How to take photo from quest3 camera

I am planning to implement this using the Meta XR Core. When a button on the Meta Quest controller is pressed, I want to take a photo with the Meta Quest 3 camera and display that photo on a Plane. Using the passthrough functionality, I am able to display the external video as the background. However, at the moment, the Plane displays objects from within Unity, but the background turns black. Could you please advise me on how to resolve this issue?