I have been playing around with the idea of drawing directly onto the pixels of the Vision Pro, as I am working on a telepresence app that streams a live stereoscopic feed from an articulated robot neck to the wearer. I was playing around in the Compositor Services demo and modified it to show the following. I created a grid pattern using normalized device coordinates (-1 to 1) and it looks great when it shows up in the simulator as shown below. I wanted to see the effects of lens distortion on the image so I launched this script inside the actual Vision Pro, it seems that each eye has only a portion of this screen visible. I have included a screen capture of a screen recording inside of the Vision Pro when running this modified app. The lines appear straight, which says to me that there must be some automatic pre-distortion correction applied (similar to the image shown below taken from an AVP teardown that I cannot link here). However, I am wondering why the grid appears cropped and what the bounds of the frame are defined by?