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KAOKA Daisuke
/**
* @author Rich Tibbett / https://github.com/richtr
* @author mrdoob / http://mrdoob.com/
* @author Tony Parisi / http://www.tonyparisi.com/
* @author Takahiro / https://github.com/takahirox
* @author Don McCurdy / https://www.donmccurdy.com
*/
THREE.GLTF2Loader = ( function () {
function GLTF2Loader( manager ) {
this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
}
GLTF2Loader.prototype = {
constructor: GLTF2Loader,
load: function ( url, onLoad, onProgress, onError ) {
var scope = this;
var path = this.path && ( typeof this.path === "string" ) ? this.path : THREE.Loader.prototype.extractUrlBase( url );
var loader = new THREE.FileLoader( scope.manager );
loader.setResponseType( 'arraybuffer' );
loader.load( url, function ( data ) {
scope.parse( data, onLoad, path );
}, onProgress, onError );
},
setCrossOrigin: function ( value ) {
this.crossOrigin = value;
},
setPath: function ( value ) {
this.path = value;
},
parse: function ( data, callback, path ) {
var content;
var extensions = {};
var magic = convertUint8ArrayToString( new Uint8Array( data, 0, 4 ) );
if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {
extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );
content = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content;
} else {
content = convertUint8ArrayToString( new Uint8Array( data ) );
}
var json = JSON.parse( content );
if ( json.extensionsUsed ) {
if( json.extensionsUsed.indexOf( EXTENSIONS.KHR_LIGHTS ) >= 0 ) {
extensions[ EXTENSIONS.KHR_LIGHTS ] = new GLTFLightsExtension( json );
}
if( json.extensionsUsed.indexOf( EXTENSIONS.KHR_MATERIALS_COMMON ) >= 0 ) {
extensions[ EXTENSIONS.KHR_MATERIALS_COMMON ] = new GLTFMaterialsCommonExtension( json );
}
if( json.extensionsUsed.indexOf( EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ) >= 0 ) {
extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] = new GLTFMaterialsPbrSpecularGlossinessExtension();
}
if ( json.extensionsUsed.indexOf( EXTENSIONS.KHR_TECHNIQUE_WEBGL ) >= 0 ) {
extensions[ EXTENSIONS.KHR_TECHNIQUE_WEBGL ] = new GLTFTechniqueWebglExtension( json );
}
}
console.time( 'GLTF2Loader' );
var parser = new GLTFParser( json, extensions, {
path: path || this.path,
crossOrigin: this.crossOrigin
} );
parser.parse( function ( scene, scenes, cameras, animations ) {
console.timeEnd( 'GLTF2Loader' );
var glTF = {
"scene": scene,
"scenes": scenes,
"cameras": cameras,
"animations": animations
};
callback( glTF );
} );
}
};
/* GLTFREGISTRY */
function GLTFRegistry() {
var objects = {};
return {
get: function ( key ) {
return objects[ key ];
},
add: function ( key, object ) {
objects[ key ] = object;
},
remove: function ( key ) {
delete objects[ key ];
},
removeAll: function () {
objects = {};
},
update: function ( scene, camera ) {
for ( var name in objects ) {
var object = objects[ name ];
if ( object.update ) {
object.update( scene, camera );
}
}
}
};
}
/* GLTFSHADER */
function GLTFShader( targetNode, allNodes ) {
var boundUniforms = {};
// bind each uniform to its source node
var uniforms = targetNode.material.uniforms;
for ( var uniformId in uniforms ) {
var uniform = uniforms[ uniformId ];
if ( uniform.semantic ) {
var sourceNodeRef = uniform.node;
var sourceNode = targetNode;
if ( sourceNodeRef ) {
sourceNode = allNodes[ sourceNodeRef ];
}
boundUniforms[ uniformId ] = {
semantic: uniform.semantic,
sourceNode: sourceNode,
targetNode: targetNode,
uniform: uniform
};
}
}
this.boundUniforms = boundUniforms;
this._m4 = new THREE.Matrix4();
}
// Update - update all the uniform values
GLTFShader.prototype.update = function ( scene, camera ) {
var boundUniforms = this.boundUniforms;
for ( var name in boundUniforms ) {
var boundUniform = boundUniforms[ name ];
switch ( boundUniform.semantic ) {
case "MODELVIEW":
var m4 = boundUniform.uniform.value;
m4.multiplyMatrices( camera.matrixWorldInverse, boundUniform.sourceNode.matrixWorld );
break;
case "MODELVIEWINVERSETRANSPOSE":
var m3 = boundUniform.uniform.value;
this._m4.multiplyMatrices( camera.matrixWorldInverse, boundUniform.sourceNode.matrixWorld );
m3.getNormalMatrix( this._m4 );
break;
case "PROJECTION":
var m4 = boundUniform.uniform.value;
m4.copy( camera.projectionMatrix );
break;
case "JOINTMATRIX":
var m4v = boundUniform.uniform.value;
for ( var mi = 0; mi < m4v.length; mi ++ ) {
// So it goes like this:
// SkinnedMesh world matrix is already baked into MODELVIEW;
// transform joints to local space,
// then transform using joint's inverse
m4v[ mi ]
.getInverse( boundUniform.sourceNode.matrixWorld )
.multiply( boundUniform.targetNode.skeleton.bones[ mi ].matrixWorld )
.multiply( boundUniform.targetNode.skeleton.boneInverses[ mi ] )
.multiply( boundUniform.targetNode.bindMatrix );
}
break;
default :
console.warn( "Unhandled shader semantic: " + boundUniform.semantic );
break;
}
}
};
/*********************************/
/********** EXTENSIONS ***********/
/*********************************/
var EXTENSIONS = {
KHR_BINARY_GLTF: 'KHR_binary_glTF',
KHR_LIGHTS: 'KHR_lights',
KHR_MATERIALS_COMMON: 'KHR_materials_common',
KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
KHR_TECHNIQUE_WEBGL: 'KHR_technique_webgl',
};
/**
* Lights Extension
*
* Specification: PENDING
*/
function GLTFLightsExtension( json ) {
this.name = EXTENSIONS.KHR_LIGHTS;
this.lights = {};
var extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_LIGHTS ] ) || {};
var lights = extension.lights || {};
for ( var lightId in lights ) {
var light = lights[ lightId ];
var lightNode;
var color = new THREE.Color().fromArray( light.color );
switch ( light.type ) {
case 'directional':
lightNode = new THREE.DirectionalLight( color );
lightNode.position.set( 0, 0, 1 );
break;
case 'point':
lightNode = new THREE.PointLight( color );
break;
case 'spot':
lightNode = new THREE.SpotLight( color );
lightNode.position.set( 0, 0, 1 );
break;
case 'ambient':
lightNode = new THREE.AmbientLight( color );
break;
}
if ( lightNode ) {
lightNode.name = light.name || ( 'light_' + lightId );
this.lights[ lightId ] = lightNode;
}
}
}
/**
* Common Materials Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/Khronos/KHR_materials_common
*/
function GLTFMaterialsCommonExtension( json ) {
this.name = EXTENSIONS.KHR_MATERIALS_COMMON;
}
GLTFMaterialsCommonExtension.prototype.getMaterialType = function ( material ) {
var khrMaterial = material.extensions[ this.name ];
switch ( khrMaterial.type ) {
case 'commonBlinn' :
case 'commonPhong' :
return THREE.MeshPhongMaterial;
case 'commonLambert' :
return THREE.MeshLambertMaterial;
case 'commonConstant' :
default :
return THREE.MeshBasicMaterial;
}
};
GLTFMaterialsCommonExtension.prototype.extendParams = function ( materialParams, material, dependencies ) {
var khrMaterial = material.extensions[ this.name ];
var keys = [];
