如何在three.js中将3D模型的面的形状转换为2DSVG？

var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

var loader = new THREE.OBJLoader();
loader.load('model.obj', function (object) {
    scene.add(object);
});

var renderTarget = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);

var svgRenderer = new THREE.SVGRenderer();
svgRenderer.setSize(window.innerWidth, window.innerHeight);
svgRenderer.setRenderTarget(renderTarget);

renderer.render(scene, camera);

var svgData = svgRenderer.domElement.outerHTML;