2d camera controller whole screen transition

every camera controller i find online to reference has the camera following the player. I want a camera that moves a whole screen when the player crosses the edge of the camera. so my question is are there any methods to get a reliable reference to use for transform.position and such? I just really want to be able to get the width of the screen in transform units. the only method to get the width of the screen ive come across gives the measurement in pixels which i find unhelpful.

 

In case anyone comes across this and is also wondering i ended up sorting the issue out with camera.ScreenToWorldPoint and vice versa to convert pixel location to world location, not my favorite fix, but a fix.

 

Hey @MorkLozer, I think you talking about switch between Screen Boxes like in this video:

Watch in 2:00.