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FBXLoader.js
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FBXLoader.js
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/**
* @author Kyle-Larson https://github.com/Kyle-Larson
* @author Takahiro https://github.com/takahirox
* @author Lewy Blue https://github.com/looeee
*
* Loader loads FBX file and generates Group representing FBX scene.
* Requires FBX file to be >= 7.0 and in ASCII or >= 6400 in Binary format
* Versions lower than this may load but will probably have errors
*
* Needs Support:
* Morph normals / blend shape normals
*
* FBX format references:
* https://wiki.blender.org/index.php/User:Mont29/Foundation/FBX_File_Structure
* http://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_index_html (C++ SDK reference)
*
* Binary format specification:
* https://code.blender.org/2013/08/fbx-binary-file-format-specification/
*/
THREE.FBXLoader = ( function () {
var fbxTree;
var connections;
var sceneGraph;
function FBXLoader( manager ) {
THREE.Loader.call( this, manager );
}
FBXLoader.prototype = Object.assign( Object.create( THREE.Loader.prototype ), {
constructor: FBXLoader,
load: function ( url, onLoad, onProgress, onError ) {
var self = this;
var path = ( self.path === '' ) ? THREE.LoaderUtils.extractUrlBase( url ) : self.path;
var loader = new THREE.FileLoader( this.manager );
loader.setPath( self.path );
loader.setResponseType( 'arraybuffer' );
loader.load( url, function ( buffer ) {
try {
onLoad( self.parse( buffer, path ) );
} catch ( error ) {
setTimeout( function () {
if ( onError ) onError( error );
self.manager.itemError( url );
}, 0 );
}
}, onProgress, onError );
},
parse: function ( FBXBuffer, path ) {
if ( isFbxFormatBinary( FBXBuffer ) ) {
fbxTree = new BinaryParser().parse( FBXBuffer );
} else {
var FBXText = convertArrayBufferToString( FBXBuffer );
if ( ! isFbxFormatASCII( FBXText ) ) {
throw new Error( 'THREE.FBXLoader: Unknown format.' );
}
if ( getFbxVersion( FBXText ) < 7000 ) {
throw new Error( 'THREE.FBXLoader: FBX version not supported, FileVersion: ' + getFbxVersion( FBXText ) );
}
fbxTree = new TextParser().parse( FBXText );
}
// console.log( fbxTree );
var textureLoader = new THREE.TextureLoader( this.manager ).setPath( this.resourcePath || path ).setCrossOrigin( this.crossOrigin );
return new FBXTreeParser( textureLoader, this.manager ).parse( fbxTree );
}
} );
// Parse the FBXTree object returned by the BinaryParser or TextParser and return a THREE.Group
function FBXTreeParser( textureLoader, manager ) {
this.textureLoader = textureLoader;
this.manager = manager;
}
FBXTreeParser.prototype = {
constructor: FBXTreeParser,
parse: function () {
connections = this.parseConnections();
var images = this.parseImages();
var textures = this.parseTextures( images );
var materials = this.parseMaterials( textures );
var deformers = this.parseDeformers();
var geometryMap = new GeometryParser().parse( deformers );
this.parseScene( deformers, geometryMap, materials );
return sceneGraph;
},
// Parses FBXTree.Connections which holds parent-child connections between objects (e.g. material -> texture, model->geometry )
// and details the connection type
parseConnections: function () {
var connectionMap = new Map();
if ( 'Connections' in fbxTree ) {
var rawConnections = fbxTree.Connections.connections;
rawConnections.forEach( function ( rawConnection ) {
var fromID = rawConnection[ 0 ];
var toID = rawConnection[ 1 ];
var relationship = rawConnection[ 2 ];
if ( ! connectionMap.has( fromID ) ) {
connectionMap.set( fromID, {
parents: [],
children: []
} );
}
var parentRelationship = { ID: toID, relationship: relationship };
connectionMap.get( fromID ).parents.push( parentRelationship );
if ( ! connectionMap.has( toID ) ) {
connectionMap.set( toID, {
parents: [],
children: []
} );
}
var childRelationship = { ID: fromID, relationship: relationship };
connectionMap.get( toID ).children.push( childRelationship );
} );
}
return connectionMap;
},
// Parse FBXTree.Objects.Video for embedded image data
// These images are connected to textures in FBXTree.Objects.Textures
// via FBXTree.Connections.
