JP4097235B2 - Image generating apparatus and information storage medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image generation device and an information storage medium for generating a view field image at a given viewpoint in an object space.
[0002]
[Background Art and Problems to be Solved by the Invention]
Conventionally, there has been known an image generation apparatus that arranges a plurality of objects in an object space, which is a virtual three-dimensional space, and generates a visual field image at a given viewpoint. It's very popular as a product that can
[0003]
Taking an image generation device that can enjoy a baseball game as an example, the player enjoys the game by operating the batter game character on the screen and hitting the ball thrown from the pitcher game character with the bat projected on the screen. According to this image generating apparatus, it is possible to give the player a feeling that he is actually playing baseball.
[0004]
In this type of game, it is necessary to determine whether or not the ball thrown from the pitcher game character has passed through the strike zone. In general, the computer makes a strike or ball determination based on a determination criterion such as whether or not the two-dimensional position of the ball on the field crosses the home base.
[0005]
However, the ball flies in a three-dimensional object space, and the player focuses his eyes on the ball image to hit the ball. Therefore, it is difficult for the player to recognize whether or not the two-dimensional position of the ball on the field crosses the home base. For this reason, it has been extremely difficult for the player to recognize on which criterion the computer has determined whether or not to strike. As a result, there are problems that the player is dissatisfied or questioned about the determination, or that the determination criterion is ambiguous for the player and the degree of immersion of the player into the game is impaired.
[0006]
The present invention has been made to solve the technical problems as described above, and an object of the present invention is to enable a player to effectively recognize a judgment criterion for passage of a flying object through a judgment zone. An object is to provide an image generation apparatus and an information storage medium.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides an image generation apparatus that generates a field-of-view image at a given viewpoint in an object space, and includes a flying object that flies over a given field in the object space. Means for performing a process for determining whether or not the vehicle has passed a given determination zone, and a determination criterion used as a reference when making the determination when it is determined that the flying object has passed the determination zone It includes means for performing a process for displaying a marker for informing a point, and means for generating a visual field image including an image of the flying object.
[0008]
According to the present invention, a flying object such as a ball flies in the object space. Then, it is determined whether or not the flying object has passed a determination zone such as a strike zone in a baseball game. And when it is determined that it has passed, a marker for informing the determination reference point is displayed. It is generally difficult for a player or the like who sees a view field image to recognize what criteria the determination of the passage of the flying object flying in the object space is based on. However, according to the present invention, a marker for notifying the determination reference point is displayed. Therefore, the player can easily and clearly recognize the determination criterion.
[0009]
In the present invention, when the determination zone is defined by a given determination area on the field, the determination area and a locus of a two-dimensional coordinate position on the field of the flying object intersect. The marker is displayed. In the present invention, the size and position of the determination zone are defined by a determination area corresponding to a home base in a baseball game, for example. Then, a marker for notifying the determination reference point is displayed at a place where the determination area and the locus of the two-dimensional coordinate position of the flying object intersect. As a result, even when determining whether or not the flying object can pass through the determination zone based on a determination criterion close to that in the real world, the player or the like can easily and clearly recognize this determination criterion.
[0010]
The present invention also allows the shadow of the flying object to move on the field by following the flying of the flying object, and when the shadow intersects the determination area, the shadow is used as the marker on the determination area. It is characterized by leaving in. In this way, the shadow of the flying object can be used as a marker. Accordingly, the marker can be displayed without preparing a special display object other than the shadow, so that the processing can be simplified and more natural image expression can be achieved.
[0011]
In the present invention, when the determination zone is defined by a given determination area on the field, an area obtained by perspectively projecting the determination area on the screen, and a point obtained by perspectively projecting the flying object on the screen. The marker is displayed at a place where the locus intersects. According to the present invention, whether or not the flying object can pass through the determination zone is determined based on the determination criterion whether or not the perspective projection area of the determination area and the perspective projection point of the flying object intersect. As a result, it is possible to make a determination based on a determination criterion that is easy for a player or the like to understand and convince.
[0012]
The present invention is characterized in that the flying object is a ball in a baseball game, the determination zone is a strike zone, and the determination area is a home base. This makes it possible for the player to easily and clearly recognize the strike and ball criteria in the baseball game.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
First, the principle of this embodiment will be described.
