JP2019086961A - Apparatus and program for image processing - Google Patents

Abstract

To provide an apparatus for image processing adapted to create a 3DCG image increased in speed feeling without increasing the data for a virtual three-dimensional space that is a subject of image processing.SOLUTION: An image processing apparatus in the present invention has a plurality of displays that display an entire image sectionally in ranges corresponding respectively thereto, setting means that sets up a position of a virtual camera in a virtual three-dimensional space, image generation means that generates an image as viewing the virtual three-dimensional space from the virtual camera by projecting an object included in an angle of view of the virtual camera to perspective projection surfaces corresponding respectively to the plurality of displays, changing means that dynamically changes the position of the virtual camera, angle-of-view setting means that sets an angle of view of an entirety after a positional change of the virtual camera equal to that before the change, and image processing means that performs different image processing on an image created corresponding to a first display that displays a side close to an end of the entire image out of the plurality of displays from an image corresponding to another second display.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an image processing apparatus and an image processing program.

  Conventionally, a game apparatus (image processing apparatus) is known which moves a vehicle such as a car or a train, or an aircraft in a virtual three-dimensional space (object space). The game device virtually sets a camera (viewpoint) position in a virtual three-dimensional space, generates an image (3DCG (computer graphics) image) representing a state where the virtual three-dimensional space is viewed from this camera, and displays it on a display. Display. The game device generates a 3DCG image according to, for example, the position or speed of a vehicle or aircraft controlled according to the user's operation.

  Also, the conventional game apparatus not only displays 3DCG images that change according to the speed of the vehicle or aircraft, but also moves the position of the virtual camera to change the angle of view so that a sense of speed can be obtained. There is one that generates a 3DCG image (for example, Patent Document 1). In the game device described in Patent Document 1, moving the camera angle and the arrangement position of the camera to widen the angle of view enables obtaining an image with an increased sense of speed.

JP, 2006-326331, A

  As described above, in the prior art, image processing is performed in which the sense of speed is changed by adjusting the angle of view. However, widening the angle of view to increase the sense of speed enlarges the range of the virtual three-dimensional space to be displayed, and data of the virtual three-dimensional space for that is necessary to display the enlarged 3DCG image. Become. In addition, image processing for generating a 3DCG image of the expanded range is increased, and processing is complicated when the range of the virtual three-dimensional space to be displayed changes according to the change of the angle of view. In the conventional image processing, the data of the virtual three-dimensional space in the expanded range is increased by widening the angle of view, and the increase in the image processing load is not considered.

  The present invention has been made in consideration of the above-described circumstances, and an object thereof is to generate a 3DCG image with an increased sense of speed without increasing data in a virtual three-dimensional space to be subjected to image processing. An image processing apparatus and an image processing program are provided.

  In order to solve the above problems, an image processing apparatus according to the present invention sets a position of a virtual camera in a virtual three-dimensional space, and a plurality of displays for displaying the entire image in a divided range for each corresponding range. An image generation unit configured to generate an image of the virtual three-dimensional space viewed from the virtual camera by projecting an object included in an angle of view of the virtual camera on a perspective projection plane corresponding to each of the plurality of displays; A change means for dynamically changing the position of the virtual camera, an angle of view setting means for setting the entire angle of view after the change of the position of the virtual camera to be the same as before the change, and Image processing different from the image corresponding to the other second display with respect to the image generated corresponding to the first display displaying the end vicinity side of the whole image among them And an image processing means for.

  According to the present invention, it is possible to generate a 3DCG image with an increased sense of speed without increasing data in a virtual three-dimensional space to be subjected to image processing.

FIG. 2 is an external perspective view of a case 50 of the game device 20 according to the present embodiment. FIG. 2 is an external view showing an appearance of an operation unit housed in a housing 50 of the game apparatus 20 in the present embodiment. FIG. 2 is a perspective view showing an appearance of a driver's cab 60 provided in an operation unit of the game apparatus 20 in the present embodiment. FIG. 2 is a block diagram showing a functional configuration of the game device 20 in the present embodiment. FIG. 7 is a view showing a display example of the displays 62, 63R, 63L and the touch panel 77 of the game apparatus 20 in the present embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. The figure for demonstrating display control of the game image by the game device 20 in this embodiment. 6 is a flowchart showing an operation of display control of a game image in the present embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The embodiment will be described on the assumption that the image processing apparatus is realized by the game device. Note that the image processing apparatus of the present invention is not limited to the game apparatus, but virtually sets the position of a camera (viewpoint) in a virtual three-dimensional space, and displays an image (3DCG) showing the virtual three-dimensional space viewed from this camera. It may be realized by another device that generates (computer graphics) images.

