Webcam+networking

Hello,
I am creating a 3d game and just added a webcam. I managed to have it posted on a "quad" in front of each player but I don't know how to get everyone to see each other's webcams. For the moment each player sees his webcam and the others move but instead of where the webcam should be displayed he only sees a gray area. How should I do to network the display of this wecam?
Thank you in advance.

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Here is a screenshot (on the right the webcam of the local player and on the left the player on another computer)

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6525516--736635--upload_2020-11-15_13-8-25.jpg