JP2007140817A - Image generation device, game machine, image generation method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image generation device or the like allowing optional and easy setting of a position or size of a child screen without excessively increasing a processing burden. <P>SOLUTION: This image generation device generating image data for making a prescribed window be displayed inside an image display area has: storage parts 3031, 3032 storing image data for an object associated with the window; an arrangement determination part 3041 determining arrangement of the object in a virtual three-dimensional space in reference to the image data; and a development part 3044 two-dimensionally developing the virtual three-dimensional space disposed with the object with a prescribed viewpoint as a reference. The arrangement determination part 3041 has a distance keeping means 3042 keeping a relative distance between the viewpoint and the object associated with the window constant. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an image generation technique for realizing a small-screen window display in three-dimensional image generation with a small processing load and a small memory capacity.

  2. Description of the Related Art Conventionally, in the field of gaming machines, there has been a video display device that displays a lottery result in addition to a symbol indicating a lottery result and displays a sub-screen in the displayed video. For example, JP-A-5-345067 discloses a video control means for displaying a game image on a video display device, an information display signal from the game control means, and information based on an information display signal from the outside as a video display as an interrupt image. There has been disclosed a gaming machine that includes an interrupt display means for displaying on a device and is capable of displaying an interrupt image on a child screen (Patent Document 1).

In addition to gaming machines, in the field of game devices, as disclosed in, for example, Japanese Patent Application Laid-Open No. 2000-218043, there is a display unit that displays a large screen and a sub-screen of a part of the large screen. The large screen displays the operation image of the operation target, the sub screen displays the operation image of the pseudo operator, and the real operator impersonates the pseudo operator via the operation means. A game apparatus has been developed that can operate a typical operation object (Patent Document 2, paragraphs 0007 and 0008). The small screen as described in Patent Document 2 masks a large screen and displays an image based on image data generated by another three-dimensional image display device in the masked area.
JP-A-5-345067 (paragraphs 0008, 0113, 0114) JP 2000-218043 A (paragraphs 0007 and 0008)

  By the way, in the field of game devices and gaming machines, it has been required to display a three-dimensional image rich in story, and in such an effect, a sub-screen (window) is displayed in the screen. Patterns are now required. For example, this is the case where the child screen is displayed in such a position that the monitor screen is displayed in the virtual three-dimensional space represented on the parent screen. The child screen in such an effect pattern is displayed in an arbitrary size at an arbitrary position in the virtual three-dimensional space, and it is also necessary to dynamically change the position and size according to the effect. there were. The above prior art can be used for a production pattern using this sub-screen.

  However, in the conventional small screen display technology, it is necessary to have a special hardware specification for displaying the small screen. For example, in Patent Document 1, a configuration for creating an information display signal for displaying a small screen and an interrupt image is required. In the above-mentioned Patent Document 2, it is necessary to separately generate image data for a small screen, mask it on a large screen, and further synthesize both.

  In addition, in an image generation apparatus that provides a so-called 3D image in which a so-called virtual three-dimensional space is developed two-dimensionally, a child screen is separately generated and combined, so the processing load on the processing apparatus increases dramatically and a large amount of memory is consumed. Therefore, it cannot be applied to an image processing apparatus with limited processing capability and memory capacity.

  Therefore, an object of the present invention is to provide an image generation device, a game machine, an image generation method, and a program that can display a small screen without excessively increasing the processing load.

  In order to solve the above problems, an image generation apparatus according to the present invention is an image generation apparatus that generates image data for displaying a predetermined window in an image display area, and includes an object associated with the window. A storage unit for storing image data, an arrangement determination unit for determining the arrangement of the object in the virtual three-dimensional space with reference to the image data, and the virtual three-dimensional space in which the object is arranged based on a predetermined viewpoint The arrangement determining unit includes a distance holding unit that holds a relative distance between the object associated with the window and the viewpoint constant.

  The image generation method of the present invention is an image generation method for generating image data for displaying a predetermined window in an image display area, and refers to image data for an object associated with the window. A step of determining an arrangement of the object in the virtual three-dimensional space, a step of two-dimensionally developing the virtual three-dimensional space in which the object is arranged with reference to a predetermined viewpoint, and an object associated with the window and the viewpoint And a step of keeping the relative distance constant.

  According to the present invention, in order to display a window, that is, a child screen in the image display area, an object for displaying the window in the virtual three-dimensional space is arranged and two-dimensionally developed. At this time, since the distance between the object related to the window and the viewpoint that is the basis for the two-dimensional development is kept constant, the position of the viewpoint can be maintained even if time passes or other objects or the background changes. Even if is changed, the size of the window including the object viewed from the viewpoint does not change. Even if the position or size of the surrounding object or background changes, the size of the window does not change, so it is visually recognized that the window exists independently of the surrounding space on the image display, and another screen is inserted. It is perceived as an illusion. For this reason, the object for displaying the window can be displayed in the virtual three-dimensional space in the same way as handling other objects, so that it can look like a child screen. Sub-screen display can be realized without increasing the number.

  Here, the “window” is an area for displaying a predetermined image in the image display area, and is also called a sub-screen. An image independent of the image displayed in the image display area is displayed on the window, that is, the sub-screen. Since the window is usually displayed as a simulation of the image display of the monitor device, the window has a rectangular outer shape with a predetermined aspect ratio, but is not limited thereto.

  Here, it is preferable to keep the direction from the viewpoint of the object associated with the window constant. According to the present invention, by keeping the direction from the viewpoint constant, the arrangement of the objects associated with the windows is fixed in the image display area. The fixed object placement means that even if the surrounding objects or background changes, the position of the window is fixed and visually recognized. It becomes possible to look like a screen.

  Here, it is preferable that the window is associated with a texture for outline that represents the outline of the window. If the outline texture is observed as an object, the outline of the sub-screen can be clearly shown, so that the sub-screen can be emphasized and displayed.

  Note that the external texture is preferably a similar shape corresponding to the image display area (for example, a square having an aspect ratio of the image display surface of the monitor device), but is not limited thereto. Further, the external texture may be an opaque texture or a translucent texture. Further, the external texture may include a fine stripe pattern imitating a scanning line as a translucent texture.

  Here, the object associated with the window is provided in addition to the outline texture, and the arrangement of the objects is controlled so that the object falls within the range of the viewing angle from the viewpoint to the outline texture. Is preferred. According to the present invention, the object is recognized as an object displayed in a separate window or a sub-screen because it is observed in an image that is two-dimensionally developed so that the object is in the range of the outline texture indicating the window, Visible as if separated from the world outside the window. By displaying the object so as to overlap the window in this way, it is possible to display a complex child screen image even though only one virtual three-dimensional space is defined.

There may be a plurality of objects to be superimposed on the window.
Further, when the outer texture is an opaque texture, the other objects are arranged in front of the outer texture as viewed from the viewpoint. On the other hand, when the outline texture is a translucent texture, other objects may be arranged behind the outline texture.

  In particular, when a scanning line pattern is applied to the outer texture, the scanning line can be displayed on the entire window by placing the outer texture on the near side, so that it looks more like a child screen. Can do.

  For example, in the present invention, when the display position of the window in the image display area is changed, the arrangement in the virtual three-dimensional space is changed at the same time while keeping the relative distance between the object associated with the window and the viewpoint constant. Is done. According to such processing, since the position of the image display is changed while the size of the window remains as it is, it can be visually recognized as a position change of the child screen. When the outline texture and other objects are compatible with windows, the display contents in the sub-screen can be changed by relocating these multiple objects together while maintaining a constant relative distance. The display position can be changed without any change.