// TODO: Currently ignored: 'ambientFactor', 'ambientTexture'
switch ( khrMaterial.type ) {
case 'commonBlinn' :
case 'commonPhong' :
keys.push( 'diffuseFactor', 'diffuseTexture', 'specularFactor', 'specularTexture', 'shininessFactor' );
break;
case 'commonLambert' :
keys.push( 'diffuseFactor', 'diffuseTexture' );
break;
case 'commonConstant' :
default :
break;
}
var materialValues = {};
keys.forEach( function( v ) {
if ( khrMaterial[ v ] !== undefined ) materialValues[ v ] = khrMaterial[ v ];
} );
if ( materialValues.diffuseFactor !== undefined ) {
materialParams.color = new THREE.Color().fromArray( materialValues.diffuseFactor );
}
if ( materialValues.diffuseTexture !== undefined ) {
materialParams.map = dependencies.textures[ materialValues.diffuseTexture.index ];
}
if ( materialValues.specularFactor !== undefined ) {
materialParams.specular = new THREE.Color().fromArray( materialValues.specularFactor );
}
if ( materialValues.specularTexture !== undefined ) {
materialParams.specularMap = dependencies.textures[ materialValues.specularTexture.index ];
}
if ( materialValues.shininessFactor !== undefined ) {
materialParams.shininess = materialValues.shininessFactor;
}
};
/* BINARY EXTENSION */
var BINARY_EXTENSION_BUFFER_NAME = 'binary_glTF';
var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
var BINARY_EXTENSION_HEADER_LENGTH = 12;
var BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };
function GLTFBinaryExtension( data ) {
this.name = EXTENSIONS.KHR_BINARY_GLTF;
this.content = null;
this.body = null;
var headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH );
this.header = {
magic: convertUint8ArrayToString( new Uint8Array( data.slice( 0, 4 ) ) ),
version: headerView.getUint32( 4, true ),
length: headerView.getUint32( 8, true )
};
if ( this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC ) {
throw new Error( 'GLTF2Loader: Unsupported glTF-Binary header.' );
} else if ( this.header.version < 2.0 ) {
throw new Error( 'GLTF2Loader: Legacy binary file detected. Use GLTFLoader instead.' );
}
var chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );
var chunkIndex = 0;
while ( chunkIndex < chunkView.byteLength ) {
var chunkLength = chunkView.getUint32( chunkIndex, true );
chunkIndex += 4;
var chunkType = chunkView.getUint32( chunkIndex, true );
chunkIndex += 4;
if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) {
var contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength );
this.content = convertUint8ArrayToString( contentArray );
} else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) {
var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
this.body = data.slice( byteOffset, byteOffset + chunkLength );
}
// Clients must ignore chunks with unknown types.
chunkIndex += chunkLength;
}
if ( this.content === null ) {
throw new Error( 'GLTF2Loader: JSON content not found.' );
}
}
/**
* WebGL Technique Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/Khronos/KHR_technique_webgl
*/
function GLTFTechniqueWebglExtension( json ) {
this.name = EXTENSIONS.KHR_TECHNIQUE_WEBGL;
var extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_TECHNIQUE_WEBGL ] ) || {};
this.techniques = extension.techniques || {};
this.programs = extension.programs || {};
this.shaders = extension.shaders || {};
}
GLTFTechniqueWebglExtension.prototype.getMaterialType = function () {
return DeferredShaderMaterial;
};
GLTFTechniqueWebglExtension.prototype.extendParams = function ( materialParams, material, dependencies ) {
var extension = material[ EXTENSIONS.KHR_TECHNIQUE_WEBGL ];
var technique = dependencies.techniques[ extension.technique ];
materialParams.uniforms = {};
var program = dependencies.programs[ technique.program ];
if ( program === undefined ) {
return;
}
materialParams.fragmentShader = dependencies.shaders[ program.fragmentShader ];
if ( ! materialParams.fragmentShader ) {
throw new Error( 'ERROR: Missing fragment shader definition:', program.fragmentShader );
}
var vertexShader = dependencies.shaders[ program.vertexShader ];
if ( ! vertexShader ) {
throw new Error( 'ERROR: Missing vertex shader definition:', program.vertexShader );
}
// IMPORTANT: FIX VERTEX SHADER ATTRIBUTE DEFINITIONS
materialParams.vertexShader = replaceTHREEShaderAttributes( vertexShader, technique );
var uniforms = technique.uniforms;
for ( var uniformId in uniforms ) {
var pname = uniforms[ uniformId ];
var shaderParam = technique.parameters[ pname ];
var ptype = shaderParam.type;
if ( WEBGL_TYPE[ ptype ] ) {
var pcount = shaderParam.count;
var value;
if ( material.values !== undefined ) value = material.values[ pname ];
var uvalue = new WEBGL_TYPE[ ptype ]();
var usemantic = shaderParam.semantic;
var unode = shaderParam.node;
switch ( ptype ) {
case WEBGL_CONSTANTS.FLOAT:
uvalue = shaderParam.value;
if ( pname === 'transparency' ) {
materialParams.transparent = true;
}
if ( value !== undefined ) {
uvalue = value;
}
break;
case WEBGL_CONSTANTS.FLOAT_VEC2:
case WEBGL_CONSTANTS.FLOAT_VEC3:
case WEBGL_CONSTANTS.FLOAT_VEC4:
case WEBGL_CONSTANTS.FLOAT_MAT3:
if ( shaderParam && shaderParam.value ) {
uvalue.fromArray( shaderParam.value );
}
if ( value ) {
uvalue.fromArray( value );
}
break;
case WEBGL_CONSTANTS.FLOAT_MAT2:
// what to do?
console.warn( 'FLOAT_MAT2 is not a supported uniform type' );
break;
case WEBGL_CONSTANTS.FLOAT_MAT4:
if ( pcount ) {
uvalue = new Array( pcount );
for ( var mi = 0; mi < pcount; mi ++ ) {
uvalue[ mi ] = new WEBGL_TYPE[ ptype ]();
}
if ( shaderParam && shaderParam.value ) {
var m4v = shaderParam.value;
uvalue.fromArray( m4v );
}
if ( value ) {
uvalue.fromArray( value );
}
} else {
if ( shaderParam && shaderParam.value ) {
var m4 = shaderParam.value;
uvalue.fromArray( m4 );
}
if ( value ) {
uvalue.fromArray( value );
}
}
break;
case WEBGL_CONSTANTS.SAMPLER_2D:
if ( value !== undefined ) {
uvalue = dependencies.textures[ value ];
} else if ( shaderParam.value !== undefined ) {
uvalue = dependencies.textures[ shaderParam.value ];
} else {
uvalue = null;
}
break;
}
materialParams.uniforms[ uniformId ] = {
value: uvalue,
semantic: usemantic,
node: unode
};
} else {
throw new Error( 'Unknown shader uniform param type: ' + ptype );
}
}
var states = technique.states || {};
var enables = states.enable || [];
var functions = states.functions || {};
var enableCullFace = false;
var enableDepthTest = false;
var enableBlend = false;
for ( var i = 0, il = enables.length; i < il; i ++ ) {
var enable = enables[ i ];
switch ( STATES_ENABLES[ enable ] ) {
case 'CULL_FACE':
enableCullFace = true;
break;
case 'DEPTH_TEST':
enableDepthTest = true;
break;
case 'BLEND':
enableBlend = true;
break;
// TODO: implement
case 'SCISSOR_TEST':
case 'POLYGON_OFFSET_FILL':
case 'SAMPLE_ALPHA_TO_COVERAGE':
break;
default:
throw new Error( "Unknown technique.states.enable: " + enable );
}
}
if ( enableCullFace ) {
