GetWorldCorners returns the positions of the corners of a RectTransform in world space. It drives me nuts that I can’t just get the order of the corners in the Get World Corners array by searching for it in Google. To fix this, I checked it out myself. Next time you need to know which is which from the Get World Corners array, you’ll find it here.
Order of GetWorld Corners:
0 – Bottom Left
1 – Top Left
2 – Top Right
3 – Bottom Right
I hope this helps someone else out. If nothing else, I’m sure it’ll help me later.