Directed by Filip Sterckx for a Belgian band named Willow, this music video for the song “Sweater” is a tour-de-force in 3-D projection mapping. Three projectors were used to beam backgrounds onto the floor and two blank walls, while the singer feigned movement by “strolling” on a treadmill. The video seamlessly takes the guy through multiple settings, down an escalator, across a park, on a boat and into the water with air bubbles rising from his scuba diving gear. Great concept, optical illusions and execution.