my english is bad so ill try to describe it as best as i can ..
i ve always wondered how the level-run-around works in generic..
for example: if you run around in a city and find some stairs and you decide to go them up (slaps myself, silly english >_<) it feels or looks like a bit 3D.. but the background is 2D.. how does this work in generic..
i only need a starting thought..
like.. maybe there is some grid all over the background
(invisible of course) or something like this..