGroups
},
buffers: {
vertices: vertexFA,
indices: indexUA,
colors: colorFA,
normals: normalFA,
uvs: uvFA
}
},
[ vertexFA.buffer ],
Validator.isValid( indexUA ) ? [ indexUA.buffer ] : null,
Validator.isValid( colorFA ) ? [ colorFA.buffer ] : null,
Validator.isValid( normalFA ) ? [ normalFA.buffer ] : null,
Validator.isValid( uvFA ) ? [ uvFA.buffer ] : null
);
};
return Parser;
})();
/**
* {@link RawMesh} is only used by {@link Parser}.
* The user of OBJLoader2 does not need to care about this class.
* It is defined publicly for inclusion in web worker based OBJ loader ({@link THREE.OBJLoader2.WWOBJLoader2})
*/
var RawMesh = (function () {
function RawMesh( materialPerSmoothingGroup, useIndices, disregardNormals ) {
this.vertices = [];
this.colors = [];
this.normals = [];
this.uvs = [];
this.useIndices = useIndices === true;
this.disregardNormals = disregardNormals === true;
this.objectName = '';
this.groupName = '';
this.activeMtlName = '';
this.mtllibName = '';
this.reset( materialPerSmoothingGroup );
}
RawMesh.prototype.reset = function ( materialPerSmoothingGroup ) {
// faces are stored according combined index of group, material and smoothingGroup (0 or not)
this.subGroups = [];
this.subGroupInUse = null;
this.smoothingGroup = {
splitMaterials: materialPerSmoothingGroup === true,
normalized: -1,
real: -1
};
// this default index is required as it is possible to define faces without 'g' or 'usemtl'
this.pushSmoothingGroup( 1 );
this.doubleIndicesCount = 0;
this.faceCount = 0;
this.mtlCount = 0;
this.smoothingGroupCount = 0;
};
RawMesh.prototype.pushVertex = function ( buffer, haveVertexColors ) {
this.vertices.push( parseFloat( buffer[ 1 ] ) );
this.vertices.push( parseFloat( buffer[ 2 ] ) );
this.vertices.push( parseFloat( buffer[ 3 ] ) );
if ( haveVertexColors ) {
this.colors.push( parseFloat( buffer[ 4 ] ) );
this.colors.push( parseFloat( buffer[ 5 ] ) );
this.colors.push( parseFloat( buffer[ 6 ] ) );
}
};
RawMesh.prototype.pushUv = function ( buffer ) {
this.uvs.push( parseFloat( buffer[ 1 ] ) );
this.uvs.push( parseFloat( buffer[ 2 ] ) );
};
RawMesh.prototype.pushNormal = function ( buffer ) {
this.normals.push( parseFloat( buffer[ 1 ] ) );
this.normals.push( parseFloat( buffer[ 2 ] ) );
this.normals.push( parseFloat( buffer[ 3 ] ) );
};
RawMesh.prototype.pushGroup = function ( groupName ) {
this.groupName = Validator.verifyInput( groupName, '' );
};
RawMesh.prototype.pushObject = function ( objectName ) {
this.objectName = Validator.verifyInput( objectName, '' );
};
RawMesh.prototype.pushMtllib = function ( mtllibName ) {
this.mtllibName = Validator.verifyInput( mtllibName, '' );
};
RawMesh.prototype.pushUsemtl = function ( mtlName ) {
if ( this.activeMtlName === mtlName || ! Validator.isValid( mtlName ) ) return;
this.activeMtlName = mtlName;
this.mtlCount++;
this.verifyIndex();
};
RawMesh.prototype.pushSmoothingGroup = function ( smoothingGroup ) {
var smoothingGroupInt = parseInt( smoothingGroup );
if ( isNaN( smoothingGroupInt ) ) {
smoothingGroupInt = smoothingGroup === "off" ? 0 : 1;
}
var smoothCheck = this.smoothingGroup.normalized;
this.smoothingGroup.normalized = this.smoothingGroup.splitMaterials ? smoothingGroupInt : ( smoothingGroupInt === 0 ) ? 0 : 1;
this.smoothingGroup.real = smoothingGroupInt;
if ( smoothCheck !== smoothingGroupInt ) {
this.smoothingGroupCount++;
this.verifyIndex();
}
};
RawMesh.prototype.verifyIndex = function () {
var index = this.activeMtlName + '|' + this.smoothingGroup.normalized;
this.subGroupInUse = this.subGroups[ index ];
if ( ! Validator.isValid( this.subGroupInUse ) ) {
this.subGroupInUse = new RawMeshSubGroup( this.objectName, this.groupName, this.activeMtlName, this.smoothingGroup.normalized );
this.subGroups[ index ] = this.subGroupInUse;
}
};
RawMesh.prototype.processFaces = function ( buffer, bufferPointer, slashesCount ) {
var bufferLength = bufferPointer - 1;
var i, length;
// "f vertex ..."
if ( slashesCount === 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 ) {
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 ] );