JP4763939B2 - Program, information processing apparatus, data generation method, information storage medium, and game apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to background object necessity data relating to drawing of a background object in a game image. Program to make computer generate About.
[0002]
[Prior art]
When setting a game space, which is a virtual three-dimensional space, in a game device, by placing a bounding box that surrounds the entire object before actually placing the object, There is a technique for reducing the processing load for arrangement and drawing with respect to an object that is hidden and cannot be seen by determining interference.
[0003]
FIG. 12 is a diagram showing an example in which two objects are arranged in the game space. In FIG. 12, an object 121a and an object 122a located behind the object 121a when viewed from the virtual camera exist in the game space. In this case, since the bounding box 122b of the object 122a is hidden by the bounding box 121b of the object 121a when viewed from the virtual camera 1200, the object 122a is not drawn when the game space is drawn as a two-dimensional image.
[0004]
As described above, when rendering the game space as a two-dimensional image viewed from the virtual camera as the rendering process, the above-described method is to process the hidden object using the bounding box surrounding the entire object.
[0005]
[Problems to be solved by the invention]
However, there are cases where a hidden object cannot be accurately processed, for example, when an object with protrusions is surrounded by a rough bounding box.
[0006]
FIG. 13 is a diagram showing an example in which an object 131a and an object 132a are arranged in the game space. In FIG. 13, the object 132a exists behind the object 131a, but when viewed from the virtual camera 1300, the bounding box 132b is hidden by the bounding box 131b, and therefore the object 132a is not drawn.
[0007]
However, in reality, a part of the object 132a behind the object 131a should be visible from the virtual camera 1300. To be precise, the object 132a must be drawn as an object partially hidden by the object 131a.
[0008]
In this way, if an object with protrusions is surrounded by a rough bounding box, the object behind it cannot be drawn accurately, so the hidden object is divided by dividing the bounding box according to the protrusion of the object, etc. Needed to be processed accurately.
[0009]
In particular, the background object may not be the target of the attack or the player may not pay attention during the game, so that the drawing processing load is reduced by being surrounded by a coarser bounding box. However, a more realistic image can be obtained by faithfully (accurately) rendering the background object.
[0010]
An object of the present invention is to accurately draw a background object and reduce processing related to the background object.
[0011]
[Means for Solving the Problems]
To solve the above problems The first of According to the invention, setting means for setting a game space by arranging a virtual camera and a background object at a predetermined position with respect to an apparatus having the processor by calculation and control by the processor (for example, the background of FIG. 5). A space setting unit 521) and a determination unit that projects and converts each background object based on the virtual camera and determines whether or not the background object is drawn (for example, background object necessity data creation in FIG. 5) Section 523) and storage means (for example, temporary storage section 54 in FIG. 5) for storing the determination result by the determination means as background object necessity data (for example, background object necessity data 541 in FIG. 5). Background object necessity data generation information for making the setting means, the determination means, and the storage means, It is sequentially function for each frame, background object necessity data generation information, which comprises information to be accumulated and stored in the storage means a determination result of said determining means for each frame Is .
[0012]
Also, 6th According to the invention, a virtual camera and a background object are arranged at a predetermined position, a setting means for setting a game space, and each background object is projected and converted based on the virtual camera, and the background object is drawn. An information processing apparatus comprising: a determination unit that determines whether or not to be performed; and a storage unit that stores a determination result of the determination unit as background object necessity data, the setting unit, the determination unit, An information processing apparatus that causes the storage unit to function sequentially for each frame and accumulates and stores the determination result of the determination unit for each frame in the storage unit. Is .
[0013]
First Or 6th According to the invention, it is determined whether the background object placed in the game space is drawn or not drawn for each frame, and the background object is hidden by determining whether or not the background object is placed during the game based on the determination. Since object processing can be reduced, the game space setting processing time can be shortened. Also, hidden objects can be processed accurately.