materialParams.side = functions.cullFace !== undefined ? WEBGL_SIDES[ functions.cullFace ] : THREE.FrontSide;
} else {
materialParams.side = THREE.DoubleSide;
}
materialParams.depthTest = enableDepthTest;
materialParams.depthFunc = functions.depthFunc !== undefined ? WEBGL_DEPTH_FUNCS[ functions.depthFunc ] : THREE.LessDepth;
materialParams.depthWrite = functions.depthMask !== undefined ? functions.depthMask[ 0 ] : true;
materialParams.blending = enableBlend ? THREE.CustomBlending : THREE.NoBlending;
materialParams.transparent = enableBlend;
var blendEquationSeparate = functions.blendEquationSeparate;
if ( blendEquationSeparate !== undefined ) {
materialParams.blendEquation = WEBGL_BLEND_EQUATIONS[ blendEquationSeparate[ 0 ] ];
materialParams.blendEquationAlpha = WEBGL_BLEND_EQUATIONS[ blendEquationSeparate[ 1 ] ];
} else {
materialParams.blendEquation = THREE.AddEquation;
materialParams.blendEquationAlpha = THREE.AddEquation;
}
var blendFuncSeparate = functions.blendFuncSeparate;
if ( blendFuncSeparate !== undefined ) {
materialParams.blendSrc = WEBGL_BLEND_FUNCS[ blendFuncSeparate[ 0 ] ];
materialParams.blendDst = WEBGL_BLEND_FUNCS[ blendFuncSeparate[ 1 ] ];
materialParams.blendSrcAlpha = WEBGL_BLEND_FUNCS[ blendFuncSeparate[ 2 ] ];
materialParams.blendDstAlpha = WEBGL_BLEND_FUNCS[ blendFuncSeparate[ 3 ] ];
} else {
materialParams.blendSrc = THREE.OneFactor;
materialParams.blendDst = THREE.ZeroFactor;
materialParams.blendSrcAlpha = THREE.OneFactor;
materialParams.blendDstAlpha = THREE.ZeroFactor;
}
};
/**
* Specular-Glossiness Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/Khronos/KHR_materials_pbrSpecularGlossiness
*/
function GLTFMaterialsPbrSpecularGlossinessExtension() {
return {
name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
getMaterialType: function () {
return THREE.ShaderMaterial;
},
extendParams: function ( params, material, dependencies ) {
// specification
// https://github.com/sbtron/glTF/tree/KHRpbrSpecGloss/extensions/Khronos/KHR_materials_pbrSpecularGlossiness
var pbrSpecularGlossiness = material.extensions[ this.name ];
var shader = THREE.ShaderLib[ 'standard' ];
var uniforms = THREE.UniformsUtils.clone( shader.uniforms );
var specularMapParsFragmentChunk = [
'#ifdef USE_SPECULARMAP',
' uniform sampler2D specularMap;',
'#endif'
].join( '\n' );
var glossinessMapParsFragmentChunk = [
'#ifdef USE_GLOSSINESSMAP',
' uniform sampler2D glossinessMap;',
'#endif'
].join( '\n' );
var specularMapFragmentChunk = [
'vec3 specularFactor = specular;',
'#ifdef USE_SPECULARMAP',
' vec4 texelSpecular = texture2D( specularMap, vUv );',
' // reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture',
' specularFactor *= texelSpecular.rgb;',
'#endif'
].join( '\n' );
var glossinessMapFragmentChunk = [
'float glossinessFactor = glossiness;',
'#ifdef USE_GLOSSINESSMAP',
' vec4 texelGlossiness = texture2D( glossinessMap, vUv );',
' // reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture',
' glossinessFactor *= texelGlossiness.a;',
'#endif'
].join( '\n' );
var lightPhysicalFragmentChunk = [
'PhysicalMaterial material;',
'material.diffuseColor = diffuseColor.rgb;',
'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );',
'material.specularColor = specularFactor.rgb;',
].join( '\n' );
var fragmentShader = shader.fragmentShader
.replace( '#include <specularmap_fragment>', '' )
.replace( 'uniform float roughness;', 'uniform vec3 specular;' )
.replace( 'uniform float metalness;', 'uniform float glossiness;' )
.replace( '#include <roughnessmap_pars_fragment>', specularMapParsFragmentChunk )
.replace( '#include <metalnessmap_pars_fragment>', glossinessMapParsFragmentChunk )
.replace( '#include <roughnessmap_fragment>', specularMapFragmentChunk )
.replace( '#include <metalnessmap_fragment>', glossinessMapFragmentChunk )
.replace( '#include <lights_physical_fragment>', lightPhysicalFragmentChunk );
delete uniforms.roughness;
delete uniforms.metalness;
delete uniforms.roughnessMap;
delete uniforms.metalnessMap;
uniforms.specular = { value: new THREE.Color().setHex( 0x111111 ) };
uniforms.glossiness = { value: 0.5 };
uniforms.specularMap = { value: null };
uniforms.glossinessMap = { value: null };
params.vertexShader = shader.vertexShader;
params.fragmentShader = fragmentShader;
params.uniforms = uniforms;
params.defines = { 'STANDARD': '' };
params.color = new THREE.Color( 1.0, 1.0, 1.0 );
params.opacity = 1.0;
if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {
var array = pbrSpecularGlossiness.diffuseFactor;
params.color.fromArray( array );
params.opacity = array[ 3 ];
}
if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {
params.map = dependencies.textures[ pbrSpecularGlossiness.diffuseTexture.index ];
}
params.emissive = new THREE.Color( 0.0, 0.0, 0.0 );
params.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
params.specular = new THREE.Color( 1.0, 1.0, 1.0 );
if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {
params.specular.fromArray( pbrSpecularGlossiness.specularFactor );
}
if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {
params.glossinessMap = dependencies.textures[ pbrSpecularGlossiness.specularGlossinessTexture.index ];
params.specularMap = dependencies.textures[ pbrSpecularGlossiness.specularGlossinessTexture.index ];
}
},
createMaterial: function ( params ) {
// setup material properties based on MeshStandardMaterial for Specular-Glossiness
var material = new THREE.ShaderMaterial( {
defines: params.defines,
vertexShader: params.vertexShader,
fragmentShader: params.fragmentShader,
uniforms: params.uniforms,
fog: true,
lights: true,
opacity: params.opacity,
transparent: params.transparent
} );
material.color = params.color;
material.map = params.map === undefined ? null : params.map;
material.lightMap = null;
material.lightMapIntensity = 1.0;
material.aoMap = params.aoMap === undefined ? null : params.aoMap;
material.aoMapIntensity = 1.0;
material.emissive = params.emissive;
material.emissiveIntensity = 1.0;
material.emissiveMap = params.emissiveMap === undefined ? null : params.emissiveMap;
material.bumpMap = params.bumpMap === undefined ? null : params.bumpMap;
material.bumpScale = 1;
material.normalMap = params.normalMap === undefined ? null : params.normalMap;
material.normalScale = new THREE.Vector2( 1, 1 );
material.displacementMap = null;
material.displacementScale = 1;
material.displacementBias = 0;
material.specularMap = params.specularMap === undefined ? null : params.specularMap;
material.specular = params.specular;
material.glossinessMap = params.glossinessMap === undefined ? null : params.glossinessMap;
material.glossiness = params.glossiness;
material.alphaMap = null;
material.envMap = params.envMap === undefined ? null : params.envMap;
material.envMapIntensity = 1.0;
material.refractionRatio = 0.98;
material.extensions.derivatives = true;
return material;
},
// Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer.
