Displaying a shadow of a stylus or of content on a display device

In some examples, a computing device may receive stylus sensor data from one or more sensors in a stylus that is used to interact with the computing device. The computing device may determine, based on the stylus sensor data, (i) a stylus height of a tip of the stylus from a display device and (ii) one or more stylus angles of the stylus relative to the display device. The computing device may display, on the display device, a virtual shadow of the stylus at a location based at least in part on the stylus height, the stylus angles, and a location of a virtual light source. The computing device may display, on the display device, one or more virtual shadows of content items corresponding to the stylus acting as a virtual light source.