JPH0981780A - Image composing method and three-dimensional game device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the image composing method and three-dimensional game device which improve hit rendering by an attack body and makes the position relation to an opponent easy to grasp. SOLUTION: A hit processing part 110 performs given hit processing when the attack body hits a moving body as an object to be attacked. An attack distance information arithmetic part 112 finds attack distance information on the attack body. An alteration part 114 alters the contents of the hit processing which is performed when the attack body hits according to the attack distance information, etc. For example, the attitude of the moving body is slanted to a firing point side, etc., at a short distance and slanted to the opposite side at an intermediate or long distance. At a long distance, rendering such as the bouncing of the attack body by the moving body is given.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image synthesizing method and a three-dimensional game machine for synthesizing a visual field image at a given viewpoint position.

[0002]

BACKGROUND ART A three-dimensional game device for forming a visual field image from a given viewpoint position in an object space, which is a virtual three-dimensional space, is conventionally known, and a player It is very popular as a person who can experience so-called virtual reality.

Now, as one of such three-dimensional game devices, a moving body operated by a player and an enemy operated by another player, a computer, or the like are used as bullets (cannonballs, missiles), laser beams, or the like. There is known a three-dimensional game device of a type that uses an attacking body to compete. In this type of three-dimensional game device, how to perform hit processing (shot processing) when a bullet or the like hits is a major technical issue.

However, in the conventional three-dimensional game apparatus, the power at the time of hitting a bullet is uniquely determined,
The positional relationship (distance, direction, etc.) between the player and the enemy was not reflected in the hit production of the bullet. That is, the bullet hit effect given to the player is always the same regardless of whether the enemy is attacked by a nearby enemy or an enemy distant from the distant enemy. Therefore, it is not possible to enhance the realism of the game. The expression of virtual reality was insufficient.

Further, the three-dimensional game device has an advantage that the sense of actually being in the three-dimensional space can be obtained as compared with the two-dimensional game device, and thus the interest of the game can be remarkably increased. On the other hand, there is a problem that it is difficult for the player to grasp the positional relationship between the player's own aircraft and the enemy in the three-dimensional space, which easily causes confusion. As one method of solving such a problem, a method of forming a radar display on the screen for notifying the positional relationship between the own aircraft and the enemy can be considered. However, even if the radar display is performed, some players do not pay much attention to the radar display and concentrate on only the main screen on which the enemy in front is displayed. Further, in a three-dimensional game device having no radar display function, the player must grasp the positional relationship between the player's own device and the enemy based on only the information obtained from the main screen. Therefore, how to inform the player of the positional relationship between the player's aircraft and the enemy based on the information obtained from the main screen is a major technical issue.

However, in the conventional game machine, the hit effect of the bullet is unique, and the same hit effect image is displayed on the main screen regardless of the positional relationship between the player's machine and the enemy. It was For this reason, the player cannot know the positional relationship between the player's own device and the enemy based on the hit effect image displayed on the main screen, and the above technical problem has not been achieved sufficiently.

The present invention has been made in view of the above conventional problems, and an object of the present invention is to improve the hit effect by an attacking body and to easily grasp the positional relationship with the enemy. A synthesis method and a three-dimensional game device are provided.

[0008]

In order to solve the above-mentioned problems, the present invention provides a given viewpoint position in an object space set by obtaining at least position information of a display object including a moving body and an attacking body. An image synthesizing method for synthesizing a field-of-view image in, including a hit processing step of performing given hit processing when the attacking body hits a moving body that is an attack target, the hit processing step comprising: And a step of changing the content of the hit processing performed when the attacking body hits, based on at least the attack distance information.

According to the present invention, the content of the hit processing is changed according to the size of the attack distance of the attacking body. That is, different hit processing is performed when the attack distance is, for example, a short distance, a medium distance, or a long distance. This makes it possible to improve hit production by an attacking body such as a bullet, a missile, or a laser beam, and it is possible to remarkably enhance the presence and virtual reality. It also makes it easier to know the distance to the enemy,
It is possible to improve operability. It should be noted that the attack distance in the present invention is various, for example, the moving distance of the attacking body (flight distance, etc.), the distance between the firing point of the attacking body (or the position of the enemy) and the position of the moving body (or hit position) Can be used.

