archicad

archicad is a 3D modeling program, designed for architects, to build housing plans in 2D, as well as 3D models at the same time. the models have textures, like brick or paint and can be rendered and animated for walk-through videos of the housing project. no more drawing by hand or using autocad. autocad thinks and draws in lines. archicad thinks and draws in objects, like windows and doors. when you place an object, like a window, in a wall, archicad knows to erase that portion of the wall and does it automatically. it even does this when you move a window or door.
cool stuff.