  FIG.1, FIG.2, and FIG.3 are figures which show the external appearance structure of the game device 20 in this embodiment. The game device 20 provides, for example, a driving simulation game, and controls a train (object) traveling on a track in a virtual three-dimensional space in accordance with the operation of the player. The game device 20 generates a 3DCG image representing the view seen from the cab according to the travel of the train, and causes the display to display the 3DCG image.

  1 is an external perspective view of the case 50 of the game apparatus 20, FIG. 2 is an external view showing an external view of an operation unit housed in the case 50 of the game apparatus 20, and FIG. 3 is an operation unit of the game apparatus 20. The perspective view which shows the external appearance of the driver's cab 60 provided in these is shown, respectively.

  As shown in FIG. 1, the case 50 of the game apparatus 20 in the present embodiment is substantially box-shaped, and a part of the front is side plates 52A and 52B, the right side is a side plate 51R, and the left side is a side plate 51L. Covering. A side plate is not provided, for example, on the right side of the front surface of the housing 50, and an entrance 53 for the player to enter and exit the housing 50 is formed. Transparent windows 52Aa, 52Ba, 51Ra formed of transparent members such as glass or acrylic plate are provided on the side plates 52A, 52B, the side plate 51R, and the side plate 51L, respectively. Thereby, even from the outside of the case 50, it is possible to visually recognize the state of the player operating the driver's cab 60 inside the case 50, the image displayed on the display, and the like.

  Further, a card reader 54 is provided in the vicinity of the entrance 53, for example, the side plate 52B. The card reader 54 is provided, for example, at the height of the waist of the player so that the player can easily read the card for player identification by the card reader 54. The card reader 54 reads data from a game card (storage medium) storing card specific data (card ID) by proximity wireless communication without contact. The player can read the card ID recorded on the game card, for example, by bringing the game card close to (or holding) the card reader 54 before entering the inside of the housing 50. Further, an LED panel 55 is provided on the upper front of the housing 50. The LED panel 55 displays, for example, a game title, an execution state of the game, and the like.

  As shown in FIG. 2, a cab 60 is installed at the center of the front of the inside of the housing 50, a display 62 is provided at the upper center of the cab 60, a display 63R on the right of the display 62, and a display on the left 63L is installed. The game device 20 displays a game image (video) representing a scene in front of the driver's seat during the driving simulation game by means of the three displays 62, 63R, 63L. Further, it is also possible to individually display images of different contents on the three displays 62, 63R, 63L according to the game situation.

  A plurality of lights (lights 55a1, 55a2,..., 55am shown in FIG. 4) capable of illuminating different colors are attached to a plurality of locations, for example, in the inside of the housing 50. The plurality of lights are used for normal lighting, for example, for effecting by lighting / flashing before the game starts.

  As shown in FIG. 3, on the operation surface 70 of the driver's cab 60, a mass controller (master controller) 72, a brake lever 73, a coin insertion slot (not shown), and the like are provided.

  The mask controller 72 is operated by the player at the time of execution of the driving simulation game, and is configured to simulate a master controller mounted on an actual train. The acceleration and deceleration (braking) of the train can be controlled by one mascot 72. The brake lever 73 is provided to simulate an actual train. Since the brake lever 73 can also be operated for braking the train by the mass controller 72, driving simulation can be performed without any operation, but the brake lever 73 can be operated for braking or suddenly It can be used to perform operations for controlling brakes and special functions of the game (display content switching, etc.).

  At the upper front center of the cab 60, a touch panel 77 is provided. The touch panel 77 displays various information representing the state of a train, for example, a pressure gauge, speedometer, other signal states, warning lights, indoor air conditioning, destinations, guidance in a car, buttons and switches, etc. Do. The touch panel 77 can detect a touch operation by the player. The touch panel 77 can display, for example, different images for each train according to the train traveling on a route to be a game target selected by the player.

  In addition, speakers 78R and 78L are provided on the upper front left and right of the cab 60, respectively. A seat 56 (shown in FIG. 1) for the player to sit on is provided on the front of the driver's cab 60 (inside the housing 50 of the side plate 52B). For example, two speakers (speakers 78BL and 78BR shown in FIG. 4) are provided at the left and right positions near the head of the side plate 52B when the player sits on the seat 56 on the inner side of the case 50 of the side plate 52B. The game device 20 can output the same sound effects as when actually running a train by speakers respectively provided in front of and behind the player. At the lower part of the cab 60, a pedal 79 operated by the player with a foot is provided.