refreshUniforms: function ( renderer, scene, camera, geometry, material, group ) {
var uniforms = material.uniforms;
var defines = material.defines;
uniforms.opacity.value = material.opacity;
uniforms.diffuse.value.copy( material.color );
uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );
uniforms.map.value = material.map;
uniforms.specularMap.value = material.specularMap;
uniforms.alphaMap.value = material.alphaMap;
uniforms.lightMap.value = material.lightMap;
uniforms.lightMapIntensity.value = material.lightMapIntensity;
uniforms.aoMap.value = material.aoMap;
uniforms.aoMapIntensity.value = material.aoMapIntensity;
// uv repeat and offset setting priorities
// 1. color map
// 2. specular map
// 3. normal map
// 4. bump map
// 5. alpha map
// 6. emissive map
var uvScaleMap;
if ( material.map ) {
uvScaleMap = material.map;
} else if ( material.specularMap ) {
uvScaleMap = material.specularMap;
} else if ( material.displacementMap ) {
uvScaleMap = material.displacementMap;
} else if ( material.normalMap ) {
uvScaleMap = material.normalMap;
} else if ( material.bumpMap ) {
uvScaleMap = material.bumpMap;
} else if ( material.glossinessMap ) {
uvScaleMap = material.glossinessMap;
} else if ( material.alphaMap ) {
uvScaleMap = material.alphaMap;
} else if ( material.emissiveMap ) {
uvScaleMap = material.emissiveMap;
}
if ( uvScaleMap !== undefined ) {
// backwards compatibility
if ( uvScaleMap.isWebGLRenderTarget ) {
uvScaleMap = uvScaleMap.texture;
}
var offset = uvScaleMap.offset;
var repeat = uvScaleMap.repeat;
uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );
}
uniforms.envMap.value = material.envMap;
uniforms.envMapIntensity.value = material.envMapIntensity;
uniforms.flipEnvMap.value = ( material.envMap && material.envMap.isCubeTexture ) ? -1 : 1;
uniforms.refractionRatio.value = material.refractionRatio;
uniforms.specular.value.copy( material.specular );
uniforms.glossiness.value = material.glossiness;
uniforms.glossinessMap.value = material.glossinessMap;
uniforms.emissiveMap.value = material.emissiveMap;
uniforms.bumpMap.value = material.bumpMap;
uniforms.normalMap.value = material.normalMap;
uniforms.displacementMap.value = material.displacementMap;
uniforms.displacementScale.value = material.displacementScale;
uniforms.displacementBias.value = material.displacementBias;
if ( uniforms.glossinessMap.value !== null && defines.USE_GLOSSINESSMAP === undefined ) {
defines.USE_GLOSSINESSMAP = '';
// set USE_ROUGHNESSMAP to enable vUv
defines.USE_ROUGHNESSMAP = ''
}
if ( uniforms.glossinessMap.value === null && defines.USE_GLOSSINESSMAP !== undefined ) {
delete defines.USE_GLOSSINESSMAP;
delete defines.USE_ROUGHNESSMAP;
}
}
};
}
/*********************************/
/********** INTERNALS ************/
/*********************************/
/* CONSTANTS */
var WEBGL_CONSTANTS = {
FLOAT: 5126,
//FLOAT_MAT2: 35674,
FLOAT_MAT3: 35675,
FLOAT_MAT4: 35676,
FLOAT_VEC2: 35664,
FLOAT_VEC3: 35665,
FLOAT_VEC4: 35666,
LINEAR: 9729,
REPEAT: 10497,
SAMPLER_2D: 35678,
TRIANGLES: 4,
LINES: 1,
UNSIGNED_BYTE: 5121,
UNSIGNED_SHORT: 5123,
VERTEX_SHADER: 35633,
FRAGMENT_SHADER: 35632
};
var WEBGL_TYPE = {
5126: Number,
//35674: THREE.Matrix2,
35675: THREE.Matrix3,
35676: THREE.Matrix4,
35664: THREE.Vector2,
35665: THREE.Vector3,
35666: THREE.Vector4,
35678: THREE.Texture
};
var WEBGL_COMPONENT_TYPES = {
5120: Int8Array,
5121: Uint8Array,
5122: Int16Array,
5123: Uint16Array,
5125: Uint32Array,
5126: Float32Array
};
var WEBGL_FILTERS = {
9728: THREE.NearestFilter,
9729: THREE.LinearFilter,
9984: THREE.NearestMipMapNearestFilter,
9985: THREE.LinearMipMapNearestFilter,
9986: THREE.NearestMipMapLinearFilter,
9987: THREE.LinearMipMapLinearFilter
};
var WEBGL_WRAPPINGS = {
33071: THREE.ClampToEdgeWrapping,
33648: THREE.MirroredRepeatWrapping,
10497: THREE.RepeatWrapping
};
var WEBGL_TEXTURE_FORMATS = {
6406: THREE.AlphaFormat,
6407: THREE.RGBFormat,
6408: THREE.RGBAFormat,
6409: THREE.LuminanceFormat,
6410: THREE.LuminanceAlphaFormat
};
var WEBGL_TEXTURE_DATATYPES = {
5121: THREE.UnsignedByteType,
32819: THREE.UnsignedShort4444Type,
32820: THREE.UnsignedShort5551Type,
33635: THREE.UnsignedShort565Type
};
var WEBGL_SIDES = {
1028: THREE.BackSide, // Culling front
1029: THREE.FrontSide // Culling back
//1032: THREE.NoSide // Culling front and back, what to do?
};
var WEBGL_DEPTH_FUNCS = {
512: THREE.NeverDepth,
513: THREE.LessDepth,
514: THREE.EqualDepth,
515: THREE.LessEqualDepth,
516: THREE.GreaterEqualDepth,
517: THREE.NotEqualDepth,
518: THREE.GreaterEqualDepth,
519: THREE.AlwaysDepth
};
var WEBGL_BLEND_EQUATIONS = {
32774: THREE.AddEquation,
32778: THREE.SubtractEquation,
32779: THREE.ReverseSubtractEquation
};
var WEBGL_BLEND_FUNCS = {
0: THREE.ZeroFactor,
1: THREE.OneFactor,
768: THREE.SrcColorFactor,
769: THREE.OneMinusSrcColorFactor,
770: THREE.SrcAlphaFactor,
771: THREE.OneMinusSrcAlphaFactor,
772: THREE.DstAlphaFactor,
773: THREE.OneMinusDstAlphaFactor,
774: THREE.DstColorFactor,
775: THREE.OneMinusDstColorFactor,
776: THREE.SrcAlphaSaturateFactor
// The followings are not supported by Three.js yet
//32769: CONSTANT_COLOR,
//32770: ONE_MINUS_CONSTANT_COLOR,
//32771: CONSTANT_ALPHA,
//32772: ONE_MINUS_CONSTANT_COLOR
};
var WEBGL_TYPE_SIZES = {
'SCALAR': 1,
'VEC2': 2,
'VEC3': 3,
'VEC4': 4,
'MAT2': 4,
'MAT3': 9,
'MAT4': 16
};
var PATH_PROPERTIES = {
scale: 'scale',
translation: 'position',
rotation: 'quaternion',
weights: 'morphTargetInfluences'
};
var INTERPOLATION = {
LINEAR: THREE.InterpolateLinear,
STEP: THREE.InterpolateDiscrete
};
var STATES_ENABLES = {
2884: 'CULL_FACE',
2929: 'DEPTH_TEST',
3042: 'BLEND',
3089: 'SCISSOR_TEST',
32823: 'POLYGON_OFFSET_FILL',
32926: 'SAMPLE_ALPHA_TO_COVERAGE'
};
var ALPHA_MODES = {
OPAQUE: 'OPAQUE',
MASK: 'MASK',
BLEND: 'BLEND'
};
/* UTILITY FUNCTIONS */
function _each( object, callback, thisObj ) {
if ( !object ) {
return Promise.resolve();
}
var results;
var fns = [];
if ( Object.prototype.toString.call( object ) === '[object Array]' ) {
results = [];
var length = object.length;
for ( var idx = 0; idx < length; idx ++ ) {
var value = callback.call( thisObj || this, object[ idx ], idx );
if ( value ) {
fns.push( value );
if ( value instanceof Promise ) {
value.then( function( key, value ) {
results[ key ] = value;
}.bind( this, idx ));
} else {
results[ idx ] = value;
}
}
}
} else {
results = {};
for ( var key in object ) {
if ( object.hasOwnProperty( key ) ) {
var value = callback.call( thisObj || this, object[ key ], key );
if ( value ) {
fns.push( value );
if ( value instanceof Promise ) {
value.then( function( key, value ) {
results[ key ] = value;
}.bind( this, key ));
} else {
results[ key ] = value;
}
}
}
}
}
return Promise.all( fns ).then( function() {
return results;
});
}
function resolveURL( url, path ) {
// Invalid URL
if ( typeof url !== 'string' || url === '' )
return '';
// Absolute URL http://,https://,//
if ( /^(https?:)?\/\//i.test( url ) ) {
return url;
}
// Data URI
if ( /^data:.*,.*$/i.test( url ) ) {
return url;
}
// Blob URL
if ( /^blob:.*$/i.test( url ) ) {
return url;
}
// Relative URL
return ( path || '' ) + url;
}
function convertUint8ArrayToString( array ) {
if ( window.TextDecoder !== undefined ) {
return new TextDecoder().decode( array );
}
// Avoid the String.fromCharCode.apply(null, array) shortcut, which
// throws a "maximum call stack size exceeded" error for large arrays.
