JP6711891B2 - Display control program, display control device, and display control method - Google Patents

Description

The present invention relates to a display control technique, and more particularly to a display control program, a display control device, and a display control method for controlling display on a head mounted display.

A game in which a head-mounted display connected to a game machine can be mounted on the head and the player can operate by playing a controller while watching the screen displayed on the head-mounted display is gaining popularity. With a normal stationary display connected to a game console, the user's field of view extends outside the screen of the display, so that the user may not be able to concentrate on the screen of the display or lack immersiveness in the game. There is. In that respect, mounting a head-mounted display increases the immersive feeling in the video world, and has the effect of further enhancing the entertainment value of the game.

When the virtual three-dimensional space is displayed on the head mounted display, the position far from the viewpoint position is less visible than the position closer to the viewpoint position. The present invention has been made in view of such a situation, and an object thereof is to provide a technique for improving the visibility of an image displayed on a head mounted display.

In order to solve the above problems, a program according to an aspect of the present invention causes a computer to set a viewpoint position and a line-of-sight direction according to a position or a posture of a head-mounted display mounted on a user's head, and to generate a virtual three-dimensional image. When an image generation unit that generates an image to be displayed on the head mounted display by rendering an object arranged in space and an instruction to rotate a game field arranged in a room constructed as a virtual three-dimensional space are acquired, It functions as a rotation control unit that rotates the game field around an axis perpendicular to the game field without rotating the room.

According to the present invention, it is possible to provide a technique for improving the visibility of an image displayed on a head mounted display.

It is a figure which shows the use environment of the game system which concerns on embodiment. 3 is an external view of the head mounted display according to the embodiment. FIG. It is a functional block diagram of a head mounted display. It is an external view of an input device. It is a figure which shows the structure of a game device. It is a functional block diagram of a game device. It is a figure which shows the example of the game screen displayed on the display device of a head mounted display. It is a figure which shows the example of the game screen displayed on the display device of a head mounted display. It is a figure which shows the example of the game screen displayed on the display device of a head mounted display. It is a figure which shows the example of the game screen displayed on the display device of a head mounted display. It is a figure which shows the example of the game screen displayed on the display device of a head mounted display. It is a figure which shows the example of the game screen displayed on the display device of a head mounted display. It is a flow chart which shows the procedure of the game control method concerning an embodiment.

In this embodiment, a display technique using a head mounted display (HMD) will be described. The head-mounted display is a display device that is worn on the user's head so as to cover both eyes of the user, and is for viewing a still image or a moving image displayed on a display screen provided in front of the user's eyes. The target displayed on the head mounted display may be content such as a movie or a television program, but in the present embodiment, an example in which the head mounted display is used as a display device for displaying a game image will be described. To do.

A game device according to an embodiment is an example of a display control device of the present invention, in which a game field is arranged on a table arranged in a virtual three-dimensional space, and a viewpoint position is set above the game field. By rendering the virtual three-dimensional space, a game image including the game field is generated and displayed on the head mounted display. This allows the user to proceed with the game while looking down on the game field from above and ascertaining the situation in the game field. In the game field arranged on the table, the user can easily see the situation on the near side from the viewpoint position of the user, but can hardly see the situation on the far side far from the viewpoint position of the user. Therefore, the present embodiment provides the user with the function of rotating the table on which the game field is arranged around the vertical axis. With this, when the user wants to gaze at the situation in the game field on the back side, the table can be rotated to move the position to be gazed to the near side close to the viewpoint position. The entire game field can be easily viewed while rotating the field. Therefore, the convenience of the user can be improved.

FIG. 1 shows a usage environment of the game system 1 according to the embodiment. The game system 1 includes a game device 10 for executing a game program, an input device 6 for inputting a user's instruction to the game device 10, an imaging device 14 for imaging a real space around the user, and a game device 10. A head mount display 100 that displays the generated first game image and a display device 12 that displays the second game image generated by the game apparatus 10 are provided.

The game device 10 executes a game program based on an instruction input input by the input device 6 or the head mounted display 100, a position or a posture of the input device 6 or the head mounted display 100, and generates a first game image. The second game image is generated and transmitted to the display device 12.

