JP2019021057A - Game program and game system - Google Patents

Abstract

To provide a game program and a game system which realize setting of parameters for color adjustment suitable for a VR corresponding game.SOLUTION: A game program makes a computer function as: virtual space generating means for generating a virtual space; character controlling means for controlling a character moving in the virtual space; camera locating means for locating a virtual left camera and a virtual right camera at predetermined positions of the character with being separated from each other and for locating a virtual intermediate camera between the left camera and the right camera; parameter acquiring means for acquiring parameters for use in adjustment of color elements of an image shot by the intermediate camera on the basis of position information of the intermediate camera; and color adjustment means for adjusting color elements of each image shot by the left camera and the right camera on the basis of the parameters acquired by the parameter acquiring means in order to generate images for VR displayed on a left eye display unit and a right eye display unit and having parallax each other.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a game program and a game system for realizing a game that displays an image viewed from a virtual camera arranged in a virtual space.

  Conventionally, a game system that generates a three-dimensional virtual space and displays an image that can be viewed from a virtual camera arranged therein as a game screen has been widely used. As such a game system, there is known a game system that displays a game screen after adjusting brightness and color tone of an image viewed from a virtual camera. For example, in the real world, when a human enters a dark indoor from a bright outdoor, the human eye adjusts the amount of incoming light, and color adjustments corresponding to such adjustments are set for the virtual camera. This is done by changing predetermined parameters. Thereby, it is possible to give an immersive feeling that the user who plays the game has entered the virtual space.

  Such parameters for color adjustment are changed according to the position information of the virtual camera, for example, information on which area in the virtual space the virtual camera is located, information on the relative position of the virtual camera with respect to a predetermined object, etc. There is a case. For example, Patent Document 1 discloses setting color adjustment information (α value) based on a distance parameter (Z value) from a virtual camera in order to increase the fog density as the distance from the virtual camera increases.

JP 2007-140842 A

  By the way, in recent years, a game (hereinafter referred to as VR-compatible game) in which a user wearing a head mounted display (hereinafter referred to as HMD) having a display unit for left eye and right eye can experience virtual reality (hereinafter referred to as VR) has been realized. . In a VR-compatible game, two virtual cameras are arranged in a three-dimensional virtual space. These two virtual cameras are arranged corresponding to the left and right eyes of the character in the virtual space, and images taken by these two virtual cameras are respectively displayed on the left-eye display unit and the right-eye display unit of the HMD. Is displayed.

  When the color adjustment of the image according to the position information of the virtual camera as described above is executed in a VR-compatible game, an image with different color tone, brightness, or the like may be displayed on the left-eye display unit and the right-eye display unit. Arise. This may lead to a sense of incongruity and sickness for the user.

  Accordingly, an object of the present invention is to provide a game program and a game system that can realize setting of parameters for color adjustment suitable for a VR-compatible game.

  In order to solve the above-described problems, a game program according to the present invention is a game program that causes a computer including a VR HMD having a left-eye display unit and a right-eye display unit to be executed, and the computer is used in a virtual space. A virtual space generating means for generating, a character control means for controlling a character moving in the virtual space, a virtual left camera and a right camera being placed apart from each other at a predetermined position of the character, and the left camera and the right camera Camera placement means for placing a virtual intermediate camera between the camera, parameter acquisition means for obtaining parameters for adjusting color elements of an image captured by the intermediate camera based on position information of the intermediate camera, and Generate VR images that are displayed on the left-eye display unit and the right-eye display unit and have parallax with each other. Therefore, the the basis of the parameters obtained by the parameter obtaining unit, a color adjustment means for adjusting the color components of each image taken by the left camera and the right camera, to function as a.

  According to the above game program, the parameters for adjusting the color elements of the images taken by the left camera and the right camera are unified with the acquired parameters according to the position of the intermediate camera. For this reason, since images having the same brightness and color tone are displayed on the left-eye display unit and the right-eye display unit, respectively, it is possible to suppress the user from feeling uncomfortable or sick.

  For example, the parameters include at least one of an exposure parameter for adjusting the degree of exposure of the camera and a color parameter for adjusting the color tone of the image.

