<ion-content>
 <a-scene  *ngIf="iosReady"
       renderer="alpha: true;
               colorManagement: true;
               sortObjects: true;
               physicallyCorrectLights: true;
               maxCanvasWidth: 1920;
               maxCanvasHeight: 1920;">
  <a-gltf-model  position="1 1 -4"
       src="/assets/models/LibertStatue.gltf" ></a-gltf-model>
 </a-scene>
</ion-content>`

const cameraPreviewOpts: CameraPreviewOptions = {
            x: 0,
            y: 0,
            width: window.screen.width,
            height: window.screen.height,
            camera: 'rear',
            tapPhoto: true,
            previewDrag: true,
            toBack: true,
            alpha: 1
        }


        CameraPreview.startCamera(cameraPreviewOpts).then(
            (res) => {
                console.log(res);
            },
            (err) => {
                console.log(err);
            });
    });