FIG. 4 is a block diagram showing a functional configuration of the game device 20 in the present embodiment.
As shown in FIG. 4, the game apparatus 20 includes a control unit 90, a storage unit 92, a display controller 93, a touch panel controller 94, a sound controller 95, a writing controller 96, an input interface 97, and a coin sensor 99.

  The control unit 90 controls the entire game device 20, and includes a processor (CPU or DSP), a memory, and the like. The control unit 90 controls each unit by causing the processor to execute a basic program (OS (Operating System)) stored in the storage unit 92 and various application programs. By executing the game program 92 a stored in the storage unit 92, the control unit 90 realizes various functions for executing a game controlled in accordance with an input operation on the operation lever of the mask controller 72.

  The functions realized by the control unit 90 include a game processing unit 90a (game image display processing unit 90a1, operation processing unit 90a2), and an input control unit 90b.

  The game processing unit 90a controls the game in the game mode designated by the player based on the game data 92c. The game processing unit 90a includes functions of a game image display processing unit 90a1 and an operation processing unit 90a2.

  Based on the game data 92c, the game image display processing unit 90a displays a game image representing the view ahead of the driver's seat on the route to be simulated and various information related to the game, and further an image for demonstration and images for effect. In addition to displaying on 63 L and 63 R, various information related to the input operation of the player is displayed on the touch panel 77 (display 77 a). The game video display processing unit 90a1 generates a 3DCG image (video) representing a scene in front of the driver's seat to be displayed on the displays 62, 63L, 63R.

  The operation processing unit 90a2 performs acceleration or deceleration (braking) according to the input data based on the input data according to the operation on the mass controller 72 and the pedal sensor 79a provided on the pedal 79, which is input through the input control unit 90b. Generate each data of speed.

  The input control unit 90 b controls data input from a pedal sensor 79 a provided on the mask controller 72 a and the pedal 79 in accordance with the operation of the player input through the input interface 97.

  The storage unit 92 stores programs and data for controlling the game executed on the game device 20. The programs stored in the storage unit 92 include, in addition to the basic program, a game program 92a for executing a game on the game apparatus 20, and a game video processing program 92b (image processing program) for generating a game video (image). included. The game program 92a and the game video processing program 92b can realize various functions by being executed by a processor or the like.

  The game video processing program 92b generates a 3DCG image representing a view seen from the driver's cab 60 according to the travel of the train, and executes a game video display process for displaying on the display. In the present embodiment, the angle of view from the camera (viewpoint) set in the virtual three-dimensional space is changed according to the speed of the train traveling in the game space. That is, as the train speed increases, the position of the virtual camera (viewpoint) set in the virtual three-dimensional space (the distance between the display 62, 63R, 63L and the camera) is changed to widen the angle of view, Generates an image that feels like a sense of speed. In the present embodiment, an image is generated without increasing the data of the virtual three-dimensional space in the expanded range by widening the angle of view.

  In addition, game data 92 c is stored in the storage unit 92. The game data 92 c includes object data that defines a virtual three-dimensional space (object space) for realizing driving simulation performed by the game device 20.

  The input interface 97 controls input of sensor data from the pedal sensor 79a according to the operation of the pedal 79 and sensor data according to the operation of the control lever of the mass controller 72a under the control of the control unit 90.

  The touch panel controller 94 controls the touch panel 77 under the control of the control unit 90. The touch panel 77 includes a display 77 a and a touch pad 77 b.

  The sound controller 95 controls audio output from the speakers 78 L, 78 R, 78 BL, 78 BR and the headphone terminal 57 under the control of the control unit 90. When a headphone plug is attached to the headphone terminal 57, the sound controller 95 stops audio output from the speakers 78L, 78R, 78BL, 78BR. Further, a volume button 58 and a microphone 59 are connected to the sound controller 95. The volume button 58 is provided, for example, on a control panel for the manager of the game device 20 housed inside the housing, and is used for adjusting the volume balance and the like. The microphone 59 is used to input the voice of the player playing as a conductor, for example, when performing driving simulation by two people (two-person mode).

