Computer-implemented method, computer, and program for rendering a three-dimensional object in a virtual reality space

A computer configured to be communicable with a position detection device that includes a drawing surface and that, in operation, detects a position of an electronic pen on the drawing surface, the computer comprising:

• a control unit,
• wherein the control unit, in operation,
• renders, in a virtual reality space, a first object that is a three-dimensional object,
• renders, near the first object, a display surface that is a three-dimensional object,
• renders, on the display surface, a three-dimensional line that is a three-dimensional object generated based on the position of the electronic pen on the drawing surface, wherein the position of the electronic pen is detected by the position detection device,
• outputs the first object, the display surface, and the three-dimensional line which are the three-dimensional objects, to a display;
• obtains first correspondence information indicating a correspondence between a first coordinate system defined on the drawing surface and a second coordinate system defined on the display surface;
• obtains second correspondence information indicating a correspondence between the second coordinate system and a third coordinate system indicating the virtual reality space;
• and
• converts the position of the electronic pen into a position in the third coordinate system based on the first correspondence information and the second correspondence information.

A non-transitory computer-readable medium including a computer-executable program for a computer configured to be communicable with a position detection device that includes a drawing surface and that, in operation, detects a position of an electronic pen on the drawing surface, the program causing the computer to perform processing of:

• rendering, in a virtual reality space, a first object that is a three-dimensional object;
• rendering, near the first object, a display surface that is a three-dimensional object;
• rendering, on the display surface, a three-dimensional line that is a three-dimensional object generated based on the position of the electronic pen on the drawing surface, wherein the position of the electronic pen is detected by the position detection device;
• outputting the first object, the display surface, and the three-dimensional line which are the three-dimensional objects, to a display;
• obtaining first correspondence information indicating a correspondence between a first coordinate system defined on the drawing surface and a second coordinate system defined on the display surface;
• obtaining second correspondence information indicating a correspondence between the second coordinate system and a third coordinate system indicating the virtual reality space;
• and
• converting the position of the electronic pen into a position in the third coordinate system based on the first correspondence information and the second correspondence information.