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OBJExporter.js
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OBJExporter.js
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( function () {
class OBJExporter {
parse( object, filename ) {
let output = '';
let indexVertex = 0;
let indexVertexUvs = 0;
let indexNormals = 0;
let mesh_count = 0;
let line_count = 0;
let points_count = 0;
let materials = {};
let material_names = [];
let material_colors = {};
const vertex = new THREE.Vector3();
const color = new THREE.Color();
const normal = new THREE.Vector3();
const uv = new THREE.Vector2();
const face = [];
function parseMesh( mesh ) {
let nbVertex = 0;
let nbNormals = 0;
let nbVertexUvs = 0;
let multi_materials = {};
const geometry = mesh.geometry;
const normalMatrixWorld = new THREE.Matrix3();
if ( geometry.isBufferGeometry !== true ) {
throw new Error( 'THREE.OBJExporter: Geometry is not of type THREE.BufferGeometry.' );
} // shortcuts
const groups = geometry.groups;
const vertex_colors = geometry.getAttribute( 'color' );
const vertices = geometry.getAttribute( 'position' );
const normals = geometry.getAttribute( 'normal' );
const uvs = geometry.getAttribute( 'uv' );
const indices = geometry.getIndex(); // name of the mesh object
if (mesh.name === '') {
mesh[ 'name' ] = 'mesh_' + mesh_count;
} else {
mesh.name = mesh.name.replace( '#', '' );
mesh.name = mesh.name.replace( ' ', '_' );
}
output += 'o ' + mesh.name + '\n'; // name of the mesh material
if ( mesh.material && mesh.material.name ) {
if (mesh.material.name === '') {
mesh.material[ 'name' ] = 'mesh_material_' + mesh_count;
} else if ( mesh.material.name.toUpperCase().endsWith( '.PNG' ) || mesh.material.name.toUpperCase().endsWith( '.JPG' ) ) {
mesh.material[ 'name' ] = mesh.material.name.substring( 0, mesh.material.name.lastIndexOf( '.' ) );
}
mesh.material.name = mesh.material.name.replace( '#', '' );
mesh.material.name = mesh.material.name.replace( ' ', '_' );
let temp_name = mesh.material.name;
if (material_names.includes( temp_name ) === false || material_colors[ temp_name ] !== mesh.material.color) {
if (material_colors[ temp_name ] !== mesh.material.color) mesh.material.name = temp_name;
material_names.push( mesh.material.name );
material_colors[ mesh.material.name ] = mesh.material.color;
}
output += 'usemtl ' + mesh.material.name + '\n';
materials[ mesh.material.name ] = mesh.material;
} else if ( mesh.material && Array.isArray( mesh.material ) ) {
materials[ 'multi_' + mesh.name ] = mesh.material;
if ( groups !== undefined ) {
let mesh_group_material_count = 0;
for ( let i = 0, l = groups.length; i < l; i ++ ) {
if (mesh.material[ groups[ i ].materialIndex ].name === '') {
mesh.material[ groups[ i ].materialIndex ][ 'name' ] = 'mesh_group_material_' + mesh_count + '_' + mesh_group_material_count;
mesh_group_material_count += 1;
} else if ( mesh.material[ groups[ i ].materialIndex ].name.toUpperCase().endsWith( '.PNG' ) || mesh.material[ groups[ i ].materialIndex ].name.toUpperCase().endsWith( '.JPG' ) ) {
mesh.material[ groups[ i ].materialIndex ][ 'name' ] = mesh.material[ groups[ i ].materialIndex ].name.substring( 0, mesh.material[ groups[ i ].materialIndex ].name.lastIndexOf( '.' ) );
}
mesh.material[ groups[ i ].materialIndex ].name = mesh.material[ groups[ i ].materialIndex ].name.replace( '#', '' );
mesh.material[ groups[ i ].materialIndex ].name = mesh.material[ groups[ i ].materialIndex ].name.replace( ' ', '_' );
multi_materials[ groups[ i ].start ] = mesh.material[ groups[ i ].materialIndex ].name;
}
} else {
output += 'usemtl multi_' + mesh.name + '\n';
}
} else if ( mesh.material && vertex_colors === undefined ) {
output += 'usemtl material' + mesh.material.id + '\n';