The lighting controller 96 controls the lighting / blinking of the plurality of lights 55a1, 55a2,..., 55am, the display pattern and the color of the LED panel 55, and the like under the control of the control unit 90. For example, the lighting controller 96 lights or blinks the lights 55a1, 55a2, ..., 55am according to the effects corresponding to the card IDs (players) under the control of the effect processing unit 90a3 before the game is started. Switch the display pattern etc.
The coin sensor 99 detects a coin inserted from the coin insertion slot, and notifies the control unit 90 of the coin.

Next, display control of a game image by the game device 20 of the present embodiment will be described.
FIG. 5 is a view showing a display example of the displays 62, 63R, 63L and the touch panel 77 of the game apparatus 20 in the present embodiment. The game processing unit 90a generates a 3DCG image representing a view seen from the driver's cab 60 according to the travel of the train by the game image display processing unit 90a1 (game image processing program 92b) as the game is executed, and the display 62 , 63R, 63L. In FIG. 5, objects such as tracks extending in the front (traveling direction), tracks laid next to each other in parallel, overhead wires corresponding to the respective tracks, structures around the tracks, surrounding scenery (roads, trees, buildings, etc.) Is displayed. In the game data 92c, each object existing in the virtual 3D space displayed in the game image is defined, and a 3DCG image is generated based on the data of each object.

  As shown in FIG. 5, the display 62, 63R, 63L is a partial game image of the range according to the direction of each display seen from the driver's cab 60 among the game images showing the whole scenery ahead of the driver's seat on the displays 62, 63R, 63L. Is displayed respectively. Therefore, the game images displayed on the displays 62, 63R, 63L are controlled so as to maintain the continuity of the objects so as not to give a sense of discomfort to the player sitting in the cab 60 and playing the game. For example, linear objects displayed separately as the display 62 and the display 63R or the display 62 and the display 63L are displayed so as to represent a straight line between the two displays.

  Hereinafter, in order to simplify the description, display control of a game image by the game device 20 according to the present embodiment will be described by representing an object existing in the virtual 3D space as a simple figure.

  FIG. 6 is a diagram showing the positional relationship between objects present in the virtual 3D space and the displays 62, 63R, 63L in the present embodiment. In FIG. 6, frames DM, DR, and DL correspond to the displays 62, 63R, and 63L, respectively, and correspond to projection planes on which objects present in the virtual 3D space are projected by perspective projection transformation. The straight line object OB1 (OB1-1 to OB) is, for example, an object representing a track or a road. The straight line object OB1 is assumed to coincide with the traveling direction (Z direction) of the train. The objects OB2, OB3, OB4, OB5, OB6, OB7, and OB8 are objects that are abstractions of three-dimensional objects existing in the game space. The objects OB2 and OB5 are spheres, the objects OB3, OB6, OB7 and OB8 are cylinders, and the object OB4 is a quadrangular pyramid.

  7, 8 and 9 show game images (objects) displayed on the frames DM, DR, and DL (displays 62, 63R, 63L) according to the virtual camera set in the virtual 3D space shown in FIG. It is a figure which shows an example. Note that FIG. 7 shows an objective viewpoint, FIG. 8 shows a subjective viewpoint, and FIG. 9 shows a view of a virtual 3D space viewed from above.

  As shown in FIGS. 7 and 9, the virtual camera is set to the camera position CP. The interfaces BF1, BF2, BF3, and BF4 shown in FIGS. 7 and 9 represent the boundaries of the frames DM, DR, and DL. Further, the range of the boundary surface BF1 and the boundary BF4 represents the angle of view of the virtual camera.

  In a diagram shown by an objective viewpoint such as FIG. 7, for example, the horizontal direction parallel to the surface of the center frame DM (display 62) is the X coordinate direction, and the vertical direction parallel to the surface of the center frame DM (display 62) May be described as a Y coordinate direction, and a direction perpendicular to the plane of the center frame DM (display 62) (traveling direction of a train) as a Z coordinate direction.

  As shown in FIG. 8, in the frames DM, DR, and DL, objects in the corresponding ranges divided by the boundary surfaces BF1, BF2, BF3, and BF4 are displayed. For example, in the frame DM, an object ob4 corresponding to the front object OB4 and an object ob1 corresponding to the straight line object OB1 are displayed. Similarly, in the frame DR, the objects ob5 and ob6 corresponding to the objects OB5 and OB6 and the objects ob1-5 and 1-6 corresponding to the straight objects OB1-5 and 1-6 are displayed, and in the frame DL, The objects ob2 and ob3 corresponding to the objects OB2 and OB3 and the objects ob1-1 and 1-2 corresponding to the straight line objects OB1-1 and 1-2 are displayed.

