I am developing an AR application, with Vuforia ImageTarget I added a QR code to be scanned. When scan the qr code I want my 3d model appear with fixed point and scale on the screen and do not track ImageTarget anymore.

The problem involves mapping barcodes with their respective 3D models, so that when a specific barcode is scanned, its corresponding 3D model is superimposed on the object until the barcode is no longer in view and also seamlessly switches between the associated 3D models based on the scanning of their respective barcodes.