JP2013051460A - Display control program, display control device, display control system, and display control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display control program, display control device, display control system and display control method with which a completely new presentation can be displayed to a user by changing and controlling a stereoscopic level in stereoscopic vision display.SOLUTION: A game device connected to a stereoscopic image display device capable of performing stereoscopic vision display has display processing means and change means. The display processing means allows a stereoscopic image display device 2 to perform stereoscopic vision display of a display object, on the basis of a stereoscopic vision parameter (e.g. a distance parameter between cameras which indicates a distance L1 and/or a reference level distance parameter which indicates a distance L3) for setting the stereoscopic level in the stereoscopic vision display, using an image for right eye and an image for left eye having disparity respectively. And, the change means repeatedly changes the stereoscopic vision parameter.

Description

  The present invention relates to a display control program, a display control device, a display control system, and a display control method for displaying a display target in a stereoscopic manner on a display device, and more specifically, a change control of a stereoscopic degree in a stereoscopic display. The present invention relates to a display control program, a display control device, a display control system, and a display control method.

  Display in which a display object that is included in both the right-eye image and the left-eye image is stereoscopically displayed on the display device by displaying the right-eye image and the left-eye image having parallax with each other on a display device capable of stereoscopic display Control devices are generally known. Patent Document 1 discloses an imaging apparatus that changes a stereoscopic degree in stereoscopic display by adjusting a parallax amount between a right-eye image and a left-eye image based on an operation of a photographer.

JP 2003-264851 A

  However, the display control device described in Patent Literature 1 is merely a device that adjusts the parallax between the right-eye image and the left-eye image based on an operation of adjusting the parallax amount of the photographer.

  An object of the present invention is to provide a display control program, a display control device, a display control system, and a display control method capable of displaying a completely new effect to a user by changing the degree of stereoscopic display in stereoscopic display.

  (1) A display control program according to the present invention causes a computer of a display control device connected to a display device capable of stereoscopic display to function as a display processing unit and a changing unit. The display processing means repeatedly executes a process of stereoscopically displaying on the display device using a right-eye image and a left-eye image having parallax based on a stereoscopic parameter for setting a stereoscopic degree in stereoscopic display. To do. The changing means repeatedly changes the stereoscopic parameter.

  According to the above configuration, since the stereoscopic parameter is repeatedly changed, the stereoscopic degree is repeatedly changed in the stereoscopic display based on the stereoscopic parameter.

  (2) In the display control program described above, a virtual three-dimensional space may be drawn on the right-eye image and the left-eye image. The stereoscopic parameter may include at least a first distance between the right-eye virtual camera and the left-eye virtual camera arranged in the three-dimensional space. Further, the display processing means may include a camera position changing means and an image generating means. The camera position changing means changes the distance between the right-eye virtual camera and the left-eye virtual camera based on the stereoscopic parameter changed by the changing means. The image generation means repeatedly generates a right-eye image obtained by imaging the three-dimensional space from the right-eye virtual camera and a left-eye image obtained by imaging the three-dimensional space from the left-eye virtual camera.

  According to the above configuration, it is possible to repeatedly change the parallax between the right-eye image and the left-eye image by repeatedly changing the distance between the right-eye virtual camera and the left-eye virtual camera. The degree can be changed by simple processing.

  (3) In the display control program described above, a virtual three-dimensional space may be drawn in the right-eye image and the left-eye image. Further, the stereoscopic parameter is calculated based on a distance from the right-eye virtual camera and / or the left-eye virtual camera arranged in the three-dimensional space to the reference plane, or a predetermined position between the right-eye virtual camera and the left-eye virtual camera. It may include at least a second distance that is a distance to the reference surface. Furthermore, the display processing means may include a reference plane changing means and an image generating means. The reference plane changing unit changes the position of the reference plane based on the stereoscopic parameter changed by the changing unit. The image generation means repeatedly generates a right-eye image obtained by imaging a three-dimensional space from the right-eye virtual camera and a left-eye image obtained by imaging the three-dimensional space from the left-eye virtual camera based on the reference plane.

  According to the above configuration, it is possible to repeatedly change the parallax in the right-eye image and the left-eye image by repeatedly changing the position of the reference plane, and to change the stereoscopic degree in the stereoscopic display by a simple process. Can do.

  (4) In the display control program of (2) described above, there are a plurality of the stereoscopic parameters, and the plurality of stereoscopic parameters are obtained from the right-eye virtual camera and / or the left-eye virtual camera in addition to the first distance. It may include at least a second distance that is a distance to the reference plane or a distance from a predetermined position between the right-eye virtual camera and the left-eye virtual camera to the reference plane. In addition to the camera position changing unit and the image generating unit, the display processing unit may further include a reference plane changing unit that changes the position of the reference plane based on the stereoscopic parameter changed by the changing unit. . The image generation means repeatedly generates a right-eye image obtained by imaging a three-dimensional space from a right-eye virtual camera and a left-eye image obtained by imaging a three-dimensional space from a left-eye virtual camera based on a reference plane. Also good.

  According to the above configuration, it is possible to repeatedly change the parallax in the right-eye image and the left-eye image by repeatedly changing the position of the reference plane, and to change the stereoscopic degree in the stereoscopic display by a simple process. Can do. Furthermore, by changing two types of elements (factors), that is, the distance between the virtual camera for the right eye and the virtual camera for the left eye and the position of the reference plane, the stereoscopic degree in the stereoscopic display can be changed. , It can add complexity to the change in the degree of solid.

  (5) In the display control program described above, the changing unit may repeatedly change the stereoscopic parameter so that the stereoscopic parameter periodically changes. According to this configuration, since the stereoscopic parameter changes with periodicity, the stereoscopic degree in the stereoscopic display also changes with periodicity. For example, the field of view such as being underwater or drunk is periodic. It is possible to give the user a sense of delicate change with sex.

  (6) In the display control program described above, the changing unit may change the stereoscopic parameter so that the stereoscopic parameter repeatedly increases and decreases between a predetermined upper limit and a predetermined lower limit different from the upper limit. According to this configuration, it is possible to change the stereoscopic degree in the stereoscopic display so as to repeat constant increase and decrease.

  (7) In the display control program of (6) described above, the predetermined upper limit and the predetermined lower limit may be values based on a predetermined ratio of a reference value in a target stereoscopic parameter. According to this configuration, even when the reference value (eg, default value) of the stereoscopic parameter can be changed based on, for example, a user operation, the stereoscopic parameter is increased or decreased based on the changed reference value. Can do.

  (8) In the display control program of (4) described above, the changing means repeatedly changes the stereoscopic parameter so that the first distance and the second distance periodically change at different periods. May be. According to this configuration, different elements (factors) for changing the stereoscopic degree in the stereoscopic display such as the first distance and the second distance can be changed with different periods. Thereby, the stereoscopic degree in the stereoscopic display can be changed more complicatedly.

