I know about letterboxing, but ideally I need my project to work on devices with a variety of aspect ratios and resolutions - due to the style, it should run in device native res without any black bars, filling up the whole screen.
Currently, I have a starting event group that checks for resolution and distorts every sprite according to that - it is not efficient nor elegant and that group will continue to grow as the number of unique distortions increases, but it works...
However, I believe that now, with a fully controllable 3d camera, distorting some scene elements non-uniformly, based on resolution, is not really the proper behavior.