[0015]
In this embodiment, a flying object such as a baseball ball flies over a given field in the object space. Then, it is determined whether or not the flying object has passed a given determination zone such as a strike zone in a baseball game. When it is determined that the flying object has passed the determination zone, a marker is displayed that informs the determination reference point that is the reference when the determination is made. More specifically, for example, a method as shown in FIGS. 1A and 1B is employed.
[0016]
In FIG. 1A, the position, size, and the like of the determination zone 20 are defined by a given determination area 22 such as a home base in a baseball game. A marker 30 is displayed at a location where the determination area 22 and the locus 28 of the two-dimensional coordinate position 27 on the field 24 of the flying object 26 intersect.
[0017]
In real-world baseball, whether a ball is a strike or a ball is determined based on a determination criterion whether the two-dimensional position of the ball on the field crosses the home base. Therefore, in the baseball game, it is desirable to determine whether or not the strike is based on the above-described determination criterion in order to construct a game world closer to the real world.
[0018]
However, in the baseball game, since the ball flies in the three-dimensional object space, it is very difficult for the player to recognize whether or not the two-dimensional position of the ball crosses the home base. In this case, a method of displaying the shadow of the ball can be adopted to reduce the difficulty. However, when playing the game, the player concentrates his eyes on the ball to hit the ball well, so he does not pay much attention to the presence of the shadow. For this reason, even if the shadow of the ball is displayed, the above difficulty is not greatly reduced.
[0019]
As described above, it is difficult for the player to recognize the criterion for determining whether or not the two-dimensional position of the ball has crossed the home base. For this reason, when the computer makes a strike or ball determination based on such a determination criterion, the player is dissatisfied or questioned about the determination result, or the player's degree of immersion in the game is impaired.
[0020]
According to the present embodiment, as shown in FIG. 1A, the marker 30 for the player to know what criteria the computer has determined is displayed. Therefore, the player can easily and clearly recognize the determination criterion, that is, whether or not the trajectory 28 of the two-dimensional position 27 of the flying object 26 intersects the determination area 22 in the case of FIG. For this reason, it is possible to reduce the distrust of the player's determination result, and it is possible to increase the degree of immersion of the player in the game and the degree of heat.
[0021]
On the other hand, in the method of FIG. 1B, unlike FIG. 1A, an area 34 in which the determination area 22 is perspectively projected on the screen 32 and a locus of a point in which the flying object 26 is perspectively projected on the screen 32 are obtained. Markers 30 are displayed at the intersections.
[0022]
As described above, in the real world, it is determined whether or not the strike is made based on the determination criterion whether or not the two-dimensional position of the ball on the field crosses the home base. Therefore, in order to build a game world closer to the real world, it is desirable to determine whether or not it is a strike in the baseball game based on the above criteria.
[0023]
However, what the player actually sees in the baseball game is an image that can be seen at the viewpoint 31 and is an image that is perspectively projected on the screen 32. Therefore, in the world of baseball games, it may be easier for the player to understand that the strike is determined when the home-based perspective projection image and the ball perspective projection image intersect without using the real-world criteria. is there. Therefore, in such a case, the method shown in FIG. That is, when the area 34 obtained by perspective projection of the determination area 22 and the locus of the point obtained by perspective projection of the flying object 26 intersect with each other, the strike is determined, and the marker 30 is displayed at the intersection. This method employs a determination criterion different from that of the real world, and thus the realism of the game is impaired. However, the determination criterion is easy for the player to understand and has an advantage that the ease of operation of the game can be improved.
[0024]
FIG. 2 shows an example of a functional block diagram of the image generation apparatus according to the present embodiment. Here, the operation unit 10 is for inputting operation information from the player, and the operation information obtained by the operation unit 10 is input to the processing unit 100. The processing unit 100 performs processing for setting an object space in which a plurality of objects representing display objects are arranged based on the operation information, a given program, and the like. It is comprised by wear. The image generation unit 200 performs processing for generating a visual field image that can be seen from a given viewpoint in the set object space. For example, the image generation unit 200 uses hardware such as a CPU, a DSP, an image generation dedicated IC, and a memory. Composed. The view field image obtained by the image generation unit 200 is displayed on the display unit 12.
[0025]
Here, the processing unit 100 includes a determination processing unit 110 and a marker display processing unit 120. Here, the determination processing unit 110 performs processing for determining whether a flying object flying on a given field in the object space has passed a given determination zone. In addition, when it is determined that the flying object has passed the determination zone, the marker display processing unit 120 performs processing for displaying a marker that notifies the determination reference point that is a reference when this determination is made.