  In the above game program, the color adjusting unit may adjust the color element of the image captured by the intermediate camera based on the parameter acquired by the parameter acquiring unit in order to generate a non-VR image. . According to this game program, an image photographed by the intermediate camera can be displayed as a non-VR image by adjusting color elements. For example, when a VR image is displayed on the HMD and a non-VR image is displayed on a display different from the HMD, a VR image viewed by the user through the HMD and a person other than the user wearing the HMD It is possible to make the color tone, brightness, etc. of the non-VR images seen by the same.

  In the above-described game program, the virtual space is defined in a plurality of areas, and the parameter values are set corresponding to the plurality of areas, and the parameter acquisition unit includes the intermediate camera. When moving from one of the plurality of areas to another area, a parameter corresponding to the moved area may be acquired. According to this game program, the parameter is acquired only when there is an area movement, so the processing load required for acquiring the parameter can be reduced.

  In addition, a game system according to the present invention includes a program storage unit that stores the game program and a computer that executes the program stored in the program storage unit.

  ADVANTAGE OF THE INVENTION According to this invention, the game program and game system which can implement | achieve the setting of the parameter for color adjustment suitable for VR corresponding | compatible game can be provided.

It is a block diagram which shows the hardware constitutions of the game system which concerns on one Embodiment. It is a block diagram which shows the functional structure of the game device shown in FIG. It is the top view and side view of the character which showed typically arrangement | positioning of the virtual camera in non-VR mode. It is the top view and side view of the character which showed typically arrangement | positioning of the virtual camera in VR mode. It is a top view of virtual space which showed a mode that a character entered indoors from the outdoors. It is a flowchart which shows the flow of the color adjustment process for VR mode.

  Hereinafter, a game program and a game system according to embodiments of the present invention will be described with reference to the drawings.

[Hardware configuration]
FIG. 1 is a block diagram showing a hardware configuration of the game system 1. The game system 1 includes a game device 2 and a server device 3. The game apparatus 2 can communicate with another game apparatus 2 and the server apparatus 3 via a communication network NW such as the Internet or a LAN. Further, the game apparatus 2 is connected with an HMD 40, a light detection device 46, a display 47, and a speaker 48.

  The game apparatus 2 includes a CPU 10 that controls the operation of the game apparatus 2, and a disk drive 12, a memory card slot 13, an HDD 14 and a ROM 15 that constitute a storage unit, and a RAM 16 are connected to the CPU 10 via a bus 11.

  The disk drive 12 can be loaded with a disk type recording medium 30 such as a DVD-ROM. On the disc-type recording medium 30, a game program 30a and game data 30b according to the present embodiment are recorded. The game program 30a according to the present embodiment is a program that realizes a VR-compatible game in which a user wearing the HMD 40 can experience VR. The game data 30b includes various data necessary for the progress of the game, such as data necessary for forming a virtual space and sound data reproduced during the game. In addition, a card-type recording medium 31 can be loaded in the memory card slot 13, and save data indicating a play status such as a game progress can be recorded in accordance with an instruction from the CPU 10.

  The HDD 14 is a large-capacity recording medium built in the game apparatus 2 and records a game program 30a and game data 30b read from the disk-type recording medium 30, and save data and the like. The ROM 15 is a semiconductor memory such as a mask ROM or PROM, and stores a startup program for starting the game apparatus 2, a program for controlling an operation when the disk type recording medium 30 is loaded, and the like. The RAM 16 is composed of DRAM, SRAM, or the like, and reads a game program 30a to be executed by the CPU 10 or game data 30b necessary for the execution from the disk-type recording medium 30 or the HDD 14 in accordance with the game play status. To record temporarily.

  Further, the CPU 10 further includes an HMD interface 17 for connecting to the HMD 40 via the bus 11, an optical detection device interface 18 for connecting to the optical detection device 46, a graphic processing unit 19, an audio synthesis unit 20, An audio interface 21, a wireless communication control unit 22, and a network interface 23 for connecting to the speaker 48 are connected.

  The HMD 40 can be worn on the user's head. The HMD 40 includes a pair of display units 41 (41a, 41b), an acceleration sensor 42, a gyro sensor 43, a light emitting unit 44, and a control unit 45. By mounting the HMD 40 on the user's head, a display unit 41a for the left eye and a display unit 41b for the right eye are respectively arranged in front of the left eye and the right eye of the user.

  The acceleration sensor 42 and the gyro sensor 43 constitute a motion detection system that detects the motion of the user's head. The acceleration sensor 42 detects, for example, the orientation of the HMD 40 with respect to the direction of gravity, that is, the inclination of the user's head. The gyro sensor 43 detects, for example, the angular velocity of the HMD 40, that is, the speed at which the user tilts or rotates the head. The motion information obtained from the acceleration sensor 42 and the gyro sensor 43 is sent to the graphic processing unit 19 and the audio synthesis unit 20.

