Not always it's possible to be in the right time and place to shot a 3D picture with 2 cameras.
However, in many cases it is possible to convert an image (drawing, layered Photoshop file) or a traditional 2D flat image in a 3D picture to be printed or projected and viewed with
our 3D viewers.
Furthermore, we can add new elements which were not present in the original scene (text, images, details from other photos) emphasizing the three-dimensional effect and containing advertising messages.