[0014]
Second According to the present invention, color setting means (for example, the background space setting unit 521 in FIG. 5) for setting a unique color for each background object for a device having the processor by calculation and control by the processor, A virtual camera and a background object are arranged at a predetermined position to set a game space, and an image of the game space viewed from the virtual camera is generated, and the color set by the color setting unit is used. Based on the color information included in the image generated by the background image generation unit (for example, the background image generation unit 522 in FIG. 5) for drawing the corresponding background object and the image generated by the background image generation unit, the background object in the image is displayed. Determination means for determining necessity and the result determined by the determination means are stored as background object necessity data Information on the background object necessary for causing the storage means to function, wherein the setting means, the background image generation means, the determination means, and the storage means function sequentially for each frame. And the background object necessity data generation information including information for accumulating and storing the determination result of the determination unit for each frame in the storage unit Is .
[0015]
Also, 7th The invention includes a color setting means for setting a unique color for each background object, a setting means for setting a game space by arranging a virtual camera and a background object at a predetermined position, and the virtual camera. A background image generating unit that generates an image of the viewed game space and draws a corresponding background object with the color set by the color setting unit, and color information included in the image generated by the background image generating unit An information processing apparatus comprising: a determination unit that determines whether or not a background object is necessary in the image; and a storage unit that stores a result determined by the determination unit as background object necessity data, The setting unit, the background image generation unit, the determination unit, and the storage unit are sequentially operated for each frame. The information processing apparatus for causing said determining means determination result accumulation stored in the storage means for each frame Is .
[0016]
this Second Or 7th According to this invention, a unique color is set for each background object, a game space is set and a frame image is generated, and then whether or not the background object is drawn is determined from the color information of the frame buffer. Therefore, the determination process can be simply performed using a conventional process such as rendering. Moreover, since the hidden object process can be reduced by using the determination result, the game space setting process time can be shortened. Also, the hidden object can be accurately drawn.
[0017]
Of course, depending on the device with the processor, First Or Second invention Background object necessity data generation information (for example, background object necessity data creation program 551 in FIG. 5) is generated. You may comprise as 3rd invention. In that case Also, First , Second The effects of the invention are provided.
[0018]
4th According to the present invention, a game image is generated by moving a virtual camera according to a predetermined path in a virtual space to the device by calculation and control by a processor and generating an image of the virtual space viewed from the virtual camera. Game information for generating Third invention Background object necessity data, information for causing the device to function camera placement means (for example, the game calculation unit 921 in FIG. 9) for placing a virtual camera at a predetermined position for each frame, and 1 For each frame, background object placement means for deciding whether or not to place a background object based on the background object necessity data and placing a background object at a predetermined position (for example, the game calculation unit 921 in FIG. 9). And information for causing the device to function as game information Is .
[0019]
Also, 8th The invention is a game device that generates a game image by moving a virtual camera according to a predetermined path in a virtual space and generating an image of the virtual space viewed from the virtual camera, Third invention Storage means for storing background object necessity data (for example, storage medium 12 in FIG. 9), camera placement means for placing a virtual camera at a predetermined position for each frame, and for each frame, A game device comprising: background object placement means for deciding whether or not to place a background object based on background object necessity data and placing a background object at a predetermined position Is .
[0020]
this 4th or 8th According to the invention of Third invention By using the background object necessity data, it is possible to reduce the hidden object processing of each background object, so that it is possible to shorten the game space setting processing time. Also, hidden objects can be processed accurately.
[0021]
5th The invention of 1st invention Background object necessity data generation information, Second invention Background object necessity data generation information, Third invention Background object necessity data, and 4th invention Information storage medium for storing at least one of game information Is .
[0022]
this 5th According to the invention, it is possible to reduce the hidden object processing of the background object during the execution of the game and realize an information storage medium storing information for accurately drawing the hidden object.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment to which the present invention is applied will be described with reference to the drawings. The present invention is applied to a game in which a virtual camera moves along a predetermined route in a game space such as a rail shooting game. In the present embodiment, the game space is configured by arranging a background object and a target object. The background object and the target object are collectively called an object. The target object is an object that is a target of attack or the like in the game.