[0026]
FIGS. 3A to 5B show examples of field-of-view images generated by this embodiment.
[0027]
FIG. 3A is a view field image of a scene in which the pitcher game character 40 is throwing the ball 44 against the batter game character 42. At this time, in this embodiment, the shadow 46 is moved on the field following the movement of the ball 44, and the position coordinates of the shadow 46 coincide with the two-dimensional position coordinates of the ball 42.
[0028]
FIG. 3B is a view field image of a scene in which the ball 44 further approaches the batter game character 42. At this time, the two-dimensional position of the ball 44 crosses the home base 48. That is, the shadow 46 of the ball 44 is on the home base 48. Therefore, in this case, it is determined as a strike by adopting a criterion for determining a strike in the real world.
[0029]
In this embodiment, when the strike is determined as described above, a shadow 46 is left on the home base 48 as shown in FIG. This remaining shadow 46 serves as a marker for informing the player of the computer's strike and ball criteria. On the other hand, when it is determined that the pitch of the pitcher game character 40 is a ball, the shadow 46 does not remain on the home base 48 as shown in FIG.
[0030]
When the ball 44 flies as shown in FIGS. 3A and 3B, the player's eyes are concentrated on the ball 44. Therefore, little attention is paid to the presence of the shadow 46. Since both the ball 44 and the shadow 46 fly at a considerable speed, the player can hardly recognize where the shadow 46 has passed on the home base 48. Therefore, in the conventional method in which the shadow 46 does not remain on the home base 48, the game proceeds in a state where the player cannot recognize why the ball 44 that has flew is a strike or why it is a ball.
[0031]
On the other hand, in this embodiment, as shown in FIG. 4A, a shadow 46 is left at the determination reference point on the home base 48 when the strike determination is made. The player who sees the remaining 46 can easily recognize that the computer has determined that the strike has occurred because a shadow has passed the determination reference point. In other words, the player can easily recognize the determination criteria of the computer. Therefore, the dissatisfaction and doubt that the player has regarding the determination of strike and ball can be solved. In addition, the ambiguity of the determination criteria for strikes and balls can be eliminated, and the player's degree of immersion and enthusiasm for the game can be greatly increased.
[0032]
3A to 4B, a shadow 46 is disposed at a two-dimensional position of the ball 44. However, it is possible to make the two-dimensional position of the ball 44 different from the position of the shadow 46 on the assumption that the light source is not directly above. In this case, a marker other than the shadow 46 may be left on the home base 48.
[0033]
FIGS. 5A and 5B are examples of a view field image when a marker is left by the method shown in FIG. In this method, the determination of strike or ball is performed based on whether or not the perspective projection image of the ball 44 crosses the perspective projection image of the home base 48. In FIG. . Then, as shown in FIG. 5B, a marker 50 is displayed at a location where the perspective projection image of the ball 44 and the perspective projection image of the home base 48 intersect. By looking at this marker 50, the player can clearly grasp the determination criteria.
[0034]
When attempting to faithfully reproduce a real-world event, the strike or ball should be determined by whether or not the shadow 46 (more precisely, the two-dimensional position of the ball 44) has crossed the home base 48. However, what the player actually sees is a perspective projection image on the screen. Therefore, as shown in FIGS. 5A and 5B, the determination criterion of determining whether the ball is a strike or a ball based on whether or not the perspective projection image of the ball 44 crosses the perspective projection image of the home base 48 is better for the player. Easy to understand and easy to understand for players. Also in this case, in this embodiment, as shown in FIG. 5B, the marker 50 is left at a point that is a criterion for determination. Therefore, the player can easily understand that the computer has made the determination based on the above-described determination criterion as to whether or not the perspective projection image of the ball 44 has crossed the perspective projection image of the home base 48 by looking at the remaining marker 50. Can understand. For this reason, the dissatisfaction and doubt that the player has with respect to the determination can be solved, and the degree of immersion of the player into the game can be greatly increased.
[0035]
When a mark such as a shadow is left on the home base, the mark may be left regardless of whether or not the batter game character 42 hits the ball 44, or when the hit is made before the strike or the ball is determined. It is also possible to leave no mark on the. If the mark is left regardless of the hit of the ball, there is an advantage that the player can be notified of which course of the ball has been hit.
[0036]
Next, an example of the operation of this embodiment will be described with reference to the flowchart shown in FIG.