var s = '';
for ( var i = 0, il = array.length; i < il; i ++ ) {
s += String.fromCharCode( array[ i ] );
}
return s;
}
// Three.js seems too dependent on attribute names so globally
// replace those in the shader code
function replaceTHREEShaderAttributes( shaderText, technique ) {
// Expected technique attributes
var attributes = {};
for ( var attributeId in technique.attributes ) {
var pname = technique.attributes[ attributeId ];
var param = technique.parameters[ pname ];
var atype = param.type;
var semantic = param.semantic;
attributes[ attributeId ] = {
type: atype,
semantic: semantic
};
}
// Figure out which attributes to change in technique
var shaderParams = technique.parameters;
var shaderAttributes = technique.attributes;
var params = {};
for ( var attributeId in attributes ) {
var pname = shaderAttributes[ attributeId ];
var shaderParam = shaderParams[ pname ];
var semantic = shaderParam.semantic;
if ( semantic ) {
params[ attributeId ] = shaderParam;
}
}
for ( var pname in params ) {
var param = params[ pname ];
var semantic = param.semantic;
var regEx = new RegExp( "\\b" + pname + "\\b", "g" );
switch ( semantic ) {
case 'POSITION':
shaderText = shaderText.replace( regEx, 'position' );
break;
case 'NORMAL':
shaderText = shaderText.replace( regEx, 'normal' );
break;
case 'TEXCOORD_0':
case 'TEXCOORD0':
case 'TEXCOORD':
shaderText = shaderText.replace( regEx, 'uv' );
break;
case 'TEXCOORD_1':
shaderText = shaderText.replace( regEx, 'uv2' );
break;
case 'COLOR_0':
case 'COLOR0':
case 'COLOR':
shaderText = shaderText.replace( regEx, 'color' );
break;
case 'WEIGHTS_0':
case 'WEIGHT': // WEIGHT semantic deprecated.
shaderText = shaderText.replace( regEx, 'skinWeight' );
break;
case 'JOINTS_0':
case 'JOINT': // JOINT semantic deprecated.
shaderText = shaderText.replace( regEx, 'skinIndex' );
break;
}
}
return shaderText;
}
function createDefaultMaterial() {
return new THREE.MeshPhongMaterial( {
color: 0x00000,
emissive: 0x888888,
specular: 0x000000,
shininess: 0,
transparent: false,
depthTest: true,
side: THREE.FrontSide
} );
}
// Deferred constructor for RawShaderMaterial types
function DeferredShaderMaterial( params ) {
this.isDeferredShaderMaterial = true;
this.params = params;
}
DeferredShaderMaterial.prototype.create = function () {
var uniforms = THREE.UniformsUtils.clone( this.params.uniforms );
for ( var uniformId in this.params.uniforms ) {
var originalUniform = this.params.uniforms[ uniformId ];
if ( originalUniform.value instanceof THREE.Texture ) {
uniforms[ uniformId ].value = originalUniform.value;
uniforms[ uniformId ].value.needsUpdate = true;
}
uniforms[ uniformId ].semantic = originalUniform.semantic;
uniforms[ uniformId ].node = originalUniform.node;
}
this.params.uniforms = uniforms;
return new THREE.RawShaderMaterial( this.params );
};
/* GLTF PARSER */
function GLTFParser( json, extensions, options ) {
this.json = json || {};
this.extensions = extensions || {};
this.options = options || {};
// loader object cache
this.cache = new GLTFRegistry();
}
GLTFParser.prototype._withDependencies = function ( dependencies ) {
var _dependencies = {};
for ( var i = 0; i < dependencies.length; i ++ ) {
var dependency = dependencies[ i ];
var fnName = "load" + dependency.charAt( 0 ).toUpperCase() + dependency.slice( 1 );
var cached = this.cache.get( dependency );
if ( cached !== undefined ) {
_dependencies[ dependency ] = cached;
} else if ( this[ fnName ] ) {
var fn = this[ fnName ]();
this.cache.add( dependency, fn );
_dependencies[ dependency ] = fn;
}
}
return _each( _dependencies, function ( dependency ) {
return dependency;
} );
};
GLTFParser.prototype.parse = function ( callback ) {
var json = this.json;
// Clear the loader cache
this.cache.removeAll();
// Fire the callback on complete
this._withDependencies( [
"scenes",
"cameras",
"animations"
] ).then( function ( dependencies ) {
var scenes = [];
for ( var name in dependencies.scenes ) {
scenes.push( dependencies.scenes[ name ] );
}
var scene = json.scene !== undefined ? dependencies.scenes[ json.scene ] : scenes[ 0 ];
var cameras = [];
for ( var name in dependencies.cameras ) {
var camera = dependencies.cameras[ name ];
cameras.push( camera );
}
var animations = [];
for ( var name in dependencies.animations ) {
animations.push( dependencies.animations[ name ] );
}
callback( scene, scenes, cameras, animations );
} );
};
GLTFParser.prototype.loadShaders = function () {
var json = this.json;
var options = this.options;
var extensions = this.extensions;
return this._withDependencies( [
"bufferViews"
] ).then( function ( dependencies ) {
var shaders = extensions[ EXTENSIONS.KHR_TECHNIQUE_WEBGL ] !== undefined ? extensions[ EXTENSIONS.KHR_TECHNIQUE_WEBGL ].shaders : json.shaders;
if ( shaders === undefined ) shaders = {};
return _each( shaders, function ( shader ) {
if ( shader.bufferView !== undefined ) {
var bufferView = dependencies.bufferViews[ shader.bufferView ];
var array = new Uint8Array( bufferView );
return convertUint8ArrayToString( array );
}
return new Promise( function ( resolve ) {
var loader = new THREE.FileLoader();
loader.setResponseType( 'text' );
loader.load( resolveURL( shader.uri, options.path ), function ( shaderText ) {
resolve( shaderText );
} );
} );
} );
} );
};
GLTFParser.prototype.loadBuffers = function () {
var json = this.json;
var extensions = this.extensions;
var options = this.options;
return _each( json.buffers, function ( buffer, name ) {
if ( buffer.type === 'arraybuffer' || buffer.type === undefined ) {
// If present, GLB container is required to be the first buffer.
if ( buffer.uri === undefined && name === 0 ) {
return extensions[ EXTENSIONS.KHR_BINARY_GLTF ].body;
}
return new Promise( function ( resolve ) {
var loader = new THREE.FileLoader();
loader.setResponseType( 'arraybuffer' );
loader.load( resolveURL( buffer.uri, options.path ), function ( buffer ) {
resolve( buffer );
} );
} );
} else {
console.warn( 'THREE.GLTF2Loader: ' + buffer.type + ' buffer type is not supported' );
}
} );
};
GLTFParser.prototype.loadBufferViews = function () {
var json = this.json;
return this._withDependencies( [
"buffers"
] ).then( function ( dependencies ) {
return _each( json.bufferViews, function ( bufferView ) {
var arraybuffer = dependencies.buffers[ bufferView.buffer ];
var byteLength = bufferView.byteLength || 0;
var byteOffset = bufferView.byteOffset || 0;
return arraybuffer.slice( byteOffset, byteOffset + byteLength );
} );
} );
};
GLTFParser.prototype.loadAccessors = function () {
var json = this.json;
return this._withDependencies( [
"bufferViews"
] ).then( function ( dependencies ) {
return _each( json.accessors, function ( accessor ) {
var arraybuffer = dependencies.bufferViews[ accessor.bufferView ];
var itemSize = WEBGL_TYPE_SIZES[ accessor.type ];
var TypedArray = WEBGL_COMPONENT_TYPES[ accessor.componentType ];
// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
var elementBytes = TypedArray.BYTES_PER_ELEMENT;
var itemBytes = elementBytes * itemSize;
var array;
// The buffer is not interleaved if the stride is the item size in bytes.