  For example, in the present invention, when the window display size is changed, the size of the object associated with the window is changed at the same magnification as the window display size change magnification. According to such a process, the size observed from the viewpoint changes corresponding to the magnification, so that the size of the window can be changed. At this time, even if there are a plurality of objects corresponding to the window, the size of the sub-screen can be changed with a simple process because each object is enlarged at the same magnification.

  In the present invention, it is preferable that other objects not associated with the window are prohibited from being placed in the field of view from the viewpoint to the window. By processing in this way, when viewed from the viewpoint, objects placed within the window range and objects existing outside the window range are not mixed, so an unnatural image is displayed as a child screen. Can be prevented.

The present invention is also a gaming machine provided with the image generating apparatus of the present invention.
Here, the “gaming machine” is not limited, but includes, for example, a rotary gaming machine (hereinafter referred to as “slot machine”), a pachinko machine (including a first kind pachinko machine and a second kind pachinko machine), and the like.

  The present invention is also a program for causing a computer to execute the image generation method of the present invention. The program of the present invention is a program for causing a computer to execute the image generation method of the present invention. Such a program is stored in a storage medium and distributed. Such storage media include various types of ROM, USB memory with flash memory, USB memory, SD memory, memory stick, memory card, and other physical storage media such as FD, CD-ROM, and DVD-ROM. It also includes a transmission medium such as the Internet capable of transmitting the program.

  According to the present invention, since the distance between the object related to the window and the viewpoint that is a reference for development into the two-dimensional image is kept constant, the window is independent of the surrounding two-dimensional image on the image display. It is visually recognized as if it exists, and it is recognized with an illusion that another screen is inserted. For this reason, the object for displaying the window can be displayed in the virtual three-dimensional space in the same way as handling other objects, so that it can look like a child screen. Sub-screen display can be realized without increasing the number.

Hereinafter, as a preferred embodiment of the present invention, an example in which the image generation apparatus (method) of the present invention is applied to a gaming machine (slot machine) installed in a game hall or the like will be exemplified. The following embodiments are merely examples of application of the present invention, and the present invention is not limited to the embodiments and can be applied with various modifications.
(Definition)
The terms used in this specification are defined as follows.
“Game” refers to a series of operations from the insertion of a medal to the operation of a stop switch before the next medal is inserted.
“Normal game” refers to a “game” executed with an expected value set for a default state.
The “special game” is a “game” that is different from the “normal game” and is advantageous to the player.

“Lottery” refers to a process in which a computer draws a lottery with a predetermined expected value using a random number or the like when a gaming machine reaches a predetermined condition (switch operation state or the like).
“Winning” refers to a case where the result of the “lottery” is a win, in particular, a case where a win is obtained by a computer lottery. In the present embodiment, it is distinguished from “winning” determined mechanically.
“Winning” means that a combination of symbols on the active line indicated by the stopped reels is in a state indicating a specific combination.

The “combination” is to specify the type of winning when the result of the lottery is winning. It is also called “winning role” when the “winning role” or the design is complete.
The “special role” is a role for shifting to “special game”.
The “small role” is a role for paying out to the player the number of medals corresponding to the type of the small role.

“Replay” is a role for giving the right to replay while maintaining the number of medals inserted in the previous game.
The “effective line” indicates the arrangement of the stopped symbols for the sake of convenience, and indicates whether the symbol is a specific “combination” or “losing” depending on the combination of symbols arranged on the effective line. When a plurality of “effective lines” are set, they are collectively referred to as “effective line group”.

(Embodiment)
First, the case configuration will be described.
FIG. 1 is a front view showing an appearance of the slot machine according to the embodiment of the present invention.
As shown in FIG. 1, a front panel 20 is attached to a front surface portion of a housing of the slot machine 10 according to the present embodiment so as to be freely opened and closed. It is a display area in which an effect display device 40 having a display function is provided in the upper part of the front panel 20, and an operation unit is provided in the center.

  An effect display device 40 having a display function is provided in the upper part of the housing. The effect display device 40 is configured to include, for example, a liquid crystal panel, and is configured to be able to display images for various effects and information necessary for the game. The effect display device 40 is provided with one transparent display window 21. The area of the display window 21 is not provided with a liquid crystal for displaying an image, a member constituting the liquid crystal (such as a polarizing plate), or a circuit for controlling the liquid crystal, and transmits light. It is an area that cannot physically display an image.

  Three reels (rotating drums) are arranged in a position inside the housing and visible through the display window 21. From the left side when viewed from the front, the left reel 31L, the middle reel 31C, and the right reel 31R are arranged in this order.

  The reels 31L, 31C and 31R are formed in a ring-shaped hollow structure. The outer periphery of the reel is formed in the width of the reel tape that is affixed to the outer peripheral surface, and a plurality of openings are provided on the outer peripheral surface in accordance with the shape of the pattern printed on the reel tape. The inside of the reel is hollow, and the rotating shaft is supported by a frame extending from the outer peripheral surface.

  Each reel tape on which a winning symbol (a symbol constituting a winning combination) is printed is affixed to the outer peripheral surface of the reel. On each reel tape, for example, 21 symbols are printed at regular intervals. The arrangement of the symbols is different for each reel tape. The design of the reel tape corresponds to the opening provided on the outer peripheral surface of the reel. From the display window 21, the reels 31L, 31C, and 31R are observed through the display window. The size of the display window 21 is such that three consecutive symbols in the vertical direction of the outer peripheral surface of each reel can be seen. Is set. In FIG. 1, a circle shown on the reel group 31 (meaning a group of reels 31L, 31C, and 31R) represents one symbol.

  Stepping motors (not shown) are connected to the respective rotation shafts of the reels 31L, 31C, and 31R. This stepping motor is capable of rotating the reels 31L, 31C and 31R at an arbitrary speed or stopping at an arbitrary angle (position). When each reel rotates, the symbols of the reels 31L, 31C, and 31R are visually recognized as moving up and down in the display window 21.

  A back lamp (not shown) is provided inside the reels 31L, 31C, and 31R. Three back lamps are arranged for each reel, and light is emitted through the openings on the outer peripheral surface of the reel for a total of nine symbols visible from the display window 21 when the reels are stopped.

  A broken line on the display window 21 shown in FIG. 1 indicates an effective line group 22 including effective lines 22a, 22b, and 22c. The effective line group 22 includes a horizontal effective line 22a in the horizontal direction, two effective lines 22b in the upper and lower horizontal directions, and two effective lines 22c in the diagonally downward and leftward directions. ing. The symbols attached to the reels 31L, 31C and 31R are spaced so that all nine symbols visible from the display window 21 are positioned on these effective line groups 22 when the reels 31L, 31C and 31R are stopped. Is arranged in.

  A medal slot 23 is provided at a position corresponding to the lower right side of the effect display device 40 in the center of the casing of the slot machine 10. When medals are inserted from the medal insertion slot 23, one to five lines of the effective lines 22a, 22b and 22c are activated according to the number of inserted medals. That is, the inserted number of medals is collected as a premium. When one medal is inserted, one effective line 22a is effective. When two medals are inserted, three horizontal effective lines 22a and 22b are effective. In total, including two effective lines 22c in the direction, five effective lines 22a to 22c become effective. These controls are performed by a later-described main CPU (central processing unit) 51 (see FIG. 2). For example, when three medals are inserted, if a combination of specific symbols on at least one effective line 22a to 22c is stopped when the reels 31L, 31C, and 31R are stopped, the combination is selected. It will be a prize for the corresponding role.

  Various operation switches operated by the player are provided at the center of the housing. For example, in this embodiment, a start switch 41, a stop switch group 42, and a bet switch group 43 are provided.

