The team at Instructables has a printer that transforms black and white prints into unique three-dimensional worlds. The Objet Connex500 3d printer uses a rigid, semitransparent white material that don’t look like much when seen from the side, but when lit from behind the images gain texture and dimensionality. I don’t know much about any of this, but I do know awesome looking pictures when I see them. Instructable’s Amanda Ghassaei explains:
By varying the thickness of a region of this semitransparent print you can control the amount of light that is able to pass through, thereby controlling the brightness (thinner regions of material will appear brighter and thicker regions darker). In this project, I’ve converted each individual greyscale pixel of an image to thickness, allowing me to precisely reproduce any greyscale image.
For a more in depth explanation of the process, check out her original post.