  The light emitting unit 44 of the HMD 40, together with the light detection device 46, constitutes a position detection system that detects the position of the user's head. In the present embodiment, the light emitting unit 44 is, for example, a plurality of LED lights provided in the HMD 40 apart from each other. The light detection device 46 is fixedly disposed, for example, in front of the user, and detects the position of light emitted from the light emitting unit 44 of the HMD 40. The light detection device 46 acquires the position information of the user's head relative to the light detection device 46 by detecting the position of the light emitted from the light emitting unit 44. The position information may be used to correct the above-described motion information. The position information obtained from the light detection device 46 is sent to the graphic processing unit 19 and the audio synthesis unit 20 via the light detection device interface 18.

  In addition, the position detection system which detects the position of a user's head is not limited to this. For example, the position of the user's head may be detected by providing an optical sensor on the HMD 40 side and detecting the light emitted from the light emitting device arranged around the user with the optical sensor.

  The control unit 45 controls various devices included in the HMD 40 such as transmission of data from the acceleration sensor 42 and the gyro sensor 43 to the game apparatus 2 and transmission of a signal to the light emitting unit 44.

  The graphic processing unit 19 draws a game image including a three-dimensional virtual game space in accordance with an instruction from the CPU 10. The graphic processing unit 19 generates a game image corresponding to the game mode.

  For example, when the game is played in a mode in which the user advances the game while experiencing VR (hereinafter referred to as VR mode), the graphic processor 19 allows the user wearing the HMD 40 to stereoscopically view the three-dimensional virtual space. Then, a pair of virtual two-dimensional images having parallax are generated. That is, the graphic processing unit 19 generates a virtual two-dimensional image for left eye and right eye having parallax, which are captured by each of a pair of virtual cameras arranged in the virtual three-dimensional space. The pair of virtual two-dimensional images are converted into a moving image format, sent to the HMD 40, and displayed on the left-eye display unit 41a and the right-eye display unit 41b. Further, the graphic processing unit 19 adds the above-mentioned pair of information in real time in accordance with the motion information and the position information about the user sent from the HMD 40 and the light detection device 46 so as to give the user a sense of presence as if it has entered the virtual space. Change the orientation and position of the virtual camera.

  Further, when the game is played in a mode other than the VR mode (hereinafter referred to as non-VR mode), for example, a mode in which the user advances the game while viewing the screen of the non-VR display 47 such as a TV monitor, graphic processing is performed. The unit 19 generates a virtual two-dimensional image captured by one virtual camera arranged in the virtual three-dimensional space. The virtual two-dimensional image is converted into a moving image format, sent to the display 47, and displayed on the display unit. Instead of the display 47, the image may be sent to the HMD 40, and the same virtual two-dimensional image may be displayed on each of the pair of display units 41a and 41b.

The audio synthesizer 20 reproduces and synthesizes digital sound data included in the game data 30b in accordance with instructions from the CPU 10. The sound data reproduced and synthesized by the audio synthesis unit 20 is decoded into an analog format, and then sent to the speaker 48 for output. As a result, the user who is playing this game can listen to the reproduced sound. The speaker 48 may be configured integrally with the HMD 40. Also, the audio synthesis unit 20 is output from the speaker 48 in real time in accordance with the motion information and the position information sent from the HMD 40 and the light detection device 46 so as to give the user a sense of presence as if they entered the virtual space. The sound may be changed. A headphone may be connected to the audio interface 21 instead of or in addition to the speaker 48.
The wireless communication control unit 22 includes a 2.4 GHz band wireless communication module, and is wirelessly connected to the controller 49 attached to the game apparatus 2 so that data can be transmitted and received. The user can input a signal to the game apparatus 2 by operating an operation unit such as a button provided in the controller 49.

  The network interface 23 connects the game apparatus 2 to a communication network NW such as the Internet or a LAN, and can communicate with other game apparatuses 2 and the server apparatus 3. Then, by connecting the game device 2 to another game device 2 via the communication network NW and transmitting / receiving data to / from each other, it is possible to perform multiplayer in which the game progresses synchronously in the same virtual space. .

