The mirrored painting option that came out this past year was
appreciated but a little lacking since it's just shy of giving people
the option to paint tiled patterns. I've found people requesting this
feature for the past 10 years. It would be extremely useful for game
designers, textile artists, graphic designers, you name it.
should be an option (probably just an addition to the existing mirrored
painting feature, where if the brush passes through one side of the
canvas, it emerges from the opposite side, thus creating an instantly
tiled image that can be modified in real time.
The only current
workaround is to keep using the offset tool which is especially
un-helpful for images that need to lock into one another.
free painting applications have this feature and it's been around for
at least 5 or 6 years now in Corel Painter. Just don't see why Photoshop
can't get around to this, especially since they went through the
trouble of adding the mirrored painting feature.