The head mounted display 100 displays the first game image generated in the game device 10. In addition, information regarding the user's input to the input device provided on the head mounted display 100 is transmitted to the game device 10. The head mounted display 100 may be connected to the game apparatus 10 with a wired cable, or may be wirelessly connected with a wireless LAN or the like.

The display device 12 displays the second game image generated in the game device 10. The display device 12 may be a television having a display and a speaker, a computer display, or the like.

The input device 6 has a function of transmitting an instruction input by the user to the game device 10, and is configured as a wireless controller capable of wireless communication with the game device 10 in the present embodiment. The input device 6 and the game device 10 may establish a wireless connection using the Bluetooth (registered trademark) protocol. The input device 6 is not limited to the wireless controller and may be a wired controller connected to the game device 10 via a cable.

The input device 6 is driven by a battery and has a plurality of buttons for inputting instructions for advancing the game. When the user operates the button of the input device 6, the instruction input by the operation is transmitted to the game device 10 by wireless communication.

The image pickup device 14 is a video camera including a CCD image pickup device, a CMOS image pickup device, or the like, and picks up an image of the real space at a predetermined cycle to generate a frame image for each cycle. The imaging device 14 is connected to the game device 10 via a USB (Universal Serial Bus) or another interface. The image captured by the imaging device 14 is used in the game device 10 to derive the positions and orientations of the input device 6 and the head mounted display 100. The image capturing device 14 may be a distance measuring camera or a stereo camera capable of acquiring a distance. In this case, the imaging device 14 can acquire the distance between the imaging device 14 and the input device 6 or the head mounted display 100.

In the game system 1 of the present embodiment, the input device 6 and the head mounted display 100 have a light emitting unit configured to emit light in a plurality of colors. During the game, the light emitting unit emits light in the color instructed by the game device 10 and is imaged by the imaging device 14. The imaging device 14 images the input device 6, generates a frame image, and supplies the frame image to the game device 10. The game device 10 acquires the frame image and derives position information of the light emitting unit in the real space from the position and size of the image of the light emitting unit in the frame image. The game device 10 handles the position information as a game operation instruction and reflects the position information on the game processing, such as controlling the movement of the player's character.

Further, the input device 6 and the head mounted display 100 have an acceleration sensor and a gyro sensor. The detection value of the sensor is transmitted to the game device 10 in a predetermined cycle, and the game device 10 acquires the detection value of the sensor and acquires the attitude information of the input device 6 and the head mounted display 100 in the real space. The game device 10 handles the posture information as a game operation instruction and reflects it in the game processing.

If only the user wearing the head mounted display 100 executes the game, the display device 12 may not be provided and the second game image displayed on the display device 12 may not be generated. Further, when the positional information of the input device 6 and the head mounted display 100 is measured by the acceleration sensor built in the input device 6 and the head mounted display 100, the imaging device 14 may not be provided.

FIG. 2 is an external view of the head mounted display 100 according to the embodiment. The head mounted display 100 includes a main body 110, a head contact portion 112, and a light emitting portion 114.

The main body 110 is equipped with a display, a GPS unit for acquiring position information, an attitude sensor, a communication device, and the like. The head contact unit 112 may be provided with a biometric information acquisition sensor capable of measuring biometric information such as a user's body temperature, pulse rate, blood component, sweating, brain wave, and cerebral blood flow. As described above, the light emitting unit 114 emits light in the color instructed by the game device 10 and functions as a reference for calculating the position of the head mounted display 100 in the image captured by the image capturing device 14.

The head mounted display 100 may be further provided with a camera that captures the eyes of the user. The camera mounted on the head mounted display 100 can detect the user's line of sight, the movement of the pupil, the blink, and the like.

Although the head mounted display 100 will be described in the present embodiment, the display control technique of the present embodiment is not limited to the head mounted display 100 in a narrow sense, and may include glasses, glasses-type displays, glasses-type cameras, headphones, and headsets. (Headphones with microphone), earphones, earrings, ear-hook cameras, hats, hats with cameras, hair bands, etc. can also be applied.