  (9) In the display control program of (4) described above, the changing unit changes the stereoscopic parameter so that the stereoscopic parameter repeatedly increases and decreases between a predetermined upper limit and a predetermined lower limit different from the upper limit. May be. Further, the predetermined upper limit and the predetermined lower limit may be values based on a predetermined ratio of a reference value in a target stereoscopic parameter. The predetermined ratio may be a ratio that is different between the first distance and the second distance. According to this configuration, the predetermined ratio to be changed from the reference value is different for two different types of elements (factors) for changing the stereoscopic degree in the stereoscopic display, that is, the first distance and the second distance. Thereby, the stereoscopic degree in the stereoscopic display can be changed more complicatedly.

  (10) In the display control program described above, the changing unit may repeatedly change the stereoscopic degree in the stereoscopic display by repeatedly changing the stereoscopic parameter. According to this configuration, a completely new effect can be provided to the user.

(11) In the display control program described above, the display processing unit may selectively cause any one of a plurality of scenes including a specific scene to be stereoscopically displayed on the display device. And
The changing unit may repeatedly change the stereoscopic parameter when a specific scene is stereoscopically displayed. According to this configuration, the effect can be provided to the user in a specific scene where the effect of repeatedly changing the solid degree is effective.

  (12) In the display control program described above, the display processing unit may cause the display device to stereoscopically display an image obtained by imaging a virtual three-dimensional space. The changing unit may repeatedly change the stereoscopic parameter when a specific event occurs in the three-dimensional space. According to this configuration, when a specific event that effectively produces an effect of repeatedly changing the stereoscopic degree in the stereoscopic display occurs, the effect can be provided to the user.

  (13) In the display control program described above, the display control device may be connected to an operation unit that receives a user operation. Further, the display processing unit may cause the display device to display a virtual three-dimensional space corresponding to the operation in a stereoscopic view. The change unit may repeatedly change the stereoscopic parameter when the operation state is a specific state. According to this configuration, when the operation state is a specific state in which the effect of repeatedly changing the stereoscopic degree in the stereoscopic display is effective (for example, in a state where an operation for moving the player character is not input). In some cases, the presentation can be provided to the user.

  (14) A display control device according to the present invention is a display control device connected to a display device capable of stereoscopic display, and includes a display processing unit and a changing unit. The display processing means repeatedly executes a process of stereoscopically displaying on the display device using a right-eye image and a left-eye image having parallax based on a stereoscopic parameter for setting a stereoscopic degree in stereoscopic display. To do. The changing means repeatedly changes the stereoscopic parameter.

  (15) A display control system according to the present invention is a display control system that is connected to a display device capable of stereoscopic display and includes a plurality of information processing devices, and includes a display processing unit and a changing unit. The display processing means repeatedly executes a process of stereoscopically displaying on the display device using a right-eye image and a left-eye image having parallax based on a stereoscopic parameter for setting a stereoscopic degree in stereoscopic display. To do. The changing means repeatedly changes the stereoscopic parameter.

  (16) A display control method according to the present invention is a display control method using a display control device connected to a display device capable of stereoscopic display, and includes a display processing step and a change step. In the display processing step, based on the stereoscopic parameter for setting the stereoscopic degree in the stereoscopic display, the process of displaying stereoscopically on the display device using the right-eye image and the left-eye image having parallax with each other is repeatedly executed. . In the changing step, the stereoscopic parameter is repeatedly changed.

  According to the display control device, the display control system, or the display control method described above, the same operational effects as the display control program of (1) are exhibited.

  According to the display control program, the display control device, the display control system, and the display control method described above, the stereoscopic degree is repeatedly changed in the stereoscopic display based on the stereoscopic parameter, so that a completely new effect can be displayed to the user. it can.

Illustration of the basic principle of stereoscopic display Illustration of the basic principle of stereoscopic display A diagram showing an example of a virtual three-dimensional space The figure which shows the image for right eyes imaged from the virtual camera CaR for right eyes, and the image for left eyes imaged from the virtual camera CaL for left eyes in the virtual space shown in FIG. Block diagram showing the internal configuration of the game device Figure showing an example of the memory map of the main memory The graph which shows the change of the distance L1 which the distance change information between cameras shows, and the change of the distance L3 which the reference plane distance change information shows The figure which shows the state which increased distance L1, without changing distance L3 in the three-dimensional space shown in FIG. The figure which shows the state which increased distance L3, without changing distance L1 in the three-dimensional space shown in FIG. The figure which shows the image for right eyes imaged from the virtual camera CaR for right eyes, and the image for left eyes imaged from the virtual camera CaL for left eyes in the virtual space shown in FIG. The figure which shows the image for right eyes imaged from the virtual camera CaR for right eyes, and the image for left eyes imaged from the virtual camera CaL for left eyes in the virtual space shown in FIG. A flowchart showing an example of main processing in game processing The flowchart which shows an example of the distance parameter production | generation process between cameras in step S3 The flowchart which shows an example of the reference plane distance parameter generation process in step S4 The flowchart which shows an example of the inter-camera distance parameter production | generation process concerning a modification The flowchart which shows an example of the inter-camera distance parameter production | generation process concerning a modification The flowchart which shows an example of the inter-camera distance parameter production | generation process concerning a modification

  Hereinafter, an embodiment to which the present invention is applied will be described with reference to the drawings. The present embodiment relates to a display control device connected to a display device capable of stereoscopic display. The display control device includes a display processing unit and a changing unit by executing the display control program. In the display processing step, the display processing unit repeats, for example, every rendering cycle, and uses a right-eye image and a left-eye image that include a common display object and have parallax from each other based on the stereoscopic parameters. Is displayed stereoscopically on the display device. Further, the changing unit repeatedly changes the stereoscopic parameter every time a predetermined time elapses, for example. Such processing executed by the display processing means and the changing means is referred to as “display control processing”. A method including the display processing step and the change step is referred to as a display control method.

(Basic principle of stereoscopic vision)
The basic principle of the stereoscopic display of the display device will be described below with reference to FIGS. 1A and 1B. 1A and 1B are explanatory diagrams of the basic principle of stereoscopic display. The display device includes a display, and this display displays two identical (common) display objects with a predetermined parallax. One of the display objects is a display object (right eye display object) for visual recognition with the user's right eye, and the other is a display object (left eye display object) for visual recognition with the user's left eye. Note that “parallax” refers to a shift between the position of the right-eye display target and the position of the left-eye display target displayed on the display. Due to this parallax, the display target is stereoscopically displayed to the user.

