ShadoCookies: Creating user viewpoint-dependent information displays on edible cookies

In this paper, we propose a proof-of-concept fabrication method to transform edible cookies into information displays. The proposed method encodes the surface of cookie dough so that the displayed information changes with the viewpoint. We use a computational design method where small holes are bored into cookie dough at specific angles to create shapes that are only visible from a given perspective. This method allows for selective switching of information depending on the viewpoint position. We investigate the effects of baking time, hole depth, azimuth angle changes on the presented image, and select the appropriate hole spacing based on the number of presented images. Finally, we demonstrate the results and use cases of visualizing information on cookies.