parseImages: function () {
var images = {};
var blobs = {};
if ( 'Video' in fbxTree.Objects ) {
var videoNodes = fbxTree.Objects.Video;
for ( var nodeID in videoNodes ) {
var videoNode = videoNodes[ nodeID ];
var id = parseInt( nodeID );
images[ id ] = videoNode.RelativeFilename || videoNode.Filename;
// raw image data is in videoNode.Content
if ( 'Content' in videoNode ) {
var arrayBufferContent = ( videoNode.Content instanceof ArrayBuffer ) && ( videoNode.Content.byteLength > 0 );
var base64Content = ( typeof videoNode.Content === 'string' ) && ( videoNode.Content !== '' );
if ( arrayBufferContent || base64Content ) {
var image = this.parseImage( videoNodes[ nodeID ] );
blobs[ videoNode.RelativeFilename || videoNode.Filename ] = image;
}
}
}
}
for ( var id in images ) {
var filename = images[ id ];
if ( blobs[ filename ] !== undefined ) images[ id ] = blobs[ filename ];
else images[ id ] = images[ id ].split( '\\' ).pop();
}
return images;
},
// Parse embedded image data in FBXTree.Video.Content
parseImage: function ( videoNode ) {
var content = videoNode.Content;
var fileName = videoNode.RelativeFilename || videoNode.Filename;
var extension = fileName.slice( fileName.lastIndexOf( '.' ) + 1 ).toLowerCase();
var type;
switch ( extension ) {
case 'bmp':
type = 'image/bmp';
break;
case 'jpg':
case 'jpeg':
type = 'image/jpeg';
break;
case 'png':
type = 'image/png';
break;
case 'tif':
type = 'image/tiff';
break;
case 'tga':
if ( this.manager.getHandler( '.tga' ) === null ) {
console.warn( 'FBXLoader: TGA loader not found, skipping ', fileName );
}
type = 'image/tga';
break;
default:
console.warn( 'FBXLoader: Image type "' + extension + '" is not supported.' );
return;
}
if ( typeof content === 'string' ) { // ASCII format
return 'data:' + type + ';base64,' + content;
} else { // Binary Format
var array = new Uint8Array( content );
return window.URL.createObjectURL( new Blob( [ array ], { type: type } ) );
}
},
// Parse nodes in FBXTree.Objects.Texture
// These contain details such as UV scaling, cropping, rotation etc and are connected
// to images in FBXTree.Objects.Video
parseTextures: function ( images ) {
var textureMap = new Map();
if ( 'Texture' in fbxTree.Objects ) {
var textureNodes = fbxTree.Objects.Texture;
for ( var nodeID in textureNodes ) {
var texture = this.parseTexture( textureNodes[ nodeID ], images );
textureMap.set( parseInt( nodeID ), texture );
}
}
return textureMap;
},
// Parse individual node in FBXTree.Objects.Texture
parseTexture: function ( textureNode, images ) {
var texture = this.loadTexture( textureNode, images );
texture.ID = textureNode.id;
texture.name = textureNode.attrName;
var wrapModeU = textureNode.WrapModeU;
var wrapModeV = textureNode.WrapModeV;
var valueU = wrapModeU !== undefined ? wrapModeU.value : 0;
var valueV = wrapModeV !== undefined ? wrapModeV.value : 0;
// http://download.autodesk.com/us/fbx/SDKdocs/FBX_SDK_Help/files/fbxsdkref/class_k_fbx_texture.html#889640e63e2e681259ea81061b85143a
// 0: repeat(default), 1: clamp
texture.wrapS = valueU === 0 ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
texture.wrapT = valueV === 0 ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
if ( 'Scaling' in textureNode ) {
var values = textureNode.Scaling.value;
texture.repeat.x = values[ 0 ];
texture.repeat.y = values[ 1 ];
}
return texture;
},
// load a texture specified as a blob or data URI, or via an external URL using THREE.TextureLoader
loadTexture: function ( textureNode, images ) {
