Interesting! I never even noticed that before. Trying to do what the manual says: Brought in a background picture. Made a new group on the front face of a Ball. Assigned it a Material. Hit the "perspective UV" button while the new group was selected. (Left picture) Result is in the right picture: the group magically takes on the part of the picture that was behind it, with the texture spread out so that it looks right in its original position. When the ball is rotated or scaled, of course, the projection looks strange. Seems like this would be very useful for making world globes, but not so useful for faces and such......

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