Open any real estate website and you’ll find photos of rooms that look ready to move into: a sofa angled toward the fireplace, a rug that fits the floor perfectly, a plant catching light from the window. Surprisingly often, none of that furniture is real. The room was empty when it was photographed, and software added everything afterward. This is called virtual staging, and it has quietly become standard in real estate marketing.
Behind every virtually staged photo is a stack of programming ideas: coordinates, shapes, measurements, collision checks, scaling, perspective, and, in newer tools, artificial …