  The start switch 41 is a switch, for example, a button operated by the player when starting the rotation of the reels 31L, 31C, and 31R. The stop switch group 42 includes a left stop switch 42L that is operated when stopping the left reel 31L, a middle stop switch 42C that is operated when stopping the middle reel 31C, and a right stop that is operated when stopping the right reel 31R. Switch 42R. These stop switches 42L, 42C, and 42R are juxtaposed as buttons, for example.

  The bet switch group 43 is a switch group for designating the number of bets (the number of bets) when the player inserts a medal in the credit. The bet switch group 43 includes a 1-bet / 2-bet switch 43a and a MAX bet switch (3-bet switch) 43b. It is configured. These bet switches 43a and 43b are also arranged as buttons, for example. When the 1-bet / 2-bet switch 43a is operated, one or two medals are bet (collected as a game amount), and when the MAX bet switch 43b is operated, the maximum 3 bets Medals are bet. That is, the number of bets designated by operating the bet switch group 43 is collected from the number of medals that are credited, and the credit is subtracted by the number of bets.

  Further, a medal payout opening 90 is provided at the center of the lower portion of the housing, and speakers 71 are provided on both sides of the medal payout opening 90. During the game (game), various effects, for example, lighting of a back lamp, image display using the effect display device 40, and output of sound from the speaker 71 are performed. Furthermore, as such an effect, there is a case where a notification effect of the possibility of winning is performed.

An outline of the normal game executed in the slot machine having these configurations will be briefly described.
In the slot machine 10, when a player inserts a medal from the medal insertion slot 23 or operates the bet switch group 43, the effective lines 22a to 22c are activated according to the number of bets.

  When the player who has designated the bet number operates the start switch 41, a winning combination according to the bet number is performed and the reels 31L, 31C and 31R start to rotate. When the player operates the stop switches 42L, 42C, and 42R, the reels 31L, 31C, and 31R stop rotating according to the operated button. At this time, if the lottery result of the combination being performed simultaneously with the operation of the start switch 41 is a winning combination, the combination of symbols arranged on the activated effective line group 22 is a predetermined combination of combinations. The reels are controlled so as to match the combination of symbols, and medals are paid out according to the winning combination.

(System configuration)
Next, a system configuration such as an internal configuration of the slot machine 10 will be described.
FIG. 2 is a block diagram showing a system configuration of the slot machine 10 according to the embodiment of the present invention. Inside the casing of the slot machine 10, a main control board 50, a sub control board 60, a reel board 11, a central display board 12, and a power supply board 13 connected to the main control board 50 are arranged.

(Main control board 50)
The main control board 50 is provided with a main CPU 51, ROM 52, RAM 53, and interface circuit (I / F circuit) 54, which are connected to each other via a bus 55.

  The main CPU 51 reads (fetches), interprets (decodes), and executes instructions constituting the program. The main CPU 51 reads out programs, data, and the like stored in the ROM 52, and controls the entire slot machine 10 based on these.

  The ROM 52 stores software programs and data necessary for lottery processing and other game controls based on operations as shown in the flowchart of FIG. The RAM 53 is used when the main CPU 51 performs various controls, and is configured to be able to temporarily store data and the like.

  The I / F circuit 54 performs timing control and the like when signals are transmitted and received between the main control board 50, the sub control board 60, the reel board 11, the central display board 12, and the power supply board 13. It is like that. However, transmission of signals from the main control board 50 to the sub control board 60 is performed between the main control board 50 and the sub control board 60, but transmission of signals from the sub control board 60 to the main control board 50 is not performed. It is configured not to be performed.

(Sub-control board 60)
The sub control board 60 is provided with a sub CPU 61, ROM 62, RAM 63, image control processor 64, image data ROM 65, video RAM 66, tone generator circuit 67, amplifier 68 and interface circuit (I / F circuit) 69. The sub CPU 61, ROM 62, control RAM 63, image control processor 64, tone generator circuit 67 and I / F circuit 69 are connected to each other via a bus 70. The image data ROM 65 and the video RAM 66 are connected to an image control processor 64, and the amplifier 68 is connected to a sound source circuit 67.

  The sub CPU 61 reads (fetches), interprets (decodes) and executes instructions constituting the program. Then, the sub CPU 61 reads out programs and data stored in the ROM 62, and controls the entire sub control board 60, in particular, controls the effects for the player. Note that there are no restrictions on the processing capability or development language of the sub CPU 61.

  The ROM 62 stores a software program, data, and the like necessary for the processing shown in the flowchart of FIG. 7 to be described later and other effects during the game. The RAM 63 is used when the sub CPU 61 performs various controls, and is configured to be able to temporarily store data and the like.

  The sub CPU 61, ROM 62, and RAM 63 have the same functions as the main CPU 51, ROM 52, and RAM 53 provided on the main control board 50, respectively. The ROM 62 and the RAM 63 may be the same as the ROM 52 and the RAM 53, respectively, but those having a capacity larger than these may be used.

  The above-described effect display device 40 is connected so that frame image data stored in the video RAM 66 can be transferred under the control of the image control processor 64. The image data ROM 65 stores original image data for generating image data such as characters, characters, and backgrounds displayed on the effect display device 40. The video RAM 66 is used when the image control processor 64 generates image data to be displayed on the effect display device 40, and image data generated based on the original image data read from the image data ROM 65 is frame image data. As shown in FIG.

  Furthermore, in this embodiment, a speaker 71, the above-described back lamp, and the like are provided in addition to the effect display device 40 as effect peripheral devices. The speaker 71 is connected to the amplifier 68. These effect peripheral devices output effects during the game (such as a notification effect of the possibility of winning a role), and are connected only to the sub-control board 60 and connected to the main control board 50. Not.

  The I / F circuit 69 performs timing control and the like when receiving a signal from the main control board 50. As described above, the signal is transmitted from the main control board 50 to the sub control board 60, but the signal is not transmitted from the sub control board 60 to the main control board 50. That is, only one-way transmission is possible.

(Reel board 11)
A stepping motor (not shown) for driving the left reel 31L, the middle reel 31C, and the right reel 31R is connected to the reel substrate 11. Each stepping motor is further connected to the rotation shafts of these reels 31L, 31C and 31R. Control signals for controlling the operations of the reels 31L, 31C and 31R are supplied from the main CPU 51 to the reel substrate 11.

(Central display board 12)
The central display substrate 12 is attached to, for example, a central portion on the back side of the front panel 20.
The central display board 12 includes a selector 81, a 1-bet / 2-bet switch 43a, a MAX bet switch (3-bet switch) 43b, a start switch (lever) 41, a left stop switch (button) 42L, and a middle stop switch (button) 42C. A right stop switch (button) 42R, a setting display section 82, and a setting change switch 83 are connected.

  The selector 81 is configured to identify whether or not the medal inserted from the medal insertion slot 23 is a genuine one, and to eliminate an illegal medal. The setting display unit 82 is arranged so as to be visible from the back side of the front panel 20, and displays settings relating to probability and payout (for example, settings 1 to 6). The setting change switch 83 is a switch operated when changing the setting related to the probability and the payout.

(Power supply board 13)
A setting change enabling switch 91, a power switch 92, a hopper device 93, and a power device 94 are connected to the power device board 13.
The setting change enable switch 91 is a switch that is operated when a setting change using the setting change switch 83 is enabled. That is, the setting change using the setting change switch 83 can be performed only when the setting change enable switch 91 is in the ON state. The power switch 92 is a switch for switching the power supply device 94 on / off. The hopper device 93 is a device for storing and paying out medals. Based on an instruction from the main CPU 51 via the power supply device board 13, a predetermined number of medals are stored in the medal payout opening 90 from medals stored in advance. It comes to pay out.

