The sequential steps of producing a basic photogrammetric model. From top to bottom, the initial alignment of images and point cloud generation. Next the dense point cloud, followed by blank mesh interpolated from the dense points. The textured mesh uses the pixel values from the original images to assign color values across the surface of the solid mesh. This model used 572 images to render a nearly complete representation of schooner John J. Audubon, which sank in 1854. At the time of its sinking, the schooner was carrying a cargo of railroad iron which can be seen scattered on deck (along with masts and rigging) and around the vessel on the lake floor.