I’m following the documents trying to to set up LED digital extension and AR at the same time.
but if the AR machines gets the video signal directly from camera, that means there are no digital extension, is it possible the AR machine to get signal that includes the digital extension contents, maybe output a signal that includes digital extension from the render machines to AR machine?
Yes, there is a similar solution described here: https://aximmetry.com/learn/tutorials/for-studio-operators/using-led-walls-and-ar-together/
Basically, you output a rendered LED video and tracking from one machine into an AR machine.
If that is not enough, can you describe in detail what do you want to achieve? Maybe there are better solutions or we can detail additional steps.