"Don't render Duplicates if they would touch this zone" zone.

Yeah, that's a mouthful but I have no idea what it would be called XD

This feature would allow is to very easily make areas duplicates render in.

For example, make a rain painting, turn on around-camera and you get very easy rain. But it will appear inside buildings and you tend to need to do shenanigans to work around that.

Or if you're using around-camera to make a field of stars that you're zooming through, from time to time a star will flash across the entire screen because that instance happens to run into you.

Or making a star field for a night's sky. Using around-camera or inside-sphere makes sense, but will render stars way too close to the player. Adding such a zone to the head tracker or something with a huge sphere would mean we could use the duplicates easily, but not have them spawn close enough to the player that they notice.

We could essentially punch holes in the duplicates to make sure they don't show up in places that would look weird.