  The fact that there is a parallax between the position of the right-eye display target and the position of the left-eye display target is described as “the right-eye image and the left-eye image have parallax”. As shown in FIG. 1A, when the right-eye display target is displayed on the right (right when viewed from the user) and the left-eye display target is displayed on the left (left when viewed from the user), it is perceived by the user. The display target position P1 is on the back side of the display. As shown in FIG. 1B, when the right-eye display object is displayed on the left and the left-eye display object is displayed on the right, the position P1 is in front of the display. When the parallax is 0, the position P1 is the position of the display. Note that the stereoscopic method used in the present embodiment may be a method using binocular parallax, and may be, for example, a lenticular method or a parallax barrier method. In addition to autostereoscopic viewing, a left-eye image and a right-eye image are alternately displayed by a display device in a 3D television, a 3D theater, or the like, and the user uses glasses or the like to display the left-eye image. A method of stereoscopically displaying the image to the user by visually recognizing the right eye image with the left eye and the right eye may be used.

(Display control processing)
Hereinafter, display control processing that is a feature of the present embodiment will be described with reference to FIGS. 1A and 1B. As described above, in the display control process, the display control device repeats, for example, every drawing cycle, and causes the display device to perform the stereoscopic display based on the stereoscopic parameter. This stereoscopic parameter is a parameter for setting (adjusting) the stereoscopic degree in the stereoscopic display. The solid degree is determined based on the parallax between the display object for the right eye and the display object for the left eye. Accordingly, the stereoscopic parameter is a parameter for setting (changing) this parallax. In the present embodiment, this stereoscopic parameter is repeatedly changed. For this reason, the stereoscopic degree in the stereoscopic display can be changed repeatedly, and a completely new effect can be provided to the user. Furthermore, in this embodiment, the stereoscopic parameter is repeatedly changed every elapse of a predetermined time (a time shorter than the cycle) so as to periodically change. Thereby, the stereoscopic degree (stereoscopic effect) of the stereoscopic display is periodically changed (increased or decreased), and a completely new effect can be provided to the user. Thereby, for example, it is possible to give the user a feeling that the field of view changes with a periodicity, such as when the user is underwater or drunk.

(Stereoscopic parameters)
Hereinafter, specific examples of stereoscopic parameters will be described with reference to FIGS. 2 and 3. FIG. 2 is a diagram illustrating an example of a virtual three-dimensional space. When the display target is a virtual three-dimensional space, the stereoscopic parameter is the distance L1 between the right-eye virtual camera CaR (position P2a) and the left-eye virtual camera CaL (position P2b) in the three-dimensional space. It may be a parameter indicating (first distance). This parameter is hereinafter referred to as “inter-camera distance parameter”. The right-eye virtual camera CaR is a virtual camera for capturing the right-eye image, and the left-eye virtual camera CaL is a virtual camera for capturing the left-eye image.

  In the three-dimensional space, the right-eye virtual camera CaR and the left-eye virtual camera CaL are arranged so that the line of sight is substantially parallel with a distance L1 corresponding to the inter-camera distance parameter. Then, for each drawing cycle, a process (right-eye image generation process) is performed in which the three-dimensional space is projected onto the virtual screen ScR with the right-eye virtual camera CaR as the viewpoint, and the right-eye image is generated. At the same time, a process (left-eye image generation process) of generating a left-eye image by projecting the three-dimensional space onto the virtual screen ScL with the left-eye virtual camera CaL as a viewpoint is executed. In the present embodiment, only the overlapping range of the virtual screen ScR and the virtual screen ScL is rendered. Hereinafter, the range that overlaps the virtual screen ScL in the virtual screen ScR and the range that overlaps the virtual screen ScR in the virtual screen ScL may be referred to as “screen common range Sc”. When the object O in the view volume is not positioned on the virtual screens ScR and ScL (on a reference plane B described later), the projection position Or of the object O with the right eye virtual camera CaR as the viewpoint in the screen common range Sc and The distance L2 is shifted from the projection position Ol of the object O with the left-eye virtual camera CaL as the viewpoint.

  Due to the shift in the distance L2, the common part of the right-eye image and the left-eye image has a parallax corresponding to the distance L1 between the right-eye virtual camera CaR and the left-eye virtual camera CaL (as shown in FIG. 3). There is a parallax between the position of the display target and the position of the display target for the left eye). As described above, the display object is stereoscopically displayed by the parallax, and the parallax determines the stereoscopic degree in the stereoscopic display. For this reason, the stereoscopic degree in the stereoscopic display can be changed by changing the distance L1 between the virtual camera CaR for the right eye and the virtual camera CaL for the left eye. In FIG. 3, all the view volumes of the right-eye virtual camera CaR are rendered to generate a right-eye image, and all the view volumes of the left-eye virtual camera CaL are rendered to generate a left-eye image. In the present embodiment, only the range (screen common range Sc) that can be imaged in common by the virtual camera CaR for the right eye and the virtual camera CaL for the left eye is rendered. Further, in FIG. 3 (also in FIGS. 9A and 9B described later), the right-eye image and the left-eye image are shifted in the vertical direction, but actually there is no shift in the vertical direction, and the object O in the right-eye image is not. The position and the position of the object O in the left eye image are the same in the vertical direction.

  In this specific example, the inter-camera distance parameter is repeatedly changed so that the inter-camera distance parameter periodically changes. This periodic change is, for example, a change that repeatedly increases and decreases between a predetermined upper limit and a predetermined lower limit different from the predetermined upper limit. The predetermined upper limit and the predetermined lower limit may be determined based on a predetermined ratio of default values (reference values). Specifically, a value that is largely changed from the default value at a predetermined rate may be set as the predetermined upper limit, and a value that is changed slightly from the default value at the predetermined rate may be set as the predetermined upper limit value. Note that the inter-camera distance parameter can be periodically changed by periodically changing the predetermined ratio as represented by, for example, a Sin wave (sine wave) or a Cos wave. Although the change in the camera distance parameter preferably has such periodicity, this change may be expressed by any waveform. When the inter-camera distance parameter is changed, the positions (distances) of the right-eye virtual camera CaR and the left-eye virtual camera CaL are changed based on the changed inter-camera distance parameter. Thereby, the stereoscopic degree of the stereoscopic display can be periodically changed. Although it has been described that it is preferable that the change in the inter-camera distance parameter has periodicity, it is not an essential configuration of the present embodiment that this change has periodicity.

  Further, another specific example of the stereoscopic parameter will be described below with reference to FIGS. 2 and 3. The stereoscopic parameter bisects the center position P3 (for example, the position P2a and the position P2b) between the right-eye virtual camera CaR (position P2a) and the left-eye virtual camera CaL (position P2b) in the three-dimensional space at equal intervals. Parameter) indicating a distance L3 (second distance) from a position) to a predetermined position on the reference plane B (for example, the center point P4 of the reference plane B). This parameter is hereinafter referred to as “reference plane distance parameter”. The reference plane distance parameter is not limited to the parameter indicating the distance L3. For example, the distance from the right-eye virtual camera CaR and the left-eye virtual camera CaL to the reference plane B (center point P), or the right-eye virtual camera. The distance from any one of CaR and left-eye virtual camera CaL to reference plane B (center point P) may be used.