In this case, according to the present invention, in the hit processing step, processing is performed to change the posture of the moving body when the attacking body hits the moving body, and in the changing step, the changing direction of the posture is changed. It is desirable to change it according to the attack distance information. In this way, if the direction of change in posture is changed according to the attack distance information, the player etc.
By looking at the direction of the posture change, the positional relationship with the enemy can be easily grasped without using a radar or the like.

Further, in the present invention, in the changing step, when the attack distance of the attacking body is short, it is desirable that the posture of the moving body is tilted toward the launching point side of the attacking body or the hitting position side of the attacking body. When the attack distance is short, by tilting the posture to the side near the launching point, it is possible to express that you are attacked from a short distance, improve the sense of presence, and easily understand the enemy's position. If the posture of the attacking body is tilted toward the launch point side, it becomes easier to grasp the positional relationship with the enemy. On the other hand, if the attacking body is tilted to the vicinity of the hit position (hit part), it is possible to perform a hit production more faithful to the real world.

Further, in the present invention, in the hit processing step, a processing of displaying a hit image near the hit position when the attacking body hits the moving body is performed, and in the changing step, the type of the hit image is set to the attacking state. It is desirable to change according to the distance information. For example, in the case of short range (effective range), while displaying an explosion image,
In the case of a long distance, a spark image is displayed, or the shape and color of the fragments of the attacking body are changed according to the distance, thereby improving the presence and facilitating the grasp of the enemy's position.

Further, in the present invention, in the changing step, when the attacking distance of the attacking body is long, the attacking body is rebounded by the moving body, and at the time of the rebounding, the object representing the attacking body is rebounded. You may make it switch to a dedicated object. By doing so, it is possible to represent the attacking body that is repelled by the moving body by reducing the power due to the flight at a long distance, and to increase the realism of the obtained image.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An optimum embodiment of the present invention will be described below with reference to the drawings. In the following description, a tank game in which a battle, which is one of the attacking bodies, is used to compete with an enemy tank will be mainly described as an example.

FIG. 1 shows an example of a functional block diagram of a three-dimensional game device capable of realizing the image synthesizing method of the present invention. Here, the operation unit 12 corresponds to a steering wheel, an accelerator, an attack button, etc. in the case of a tank game, and the operation information obtained by the operation unit 12 is the processing unit 100.
Is output to The processing unit 100 obtains at least position information of display objects including a moving body (tank or the like) and an attacking body (bullet, missile, laser beam, or the like) based on this operation information and a given program or the like, Performs operations such as setting the object space. The image synthesizing unit 200 performs an operation of synthesizing the visual field images viewed from a given viewpoint position in the set object space, and the obtained visual field images are displayed on the display unit 10.

FIG. 2 shows an example of such an object space. As shown in FIG. 2, in this object space, a plurality of objects representing display objects such as buildings 16a to 16d, walls 18a to 18c, and tanks 20 and 22 are arranged. Then, for example, when the player operates his (ally) tank 20 with a steering wheel, an accelerator, or the like, or the opponent player or the computer operates an enemy tank 22, the processing unit 100 displays the position and direction information of the tanks 20, 22. The calculation to be updated is performed in real time for each inter (for example, 1/60 second). As a result, the image composition unit 200 causes the tank 2
It is possible to synthesize a visual field image from the viewpoint position set at the position of 0 or the upper rear part of the tank 20.

In the present embodiment, when a bullet hits a tank, the hit processing section 110 shown in FIG. 1 performs given hit processing (ball hit effect). At this time, in this embodiment,
Attack distance information calculation unit 11 included in the hit processing unit 110
2 obtains the attack distance information of the bullet. And the changing unit 11
4 changes the hit processing performed by the hit processing unit 110 based on this attack distance information and the like.

For example, as shown in FIG.
The movement distance (flight distance, etc.) of the bullet 34 fired from is obtained as the attack distance, and it is determined whether this attack distance is a short distance (effective range), a medium distance, or a long distance. If it is a short distance, the short distance bullet hit processing shown in FIG. 3B is performed. That is, tank 20
The posture of is changed so as to incline toward the firing point 30 side. Also, brighter fragments (represented by an object consisting of one polygon) 40 etc. and explosion sprite (explosion image) 4
4 is displayed.

On the other hand, in the case of the medium distance, the bullet hit processing as shown in FIG. 3C is changed. That is, in this case, the attitude of the tank 20 is changed so as to incline in the direction opposite to that in FIG. Also, the hit image is changed from that of FIG. 3B, and the darker fragments 42 and the like and the spark sprite 46 are displayed.

