ents ); } clone() { return new this.constructor().copy( this ); } fromArray( array, offset = 0 ) { const coefficients = this.coefficients; for ( let i = 0; i < 9; i ++ ) { coefficients[ i ].fromArray( array, offset + ( i * 3 ) ); } return this; } toArray( array = [], offset = 0 ) { const coefficients = this.coefficients; for ( let i = 0; i < 9; i ++ ) { coefficients[ i ].toArray( array, offset + ( i * 3 ) ); } return array; } // evaluate the basis functions // shBasis is an Array[ 9 ] static getBasisAt( normal, shBasis ) { // normal is assumed to be unit length const x = normal.x, y = normal.y, z = normal.z; // band 0 shBasis[ 0 ] = 0.282095; // band 1 shBasis[ 1 ] = 0.488603 * y; shBasis[ 2 ] = 0.488603 * z; shBasis[ 3 ] = 0.488603 * x; // band 2 shBasis[ 4 ] = 1.092548 * x * y; shBasis[ 5 ] = 1.092548 * y * z; shBasis[ 6 ] = 0.315392 * ( 3 * z * z - 1 ); shBasis[ 7 ] = 1.092548 * x * z; shBasis[ 8 ] = 0.546274 * ( x * x - y * y ); } } class LightProbe extends Light { constructor( sh = new SphericalHarmonics3(), intensity = 1 ) { super( undefined, intensity ); this.isLightProbe = true; this.sh = sh; } copy( source ) { super.copy( source ); this.sh.copy( source.sh ); return this; } fromJSON( json ) { this.intensity = json.intensity; // TODO: Move this bit to Light.fromJSON(); this.sh.fromArray( json.sh ); return this; } toJSON( meta ) { const data = super.toJSON( meta ); data.object.sh = this.sh.toArray(); return data; } } class MaterialLoader extends Loader { constructor( manager ) { super( manager ); this.textures = {}; } load( url, onLoad, onProgress, onError ) { const scope = this; const loader = new FileLoader( scope.manager ); loader.setPath( scope.path ); loader.setRequestHeader( scope.requestHeader ); loader.setWithCredentials( scope.withCredentials ); loader.load( url, function ( text ) { try { onLoad( scope.parse( JSON.parse( text ) ) ); } catch ( e ) { if ( onError ) { onError( e ); } else { console.error( e ); } scope.manager.itemError( url ); } }, onProgress, onError ); } parse( json ) { const textures = this.textures; function getTexture( name ) { if ( textures[ name ] === undefined ) { console.warn( 'THREE.MaterialLoader: Undefined texture', name ); } return textures[ name ]; } const material = MaterialLoader.createMaterialFromType( json.type ); if ( json.uuid !== undefined ) material.uuid = json.uuid; if ( json.name !== undefined ) material.name = json.name; if ( json.color !== undefined && material.color !== undefined ) material.color.setHex( json.color ); if ( json.roughness !== undefined ) material.roughness = json.roughness; if ( json.metalness !== undefined ) material.metalness = json.metalness; if ( json.sheen !== undefined ) material.sheen = json.sheen; if ( json.sheenColor !== undefined ) material.sheenColor = new Color().setHex( json.sheenColor ); if ( json.sheenRoughness !== undefined ) material.sheenRoughness = json.sheenRoughness; if ( json.emissive !== undefined && material.emissive !== undefined ) material.emissive.setHex( json.emissive ); if ( json.specular !== undefined && material.specular !== undefined ) material.specular.setHex( json.specular ); if ( json.specularIntensity !== undefined ) material.specularIntensity = json.specularIntensity; if ( json.specularColor !== undefined && material.specularColor !== undefined ) material.specularColor.setHex( json.specularColor ); if ( json.shininess !== undefined ) material.shininess = json.shininess; if ( json.clearcoat !== undefined ) material.clearcoat = json.clearcoat; if ( json.clearcoatRoughness !== undefined ) material.clearcoatRoughness = json.clearcoatRoughness; if ( json.dispersion !== undefined ) material.dispersion = json.dispersion; if ( json.iridescence !== undefined ) material.iridescence = json.iridescence; if ( json.iridescenceIOR !== undefined ) material.iridescenceIOR = json.iridescenceIOR; if ( json.iridescenceThicknessRange !== undefined ) material.iridescenceThicknessRange = json.iridescenceThicknessRange; if ( json.transmission !== undefined ) material.transmission = json.transmission; if ( json.thickness !== undefined ) material.thickness = json.thickness; if ( json.attenuationDistance !== undefined ) material.attenuationDistance = json.attenuationDistance; if ( json.attenuationColor !== undefined && material.attenuationColor !== undefined ) material.attenuationColor.setHex( json.attenuationColor ); if ( json.anisotropy !== undefined ) material.anisotropy = json.anisotropy; if ( json.anisotropyRotation !== undefined ) material.anisotropyRotation = json.anisotropyRotation; if ( json.fog !== undefined ) material.fog = json.fog; if ( json.flatShading !== undefined ) material