materials[ 'material' + mesh.material.id ] = mesh.material;
} // vertices
if ( vertices !== undefined ) {
for ( let i = 0, l = vertices.count; i < l; i ++, nbVertex ++ ) {
vertex.x = vertices.getX( i );
vertex.y = vertices.getY( i );
vertex.z = vertices.getZ( i ); // transform the vertex to world space
vertex.applyMatrix4( mesh.matrixWorld ); // transform the vertex to export format
if ( vertex_colors ) {
output += 'v ' + vertex.x + ' ' + vertex.y + ' ' + vertex.z + ' ' + vertex_colors.getX( i ) + ' ' + vertex_colors.getY( i ) + ' ' + vertex_colors.getZ( i ) + '\n';
} else {
output += 'v ' + vertex.x + ' ' + vertex.y + ' ' + vertex.z + '\n';
}
}
} // uvs
if ( uvs !== undefined ) {
for ( let i = 0, l = uvs.count; i < l; i ++, nbVertexUvs ++ ) {
uv.x = uvs.getX( i );
uv.y = uvs.getY( i ); // transform the uv to export format
output += 'vt ' + uv.x + ' ' + uv.y + '\n';
}
} // normals
if ( normals !== undefined ) {
normalMatrixWorld.getNormalMatrix( mesh.matrixWorld );
for ( let i = 0, l = normals.count; i < l; i ++, nbNormals ++ ) {
normal.x = normals.getX( i );
normal.y = normals.getY( i );
normal.z = normals.getZ( i ); // transform the normal to world space
normal.applyMatrix3( normalMatrixWorld ).normalize(); // transform the normal to export format
output += 'vn ' + normal.x + ' ' + normal.y + ' ' + normal.z + '\n';
}
} // faces
if ( indices !== null ) {
for ( let i = 0, l = indices.count; i < l; i += 3 ) {
Object.keys( multi_materials ).forEach( ( key ) => {
if ( parseInt( key ) === i ) {
output += 'usemtl ' + multi_materials[ i ] + '\n';
}
});
for ( let m = 0; m < 3; m ++ ) {
const j = indices.getX( i + m ) + 1;
face[ m ] = indexVertex + j + ( normals || uvs ? '/' + ( uvs ? indexVertexUvs + j : '' ) + ( normals ? '/' + ( indexNormals + j ) : '' ) : '' );
} // transform the face to export format
output += 'f ' + face.join( ' ' ) + '\n';
}
} else {
for ( let i = 0, l = vertices.count; i < l; i += 3 ) {
Object.keys( multi_materials ).forEach( ( key ) => {
if ( parseInt( key ) === i ) {
output += 'usemtl ' + multi_materials[ i ] + '\n';
}
});
for ( let m = 0; m < 3; m ++ ) {
const j = i + m + 1;
face[ m ] = indexVertex + j + ( normals || uvs ? '/' + ( uvs ? indexVertexUvs + j : '' ) + ( normals ? '/' + ( indexNormals + j ) : '' ) : '' );
} // transform the face to export format
output += 'f ' + face.join( ' ' ) + '\n';
}
} // update index
indexVertex += nbVertex;
indexVertexUvs += nbVertexUvs;
indexNormals += nbNormals;
mesh_count += 1;
}
function parseLine( line ) {
let nbVertex = 0;
const geometry = line.geometry;
const type = line.type;
if ( geometry.isBufferGeometry !== true ) {
throw new Error( 'THREE.OBJExporter: Geometry is not of type THREE.BufferGeometry.' );
}
// shortcuts
const vertices = geometry.getAttribute( 'position' );
// name of the line object
output += 'o ' + line.name + '\n';
if ( line.material ) {
if ( line.material.name ) {
if ( line.material.name === '' ) line.material.name = 'line_material_' + line_count;
} else {
line.material[ 'name' ] = 'line_material_' + line_count;
}
materials[ line.material.name ] = line.material;
output += 'usemtl ' + line.material.name + '\n';
line_count += 1;
}
if ( vertices !== undefined ) {
for ( let i = 0, l = vertices.count; i < l; i ++, nbVertex ++ ) {
vertex.x = vertices.getX( i );
vertex.y = vertices.getY( i );
vertex.z = vertices.getZ( i );
// transform the vertex to world space
vertex.applyMatrix4( line.matrixWorld );
// transform the vertex to export format
output += 'v ' + vertex.x + ' ' + vertex.y + ' ' + vertex.z + '\n';
}
}
if ( type === 'Line' ) {
output += 'l ';
for ( let j = 1, l = vertices.count; j <= l; j ++ ) {
output += indexVertex + j + ' ';
}
output += '\n';
}
if ( type === 'LineSegments' ) {
