JP7051374B2 - Image processing device, image processing program - Google Patents

Description

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

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

In addition, the conventional game device not only displays a 3DCG image that changes 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 as to obtain a more sense of speed. Some generate 3DCG images (eg, Patent Document 1). In the game device described in Patent Document 1, the angle of the camera and the position of the camera are moved to widen the angle of view so that an image with an increased sense of speed can be obtained.

Japanese Unexamined Patent Publication No. 2006-326331

As described above, in the prior art, image processing that changes the sense of speed by adjusting the angle of view is performed. However, if the angle of view is widened to increase the sense of speed, the range of the virtual 3D space to be displayed expands, and data in the virtual 3D space is required to display the 3DCG image in the expanded range. Become. Further, the image processing for generating a 3DCG image for the expanded range increases, and the processing becomes complicated when the range of the virtual three-dimensional space to be displayed changes according to the change in the angle of view. In the conventional image processing, it is not considered that the data in the virtual three-dimensional space in the expanded range increases by widening the angle of view, and the load of the image processing increases.

The present invention has been made in consideration of the above-mentioned circumstances, and an object thereof is to be able to generate a 3DCG image with an increased sense of speed without increasing the data in the virtual three-dimensional space to be image-processed. The purpose is to provide various image processing devices and image processing programs.

In order to solve the above problems, the image processing apparatus of the present invention has a first display for displaying a range including the center of the entire image, which displays the entire image separately for a corresponding range, and the first display. At least one second display that displays an image near the end of the entire image continuous with the image displayed on one display, and a changing means for changing the position of the virtual camera set in the virtual three-dimensional space. An image of the virtual three-dimensional space viewed from the virtual camera, and an object included in the angle of view of the virtual camera are viewed through a first perspective projection surface corresponding to the first display and a second perspective corresponding to the second display . An image generation means generated by projecting onto each of the projection planes and a first image generated by projecting onto the first perspective projection plane are displayed on the first display and projected onto the second perspective projection plane. It has an image processing means for displaying a second image obtained by stretching the generated image from the first image toward the end of the entire image on the second display .

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

The external perspective view of the housing 50 of the game apparatus 20 in this embodiment. The external view which shows the appearance of the operation part housed in the housing 50 of the game apparatus 20 in this embodiment. The perspective view which shows the appearance of the driver's cab 60 provided in the operation part of the game apparatus 20 in this embodiment. The block diagram which shows the functional structure of the game apparatus 20 in this embodiment. The figure which shows the display example of the display 62, 63R, 63L, and the touch panel 77 of the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The figure for demonstrating the display control of the game image by the game apparatus 20 in this embodiment. The flowchart which shows the operation of the display control of a game image in this embodiment.

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

In the embodiment, it is assumed that the image processing device is realized by the game device. The image processing device of the present invention is not limited to the game device, but an image (3DCG) showing a state in which a camera (viewpoint) is virtually set in a virtual three-dimensional space and the virtual three-dimensional space is viewed from this camera. It may be realized by another device that generates (computer graphics) images.

1, FIG. 2, and FIG. 3 are views showing the appearance configuration of the game device 20 in the present embodiment. The game device 20 provides, for example, a driving simulation game, and controls a train (object) traveling on a railroad track in a virtual three-dimensional space according to a player's operation. The game device 20 generates a 3DCG image showing the scenery seen from the driver's cab according to the running of the train, and displays it on the display.

FIG. 1 is an external perspective view of the housing 50 of the game device 20, FIG. 2 is an external view showing the appearance of an operation unit housed in the housing 50 of the game device 20, and FIG. 3 is an operation unit of the game device 20. A perspective view showing the appearance of the driver's cab 60 provided in the above is shown.