Further, in the case of a long distance, as shown in FIG. 3 (D), the attitude of the tank 20 is changed so as to be inclined in the direction opposite to the firing point 30, and the spark sprite 46 is also changed.
Generate. Furthermore, the object of the bullet 34 is changed to a bounce-only object (for a bullet), and this is changed to a bullet 36
Display as.

When the moving distance is obtained, it is not always necessary to actually calculate the moving distance, and the processing can be performed by regarding the time required for moving (flying) the bullet 34 as the moving distance. Further, the moving distance may be obtained by integrating the velocity of the bullet 34 or integrating the moving distance of the bullet 34 for each inter.

As the attack distance, various ones other than the moving distance can be used as long as at least the distance relationship with the enemy can be reflected in the change of the hit processing. For example, the firing point 30 of the bullet 34 (the enemy It is also possible to use the distance between the position of the tank 22 and the like) and the position 32 of the tank 20 (which may be the hit position of the bullet) as the attack distance.

As shown in FIGS. 3B to 3D, when the tank 20 is tilted, only the vehicle body (body object) is tilted and the caterpillar (caterpillar object) is tilted in this embodiment. Absent.

4A, 4B to 6A, 6B
An example of the game screen (visual field image) obtained in this embodiment is shown in FIG. These are game screens that can be seen from the so-called third person viewpoint position (such as the viewpoint position behind the upper part of the tank).

FIGS. 4A and 4B are screens when hit by a bullet from an enemy at a short distance (effective range). In this case, first, as shown in FIG. 4 (A), a brighter bullet fragment 40 or the like representing the burst of the bullet is displayed. That is, fragment 4
0 etc. are scattered from the hit position. Here is the fragment 4
The reason why 0 is made brighter is to represent the fragments that are melted by the heat of the explosion. Next, the explosion sprite 44 is displayed as shown in FIG. In the case of a short distance, the explosive sprite 44 is displayed because the bullet is normally exploding due to the effective range. And FIG. 4 (A) and FIG.
As can be understood by comparing (B) with each other, the posture of the tank 20 inclines toward the firing point side of the bullet, that is, to the right side from FIG. 4 (A) to FIG. 4 (B). In the case of a short distance, the posture of the tank is changed in order to express how the vehicle body sinks in the direction of the enemy due to being hit by a nearby enemy. By making such an expression, it is possible to remarkably increase the sense of presence felt by the player, and it is possible to express an excellent virtual reality. Further, the player can recognize that the enemy is on the right side by the explosion sprite 44 being displayed on the right side, and can also recognize that the enemy is in the immediate vicinity by tilting the vehicle body to the right side. That is, by performing such bullet hit processing, the player can display the positional relationship between the player's own aircraft and the enemy without displaying radar, etc., or without changing the line of sight to radar display (screens other than radar display etc. ) Can be understood only by the display. Thereby, the operability of the three-dimensional game device can be significantly improved.

As shown in FIG. 4B, in this embodiment, when the own tank is damaged by an attack from an enemy or the like, a cracked image 48 is displayed on the screen. Then, the cracked image 48 increases (or becomes worse) as the damage amount of the own device increases. Therefore, the player does not shift his line of sight to the damage display,
By looking at the number of the cracked images 48 and the like, it is possible to recognize the damage of the own device. At this time, in this embodiment, since the armor strength of the tank is different depending on the place, the damage amount is set to be different depending on the hit position of the bullet.

FIGS. 5A and 5B are screens when hit by a bullet from an enemy at a medium distance. In this case, first, as shown in FIG. 5 (A), a darker fragment 42 or the like is displayed. The reason why the bullet fragment 42 is darkened here is that it is considered that the bullet does not explode and the bullet fragment does not melt because it is not within the effective range in this case. At this time, switching from the brighter fragment to the darker fragment is performed by switching the type of the fragment object representing the fragment, for example. Next, as shown in FIG. 5B, spark sprite 4
6 is displayed. Since the bullet does not explode in the case of medium distance, the explosion sprite is not displayed, and the spark sprite 46 indicating that the metals are violently hit is displayed. Then, as can be understood by comparing FIG. 5A and FIG. 5B, the posture of the tank 20 leans to the left side this time, unlike the case of the short distance. This makes it possible to express that the attack is from an enemy at a distance.

