const button1 = document.getElementById('btn1');
        const button2 = document.getElementById('btn2');
        Hydreigon.ModelViewer.create(document.body, {
            "autoStart": true,
            "scenes": [{
                "url": "https://hydreigon-publish.cdn.bcebos.com/sdk-index/assets/model/RobotExpressive.glb",
                "offset": [0, -10, 0]
            }, {
                "url": "https://hydreigon-publish.cdn.bcebos.com/sdk-index/assets/model/robot/scene.gltf",
                "offset": [0, -20, 0]
            }]
        }).then(app => {
            app.addEventListener('mount', () => {
                button1.onclick = () => {
                    app.jump(1);
                };
                button2.onclick = () => {
                    app.jump(0);
                };
            });
        });