if ( accessor.byteStride && accessor.byteStride !== itemBytes ) {
// Use the full buffer if it's interleaved.
array = new TypedArray( arraybuffer );
// Integer parameters to IB/IBA are in array elements, not bytes.
var ib = new THREE.InterleavedBuffer( array, accessor.byteStride / elementBytes );
return new THREE.InterleavedBufferAttribute( ib, itemSize, accessor.byteOffset / elementBytes );
} else {
array = new TypedArray( arraybuffer, accessor.byteOffset, accessor.count * itemSize );
return new THREE.BufferAttribute( array, itemSize );
}
} );
} );
};
GLTFParser.prototype.loadTextures = function () {
var json = this.json;
var options = this.options;
return this._withDependencies( [
"bufferViews"
] ).then( function ( dependencies ) {
return _each( json.textures, function ( texture ) {
if ( texture.source !== undefined ) {
return new Promise( function ( resolve ) {
var source = json.images[ texture.source ];
var sourceUri = source.uri;
var urlCreator;
if ( source.bufferView !== undefined ) {
var bufferView = dependencies.bufferViews[ source.bufferView ];
var blob = new Blob( [ bufferView ], { type: source.mimeType } );
urlCreator = window.URL || window.webkitURL;
sourceUri = urlCreator.createObjectURL( blob );
}
var textureLoader = THREE.Loader.Handlers.get( sourceUri );
if ( textureLoader === null ) {
textureLoader = new THREE.TextureLoader();
}
textureLoader.setCrossOrigin( options.crossOrigin );
textureLoader.load( resolveURL( sourceUri, options.path ), function ( _texture ) {
if ( urlCreator !== undefined ) {
urlCreator.revokeObjectURL( sourceUri );
}
_texture.flipY = false;
if ( texture.name !== undefined ) _texture.name = texture.name;
_texture.format = texture.format !== undefined ? WEBGL_TEXTURE_FORMATS[ texture.format ] : THREE.RGBAFormat;
if ( texture.internalFormat !== undefined && _texture.format !== WEBGL_TEXTURE_FORMATS[ texture.internalFormat ] ) {
console.warn( 'THREE.GLTF2Loader: Three.js doesn\'t support texture internalFormat which is different from texture format. ' +
'internalFormat will be forced to be the same value as format.' );
}
_texture.type = texture.type !== undefined ? WEBGL_TEXTURE_DATATYPES[ texture.type ] : THREE.UnsignedByteType;
var samplers = json.samplers || {};
var sampler = samplers[ texture.sampler ] || {};
_texture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || THREE.LinearFilter;
_texture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || THREE.NearestMipMapLinearFilter;
_texture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || THREE.RepeatWrapping;
_texture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || THREE.RepeatWrapping;
resolve( _texture );
}, undefined, function () {
resolve();
} );
} );
}
} );
} );
};
GLTFParser.prototype.loadMaterials = function () {
var json = this.json;
var extensions = this.extensions;
return this._withDependencies( [
'shaders',
'textures'
] ).then( function ( dependencies ) {
return _each( json.materials, function ( material ) {
var materialType;
var materialParams = {};
var materialExtensions = material.extensions || {};
if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_COMMON ] ) {
materialType = extensions[ EXTENSIONS.KHR_MATERIALS_COMMON ].getMaterialType( material );
extensions[ EXTENSIONS.KHR_MATERIALS_COMMON ].extendParams( materialParams, material, dependencies );
} else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) {
materialType = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].getMaterialType( material );
extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].extendParams( materialParams, material, dependencies );
} else if ( materialExtensions[ EXTENSIONS.KHR_TECHNIQUE_WEBGL ] ) {
materialType = extensions[ EXTENSIONS.KHR_TECHNIQUE_WEBGL ].getMaterialType( material );
extensions[ EXTENSIONS.KHR_TECHNIQUE_WEBGL ].extendParams( materialParams, material, dependencies );
} else if ( material.pbrMetallicRoughness !== undefined ) {
// Specification:
// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
materialType = THREE.MeshStandardMaterial;
var metallicRoughness = material.pbrMetallicRoughness;
materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
materialParams.opacity = 1.0;
if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
var array = metallicRoughness.baseColorFactor;
materialParams.color.fromArray( array );
materialParams.opacity = array[ 3 ];
}
if ( metallicRoughness.baseColorTexture !== undefined ) {
materialParams.map = dependencies.textures[ metallicRoughness.baseColorTexture.index ];
var alphaMode = metallicRoughness.baseColorTexture.alphaMode || ALPHA_MODES.OPAQUE;
if ( alphaMode !== ALPHA_MODES.OPAQUE ) {
materialParams.transparent = true;
}
}
materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;
if ( metallicRoughness.metallicRoughnessTexture !== undefined ) {
var textureIndex = metallicRoughness.metallicRoughnessTexture.index;
materialParams.metalnessMap = dependencies.textures[ textureIndex ];
materialParams.roughnessMap = dependencies.textures[ textureIndex ];
}
} else {
materialType = THREE.MeshPhongMaterial;
}
if ( material.doubleSided === true ) {
materialParams.side = THREE.DoubleSide;
}
if ( materialParams.opacity !== undefined && materialParams.opacity < 1.0 ) {
materialParams.transparent = true;
} else {
materialParams.transparent = false;
}
if ( material.normalTexture !== undefined ) {
materialParams.normalMap = dependencies.textures[ material.normalTexture.index ];
}
if ( material.occlusionTexture !== undefined ) {
materialParams.aoMap = dependencies.textures[ material.occlusionTexture.index ];
}
if ( material.emissiveFactor !== undefined ) {
if ( materialType === THREE.MeshBasicMaterial ) {
materialParams.color = new THREE.Color().fromArray( material.emissiveFactor );
} else {
materialParams.emissive = new THREE.Color().fromArray( material.emissiveFactor );
}
}
if ( material.emissiveTexture !== undefined ) {
if ( materialType === THREE.MeshBasicMaterial ) {
materialParams.map = dependencies.textures[ material.emissiveTexture.index ];
} else {
materialParams.emissiveMap = dependencies.textures[ material.emissiveTexture.index ];
}
}
var _material;
if ( materialType === THREE.ShaderMaterial ) {
_material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams );
} else {
_material = new materialType( materialParams );
}
if ( material.name !== undefined ) _material.name = material.name;
return _material;
} );
} );
};
GLTFParser.prototype.loadMeshes = function () {
var json = this.json;
return this._withDependencies( [
"accessors",
"materials"
] ).then( function ( dependencies ) {
return _each( json.meshes, function ( mesh ) {
var group = new THREE.Group();
if ( mesh.name !== undefined ) group.name = mesh.name;
if ( mesh.extras ) group.userData = mesh.extras;
var primitives = mesh.primitives || [];
for ( var name in primitives ) {
var primitive = primitives[ name ];
var material = primitive.material !== undefined ? dependencies.materials[ primitive.material ] : createDefaultMaterial();
var geometry;
var meshNode;
if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLES || primitive.mode === undefined ) {
geometry = new THREE.BufferGeometry();
var attributes = primitive.attributes;
for ( var attributeId in attributes ) {
var attributeEntry = attributes[ attributeId ];
if ( attributeEntry === undefined ) return;
var bufferAttribute = dependencies.accessors[ attributeEntry ];
switch ( attributeId ) {
case 'POSITION':
geometry.addAttribute( 'position', bufferAttribute );
break;
case 'NORMAL':
geometry.addAttribute( 'normal', bufferAttribute );
break;
case 'TEXCOORD_0':
case 'TEXCOORD0':
case 'TEXCOORD':
geometry.addAttribute( 'uv', bufferAttribute );
break;
case 'TEXCOORD_1':
geometry.addAttribute( 'uv2', bufferAttribute );
break;
case 'COLOR_0':
case 'COLOR0':
case 'COLOR':
geometry.addAttribute( 'color', bufferAttribute );
break;
case 'WEIGHTS_0':
case 'WEIGHT': // WEIGHT semantic deprecated.
