text: import {
  	Group,
  	Mesh
  } from 'three';
  
  
  
  function createMeshesFromInstancedMesh( instancedMesh ) {
  
  	const group = new Group();
  
  	const count = instancedMesh.count;
  	const geometry = instancedMesh.geometry;
  	const material = instancedMesh.material;
  
  	for ( let i = 0; i < count; i ++ ) {
  
  		const mesh = new Mesh( geometry, material );
  
  		instancedMesh.getMatrixAt( i, mesh.matrix );
  		mesh.matrix.decompose( mesh.position, mesh.quaternion, mesh.scale );
  
  		group.add( mesh );
  
  	}
  
  	group.copy( instancedMesh );
  	group.updateMatrixWorld(); // ensure correct world matrices of meshes
  
  	return group;
  
  }
  
  function createMultiMaterialObject( geometry, materials ) {
  
  	const group = new Group();
  
  	for ( let i = 0, l = materials.length; i < l; i ++ ) {
  
  		group.add( new Mesh( geometry, materials[ i ] ) );
  
  	}
  
  	return group;
  
  }
  
  function detach( child, parent, scene ) {
  
  	console.warn( 'THREE.SceneUtils: detach() has been deprecated. Use scene.attach( child ) instead.' );
  
  	scene.attach( child );
  
  }
  
  function attach( child, scene, parent ) {
  
  	console.warn( 'THREE.SceneUtils: attach() has been deprecated. Use parent.attach( child ) instead.' );
  
  	parent.attach( child );
  
  }
  
  
  
  export {
  	createMeshesFromInstancedMesh,
  	createMultiMaterialObject,
  	detach,
  	attach,
  };
  