3D scanning by dipping into a liquid
I expected they'd be either visually watching the changing contours of an opaque liquid, or somehow using refraction to get multiple visual angles of the same features, but……they're repeatedly dipping it, and using the volume displacement to reconstruct the shape. Amazing. The site is hammered right now so I can't get more details: anyone see how many dips are required to get the highest-detail models they show on the landing page?