(Function block on main control board)
Next, a functional configuration of the main control board 50 will be described.
FIG. 3 is a functional block diagram showing a functional configuration of the main control board 50.
As shown in FIG. 3, in the present embodiment, for example, the main CPU 51 executes a program recorded in the ROM 52, whereby the following control unit 101, role lottery unit 103, reel control unit 106, winning determination unit 107. The gaming state control unit 108 and the payout control unit 109 are functionally realized. For example, the RAM 53 functions as the following flag information storage unit 105, and the following lottery table 102 data is stored in the ROM 52, for example.

(Role lottery section 103)
The role lottery unit 103 is a functional block for performing lottery of a role (special role, small role, replay, etc.). The combination lottery unit 103 obtains one random number after generating a random number internally for each game, refers to the lottery table 102 stored in the ROM 52, and determines the combination of the combination based on the area to which the acquired random number belongs. The presence / absence of winning and the winning combination are determined.

For example, the role lottery unit 103 performs a lottery when the start switch 41 is operated, and determines whether the “game” is “winning” or “losing” and “winning” when it is “winning”. decide. That is, the role lottery unit 103 generates a random number within a predetermined range (for example, 0 to 65535 in decimal notation) when the start switch 41 is pressed, and the predetermined lot is selected when the predetermined condition is satisfied. Get a random value. In the lottery table 102, a special role winning area, a small role winning area, a replay winning area, a non-winning area (losing) area, and the like are set at a predetermined ratio with respect to random numbers that can be acquired by the role lottery unit 103. ing.
Further, the winning lottery section 103 arranges symbols 31L, 31C, and 31R that represent the winning combination when the reels 31L, 31C, and 31R are “winned” after each of the stop switches 42L, 42C, and 42R is pressed. The stop is controlled so that the winning combination is won. Further, when the lottery result is “losing” (non-winning), stop control is performed so that the symbol arrangement does not represent any combination. In any case, the stop symbol does not change even if the timing of pressing the stop switches 42L, 42C, and 42R is changed.

  The lottery performed by the combination lottery unit 103 may be performed only once per game and may be determined up to the combination, but may be configured to perform a plurality of lotteries.

  In addition to the configuration led by the role lottery unit 103 in which a lottery is performed at the timing of pressing the start switch 41 or the stop switches 42L, 42C, and 42R and the lottery result is determined, the reels can be operated without any special pull-in operation. The group 31 may be stopped, and as a result, the winning determination unit 107 may detect the positions where the reels 31L, 31C, and 31R are stopped, and determine whether there is a winning or a winning combination. In this case, there is no concept of lottery or winning combination, and the combination lottery unit 103 may not exist. Further, depending on the type of game, whether or not the role lottery unit 103 is led, that is, whether to make a lottery or make a winning determination by reel may be switched.

(Control unit 101)
The control unit 101 is a central functional block that controls the operation timing of the combination lottery unit 103, the reel control unit 106 and the winning determination unit 107, which will be described later.
For example, on the condition that the start switch 41 is operated, the control unit 101 causes the combination lottery unit 103 to perform combination lottery, causes the reel control unit 106 to start the rotation of the reel group 31, and the stop switch. The reel control unit 106 is controlled to stop the reel group 31 on the condition that the group 42 has been operated, and further, the winning determination unit 107 is configured to perform a prize determination on the condition that the reel group 31 is stopped. It is.
Note that the operation of the control unit 101 is not limited to these, and governs general control required for the main control board 50.

(Flag information storage unit 105)
The flag information storage unit 105 is configured to be able to store the type of the winning combination and the fact that the flag is turned on when a flag for a certain combination is turned on by the lottery result of the combination lottery unit 103.

(Reel control unit 106)
The reel control unit 106 is a functional block that controls the rotation and stop of the reel group 31 (reels 31L, 31C, and 31R) based on an instruction from the control unit 101.
More specifically, the reel control unit 106 has a game state (for example, a normal game state, a special game state, etc.), a result of a lottery by the combination lottery unit 103, and a stop switch group 42 (stop switches 42L, 42C and 42R). Based on the operated timing or the like, the stop positions of the reels 31L, 31C and 31R are determined, and the driving of the stepping motor is controlled to stop the rotation of the reels 31L, 31C and 31R at the determined positions. It has become.

  For example, if the winning lottery unit 103 results in “losing” and no winning combination is won, each reel is set so that the combination of symbols of any winning combination is not stopped on the activated effective line. The stop positions of 31L, 31C and 31R are determined, and each reel is stopped at the determined position. On the other hand, if a winning combination is selected for a certain role, the symbol combination is determined so that the winning symbol combination is stopped on the active line that is active, and the symbol combination is valid at that time. The stop positions of the reels 31L, 31C, and 31R are determined so as to appear in the effective lines, and each reel is stopped at the determined position.

In particular, when the special combination is “winned”, the stop combinations of the reels 31L, 31C, and 31R are controlled so that the combination of the special combination symbols is stopped on the active line that is enabled (for example, (Within 4 symbols), pull-in control is performed so that the symbols related to the special role are aligned as much as possible. However, even if the special role is “winned”, the combination of symbols of the special role will not stop on the activated active line when “winning” for a small role or replay. Then, stop positions of the reels 31L, 31C and 31R are determined, and stop control is performed.
Such control when stopping the reels 31L, 31C and 31R may be performed using a reel control table.

(Winning determination unit 107)
The winning determination unit 107 is a functional block for determining the final winning state.
The winning determination unit 107 determines whether or not a combination of symbols in the active line group 22 is arranged in any of the active lines that are active, and if there is an in-line combination, It is determined that the winning combination has been won. The lottery of the combination is determined in advance by the combination lottery unit 103. However, when a mechanical reel is used, the reel may not be stopped as scheduled, so the position of the finally stopped reel is detected. Because you have to do it.

  The winning determination unit 107 determines a symbol positioned on the active line by detecting, for example, an angle at the time when the stepping motor is stopped, the number of steps, and the like, and based on this, determines the presence / absence of a winning combination.

  Instead of pre-determining a combination by the combination lottery unit 103 and stopping the reels 31L, 31C and 31R together, the reels are stopped one after another at a retractable position, and finally the actual reels 31L, The positions of 31C and 31R may be detected, and the winning determination unit 107 may determine the combination of symbols and determine the combination.

(Game state control unit 108)
The gaming state control unit 108 is a functional block for controlling the special game from the next game until the predetermined end condition is satisfied when the winning determination unit 107 has won a special role as a result of the determination. It is.

  For example, the game state control unit 108 causes the reel control unit 106 to perform reel control for special games according to the lottery result of the role lottery unit 103 during the special game, or causes the sub control board 60 to perform special game effects. Or let it be done.

(Payout control unit 109)
The payout control unit 109 is a functional block for causing the hopper device 93 to pay out medals according to the winning combination as a result of the determination by the winning determination unit 107.

(Functional block on sub control board)
Next, a functional configuration of the sub control board 60 will be described.
FIG. 4 is a functional block diagram showing a functional configuration of the sub control board 60.
As shown in FIG. 4, in the present embodiment, for example, when the sub CPU 61 executes a program recorded in the ROM 62, the effect pattern selection unit 201 is functionally realized. In addition, the effect control unit 202 is functionally realized by controlling the image control processor 64 by the sub CPU 61 executing the program recorded in the ROM 62.

  The effects implemented by the sub-control board 60 are effects by an image displayed in the image display area around the display window 21 by the effect display device 40 and effects by sound generated from the speaker 71. Unlike the operations on the main control board 50, these effects do not change the direction of the game itself, such as lottery. However, the effects of the image and sound stimulate the player, and the expectation of winning the prize It plays an important role in improving the quality and eliminating monotony.