[0037]
First, for example, a process of moving the ball by a moving amount for one frame is performed (step S1). In this case, the amount of movement of the ball for one frame is determined based on the ability information of each pitcher game character, the ball type selected by the player, wind direction information, and the like.
[0038]
Next, it is determined whether or not the catcher has caught the ball (step S2). If not, it is determined whether or not the Z coordinate of the ball is on the home base (step S3).
[0039]
The coordinate setting in this embodiment is as shown in FIG. That is, the Z coordinate is set in a direction connecting the position of the pitcher game character 40 and the center of the home base 48, and the X coordinate is set in a direction orthogonal to the Z coordinate. A Y coordinate is set in the height direction. Therefore, when the coordinates of the ball 44 are (X, Y, Z), the coordinates of the shadow 46 are (X, 0, Z).
[0040]
Whether or not the Z coordinate of the ball is on the home base is determined as follows, for example. That is, as shown in FIG. 7B, the coordinates of the vertices V1 to V4 of the home base 48 are V1 (a, 0, b), V2 (-a, 0, b), V3 (-a, 0, In the case of -b), V4 (a, 0, -b), it is determined whether or not the Z coordinate of the ball satisfies the following expression.
| Z | <2b (1)
When it is determined that the Z coordinate of the ball is not on the home base, the process returns to step S1, and the ball is moved again by the movement amount for one frame. On the other hand, if it is determined that the Z coordinate of the ball is on the home base, it is next determined whether or not the X coordinate of the ball is on the home base (step S4). This is determined by whether or not the X coordinate of the ball satisfies the following formula.
| X | <2a (2)
If the X coordinate is not on the home base, the process returns to step 1. On the other hand, if the X coordinate is on the home base, it is determined whether or not there is already a shadow remaining on the home base (step S5). If not, the home base 48 is displayed as shown in FIG. The shadow 46 is left on (step S6). After displaying the shadow remainder, the process returns to step 1 to move the ball again. When the ball moves and is caught by the catcher, for example, a strike / ball determination display as shown at E in FIG. 4A is performed (step S7).
[0041]
In FIG. 6, the Y coordinate of the ball, that is, the height of the ball is not checked, but this may be checked. When strike determination and marker display are performed by the method shown in FIGS. 1B, 5A, and 5B, it is determined in the screen coordinate system whether the ball is on the home base, and the screen What is necessary is just to determine the display position of the marker in the coordinate system.
[0042]
Next, an example of a hardware configuration capable of realizing the present embodiment will be described with reference to FIG. In the apparatus shown in the figure, a CPU 1000, a ROM 1002, a RAM 1004, an information storage medium 1006, a sound generation IC 1008, an image generation IC 1010, and I / O ports 1012, 1014 are connected to each other via a system bus 1016 so that data can be transmitted and received. A display 1018 is connected to the image generation IC 1010, a speaker 1020 is connected to the sound generation IC 1008, a control device 1022 is connected to the I / O port 1012, and a communication device 1024 is connected to the I / O port 1014. Has been.
[0043]
The information storage medium 1006 mainly stores programs, image information for expressing display objects, sound information, and the like, and includes a CD-ROM, game cassette, IC card, DVD, MO, FD, memory, and the like. Used. For example, a consumer game device uses a CD-ROM, game cassette, DVD, or the like as an information storage medium for storing a game program or the like. The arcade game machine uses a memory such as a ROM. In this case, the information storage medium 1006 is a ROM 1002.
[0044]
The control device 1022 corresponds to a game controller, an operation panel, and the like, and is a device for inputting a result of a determination made by the player in accordance with the progress of the game to the device main body.
[0045]
In accordance with a program stored in the information storage medium 1006, a system program stored in the ROM 1002 (such as device initialization information), a signal input by the control device 1022, the CPU 1000 controls the entire device and performs various data processing. . The RAM 1004 is a storage means used as a work area of the CPU 1000 and stores the given contents of the information storage medium 1006 and the ROM 1002 or the calculation result of the CPU 1000. A data structure having a logical configuration such as table data is constructed on the RAM or information storage medium.
[0046]
Further, this type of apparatus is provided with a sound generation IC 1008 and an image generation IC 1010 so that game sounds and game images can be suitably output. The sound generation IC 1008 is an integrated circuit that generates game sounds such as sound effects and background music based on information stored in the information storage medium 1006 and the ROM 1002, and the generated game sounds are output by the speaker 1020. The image generation IC 1010 is an integrated circuit that generates pixel information to be output to the display 1018 based on image information sent from the RAM 1004, the ROM 1002, the information storage medium 1006, and the like. As the display 1018, a so-called head mounted display (HMD) can be used.
