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Drawing overlay on screen from output of another computer

Joined
Oct 16, 2017
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I know that I can get data from another computer (via ethernet cable, or USB cable etc.) and draw the overlay in the computer that I am using locally but that is not what I want. I do not want any software involvement in the computer that I am using.
I am wondering if I can draw overlay with the help of a projector or by combining video outputs from two computers into a single display. Is there such a project or a method that you know of?
 

newtekie1

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Two projectors pointed at the same screen.
 
Joined
Oct 16, 2017
Messages
46 (0.06/day)
Two projectors pointed at the same screen.
Is it possible to do it with a single projector? For example, as I am playing the game, the projector will draw the overlay onto my gaming monitor. I am wondering if this is possible.
 
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