  The reference plane is a plane (zero parallax plane) that defines a position in a three-dimensional space where an object is displayed (displayed so as not to be popped out or retracted from the display) when the stereoscopic degree in the stereoscopic display is zero. It is a surface corresponding to the display. In this specific example, the reference plane B is arranged at a position based on the reference plane distance parameter. That is, the center point P4 is arranged at a position separated from the center position P3 by the distance indicated by the reference plane distance parameter in the visual line direction of the right-eye virtual camera CaR and the left-eye virtual camera CaL. The reference plane B is set to be perpendicular to the line of sight of the right-eye virtual camera CaR and the left-eye virtual camera CaL, and is set to an area where the imaging ranges of the right-eye virtual camera CaR and the left-eye virtual camera CaL overlap. Is done. Here, the object located on the reference plane B is displayed at the position of the display in stereoscopic display (zero parallax). Then, as viewed from the virtual camera for the right eye CaR and the virtual camera for the left eye CaL, the object on the back side of the reference plane B is perceived by the user to be on the back side of the display as shown in FIG. 1A. Also, the object in front of the reference plane B is perceived by the user as being in front of the display as shown in FIG. 1B.

  In the present embodiment, the virtual screens ScR and ScL are set based on the position of the reference plane B. Specifically, in the line-of-sight direction of the right-eye virtual camera CaR and the left-eye virtual camera CaL, the distance from the right-eye virtual camera CaR to the screen ScR and the distance from the left-eye virtual camera CaL to the screen ScL are the center position P3. The screens ScR and ScL are arranged so as to be the same as the distance from to the reference plane B (center point P4). Accordingly, when the distance L3 changes, the distance L2 between the projection position Or and the projection position Ol in the screen common range Sc also changes, and the degree of stereoscopic display in the stereoscopic display also changes. The rendering range of the right-eye virtual camera CaR and the left-eye virtual camera CaL is set to a range corresponding to the reference plane B (that is, the screen common range Sc).

  In this specific example, the reference plane distance parameter is repeatedly changed so that the reference plane distance parameter periodically changes. This periodic change is the same as the change in the inter-camera distance parameter, for example. When the reference plane distance parameter is changed, the position of the reference plane B is changed (updated) based on the changed reference plane distance parameter. For this reason, the distance L3 from the center position P3 to the center point P4 on the reference plane B changes periodically. Thereby, the stereoscopic degree of the stereoscopic display can be periodically changed. In addition, although it is preferable that the change of the reference plane distance parameter has periodicity, it is not an essential configuration of the present embodiment that this change has periodicity. The reference plane distance parameter may be changed repeatedly.

  As described above, the reference plane is a plane that defines a position in a three-dimensional space where an object is displayed with a stereoscopic degree of zero in stereoscopic display. Therefore, by repeatedly changing the position of the reference plane B, not only the distance L2 between the projection position Or and the projection position Ol in the screen common range Sc but also the display and the object O in the depth direction with reference to the display. The positional relationship with can be changed repeatedly.

(Specific examples)
A more specific example in which the display control device according to the present embodiment as described above is applied to the game device 1 will be described below with reference to FIG. The game apparatus 1 repeatedly changes both the inter-camera distance parameter and the reference plane distance parameter as the stereoscopic parameter, and causes the display device to stereoscopically display the display target based on these parameters.

  FIG. 4 is a block diagram showing an internal configuration of the game apparatus 1. The game apparatus 1 is connected to the stereoscopic image display apparatus 2 (an example of the display apparatus) so as to be externally attached or incorporated. The stereoscopic image display device 2 performs stereoscopic display of a display target using a right-eye image and a left-eye image. In the present embodiment, the stereoscopic image display device 2 performs stereoscopic display by a parallax barrier method. The stereoscopic image display device 2 includes a display 200 such as a liquid crystal display. For example, the display 200 displays a right-eye image and a left-eye image that are each divided into a predetermined number of strips in the horizontal direction, and the divided image of the right-eye image and the divided image of the left-eye image are displayed. Displayed alternately. A parallax barrier (not shown) is provided on the front surface of the display 200. With this parallax barrier, the right-eye image is visually recognized only by the user's right eye, and the left-eye image is visually recognized only by the user's left eye. With this configuration, the display target can be stereoscopically displayed.

  The game apparatus 1 includes a hardware slider 11, an operation unit 12, a main memory 21, a ROM 22, a memory control circuit 23, a storage data memory 24, a communication module 25, a connector 26, a VRAM (Video RAM) 27, and a CPU 31, and a CPU 31. , The components 11, 12, 21 to 27 are communicably connected by a bus (not shown). The hardware slider 11 is an operation unit for accepting an operation (slider operation) for adjusting a stereoscopic degree in stereoscopic display from a user. The operation unit 12 corresponds to the operation means of the present invention, and includes an operator for accepting a user's game operation in a game process executed on the game apparatus 1. The operation unit 12 is, for example, a cross key or a touch panel. The main memory 21 functions as a work area for the CPU 31 and temporarily stores a predetermined program acquired via the communication module 25 or the storage medium 3. The main memory 21 stores predetermined game data (including image data and the like) by executing a predetermined program.

  The ROM 22 stores a startup program (boot program). The memory control circuit 23 controls reading and writing of data with respect to the storage data memory 24 in accordance with instructions from the CPU 31. The storage data memory 24 is a rewritable nonvolatile memory, for example, a NAND flash memory. The communication module 25 has a function of transmitting / receiving data to / from another information processing apparatus (for example, a server) by wire or wireless. The connector 26 is an interface for connecting the storage medium 3 to the game apparatus 1, for example. The storage medium 3 is a computer-readable medium, for example, a semiconductor memory type storage medium (memory card or the like), an optical recording type storage medium (CD-ROM, DVD or the like), or a magnetic recording type storage medium (magnetic). Tape, floppy disk, hard disk, magnetic card, etc.).

  The VRAM 27 has an area for storing image data displayed on the display 200. In the present embodiment, the VRAM 27 has an area for storing the right-eye image data D100 and the left-eye image data D200. The right-eye image data D100 is data of the right-eye image described above. The left-eye image data D200 is the above-described left-eye image data. The stereoscopic image display device 2 performs stereoscopic display on the display 200 using the right-eye image data D100 and the left-eye image data D200 stored in the VRAM 27.

  The CPU 31 functions as display processing means (camera position changing means, image generating means, and reference plane changing means) and changing means of the present invention, and executes predetermined processing by executing a predetermined program. For example, the CP 31 executes a game process by executing a game program D1 (see FIG. 5) described later. The game program D1 (see FIG. 5) includes, for example, the display control program described above, and the CPU 31 executes the display control process described above by executing the display control program.

  Further, the CPU 31 draws a virtual three-dimensional space in real time using computer graphics technology (modeling, rendering, etc.) to generate the right eye image data D100 and the left eye image data D200. In this embodiment, the GPU is not provided, but the game apparatus 1 may be provided with a GPU, and the GPU may bear a part of the drawing process using the computer graphics technology. In this case, the GPU may function as display processing means (camera position changing means, image generating means, and reference plane changing means) and changing means of the present invention.