var fileName;
var currentPath = this.textureLoader.path;
var children = connections.get( textureNode.id ).children;
if ( children !== undefined && children.length > 0 && images[ children[ 0 ].ID ] !== undefined ) {
fileName = images[ children[ 0 ].ID ];
if ( fileName.indexOf( 'blob:' ) === 0 || fileName.indexOf( 'data:' ) === 0 ) {
this.textureLoader.setPath( undefined );
}
}
var texture;
var extension = textureNode.FileName.slice( - 3 ).toLowerCase();
if ( extension === 'tga' ) {
var loader = this.manager.getHandler( '.tga' );
if ( loader === null ) {
console.warn( 'FBXLoader: TGA loader not found, creating placeholder texture for', textureNode.RelativeFilename );
texture = new THREE.Texture();
} else {
texture = loader.load( fileName );
}
} else if ( extension === 'psd' ) {
console.warn( 'FBXLoader: PSD textures are not supported, creating placeholder texture for', textureNode.RelativeFilename );
texture = new THREE.Texture();
} else {
texture = this.textureLoader.load( fileName );
}
this.textureLoader.setPath( currentPath );
return texture;
},
// Parse nodes in FBXTree.Objects.Material
parseMaterials: function ( textureMap ) {
var materialMap = new Map();
if ( 'Material' in fbxTree.Objects ) {
var materialNodes = fbxTree.Objects.Material;
for ( var nodeID in materialNodes ) {
var material = this.parseMaterial( materialNodes[ nodeID ], textureMap );
if ( material !== null ) materialMap.set( parseInt( nodeID ), material );
}
}
return materialMap;
},
// Parse single node in FBXTree.Objects.Material
// Materials are connected to texture maps in FBXTree.Objects.Textures
// FBX format currently only supports Lambert and Phong shading models
parseMaterial: function ( materialNode, textureMap ) {
var ID = materialNode.id;
var name = materialNode.attrName;
var type = materialNode.ShadingModel;
// Case where FBX wraps shading model in property object.
if ( typeof type === 'object' ) {
type = type.value;
}
// Ignore unused materials which don't have any connections.
if ( ! connections.has( ID ) ) return null;
var parameters = this.parseParameters( materialNode, textureMap, ID );
var material;
switch ( type.toLowerCase() ) {
case 'phong':
material = new THREE.MeshPhongMaterial();
break;
case 'lambert':
material = new THREE.MeshLambertMaterial();
break;
default:
console.warn( 'THREE.FBXLoader: unknown material type "%s". Defaulting to MeshPhongMaterial.', type );
material = new THREE.MeshPhongMaterial();
break;
}
material.setValues( parameters );
material.name = name;
return material;
},
// Parse FBX material and return parameters suitable for a three.js material
// Also parse the texture map and return any textures associated with the material
parseParameters: function ( materialNode, textureMap, ID ) {
var parameters = {};
if ( materialNode.BumpFactor ) {
parameters.bumpScale = materialNode.BumpFactor.value;
}
if ( materialNode.Diffuse ) {
parameters.color = new THREE.Color().fromArray( materialNode.Diffuse.value );
} else if ( materialNode.DiffuseColor && materialNode.DiffuseColor.type === 'Color' ) {
// The blender exporter exports diffuse here instead of in materialNode.Diffuse
parameters.color = new THREE.Color().fromArray( materialNode.DiffuseColor.value );
}
if ( materialNode.DisplacementFactor ) {
parameters.displacementScale = materialNode.DisplacementFactor.value;
}
if ( materialNode.Emissive ) {
parameters.emissive = new THREE.Color().fromArray( materialNode.Emissive.value );
