First: watch the shaky video, it’s all spoilers here on out.
On first view of this clip by Benjamin Dalsgaard Hughes, I was convinced the skewed perspective of the painting was some kind of digital trick on an HD display, somewhat similar to the dancing shadows we saw a few months ago. But then, the sudden disorienting reveal. What! This particular optical illusion is what’s known as reverse perspective painting, where objects (usually rooms) are painted on a physically skewed surface resulting in images that appear in reverse when viewed head on.
The painting above is by Brian Williams and is currently on view as part of a show on 3D art that just opened at The Gallery Ice in Windsor. Perhaps the most well-known artist working with forced perspective is Patrick Hughes. Here he is discussing his own work at Flowers Gallery a few years ago. Love the bit at the end where the entire crowd is squatting up and down to view the painting.