  As shown in FIG. 7 and FIG. 9, since the objects OB 7 and 8 are not included in the angle of view of the virtual camera (the range of the boundary surfaces BF1 to BF4), they are not displayed in any of the frames DM, DR, and DL. .

  Next, the case of changing the position of the virtual camera will be described with reference to FIG. 10, FIG. 11 and FIG. FIG. 10 shows an objective viewpoint, FIG. 11 shows a subjective viewpoint, and FIG. 12 shows a view of a virtual 3D space viewed from above.

  Here, as shown in FIGS. 10 and 12, the camera position CP of the virtual camera is closer to the frames DM, DR, and DL than in FIGS. 7 and 9. Thereby, the angle of view (the range of the boundary surfaces BF2 to BF3) of the center frame DM (display 62) becomes wide. As a result, it is possible to display a game image capable of giving an impression of increased speed.

  As shown in FIGS. 10 to 12, the angle of view of the virtual camera (the range of the boundary surfaces BF1 to BF4) is expanded by bringing the camera position CP closer to the frames DM, DR, and DL. For this reason, objects OB7 and OB8 which were not in the display range at the camera position CP shown in FIGS. That is, image processing for generating a 3DCG image of the expanded range is increased by the spread of the angle of view.

  In the game device 20 of the present embodiment, when the 3DCG image is generated by widening the angle of view in order to increase the sense of speed, data (object) of the virtual three-dimensional space to be subjected to image processing is not increased.

  First, a method of not increasing data (object) in the virtual three-dimensional space to be subjected to image processing by bringing the camera position CP close to the frames DM, DR, and DL so as not to change the entire angle of view of the virtual camera. explain.

  FIG. 13 shows an objective viewpoint, and FIGS. 14 and 15 show virtual 3D space viewed from above. FIG. 15 shows the angle of view before and after moving the camera position CP and the display target range (object) of the virtual 3D space.

  The camera position CP shown in FIG. 13 and FIG. 14 indicates the position after the movement in which the camera position CP is brought close to the frames DM, DR, and DL. Further, boundary surfaces VBF1 to VBF4 shown in FIG. 13 and FIG. 14 indicate boundaries showing a range of the same angle of view as that before movement at the camera position CP after movement.

  As shown in FIGS. 13 and 14, when the camera position CP is brought close to the frames DM, DR, and DL and the entire angle of view is not changed, a game image in which the angle of view is expanded is displayed in the center frame DM. Ru. Therefore, the player can be made to feel as if the feeling of speed has increased.

  On the other hand, by not changing the entire angle of view, the frames DR and DL arranged on the left and right are divided in the middle by the boundary surfaces VBF 1 and 4 respectively. That is, an object existing in the virtual 3D space is perspective-projected to the range of the frames VDR and VDL near the center of the frames DR and DL, and objects outside the range of the frames VDR and VDL are not displayed. For this reason, the data (object) of the virtual three-dimensional space to be subjected to the image processing is not increased.

  In this case, in order to display the game image on the entire frames DR and DL (displays 63R and 63L), the game image in the range of the frames VDR and VDL is stretched and displayed so as to fit the screen size of the frames DR and DL.

  FIG. 16 shows an example of a game image in which an object perspective-projected and transformed into a frame VDL is stretched according to the frame DL. The straight line objects ob1-1 and ob1-2 and the object ob2 shown in FIG. 16 are, as shown in FIGS. 10 to 12, the angle of view (the angle of view including the whole of the frames DR and DL) in accordance with the arrangement of the frames DR and DL. Indicates the object position displayed when setting).

  As shown in FIG. 14, when the display target range (object) of the virtual 3D space is perspective-projected and converted based on the camera position CP after movement and the frames DM and VDL, the game image between the frames DM and VDL is displayed. Object continuity is ensured. However, when the object subjected to perspective projection conversion to the frame VDL is stretched according to the frame DL, as shown in FIG. 16, the object vob2 (spherical object) corresponding to the object ob2 is distorted horizontally, and the straight object vob1 Since the inclination of -1 and vob1-2 changes and the position shifts, a phenomenon occurs in which the continuity with the straight line object displayed in the frame DM is broken. Similarly, the same phenomenon occurs in the frame DR.