} else if ( materialNode.EmissiveColor && materialNode.EmissiveColor.type === 'Color' ) {
// The blender exporter exports emissive color here instead of in materialNode.Emissive
parameters.emissive = new THREE.Color().fromArray( materialNode.EmissiveColor.value );
}
if ( materialNode.EmissiveFactor ) {
parameters.emissiveIntensity = parseFloat( materialNode.EmissiveFactor.value );
}
if ( materialNode.Opacity ) {
parameters.opacity = parseFloat( materialNode.Opacity.value );
}
if ( parameters.opacity < 1.0 ) {
parameters.transparent = true;
}
if ( materialNode.ReflectionFactor ) {
parameters.reflectivity = materialNode.ReflectionFactor.value;
}
if ( materialNode.Shininess ) {
parameters.shininess = materialNode.Shininess.value;
}
if ( materialNode.Specular ) {
parameters.specular = new THREE.Color().fromArray( materialNode.Specular.value );
} else if ( materialNode.SpecularColor && materialNode.SpecularColor.type === 'Color' ) {
// The blender exporter exports specular color here instead of in materialNode.Specular
parameters.specular = new THREE.Color().fromArray( materialNode.SpecularColor.value );
}
var self = this;
connections.get( ID ).children.forEach( function ( child ) {
var type = child.relationship;
switch ( type ) {
case 'Bump':
parameters.bumpMap = self.getTexture( textureMap, child.ID );
break;
case 'Maya|TEX_ao_map':
parameters.aoMap = self.getTexture( textureMap, child.ID );
break;
case 'DiffuseColor':
case 'Maya|TEX_color_map':
parameters.map = self.getTexture( textureMap, child.ID );
parameters.map.encoding = THREE.sRGBEncoding;
break;
case 'DisplacementColor':
parameters.displacementMap = self.getTexture( textureMap, child.ID );
break;
case 'EmissiveColor':
parameters.emissiveMap = self.getTexture( textureMap, child.ID );
parameters.emissiveMap.encoding = THREE.sRGBEncoding;
break;
case 'NormalMap':
case 'Maya|TEX_normal_map':
parameters.normalMap = self.getTexture( textureMap, child.ID );
break;
case 'ReflectionColor':
parameters.envMap = self.getTexture( textureMap, child.ID );
parameters.envMap.mapping = THREE.EquirectangularReflectionMapping;
parameters.envMap.encoding = THREE.sRGBEncoding;
break;
case 'SpecularColor':
parameters.specularMap = self.getTexture( textureMap, child.ID );
parameters.specularMap.encoding = THREE.sRGBEncoding;
break;
case 'TransparentColor':
parameters.alphaMap = self.getTexture( textureMap, child.ID );
parameters.transparent = true;
break;
case 'AmbientColor':
case 'ShininessExponent': // AKA glossiness map
case 'SpecularFactor': // AKA specularLevel
case 'VectorDisplacementColor': // NOTE: Seems to be a copy of DisplacementColor
default:
console.warn( 'THREE.FBXLoader: %s map is not supported in three.js, skipping texture.', type );
break;
}
} );
return parameters;
},
// get a texture from the textureMap for use by a material.
getTexture: function ( textureMap, id ) {
// if the texture is a layered texture, just use the first layer and issue a warning
if ( 'LayeredTexture' in fbxTree.Objects && id in fbxTree.Objects.LayeredTexture ) {
console.warn( 'THREE.FBXLoader: layered textures are not supported in three.js. Discarding all but first layer.' );
id = connections.get( id ).children[ 0 ].ID;
}
return textureMap.get( id );
},
// Parse nodes in FBXTree.Objects.Deformer
// Deformer node can contain skinning or Vertex Cache animation data, however only skinning is supported here
// Generates map of Skeleton-like objects for use later when generating and binding skeletons.