for ( let j = 1, k = j + 1, l = vertices.count; j < l; j += 2, k = j + 1 ) {
output += 'l ' + ( indexVertex + j ) + ' ' + ( indexVertex + k ) + '\n';
}
} // update index
indexVertex += nbVertex;
}
function parsePoints( points ) {
let nbVertex = 0;
const geometry = points.geometry;
if ( geometry.isBufferGeometry !== true ) {
throw new Error( 'THREE.OBJExporter: Geometry is not of type THREE.BufferGeometry.' );
}
const vertices = geometry.getAttribute( 'position' );
const colors = geometry.getAttribute( 'color' );
output += 'o ' + points.name + '\n';
if ( vertices !== undefined ) {
for ( let i = 0, l = vertices.count; i < l; i ++, nbVertex ++ ) {
vertex.fromBufferAttribute( vertices, i );
vertex.applyMatrix4( points.matrixWorld );
output += 'v ' + vertex.x + ' ' + vertex.y + ' ' + vertex.z;
if ( colors !== undefined ) {
color.fromBufferAttribute( colors, i ).convertLinearToSRGB();
output += ' ' + color.r + ' ' + color.g + ' ' + color.b;
}
output += '\n';
}
output += 'p ';
for ( let j = 1, l = vertices.count; j <= l; j ++ ) {
output += indexVertex + j + ' ';
}
output += '\n';
} // update index
indexVertex += nbVertex;
if ( points.material ) {
if ( points.material.name ) {
if ( points.material.name === '' ) points.material.name = 'points_material_' + points_count;
} else {
points.material[ 'name' ] = 'points_material_' + points_count;
}
materials[ points.material.name ] = points.material;
output += 'usemtl ' + points.material.name + '\n';
points_count += 1;
}
}
object.traverse( function ( child ) {
if ( child.isMesh === true ) {
parseMesh( child );
}
if ( child.isLine === true ) {
parseLine( child );
}
if ( child.isPoints === true ) {
parsePoints( child );
}
} );
if (Object.keys( materials ).length !== 0) {
// mtl output (Ref: https://stackoverflow.com/questions/35070048/export-a-three-js-textured-model-to-a-obj-with-mtl-file)
output = 'mtllib ' + filename + 'mtl' + '\n' + output; // add name of the material library
let mtlOutput = '# MTL file - created by a modified three.js OBJExporter' + '\n';
let textures = [];
let names = [];
let map_uuids = [];
let map_names = {};
const ext = 'png';
let count = 1;
Object.keys( materials ).forEach( ( key ) => {
if ( Array.isArray( materials[ key ] )) {
materials[ key ].forEach( ( mtl ) => {
let mat = mtl;
let name = ( mat.name && mat.name !== '' ) ? ( ( mat.name.toUpperCase().endsWith( '.PNG' ) || mat.name.toUpperCase().endsWith( '.JPG' ) ) ? mat.name.substring(0, mat.name.lastIndexOf( '.' ) ) : mat.name ) : 'material' + mat.id;
name = name.replace( '#', '' );
name = name.replace( ' ', '_' );
if ( names.includes( name ) === false ) {
names.push( name );
let transparency = ( mat.opacity < 1 ) ? ( 1 - mat.opacity ) : '0.0000';
mtlOutput += '\n' + 'newmtl ' + name + '\n';
mtlOutput += 'Tr ' + transparency + '\n';
mtlOutput += 'Tf 1.0000 1.0000 1.0000\n';
mtlOutput += 'illum 1\n';
if ( mat.specular ) mtlOutput += 'Ks ' + mat.specular.r + ' ' + mat.specular.g + ' ' + mat.specular.b + '\n';
if ( mat.shininess ) mtlOutput += 'Ns ' + mat.shininess + '\n';
if ( mat.refractionRatio ) mtlOutput += 'Ni ' + mat.refractionRatio + '\n';
if ( mat.metalness ) mtlOutput += 'Pm ' + mat.metalness + '\n';
if ( mat.roughness ) mtlOutput += 'Pr ' + mat.roughness + '\n';
if ( mat.displacementBias ) mtlOutput += 'Pdb ' + mat.displacementBias + '\n';
if ( mat.displacementScale ) mtlOutput += 'Pds ' + mat.displacementScale + '\n';
if ( mat.lightMapIntensity ) mtlOutput += 'Pl ' + mat.lightMapIntensity + '\n';
if ( mat.clearcoat ) mtlOutput += 'Pcc ' + mat.clearcoat + '\n';
if ( mat.clearcoatRoughness ) mtlOutput += 'Pccr ' + mat.clearcoatRoughness + '\n';
if ( mat.clearcoatNormalScale ) mtlOutput += 'Pccns ' + mat.clearcoatNormalScale.x + ' ' + mat.clearcoatNormalScale.y + '\n';