FIG. 3 is a functional configuration diagram of the head mounted display 100. The head mounted display 100 includes an input interface 122, an output interface 130, a backlight 132, a communication control unit 140, a network adapter 142, an antenna 144, a storage unit 150, a GPS unit 161, a wireless unit 162, an attitude sensor 164, and external input/output terminals. The interface 170, the external memory 172, the clock unit 180, the display device 90, and the control unit 160 are provided. These functional blocks can also be realized in various forms by only hardware, only software, or a combination thereof.

The control unit 160 is a main processor that processes and outputs signals such as image signals and sensor signals, and commands and data. The input interface 122 receives an operation signal or a setting signal from an input button or the like and supplies it to the control unit 160. The output interface 130 receives the image signal from the control unit 160 and displays it on the display device 90. The backlight 132 supplies a backlight to the liquid crystal display that constitutes the display device 90.

The communication control unit 140 transmits the data input from the control unit 160 to the outside by wired or wireless communication via the network adapter 142 or the antenna 144. The communication control unit 140 also receives data from the outside by wire or wireless communication via the network adapter 142 or the antenna 144, and outputs the data to the control unit 160.

The storage unit 150 temporarily stores data, parameters, operation signals, and the like processed by the control unit 160.

The GPS unit 161 receives position information from GPS satellites and supplies it to the control unit 160 according to an operation signal from the control unit 160. The wireless unit 162 receives the position information from the wireless base station and supplies it to the control unit 160 in accordance with the operation signal from the control unit 160.

The attitude sensor 164 detects attitude information such as the orientation and inclination of the main body 110 of the head mounted display 100. The attitude sensor 164 is realized by appropriately combining a gyro sensor, an acceleration sensor, an angular acceleration sensor, and the like.

The external input/output terminal interface 170 is an interface for connecting peripheral devices such as a USB (Universal Serial Bus) controller. The external memory 172 is an external memory such as a flash memory.

The clock unit 180 sets time information according to a setting signal from the control unit 160 and supplies time data to the control unit 160.

FIG. 4 is an external view of the input device. FIG. 4A shows an external configuration of the upper surface of the input device. The user operates the input device 6 by gripping the left grip 78b with the left hand and the right grip 78a with the right hand. On the top surface of the housing of the input device 6, a direction key 71 which is an input unit, analog sticks 77a and 77b, and four types of operation buttons 76 are provided. In order to distinguish each of the four types of buttons 72 to 75, different graphics with different colors are written. That is, a red circle is marked on the O button 72, a blue cross is marked on the X button 73, a purple square is marked on the □ button 74, and a green triangle is marked on the Δ button 75. A touch pad 79 is provided in a flat area between the direction key 71 and the operation button 76 on the top surface of the housing. The touch pad 79 also functions as a push-down button that sinks downward when pressed by the user and returns to the original position when the user releases the hand.

A function button 80 is provided between the two analog sticks 77a and 77b. The function button 80 is used to turn on the power of the input device 6 and simultaneously activate the communication function for connecting the input device 6 and the game device 10. After the input device 6 is connected to the game device 10, the function button 80 is also used to cause the game device 10 to display a menu screen.

The SHARE button 81 is provided between the touch pad 79 and the direction key 71. The SHARE button 81 is used to input an instruction from the user to the OS or system software in the game apparatus 10. The OPTIONS button 82 is provided between the touch pad 79 and the operation button 76. The OPTIONS button 82 is used to input a user's instruction to an application (game) executed on the game apparatus 10. Both the SHARE button 81 and the OPTIONS button 82 may be formed as push buttons.

FIG. 4B shows an external configuration of a side surface on the back side of the input device. A touch pad 79 extends from the upper surface of the housing on the upper side of the housing back side of the input device 6, and a horizontally long light emitting section 85 is provided on the lower side of the housing inner side surface. The light emitting unit 85 has red (R), green (G), and blue (B) LEDs, and lights up according to the light emission color information transmitted from the game device 10.

