Patent ID: 9123180
Filing Date: 2015-09-01
Classification: G06T

Abstract:
1. A method for displaying a shadow of a 3D virtual object, comprising steps of: (a) acquiring information on a viewpoint of a user looking at a 3D virtual object displayed in a specific location in 3D space by a wall display device; (b) determining a location and a shape of a shadow of the 3D virtual object to be displayed by referring to information on the viewpoint of the user and the information on a shape of the 3D virtual object; and (c) allowing the shadow of the 3D virtual object to be displayed by at least one of the wall display device and a floor display device which corresponds to the wall display device by referring to the determined location and the determined shape of the shadow of the 3D virtual object, wherein, at the step (c), (1) if at least part of the shadow of the 3D virtual object is determined to be located near the user based on a boundary line between a display surface of the wall display device and a display surface of the floor display device, the at least part of the shadow of the 3D virtual object is allowed to be displayed through the floor display device, and (2) if at least part of the shadow of the 3D virtual object is determined to be located far from the user based on the boundary line therebetween, the at least part of the shadow of the 3D virtual object is allowed to be displayed through the wall display device.