[0024]
[Overview]
FIG. 1 is a diagram for explaining the outline of the present invention. In realizing the present invention, an information processing apparatus 11, a storage medium 12, and a game apparatus 13 are used as shown in FIG.
[0025]
The information processing apparatus 11 is a computer such as a personal computer. Although details will be described later, a game space is set for each frame (for example, 1/60 second), a background object is arranged, and the background object is actually drawn. It is determined whether or not to be performed, and the determination result is stored in the storage medium 12. The storage medium 12 is hardware such as a CD-ROM or DVD that includes game information.
[0026]
The game device 13 is a device that executes a game according to game information stored in the storage medium 12. While the game is being executed, an object is placed and set in the game space. For the background object, the placement is determined based on the result of determining whether or not drawing is stored in the storage medium 12.
[0027]
[Information processing device]
Next, the configuration and operation of the information processing apparatus 11 will be described. FIG. 2 is a diagram showing an example of a background object constituting the game space. Each background object is set with a number and a unique color. Here, as an example, the number assigned to the background object (hereinafter referred to as “background object number”) is “001” for the background object 21, “002” for the background object 22, “003” for the background object 23, and the background. The object 24 is “004”.
[0028]
As a method for setting the color of the background object (hereinafter referred to as “background object color”), the calculation formula “background object color = constant−background object number” is used. Here, the constant uses, for example, hexadecimal “FFFFFF” or the like, and uses data arranged in RGB by 8 bits from the upper digit.
[0029]
FIG. 3 is a diagram in which the background object of FIG. 2 is arranged for each frame based on the arrangement position of the virtual camera in the game space set by the game information stored in the storage medium 12. Here, the information processing apparatus 11 arranges only the background object without arranging the target object. 3A is the first frame, FIG. 3B is the second frame, and FIG. 3C is the third frame.
[0030]
As the virtual camera moves, the background object placement position moves from the first frame to the third frame. The game space is rendered and image data is written to the frame buffer. However, at the time of rendering processing, for example, color change processing such as shading and luminance calculation determined based on the intensity and direction of light from the light source is not performed.
[0031]
Here, in the first frame, since there is no background object positioned so as to be entirely hidden by another background object, all the background objects are drawn. The information processing apparatus 11 determines whether or not each background object needs to be drawn from the color information in the frame buffer. Details of the determination method will be described later. Similar processing is performed for the second frame.
[0032]
However, in the third frame, the entire background objects 22 and 23 are arranged so as to be hidden behind the background object 21 depending on the position of the virtual camera. Therefore, the two background objects 22 and 23 are not drawn. In this case, since the color information of the background objects 22 and 23 is not stored in the frame buffer, the information processing apparatus 11 determines that the two background objects are not drawn in the third frame. The above processing is performed for all frames.
[0033]
FIG. 4 is a diagram schematically illustrating an example of data stored in the frame buffer. In FIG. 4, one divided grid represents one pixel. The frame buffer stores the color information of the arranged object for each pixel. As shown in FIG. 2, the color of the background object is set with a unique color, so that it is possible to determine whether each background object is drawn or not by examining the color information in the frame buffer.
[0034]
As a determination method, a calculation formula “background object number = constant−background object color” is used for each pixel. The constant is the same value as the constant used in the calculation formula for setting the background object color. That is, according to the above example, the hexadecimal number is “FFFFFF”.
[0035]
Since FIG. 4 shows that the color information set for the background objects 21, 23 and 24 is stored in the frame buffer, it is determined that the three background objects need to be drawn in the frame. Is done. However, since the color information set in the background object 22 is not stored in the frame buffer, it is determined that the background object 22 does not need to be drawn in this frame.