On an inner side surface of the housing, an upper button 83a, a lower button 84a, an upper button 83b, and a lower button 84b are provided at longitudinally symmetrical positions. The upper button 83a and the lower button 84a are operated by the index finger and the middle finger of the user's right hand, respectively, and the upper button 83b and the lower button 84b are operated by the index finger and the middle finger of the user's left hand, respectively. As illustrated, the light emitting portion 85 is provided between the right upper button 83a and the lower button 84a and the left upper button 83b and the lower button 84b, so that the index finger for operating each button Alternatively, the imaging device 14 can appropriately capture an image of the light emitting unit 85 that is turned on without being hidden by the middle finger. The upper button 83 may be configured as a push-type button, and the lower button 84 may be configured as a pivotally supported trigger-type button.

FIG. 5 shows the configuration of the game device 10. The game device 10 includes a main power button 20, a power ON LED 21, a standby LED 22, a system controller 24, a clock 26, a device controller 30, a media drive 32, a USB module 34, a flash memory 36, a wireless communication module 38, and a wired communication module. 40, a subsystem 50, and a main system 60.

The main system 60 includes a main CPU (Central Processing Unit), a memory that is a main storage device, a memory controller, and a GPU (Graphics Processing Unit). The GPU is mainly used for arithmetic processing of the game program. These functions may be configured as a system on chip and formed on one chip. The main CPU has a function of executing the game program recorded in the auxiliary storage device 2.

The subsystem 50 includes a sub CPU, a memory that is a main storage device, a memory controller, and the like, does not include a GPU, and does not have a function of executing a game program. The number of circuit gates of the sub CPU is smaller than that of the main CPU, and the operating power consumption of the sub CPU is smaller than the operating power consumption of the main CPU. The sub CPU operates even while the main CPU is in the standby state, and its processing function is limited in order to keep the power consumption low.

The main power button 20 is an input section through which an operation input is made by a user, is provided on the front surface of the housing of the game apparatus 10, and turns on or off the power supply to the main system 60 of the game apparatus 10. Operated. The power ON LED 21 lights up when the main power button 20 is turned on, and the standby LED 22 lights up when the main power button 20 is turned off.

The system controller 24 detects pressing of the main power button 20 by the user. When the main power button 20 is pressed while the main power is in the off state, the system controller 24 acquires the pressing operation as an “on instruction”, while the main power button is pressed when the main power is in the on state. When the button 20 is pressed, the system controller 24 acquires the pressing operation as an “off instruction”.

The clock 26 is a real-time clock that generates current date and time information and supplies it to the system controller 24, the subsystem 50, and the main system 60.

The device controller 30 is configured as an LSI (Large-Scale Integrated Circuit) that exchanges information between devices like a south bridge. As illustrated, devices such as the system controller 24, the media drive 32, the USB module 34, the flash memory 36, the wireless communication module 38, the wired communication module 40, the subsystem 50, and the main system 60 are connected to the device controller 30. It The device controller 30 absorbs the difference in the electrical characteristics of each device and the difference in the data transfer rate, and controls the timing of data transfer.

The media drive 32 is a drive device in which a ROM medium 44 storing application software such as a game and license information is mounted and driven, and programs and data are read from the ROM medium 44. The ROM medium 44 is a read-only recording medium such as an optical disc, a magneto-optical disc, or a Blu-ray disc.

The USB module 34 is a module that connects to an external device with a USB cable. The USB module 34 may be connected to the auxiliary storage device and the imaging device 14 with a USB cable. The flash memory 36 is an auxiliary storage device that constitutes an internal storage. The wireless communication module 38 wirelessly communicates with the input device 6 using a communication protocol such as a Bluetooth (registered trademark) protocol or an IEEE 802.11 protocol. The wireless communication module 38 is compatible with the third-generation (3rd Generation) digital mobile phone system based on the IMT-2000 (International Mobile Telecommunication 2000) standard defined by the ITU (International Telecommunication Union). It may also be compatible with another generation of digital mobile phone system. The wired communication module 40 performs wired communication with an external device and connects to an external network via the AP 8, for example.

FIG. 6 is a functional configuration diagram of the game device 10. The main system 60 of the game device 10 includes a control unit 310 and a data holding unit 360. The control unit 310 includes a game control unit 311, an instruction input acquisition unit 312, a rotation control unit 313, a direction information display unit 314, and an image generation unit 315.

The data holding unit 360 holds the program data of the game executed on the game device 10, various data used by the game program, and the like.