  FIG. 5 is a diagram illustrating an example of a memory map of the main memory 21. The main memory 21 includes a game program D1, right camera information D2, left camera information D3, object information D4, an inter-camera distance parameter D5, a reference plane distance parameter D6, an inter-camera distance default setting information D7, and a reference plane distance default setting information. D8, inter-camera distance change information D9, reference plane distance change information D10, inter-camera distance adjustment parameter D11, reference plane distance adjustment parameter D12, and the like are stored.

  The game program D1 is a program that causes the CPU 31 to execute a game process to be described later with reference to FIG. The game program D1 may be appropriately read from the storage medium 3 and stored in the main memory 21, or may be downloaded from another information processing apparatus via the communication module 25 and stored in the main memory 21. Good.

  The right camera information D2 is information indicating the position and orientation of the right-eye virtual camera CaR in the three-dimensional space. The left camera information D3 is information indicating the position and orientation of the left-eye virtual camera CaL in the three-dimensional space. The object information D4 is information indicating the position, orientation, posture, and the like of the object located in the three-dimensional space. The inter-camera distance parameter D5 is a parameter indicating the currently set distance L1 (FIG. 2) as described above. Based on the inter-camera distance parameter D5, the position of the right-eye virtual camera CaR and the position of the left-eye virtual camera CaL in the three-dimensional space are determined. As described above, the reference plane distance parameter D6 is a parameter indicating the currently set distance L3 (FIG. 2). The position of the reference plane B is determined based on the positions of the reference plane distance parameter D6, the right-eye virtual camera CaR, and the left-eye virtual camera CaL. The inter-camera distance default setting information D7 indicates a default value of the distance L1 (FIG. 2). The default value of the distance L1 is changed based on operation data from the hardware slider 11. The reference plane distance default setting information D8 indicates a default value of the distance L3 (FIG. 2).

  The inter-camera distance change information D9 is information indicating a change over time of the distance L1 (FIG. 2) (change in the rate of change from the default value). Based on the inter-camera distance change information D9, the inter-camera distance The parameter D5 is changed. Details of the change in the distance L1 based on the inter-camera distance change information D9 will be described later with reference to FIG. Further, the reference plane distance change information D10 is information indicating a change with time of the distance L3 (FIG. 2) (change in the rate of change from the default value). Based on the reference plane distance change information D10, the reference plane distance change information D10 The surface distance parameter D6 is changed. Details of the change in the distance L3 based on the reference plane distance change information D10 will be described later with reference to FIG. The inter-camera distance adjustment parameter D11 is a coefficient by which the default value indicated by the inter-camera distance default setting information D7 is multiplied, and is acquired based on the inter-camera distance change information D9. The inter-camera distance parameter D5 is updated using the inter-camera distance adjustment parameter D11. The reference plane distance adjustment parameter D12 is a coefficient by which the default value indicated by the reference plane distance default setting information D8 is multiplied, and is acquired based on the reference plane distance change information D10. The reference surface distance parameter D6 is updated using the reference surface distance adjustment parameter D12.

  Below, the display control process in a present Example is demonstrated using FIGS. In the present embodiment, as described above, the inter-camera distance parameter D5 and the reference plane distance parameter D6 are periodically changed. First, periodic changes in the inter-camera distance parameter D5 and the reference plane distance parameter D6 will be described with reference to FIG. FIG. 6 shows the transition of the “degree of change (ratio) from the default value (reference value)” of the distance L1 indicated by the inter-camera distance change information D9 and “from the default value of the distance L3 indicated by the reference plane distance change information D10. It is a graph which shows transition of "degree of change (ratio)". The graph a represents the “ratio of change from the default value” of the distance L1, and the graph b represents the “ratio of change from the default value” of the distance L3. In FIG. 6, the vertical axis represents the “ratio of change from the default value” of the inter-camera distance parameter D5 and the reference plane distance parameter D6, and the horizontal axis represents the passage of time. For example, when “the rate of change from the default value” is “0”, the default value is set as the inter-camera distance parameter D5 or the reference plane distance parameter D6. And, for example, if “the rate of change from the default value” is “+0.25”, a value of 125% of the default value is set, and the “rate of change from the default value” is “−0.25”. Then, a default value of 75% is set. In this embodiment, the inter-camera distance change information D9 and the reference plane distance change information D10 indicate the transition of the “ratio of change from the default value” of the distance L1 and the distance L3, but the inter-camera distance parameter D5. In addition, it may indicate the change of the reference surface distance parameter D6 with time.

  In FIG. 6, “the rate of change from the default value” for the distance L1 and “the rate of change from the default value” for the distance L3 periodically change so as to be expressed by a sine wave. Accordingly, the inter-camera distance parameter D5 periodically changes so as to repeatedly increase and decrease between the upper limit and the lower limit based on the “ratio of change from the default value” indicated by the inter-camera distance change information D9. Further, the reference surface distance parameter D6 periodically changes so as to repeatedly increase and decrease between the upper limit and the lower limit based on the “ratio of change from the default value” indicated by the reference surface distance change information D10. In the present embodiment, a plurality of drawing timings arrive in one cycle of the sine wave, so that the stereoscopic degree in the stereoscopic display can be continuously and smoothly changed.

  In the change indicated by the inter-camera distance change information D9, the maximum value is 125% of the default value and the minimum value is 75% of the default value. The change indicated by the reference plane distance change information D10 has a maximum value. The reference value is 120%, and the minimum value is 80% of the reference value. That is, the maximum value and the minimum value that are different between the inter-camera distance change information D9 and the reference plane distance change information D10 are set. Specifically, the maximum value of “the rate of change from the default value” of the reference plane distance change information D10 is smaller than the maximum value of “the rate of change from the default value” indicated by the inter-camera distance change information D9. Furthermore, the cycle of change of the inter-camera distance parameter D5 is different from the cycle of change of the reference plane distance parameter D6. Specifically, the period of change of the reference plane distance parameter D6 is longer than the period of change of the inter-camera distance parameter D5. For this reason, the change in the stereoscopic degree in the stereoscopic display is more strongly affected by the change in the inter-camera distance parameter D5 than the influence of the change in the reference plane distance parameter D6. By setting the relationship between the change in the inter-camera distance parameter D5 and the change in the reference plane distance parameter D6 in this way, it is possible to provide a suitable effect for the user.

  The reason why it is preferable to set the relationship between the change in the inter-camera distance parameter D5 and the change in the reference plane distance parameter D6 as described above will be described below with reference to FIGS. 2 and 7 to 9B. FIG. 7 is a diagram illustrating a state in which the distance L1 is increased without changing the distance L3 in the three-dimensional space illustrated in FIG. FIG. 8 is a diagram illustrating a state in which the distance L3 is increased without changing the distance L1 in the three-dimensional space illustrated in FIG. 9A is a diagram illustrating a right-eye image captured from the right-eye virtual camera CaR and a left-eye image captured from the left-eye virtual camera CaL in the virtual space illustrated in FIG. FIG. 9B is a diagram illustrating a right-eye image captured from the right-eye virtual camera CaR and a left-eye image captured from the left-eye virtual camera CaL in the virtual space illustrated in FIG. 8.