[0036]
FIG. 5 is a diagram showing an example of functional blocks of the information processing apparatus 11 to which the present invention is applied. The information processing apparatus 11 includes an operation unit 51, a processing unit 52, a display unit 53, a temporary storage unit 54, and a storage unit 55.
[0037]
The operation unit 51 includes, for example, a keyboard and buttons, and operation data is input by an operator. When a keyboard or the like is pressed, an operation signal is output to the processing unit 52.
[0038]
The processing unit 52 executes a background object necessity data creation program 551 and the like stored in the storage unit 55 in accordance with a signal input from the operation unit 31, and arranges a background object and a virtual camera in the game space. In addition, an image viewed from the virtual camera is generated, a process of determining whether or not a background object is drawn is performed, and the processing result is stored in the temporary storage unit 54 and displayed on the display unit 53.
[0039]
The processing unit 52 includes a background space setting unit 521, a background image generation unit 522, and a background object necessity data creation unit 523. The background space setting unit 521 sets the background object number and color for each background object stored in the background object data 561 stored in the storage unit 55, and sets the placement position of the virtual camera and the background object in the game space. Perform the process.
[0040]
The background image generation unit 522 generates an image of the game space based on the virtual camera set by the background space setting unit 521. Here, in the game space, for example, there is no background image such as a landscape behind, and only a background object is arranged. Then, while performing hidden surface processing using a Z buffer or the like on the arranged background object, processing such as perspective projection conversion is performed, and rendering processing is executed. Further, the background object to be drawn has only the unique color given by the background space setting unit 521, and does not perform color change processing such as shading or luminance calculation. The generated image is written in the frame buffer as image data.
[0041]
When image data for one frame is written into the frame buffer in the background image generation unit 522, the background object necessity data creation unit 523 reads the color information of the frame buffer and determines the drawn background object. The determination result is stored in the background object necessity data 541 of the temporary storage unit 54.
[0042]
The display unit 53 includes, for example, a CRT (Cathode Ray Tube) or an LCD (Liquid Crystal Display), and displays data necessary for the operation of the processing unit 52, processing results, and the like.
[0043]
The temporary storage unit 54 is configured by a RAM (Random Access Memory) or the like, and stores background object necessity data 541. The background object necessity data 541 stores the background object necessity data created by the background object necessity data creating unit 523. It is also used as a work area in the execution of the processing unit 52.
[0044]
The storage unit 55 is realized by hardware such as a CD-ROM or a hard disk, and stores a background object necessity data creation program 551 and object data 560. The background object necessity data creation program 551 is a program for determining whether the background object placed in the game space is drawn or not drawn for each frame, and is read and executed by the processing unit 52 in response to a signal from the operation unit 51. The background object data 561 included in the object data 560 stores data of background objects arranged in the game space.
[0045]
FIG. 6 is a diagram showing the operation of the background object necessity data creation process. When the processing unit 52 reads the background object necessity data creation program 551, the background object necessity data creation process is executed.
[0046]
First, the background space setting unit 521 reads the background object data 561, sets the background object number (step S61), and then sets the background object color (step S62).
[0047]
Next, the background space setting unit 521 substitutes “1” for the variable n (step S63), and sets the game space in the nth frame including the background object and the placement position of the virtual camera (step S64). Then, the background image generation unit 522 performs a rendering process for the created created game space (step S65), and writes color information in the frame buffer based on the generated two-dimensional image (step S66).
[0048]
Next, the background object necessity data creation unit 523 determines a background object to be drawn from the color information stored in the frame buffer (step S67). Then, the determination result is stored in the background object necessity data 541.
[0049]
Subsequently, it is determined whether or not the processed frame is the final frame (step S68). If the processing has not been completed for all the frames (step S68: No), the background space setting unit 521 adds “1” to the variable n in the storage unit (step S69), and proceeds to step S64. When the process is completed for all frames (step S68: Yes), the processing unit 52 ends the process.