As described above, the tilt of the tank and the hit image (bullet fragments, explosion, spark sprite, etc.) according to the attack distance of the bullet
By differentiating the types, etc., the game expression can be made richer and the realism of the game can be increased. In addition, the player may see the spark sprite 46 or the like in the tank 20.
It can be recognized that the enemy is on the right side but not in the short range because the tank 20 is displayed on the right side and the tank 20 leans to the left side. Therefore, the player receives the attack, but can recognize that the player's aircraft is not within the effective range of the enemy. As a result, it is not necessary to immediately direct the player's aircraft to the attacking enemy side, or to perform an action such as escaping. For example, it is possible to concentrate only on the battle with another enemy tank 23 in front of the eyes. It is possible to make a judgment such as “good”.
That is, by recognizing the positional relationship (distance, direction, etc.) between the player's aircraft and the enemy using hit processing, the game operation can be significantly improved, and the player can perform various operations based on the information indicating the positional relationship. The game strategy of can be made, and the fun of the game can be improved significantly.

FIGS. 6A and 6B are screens when hit by a bullet from an enemy at a long distance. FIG. 6A shows a screen when the bullet 34 hits the tank 20. At this time, the band 34 of light (smoke) is attached to the bullet 34. When the bullet hits, a spark sprite 46 is displayed as shown in FIG. 6 (B). That is, also in this case, since the bullet does not explode as in the case of the medium distance, the spark sprite 46 showing a state where the metals are violently hit is displayed. In addition, the posture of the tank 20 leans to the left as in the case of the medium distance.

In this embodiment, as shown in FIG. 6 (B), the bullet is bounced after a hit in the case of a long distance. This is because the power of the bullet at the time of a hit is considered to be considerably reduced. The hit processing effect is similar between the medium distance and the long distance in that a spark polygon is generated and the tank leans to the opposite side of the enemy. Therefore, the player cannot judge from the hit processing effect whether it is a medium distance or a long distance. In view of this, in the present embodiment, the bullet is made to bounce as shown in FIG. 6B in the case of a long distance, thereby making the player recognize that the enemy is located at a long distance. Further, in this embodiment, in order to further improve the hit processing effect, at the time of bounce (when hit)
In addition, the object that represents the bullet is switched to a special object for bouncing. That is, unlike the bullet 34, the ricochet 36 does not have a band of light. The speed of the ricochet 36 is
It will be slower than the hit speed of (eg half). The ricochet 36 disappears after a given period of time.

As described above, in this embodiment, by changing the hit processing in accordance with the attack distance of the bullet, it is possible to enhance the game effect, the realism, and the virtual reality, and at the same time, the player can recognize the player's own machine and the enemy. The positional relationship of can be easily recognized, and the operability of the game can be improved.

Next, an example of the operation of the hit processor 110 will be briefly described with reference to the flowchart shown in FIG. First, a hit check is performed to determine whether or not a bullet has hit (step S1). When performing a hit check, for example, as shown in FIG. 8 (A), a hit box 50 of, for example, a rectangular parallelepiped having substantially the same size as the tank object and arranged and set in the same position and direction as the tank object is prepared. To do. If there is a hit point 56 between the hit box 50 and the bullet, it is determined that the bullet has hit.

When the bullet hits, the enemy tank that fired the bullet is specified, and the attack distance information of the bullet is obtained (step S2). In this embodiment, for example, the time required to move (fly) a bullet is regarded as the attack distance. Then, for example, it is determined whether the attack distance is near, medium, or long range (step S3). If the range is short, the process proceeds to step S4, if the range is medium, step S5, and if the range is long, the process proceeds to step S6. 3 (A) to (D) and the like are performed.

In this case, the tilt direction of the tank is determined as follows in this embodiment. That is, as shown in FIG. 8A, when the hit position 56 is in the range of −40 degrees to −140 degrees (the direction of the tank is 0 degree), the right direction (in the case of short range) or Tilt to the left (middle / long distance). When the hit position 56 is in the range of +40 degrees to -40 degrees, it is tilted forward (short distance) or backward (middle / long distance). The same applies to the case of +40 to +140 and +140 to −140 degrees. Of course, it is also possible to set the angle range more finely and to control the tilting direction of the tank more finely, for example, by tilting it obliquely to the right.

