I did all that previously but I can never get the OBS Virtual Camera to show up in powerpoint (see screenshots...I'm running windows 10 on a Mac). It appears that when OBS is running, it gets an exclusive "lock" on the built in camera (Facetime HD in this case) OBS Virtual camera is not available in powerpoint nor is the Facetime camera anymore (see screenshots), just two other virtual cameras from other apps which do show up for some reason. OBS Virtual Camera is also not available to other apps (at least in windows...on the Mac OS OBS Virtual Camera is available, but unfortunately Powerpoint slideshow video capture is not enabled on the Mac, only audio).
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