[Functional configuration of game device]
FIG. 2 is a block diagram illustrating a functional configuration of the game apparatus 2 included in the game system 1. By executing the game program 30a of the present invention, the game apparatus 2 performs virtual space generation means 51, character control means 52, mode setting means 53, camera placement means 54, parameter acquisition means 55, parameter setting means 56, and color It functions as the adjusting means 57. Each of these functions is composed of the CPU 10, HDD 14, ROM 15, RAM 16, graphic processing unit 19, audio composition unit 20, wireless communication control unit 22 and the like shown in FIG.

  The virtual space generation means 51 generates a three-dimensional virtual space having a predetermined extent. In this virtual space, a three-dimensional orthogonal coordinate system XYZ (world coordinate system) is set. Various objects and characters are arranged in the virtual space. For example, in the virtual space, there is a player character that can be directly controlled by the user by operating the controller 49.

  The character control means 52 controls the player character that moves in the virtual space. Specifically, the character control means 52 controls the movement, orientation, posture, etc. of the player character in the virtual space in accordance with the operation of the controller 49. The character control means 52 may control the player character in the virtual space according to the movement of the head of the user wearing the HMD 40 instead of or in addition to the operation of the controller 49.

  The mode setting means 53 sets either a VR mode for sending a pair of images having parallax to the HMD 40 or a non-VR mode, which is a mode other than that, as a mode in which the user plays a game. In this embodiment, on / off of the VR mode can be selected by a user operation on the controller 49 on a predetermined game screen displayed on at least one of the HMD 40 and the display 47 at the start of the game. However, the mode setting by the mode setting means 53 may not be based on the user's selection. For example, when the HMD 40 is not activated or when the HMD 40 is not connected to the game apparatus 2, the mode setting unit 53 may automatically set the mode in which the user plays the game to the non-VR mode.

  The camera placement unit 54 places a virtual camera at a predetermined position in the virtual space. The camera placement unit 54 changes the placement method of the virtual camera depending on whether the mode set by the mode setting unit 53 is the VR mode or the non-VR mode.

(Camera placement in non-VR mode)
FIG. 3 schematically shows the placement of the virtual camera CN with respect to the player character P when the mode set by the mode setting means 53 is the non-VR mode. FIG. FIG. 3B is a side view of the player character P. 3A and 3B, the player character P is indicated by a broken line, and the virtual camera CN is indicated by a solid line. In FIG. 3, the vertical direction (vertical direction) of the virtual space S is set as the Y axis, and the player character P faces the Z axis direction.

  As shown in FIG. 3, in the non-VR mode, the camera placement unit 54 has one virtual camera (hereinafter, referred to as a “virtual camera”) at a predetermined position of the player character P so as to photograph the virtual space S spreading in front of the player character P. Called “non-VR camera.”) Place CN. The non-VR camera CN moves or changes the direction of the virtual space S so as to follow the head of the player character P. For example, a predetermined point (for example, a point corresponding to the center of the lens of the non-VR camera CN) Pcn of the non-VR camera CN changes according to the movement of the head of the player character P in the virtual space S.

  The non-VR camera CN captures a virtual space S that extends in front of the player character P. The image captured by the non-VR camera CN is displayed on the display unit of the display 47, for example, after the color elements are adjusted by the color adjustment processing for the non-VR mode.

  In the present embodiment, the non-VR camera CN has its predetermined point Pcn located at the center in the left-right direction and the center in the front-rear direction of the player character P as shown in FIG. As shown, the player character P is arranged so as to be positioned at the eye level. However, the arrangement of the non-VR camera CN with respect to the player character P is not limited to this. For example, the point Pcn of the non-VR camera CN may be positioned on the front side of the player character P. Further, the non-VR camera CN is not necessarily fixed with respect to the player character P. For example, the non-VR camera CN may be slightly displaced in the vertical direction with respect to the player character P. It may be displaced slightly in the front-rear direction.

(VR mode camera layout)
FIG. 4 schematically shows the arrangement of the three virtual cameras CL, CR, and CM with respect to the player character P when the mode set by the mode setting means 53 is the VR mode. FIG. FIG. 4B is a plan view of the player character P, and FIG. 4B is a side view of the player character P. 4A and 4B, the player character P is indicated by a broken line, and the virtual cameras CL, CR, and CM are indicated by a solid line. In FIG. 4, the vertical direction (vertical direction) of the virtual space S is set as the Y axis, and the player character P faces the Z axis direction.

