var parent = this.scene.getElementById("objs");
var xrFrameSystem = wx.getXrFrameSystem();
var o = this.scene.createElement(xrFrameSystem.XRGLTF);
o.setAttribute("node-id","obj");
o.setAttribute("position","0 0 0");
o.setAttribute("rotation","0 0 0");
o.setAttribute("scale","0.2 0.2 0.2");
o.setAttribute("model","gltf-damageHelmet");
o.event.add("touch-shape",this.touchFunction);
o.setAttribute("mesh-shape","");

动态生成GLTF模型并设置mesh-shape，touchFunction方法中修改了该对象的position，但似乎mesh没有跟随移动，因为只有点击初始位置才会触发点击事件