[0050]
FIG. 7 is a diagram showing the configuration of the background object necessity data 541 created by executing the background object necessity data creation program 551. For all background objects, drawing or non-drawing information is stored for each frame. Here, for example, drawing / non-drawing information may be stored using a flag using “1” or “0”.
[0051]
In the determination of drawing or non-drawing of the background object in step S67, for example, when the number of drawing pixels of a certain background object is equal to or less than a predetermined number of pixels, the background object may be determined as non-drawing. Although the accuracy of drawing a hidden object decreases as the reference number of pixels increases, the display of a background object with a small number of drawn pixels can be omitted. it can.
[0052]
[Game device]
Next, the configuration and operation of the game apparatus 13 will be described. FIG. 8 is a diagram illustrating first to third frames in which objects are arranged based on game information stored in the storage medium 12. 8 (a) is the first frame, FIG. 8 (b) is the second frame, FIG. 8 (c) is the third frame, and corresponds to the frames shown in FIGS. 3 (a), (b) and (c). To do. The target object 81 is an object that freely moves in the game space. In the game apparatus 13, the target object 81 is also arranged in the game space.
[0053]
When setting the game space in one frame, only the background object to be drawn is arranged for the background object based on the background object necessity data 541 created by the information processing apparatus 11. In other words, according to the background object necessity data 541, since all the background objects 21 to 24 are stored in the first frame and the second frame, they are stored. Since 22 and 23 are stored as non-drawing, the placement processing in the game space is not performed.
[0054]
FIG. 9 is a diagram showing an example of functional blocks of the game apparatus 13 to which the present invention is applied. The functional block of the game device includes an operation unit 91, a processing unit 92, a display unit 93, and a storage medium 12. The display unit 93 has the same function as the functional block shown in FIG.
[0055]
The operation unit 91 is configured by buttons, levers, and the like for the player to input instructions for character operations and the like in the game. The input signal is output to the processing unit 92.
[0056]
The processing unit 92 includes a game calculation unit 921 and an image generation unit 922. Based on the signal from the operation unit 91 and the game program 941 stored in the storage medium 12, the game calculation unit 921 sets an object arrangement position and a virtual camera in the game space, and performs light source processing and shading processing. Here, in the arrangement of the background object, the background object necessity data 942 is read, and only the background object to be drawn is arranged.
[0057]
The image generation unit 922 performs rendering processing as a two-dimensional image when the game space set by the game calculation unit 921 is viewed from the virtual camera.
[0058]
The storage medium 12 is realized by hardware such as a CD-ROM or a hard disk, and stores game programs 941, object data 950, and background object necessity data 942 as game information 940. The game program 941 includes a program related to game execution. The object data 950 includes background object data 951 and target object data 952, and stores model data, image data, and the like of objects to be displayed during game execution. The background object necessity data 942 stores background object necessity data 541 created by executing the background object necessity creation program 551.
[0059]
FIG. 10 is a diagram illustrating the operation of the game apparatus 13. First, the game calculation unit 921 sets a game space related to the frame, including the arrangement position of the object and the setting of the virtual camera (step S101). Here, in the background object, the background object necessity data 942 is read, and only the background object to be drawn is set.
[0060]
Then, the game space is converted into the viewpoint coordinate system of the virtual camera by geometry processing such as perspective projection conversion. (Step S102). Next, the image generation unit 922 draws and colors an object based on the determined position coordinate of the viewpoint coordinate system, and generates an image as a two-dimensional image of the game space viewed from the virtual camera by rendering processing (step S103). .
[0061]
Subsequently, the generated image data is written into the frame buffer (step S104), and the processing related to image generation for one frame is ended.
[0062]
As described above, in the case of a game in which a virtual camera moves in a game space according to a predetermined route, such as a rail shooting game, it is determined in advance whether a background object needs to be arranged for each frame, and the result is used. By setting the game space, it is possible to place and set only the background objects that need to be drawn during the game. Therefore, the background object drawing process can be reduced, leading to a reduction in processing time.