  As shown in FIG. 4, in the VR mode, the camera placement unit 54 places the virtual left camera CL and the right camera CR apart from each other at a predetermined position of the player character P, and the left camera CL and the right camera CR. A virtual intermediate camera CM is placed between them. The left camera CL, the right camera CR, and the intermediate camera CM are all arranged on the head of the player character P so as to photograph the front of the player character P.

  The left camera CL, the right camera CR, and the intermediate camera CM move the virtual space S so as to follow the head of the player character P or change the direction thereof. For example, a predetermined point of the left camera CL (for example, the center point of the lens of the left camera CL) Pcl, a predetermined point of the right camera CR (for example, the center point of the lens of the right camera CR) Pcr, and a predetermined point of the intermediate camera CM The point (for example, the center point of the lens of the intermediate camera CM) Pcm changes according to the movement of the head of the player character P in the virtual space S.

  The left camera CL and the right camera CR are for capturing a virtual space S extending in front of the player character P and generating a pair of virtual two-dimensional images having parallax. The images captured by the left camera CL and the right camera CR are displayed on the left eye display unit 41a and the right eye display unit 41b of the HMD 40 after color elements are adjusted by a color adjustment process described later.

  As shown in FIGS. 4A and 4B, the left camera CL and the right camera CR are arranged at the positions of the left eye and the right eye of the player character P, respectively. The relative positional relationship between the left camera CL and the right camera CR, that is, the interval and the relative direction between the left camera CL and the right camera CR are kept constant during the game. In other words, the left camera CL and the right camera CR move integrally in the virtual space S in a state where the relative position and orientation are fixed. For example, the relative positional relationship between the left camera CL and the right camera CR may be set so as to be optimized according to the user wearing the HMD 40.

  The intermediate camera CM is used for causing the display 47 to display a screen similar to the game screen viewed by the user through the HMD 40. That is, a person other than the user wearing the HMD 40 can enjoy the game while viewing the display 47.

  The arrangement of the intermediate camera CM with respect to the player character P is the same as the arrangement of the non-VR camera CN with respect to the player character P described above. In other words, the non-VR camera CN arranged in the virtual space S in the non-VR mode is arranged in the virtual space S as the intermediate camera CM even in the VR mode.

(Color adjustment processing)
The parameter acquisition unit 55, the parameter setting unit 56, and the color adjustment unit 57 shown in FIG. 2 execute color adjustment processing for adjusting the color elements of the images captured by the left camera CL and the right camera CR.

  In the present embodiment, the parameter setting unit 56 sets parameters for adjusting the color elements of the captured image for each of the left camera CL, the right camera CR, and the intermediate camera CM. Then, the color adjustment unit 57 adjusts the color elements of the image captured by the camera based on the parameters set for each camera.

Here, the “parameters for adjusting color elements” (hereinafter referred to as “adjustment parameters”) include at least one of the following parameters (a) to (k). Note that the parameters (a) to (k) listed below may overlap each other.
(A) Exposure parameter (exposure value) for adjusting the degree of camera exposure (total amount of light entering the camera)
(B) Parameters (contrast value) for adjusting the difference in brightness of the image
(C) Color tone parameter (color correct value) for adjusting the color tone of the image
(D) Parameters for adjusting the brightness of the image (e) Parameters for adjusting the saturation of the image (f) Parameters for adjusting the hue of the image (g) Parameters for making the gradation of the image natural (H) Parameters for adjusting color balance such as a specific color being strongly expressed (i) Parameters used for effect processing for an image such as filter processing (j) Parameters used for tone mapping for an image (k) Adjustment of fog density Parameters for Adjustment A method for setting adjustment parameters for the cameras CL, CR, and CM will be described with reference to FIG. In the following description, the adjustment parameter set for the left camera CL is called “left camera parameter”, and the adjustment parameter set for the right camera CR is called “right camera parameter”. The adjustment parameters set for the camera CM are referred to as “intermediate camera parameters”.