if ( mat.reflectivity ) mtlOutput += 'Prfl ' + mat.reflectivity + '\n';
if ( mat.ior ) mtlOutput += 'Pior ' + mat.ior + '\n';
if ( mat.sheen ) mtlOutput += 'Psh ' + mat.sheen + '\n';
if ( mat.sheenColor ) mtlOutput += 'Pshc ' + mat.sheenColor.r + ' ' + mat.sheenColor.g + ' ' + mat.sheenColor.b + '\n';
if ( mat.sheenRoughness ) mtlOutput += 'Pshr ' + mat.sheenRoughness + '\n';
if ( mat.specularIntensity ) mtlOutput += 'Psi ' + mat.specularIntensity + '\n';
if ( mat.specularColor ) mtlOutput += 'Psc ' + mat.specularColor.r + ' ' + mat.specularColor.g + ' ' + mat.specularColor.b + '\n';
if ( mat.thickness ) mtlOutput += 'Pth ' + mat.thickness + '\n';
if ( mat.transmission ) mtlOutput += 'Ptr ' + mat.transmission + '\n';
mtlOutput += mat.aoMapIntensity ? 'Ka ' + mat.aoMapIntensity + ' ' + mat.aoMapIntensity + ' ' + mat.aoMapIntensity + '\n' : 'Ka 1 1 1\n';
mtlOutput += mat.color ? 'Kd ' + mat.color.r + ' ' + mat.color.g + ' ' + mat.color.b + '\n' : 'Kd 1 1 1\n';
mtlOutput += mat.emissive ? 'Ke ' + mat.emissive.r + ' ' + mat.emissive.g + ' ' + mat.emissive.b + '\n' : 'Ke 0 0 0\n';
if ( mat.map && mat.map.type === 1009 && mat.map.image ) {
if ( mat.map.image.src || mat.map.image.data ) {
if ( map_uuids.includes( mat.map.uuid ) === false ) {
map_uuids.push( mat.map.uuid );
map_names[ mat.map.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.map.image, ext )
});
mtlOutput += 'map_Kd ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Kd ' + map_names[ mat.map.uuid ] + '.png' + '\n';
}
}
}
if ( mat.specularMap && mat.specularMap.type === 1009 && mat.specularMap.image ) {
if ( mat.specularMap.image.src || mat.specularMap.image.data ) {
if ( map_uuids.includes( mat.specularMap.uuid ) === false ) {
name = 'specularMap' + count;
map_uuids.push( mat.specularMap.uuid );
map_names[ mat.specularMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.specularMap.image, ext )
});
mtlOutput += 'map_Ks ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Ks ' + map_names[ mat.specularMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.emissiveMap && mat.emissiveMap.type === 1009 && mat.emissiveMap.image ) {
if ( mat.emissiveMap.image.src || mat.emissiveMap.image.data ) {
if ( map_uuids.includes( mat.emissiveMap.uuid ) === false ) {
name = 'emissiveMap' + count;
map_uuids.push( mat.emissiveMap.uuid );
map_names[ mat.emissiveMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.emissiveMap.image, ext )
});
mtlOutput += 'map_Ke ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Ke ' + map_names[ mat.emissiveMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.bumpMap && mat.bumpMap.type === 1009 && mat.bumpMap.image ) {
if ( mat.bumpMap.image.src || mat.bumpMap.image.data ) {
if ( map_uuids.includes( mat.bumpMap.uuid ) === false ) {
name = 'bumpMap' + count;
map_uuids.push( mat.bumpMap.uuid );
map_names[ mat.bumpMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.bumpMap.image, ext )
});
if ( mat.bumpScale === 1 ) {
mtlOutput += 'map_bump ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_bump -bm ' + mat.bumpScale + ' ' + name + '.png' + '\n';
}
} else {
if ( mat.bumpScale === 1 ) {
mtlOutput += 'map_bump ' + map_names[ mat.bumpMap.uuid ] + '.png' + '\n';
} else {
mtlOutput += 'map_bump -bm ' + mat.bumpScale + ' ' + map_names[ mat.bumpMap.uuid ] + '.png' + '\n';
}
}
}
}
if ( mat.lightMap && mat.lightMap.type === 1009 && mat.lightMap.image ) {
if ( mat.lightMap.image.src || mat.lightMap.image.data ) {
if ( map_uuids.includes( mat.lightMap.uuid ) === false ) {
name = 'lightMap' + count;
map_uuids.push( mat.lightMap.uuid );
map_names[ mat.lightMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.lightMap.image, ext )
});
