Boundary setting device, boundary setting method, and program

A boundary setting method comprising:

• setting a boundary surface for delimiting a permissible region that is a region which is located inside a real space and in which a user wearing a head-mounted display is permitted to exist and an impermissible region that is a region which is located inside the real space and in which the user is not permitted to exist;
• and
• causing a portion or a whole of a virtual object representing the boundary surface to be displayed on the head-mounted display,
• wherein the boundary surface includes a first boundary line having a first height and a second boundary line having a second height, and
• a portion or all of the first boundary line is different from the second boundary line, wherein:
• according to an operation of setting the first boundary line and the second boundary line, the setting includes setting the boundary surface including the first boundary line and the second boundary line, and
• according to the operation of setting the first boundary line and the second boundary line, the setting includes setting the boundary surface that, for a height lower than the first height, includes a boundary line obtained by parallel-shifting of the first boundary line and that, for a height higher than the second height, includes a boundary line obtained by parallel-shifting of the second boundary line.

A non-transitory, computer readable storage medium containing a computer program, which when executed by a computer, causes the computer to perform a boundary setting method by carrying out actions, comprising:

• setting a boundary surface for delimiting a permissible region that is a region which is located inside a real space and in which a user wearing a head-mounted display is permitted to exist and an impermissible region that is a region which is located inside the real space and in which the user is not permitted to exist;
• and
• causing a portion or a whole of a virtual object representing the boundary surface to be displayed on the head-mounted display,
• wherein the boundary surface includes a first boundary line having a first height and a second boundary line having a second height, and
• a portion or all of the first boundary line is different from the second boundary line, wherein:
• according to an operation of setting the first boundary line and the second boundary line, the setting includes setting the boundary surface including the first boundary line and the second boundary line, and
• according to the operation of setting the first boundary line and the second boundary line, the setting includes setting the boundary surface that, for a height lower than the first height, includes a boundary line obtained by parallel-shifting of the first boundary line and that, for a height higher than the second height, includes a boundary line obtained by parallel-shifting of the second boundary line.