(Production pattern selection unit 201)
The effect pattern selection unit 201 is a functional block that selects an effect pattern according to the gaming state.
Specifically, the effect pattern selection unit 201 receives a signal from the role lottery unit 103 of the main control board 50 and selects an effect pattern according to the winning combination or the like, or a winning determination unit of the main control board 50 In response to signals from 107 and the special role game control unit 108, an effect pattern corresponding to a winning combination or a gaming state is selected.

  Here, the effect pattern is determined based on the progress of the game such as whether the start switch 41 is pressed, which stop switch 42 is pressed, and which reels 31L, 31C, and 31R are stopped, as a result of lottery. Is selected in accordance with the type of game, such as a normal game or a special game.

(Production control unit 202)
The production control unit 202 is a functional block that controls production based on the production pattern selected by the production pattern selection unit 201.
That is, the production control unit 202 creates 3D image data based on the production pattern, converts it into 2D image data, supplies it to the production display device 40, and displays an image on the image display area. To work.

  In addition, the effect control unit 202 controls the sound source circuit 67 to generate a sound signal based on sound source data stored in a sound source data ROM (not shown). The sound signal is amplified by the amplifier 68 and then output from the speaker 71.

(Detailed function blocks of the production control unit)
Next, the configuration of the effect control unit 202 will be described. The image generation apparatus (method) of the present invention is functionally realized by the effect control unit 202 as follows.

FIG. 5 shows detailed functional blocks of the effect control unit 202.
As shown in FIG. 5, the effect control unit 202 includes, as functional blocks, an image control unit 301, a sound control unit 302, an object data storage unit 3031, a texture data storage unit 3032, an image data generation unit 304, and an image data storage unit 305. , And a display control unit 306. The image data generation unit 304 further includes an arrangement determination unit 3041 and a development unit 3044. The arrangement determining unit 3041 includes a distance holding unit 3042 and preferably a direction holding unit 3043.

  In the above configuration, the image control unit 301 and the sound control unit 302 are functionally realized by the sub CPU 61 executing a program stored in the ROM 62. The object data storage unit 3031 and the texture data storage unit 3032 correspond to the image data ROM 65. The image data storage unit 305 corresponds to the video RAM 66. Each component of the image data generation unit 304 and the display control unit 306 are functionally realized by an image control processor 64 that operates based on the control of the sub CPU 61.

  In the following description, for the sake of convenience, the entire image display area displayed on the effect display device 40 is referred to as a “main window”, and a window (child screen) according to the present invention is referred to as a “subwindow”.

(Image control unit 301)
The image control unit 301 displays, on the image data generation unit 304, whether or not to display a subwindow according to the effect pattern selected by the effect pattern selection unit 201, the arrangement and size of the subwindow in the main window, and the display. Specify the target object, the arrangement of those objects, the type of texture to be developed on the object, the position of the viewpoint (camera) for developing the virtual three-dimensional space into a two-dimensional image, etc. continuously for each frame period. It has come to go. The image control unit 301 determines a story on the image according to the production pattern, and controls its development. The window related to the present invention is executed when a “window effect pattern” is instructed.

(Sound controller 302)
The sound control unit 302 is configured to control the sound source circuit 67 so as to generate and generate a sound signal corresponding to the effect pattern selected by the effect pattern selection unit 201. The sound controlled by the sound control unit 302 is temporally linked with the image control unit 301 so as to have a close relationship with the progress of the image displayed by the control of the image control unit 301. ing.

  In the case of generating a sound synchronized with the image in the sub window in the window effect pattern, the sound control unit 302 generates the sound signal related to the sub window and the sound signal related to the main window.

(Object data storage unit 3031)
The object data storage unit 3031 stores shape definition information of various objects to be displayed in the virtual three-dimensional space. In particular, the object data storage unit 3031 stores an object to be displayed in the main window and an object to be arranged only within a predetermined field of view in order to form an image in the sub window.
The object is defined as a collection of polygons that are minute polygons, for example. In this case, the object data is a collection of polygon data. Each polygon data is defined by a set of relative coordinates of each vertex of the polygon with respect to predetermined reference coordinates. An object is defined by a set of relative coordinates of vertices for all the polygons constituting the object. Then, by performing a known coordinate transformation operation on the relative coordinates of the vertices of the polygon defining the object, it is possible to place the object at an arbitrary coordinate point in the virtual three-dimensional space.

Further, even in a virtual three-dimensional space, a display target that is flat and does not constitute a solid is handled as an object composed of a flat polygon formed by combining one sheet or several sheets.
Further, the object data storage unit 3031 stores information on viewpoints and environment light sources for developing objects and the like arranged in the virtual three-dimensional space into two-dimensional images, background image data, and the like.

(Texture data storage unit 3032)
The texture data storage unit 3032 stores texture data that is mapped (expanded and pasted) on objects arranged in the virtual three-dimensional space.
The texture is mapped on the surface of an object or polygon constituted by one or a plurality of polygons by being developed on the surface of the object or polygon which is only a set of vertex coordinates. The texture data is image data created at a predetermined resolution for representing a pattern, and is, for example, bitmap data. When a texture based on this texture data is pasted as a texture on a predetermined polygon, it is realized by a mapping process in which the texture data is subjected to predetermined image conversion, for example, affine conversion, and the texture is developed into a polygon shape.

  The texture data stored in the texture data storage unit 3032 stores both object data displayed in the main window and object data displayed in the sub-window.

  In addition to the premise that the texture data is mapped to the polygon, the texture data includes sprites, that is, bitmap data for an image that is directly arranged in the developed two-dimensional image as a single picture. . Such a sprite is suitable for displaying an image that does not require a stereoscopic effect, but can also be used as a part of an object constituting the subwindow image of the present invention. The object data storage unit 3031 also includes such sprite data.

(Placement determination unit 3041)
The arrangement determining unit 3041 determines the arrangement of the image display target object in the virtual three-dimensional space.
Specifically, the arrangement determining unit 3041 reads out object data (aggregate of polygon data) of an object specified as a display target according to the effect pattern from the object data storage unit 3031 every frame period, and according to the effect pattern. Next, the arrangement and orientation of the object to be displayed in the virtual three-dimensional space are determined. Then, the arrangement determining unit 3041 performs a coordinate conversion operation for converting the body coordinate system that defines the object data into the world coordinate system that defines the position in the virtual three-dimensional space. Next, the arrangement determining unit 3041 reads the texture data for the object whose arrangement in the virtual three-dimensional space is determined from the texture data storage unit 3042, performs affine transformation on the texture data corresponding to this object, and configures the object Map a texture to each polygon.

  Here, in the present embodiment, the arrangement determining unit 3041 handles the objects and textures related to the sub-window and the objects and texture related to the main window in the same manner and arranges them in the virtual three-dimensional space. That is, just because an object relates to a subwindow, it is not necessary to generate image data for the subwindow prior to processing of the main window.

  However, as will be described later, when the object is determined to be an object related to the sub-window, the distance holding unit 3042 of the arrangement determining unit 3041 makes the distance from the viewpoint for two-dimensional image development constant for each object. To be held. Preferably, the direction holding unit 3043 holds the object so that the direction viewed from the viewpoint of each object constituting the sub window is constant.

  In addition, the arrangement determining unit 3041 performs a prohibition process so that a part or all of the object related to the main window does not enter the field of view of the sub window from the viewpoint.

(Development unit 3044)
The expansion unit 3044 expands an object arranged in the virtual three-dimensional space into a two-dimensional image.
Specifically, the expansion unit 3044 performs a coordinate conversion operation for converting an object defined in the world coordinate system into the viewpoint coordinate system, and stores the image data in the image data storage unit 305 as image data including the background image. .

  If the image data storage unit 305 is configured to be able to store image data for a plurality of frames, the image data may be generated and stored in a plurality of layers. For example, the background image data may be stored in one layer, and the image data for the object converted into the viewpoint coordinate system may be stored in another layer.

