Virtual object display control device, virtual object display system, virtual object display control method, and storage medium storing virtual object display control program

A virtual object display control method comprising the steps of:

• receiving real space information indicating a real space;
• judging a position of a viewpoint of an observer based on the real space information;
• judging a position and a shape of a real object based on the real space information;
• setting image information on a virtual object based on the position of the viewpoint and the position and the shape of the real object;
• judging whether a guidance display is necessary or not based on the position of the viewpoint, the position and the shape of the real object, and the image information on the virtual object and setting image information on the guidance display when the guidance display is necessary;
• and
• outputting the image information on the virtual object and the image information on the guidance display,
• wherein, at the judging of whether the guidance display is necessary or not, it is judged that the guidance display is necessary when a whole or part of the virtual object is hidden by the real object as viewed from the position of the viewpoint.

A non-transitory computer-readable storage medium storing a virtual object display control program that causes a computer to execute:

• receiving real space information indicating a real space;
• judging a position of a viewpoint of an observer based on the real space information;
• judging a position and a shape of a real object based on the real space information;
• setting image information on a virtual object based on the position of the viewpoint and the position and the shape of the real object;
• judging whether a guidance display is necessary or not based on the position of the viewpoint, the position and the shape of the real object, and the image information on the virtual object and setting image information on the guidance display when the guidance display is necessary;
• and
• outputting the image information on the virtual object and the image information on the guidance display,
• wherein, at the judging of whether the guidance display is necessary or not, it is judged that the guidance display is necessary when a whole or part of the virtual object is hidden by the real object as viewed from the position of the viewpoint.