  That is, when the game image whose angle of view has been changed during the game is displayed by the above-described image processing, objects whose continuity is broken are displayed in the game image on the displays 63R and 63L that display the periphery of the end of the game image. Is displayed on. In particular, for straight objects such as tracks, roads, and electric wires, straight lines are not maintained between the displays, and the player may feel discomfort.

  The game device 20 according to the present embodiment can perform image processing for maintaining the continuity of the object so as not to cause the discomfort when moving the camera position CP as described above. That is, when moving the camera position CP, the camera position CP is rotated by changing the angle of the frames DR and DL (displays 63R and 63L) for displaying the periphery of the end in the entire game image. The relationship between the positions of DR and DL (frames VDR and VDL) (projection plane) and the position of the object are matched before and after movement of the camera position CP and then perspective projection conversion is performed, and then the frame is performed as described above Stretch according to DR and DL. In this way, the continuity of the object is maintained in the game image after being stretched according to the frames DR and DL.

  Hereinafter, the image processing for maintaining the continuity of the object described above will be described.

  FIG. 17 shows an objective viewpoint, and FIGS. 18 and 19 show virtual 3D space viewed from above. FIG. 19 shows the angle of view before and after moving the camera position CP and the display target range (object) of the virtual 3D space.

  The camera position CP shown in FIG. 17 and FIG. 18 indicates the position after the movement in which the camera position CP is brought close to the frames DM, DR, and DL. Further, boundary surfaces VBF1 to VBF4 shown in FIGS. 17 and 18 indicate boundaries showing the same range of angle of view as that before movement at the camera position CP after movement.

  As shown in FIGS. 17 and 18, when the camera position CP is brought close to the frames DM, DR, and DL and the entire angle of view is not changed, a game image in which the angle of view is expanded is displayed in the center frame DM. Ru. Therefore, the player can be made to feel as if the feeling of speed has increased.

  On the other hand, with regard to the frames DR and DL arranged on the left and right, the other frame side (rotation side frame side) side is rotated with the frame side in the Y-axis direction adjacent to the frame DM on the center side as the rotation axis. For example, the frame DR is rotated so that the distance between the camera position CP after movement and the frame DR matches the distance between the camera position CP before movement and the frame side not adjacent to the frame DM of the frame DR. . That is, the positional relationship (distance) between the camera position CP and the rotation side frame side of the frame DR is made the same. Similarly, with regard to the frame DL, the other frame side (rotation side frame side) side is rotated with the frame side in the Y-axis direction adjacent to the frame DM on the center side as the rotation axis. In FIGS. 17 to 19, the rotated frames DR and DL are represented by frames VDR and VDL (virtual displays), respectively.

  An object existing in the virtual 3D space is perspective-projected and converted with respect to the range of the frames VDR and VDL set by rotating the frames DR and DL. In this case, objects outside the range of the frames VDR and VDL are not to be displayed, and therefore, data (objects) in the virtual three-dimensional space to be subjected to image processing are not increased. Then, in order to display the game image on the entire frames DR and DL (displays 63R and 63L), the game image projected on the frames VDR and VDL is stretched and displayed so as to fit the screen size of the frames DR and DL.

  FIG. 20 shows an example of a game image in which an object perspective-projected and transformed into a frame VDL obtained by rotating the frame DL is stretched to fit the frame DL. The straight line objects ob1-1 and ob1-2 and the object ob2 shown in FIG. 20 are, as shown in FIGS. 10 to 12, the angle of view (the angle of view including the whole of the frames DR and DL) in accordance with the arrangement of the frames DR and DL. Indicates the object position displayed when setting).

  As shown in FIG. 20, the straight line objects vob1-1 and vob1-2 are displayed in a state in which the continuity with the straight line object displayed in the frame DM is maintained. Similarly, continuity with the straight line object is maintained in the frame DR.

  That is, as described above, since the perspective projection conversion is performed with the same positional relationship (distance) between the camera position CP and the rotation side frame sides of the frames DR and DL, the game image projected on the frames VDR and VDL It is possible to maintain the positional relationship of objects in the game image stretched to fit the screen size of the frames DR and DL.

21 and 22 are diagrams showing the relationship between the camera position CP before and after rotating the frames DR and DL, the position of the frames DR and DL (frames VDR and VDL) (projection plane), and the position of the object.
As shown in FIG. 21, when the frames DR and DL are not rotated, moving the camera position CP changes the positional relationship between the camera position CP, the frames DR and DL, and the object. For example, in FIG. 21, the camera position CP is moved (closer to the frame DM) where the distance between the position of the rotation side frame side of the frame DL before the movement of the camera position CP and OB1-1 is the distance D1. The distance between the position of the rotation side frame side of the frame DL and OB1-1 is a distance VD1 longer than the distance D1. Therefore, as a result of stretching the game image generated by perspective projection conversion based on the distance VD1 according to the frame DL, for example, the inclination of the straight object changes.