  As shown in FIG. 7, when the distance L1 is increased, the distance L2 becomes larger than in the state shown in FIG. 2, and the parallax between the right-eye image and the left-eye image is increased as shown in FIG. 9A. The solid degree in the display changes. However, the relative positional relationship between the reference plane B and the object O does not change, and therefore the relative positional relationship between the display 200 and the object O does not change. On the other hand, when the distance L3 is increased as shown in FIG. 8, the parallax between the right-eye image and the left-eye image changes as shown in FIG. 9B, and the relative positional relationship between the reference plane B and the object O is changed. Will also change. Until the position of the reference plane B exceeds the object O, the position of the object O in the right-eye image and the position of the object O in the left-eye image approach each other, and after the position of the reference plane B exceeds the object O, The position of the object O in the right-eye image and the position of the object O in the left-eye image are reversed left and right. Therefore, when the reference plane B exceeds the object O, the object O is stereoscopically displayed on the back side of the display 200 as shown in FIG. 1A, but is stereoscopically displayed on the near side as shown in FIG. 1B. Is displayed.

  As described above, when the position of the reference plane B (distance L3) is changed, the relative positional relationship between the display 200 and the object O is changed. The process of changing the distance L3 having such characteristics is performed in addition to the process of changing the distance L1, and the degree of solidity is changed by changing a plurality of parameters. Provides visually interesting effects.

  An example of the game process according to the present embodiment will be described below with reference to FIGS. 2 and 10 to 12. FIG. 10 is a flowchart illustrating an example of a main process in the game process. Note that the order of processing in FIG. 10 and FIGS. 11 to 13B described later is merely an example, and the order of processing can be appropriately changed when the effects of the present invention are achieved. The game process is performed by the CPU 31 by executing the game program D1, for example, when an instruction to start the game program D1 is received from the user. First, the CPU 31 constructs a virtual three-dimensional space and executes predetermined initial processing such as arranging the right-eye virtual camera CaR and the left-eye virtual camera CaL at a predetermined default position (S1). And CPU31 acquires operation data, such as a user's game operation input from the operation part 12 (S2). Next, the CPU 31 executes a process for generating the inter-camera distance parameter D5 (inter-camera distance parameter generation process) (S3) and executes a process for generating the reference plane distance parameter D6 (reference plane distance parameter generation process). (S4).

  Subsequently, the CPU 31 determines the positions and orientations of the right-eye virtual camera CaR and the left-eye virtual camera CaL, and the determined positions and orientations between the right-eye virtual camera CaR and the left-eye virtual camera CaL in the three-dimensional space. The position and orientation are changed (S5). The determination of the positions and orientations of the right-eye virtual camera CaR and the left-eye virtual camera CaL is performed in, for example, the operation data (including operation information indicating the change of the camera position and orientation) acquired in step S2 and the main memory 21. The stored inter-camera distance parameter D5, right camera information D2 (indicates the position and orientation of the right eye virtual camera CaR in the previous frame) and left camera information D3 (indicates the position and orientation of the left eye virtual camera CaL in the previous frame) ). Specifically, the position of the right-eye virtual camera CaR and the position of the left-eye virtual camera CaL are determined so as to increase the distance L1 indicated by the inter-camera distance parameter D5. Thereafter, the right camera information D2 and the left camera information D3 stored in the main memory 21 are changed (updated) so as to indicate the determined position and orientation.

  Then, the CPU 31 determines the position of the reference plane B, and changes the position of the reference plane B in the three-dimensional space to the determined position (S6). The position of the reference plane B is determined based on the positions and orientations of the right-eye virtual camera CaR and the left-eye virtual camera CaL determined in step S5 and the reference plane distance parameter D6 stored in the main memory 21. Done. Specifically, a position separated by a distance L3 indicated by the reference plane distance parameter D6 from the center position P3 toward the line of sight of the right-eye virtual camera CaR and the left-eye virtual camera CaL is the center point P4 of the reference plane B. Is determined as the position.

  Then, the CPU 31 performs predetermined game-related processing such as moving the object O in the three-dimensional space based on the operation data (S7). Thereafter, the CPU 31 performs the right eye image generation process (S8) and the left eye image generation process (S9). Thereafter, the CPU 31 uses the right-eye image data D100 and the left-eye image data D200 generated in steps S8 and S9 and stored in the VRAM 27 to cause the stereoscopic image display device 2 to stereoscopically display the three-dimensional space. (Stereoscopic display processing) is performed (S10). Then, the CPU 31 determines whether or not the game is over (S11). When it is determined that the game is over (YES in S11), the game process is ended. When it is determined that the game has not ended (NO in S11), the CPU 31 returns the game process to step S2, and until it is determined that the game has ended (YES in S11), every predetermined drawing cycle (for example, 1/60 sec). Steps S2 to S11 are repeated every time.

  Hereinafter, the inter-camera distance parameter generation processing in step S3 will be described with reference to FIG. FIG. 11 is a flowchart showing an example of the inter-camera distance parameter generation processing in step S3. First, the CPU 31 determines whether or not there is input of operation data (slider operation data) from the hardware slider 11 (S21). If it is determined that operation data is input from the hardware slider 11 (YES in S21), the CPU 31 acquires the operation data (S22), and proceeds to the subsequent step S23. If it is determined that no operation data is input from the hardware slider 11 (NO in S21), the CPU 31 proceeds to the subsequent step S23 without executing step S22.

  In step S23, the CPU 31 generates an inter-camera distance adjustment parameter D11 (S23). The inter-camera distance adjustment parameter D11 is generated based on, for example, the elapsed time from the start of the game process and the inter-camera distance change information D9. For example, the method for generating the inter-camera distance adjustment parameter D11 will be described with reference to FIG. 6. The “ratio of change from the default value” corresponding to the elapsed time is acquired, and the “ratio of change from the default value” is obtained. A coefficient for changing the default value is generated as the inter-camera distance adjustment parameter D11 (1.25 if the change amount is 0.25). Thereafter, the CPU 31 generates an inter-camera distance parameter D5 based on the inter-camera distance adjustment parameter D11 (S24). For example, in step S24, when the operation data from the hardware slider 11 is acquired in step S22, the inter-camera distance default setting information D7 is changed based on the operation data. Then, the inter-camera distance parameter D5 is generated by multiplying the default value indicated by the inter-camera distance default setting information D7 by the inter-camera distance adjustment parameter D11. The CPU 31 updates the main memory 21 with the inter-camera distance parameter D5. Thereafter, the CPU 31 returns the process to the main process.