The instruction input acquisition unit 312 acquires, from the input device 6 or the head mounted display 100, the information regarding the instruction input by the user received by the input device 6 or the head mounted display 100. The game control unit 311 executes the game program and advances the game based on the instruction input by the user acquired by the instruction input acquisition unit 312.

The image generation unit 315 sets the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display 100, and renders the object arranged in the virtual three-dimensional space to display the image displayed on the head-mounted display 100. To generate. The image generation unit 315 moves the viewpoint position in accordance with the movement of the position of the head mounted display 100, that is, the position of the user's head, and adjusts it to the direction of the head mounted display 100, that is, the direction in which the user's head is facing. To change the line of sight. As a result, it is possible to generate a game image in which the user is actually in the virtual three-dimensional space.

When the rotation control unit 313 acquires the instruction to rotate the game field arranged in the virtual three-dimensional space, the rotation control unit 313 rotates the game field around an axis perpendicular to the game field. The direction information display unit 314 displays, on the head mounted display 100, direction information for notifying the user of the direction in which the head mounted display 100 should be turned. The features of these configurations will be described with reference to the game screen.

FIG. 7 shows an example of a game screen displayed on the display device 190 of the head mounted display 100. On the game screen, an image of the inside of the room constructed as a virtual three-dimensional space is displayed. A table 520 and a demon king 522 are arranged in the room, and a game field 500 is arranged on the upper surface of the table 520. In this game, demons 512 are placed in the game field 500 and trained, and the demons 512 are battled with a hero 514 who invades from the castle 504 to prevent the heroes 514 from invading. It is a game to protect. The room displayed on the game screen is the room of the demon king 522 on the top floor of the tower 502, and the user arranges it while receiving the advice of the demon king 522 while accurately grasping the situation of the game field 500. Strategies such as types of demons, placement timings, placement positions, etc. are set, and the demons are placed in the game field 500. When the demon placed in the game field 500 cannot prevent the invasion of the hero 514 and the hero 514 invades the tower 502, it is displayed that the hero 514 invades the room and takes away the demon 522. The game is over. If the invasion of the hero 514 for a predetermined time or a predetermined number of times can be prevented, the game is completed.

The game control unit 311 has a function of a movement control unit that controls the movement of a hero 514, which is an example of a first object that can move in the game field 500, and causes the hero 514 to leave the castle 504 at a predetermined timing. , Along the road 516 towards the tower 502. The game control unit 311 controls the actions of the hero 514 and the demons 510 and 512 placed in the game field 500 by the user. When the hero 514 and the demon 510 or 512 encounter each other, a battle is performed between them. Erase the loser from the game field 500. In the game field 500, a tree 506 and a flower 508 which are an example of a second object whose movement is not controlled by the game control unit 311 which functions as a movement control unit are also arranged.

A predator relationship is set for the demons that can be arranged in the game field 500. For example, the demon 510 preys on the flower 508 to grow, and the demon 512 preys on the demon 510 to grow. The user arranges the monsters in the game field 500 and raises them while considering the predation relationship of the monsters.

In the game screen displayed at the start of the game, the orientation of the game field 500 is set so that the tower 502, which is the player's own camp, is on the near side close to the viewpoint position, and the castle 504, the enemy camp, is far behind the viewpoint position. There is. When the user wants to check the situation around the castle 504, the viewpoint position is moved according to the position of the head mounted display 100, so lean out and move your head forward, or stand up and move forward with your body. It is necessary to move to approach the game field on the far side of the table 520, but since the surrounding situation in the real world cannot be visually recognized while the head mounted display 100 is attached, the user makes a large movement in the real world. Is difficult. Therefore, the present embodiment provides the user with the function of rotating the game field 500. This allows the user to rotate the game field 500 so that the position to be viewed comes to the front side, so that the user can easily view the entire game field 500 even if the user does not significantly move in the real world. You can

FIG. 8 shows an example of a game screen displayed on the display device 190 of the head mounted display 100. A function of rotating the game field 500 is assigned to the upper buttons 83a and 83b of the input device 6, and when the user presses the upper button 83a or 83b, the rotation control unit 313 causes the virtual tertiary to pass through the center of the game field 500. The game field 500 is rotated 90° around a vertical axis parallel to the vertical direction in the original space. The game screen shown in FIG. 8 is a game screen when the game field 500 is rotated 90° clockwise from the game screen of FIG. 7.