parseDeformers: function () {
var skeletons = {};
var morphTargets = {};
if ( 'Deformer' in fbxTree.Objects ) {
var DeformerNodes = fbxTree.Objects.Deformer;
for ( var nodeID in DeformerNodes ) {
var deformerNode = DeformerNodes[ nodeID ];
var relationships = connections.get( parseInt( nodeID ) );
if ( deformerNode.attrType === 'Skin' ) {
var skeleton = this.parseSkeleton( relationships, DeformerNodes );
skeleton.ID = nodeID;
if ( relationships.parents.length > 1 ) console.warn( 'THREE.FBXLoader: skeleton attached to more than one geometry is not supported.' );
skeleton.geometryID = relationships.parents[ 0 ].ID;
skeletons[ nodeID ] = skeleton;
} else if ( deformerNode.attrType === 'BlendShape' ) {
var morphTarget = {
id: nodeID,
};
morphTarget.rawTargets = this.parseMorphTargets( relationships, DeformerNodes );
morphTarget.id = nodeID;
if ( relationships.parents.length > 1 ) console.warn( 'THREE.FBXLoader: morph target attached to more than one geometry is not supported.' );
morphTargets[ nodeID ] = morphTarget;
}
}
}
return {
skeletons: skeletons,
morphTargets: morphTargets,
};
},
// Parse single nodes in FBXTree.Objects.Deformer
// The top level skeleton node has type 'Skin' and sub nodes have type 'Cluster'
// Each skin node represents a skeleton and each cluster node represents a bone
parseSkeleton: function ( relationships, deformerNodes ) {
var rawBones = [];
relationships.children.forEach( function ( child ) {
var boneNode = deformerNodes[ child.ID ];
if ( boneNode.attrType !== 'Cluster' ) return;
var rawBone = {
ID: child.ID,
indices: [],
weights: [],
transformLink: new THREE.Matrix4().fromArray( boneNode.TransformLink.a ),
// transform: new THREE.Matrix4().fromArray( boneNode.Transform.a ),
// linkMode: boneNode.Mode,
};
if ( 'Indexes' in boneNode ) {
rawBone.indices = boneNode.Indexes.a;
rawBone.weights = boneNode.Weights.a;
}
rawBones.push( rawBone );
} );
return {
rawBones: rawBones,
bones: []
};
},
// The top level morph deformer node has type "BlendShape" and sub nodes have type "BlendShapeChannel"
parseMorphTargets: function ( relationships, deformerNodes ) {
var rawMorphTargets = [];
for ( var i = 0; i < relationships.children.length; i ++ ) {
var child = relationships.children[ i ];
var morphTargetNode = deformerNodes[ child.ID ];
var rawMorphTarget = {
name: morphTargetNode.attrName,
initialWeight: morphTargetNode.DeformPercent,
id: morphTargetNode.id,
fullWeights: morphTargetNode.FullWeights.a
};
if ( morphTargetNode.attrType !== 'BlendShapeChannel' ) return;
rawMorphTarget.geoID = connections.get( parseInt( child.ID ) ).children.filter( function ( child ) {
return child.relationship === undefined;
} )[ 0 ].ID;
rawMorphTargets.push( rawMorphTarget );
}
return rawMorphTargets;
},
// create the main THREE.Group() to be returned by the loader
parseScene: function ( deformers, geometryMap, materialMap ) {
sceneGraph = new THREE.Group();
var modelMap = this.parseModels( deformers.skeletons, geometryMap, materialMap );
var modelNodes = fbxTree.Objects.Model;
var self = this;
modelMap.forEach( function ( model ) {
var modelNode = modelNodes[ model.ID ];
self.setLookAtProperties( model, modelNode );
var parentConnections = connections.get( model.ID ).parents;
parentConnections.forEach( function ( connection ) {
var parent = modelMap.get( connection.ID );
if ( parent !== undefined ) parent.add( model );
} );
if ( model.parent === null ) {
sceneGraph.add( model );
}
} );
this.bindSkeleton( deformers.skeletons, geometryMap, modelMap );
this.createAmbientLight();