[0047]
The communication device 1024 exchanges various types of information used inside the game device with the outside. The communication device 1024 is connected to other game devices to send and receive given information according to the game program, and to connect a communication line. It is used for sending and receiving information such as game programs.
[0048]
Various processes described in FIGS. 1 to 7B are realized by an information storage medium 1006 that stores a program for performing a given process, a CPU 1000 that operates according to the program, an image generation IC 1010, a sound generation IC 1008, and the like. Is done. The processing performed by the image generation IC 1010, the sound generation IC 1008, and the like may be performed by software using the CPU 1000 or a general-purpose DSP.
[0049]
FIG. 9A shows an example in which this embodiment is applied to an arcade game device. The player enjoys the game by operating the lever 1102, the button 1104, and the like while viewing the game image displayed on the display 1100. A CPU, an image synthesis IC, a sound synthesis IC, and the like are mounted on a system board 1106 built in the apparatus. And information for performing processing for determining whether or not a flying object flying on a given field in the object space has passed a given determination zone, and that the flying object has passed the determination zone Information for performing processing for displaying a marker that informs a determination reference point that is a reference when the determination is made, information for generating a visual field image including an image of the flying object, When the determination zone is defined by a given determination area on the field, the marker is displayed at a location where the determination area and a trajectory of a two-dimensional coordinate position on the field of the flying object intersect. The marker is located at a location where an area obtained by perspectively projecting the judgment area on the screen and a locus of a point obtained by perspectively projecting the flying object on the screen intersect. Information and the like for display is stored in the memory 1108 is an information storage medium on the system board 1106. Hereinafter, these pieces of information are referred to as stored information. The stored information includes at least one of program code, image information, sound information, display object shape information, table data, list data, player information, and the like for performing the various processes described above.
[0050]
FIG. 9B shows an example in which this embodiment is applied to a home game device. The player enjoys the game by operating the game controllers 1202 and 1204 while viewing the game image displayed on the display 1200. In this case, the stored information is stored in a CD-ROM 1206, IC cards 1208, 1209, etc., which are information storage media detachable from the main unit.
[0051]
FIG. 9C shows an example in which the present embodiment is applied to a game device including a host device 1300 and terminals 1304-1 to 1304 -n connected to the host device 1300 via a communication line 1302. Show. In this case, the stored information is stored in an information storage medium 1306 such as a magnetic disk device, a magnetic tape device, or a memory that can be controlled by the host device 1300, for example. When the terminals 1304-1 to 1304-n have a CPU, an image generation IC, and a sound generation IC and can generate a game image and a game sound stand-alone, the host device 1300 receives a game image and a game A game program or the like for generating sound is delivered to the terminals 1304-1 to 1304 -n. On the other hand, if it cannot be generated stand-alone, the host device 1300 generates game images and game sounds, which are transmitted to the terminals 1304-1 to 1304-n and output at the terminals.
[0052]
The present invention is not limited to that described in the above embodiment, and various modifications can be made.
[0053]
For example, the above embodiment has mainly described the case where the present invention is applied to a baseball game. However, the present invention is particularly effective for strike determination in a baseball game, but can be applied to various other games. For example, FIG. 10A shows an example where the present invention is applied to a soccer game. In FIG. 10A, the shadow 62 of the ball 60 is left on the line. In soccer, when the ball passes the goal line, it becomes a goal kick or the like, and when it passes the side line, it is throwing. However, when the ball flies in the air, it becomes difficult to determine whether it has passed over the goal line or the side line. However, if the shadow 62 is left as shown in FIG. 10A, it is possible to make the player effectively recognize the determination criterion. FIG. 10B shows an example in which the present invention is applied to a rugby game or an American football game. Also in FIG. 10B, the shadow 66 of the ball 64 remains. This allows the player to effectively recognize the criterion for determining whether or not the penalty kick has been successful.
[0054]
For realizing the present invention, the techniques shown in FIGS. 1A and 1B are particularly effective, but various techniques equivalent to these techniques can be employed.
[0055]
The present invention is applicable not only to home and business game devices but also to various devices such as a simulator, a large attraction device in which a large number of players participate, a personal computer, a multimedia terminal, and a system board for synthesizing game images. it can.