After rotating the game field 500, the rotation control unit 313 causes the second objects such as the tree 506 and the flower 508 whose movement is not controlled by the game control unit 311 to jump among the objects arranged in the game field 500. Accordingly, it is possible to easily show the user that the game field 500 has been rotated, and it is possible to give a visual effect that an object on the table 520 jumps due to the impact of the rotation of the table 520. After rotating the game field 500, the rotation control unit 313 does not cause the demons 510 and 512 whose movement is controlled by the game control unit 311 and the first objects such as the hero 514 to jump. By rotating the game field 500, the display positions of the demons 510 and 512 and the hero 514 are changed, but the positions of these first objects are very important in terms of the character of the game. By not jumping, the user can easily understand the position of the first object. In another example, after the game field 500 is rotated, the first object may be displayed in a blinking manner, or may be changed in color or size to be highlighted. In yet another example, the first object may be jumped and the second object may not be jumped after the game field 500 is rotated. Also by these, the user can easily understand the position of the first object after the game field 500 is rotated. The tower 502 and the castle 504 may or may not be made to jump after the game field 500 is rotated. Whether to jump the object may be determined according to the size and weight of the object, the degree of fixation to the game field 500, or may be set in advance for each object.

FIG. 9 shows an example of a game screen displayed on the display device 190 of the head mounted display 100. The game screen shown in FIG. 9 is a game screen when the user moves his/her head downward from the game screen shown in FIG. 7. The image generation unit 315 moves the viewpoint position downward as the head mounted display 100 moves downward. Therefore, the elevation angle between the viewpoint position and the plane of the game field 500 on the game screen shown in FIG. 9 is smaller than that on the game screen shown in FIG. At this time, the distance between the object on the near side of the game field 500 and the viewpoint position becomes short. Therefore, when the game field 500 is rotated, the moving speed of the object on the screen becomes fast, which may cause sickness. is there. Therefore, in the present embodiment, rotation control unit 313 determines the speed at which game field 500 is rotated based on the elevation angle of the viewpoint position with respect to game field 500. More specifically, the rotation control unit 313 slows down the speed of rotating the game field 500 as the elevation angle of the viewpoint position with respect to the game field 500 decreases. This can reduce the occurrence of motion sickness when rotating the game field 500.

FIG. 10 shows an example of a game screen displayed on the display device 190 of the head mounted display 100. The game screen shown in FIG. 10 is a game screen when the user turns his/her head to the right from the game screen shown in FIG. 7. Here, it is assumed that an event occurs in the tower 502 in the game controlled by the game control unit 311. In the game screen shown in FIG. 10, since the user turns his/her head to the right, the tower 502 where the event occurs is located outside the screen and is not displayed on the game screen. At this time, the image generation unit 315 may automatically change the line-of-sight direction to the left so that the tower 502 enters the game screen, but the line-of-sight direction is changed even if the user has not changed the direction of the head. If you change, you may get sick. Therefore, in the present embodiment, in order for the user to voluntarily turn his head to the left and look toward tower 502, direction information display unit 314 indicates to the user the direction in which head mounted display 100 should be turned. An arrow 540, which is an example of direction information for notification, is displayed on the display device 190 of the head mounted display 100. As a result, the user can be made aware that he or she should look to the left, and the user's line-of-sight direction can be changed so that the position or object to be watched is displayed on the game screen.

FIG. 11 shows an example of a game screen displayed on the display device 190 of the head mounted display 100. The game screen shown in FIG. 11 is a game screen when the user turns his/her head to the left from the game screen shown in FIG. When the user notices that his/her head should be turned to the left and turns his/her head to the left, the tower 502 where the event is occurring is displayed on the game screen. At this time, an effect line 542 is displayed around the tower 502 and the tower 502 is highlighted in order to notify the user that the object to be currently watched is the tower 502. In this way, when the target to be watched is not displayed on the game screen, the direction information for notifying the user to turn his/her head in that direction is displayed on the game screen so that it is displayed on the game screen. However, when the target you want to gaze is displayed on the game screen, you can highlight the target by highlighting it on the game screen. You may erase it.