geometry.addAttribute( 'skinWeight', bufferAttribute );
break;
case 'JOINTS_0':
case 'JOINT': // JOINT semantic deprecated.
geometry.addAttribute( 'skinIndex', bufferAttribute );
break;
}
}
if ( primitive.indices !== undefined ) {
geometry.setIndex( dependencies.accessors[ primitive.indices ] );
}
if ( material.aoMap !== undefined
&& geometry.attributes.uv2 === undefined
&& geometry.attributes.uv !== undefined ) {
console.log( 'GLTF2Loader: Duplicating UVs to support aoMap.' );
geometry.addAttribute( 'uv2', new THREE.BufferAttribute( geometry.attributes.uv.array, 2 ) );
}
meshNode = new THREE.Mesh( geometry, material );
meshNode.castShadow = true;
if ( primitive.targets !== undefined ) {
var targets = primitive.targets;
var morphAttributes = geometry.morphAttributes;
morphAttributes.position = [];
morphAttributes.normal = [];
material.morphTargets = true;
for ( var i = 0, il = targets.length; i < il; i ++ ) {
var target = targets[ i ];
var attributeName = 'morphTarget' + i;
var positionAttribute, normalAttribute;
if ( target.POSITION !== undefined ) {
// Three.js morph formula is
// position
// + weight0 * ( morphTarget0 - position )
// + weight1 * ( morphTarget1 - position )
// ...
// while the glTF one is
// position
// + weight0 * morphTarget0
// + weight1 * morphTarget1
// ...
// then adding position to morphTarget.
// So morphTarget value will depend on mesh's position, then cloning attribute
// for the case if attribute is shared among two or more meshes.
positionAttribute = dependencies.accessors[ target.POSITION ].clone();
var position = geometry.attributes.position;
for ( var j = 0, jl = positionAttribute.array.length; j < jl; j ++ ) {
positionAttribute.array[ j ] += position.array[ j ];
}
} else {
// Copying the original position not to affect the final position.
// See the formula above.
positionAttribute = geometry.attributes.position.clone();
}
if ( target.NORMAL !== undefined ) {
material.morphNormals = true;
// see target.POSITION's comment
normalAttribute = dependencies.accessors[ target.NORMAL ].clone();
var normal = geometry.attributes.normal;
for ( var j = 0, jl = normalAttribute.array.length; j < jl; j ++ ) {
normalAttribute.array[ j ] += normal.array[ j ];
}
} else {
normalAttribute = geometry.attributes.normal.clone();
}
// TODO: implement
if ( target.TANGENT !== undefined ) {
}
positionAttribute.name = attributeName;
normalAttribute.name = attributeName;
morphAttributes.position.push( positionAttribute );
morphAttributes.normal.push( normalAttribute );
}
meshNode.updateMorphTargets();
if ( mesh.weights !== undefined ) {
for ( var i = 0, il = mesh.weights.length; i < il; i ++ ) {
meshNode.morphTargetInfluences[ i ] = mesh.weights[ i ];
}
}
}
} else if ( primitive.mode === WEBGL_CONSTANTS.LINES ) {
geometry = new THREE.BufferGeometry();
var attributes = primitive.attributes;
for ( var attributeId in attributes ) {
var attributeEntry = attributes[ attributeId ];
if ( ! attributeEntry ) return;
var bufferAttribute = dependencies.accessors[ attributeEntry ];
switch ( attributeId ) {
case 'POSITION':
geometry.addAttribute( 'position', bufferAttribute );
break;
case 'COLOR_0':
case 'COLOR0':
case 'COLOR':
geometry.addAttribute( 'color', bufferAttribute );
break;
}
}
if ( primitive.indices !== undefined ) {
geometry.setIndex( dependencies.accessors[ primitive.indices ] );
meshNode = new THREE.LineSegments( geometry, material );
} else {
meshNode = new THREE.Line( geometry, material );
}
} else {
throw new Error( "Only triangular and line primitives are supported" );
}
if ( geometry.attributes.color !== undefined ) {
material.vertexColors = THREE.VertexColors;
material.needsUpdate = true;
}
meshNode.name = ( name === "0" ? group.name : group.name + name );
if ( primitive.extras ) meshNode.userData = primitive.extras;
group.add( meshNode );
}
return group;
} );
} );
};
GLTFParser.prototype.loadCameras = function () {
var json = this.json;
return _each( json.cameras, function ( camera ) {
if ( camera.type == "perspective" && camera.perspective ) {
var yfov = camera.perspective.yfov;
var aspectRatio = camera.perspective.aspectRatio !== undefined ? camera.perspective.aspectRatio : 1;
// According to COLLADA spec...
// aspectRatio = xfov / yfov
var xfov = yfov * aspectRatio;
var _camera = new THREE.PerspectiveCamera( THREE.Math.radToDeg( xfov ), aspectRatio, camera.perspective.znear || 1, camera.perspective.zfar || 2e6 );
if ( camera.name !== undefined ) _camera.name = camera.name;
if ( camera.extras ) _camera.userData = camera.extras;
return _camera;
} else if ( camera.type == "orthographic" && camera.orthographic ) {
var _camera = new THREE.OrthographicCamera( window.innerWidth / - 2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / - 2, camera.orthographic.znear, camera.orthographic.zfar );
if ( camera.name !== undefined ) _camera.name = camera.name;
if ( camera.extras ) _camera.userData = camera.extras;
return _camera;
}
} );
};
GLTFParser.prototype.loadSkins = function () {
var json = this.json;
return this._withDependencies( [
"accessors"
] ).then( function ( dependencies ) {
return _each( json.skins, function ( skin ) {
var bindShapeMatrix = new THREE.Matrix4();
if ( skin.bindShapeMatrix !== undefined ) bindShapeMatrix.fromArray( skin.bindShapeMatrix );
var _skin = {
bindShapeMatrix: bindShapeMatrix,
joints: skin.joints,
inverseBindMatrices: dependencies.accessors[ skin.inverseBindMatrices ]
};
return _skin;
} );
} );
};
GLTFParser.prototype.loadAnimations = function () {
var json = this.json;
return this._withDependencies( [
"accessors",
"nodes"
] ).then( function ( dependencies ) {
return _each( json.animations, function ( animation, animationId ) {
var tracks = [];
for ( var channelId in animation.channels ) {
var channel = animation.channels[ channelId ];
var sampler = animation.samplers[ channel.sampler ];
if ( sampler ) {
var target = channel.target;
var name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.
var input = animation.parameters !== undefined ? animation.parameters[ sampler.input ] : sampler.input;
var output = animation.parameters !== undefined ? animation.parameters[ sampler.output ] : sampler.output;
var inputAccessor = dependencies.accessors[ input ];
var outputAccessor = dependencies.accessors[ output ];
var node = dependencies.nodes[ name ];
if ( node ) {
node.updateMatrix();
node.matrixAutoUpdate = true;
var TypedKeyframeTrack;
switch ( PATH_PROPERTIES[ target.path ] ) {
case PATH_PROPERTIES.weights:
TypedKeyframeTrack = THREE.NumberKeyframeTrack;
break;
case PATH_PROPERTIES.rotation:
TypedKeyframeTrack = THREE.QuaternionKeyframeTrack;
break;
case PATH_PROPERTIES.position:
case PATH_PROPERTIES.scale:
default:
TypedKeyframeTrack = THREE.VectorKeyframeTrack;
break;
}
var targetName = node.name ? node.name : node.uuid;
var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : THREE.InterpolateLinear;
var targetNames = [];
if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {
// node should be THREE.Group here but
// PATH_PROPERTIES.weights(morphTargetInfluences) should be
// the property of a mesh object under node.
