Does Unity Wave SDK support to get passthrough texture on HTV VIVE Elite?

[NeuroEars]

Our team has created a Unity application on the Elite device, equipped with the functionality to stream virtual reality content (specifically, the camera render texture) to mobile devices.

Is there a way to access the passthrough texture using the Unity Wave SDK on the HTC VIVE Elite?

Our goal is to merge the real-world imagery from the passthrough with virtual 3D objects and stream this combined view to the client.

Because the sent streaming does not show the expected real-world image instead of a black background.