When the user changes the direction of the head, the direction of the head mounted display 100 is changed, and the direction of the line of sight for generating the game screen is changed accordingly, so that the field of view of the game screen is changed. Even when the field 500 is rotated, a gaze target that is outside the range of the game screen may be displayed on the game screen. Also in this case, the direction information display unit 314 displays the direction information on the game screen when the gaze target is not displayed on the game screen, and deletes the direction information from the game screen when the gaze target is displayed on the game screen. You may. Further, the orientation of the head mounted display 100 is changed, the game field 500 is rotated, and the relative position between the gazing target outside the range of the game screen and the arrow 540 displayed on the game screen is changed. At this time, the direction information display unit 314 may change the direction of the arrow 540 displayed on the game screen to the direction of the gaze target.

FIG. 12 shows an example of a game screen displayed on the display device 190 of the head mounted display 100. The game screen shown in FIG. 12 is a game screen when the user turns to the right from the game screen shown in FIG. 7. A description of the game is written on the wall of the room that is not displayed on the game screen when the user is looking forward to see the game field 500. Generally, when a user views such a so-called help screen, he or she pushes a button to which a function for displaying the help screen is assigned to display the help screen on the game screen in a superimposed manner or from the game screen. Although the screen is switched and displayed, in this embodiment, since the help screen is arranged in the virtual three-dimensional space, the help screen can be displayed without impairing the world view of the game in which the user is in the devil's room. Information can be displayed and the immersive feeling can be further enhanced.

FIG. 13 is a flowchart showing the procedure of the game control method according to the embodiment. When an instruction to rotate the game field is acquired from the user while the game screen including the game field in which the virtual three-dimensional space is rendered is displayed on the head mounted display 100 (S100), the rotation control unit 313 causes the viewpoint position. The rotation speed is determined based on the elevation angle between the game field and the game field (S102), and the game field is rotated at the determined rotation speed (S104). After rotating the game field, the rotation control unit 313 causes an object whose movement is not controlled among the objects arranged on the game field to jump (S106).

The present invention has been described above based on the embodiment. This embodiment is merely an example, and it will be understood by those skilled in the art that various modifications can be made to the combinations of the respective constituent elements and the respective processing processes, and such modifications are also within the scope of the present invention. is there.

In the embodiment, the example in which the game field of the tower defense type game is rotated has been described, but the rotation target may be the game field of the role playing game or the board of the board game. The game screen of any game may be used. In addition to the game, the technique described in the embodiment can be used when displaying an image obtained by rendering the virtual three-dimensional space on the head mounted display.

In the embodiment, the example in which the game field is rotated around the axis perpendicular to the game field has been described, but the axis perpendicular to the game field may be an axis parallel to the vertical direction in the game field, It may be an axis perpendicular to a plane included in the game field or a plane forming the game field, or may be an axis perpendicular to a tangent plane of the curved surface when the game field is formed by a curved surface. .. The axis perpendicular to the game field may be an axis passing through the center or the center of gravity of the game field, or may be an axis passing through an arbitrary position in the game field. In another example, the rotation target may be rotated around a horizontal axis parallel to the left-right direction in the virtual three-dimensional space. In short, the game field may be rotated so that the position far from the viewpoint position comes close to the viewpoint position. Further, the game field may be moved or deformed by a method other than rotation so that the position far from the viewpoint position comes to the position close to the viewpoint position.

1 game system, 6 input device, 10 game device, 100 head mounted display, 311 game control unit, 312 instruction input acquisition unit, 313 rotation control unit, 314 direction information display unit, 315 image generation unit.