  Here, the expansion unit 3044 may perform a normal coordinate transformation operation for two-dimensionally expanding one virtual three-dimensional space without distinguishing whether the object is related to the sub window or the main window. . This is because the object related to the sub window has already been arranged so as to be suitable for the sub window display by the processing of the arrangement determining unit 3041.

(Display control unit 306)
The display control unit 306 reads out the frame image data stored in the image data storage unit 305 for each frame period and transfers the frame image data to the effect display device 40. Based on the transferred frame image data, the effect display device 40 displays an image corresponding to the frame image data in the image display area.

  When the image data storage unit 305 includes a plurality of layers, each frame image data is read out, synthesized in a predetermined priority order, and output as one frame image data.

(Operation on the main control board)
FIG. 6 is a flowchart showing control by the main control board 50.
In FIG. 6, when a player inserts a medal and the start switch 41 is operated, the control unit 101 detects that the start switch 41 is turned on, and the combination lottery unit 103 performs a combination lottery process. (Step S101 / YES, Step S102). On the other hand, when the start switch 41 is not operated by the player and the control unit 101 cannot detect that the start switch 41 is turned on, the process proceeds to step S101 until it detects that the start switch 41 is turned on. Repeat the process.

  In the combination lottery process in step S102, the combination lottery unit 103 acquires a random number and performs a combination lottery process by comparing the acquired random number with the lottery table. As a result of the lottery, if any combination is won, the flag of the combination is turned on in the flag information storage unit 105. The lottery result by the combination lottery unit 103 is transmitted as winning combination information to the sub-control board 60 via the I / F circuit 54 (step S103).

  The reel control unit 106 determines whether any one of the stop switch groups 42 has been operated (step S104). When any one of the stop switches is operated (step S104 / YES), reel control is performed so that the winning combination can be won, and the rotation of the reel corresponding to the operated stop switch is stopped (step S104). S105).

  If no winning combination has been won in the winning lottery process in step S102 (when “losing” has been won), the reel control unit 106 has not won any winning combination in step S105. The reel control corresponding to is performed.

  Subsequently, the reel control unit 106 determines whether all the stop switches are operated and all the reels are stopped (step S106). When all the reels have not stopped yet (step S106 / NO), the processing from the detection processing of presence / absence of the stop switch operation in step S104 is repeated.

  When all the reels are stopped (step S106 / YES), the winning determination unit 107 determines the presence / absence of winning based on the combination of symbols arranged on the activated effective line (step S107). As a result, if there is any winning (step S107 / YES), a winning process corresponding to the winning combination is executed (step S108).

When the winning combination is a “special combination”, the game state control unit 108 performs a transition process for executing the “special game” from the next game until a predetermined end condition is satisfied.
On the other hand, if it is determined in step S107 that there is no winning (step S107 / NO), the process returns to step S101.

  Subsequently, during the “special game”, the gaming state control unit 108 provides the reel control unit 106 with a “special game” so as to provide the player with a gaming state corresponding to the big bonus game or regular bonus game that is the “special role”. The reel control during “game” is performed, or the sub-control board 60 is performed for “special game”. When the specified number of games of the big bonus game or the regular bonus game is finished, a process of shifting to the “normal game” is performed.

  If the winning combination is not “special combination”, if the flag of the special combination is stored in the flag information storage unit 105 in the on state, the storage state of the flag in the flag information storage unit 105 is carried over to the next game. .

  When the winning combination is “replay”, the winning determination unit 107 causes the control unit 101 to carry a bet (the number of bets) on the game to the next game. On the other hand, when the winning combination is neither “special combination” nor “replay”, the payout control unit 109 causes the hopper device 93 to pay out the number of medals corresponding to the winning combination.

(Operation on sub-control board)
Next, the operation of the sub control board 60 will be described.
FIG. 7 is a flowchart showing control by the sub-control board 60.
In FIG. 7, first, the effect pattern selection unit 201 reads the effect pattern from the main control board 50 and transfers it to the effect control unit 202 (step S201). In step S202, the image control unit 301 of the effect control unit 202 determines whether the read effect pattern is a window effect pattern according to the present invention.

  If it is an effect pattern other than the window effect pattern (step S202 / NO), the image control unit 301 instructs the image data generation unit 304 to perform an image effect corresponding to the effect pattern. In step S205, the arrangement determination unit 3041 of the image data generation unit 304 performs normal object arrangement determination and texture mapping according to the effect pattern, and the expansion unit 3044 expands the virtual three-dimensional space into a two-dimensional image. Then, corresponding frame image data is generated and stored in the image data storage unit 305.

  On the other hand, when the transferred effect pattern is a window effect pattern (YES in step S202), the image control unit 301 instructs the image data generation unit 304 to perform an effect of displaying a window as follows. Do.

  In step S <b> 203, the arrangement determining unit 3041 sequentially reads out object data of objects that are image display targets in the next frame period from the object data storage unit 3031.

  Proceeding to step S204, the arrangement determining unit 3041 determines whether the read object is an object data generation process or a normal object data generation process, depending on whether the read object is an object for displaying a subwindow. When the object is a normal object (S204 / NO), the process proceeds to step S205, where normal object placement determination and texture mapping are performed according to the effect pattern, and the development unit 3044 converts the virtual three-dimensional space into a two-dimensional image. The corresponding frame image data is generated and stored in the image data storage unit 305.

  On the other hand, when the read object is an object related to the sub window (S204 / YES), the arrangement determining unit 3041 determines whether or not the sub window display position change is designated in the next frame period. First, the case where the display position change of the sub window is not designated (S206 / NO) will be described.

With reference to FIGS. 8 to 10, an object arrangement determination method according to the present embodiment will be described.
8 to 10 schematically show the positional relationship between the viewpoint C, the developed two-dimensional image P1, and each object constituting the subwindow. 8 is a view from above of an object related to a subwindow, FIG. 9 is a view from the side of an object related to a subwindow, and FIG. 10 is a schematic diagram illustrating only an object related to a subwindow.

  As shown in FIGS. 8 and 9, the subwindow is displayed by superimposing the outline texture BGT, the foreground texture FT, and the objects OBJ1 and OBJ2 on each other and developing them into a two-dimensional image.

  The outline texture BGT is a texture as a background image indicating the range of the sub-window, and the texture for the background image is mapped to a square polygon corresponding to the aspect ratio of the display of the monitor device. The outline texture BGT may be a non-transparent texture or a translucent texture. The foreground texture FT is a part of the pattern displayed in the sub-window, and a foreground image that is easier to handle if applied independently of the background image, such as a map, is applied. The foreground texture FT is also arranged by mapping a texture for displaying a foreground image on a polygon having a predetermined shape. The objects OBJ1 and OBJ2 are objects that are desired to be displayed without being hidden by the foreground texture FT. Here, a cylindrical object OBJ1 and a spherical object OBJ2 are arranged.

  As objects related to the main window, an object OBJ3 representing “chair” and an object OBJ4 representing “sofa” are arranged in a virtual three-dimensional space. Objects other than these sub-windows are arranged so as not to fall within the range of the outer periphery of the outline texture BGT from the viewpoint C.

  When observed from the viewpoint C, the size and arrangement are determined so that the objects related to the sub-windows overlap each other and fall within the range of the outer periphery of the outline texture BGT. All of the objects related to these subwindows are arranged at a certain distance from the viewpoint, preferably in a certain direction.

