Three.js :如何将3DJSON模型添加到立方体网格的一个面

<script src="https://cdn.jsdelivr.net/npm/three@0.132.0/build/three.min.js"></script>

var scene = new THREE.Scene();
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

var geometry = new THREE.BoxGeometry(1, 1, 1);
var material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
var cube = new THREE.Mesh(geometry, material);
scene.add(cube);

var loader = new THREE.JSONLoader();
loader.load('model.json', function (geometry) {
    var material = new THREE.MeshBasicMaterial({ color: 0xff0000 });
    var model = new THREE.Mesh(geometry, material);
    cube.add(model);
});