[0063]
FIG. 11 is a diagram illustrating an example of a hardware configuration of an information processing device and a game device to which the present embodiment is applied. Since the hardware configurations of the information processing apparatus and the game apparatus are almost the same, both apparatuses will be described simultaneously with reference to FIG.
[0064]
The hardware shown in the figure includes a CPU (Central Processing Unit) 111, a ROM (Read Only Memory) 112, a RAM 113, an information storage medium 114, an image generation IC 115, a sound generation IC 116, and I / O ports 117 and 118. Are connected by a system bus 119. The display device 120 is connected to the image generation IC 115, the speaker 121 is connected to the sound generation IC 116, the control device 122 is connected to the I / O port 117, and the communication device 123 is connected to the I / O port 118.
[0065]
The CPU 111 performs control of the entire apparatus and various data processing according to a program stored in the information storage medium 114, a signal input by the control apparatus, and the like. The processing unit 52 in FIG. 5 and the processing unit 92 in FIG. 9 correspond to this.
[0066]
The ROM 112 stores a system program including initialization information of the apparatus main body, and the storage unit 55 in FIG. 5 corresponds to this. The RAM 113 is a storage means used as a work area of the CPU 111, and temporarily stores various programs and data in the information storage medium 114 and the ROM 112, calculation results of the CPU 111, and the like. The temporary storage unit 54 in FIG. 5 corresponds to this.
[0067]
The information storage medium 114 is constituted by a CD-ROM, hard disk, DVD, or the like, and stores programs, image data, sound data, game data, and the like necessary for the operation of the apparatus. The storage medium 12 in FIG. 1 corresponds to this.
[0068]
The image generation IC 115 generates an image to be displayed on the display device 120 based on image data stored in the ROM 112, RAM 113, and information storage medium 114 under the control of the CPU 111. The display device 120 is a device that displays an electrical signal such as a CRT or LCD as a visible image. The display unit 53 in FIG. 5 and the display unit 93 in FIG. 9 correspond to this.
[0069]
The sound reproduction IC 116 generates BGM (Back Ground Music) and sound effects based on information stored in the ROM 112 and the information storage medium 114 under the control of the CPU 111. The speaker 121 outputs the sound generated by the sound reproduction IC 116.
[0070]
The I / O ports 117 and 118 are circuits for electrically connecting the present apparatus and an external apparatus, and an I / O port conforming to the standard of the external apparatus is installed. The control device 122 is configured by a keyboard, buttons, levers, and the like, and an instruction signal by an operator's operation is output to the CPU 111 via the I / O port 117. The operation unit 51 in FIG. 5 and the operation unit 91 in FIG. 9 correspond to this. The communication device 123 is a circuit for transmitting / receiving various information stored in the device to / from an external device.
[0071]
Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention. For example, in the above embodiment, the RGB value of the frame buffer has been described as being used, but the alpha channel of the frame buffer may be used. Specifically, for example, in the information processing apparatus 11, the color given to the background object is RGBA, the original background object color is given for RGB, and A (alpha channel) specific information for each background object, for example, The object number may be set, and whether or not the background object is drawn may be determined based on the alpha channel in the frame buffer as a result of rendering the object number.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining the outline of the present invention.
FIG. 2 is a diagram showing an example of a background object constituting a game space.
FIG. 3 is a diagram in which background objects are arranged in a game space.
FIG. 4 is a diagram illustrating an example of a frame buffer.
FIG. 5 is a diagram showing functional blocks of the information processing apparatus.
FIG. 6 is a flowchart showing the operation of background object necessity data creation processing;
FIG. 7 is a diagram showing a data configuration of background object necessity data.
FIG. 8 is a diagram in which objects are arranged in a game space.
FIG. 9 is a diagram showing functional blocks of the game device.
FIG. 10 shows an operation of the game device.
FIG. 11 is a diagram illustrating a hardware configuration of an information processing device and a game device.
FIG. 12 is a diagram for explaining a conventional technique.