FIG. 10 shows the positional relationship of objects related to the subwindow.
As shown in FIG. 10, the outline texture BGT is arranged at a distance R0 from the viewpoint C. The foreground texture FT is disposed at the distance R3. The object OBJ1 is disposed at the distance R1, and the object OBJ2 is disposed at the distance R2. Preferably, the line of sight (center axis) VD to the outer texture BGT is held at an angle θd. The angles between the other objects and the line-of-sight direction VD are also kept constant. In the range VS (the range of θh in the horizontal direction of the virtual three-dimensional space and the range of θv in the vertical direction) in which the outer periphery of the outline texture BGT is desired from the viewpoint C, placement of objects related to the main window is prohibited. The feature of this embodiment is that these distances R0 to R3, the direction θd, and the like are held constant unless the position or size of the sub window P2 is changed.

FIG. 11 shows an image display example of the main window P1 generated by expanding a virtual three-dimensional space in which objects are arranged as shown in FIGS. 8 to 10 into a two-dimensional image.
Hereinafter, the constant distance held for the object n (1 to N: N is the number of objects related to the subwindow display) related to the subwindow is expressed as Rn, and the fixed direction is expressed as θn.

  As described above, in the present embodiment, the relative distance Rn between the arbitrary object n and the viewpoint related to the sub window P2 is kept constant. For this reason, the apparent size on the main window P1 (two-dimensional image) of each object n related to the sub window P2 does not change. For example, as shown in FIG. 11, the horizontal size X1 and the vertical size Y1 of the outline texture BGT remain constant.

  In the present embodiment, preferably, since the direction θn of each object n related to the sub window P2 from the viewpoint C is also kept constant, the display position of the sub window P2 in the main window P1 does not change. For example, as shown in FIG. 11, the distance (horizontal direction X0, vertical direction Y0) from the outer peripheries of the main window P1 to the sub window P2 does not change.

  By such control, even if the time has elapsed and the arrangement of the objects in the main window P1, the background image, and the position of the viewpoint C change, the object n related to the sub window P2 follows the movement of the viewpoint C, and the viewpoint C Are arranged in a certain distance Rn, preferably in a certain direction θn, and developed into a two-dimensional image. For this reason, it is always displayed at a constant size and position in the main window P1. Although the object related to the sub window P2 and the object related to the main window P1 are merely objects arranged in the same virtual three-dimensional space, only the sub window P2 is fixed to the main window P1. It is visually recognized with an illusion, and the sub-window P2 can be seen as a child screen.

  The distance Rn of the object n from the viewpoint is set to the approximate geometric center of the object n or the surface thereof when the object n has a thickness in the Z-axis direction (line-of-sight direction). The direction θn from the viewpoint is the angle from the geometric center of the image display area (main window) to the geometric center of the object n, or two sides perpendicular to each other that define the periphery of the name window It is specified by the distance from

  Returning to the flowchart of FIG. 7, when there is no change in the position of the sub-window P2 as described above (S206 / NO), the process proceeds to step S209, and the placement determination unit 3041 refers to the same distance Rn each time and determines the virtual object n. The arrangement is in a three-dimensional space. Preferably, the process proceeds to step S210, and the arrangement determining unit 3041 refers to the same direction θn every time, and sets the direction of the object n in the virtual three-dimensional space.

  Next, the case where it becomes necessary to change the display position of the sub-window P2 in the main window P1 according to the progress of the production pattern will be described. The case where the display position of the sub window is changed means, for example, a case where the display position of the sub window is changed according to the image content displayed in the main window by the program of the effect pattern. There may be a case where it is easier to see if the display position of the sub-window is changed by the object of the main window becoming larger or moving.

  When it is necessary to change the display position of the sub window P2 (S206 / YES), the process proceeds to step S207, and the arrangement determining unit 3041 changes the distance Rn from the viewpoint of the object n related to the sub window P2. In addition, preferably, the process proceeds to step S208, and the arrangement determining unit 3041 changes the direction θn from the viewpoint of the object n related to the sub window P2. A new distance Rn and direction θn are determined and updated for each object n. In step S209, the arrangement determining unit 3041 arranges each object n in the updated distance Rn from the viewpoint and the direction θn from the viewpoint.

  FIG. 12 shows an image display example when the position of the sub window P2 in the main window P1 is changed. In this example, since the distance Rn of the object Rn related to the sub-window is hardly changed, the size of each object constituting the sub-window is not apparently changed. On the other hand, since the direction from the viewpoint C of each object Rn is changed, the display position of the sub window P2 in the main window P1 is greatly changed.

  Next, the process proceeds to step S211, and the arrangement determining unit 3041 determines whether or not the size of the sub window is specified according to the effect pattern. If the sub window size change is designated (YES), the process proceeds to step S212, and the arrangement determining unit 3041 changes the size of each object n related to the sub window P2 at the same magnification.

  FIG. 13 shows an image display example of the main window P1 after being expanded into a two-dimensional image when the size change (enlargement) of the sub window P2 is designated. As shown in FIG. 13, as a result of enlargement of each object at the same magnification, the entire sub-window P2 seems to be simply enlarged to the size in the horizontal direction X2 (> X1) and the vertical direction Y2 (> Y1). Visible to.

  Note that the change of the size of the sub-window can also be achieved by changing the distance between each object n and the viewpoint C small when expanding, and by changing the distance between each object n and the viewpoint C greatly when reducing. However, if the subwindow is composed of a plurality of objects and the distance between each object and the viewpoint C varies, the reduction / enlargement ratio of the distance between each object and the viewpoint C must be changed as appropriate. Since the balance of the apparent sizes of the display objects is lost and the relative positions of the display objects change, the calculation process may be complicated. However, when interference occurs with the object constituting the main window P1 by enlarging without changing the distance between the object n and the viewpoint C, one of the sub-window size changing methods that can be adopted. It is one.

  When the magnification change for each object n is completed in step S212, or when the size change of the sub window P2 is not specified in step S211 (NO), the process proceeds to step S213, and the arrangement determining unit 3041 Texture data corresponding to the object is read from the texture data storage unit 3032 and mapped. By this mapping, the pattern of the object in the sub window P2 and the object in the main window P1 is set.

  Then, the process proceeds to step S214, and it is determined whether or not another object exists. If another object exists (NO), the process proceeds to step S203, and the arrangement determining unit 3041 again determines the other object. The series of processes (S203 to S213) is repeated. If no other object exists in step S214 (YES), the process proceeds to step S215, and the development unit 3044 coordinates the virtual three-dimensional space into a two-dimensional image using the set viewpoint C as a reference. The conversion operation is performed to obtain image data, the process proceeds to step S216, and the generated image data is written in the image data storage unit 305.

  In step S217, the display control unit 306 reads out the image data from the image data storage unit 305 at the frame timing, transfers it to the effect display device 40, and displays the image generated for the frame period.

(Modification)
The present invention is not limited to the above and can be implemented with various modifications.
For example, in the above embodiment, the outline texture BGT for defining the outline of the sub-window P2 is arranged behind the other related objects when viewed from the viewpoint C, but it is also effective to display this in front. .

FIG. 14 shows the positional relationship of objects related to the sub-window of this modification.
As shown in FIG. 14, the outline texture BGT2 is now arranged at a distance R4 closest to the viewpoint C. The angle from the line-of-sight direction (center axis) VD to the outline texture BGT2 is maintained at θd as described above. There is no change in the distance and direction between another object and the viewpoint C. If the size of the subwindow is made the same as above, the viewing angle from the viewpoint C is also made the same as above (horizontal direction θh, vertical direction θv). The outer shape texture BGT2 is made smaller in proportion to the distance as it approaches the viewpoint C.

  In this modified example, the outline texture BGT2 needs to be a translucent texture. This is because the object behind must be observed through the texture. In particular, it is preferable that the outline texture BGT2 is provided with a semi-transparent fine stripe pattern imitating a scanning line.