mtlOutput += 'map_Pl ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pl ' + map_names[ mat.lightMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.metalnessMap && mat.metalnessMap.type === 1009 && mat.metalnessMap.image ) {
if ( mat.metalnessMap.image.src || mat.metalnessMap.image.data ) {
if ( map_uuids.includes( mat.metalnessMap.uuid ) === false ) {
name = 'metalnessMap' + count;
map_uuids.push( mat.metalnessMap.uuid );
map_names[ mat.metalnessMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.metalnessMap.image, ext )
});
mtlOutput += 'map_Pm ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pm ' + map_names[ mat.metalnessMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.roughnessMap && mat.roughnessMap.type === 1009 && mat.roughnessMap.image ) {
if ( mat.roughnessMap.image.src || mat.roughnessMap.image.data ) {
if ( map_uuids.includes( mat.roughnessMap.uuid ) === false ) {
name = 'roughnessMap' + count;
map_uuids.push( mat.roughnessMap.uuid );
map_names[ mat.roughnessMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.roughnessMap.image, ext )
});
mtlOutput += 'map_Pr ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pr ' + map_names[ mat.roughnessMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.displacementMap && mat.displacementMap.type === 1009 && mat.displacementMap.image ) {
if ( mat.displacementMap.image.src || mat.displacementMap.image.data ) {
if ( map_uuids.includes( mat.displacementMap.uuid ) === false ) {
name = 'displacementMap' + count;
map_uuids.push( mat.displacementMap.uuid );
map_names[ mat.displacementMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.displacementMap.image, ext )
});
mtlOutput += 'map_Pd ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pd ' + map_names[ mat.displacementMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.normalMap && mat.normalMap.type === 1009 && mat.normalMap.image ) {
if ( mat.normalMap.image.src || mat.normalMap.image.data ) {
if ( map_uuids.includes( mat.normalMap.uuid ) === false ) {
name = 'normalMap' + count;
map_uuids.push( mat.normalMap.uuid );
map_names[ mat.normalMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.normalMap.image, ext )
});
mtlOutput += 'norm ' + name + '.png' + '\n';
} else {
mtlOutput += 'norm ' + map_names[ mat.normalMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.alphaMap && mat.alphaMap.type === 1009 && mat.alphaMap.image ) {
if ( mat.alphaMap.image.src || mat.alphaMap.image.data ) {
if ( map_uuids.includes( mat.alphaMap.uuid ) === false ) {
name = 'alphaMap' + count;
map_uuids.push( mat.alphaMap.uuid );
map_names[ mat.alphaMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.alphaMap.image, ext )
});
mtlOutput += 'map_d ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_d ' + map_names[ mat.alphaMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.aoMap && mat.aoMap.type === 1009 && mat.aoMap.image ) {
if ( mat.aoMap.image.src || mat.aoMap.image.data ) {
if ( map_uuids.includes( mat.aoMap.uuid ) === false ) {
name = 'ambientMap' + count;
map_uuids.push( mat.aoMap.uuid );
map_names[ mat.aoMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.aoMap.image, ext )
});
mtlOutput += 'map_Ka ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Ka ' + map_names[ mat.aoMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.clearcoatMap && mat.clearcoatMap.type === 1009 && mat.clearcoatMap.image ) {
if ( mat.clearcoatMap.image.src || mat.clearcoatMap.image.data ) {
if ( map_uuids.includes( mat.clearcoatMap.uuid ) === false ) {
name = 'clearcoatMap' + count;
map_uuids.push( mat.clearcoatMap.uuid );
map_names[ mat.clearcoatMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.clearcoatMap.image, ext )
});