  On the other hand, as shown in FIG. 22, as the camera position CP is moved, the frames DR, DL are rotated according to the moved camera position CP to set the frames VDR, VDL, whereby the camera position CP, The positional relationship between the frames VDR and VDL and objects is invariable. That is, in FIG. 22, the distance D1 between the rotation side frame side of the frame DL and the OB1-1 before the movement of the camera position CP becomes equal to the distance VD1 between the position of the frame VDL and the OB1-1. Further, the distances to the positions of the rotation side frame side of the camera position CP and the frame DL and the distances to the positions of the camera position CP and the frame VDL are the same. Therefore, as a result of stretching the game image generated by perspective projection conversion to the frame VDL based on the distance VD1 according to the original frame DL, the left side on which the object of the frame VDL is perspectively projected is stretched to the rotation side frame side of the frame DL Therefore, for example, the inclination of the straight line object does not change. That is, the continuity of the object can be maintained before and after the movement of the camera position CP.

  Thereby, even if a game image whose angle of view has been changed is displayed during the game by the above-described image processing, continuity of objects is maintained even on the displays 63R and 63L that display the periphery of the end of the game image. , The player does not feel uncomfortable.

  Next, an operation of display control of a game image at the time of game execution by the game device 20 according to the present embodiment will be described. FIG. 23 is a flowchart showing an operation of display control of a game image in the present embodiment.

  When the game device 20 starts the game based on the game program 92a, the game device 20 executes a game video display process by the game video processing program 92b.

  The control unit 90 sets an object and a virtual camera in a virtual three-dimensional space to be displayed on the displays 62, 63R, 63L during game execution (step A1). Hereinafter, the control unit 90 generates a game screen for causing the train to travel in the virtual 3D space in response to the player's operation on the mask controller 72.

  First, the control unit 90 inputs speed data that changes in response to the operation of the mask controller 72 (step A2), and the virtual camera position and the virtual display (frame DM, as described above) according to the current train speed indicated by the speed data. Change the distance to DR, DL) (step A3). That is, as the speed of the train increases, a game image with a sense of speed is generated.

  The control unit 90 sets the angle of view according to the positions of the virtual camera and the virtual display (step A4). That is, the control unit 90 sets the game space (display target object) to be displayed at the original angle of view at the position where the virtual camera has moved. Here, as described above, the entire angle of view is not changed before and after the change of the position of the virtual camera, and the increase in image processing necessary to generate the game image is not caused.

  The control unit 90 causes the virtual display to rotate as described above according to the position and the angle of view of the display 63R, 63L (frames DR, DL) displayed near the end of the game image (frame VDR) , Setting of VDL) (step A5).

  The control unit 90 projects the object on the displays 62, 63R, 63L (frames DM, VDR, VDL) by perspective projection conversion based on the object data included in the angle of view according to the position of the virtual camera and the virtual display To generate game images. Even if the entire angle of view is not changed, a game image in which the angle of view is expanded is generated for the display 62 disposed at the center. In addition, with respect to the displays 63R and 63L arranged on the left and right of the display 62, a game image is generated in which the image perspectively projected on the frames VDR and VDL is stretched according to the displays 63R and 63L (frames DR and DL). The control unit 90 displays the game image corresponding to each of the displays 62, 63R, 63L (step A7).

  While the game is being executed (Step A8, No), the control unit 90 continues to execute the above-described image processing (Steps A2 to A7). That is, according to the speed of the train traveling in the game space, it is possible to display the 3DCG image with an increased sense of speed on the displays 62, 63R, 63L.

  When the game is ended (Yes in step A8), the control unit 90 ends the game image display process.

  Thus, in the game apparatus 20 according to the present embodiment, a game image with a wide angle of view is displayed on the central display 62 in order to increase the sense of speed, while the entire angle of view is changed before and after the position of the virtual camera is changed. By making the same, it is not necessary to cause increase of data of the virtual three-dimensional space to be displayed, and complicated image processing in accordance with the change of the position of the virtual camera can be unnecessary.

  In the above description, the game image (video) representing the view in front of the driver's seat is displayed by the three displays 62, 63R, 63L provided in the game apparatus 20, but the present invention is not limited to three displays. It is also possible to apply to an apparatus for displaying a game image (video) on one or more displays.