  5A and 5B show a state in which the player character P enters the building object A from the outside in order of time series. In the present embodiment, the virtual space S is demarcated into a plurality of areas, and the value of the adjustment parameter is set corresponding to each of the plurality of areas. In the defined areas adjacent to each other, adjustment parameters having different values are set. In the example shown in FIGS. 5A and 5B, adjustment parameters having different values are set in the area R1 outside the building object A and the area R2 inside. In FIG. 5A, as an example of the adjustment parameters set in the areas R1 and R2, the exposure value “15” is set in the area R1, and the exposure value “5” is set in the area R2. It has been shown that

  In the present embodiment, the parameter acquisition unit 55 described above acquires the adjustment parameters set in the area where the intermediate camera CM is located. In FIG. 5A, since the position coordinate of the predetermined point Pcm of the intermediate camera CM is in the area R1, the parameter acquisition means 55 acquires the exposure value “15” set in the area R1.

  Next, the parameter setting unit 56 sets the adjustment parameter acquired by the parameter acquisition unit 55 as an intermediate camera parameter. Further, the parameter setting means 56 duplicates the intermediate camera parameter into the left camera parameter and the right camera parameter. In FIG. 5A, the intermediate camera parameter, the left camera parameter, and the right camera parameter are all set to the same value as the adjustment parameter set in the area R1 (ie, the exposure value “15”).

  That is, as shown in FIG. 5A, even when the left camera CL is in the area A2, as long as the intermediate camera CM is in the area A1, the left camera parameter is not the adjustment parameter for the area A2, The adjustment parameters for area A1 are set.

  Then, as shown in FIG. 5B, when the intermediate camera CM moves from the area R1 to another area R2, the parameter acquisition means 55 acquires the adjustment parameters corresponding to the area R2 after the movement. . Thereafter, the parameter setting unit 56 sets the adjustment parameter acquired by the parameter acquisition unit 55 as an intermediate camera parameter, and copies the intermediate camera parameter to the left camera parameter and the right camera parameter. Once set, the intermediate camera parameter, the left camera parameter, and the right camera parameter are maintained unless the area of the intermediate camera CM is moved.

  Next, the flow of color adjustment processing for the VR mode will be described with reference to the flowchart shown in FIG. The color adjustment process is executed every frame or every several frames while a pair of images having parallax are displayed on the HMD 40.

  When the color adjustment process is started, the parameter acquisition unit 55 determines whether or not the area where the intermediate camera CM is located has changed (step S1).

  When it is determined that the area where the intermediate camera CM is located has changed (step S1: Yes), the parameter acquisition unit 55 acquires the adjustment parameter set in the area where the intermediate camera CM is located, and the parameter setting unit 56 The acquired adjustment parameters are set as intermediate camera parameters (step S2). Note that if the intermediate camera parameter is not set in step S1, such as at the start of the game, the process proceeds to step S2.

  After setting the intermediate camera parameters in step S2, the parameter setting means 56 duplicates the intermediate camera parameters into the left camera parameter and the right camera parameter (step S3).

  Thereafter, in order to generate an image to be displayed on the left-eye display unit 41a, the color adjusting unit 57 adjusts the color elements of the image captured by the left camera CL based on the left camera parameter (step S4). Then, in order to generate an image to be displayed on the right-eye display unit 41b, the color adjustment unit 57 adjusts the color element of the image captured by the right camera CR based on the right camera parameter (step S5), and the color adjustment The process ends.

  After step S5, in order to generate an image to be displayed on the display unit of the display 47, the color adjustment unit 57 may adjust the color elements of the image captured by the intermediate camera CM based on the intermediate camera parameters.

  If it is not determined in step S1 that the area where the intermediate camera CM is located has changed (step S1: No), the already set intermediate camera parameter, left camera parameter, and right camera parameter are maintained, and the process proceeds to step S4.

  Note that the color adjustment processing for the non-VR mode is the same as the color adjustment processing performed on the image captured by the intermediate camera CM described above. Specifically, the parameter acquisition unit 55 acquires the adjustment parameter set in the area where the non-VR camera CN is located, and based on the acquired adjustment parameter, the color adjustment unit 57 performs the non-VR camera. Adjust the color elements of images shot with CN.

  As described above, in the game system 1 according to the present embodiment, parameters for adjusting the color of each image captured by the left camera CL and the right camera CR are parameters acquired according to the position of the intermediate camera CM. To unify. For this reason, images having the same brightness and color tone are displayed on the left-eye display unit 41a and the right-eye display unit 41b, respectively, so that the user can be prevented from feeling uncomfortable or sick.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

  For example, the configuration of the hardware described in the above embodiment is merely an example, and any configuration including an HMD 40 that displays a pair of virtual two-dimensional images having parallax with each other may be used. If the configuration can be realized, any of the acceleration sensor 42, the gyro sensor 43, the light emitting unit 44, and the light detection device 46 included in the HMD 40 may be omitted. Further, the display 47 may not be connected to the game apparatus 2.