[0056]
[Brief description of the drawings]
FIGS. 1A and 1B are diagrams for explaining the principle of this embodiment.
FIG. 2 is an example of a functional block diagram of the present embodiment.
FIGS. 3A and 3B are examples of visual field images generated according to the present embodiment.
FIGS. 4A and 4B are also examples of a field-of-view image generated according to the present embodiment.
FIGS. 5A and 5B are also examples of a field-of-view image generated according to the present embodiment.
FIG. 6 is a flowchart for explaining an example of the operation of the embodiment;
FIGS. 7A and 7B are diagrams for explaining strike and ball determination processing. FIG.
FIG. 8 is a diagram illustrating an example of a hardware configuration that implements the present embodiment;
FIGS. 9A, 9B, and 9C are diagrams for describing various types of apparatuses to which the present embodiment is applied.
FIGS. 10A and 10B are diagrams for explaining a case where the present invention is applied to a soccer game, a rugby game, and an American football game.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Operation part 12 Display part 20 Judgment zone 22 Judgment area 24 Field 26 Projecting object 27 Two-dimensional coordinate position 28 of projecting object 30 Trajectory 30 Marker 31 View point 32 Screen 34 Perspective projection area 100 of a judgment area Processing unit 200 Image generation unit

Claims (7)

An image generation device that generates a view field image at a given viewpoint in an object space,
A determination processing means for performing processing for determining whether or not a flying object flying on a given field in the object space passes a given determination zone;
Marker display processing means for performing a process for displaying a marker that informs a determination reference point that has become a reference when the determination is made when the flying object passes through the determination zone;
Look including a means for generating a field of view image including an image of said flying object,
The marker display processing means
When the determination zone is defined by a given determination area on the field, the marker is displayed at a location where the determination area and a trajectory of a two-dimensional coordinate position on the field of the flying object intersect. An image generation apparatus characterized by performing a process to perform the above process . In claim 1 ,
Means for performing a process of moving the shadow of the flying object on the field by following the flying of the flying object,
The marker display processing means
When the shadow intersects with the determination area, an image generating apparatus is provided that performs a process of leaving the shadow on the determination area as the marker. An image generation device that generates a view field image at a given viewpoint in an object space,
A determination processing means for performing processing for determining whether or not a flying object flying on a given field in the object space passes a given determination zone;
Marker display processing means for performing a process for displaying a marker that informs a determination reference point that has become a reference when the determination is made when the flying object passes through the determination zone;
Generating a field-of-view image including an image of the flying object,
The marker display processing means
Where the determination zone is defined by a given determination area on the field, the area where the determination area is projected onto the screen and the locus of the point where the flying object is projected onto the screen intersect And displaying the marker. In any one of Claims 1 thru | or 3 ,
An image generating apparatus, wherein the flying object is a ball in a baseball game, the determination zone is a strike zone, and the determination area is a home base. A computer-readable information storage medium for generating a field-of-view image at a given viewpoint in an object space,
A determination processing means for performing processing for determining whether or not a flying object flying on a given field in the object space passes a given determination zone;
Marker display processing means for performing a process for displaying a marker that informs a determination reference point that has become a reference when the determination is made when the flying object passes through the determination zone;
As an image generation means for generating a visual field image including the image of the flying object,
Make the computer work ,
The marker display processing means
When the determination zone is defined by a given determination area on the field, the marker is displayed at a location where the determination area and a trajectory of a two-dimensional coordinate position on the field of the flying object intersect. An information storage medium characterized by performing processing to perform . A computer-readable information storage medium for generating a field-of-view image at a given viewpoint in an object space,
A determination processing means for performing processing for determining whether or not a flying object flying on a given field in the object space passes a given determination zone;
Marker display processing means for performing a process for displaying a marker that informs a determination reference point that has become a reference when the determination is made when the flying object passes through the determination zone;
As an image generation means for generating a visual field image including the image of the flying object,
Make the computer work,
The marker display processing means
Where the determination zone is defined by a given determination area on the field, the area where the determination area is projected onto the screen and the locus of the point where the flying object is projected onto the screen intersect Further, the information storage medium is characterized by performing a process of displaying the marker. In claim 5 or 6 ,
An information storage medium, wherein the flying object is a ball in a baseball game, the determination zone is a strike zone, and the determination area is a home base.

Images