Jack, make sure ZOOM is 100% up to date! If so, click the little carrot left to the camera button (lower left) and chose "OBS Virtual Camera" and your camera input.
Nope. That LEAVES one corner unmasked, but does not mask only a corner. So far, I have found no way to mask only a corner.Yep! Right click your source and click "filters". In your filters pop up, click magic mask. You can adjust left, right, up, and down. Just move it left and up so it covers one corner. (Or where ever you need your facade to be.)
Struggling to get it to work. when i go to filters in OBS, Magic Mask is not in the drop down menu