  Further, the arrangement method of the left camera CL and the right camera CR is not limited to that described in the above embodiment. For example, in the above embodiment, the left camera CL and the right camera CR are arranged at the positions of the left eye and the right eye of the player character P, respectively, but the left camera CL and the right camera CR are positioned at the center in the front-rear direction of the player character P. May be. Further, the left camera CL and the right camera CR are not necessarily fixed with respect to the player character P. For example, the left camera CL and the right camera CR may be slightly displaced in the vertical direction with respect to the player character P. On the other hand, it may be slightly displaced in the front-rear direction.

  Further, the arrangement method of the intermediate camera CM is not limited to the one described in the above embodiment. For example, in the above embodiment, the intermediate camera CM and the non-VR camera CN are arranged at the same position with respect to the player character P, but may be arranged at different positions with respect to the player character P. The relative position of the intermediate camera CM with respect to the left camera CL and the right camera CR may not be constant. Further, the followability of the player character P to the head may be different between the left camera CL, the right camera CR, and the intermediate camera CM. For example, the acceleration when the player character P rotates the head may be different between the left camera CL, the right camera CR, and the intermediate camera CM.

  In the above embodiment, in the non-VR mode, the camera placement unit 54 places one non-VR camera CN at a predetermined position of the player character P. However, in the non-VR mode, the player character is the same as in the VR mode. Three cameras CL, CR, and CM may be arranged for P. In this case, for example, an intermediate camera CM may be used as the non-VR camera CN.

  In the above embodiment, the parameter setting unit 56 sets the adjustment parameters for each of the left camera CL, the right camera CR, and the intermediate camera CM. In this way, the adjustment parameters are managed for each camera. It does not have to be. That is, the adjustment parameter acquired by the parameter acquisition unit 55 may be managed as a common adjustment parameter for the left camera CL, the right camera CR, and the intermediate camera CM.

  In FIGS. 5A and 5B, adjustment parameters having different values are set for outdoor and indoor, but the area delimiting method is not particularly limited. For example, adjustment parameters with different values may be set for a room in a building and another room adjacent to the room, or different values may be set for an area within a certain range and an area outside the range from a certain object. The adjustment parameters may be set. Further, the value of the adjustment parameter set in each area may not be fixed, but may change when a predetermined condition is satisfied, or may change over time.

40: HMD
41a: Left eye display
41b: Right eye display
47: Display
51: Virtual space generation means
52: Character control means
53: Mode setting means
54: Camera placement means
55: Parameter acquisition means
56: Parameter setting method
57: Color adjustment means
CL: Left camera
CR: Right camera
CM: Intermediate camera
CN: Non-VR camera
P: Player character
S: Virtual space

Claims (5)

A game program to be executed by a computer having a virtual reality (VR) head-mounted display having a left-eye display unit and a right-eye display unit,
The computer,
Virtual space generation means for generating a virtual space;
Character control means for controlling a character moving in the virtual space;
Camera placement means for placing a virtual left camera and a right camera apart at a predetermined position of the character, and placing a virtual intermediate camera between the left camera and the right camera;
Based on the position information of the intermediate camera, parameter acquisition means for acquiring parameters for adjusting color elements of an image captured by the intermediate camera, and
Photographed by the left camera and the right camera on the basis of the parameters acquired by the parameter acquisition means to generate VR images having parallax displayed on the left eye display unit and the right eye display unit, respectively. A game program that functions as a color adjustment unit that adjusts color elements of each image.   The game program according to claim 1, wherein the parameters include at least one of an exposure parameter for adjusting a degree of exposure of a camera and a color parameter for adjusting a color tone of an image.   The said color adjustment means adjusts the color component of the image image | photographed with the said intermediate camera based on the parameter acquired by the said parameter acquisition means, in order to produce | generate the image for non-VR. Game program. The virtual space is defined in a plurality of areas, and the value of the parameter is set corresponding to each of the plurality of areas,
The parameter acquisition unit acquires a parameter corresponding to the area after the movement when the intermediate camera moves from one of the plurality of areas to another area. The game program according to the item. A program storage unit storing the game program according to any one of claims 1 to 4,
A game system comprising: a computer that executes a program stored in the program storage unit.

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