here: this screenshots are from kawaks .. not from mugen .. the difference between the same spot (chunli's shadow rightmost pixel) in the beginning of the stage, and in the end of it, should be how much the camera moved .. I used one of the chars as refence because their deltas are equal to 1, so it would need no adjustment ..
in my stage the right bound is 196, 5 pixels from 191 due to rounding, but I really do not care about this =P
the way I calculated the delta from the floor is pretty much the same, differing only that I had to compare how much the camera moved, to how much the floor moved, so that could have the delta (camera shift / floor shift)
VIB