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

A computing device comprising:

• a display device;
• one or more processors;
• and
• one or more non-transitory computer-readable media to store instructions executable by the one or more processors to perform operations comprising:
• receiving stylus sensor data from one or more sensors located in a stylus;
• determining, based on the stylus sensor data, a stylus height of a tip of the stylus from the display device;
• determining, based on the stylus sensor data, a first stylus angle of the stylus relative to a top surface of the display device;
• determining, based on the stylus sensor data, a second stylus angle of the stylus relative to a midline of the display device;
• determining an area that illuminated by virtual light emitted from the tip of the stylus;
• determining one or more content items that are being displayed in the display device and within the area;
• determining one or more virtual heights, wherein an individual virtual height of the one or more virtual heights corresponds to an individual content item of the one or more content items;
• displaying, on the display device, one or more virtual shadows corresponding to the one or more content items based at least in part on:
• the stylus height;
• the first stylus angle relative to the top surface of the display device;
• and
• the second stylus angle relative to a midline of the display device.

A method comprising:

• receiving, by a computing device, stylus sensor data from one or more sensors located in a stylus;
• determining, by the computing device and based on the stylus sensor data, a stylus height of a tip of the stylus from a display device connected to the computing device;
• determining, by the computing device and based on the stylus sensor data, a first stylus angle of the stylus relative to a top surface of the display device;
• determining, by the computing data based on the stylus sensor data, a second stylus angle of the stylus relative to a midline of the display device;
• determining, by the computing data, an area that illuminated by virtual light emitted from the tip of the stylus;
• determining, by the computing device, one or more content items that are being displayed in the display device and within the area;
• determining, by the computing device, one or more virtual heights, wherein an individual virtual height of the one or more virtual heights corresponds to a content item of the one or more content items;
• displaying, on the display device, one or more virtual shadows corresponding to the one or more content items based at least in part on:
• the stylus height;
• the first stylus angle relative to the top surface of the display device;
• and
• the second stylus angle relative to a midline of the display device.