I've added the Starfield image from Apple's World sample code to the Progressive immersive project template, and I've experimented with a few other images I had around. I have a few questions:
(1) Lighter shots look fairly pixelated. Does Apple recommend any minimum/maximum resolutions for images used for the giant sphere? (I noticed Starfield is 4096x4096)
(2) I just put the other images in the 2x well for the image set. Should I put other images in their own 2x well no matter the DPI of the image?
(3) Apple's Starfield image is square, but skybox images I've used before tend to be much wider (with the top and bottom areas distorted). Is there a particular aspect ratio I should be using?
(4) In at least one case, I think the center of the image was rotated to the right by about 20 degrees. Is this expected? Could it have been an artifact of the image's size or aspect ratio?