As shown in FIG. 1, the housing 50 of the game apparatus 20 in the present embodiment has a substantially box shape, and a part of the front surface is formed by side plates 52A and 52B, the right side surface is formed by side plates 51R, and the left side surface is formed by side plates 51L. Covering. A side plate is not provided on, for example, the right side of the front surface of the housing 50, and an entrance / exit 53 for a player to enter and exit the inside of the housing 50 is formed. Each of the side plates 52A, 52B, side plates 51R, and side plates 51L is provided with transparent windows 52Aa, 52Ba, 51Ra formed of transparent members such as glass and acrylic plates. As a result, even from the outside of the housing 50, the state of the player operating the driver's cab 60 inside the housing 50, the image displayed on the display, and the like can be visually recognized.

Further, a card reader 54 is provided in the vicinity of the doorway 53, for example, in the side plate 52B. The card reader 54 is provided, for example, at a position about the waist height 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) that stores card-specific data (card ID) by non-contact proximity wireless communication. The player can read the card ID recorded on the game card by, for example, bringing the game card close to (holding) the game card over the card reader 54 before entering the inside of the housing 50. Further, an LED panel 55 is provided on the upper part of the front surface of the housing 50. On the LED panel 55, for example, a game title, a game execution state, and the like are displayed.

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

Inside the housing 50, for example, a plurality of lights (lights 55a1, 55a2, ..., 55am shown in FIG. 4) capable of illuminating different colors at a plurality of places are attached. In addition to being used for normal lighting, the plurality of lights are used for directing by turning on / blinking, for example, before the start of a game.

As shown in FIG. 3, the operation surface 70 of the cab 60 is provided with a mass controller (master controller) 72, a brake lever 73, a coin slot (not shown), and the like.

The mass control 72 is operated by the player when the driving simulation game is executed, and is configured to imitate a master controller mounted on an actual train. The acceleration and deceleration (braking) of the train can be controlled by one mascon 72. The brake lever 73 is provided to imitate an actual train. Since the brake lever 73 can also be operated for braking the train by the mascon 72, it is possible to execute a driving simulation without operating the brake lever 73, but the brake lever 73 can be used for braking or suddenly. It can be used to control brakes and special functions of the game (such as switching display contents).

A touch panel 77 is provided in the center of the upper front portion of the driver's cab 60. The touch panel 77 displays various information indicating the state of the train, such as a pressure gauge, a speedometer, other signal states, warning lights, indoor air conditioning, destinations, vehicle interior guidance, buttons and switches, etc., when the driving simulation is executed. do. The touch panel 77 can detect a touch operation by the player. On the touch panel 77, for example, a different image can be displayed for each train according to the train traveling on the route targeted for the game selected by the player.

Further, speakers 78R and 78L are provided on the left and right sides of the upper front portion of the driver's cab 60, respectively. A seat 56 (shown in FIG. 1) for a player to sit on is provided on the front surface of the driver's cab 60 (inside the housing 50 of the side plate 52B). On the inner side of the housing 50 of the side plate 52B, for example, two speakers (speakers 78BL and 78BR shown in FIG. 4) are provided at left and right positions near the head when the player sits on the seat 56. The game device 20 can output the same sound effect as when actually traveling on the train by the speakers provided in front of and behind the player, respectively. At the bottom of the driver's cab 60, a pedal 79 operated by the player with his / her 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 device 20 has 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, DSP), a memory, and the like. The control unit 90 controls each unit by executing the basic program (OS (Operating System)) stored in the storage unit 92 and various application programs by the processor. By executing the game program 92a stored in the storage unit 92, the control unit 90 realizes various functions for executing a game controlled in response to an input operation to the operation lever of the mascon 72.

The functions realized by the control unit 90 include a game processing unit 90a (game video display processing unit 90a1 and 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 the functions of the game video display processing unit 90a1 and the operation processing unit 90a2.

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

The operation processing unit 90a2 accelerates and decelerates (brakes) according to the input data based on the input data input through the input control unit 90b and corresponding to the operation of the pedal sensor 79a provided on the mass controller 72 and the pedal 79. , Generate each speed data.

The input control unit 90b controls data input from the pedal sensor 79a provided on the mass controller 72a and the pedal 79 in response to the player's operation input through the input interface 97.