FIG. 13 is a diagram for explaining a conventional technique.
[Explanation of symbols]
11 Information processing device
12 storage media
13 Game devices
51 Operation unit
52 processor
521 Background space setting section
522 Background image generation unit
523 Background Object Necessity Data Creation Unit
53 Display section
54 Temporary storage
541 Background object necessity data
55
551 Background Object Necessity Data Creation Program
560 object data
561 Background object data

Claims (8)

Background object necessity data used when executing a game in which a virtual camera moves along a predetermined path in a game space in which a target object and a background object that can be attack targets are arranged, and attacks the target object is computerized A program for generating
Setting means for setting a virtual three-dimensional space in which the background object is arranged without arranging the target object ;
For each given unit of time, by drawing the virtual three-dimensional space based on the virtual camera is moved in accordance with the route, determining means for determining necessity of drawing for each of the background object,
Storage control means for storing a determination result of the determination means for each given unit time in a storage unit as background object necessity data ;
A program for causing the computer to function as Further the computer to function as the color setting means for setting a unique color for each of the background object,
The determination unit has a background image generation unit that draws a corresponding background object with the color set by the color setting unit, and based on color information included in the image generated by the background image generation unit, Causing the computer to function as to determine whether a background object is necessary in the image ;
A program according to claim 1 for . The determination means determines that drawing is unnecessary for each of the background objects when the number of drawing pixels of the background object is equal to or less than a predetermined number of pixels determined to determine that the background object has a small number of drawing pixels. The program according to claim 1 or 2, for causing the computer to function as described above. Generates background object necessity data to be used when a virtual camera moves along a predetermined path in a game space in which target objects and background objects that can be attack targets are arranged and attacks the target objects. An information processing apparatus for performing
Setting means for setting a virtual three-dimensional space in which the background object is arranged without arranging the target object ;
For each given unit of time, by drawing the virtual three-dimensional space based on the virtual camera is moved in accordance with the route, judging means for judging necessity of drawing for each of the background object,
Storage control means for storing a determination result of the determination means for each given unit time in a storage unit as background object necessity data;
Information processing apparatus including a.   Information on background object necessity data used when executing a game in which a virtual camera moves along a predetermined path in a game space in which target objects and background objects that can be attack targets are arranged, and attacks the target objects. A data generation method for generating by a processing device,
  The information processing apparatus sets a virtual three-dimensional space in which the background object is arranged without arranging the target object; and
  The information processing apparatus draws the virtual three-dimensional space based on the virtual camera moved according to the route every given unit time, thereby determining whether or not drawing for each of the background objects is necessary. A determination step;
  A storage control step in which the information processing apparatus stores a determination result of the determination unit for each given unit time in a storage unit as background object necessity data;
  Data generation method. A program for causing a computer to execute a game in which a virtual camera moves along a predetermined path in a game space in which a target object and a background object that can be attack targets are arranged, and attacks the target object ,
Camera placement means for placing the virtual camera according to the path for a given unit time ;
Based on the background object necessity data generated by the information processing apparatus executing the data generation method according to claim 5, the necessity of arrangement of the background object is determined for each given unit time, and is determined in advance. A game space setting means for setting the game space by arranging a background object at a given position and arranging the target object ;
A program for causing the computer to function as Background object necessity data generated by the information processing apparatus executing the data generation method according to claim 5;
A program according to claim 6 ;
Is a computer-readable information storage medium. A game device that executes a game in which a virtual camera moves along a predetermined path in a game space in which a target object and a background object that can be attack targets are arranged, and attacks the target object ,
Camera placement means for placing the virtual camera according to the path for each given unit time ;
Based on the background object necessity data generated by the information processing apparatus executing the data generation method according to claim 5, the necessity of arrangement of the background object is determined for each given unit time, and is determined in advance. A game space setting means for setting the game space by arranging a background object at a given position and arranging the target object ;
A game device comprising:

Images