//摄像机
        let cameraObject = new paper.GameObject();
        cameraObject.tag = “MainCamera”;
        let camera = cameraObject.addComponent(egret3d.Camera);
        camera.cullingMask = egret3d.CullingMask.Everything;
        // camera.near = 0.1; 相机到近裁剪面距离
        // camera.far = 100; 相机到远裁剪面距离
         camera.order = 0;
         camera.backgroundColor = new egret3d.Color(0.0, 0.0, 0.0, 1.0);
        // camera.clearOption_Color = false; // 渲染前不清除颜色缓冲,保证上一个相机的绘制结果不会被清除
        // camera.clearOption_Depth = true; // 清除深度缓冲,避免深度缓冲冲突
         cameraObject.transform.setLocalPosition(0, 6, 20);
        // cameraObject.transform.setRotation(new egret3d.Quaternion(0,0,0));
         cameraObject.transform.lookAt(new egret3d.Vector3(0,4,0));