  Hereinafter, the reference plane distance parameter generation processing in step S4 will be described with reference to FIG. FIG. 12 is a flowchart showing an example of the reference plane distance parameter generation process in step S4. First, the CPU 31 generates a reference plane distance adjustment parameter D12 (S31). The reference plane distance adjustment parameter D12 is generated based on, for example, the elapsed time from the start of the game process and the reference plane distance change information D10. For example, with reference to FIG. 6, the generation method of the reference plane distance adjustment parameter D12 will be described. The “ratio of change from the default value” corresponding to the elapsed time is acquired, and the “ratio of change from the default value” A coefficient for changing the default value is generated as the reference plane distance adjustment parameter D12 (1.20 if the change amount is 0.20). Thereafter, the CPU 31 generates a reference surface distance parameter D6 based on the reference surface distance adjustment parameter D12 (S32). For example, in step S32, the reference plane distance parameter D6 is generated by multiplying the default value indicated by the reference plane distance default setting information D8 by the reference plane distance adjustment parameter D12. The CPU 31 updates the main memory 21 with the reference plane distance parameter D6. Thereafter, the CPU 31 returns the process to the main process.

  As described above, according to the present embodiment, since the stereoscopic parameters such as the inter-camera distance parameter D5 and the reference plane distance parameter D6 are repeatedly changed, the stereoscopic degree of the stereoscopic display is repeatedly changed. Thereby, a completely new effect can be provided to the user. Further, the stereoscopic parameter is repeatedly changed every predetermined time so that the stereoscopic parameter periodically changes. As a result, the stereoscopic degree of the stereoscopic display periodically changes (increases / decreases). For example, the sense that the field of view changes with a periodicity, such as when the user is underwater or drunk, etc. Can be given to the user.

[Modification]
(1) According to the above embodiment, the hardware slider 11 is configured to change the default value indicated by the inter-camera distance default setting information D7. However, such a configuration may not be provided.

  (2) According to the above embodiment, the stereoscopic parameter is changed for each drawing cycle, but the present invention is not limited to this configuration. The stereoscopic parameter may be changed every elapse of a predetermined time that is shorter than the period of change of the stereoscopic parameter and is different from the drawing period. Further, if the stereoscopic parameter is repeatedly changed, it is not necessary to periodically change the stereoscopic parameter every elapse of a predetermined time, and may be repeatedly changed irregularly. Further, according to the above embodiment, the change of the stereoscopic parameter is constant, but for example, when a specific condition is satisfied, the method of changing the stereoscopic parameter (for example, from the change cycle or “default value”). The rate of change of “)” may be changed. The specific condition is, for example, that a specific object (a ship object or a large fish object) approaches within a predetermined distance from the player character in an underwater scene.

  (3) In addition, any of a plurality of display objects corresponding to a plurality of scenes including a specific scene is selectively stereoscopically displayed, and a three-dimensional space corresponding to the specific scene is stereoscopically displayed. Only occasionally the stereoscopic parameters may be changed repeatedly. The multiple types of scenes are, for example, multiple types of game scenes. The game is divided into units called “scenes” in advance according to the progress of the scenario. For example, the multiple types of scenes include a scene for exploring a cave, a scene for exploring a forest, a scene for exploring underwater, and the like. One of these scenes (for example, a scene for exploring underwater) is a specific scene.

  FIG. 13A is a flowchart illustrating an example of an inter-camera distance parameter generation process according to a modification of the above embodiment. As shown in FIG. 13A, after execution of step S22 and before execution of step S23, the CPU 31 determines whether or not the three-dimensional space representing the specific scene is stereoscopically displayed (S51), and step S51. When step S23 is YES, step S23 is executed. When step S51 is NO, step S23 is not executed. Then, after execution of step S23 and before execution of step S24, the CPU 31 is in a state in which the three-dimensional space representing the specific scene is displayed in a stereoscopic view, and in the state where there is an operation on the hardware slider 11 It is determined whether any of the above is true (S52). Then, the CPU 31 executes step S24 only when YES in step S52, and does not execute step S24 when NO in step S52. In this modification, the reference plane distance parameter generation process shown in FIG. 12 is executed only when a three-dimensional space representing a specific scene is displayed in a stereoscopic view. According to this modified example, if the stereoscopic degree in the stereoscopic display is repeatedly changed, the stereoscopic parameter is repeatedly changed only for an effective specific scene (for example, an underwater scene).

  (4) The stereoscopic parameter may be changed repeatedly only when a specific event occurs in the three-dimensional space. This specific event is an effective game event if the stereoscopic degree in the stereoscopic display is repeatedly changed. For example, an event in which a player (player character, etc.) is beaten by another character, or a player specifies It is an event such as acquiring items (such as liquor and medicine items).

  FIG. 13B is a flowchart illustrating an example of an inter-camera distance parameter generation process according to a modification of the above embodiment. As shown in FIG. 13B, after execution of step S22 and before execution of step S23, the CPU 31 determines whether or not it is within a predetermined period from the occurrence of a specific event (S61), and YES in step S61. Only when the step S23 is executed, when the answer is NO in the step S61, the step S23 is not executed. Then, after execution of step S23 and before execution of step S24, the CPU 31 is in a state of whether or not it is within a predetermined period from the occurrence of a specific event and a state in which an operation has been performed on the hardware slider 11. It is determined whether or not any of them corresponds (S62). Then, the CPU 31 executes step S24 only when YES in step S62, and does not execute step S24 when NO in step S62. In this modification, the reference plane distance parameter generation process shown in FIG. 12 is executed only when a specific event occurs and within a predetermined period. According to this modified example, if the stereoscopic degree in the stereoscopic display is repeatedly changed, the stereoscopic parameter can be periodically changed only when an effective specific event occurs.

  (5) In addition, the stereoscopic parameter may be repeatedly changed only when the state of the game operation is in a specific state. The game operation is an operation for changing a virtual three-dimensional space (for example, a game operation for moving a player character). An operation on the hardware slider 11, an operation for changing game settings, and the like Not included. Further, “when the state of the game operation is in a specific state” is a state where a specific game operation (for example, a game operation for moving the player character) is not input from the user, for example.

  FIG. 13C is a flowchart illustrating an example of the inter-camera distance parameter generation processing according to the modified example of the embodiment. As shown in FIG. 13C, after execution of step S22 and before execution of step S23, the CPU 31 determines whether or not the game operation state is a specific state (S71), and when YES in step S71 Step S23 is executed only, and if NO in Step S71, Step S23 is not executed. Then, after the execution of step S23 and before the execution of step S24, the CPU 31 determines whether the game operation state corresponds to either a specific state or a state in which the hardware slider 11 has been operated. Is determined (S72). Then, the CPU 31 executes step S24 only when YES in step S72, and does not execute step S24 when NO in step S72. In this modification, the reference plane distance parameter generation process shown in FIG. 12 is executed only when the game operation state is a specific state. According to this modification, even if the stereoscopic degree in the stereoscopic display is repeatedly changed, the stereoscopic parameter can be changed repeatedly only when the user's game operation is not hindered.

