A surface computing device is described which has a surface which can be switched between transparent and diffuse states. When the surface is in its diffuse state, an image can be projected onto the surface and when the surface is in its transparent state, an image can be projected through the surface and onto an object. In an embodiment, the image projected onto the object is redirected onto a different face of the object, so as to provide an additional display surface or to augment the appearance of the object. In another embodiment, the image may be redirected onto another object.