The storage unit 92 stores programs and data for controlling the game executed in the game device 20. In addition to the basic program, the program stored in the storage unit 92 includes a game program 92a for executing a game on the game device 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 the scenery seen from the driver's cab 60 according to the running of the train, and executes the game video display processing 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 speed of the train increases, the position of the virtual camera (viewpoint) set in the virtual three-dimensional space (distance between the displays 62, 63R, 63L and the camera) is changed to widen the angle of view. Generates an image that feels more speedy. In the present embodiment, an image is generated without increasing the data in the virtual three-dimensional space in the expanded range by widening the angle of view.

Further, the game data 92c is stored in the storage unit 92. The game data 92c includes object data that defines a virtual three-dimensional space (object space) that realizes a driving simulation executed by the game device 20.

Under the control of the control unit 90, the input interface 97 controls the input of the sensor data corresponding to the operation of the operation lever of the mascon 72a and the sensor data from the pedal sensor 79a corresponding to the operation of the pedal 79.

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 77a and a touch pad 77b.

The sound controller 95 controls the audio output from the speakers 78L, 78R, 78BL, 78BR, and the headphone terminal 57 under the control of the control unit 90. When the headphone plug is attached to the headphone terminal 57, the sound controller 95 stops the sound 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 on, for example, a control panel for the administrator 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 a player who plays as a conductor, for example, when a driving simulation is executed by two people (two-person mode).

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

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

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

Hereinafter, for the sake of simplicity, the object existing in the virtual 3D space is represented by a simple figure, and the display control of the game image by the game device 20 in the present embodiment will be described.

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

7, 8 and 9 show the game images (objects) displayed in the frames DM, DR, 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 the virtual 3D space from a viewpoint from above.

As shown in FIGS. 7 and 9, it is assumed that the virtual camera is set to the camera position CP. The boundary surfaces 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 surface BF4 represents the angle of view of the virtual camera.

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

As shown in FIG. 8, in the frames DM, DR, and DL, objects in a range corresponding to each of the boundary surfaces BF1, BF2, BF3, and BF4 are displayed. For example, in the frame DM, the object ob4 corresponding to the front object OB4 and the object ob1 corresponding to the straight line object OB1 are displayed. Similarly, the objects ob5 and ob6 corresponding to the objects OB5 and OB6 and the objects ob1-5 and 1-6 corresponding to the straight line objects OB1-5 and 1-6 are displayed in the frame DR, and the frame DL displays the objects ob1-5 and 1-6. 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 FIGS. 7 and 9, since the objects OB7 and 8 are not included in the angle of view (range of boundary surfaces BF1 to BF4) of the virtual camera, 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 FIGS. 10, 11 and 11. FIG. 10 shows an objective viewpoint, FIG. 11 shows a subjective viewpoint, and FIG. 12 shows a view of a virtual 3D space from a viewpoint 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. As a result, the angle of view (range of boundary surfaces BF2 to BF3) of the central frame DM (display 62) is widened. This makes it possible to display a game image that can give an impression of increased speed.

As shown in FIGS. 10 to 12, the angle of view of the virtual camera (range of boundary surfaces BF1 to BF4) is widened by moving the camera position CP closer to the frames DM, DR, and DL. Therefore, the objects OB7 and OB8 that were not in the display range in the camera position CP shown in FIGS. 7 to 9 are drawn targets. That is, the widening of the angle of view increases the image processing for generating a 3DCG image for the expanded range.

In the game device 20 of the present embodiment, when the angle of view is widened to generate a 3DCG image in order to increase the sense of speed, the data (object) in the virtual three-dimensional space to be image-processed is not increased.

First, about a method that does not increase the data (object) in the virtual 3D space that is the target of image processing by moving the camera position CP closer to the frames DM, DR, DL so as not to change the overall angle of view of the virtual camera. explain.