mtlOutput += 'map_Pccm ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pccm ' + map_names[ mat.clearcoatMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.clearcoatNormalMap && mat.clearcoatNormalMap.type === 1009 && mat.clearcoatNormalMap.image ) {
if ( mat.clearcoatNormalMap.image.src || mat.clearcoatNormalMap.image.data ) {
if ( map_uuids.includes( mat.clearcoatNormalMap.uuid ) === false ) {
name = 'clearcoatNormalMap' + count;
map_uuids.push( mat.clearcoatNormalMap.uuid );
map_names[ mat.clearcoatNormalMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.clearcoatNormalMap.image, ext )
});
mtlOutput += 'map_Pccnm ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pccnm ' + map_names[ mat.clearcoatNormalMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.clearcoatRoughnessMap && mat.clearcoatRoughnessMap.type === 1009 && mat.clearcoatRoughnessMap.image ) {
if ( mat.clearcoatRoughnessMap.image.src || mat.clearcoatRoughnessMap.image.data ) {
if ( map_uuids.includes( mat.clearcoatRoughnessMap.uuid ) === false ) {
name = 'clearcoatRoughnessMap' + count;
map_uuids.push( mat.clearcoatRoughnessMap.uuid );
map_names[ mat.clearcoatRoughnessMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.clearcoatRoughnessMap.image, ext )
});
mtlOutput += 'map_Pccrm ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pccrm ' + map_names[ mat.clearcoatRoughnessMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.sheenColorMap && mat.sheenColorMap.type === 1009 && mat.sheenColorMap.image ) {
if ( mat.sheenColorMap.image.src || mat.sheenColorMap.image.data ) {
if ( map_uuids.includes( mat.sheenColorMap.uuid ) === false ) {
name = 'sheenColorMap' + count;
map_uuids.push( mat.sheenColorMap.uuid );
map_names[ mat.sheenColorMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.sheenColorMap.image, ext )
});
mtlOutput += 'map_Pshcm ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pshcm ' + map_names[ mat.sheenColorMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.sheenRoughnessMap && mat.sheenRoughnessMap.type === 1009 && mat.sheenRoughnessMap.image ) {
if ( mat.sheenRoughnessMap.image.src || mat.sheenRoughnessMap.image.data ) {
if ( map_uuids.includes( mat.sheenRoughnessMap.uuid ) === false ) {
name = 'sheenRoughnessMap' + count;
map_uuids.push( mat.sheenRoughnessMap.uuid );
map_names[ mat.sheenRoughnessMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.sheenRoughnessMap.image, ext )
});
mtlOutput += 'map_Pshrm ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pshrm ' + map_names[ mat.sheenRoughnessMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.specularIntensityMap && mat.specularIntensityMap.type === 1009 && mat.specularIntensityMap.image ) {
if ( mat.specularIntensityMap.image.src || mat.specularIntensityMap.image.data ) {
if ( map_uuids.includes( mat.specularIntensityMap.uuid ) === false ) {
name = 'specularIntensityMap' + count;
map_uuids.push( mat.specularIntensityMap.uuid );
map_names[ mat.specularIntensityMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.specularIntensityMap.image, ext )
});
mtlOutput += 'map_Psim ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Psim ' + map_names[ mat.specularIntensityMap.uuid ] + '.png' + '\n';
}
}
}
if ( mat.specularColorMap && mat.specularColorMap.type === 1009 && mat.specularColorMap.image ) {
if ( mat.specularColorMap.image.src || mat.specularColorMap.image.data ) {
if ( map_uuids.includes( mat.specularColorMap.uuid ) === false ) {
name = 'specularColorMap' + count;
map_uuids.push( mat.specularColorMap.uuid );
map_names[ mat.specularColorMap.uuid ] = name;
textures.push( {
name,
ext,
data: imageToData( mat.specularColorMap.image, ext )
});
mtlOutput += 'map_Pscm ' + name + '.png' + '\n';
} else {
mtlOutput += 'map_Pscm ' + map_names[ mat.specularColorMap.uuid ] + '.png' + '\n';