Claims (15)

Computer,
Image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. An image generation unit that generates
When an instruction to rotate the game field arranged in the room constructed as the virtual three-dimensional space is acquired, the rotation control for rotating the game field around an axis perpendicular to the game field without rotating the room. Department,
To function as,
A program for displaying information about a game progressing in the game field on a wall of the room . Computer,
Image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. An image generation unit that generates
When the instruction to rotate the game field arranged in the room constructed as the virtual three-dimensional space is acquired, the rotation control for rotating the game field around an axis perpendicular to the game field without rotating the room. Department,
A game control unit that controls a battle between a teammate character and an enemy character arranged in the game field, and that controls a game provided in the game field to protect the player's team from invasion of the enemy character ,
And then allowed to function in,
The image generation unit, when the enemy character has invaded the player's side, features and to Help program to display a state in which the enemy character is entering the room. The program according to claim 2 , wherein the own side is provided on one side of the game field, and the enemy side of the enemy character is provided on the other side of the game field. Computer,
Image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. An image generation unit that generates
When the instruction to rotate the game field arranged in the room constructed as the virtual three-dimensional space is acquired, the rotation control for rotating the game field around an axis perpendicular to the game field without rotating the room. Department,
Function as
The rotation control unit, said after rotating the game field, features and to Help program that is jumping the object arranged in the game field. Causing the computer to further function as a movement control unit that controls movement of a first object that is movable in the game field among objects arranged in the game field,
The rotation control unit is not controlled to move by the movement control unit of the objects arranged in the game field when changing the display mode of the objects arranged in the game field after rotating the game field. The program according to claim 4 , wherein the display mode of the second object is different from the display mode of the first object. The game field is arranged on the upper surface of a table arranged in the room,
The rotation control unit, a program according to any one of claims 1 to 5, characterized in that rotating the game field by rotating the table. The computer, the direction information for notifying the direction to turn the head mounted display to the user in any of claims 1 to 6, characterized in that to further function as a direction information display unit to be displayed on the head-mounted display The listed program. The direction information display unit directs the head mounted display to display the object to be displayed when the object to be displayed is not displayed in the image generated by the image generation unit. The program according to claim 7 , which displays direction information for notifying a power direction. Image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. An image generation unit that generates
When the instruction to rotate the game field arranged in the room constructed as the virtual three-dimensional space is acquired, the rotation control for rotating the game field around an axis perpendicular to the game field without rotating the room. Department,
Equipped with
A display control device , wherein information about a game progressing in the game field is displayed on a wall of the room . Image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. An image generation unit that generates
When the instruction to rotate the game field arranged in the room constructed as the virtual three-dimensional space is acquired, the rotation control for rotating the game field around an axis perpendicular to the game field without rotating the room. Department,
A game control unit that controls a battle between a teammate character and an enemy character arranged in the game field, and that controls a game provided in the game field to protect the player's team from invasion of the enemy character,
Equipped with
The image generation unit displays a state where the enemy character invades the room when the enemy character invades the own team.
A display control device characterized by the above. Image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. An image generation unit that generates
When the instruction to rotate the game field arranged in the room constructed as the virtual three-dimensional space is acquired, the rotation control for rotating the game field around an axis perpendicular to the game field without rotating the room. Department,
Equipped with
The rotation control unit rotates the game field and then causes an object placed in the game field to jump.
A display control device characterized by the above. An image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. To generate
Acquiring an instruction to rotate a game field arranged in a room constructed as the virtual three-dimensional space, rotating the game field around an axis perpendicular to the game field without rotating the room; ,
To run on your computer ,
A display control method , wherein information about a game progressing in the game field is displayed on a wall of the room . Image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. To generate
Acquiring an instruction to rotate a game field arranged in a room constructed as the virtual three-dimensional space, and rotating the game field around an axis perpendicular to the game field without rotating the room. ,
Controlling a battle between a teammate character and an enemy character arranged in the game field, and controlling a game in which the player's own team provided in the game field is protected from the invasion of the enemy character,
A step of displaying a state where the enemy character invades the room when the enemy character invades the own team;
A display control method characterized by causing a computer to execute. Image displayed on the head-mounted display by setting the viewpoint position and the line-of-sight direction according to the position or orientation of the head-mounted display mounted on the user's head and rendering the object arranged in the virtual three-dimensional space. To generate
Acquiring an instruction to rotate a game field arranged in a room constructed as the virtual three-dimensional space, and rotating the game field around an axis perpendicular to the game field without rotating the room. ,
After rotating the game field, jumping an object placed in the game field,
A display control method characterized by causing a computer to execute. A computer-readable recording medium in which the program according to any one of claims 1 to 8 is recorded.

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