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

The camera position CP shown in FIGS. 13 and 14 indicates the position after the camera position CP is moved closer to the frames DM, DR, and DL. Further, the boundary planes VBF1 to VBF4 shown in FIGS. 13 and 14 indicate a boundary showing the same angle of view range as before the movement in the camera position CP after the 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 overall angle of view is not changed, the game image with the widened angle of view is displayed in the center frame DM. To. Therefore, the player can feel that the sense of speed has increased.

On the other hand, by not changing the overall angle of view, the frames DR and DL arranged on the left and right are classified in the middle by the boundary surfaces VBF1 and 4, respectively. That is, the objects existing in the virtual 3D space are perspectively projected and converted with respect to the range of the frames VDC and VLL near the center of the frames DR and DL, and the objects outside the range of the frames VDC and VLDL are excluded from the display target. Therefore, the data (object) in the virtual three-dimensional space that is the target of image processing does not increase.

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

FIG. 16 shows an example of a game image in which an object that has undergone perspective projection conversion into a frame DL is stretched according to the frame DL. As shown in FIGS. 10 to 12, the linear objects ob1-1 and ob1-2 and the object ob2 shown in FIG. 16 have an angle of view (angle of view including the entire frame DR and DL) according to the arrangement of the frames DR and DL. ) Is set to indicate the object position displayed.

As shown in FIG. 14, when the display target range (object) in the virtual 3D space is perspectively projected and converted based on the camera position CP after movement and the frames DM and VLD, the game image between the frames DM and VLDL is displayed. Object continuity is ensured. However, when the object transformed into the perspective projection into the frame DL is stretched to fit the frame DL, the object vob2 (spherical object) corresponding to the object ob2 is laterally distorted and the straight line object vob1 is distorted laterally, as shown in FIG. Since the inclination of -1, 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 a game image whose angle of view is changed is displayed during the game by the above-mentioned image processing, an object whose continuity is broken is displayed in the game image on the displays 63R and 63L displaying the periphery of the edge of the game image. Is displayed in. In particular, for straight line objects such as railroad tracks, roads, and electric wires, the straight lines are not maintained between the displays, and the player feels uncomfortable.

In the game device 20 of the present embodiment, it is possible to perform image processing for maintaining the continuity of the objects so as not to cause a sense of discomfort when the camera position CP is moved as described above. That is, when the camera position CP is moved, the angles of the frames DR and DL (displays 63R and 63L) that display the periphery of the edge in the entire game image are changed, and the camera position CP and the rotated virtual frame are changed. After matching the relationship between the positions of the DR and DL (frame VDC, VLL) (projection plane) and the positions of the objects before and after the movement of the camera position CP, perspective projection conversion is performed, and then, as described above, the frame. Stretch according to DR and DL. As a result, the continuity of the objects is maintained in the game image after being stretched according to the frames DR and DL.

Hereinafter, image processing for maintaining the continuity of the above-mentioned objects will be described.

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

The camera position CP shown in FIGS. 17 and 18 indicates the position after the camera position CP is moved closer to the frames DM, DR, and DL. Further, the boundary planes VBF1 to VBF4 shown in FIGS. 17 and 18 show a boundary showing the same angle of view range as before the movement in the camera position CP after the 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 overall angle of view is not changed, the game image with the widened angle of view is displayed in the center frame DM. To. Therefore, the player can feel that the sense of speed has increased.

On the other hand, for 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, for the frame DR, the distance between the camera position CP after movement and the frame DR is rotated so as to match the distance between the camera position CP before movement and the frame DM of the frame DR and the frame side not adjacent to 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, for 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 the frames VDC and VLL (virtual display), respectively.

By rotating the frames DR and DL, the objects existing in the virtual 3D space are subjected to perspective projection conversion with respect to the range of the frames VDC and VLL set. In this case, since the objects outside the range of the frame VDC and VLDL are not displayed, the data (object) in the virtual three-dimensional space to be image processed is not increased. Then, in order to display the game image on the entire frame DR, DL (displays 63R, 63L), the game image projected on the frame VDC, VDC is enlarged and displayed so as to fit the screen size of the frame DR, DL.