Further, in this embodiment, the explosion sprite is generated at the hit position 56, and the fragments are scattered from the hit position 56. Further, in the case of performing the ricochet process, the bullet is bounced from the hit position 56, for example, in an upward direction at a speed slower than that at the time of hit (for example, half speed).

The trajectory of the bullet is not limited to a straight line, but the direction may change due to wind or the like, and in a homing missile or the like, the direction changes so as to track an enemy. Furthermore, the trajectory of the bullet may draw a parabola due to gravity. Therefore, for example, when the trajectory of the bullet changes as shown in FIG. 8B, it is desirable to set the distance d shown in FIG. 8B as the attack distance of the bullet. In addition, in FIG. 8B, the firing point 52 is −40.
The hit position 56 is +4 although it is in the range of degrees to -140 degrees.
It is in the range of 0 to -40 degrees. Therefore, in this case, which direction the tank is tilted becomes a problem, but in the case of aiming for more accurate expression close to the real world, the front side or the rear side, that is, near the hit position of the bullet (hit part ) Side or the opposite side is desirable. On the other hand, in order to inform the player of the enemy's position more effectively, it is desirable to tilt the ball to the right or left side, that is, the firing point 52 side or the opposite side.

Next, an example of a detailed configuration of the processing unit 100 and the image synthesizing unit 200 will be described with reference to FIG. In this example, the processing unit 100 includes a movement information calculation unit 102, an object space setting unit 104, a space information storage unit 108, and a hit processing unit 110. Here, the movement information calculation unit 102
Calculates the movement information for each inter of a moving body such as a tank based on the operation information from the operation unit 12 and a given game program. In the spatial information storage unit 108,
As shown in FIG. 10, an object number OBi of an object representing a display object, position information (Xm, Ym, Zm) for specifying the arrangement of this object, and direction information (θm, φm, ρm) are stored. However, location information,
When only at least one of the direction information needs to be specified, only one of the directions may be stored. As shown in FIG. 11, position information (Xm, Ym, Zm), direction information (θ
m, φm, ρm) is the world coordinate system (XW, YW, Z
W) indicates the position and direction of the display object. For example, when the tank is tilted left and right, ρm is changed, and when tilted back and forth, φm is changed.

The hit processing section 110 performs a hit processing calculation based on, for example, the position information of the launch point 52 (enemy tank), the bullet, the own tank, etc. stored in the spatial information storage section 108. When the tank is tilted, for example, it takes about 30 frames to perform calculation for changing the direction information of the tank and update the position / direction information of the tank. However, it is also possible to prepare table data in which the motion data of the tank at the time of attitude change is stored in association with the attitude change direction, and to perform the attitude change process of the tank using the motion data read from this table data. When the bullet fragment object is generated by the hit, the hit processing unit 110 operates the contents of the spatial information storage unit 108 so that the bullet fragment object is displayed. Further, in the case of generating explosive sprites and spark sprites, the sprite image generation unit 260 generates such sprites.
Give instructions to Further, when the object representing the bullet is switched to the object for rebounding, for example, the object number shown in FIG. 10 is changed to the one for designating the object for rebounding.

The space information stored in the space information storage unit 108 is read by the object space setting unit 104. In this case, the spatial information storage unit 108 stores the spatial information in the frame immediately preceding the frame. Then, in the object space setting unit 104,
The spatial information in the frame is obtained based on the read spatial information and the movement information from the movement information calculation unit 102. Such processing is not necessary for a stationary object, because there is no such movement information and the spatial information does not change.

The image composition unit 200 is a three-dimensional operation unit 21.
0, a drawing unit 230, and a sprite image generation unit 260. The three-dimensional calculation unit 210 performs three-dimensional calculation such as coordinate conversion and perspective projection conversion, and includes, for example, an object image information storage unit 212. The object image information storage unit 212 stores image information of an object represented by a combination of polygons, etc. This object image information is read based on, for example, the object number included in the above-mentioned space information. Therefore,
When expressing a ricochet, a normal bullet object (Fig. 6
(See (A)) and a bullet object dedicated to rebound (see FIG. 6).
It is only necessary to prepare two types of object image information (see (B)) and switch the object number after a hit.

The sprite image generator 260 is for forming explosion sprites, spark sprites, and the like. The sprite image generation unit 260 performs a pseudo three-dimensional calculation such as enlarging / reducing the size of the sprite display based on the distance from the viewpoint, etc., thereby displaying an explosive image with a perspective. Is possible.