  Further, although the present embodiment is directed to the three displays 62, 63R, 63L arranged in the left-right direction, the present invention can also be applied to a system that displays images on a plurality of displays arranged in the vertical direction.

  Further, since the present invention is applicable to image processing for displaying a 3DCG image by combining a plurality of displays, the present invention is not limited to image processing related to game devices, and image processing such as 3D CG animation, flight simulator, drive simulator, etc. Is also applicable.

  In the above description, an image processing apparatus that generates a 3DCG image by so-called real-time rendering that generates a 3DCG image according to the player's operation is described. However, an image processing apparatus that generates a 3DCG image by pre-rendering It is also possible.

  Also, although an example in which the entire game image is displayed on a plurality of displays is described, in a system in which the entire game image is displayed on one display (or projected on a screen), it is preset in the vicinity of the end of the game image. It is also possible to generate and combine an image by the same image processing as the game image displayed on the display 63R, 63L described above for the above range.

  The present invention is not limited to the above embodiment as it is, and in the implementation stage, the constituent elements can be modified and embodied without departing from the scope of the invention. In addition, various inventions can be formed by appropriate combinations of a plurality of constituent elements disclosed in the above embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, components in different embodiments may be combined as appropriate.

  Further, the method described in the embodiment may be, for example, a magnetic disk (flexible disk, hard disk, etc.), an optical disk (CD-ROM, DVD, MO, Blu-ray) as a program (software means) that can be executed by a computer. It can be stored in a recording medium such as a registered trademark), a semiconductor memory (ROM, RAM, flash memory, etc.), and can be distributed by transmission through a communication medium. The program stored on the medium side includes a setting program for configuring in a computer software means (not only an execution program but also a table and a data structure) to be executed by the computer. A computer for realizing the present apparatus reads a program recorded in a recording medium, and sometimes constructs a software means by a setting program, and executes the above-mentioned processing by controlling the operation by this software means. The recording medium referred to in the present specification is not limited to the distribution medium, but includes a storage medium such as a magnetic disk or a semiconductor memory provided in an apparatus connected to the inside of a computer or via a network.

  20 game device 90 control unit 90a game processing unit 90a1 game video display processing unit 90a2 operation processing unit 90b input control unit 92 storage unit 92a game program 92b game video Processing program, 92c ... game data, 62, 63R, 63L ... display.

Claims (5)

A plurality of displays for displaying the entire image divided into corresponding ranges;
Setting means for setting the position of the virtual camera in the virtual three-dimensional space;
An image generation unit configured to generate an image of the virtual three-dimensional space viewed from the virtual camera by projecting an object included in an angle of view of the virtual camera on a perspective projection plane corresponding to each of the plurality of displays;
Changing means for dynamically changing the position of the virtual camera;
View angle setting means for setting the entire view angle after the position of the virtual camera has been changed to the same as before change;
Image processing for performing image processing different from the image corresponding to the other second display on the image generated corresponding to the first display displaying the vicinity of the end of the entire image among the plurality of displays An image processing apparatus comprising:   The image processing apparatus according to claim 1, wherein the image processing unit performs image processing for stretching an image generated corresponding to the first display.   The image generation means changes the position of the perspective projection plane corresponding to the first display in response to the change of the position of the virtual camera to generate an image to be displayed on the first display. The image processing apparatus according to claim 1.   The image generation unit may set a perspective projection plane corresponding to the first display to a positional relationship between a position corresponding to an end of the range of the angle of view and a position after movement of the virtual camera, and before movement of the virtual camera. The image processing apparatus according to claim 3, wherein the image processing apparatus is rotated such that the position and the position corresponding to the end of the perspective projection plane coincide with each other. A computer having a plurality of displays for dividing and displaying the entire image for each corresponding range;
Setting means for setting the position of the virtual camera in the virtual three-dimensional space;
An image generation unit configured to generate an image of the virtual three-dimensional space viewed from the virtual camera by projecting an object included in an angle of view of the virtual camera on a perspective projection plane corresponding to each of the plurality of displays;
Changing means for dynamically changing the position of the virtual camera;
View angle setting means for setting the entire view angle after the position of the virtual camera has been changed to the same as before change;
Image processing means for performing image processing different from the image corresponding to the other second display on the image generated corresponding to the first display displaying the vicinity of the end of the entire image among the plurality of displays Image processing program to function as.