FIG. 20 shows an example of a game image in which an object that has undergone perspective projection conversion into a frame VLL obtained by rotating a frame DL is stretched according to the frame DL. As shown in FIGS. 10 to 12, the linear objects ob1-1 and ob1-2 and the object ob2 shown in FIG. 20 have an angle of view (angle of view including the entire frame DR and DL) according to the arrangement of the frames DR and DL. ) Is set to indicate the object position displayed.

As shown in FIG. 20, the straight line objects vob1-1 and vob1-2 are displayed in a state where continuity with the straight line object displayed in the frame DM is maintained. Similarly, the 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 side of the frames DR and DL, the game image projected on the frames VDC and VDC is performed. In the game image stretched to fit the screen size of the frames DR and DL, the positional relationship of the objects can be maintained.

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

On the other hand, as shown in FIG. 22, as the camera position CP is moved, the frame DR and DL are rotated according to the moved camera position CP to set the frame VDC and VDC, thereby setting the camera position CP. The positional relationship between the frame VDC, VDL, and the object is invariant. That is, in FIG. 22, the distance D1 between the rotation side frame side of the frame DL and OB1-1 before the movement of the camera position CP and the distance VD1 between the position of the frame VLL and OB1-1 are equal. Further, the distance between the camera position CP and the position of the rotation side frame side of the frame DL and the distance between the camera position CP and the position of the frame VDL are also the same. Therefore, as a result of stretching the game image generated by the perspective projection conversion for the frame VLD based on the distance VD1 according to the original frame DL, the left side on which the object of the frame VLDL 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 objects can be maintained before and after the movement of the camera position CP.

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

Next, the operation of the display control of the game image when the game is executed by the game device 20 in the present embodiment will be described. FIG. 23 is a flowchart showing the operation of the display control of the 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 the game video display processing by the game video processing program 92b.

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

First, the control unit 90 inputs speed data that changes according to the operation of the mascon 72 (step A2), and the virtual camera position and the virtual display (the above-mentioned frame DM, 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 in which the sense of speed increases 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 according to the original angle of view at the position where the virtual camera is moved. Here, as described above, the entire angle of view is not changed before and after the position of the virtual camera is changed, so that the image processing required for generating the game image is not increased.

The control unit 90 rotates the virtual display of the displays 63R and 63L (frame DR, DL) displaying the vicinity of the edge of the game image according to the position and angle of view of the virtual camera as described above (frame VDC). , VLD setting) (step A5).

The control unit 90 projects an object onto the displays 62, 63R, 63L (frame DM, VDC, VLL) by perspective projection conversion based on the object data included in the angle of view according to the positions of the virtual camera and the virtual display. By doing so, a game image is generated. Even if the overall angle of view is not changed, a game image with a wider angle of view is generated for the display 62 arranged in the center. Further, for the displays 63R and 63L arranged on the left and right sides of the display 62, a game image obtained by stretching the image perspectively projected onto the frames VDC and VDC according to the displays 63R and 63L (frames DR and DL) is generated. The control unit 90 displays a game image corresponding to each of the displays 62, 63R, and 63L (step A7).

The control unit 90 continuously executes the above-mentioned image processing (steps A2 to A7) while the game is being executed (steps A8, No). That is, the 3DCG image with an increased sense of speed can be displayed on the displays 62, 63R, 63L according to the speed of the train traveling in the game space.

When the game is finished (step A8, Yes), the control unit 90 ends the game video display process.

In this way, in the game device 20 of the present embodiment, the game image having 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 in the above, it is not necessary to increase the data in the virtual three-dimensional space to be displayed, and it is possible to eliminate the need for complicated image processing according to the change in the position of the virtual camera.

In the above description, the game image (video) showing the scenery in front of the driver's seat is displayed by the three displays 62, 63R, 63L provided on the game device 20, but the game image (video) is not limited to the three displays. It can also be applied to a device that displays a game image (video) on one or more displays.