(6) According to the above embodiment, both the inter-camera distance parameter D5 and the reference plane distance parameter D6 are repeatedly changed, but either one may be used. Further, although the orientations of the right-eye virtual camera CaR and the left-eye virtual camera CaL are not repeatedly changed, the orientations of the right-eye virtual camera CaR and the left-eye virtual camera CaL may be repeatedly changed as stereoscopic parameters.
(7) In the above embodiment, the display target is a three-dimensional space, but is not limited to this, and may be the real world actually captured by the right-eye camera and the left-eye camera. Further, in the display control apparatus, the right-eye image and the left-eye image may be displayed on the display device using the right-eye image and the left-eye image that are generated in advance without generating the right-eye image and the left-eye image.

  (8) In the above-described embodiment, the display control process is included in the game process, but is not limited to this, and may be performed regardless of the game process.

  (9) The display control device may be an information processing device that can be connected to an externally or built-in display device capable of stereoscopic display. For example, a portable game device, a PDA (Personal Digital Assistant), a mobile phone It is a stationary game device or a personal computer connected to a 3D television receiver (including a smartphone). In addition, a part of the display control processing of the display control device may be borne by another information processing device such as a server, and the display control system is configured by a plurality of information processing devices including the display control device and another information processing device. It may be configured.

DESCRIPTION OF SYMBOLS 1 Game device 2 Stereoscopic image display device 12 Operation part D1 Game program D5 Inter-camera distance parameter D6 Reference plane distance parameter D100 Right-eye image data D200 Left-eye image data

Claims (16)

A display control device computer connected to a display device capable of stereoscopic display,
Display processing for repeatedly performing stereoscopic display on the display device using a right-eye image and a left-eye image having parallax based on a stereoscopic parameter for setting a stereoscopic degree in the stereoscopic display Means, and changing means for repeatedly changing the stereoscopic parameter,
Display control program to function as. In the right-eye image and the left-eye image, a virtual three-dimensional space is drawn,
The stereoscopic parameter includes at least a first distance between a right-eye virtual camera and a left-eye virtual camera arranged in the three-dimensional space,
The display processing means includes
Camera position changing means for changing a distance between the right-eye virtual camera and the left-eye virtual camera based on the stereoscopic parameter changed by the changing means, and the three-dimensional space from the right-eye virtual camera Image generation means for repeatedly generating the right-eye image obtained by imaging the left-eye image obtained by imaging the three-dimensional space from the left-eye virtual camera,
The display control program according to claim 1. In the right-eye image and the left-eye image, a virtual three-dimensional space is drawn,
The stereoscopic parameter is a distance from a right-eye virtual camera and / or a left-eye virtual camera arranged in the three-dimensional space to a reference plane, or a predetermined position between the right-eye virtual camera and the left-eye virtual camera. At least a second distance that is a distance from the reference plane to
The display processing means includes
Reference plane changing means for changing the position of the reference plane based on the stereoscopic parameter changed by the changing means, the right-eye image obtained by imaging the three-dimensional space from the right-eye virtual camera, and the left eye Image generation means for repeatedly generating the left-eye image obtained by imaging the three-dimensional space from the virtual camera for the image based on the reference plane,
The display control program according to claim 1. There are a plurality of the stereoscopic parameters, and in addition to the first distance, the plurality of stereoscopic parameters include a distance from the right-eye virtual camera and / or the left-eye virtual camera to a reference plane, or the right-eye virtual parameter. At least a second distance that is a distance from a predetermined position between the camera and the left-eye virtual camera to the reference plane;
In addition to the camera position changing unit and the image generating unit, the display processing unit further includes a reference plane changing unit that changes the position of the reference plane based on the second distance changed by the changing unit. Including
The image generation means, based on the reference plane, the right-eye image obtained by imaging the three-dimensional space from the right-eye virtual camera and the left-eye image obtained by imaging the three-dimensional space from the left-eye virtual camera. Repeatedly generate
The display control program according to claim 2.   The display control program according to any one of claims 1 to 4, wherein the changing unit repeatedly changes the stereoscopic parameter so that the stereoscopic parameter periodically changes.   The said change means changes the said stereoscopic vision parameter so that the said stereoscopic vision parameter repeats increase / decrease between the predetermined upper limit and the predetermined lower limit different from the said upper limit, The change in any one of Claim 1 to 5 Display control program. The predetermined upper limit and the predetermined lower limit are values based on a predetermined ratio of a reference value in the target stereoscopic parameter.
The display control program according to claim 6. The changing means repeatedly changes the stereoscopic parameter so that the first distance and the second distance periodically change at different periods, respectively.
The display control program according to claim 4. The changing means changes the stereoscopic parameter so that the stereoscopic parameter repeatedly increases and decreases between a predetermined upper limit and a predetermined lower limit different from the upper limit,
The predetermined upper limit and the predetermined lower limit are values based on a predetermined ratio of a reference value in the target stereoscopic parameter,
The predetermined ratio is a ratio different between the first distance and the second distance,
The display control program according to claim 4. The display control program according to claim 1, wherein the changing unit repeatedly changes the stereoscopic degree in the stereoscopic display by repeatedly changing the stereoscopic parameter. The display processing unit selectively causes any one of a plurality of scenes including a specific scene to be stereoscopically displayed on the display device,
The changing means repeatedly changes the stereoscopic parameter when the specific scene is stereoscopically displayed.
The display control program according to claim 1. The display processing means stereoscopically displays an image obtained by capturing a virtual three-dimensional space on the display device,
The changing means repeatedly changes the stereoscopic parameter when a specific event occurs in the three-dimensional space.
The display control program according to claim 1. The display control device is connected to an operation means for receiving a user operation,
The display processing means stereoscopically displays a virtual three-dimensional space corresponding to the operation on the display device,
The changing means repeatedly changes the stereoscopic parameter when the state of the operation is a specific state.
The display control program according to claim 1. A display control device connected to a display device capable of stereoscopic display,
Display processing for repeatedly performing stereoscopic display on the display device using a right-eye image and a left-eye image having parallax based on a stereoscopic parameter for setting a stereoscopic degree in the stereoscopic display Means, and changing means for repeatedly changing the stereoscopic parameter,
A display control device. A display control system connected to a display device capable of stereoscopic display and comprising a plurality of information processing devices,
Display processing for repeatedly performing stereoscopic display on the display device using a right-eye image and a left-eye image having parallax based on a stereoscopic parameter for setting a stereoscopic degree in the stereoscopic display Means, and changing means for repeatedly changing the stereoscopic parameter,
A display control system comprising: A display control method using a display control device connected to a display device capable of stereoscopic display,
Based on a stereoscopic parameter for adjusting the stereoscopic degree in the stereoscopic display, the display target is displayed on the display device using a right-eye image and a left-eye image that include a common display target and have parallax with each other. A display processing step for repeatedly executing a stereoscopic display process, and a changing step for repeatedly changing the stereoscopic parameter;
A display control method including:

Images