FIG. 15 shows an image display example of the main window P1 when a virtual three-dimensional space including objects related to sub-windows according to this modification is expanded into a two-dimensional image.
As shown in FIG. 15, in this modified example, a translucent striped outline texture BGT2 is arranged on the front side of the viewpoint C, so that the striped pattern is observed in the entire subwindow P2, and the display of the monitor device is displayed. The illusion is as if the object related to the subwindow is being observed. Therefore, a realistic sub-screen display can be implemented.

  For example, in the above embodiment, the slot machine is taken as an example to describe the embodiment of the present invention. However, the present invention is not limited to this, and can be applied to a pachinko machine, for example. Furthermore, the present invention is not limited to gaming machines. The image generation method of the present invention can be applied to any image generation apparatus capable of displaying a three-dimensional image. For example, the present invention can be applied to a 3D game device, a simulator, and the like.

  Moreover, the said embodiment is realizable when a computer runs a program. The means for supplying the program to the computer may be a computer-readable recording medium such as a CD-ROM recording the program or a transmission medium such as the Internet for transmitting the program. As mentioned above, although embodiment of this invention has been explained in full detail with reference to drawings, a concrete structure is not restricted to said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.

(effect)
As described above, according to the present embodiment, in the virtual three-dimensional space, the distance between the object related to the sub window P2 and the viewpoint C serving as the reference for the two-dimensional development is kept constant, so that time has elapsed. However, the size of the sub-window P2 including the object viewed from the viewpoint C does not change even if other objects or the background change or the position of the viewpoint C changes. For this reason, on the image display, the sub window P2 is visually recognized so as to exist independently of the surrounding space, and is recognized as an illusion as if the sub-screen is inserted. On the other hand, the object for displaying the sub-window only needs to be arranged in a virtual three-dimensional space and expanded into a two-dimensional image in the same way as handling other objects, so that the processing burden is not excessively increased. Sub-screen display can be effectively realized.

  Further, according to the present embodiment, since the direction of the object related to the sub window P2 from the viewpoint C is kept constant, the arrangement of the object related to the sub window P2 is fixed in the main window P1. For this reason, since the position of the sub-window P2 is fixed and visually recognized even if the surrounding object or background changes, it is emphasized more clearly that it is a child screen, and it can be displayed like a child screen. Become.

  Further, according to the present embodiment, since the outline texture BGT representing the outline of the sub-window P2 is associated, the outline of the child screen can be clearly shown, and the fact that the child screen is highlighted is displayed. Can do.

  Further, according to the present embodiment, since the arrangement of the object related to the main window P2 is controlled so as to fall within the range of the viewing angle from the viewpoint C to the outline texture BGT, it is possible to display a complicated child screen image. Is possible.

  In addition, according to the present embodiment, by applying the translucent texture of the scanning line pattern to the texture for the outer shape and arranging it on the near side of the viewpoint C, the scanning line can be displayed on the entire sub-window. Furthermore, it can look like a child screen.

  Further, according to the present embodiment, when the display position of the sub window P2 in the main window P1 is changed, the arrangement in the virtual three-dimensional space is simultaneously performed while keeping the relative distance between the object related to the sub window P2 and the viewpoint C constant. Thus, the display position on the main window P1 can be changed while maintaining the size of the sub window P2.

  Further, according to the present embodiment, when the display size of the sub window P2 is changed, the size of the object associated with the sub window is changed at the same magnification as the display size change magnification of the sub window P2. Therefore, the subsize observed from the viewpoint C changes corresponding to the magnification, and the size of the subwindow P2 in the main window P1 can be changed. At this time, even if there are a plurality of objects related to the sub-window P2, the size of the sub-screen can be changed with a simple process because each object is only enlarged at the same magnification.

  Further, according to the present embodiment, it is prohibited to place another object that is not associated with the subwindow P2 within the field of view from the viewpoint C to the subwindow P2 (outline texture BGT). For this reason, since an object arranged within the range of the subwindow P2 and an object outside the range of the subwindow P2 do not interfere with each other, it is possible to prevent an unnatural image from being displayed as a child screen. .

The front view of the slot machine which concerns on embodiment of this invention The block diagram which shows the system configuration | structure of the slot machine which concerns on embodiment of this invention. Functional block diagram showing the functional configuration of the main control board Functional block diagram showing the functional configuration of the sub-control board Functional block diagram showing the detailed functional configuration of the production control unit Flow chart showing control by main control board 7 is a flowchart showing control of the sub control board in the first embodiment. Object layout related to sub-window in virtual 3D space 1 Object layout related to sub-window in virtual 3D space 2 Relationship between viewing angle from viewpoint C and distance / direction between objects related to sub-window Image display example of main window P1 and sub window P2 Image display example of subwindow P2 whose display position has been changed Image display example of subwindow P2 with changed display size Relationship between the viewing angle from the viewpoint using the external texture according to the modification and the distance / direction between the objects related to the subwindow Image display example of main window P1 and subwindow P2 according to the modification

Explanation of symbols

10 slot machine 21 display window 31 reel 31L left reel 31C middle reel 31R right reel 40 effect display device 50 main control board 51 main CPU
52, 62 ROM
53, 63 RAM
54, 69 I / F circuit 60 Sub control board 101 Control unit 102 Lottery table 103 Role lottery unit 105 Flag information storage unit 106 Reel control unit 107 Winning determination unit 108 Game state control unit 201 Production pattern selection unit 202 Production control unit 301 Image Control unit 302 Sound control unit 3031 Object data storage unit 3032 Texture data storage unit 304 Image data generation unit 3041 Placement determination unit 3042 Distance holding unit 3043 Direction holding unit 3044 Expansion unit 305 Image data storage unit 306 Display control unit

Claims (11)

An image generation device for generating image data for displaying a predetermined window in an image display area,
A storage unit for storing image data for an object associated with the window;
An arrangement determining unit that determines the arrangement of the object in the virtual three-dimensional space with reference to the image data;
A development unit that performs two-dimensional development of a virtual three-dimensional space in which the object is arranged with reference to a predetermined viewpoint;
The arrangement determining unit includes a distance holding unit that holds a constant relative distance between the object associated with the window and the viewpoint;
An image generation apparatus characterized by the above. The arrangement determining unit
Directional holding means for holding the direction of the object associated with the window from the viewpoint constant;
The image generation apparatus according to claim 1.   The image generation apparatus according to claim 1, wherein an outline texture representing an outline of the window is associated with the window.   A plurality of the objects associated with the window are provided in addition to the outline texture, and the plurality of objects fall within a viewing angle range from the viewpoint to the outline texture. The image generation apparatus according to claim 3, wherein the arrangement is controlled. When changing the display position of the window in the image display area,
The image generation apparatus according to claim 1, wherein the arrangement in the virtual three-dimensional space is simultaneously changed while the relative distance between the object associated with the window and the viewpoint is constant. . When changing the display size of the window,
6. The image generation apparatus according to claim 1, wherein the size of the object associated with the window is changed at the same magnification as the display size change magnification of the window.   The image generation apparatus according to claim 1, wherein another object that is not associated with the window is prohibited from being placed in a field of view from the viewpoint to the window.   A gaming machine comprising the image generating device according to claim 1. An image generation method for generating image data for displaying a predetermined window in an image display area,
Determining an arrangement of the object in a virtual three-dimensional space with reference to image data for the object associated with the window;
Two-dimensionally developing a virtual three-dimensional space in which the object is arranged with reference to a predetermined viewpoint;
Maintaining a constant relative distance between the object associated with the window and the viewpoint;
An image generation method comprising:   The image generation method according to claim 9, further comprising a step of maintaining a constant direction from the viewpoint of the object associated with the window. A program for causing a computer to execute the image generation method according to claim 9.

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