Further, although the target is three displays 62, 63R, 63L arranged in the left-right direction, it can also be applied to a system for displaying an image on a plurality of displays arranged in the up-down direction.

Further, since the present invention can be applied to image processing for displaying a 3DCG image in combination of a plurality of displays, the present invention is not limited to image processing related to a game device, and image processing for 3D CG animation, flight simulator, drive simulator, etc. It is also applicable to.

Further, in the above description, an image processing device that generates a 3DCG image according to the operation of the player, that is, an image processing device that generates a 3DCG image by so-called real-time rendering is described. It is also possible to do.

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

Further, the present invention is not limited to the above embodiment as it is, and at the implementation stage, the components can be modified and embodied within a range that does not deviate from the gist thereof. In addition, various inventions can be formed by an appropriate combination of the plurality of components disclosed in the above-described embodiment. For example, some components may be removed from all the components shown in the embodiments. In addition, components across different embodiments may be combined as appropriate.

Further, the method described in the embodiment is, as a program (software means) that can be executed by a computer, for example, a magnetic disk (flexible disk, hard disk, etc.), an optical disk (CD-ROM, DVD, MO, Blu-ray (CD-ROM, DVD, MO, Blu-ray). It can also be stored in a recording medium such as a registered trademark), a semiconductor memory (ROM, RAM, flash memory, etc.), or transmitted and distributed by a communication medium. The program stored on the medium side also includes a setting program for configuring the software means (including not only the execution program but also the table and the data structure) to be executed by the computer in the computer. A computer that realizes this device reads a program recorded on a recording medium, constructs software means by a setting program in some cases, and executes the above-mentioned processing by controlling the operation by the software means. The recording medium referred to in the present specification is not limited to distribution, and includes storage media such as magnetic disks and semiconductor memories provided in devices connected inside 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 (4)

A first display that displays a range including the center of the entire image, which divides and displays the entire image for each corresponding range, and an end portion of the entire image that is continuous with the image displayed on the first display. With at least one second display displaying images on the near side ,
A means of changing the position of the virtual camera set in the virtual 3D space, and
An image of the virtual three-dimensional space viewed from the virtual camera, and an object included in the angle of view of the virtual camera are projected onto a first perspective projection surface corresponding to the first display and a second perspective projection corresponding to the second display . An image generation means that is generated by projecting onto each of the surfaces ,
The first image generated by projecting onto the first perspective projection surface is displayed on the first display, and the image generated by projecting onto the second perspective projection surface is displayed from the first image to the entire image. An image processing device including an image processing means for displaying a second image stretched in the direction of an end portion on the second display . The image processing apparatus according to claim 1 , wherein the image generation means changes the position of the second perspective projection surface in response to a change in the position of the virtual camera to generate an image to be displayed on the second display. In the image generation means , the distance between the position after the movement of the virtual camera and the position of the second perspective projection surface corresponding to the end of the range of the angle of view is the position before the movement of the virtual camera and the first. The second perspective projection plane is rotated by rotating the side adjacent to the first perspective projection plane as a rotation axis so as to match the distance to the position corresponding to the end of the two perspective projection planes . The image processing apparatus according to claim 2, wherein an object is projected onto a perspective projection surface . A first display that displays a range including the center of the entire image, which divides and displays the entire image for each corresponding range, and an end portion of the entire image that is continuous with the image displayed on the first display. A computer that controls the display of at least one second display that displays a nearby image .
A means of changing the position of the virtual camera set in the virtual 3D space, and
An image of the virtual three-dimensional space viewed from the virtual camera, and an object included in the angle of view of the virtual camera are projected onto a first perspective projection surface corresponding to the first display and a second perspective projection corresponding to the second display. An image generation means that is generated by projecting onto each of the surfaces ,
The first image generated by projecting onto the first perspective projection surface is displayed on the first display, and the image generated by projecting onto the second perspective projection surface is displayed from the first image to the entire image. An image processing program for functioning as an image processing means for displaying a second image stretched in the direction of the end on the second display .

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