The drawing unit 230 performs a drawing process of a polygon that has been subjected to a three-dimensional calculation process, and the visual field image formed by this drawing process is output to the display unit 10. And when performing texture mapping etc.,
The drawing unit 230 performs a given texture calculation using a texture information storage unit or the like, and when performing Gouraud shading, phon shading, or the like, the drawing unit 230
Performs brightness calculation processing.

The present embodiment described above can be implemented by using any hardware for home use and business use. FIG. 12 is a diagram showing an example of the hardware configuration of a three-dimensional game device of the type currently widely used.
In the three-dimensional game device shown in the figure, the CPU 1000, R
OM1002, RAM1004, information storage medium 100
6, voice synthesis IC 1008, image synthesis IC 1010, I
/ O ports 1012 and 1014 are the system bus 101
6 are connected to each other so that data can be transmitted and received. The image synthesis IC 1010 has a display 101.
8 is connected, a speaker 1020 is connected to the voice synthesis IC 1008, a control device 1022 is connected to the I / O port 1012, and an I / O port 1014.
A communication device 1024 is connected to the.

The information storage medium 1006 mainly stores a game program, image information for expressing a display object, and a CD-ROM, an IC card, an FD or the like is used. Further, the ROM 1002 stores initialization information of the game apparatus body and the like. However, the information storage medium 100
In a three-dimensional game device in which 6 is not used, the game program, image information, etc. are stored in the ROM 1002.

The control device 1022 is a device for inputting the result of the judgment made by the player in accordance with the progress of the game to the game device main body, and is of a pad type widely used at home or for business use. Examples include steering wheels and accelerators used in drive games.

The game program stored in the information storage medium 1006, the system program stored in the ROM 1002, or the control device 10 is stored.
According to a signal or the like input by the CPU 22, the CPU 1
000 controls the entire apparatus and performs various data processing. The RAM 1004 is a storage unit used as a work area of the CPU 1000, and the information storage medium 100.
6 or predetermined contents of the ROM 1002, or CPU
The calculation result of 1000 and the like are stored.

Furthermore, this type of game device has a voice synthesis I
A C1008 and an image synthesizing IC 1010 are provided so that suitable output of voice and images can be performed. The voice synthesis IC 1008 is an information storage medium 1006 or RO.
It is an integrated circuit that synthesizes sound effects, game music, and the like based on the information stored in M1002, and the synthesized music and the like is output by the speaker 1020. The image composition IC 1010 includes a RAM 1004 and a ROM 100.
2. An integrated circuit that synthesizes pixel information to be output to the display 1018 based on image information sent from the information storage medium 1006 or the like. The display 1018
As a so-called head mounted display (HM
It is also possible to use what is called D).

The communication device 1024 exchanges various information used inside the game device with the outside, and is connected to another game device to send and receive predetermined information according to a game program. It is used to send and receive information such as game programs via a communication line.

The processing performed by the processing section 100, the image synthesizing section 200, the hit processing section 110, the attack distance information calculating section 112, the changing section 114, etc. shown in FIGS. 1 and 9 is the processing shown in the flowchart of FIG. It is realized by an information storage medium 1006 that stores control software for performing the above, a CPU 1000 that operates according to the control software, an image combining IC, and the like. The spatial information storage unit 10 shown in FIG.
8, the object image information storage unit 212 and the like, RAM1
004, ROM 1002 and the like. The processing performed by the image synthesis IC 1010 or the like is performed by the CPU 1
000 or a general-purpose DSP or the like.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

For example, in the above-mentioned embodiment, the case where the attacking body is mainly a shell has been described. However, in addition to this, various objects such as a bullet, a missile, a torpedo, a laser beam, and a gravity cannon are also included. Is included. Further, the moving body is not limited to a tank and the like, but includes various objects such as a robot, a car, a ship, a submarine, an airplane, a spaceship, and a human in an RPG game. Moreover, not only moving bodies such as tanks but also, for example, cannons and laser cannons arranged on the map are included as means for attacking the moving bodies.

The hit processing of the present invention includes all kinds of processing other than those described in the above embodiment. For example, when the posture of the moving body is changed, the virtual reality can be further enhanced by changing the inclination of the seat or the like on which the player sits instead of changing the projected image of the moving body. Also, various hit images can be considered other than the explosion sprite, the spark sprite, the fragments of the attacking body, and the like.

