1. A method for performing an image-editing operation across multiple perspective planes, comprising: receiving a selection for a source area for the image-editing operation, wherein the source area spans one or more perspective planes; receiving a selection for a destination area for the image-editing operation, wherein the destination area spans one or more perspective planes; defining one or more partial source areas for the one or more perspective planes spanned by the source area; defining one or more partial destination areas for the one or more perspective planes spanned by the destination area; and applying the image-editing operation from each partial source area to each relevant partial destination area.