This is 100% synthy. However, if you use the comma (,) and period (.) to step through all 1,455 photos, you will see certain sections that are disjointed: e.g., front top tunnel arc, front small door, back top tunnel arc, etc. -- these sections are "isolated" -- suddenly the rest of the building disappears and you get only that chunk of the building "floating" in space, against a nothingness background.
I know it's tedious to manually step through 1,455 photos with the (.) key: it would be nice to have a "fast forward" button, or, a way to adjust the speed of the playback, e.g. 10 photos per second, 20 photos per second, etc. then you would be able to spot the disjointed sections more quickly.
Thanks! You guys are still amazing!