Further, the present invention can be applied not only to a game device for business use but also to, for example, a game device for home use, a flight simulator, a driving simulator used in a school, etc. Further, it can be applied to a large-sized attraction device in which many players participate.

The processing performed by the processing unit, the image synthesizing unit, and the like described in the present embodiment is merely an example in the present embodiment, and the image synthesizing process and the like in the present invention are not limited thereto. Not a thing.

The present invention can also be applied to the case where an object is not represented by a combination of polygons.

[0056]

[Brief description of drawings]

FIG. 1 is an example of a functional block diagram of an embodiment.

FIG. 2 is a diagram showing an example of an object space (virtual three-dimensional space).

FIG. 3A to FIG. 3D are diagrams for explaining the principle of the present embodiment.

FIG. 4A and FIG. 4B are examples of game images obtained by the present embodiment when the distance is short.

5 (A) and 5 (B) are examples of game images obtained by this embodiment when the distance is medium.

6 (A) and 6 (B) are examples of game images obtained by this embodiment in the case of a long distance.

FIG. 7 is a flowchart for explaining the operation of this embodiment.

8A and 8B are diagrams for explaining the hit processing.

FIG. 9 is an example of a detailed configuration of a functional block diagram of the present embodiment.

FIG. 10 is a diagram illustrating an example of spatial information.

FIG. 11 is a diagram illustrating an example of spatial information.

FIG. 12 is a diagram illustrating an example of a hardware configuration that implements the present embodiment.

[Explanation of symbols]

 10 display unit 12 operation unit 100 processing unit 102 movement information calculation unit 104 object space setting unit 108 spatial information storage unit 110 hit processing unit 112 attack distance information calculation unit 114 changing unit 200 image synthesis unit 210 three-dimensional calculation unit 212 object image information Storage unit 230 Drawing unit 260 Sprite image generation unit 260

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location H04N 7/18 G06F 15/62 340K

Claims (8)

[Claims] 1. An image synthesizing method for synthesizing a visual field image at a given viewpoint position in an object space set by obtaining at least positional information of a display object including a moving body and an attacking body. When the attacking body hits the moving body, a hit processing step for performing a given hit processing is included, and the hit processing step includes a step of obtaining information on an attacking distance of the attacking body, and at least the attacking distance information. And a changing step for changing the content of the hit processing performed when the attacking body hits. 2. The hit processing step according to claim 1, wherein processing is performed to change the posture of the moving body when the attacking body hits the moving body, and the changing direction of the posture is changed in the changing step. An image synthesizing method characterized by changing the attack distance information. 3. The method according to claim 2, wherein in the changing step, when the attack distance of the attacking body is short, the posture of the moving body is tilted to the launching point side of the attacking body or the hitting position side of the attacking body. Characteristic image composition method. 4. The hit processing step according to any one of claims 1 to 3, wherein a hit image is displayed near a hit position when an attacking body hits a moving body, and in the changing step, the hit image is displayed. An image synthesizing method, characterized in that the type of hit image is changed according to the attack distance information. 5. The object according to claim 4, wherein in the changing step, when the attacking distance of the attacking body is long, the attacking body is rebounded by the moving body, and at the time of the rebounding, an object representing the attacking body. An image synthesizing method characterized in that the object is switched to a bounce-only object. 6. A three-dimensional game device for synthesizing a visual field image at a given viewpoint position in an object space set by obtaining at least positional information of a display object including a moving body and an attacking body. When the attacking body hits the target moving body, the hitting processing means includes a hit processing means for performing a given hit processing, the hit processing means includes: means for obtaining information on the attacking distance of the attacking body; A three-dimensional game device including: a changing unit that changes the content of the hit processing performed when an attacking body hits, based at least. 7. The hit processing means according to claim 6, wherein the hit processing means performs processing to change a posture of the moving body when the attacking body hits the moving body, and the changing means changes the posture changing direction to the changing direction. A three-dimensional game device characterized by being changed according to attack distance information. 8. The hit processing means according to claim 6, wherein the hit processing means performs processing of displaying a hit image near the hit position when the attacking body hits the moving body, and the changing means A three-dimensional game device, wherein the type of hit image is changed according to the attack distance information.