// So finding targets here.
node.traverse( function ( object ) {
if ( object.isMesh === true && object.material.morphTargets === true ) {
targetNames.push( object.name ? object.name : object.uuid );
}
} );
} else {
targetNames.push( targetName );
}
// KeyframeTrack.optimize() will modify given 'times' and 'values'
// buffers before creating a truncated copy to keep. Because buffers may
// be reused by other tracks, make copies here.
for ( var i = 0, il = targetNames.length; i < il; i ++ ) {
tracks.push( new TypedKeyframeTrack(
targetNames[ i ] + '.' + PATH_PROPERTIES[ target.path ],
THREE.AnimationUtils.arraySlice( inputAccessor.array, 0 ),
THREE.AnimationUtils.arraySlice( outputAccessor.array, 0 ),
interpolation
) );
}
}
}
}
var name = animation.name !== undefined ? animation.name : "animation_" + animationId;
return new THREE.AnimationClip( name, undefined, tracks );
} );
} );
};
GLTFParser.prototype.loadNodes = function () {
var json = this.json;
var extensions = this.extensions;
var scope = this;
var nodes = json.nodes || [];
var skins = json.skins || [];
// Nothing in the node definition indicates whether it is a Bone or an
// Object3D. Use the skins' joint references to mark bones.
skins.forEach( function ( skin ) {
skin.joints.forEach( function ( id ) {
nodes[ id ].isBone = true;
} );
} );
return _each( json.nodes, function ( node ) {
var matrix = new THREE.Matrix4();
var _node = node.isBone === true ? new THREE.Bone() : new THREE.Object3D();
if ( node.name !== undefined ) {
_node.name = THREE.PropertyBinding.sanitizeNodeName( node.name );
}
if ( node.extras ) _node.userData = node.extras;
if ( node.matrix !== undefined ) {
matrix.fromArray( node.matrix );
_node.applyMatrix( matrix );
} else {
if ( node.translation !== undefined ) {
_node.position.fromArray( node.translation );
}
if ( node.rotation !== undefined ) {
_node.quaternion.fromArray( node.rotation );
}
if ( node.scale !== undefined ) {
_node.scale.fromArray( node.scale );
}
}
return _node;
} ).then( function ( __nodes ) {
return scope._withDependencies( [
"meshes",
"skins",
"cameras"
] ).then( function ( dependencies ) {
return _each( __nodes, function ( _node, nodeId ) {
var node = json.nodes[ nodeId ];
var meshes;
if ( node.mesh !== undefined) {
meshes = [ node.mesh ];
} else if ( node.meshes !== undefined ) {
console.warn( 'GLTF2Loader: Legacy glTF file detected. Nodes may have no more than 1 mesh.' );
meshes = node.meshes;
}
if ( meshes !== undefined ) {
for ( var meshId in meshes ) {
var mesh = meshes[ meshId ];
var group = dependencies.meshes[ mesh ];
if ( group === undefined ) {
console.warn( 'GLTF2Loader: Couldn\'t find node "' + mesh + '".' );
continue;
}
for ( var childrenId in group.children ) {
var child = group.children[ childrenId ];
// clone Mesh to add to _node
var originalMaterial = child.material;
var originalGeometry = child.geometry;
var originalUserData = child.userData;
var originalName = child.name;
var material;
if ( originalMaterial.isDeferredShaderMaterial ) {
originalMaterial = material = originalMaterial.create();
} else {
material = originalMaterial;
}
switch ( child.type ) {
case 'LineSegments':
child = new THREE.LineSegments( originalGeometry, material );
break;
case 'LineLoop':
child = new THREE.LineLoop( originalGeometry, material );
break;
case 'Line':
child = new THREE.Line( originalGeometry, material );
break;
default:
child = new THREE.Mesh( originalGeometry, material );
}
child.castShadow = true;
child.userData = originalUserData;
child.name = originalName;
var skinEntry;
if ( node.skin !== undefined ) {
skinEntry = dependencies.skins[ node.skin ];
}
// Replace Mesh with SkinnedMesh in library
if ( skinEntry ) {
var geometry = originalGeometry;
material = originalMaterial;
material.skinning = true;
child = new THREE.SkinnedMesh( geometry, material, false );
child.castShadow = true;
child.userData = originalUserData;
child.name = originalName;
var bones = [];
var boneInverses = [];
for ( var i = 0, l = skinEntry.joints.length; i < l; i ++ ) {
var jointId = skinEntry.joints[ i ];
var jointNode = __nodes[ jointId ];
if ( jointNode ) {
bones.push( jointNode );
var m = skinEntry.inverseBindMatrices.array;
var mat = new THREE.Matrix4().fromArray( m, i * 16 );
boneInverses.push( mat );
} else {
console.warn( "WARNING: joint: '" + jointId + "' could not be found" );
}
}
child.bind( new THREE.Skeleton( bones, boneInverses, false ), skinEntry.bindShapeMatrix );
var buildBoneGraph = function ( parentJson, parentObject, property ) {
var children = parentJson[ property ];
if ( children === undefined ) return;
for ( var i = 0, il = children.length; i < il; i ++ ) {
var nodeId = children[ i ];
var bone = __nodes[ nodeId ];
var boneJson = json.nodes[ nodeId ];
if ( bone !== undefined && bone.isBone === true && boneJson !== undefined ) {
parentObject.add( bone );
buildBoneGraph( boneJson, bone, 'children' );
}
}
};
buildBoneGraph( node, child, 'skeletons' );
}
_node.add( child );
}
}
}
if ( node.camera !== undefined ) {
var camera = dependencies.cameras[ node.camera ];
_node.add( camera );
}
if ( node.extensions
&& node.extensions[ EXTENSIONS.KHR_MATERIALS_COMMON ]
&& node.extensions[ EXTENSIONS.KHR_MATERIALS_COMMON ].light ) {
var extensionLights = extensions[ EXTENSIONS.KHR_LIGHTS ].lights;
var light = extensionLights[ node.extensions[ EXTENSIONS.KHR_LIGHTS ].light ];
_node.add( light );
}
return _node;
} );
} );
} );
};
GLTFParser.prototype.loadScenes = function () {
var json = this.json;
var extensions = this.extensions;
// scene node hierachy builder
function buildNodeHierachy( nodeId, parentObject, allNodes ) {
var _node = allNodes[ nodeId ];
parentObject.add( _node );
var node = json.nodes[ nodeId ];
if ( node.children ) {
var children = node.children;
for ( var i = 0, l = children.length; i < l; i ++ ) {
var child = children[ i ];
buildNodeHierachy( child, _node, allNodes );
}
}
}
return this._withDependencies( [
"nodes"
] ).then( function ( dependencies ) {
return _each( json.scenes, function ( scene ) {
var _scene = new THREE.Scene();
if ( scene.name !== undefined ) _scene.name = scene.name;
if ( scene.extras ) _scene.userData = scene.extras;
var nodes = scene.nodes || [];
for ( var i = 0, l = nodes.length; i < l; i ++ ) {
var nodeId = nodes[ i ];
buildNodeHierachy( nodeId, _scene, dependencies.nodes );
}
_scene.traverse( function ( child ) {
// Register raw material meshes with GLTF2Loader.Shaders
if ( child.material && child.material.isRawShaderMaterial ) {
child.gltfShader = new GLTFShader( child, dependencies.nodes );
child.onBeforeRender = function(renderer, scene, camera){
this.gltfShader.update(scene, camera);
};
}
// for Specular-Glossiness.
if ( child.material && child.material.type === 'ShaderMaterial' ) {
child.onBeforeRender = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].refreshUniforms;
}
} );
return _scene;
} );
} );
};
return GLTF2Loader;
} )();