Display control method and system for executing the display control method

A method, comprising:

• defining a three-dimensional virtual space including a virtual camera;
• displaying a visual-field image on a head-mounted device based on a visual field of the virtual camera;
• and
• updating the visual-field image in response to a detected movement of the head-mounted device;
• changing a scale of the virtual camera in response to a predetermined condition is satisfied;
• changing a rendering range of the virtual camera in response to changing a scale of the virtual camera;
• updating the visual-field image in response to changing a rendering range of the virtual camera.

A system for controlling a head mounted display (HMD), the system comprising:

• a processor;
• and
• a non-transitory computer readable medium connected to the processor, wherein the non-transitory computer readable medium contains instructions for execution by the processor for:
• generating virtual space data for defining a three-dimensional virtual space;
• displaying a visual-field image on the HMD based on a visual field of the virtual space data;
• and
• updating the visual-field image in response to a detected movement of the HMD exceeding a threshold, wherein updating the visual-field image comprises changing a scale of an object in the virtual space by adjusting an angular range of the visual-field image.

A display control method, for execution by a system comprising a head-mounted device, the display control method comprising:

• generating virtual space data for defining a three-dimensional virtual space;
• defining a virtual camera in the three-dimensional virtual space;
• displaying a visual-field image on the head-mounted device based on a field of view of the virtual camera;
• and
• updating the visual-field image in response to a detected movement of the head-mounted device exceeding a threshold, wherein updating the visual-field image comprises changing a scale of an object in the virtual space by changing a viewpoint of the virtual camera while maintaining a location of a center point of the virtual camera in the three-dimensional virtual space.