this.setupMorphMaterials();
sceneGraph.traverse( function ( node ) {
if ( node.userData.transformData ) {
if ( node.parent ) node.userData.transformData.parentMatrixWorld = node.parent.matrix;
var transform = generateTransform( node.userData.transformData );
node.applyMatrix( transform );
}
} );
var animations = new AnimationParser().parse();
// if all the models where already combined in a single group, just return that
if ( sceneGraph.children.length === 1 && sceneGraph.children[ 0 ].isGroup ) {
sceneGraph.children[ 0 ].animations = animations;
sceneGraph = sceneGraph.children[ 0 ];
}
sceneGraph.animations = animations;
},
// parse nodes in FBXTree.Objects.Model
parseModels: function ( skeletons, geometryMap, materialMap ) {
var modelMap = new Map();
var modelNodes = fbxTree.Objects.Model;
for ( var nodeID in modelNodes ) {
var id = parseInt( nodeID );
var node = modelNodes[ nodeID ];
var relationships = connections.get( id );
var model = this.buildSkeleton( relationships, skeletons, id, node.attrName );
if ( ! model ) {
switch ( node.attrType ) {
case 'Camera':
model = this.createCamera( relationships );
break;
case 'Light':
model = this.createLight( relationships );
break;
case 'Mesh':
model = this.createMesh( relationships, geometryMap, materialMap );
break;
case 'NurbsCurve':
model = this.createCurve( relationships, geometryMap );
break;
case 'LimbNode':
case 'Root':
model = new THREE.Bone();
break;
case 'Null':
default:
model = new THREE.Group();
break;
}
model.name = node.attrName ? THREE.PropertyBinding.sanitizeNodeName( node.attrName ) : '';
model.ID = id;
}
this.getTransformData( model, node );
modelMap.set( id, model );
}
return modelMap;
},
buildSkeleton: function ( relationships, skeletons, id, name ) {
var bone = null;
relationships.parents.forEach( function ( parent ) {
for ( var ID in skeletons ) {
var skeleton = skeletons[ ID ];
skeleton.rawBones.forEach( function ( rawBone, i ) {
if ( rawBone.ID === parent.ID ) {
var subBone = bone;
bone = new THREE.Bone();
bone.matrixWorld.copy( rawBone.transformLink );
// set name and id here - otherwise in cases where "subBone" is created it will not have a name / id
bone.name = name ? THREE.PropertyBinding.sanitizeNodeName( name ) : '';
bone.ID = id;
skeleton.bones[ i ] = bone;
// In cases where a bone is shared between multiple meshes
// duplicate the bone here and and it as a child of the first bone
if ( subBone !== null ) {
// bone.add( subBone );
}
}
} );
}
} );
return bone;
},
// create a THREE.PerspectiveCamera or THREE.OrthographicCamera
createCamera: function ( relationships ) {
var model;
var cameraAttribute;
relationships.children.forEach( function ( child ) {
var attr = fbxTree.Objects.NodeAttribute[ child.ID ];
if ( attr !== undefined ) {
cameraAttribute = attr;
}
} );
if ( cameraAttribute === undefined ) {
model = new THREE.Object3D();
} else {
var type = 0;
if ( cameraAttribute.CameraProjectionType !== undefined && cameraAttribute.CameraProjectionType.value === 1 ) {
type = 1;
}
var nearClippingPlane = 1;
if ( cameraAttribute.NearPlane !== undefined ) {
nearClippingPlane = cameraAttribute.NearPlane.value / 1000;
}
var farClippingPlane = 1000;
if ( cameraAttribute.FarPlane !== undefined ) {
farClippingPlane = cameraAttribute.FarPlane.value / 1000;
}
var width = window.innerWidth;
var height = window.innerHeight;
if ( cameraAttribute.AspectWidth !== undefined && cameraAttribute.AspectHeight !== undefined ) {
width = cameraAttribute.AspectWidth.value;
height = cameraAttribute.AspectHeight.value;