sentences:  This process is known as photogrammetry.The user "pinned" the corners of wireframe primitives over real world shapes such as buildings, boxes, cylinders and other geometric shapes (it could not really handle organic shapes), the application then dynamically extrapolated the perspective, angles and shapes and produced a 3D realization, applying the textures from the photograph(s) onto the models.Sides of the models unseen in the original photograph could be "mirrored" from the visible sides.