JPH11232483A - Information processor and information recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the integration feeling of a user or the like with a character and to permit the character to clearly display a direction in a virtual world by correcting a viewpoint against the character so that it is matched with the direction of the character based on a comparison result by a comparison means. SOLUTION: A correction device 303 corrects the position and the direction of a camera, which are stored, when a fact that an instruction to change the position and the direction of the character is given from a user is informed by an instruction device 302, and stores the corrected position/direction in a storage device 301. The correction device can be realized by CPU, for example. As a representative correction method, the camera is always arranged at the back of the character. In the method, operation feeling in terms of 'back ghost' can be obtained. The direction of the camera is changed with time and finally it is made matched with the direction of the character. In the method, the operation feeling of 'the character is traced and moved' can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus and an information recording medium, and more particularly, to an information processing apparatus and an information recording medium.
The present invention relates to an information processing apparatus and an information recording medium that correct the direction of a camera according to the moving direction of a character when projecting a dimensional space on a two-dimensional plane by a virtual camera and displaying the projected image.

[0002]

2. Description of the Related Art In recent years, virtual reality (virtual reality) has attracted attention in the field of information processing such as computers and game machines. In this, a user or a player moves in a virtual world constructed by calculation of an information processing device such as a computer or interacts with a character appearing in the virtual world. And the player also plays one of the characters in this virtual world.

[0003] A user or player operates a character in a virtual world using input devices such as a mouse, a keyboard, a controller, and a power glove to integrate the character with the character. Obtain information about the virtual world by observing the state of the virtual world displayed on a display device such as a Cathode Ray Tube or a liquid crystal display.

In order to display such a virtual world on a display device, a 3D CG (3Dimension Computer) is used.
Graphics (3D computer graphics) plays an important role. Unless a realistic image is displayed, the user and the player will not feel as if they are in the virtual world.

[0005] In such a 3D CG, information such as the position, orientation, posture, shape, and color of a character played by a user or a player is stored in a storage device in addition to an object constituting a virtual world. Further, assuming a camera arranged in this virtual world, the position and orientation of the camera are also stored in the storage device. Based on the stored information, image information of the state of the virtual world viewed from the camera is calculated, and the calculated image information is displayed on a display device.

The following methods have been used for the position and orientation of the camera in such 3D CG. (A) A camera is arranged at the position and direction of the eyes of a character operated by a user or the like. (B) A camera is arranged around the character operated by the user or the like, for example, behind the character.

The technique (a) corresponds to a case where a real person looks at the real world, and can be considered as a display method having the highest reality. However, the current technology of the input device and the display device has a problem that the operability is deteriorated because the sense of unity with the character is insufficient.
For example, there is a problem in that it is difficult to understand which character is facing only by the state of the displayed virtual world, for example, when an instruction to turn to the right is issued, it is often too much.

On the other hand, in the method (b), the following method has conventionally been adopted.

(A) A method in which the direction from a camera to a character is constant in a coordinate system expressing a virtual world. In this method, the camera direction is fixed in a fixed direction regardless of the character direction. For example, even when the character moves to the right, the camera direction does not change, so a right-facing character is displayed. . Accordingly, the sense of unity between the user and the character has been impaired.

(B) A camera is always placed behind a character. In this method, in order to change the position of the camera in the related art, the movement instruction to the character has been complicated. For example, if you want to move to the right, press the right button to change direction, then press the up button to move forward,
Complex and troublesome input such as was required.

According to such a method, it is possible to enjoy the feeling of “traveling with the character” and “becoming a spirit behind the character”. However, compared with the method (a), the sense of unity between the user and the character is improved. It is spoiled, resulting in reduced reality.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems. The present invention improves the sense of unity between a user and a character and the character, and makes it easy for the character to understand the orientation in the virtual world. An object of the present invention is to provide an information processing device to be displayed and an information recording medium for realizing the device.

[0013]

The invention for achieving the above object is the following invention.

According to a first aspect of the present invention, there is provided an instructing means for instructing the direction of a character, a comparing means for comparing the direction of the character designated by the instructing means with a viewpoint of the character, and Correction means for correcting the viewpoint of the character so as to match the direction of the character.

According to the present invention, the direction of the viewpoint is automatically changed according to the direction of the character, and the user can easily grasp the direction in which the character is arranged.

According to a second aspect of the present invention, a storage means for storing the position of an object and a viewpoint arranged in a three-dimensional space, and the position of the object and the viewpoint stored in the storage means are used to store the position of the object and the viewpoint. Axis image generating means for generating an image of the reference axis in the dimensional space.

According to the present invention, the orientation of the three-dimensional space with respect to the character is displayed by an image of the reference axis similar to a compass, and the user can easily grasp the relationship between the orientation of the three-dimensional space and the character.

Further, as means for solving the above-mentioned problems, an information processing device such as a general-purpose computer or a general-purpose game device having a display device, an input device, a control device, a storage device, and the like is provided. An information recording medium on which a program configured as an apparatus for carrying out the second invention is recorded is disclosed.

With this information recording medium, the information recording medium can be easily distributed and sold as a software product. Also, by loading software onto existing hardware resources, new applications and games can be implemented on the existing hardware. Especially,
By causing the information processing device to execute the program recorded on the information recording medium according to the invention, the devices according to the first and second inventions are realized.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. It should be noted that the embodiment described here is given as an example of the present invention, and is not intended to limit the present invention. Particularly, in the present application, hardware of a game device will be described as an embodiment of the information processing device, but the present invention is not limited to this. Therefore, those skilled in the art can replace each element of the embodiment with an equivalent element without departing from the principle of the present invention.

The information processing apparatus of the present invention can have an overall configuration 100 as shown in FIG. CPU (Cent
ral Processing Unit (central processing unit) 101
Main memory 102, OS ROM (Operating System)
Read Only Memory) 103, sound processor 104, extended serial / parallel port 105, graphic processor 106, CD-ROM (Compac
t Disk Read Only Memory) device 107, communication device 10
8 and a bus 109.

The CPU 101 can have a cache memory therein. Since access to the cache memory does not need to be performed via the bus 109, the cache memory can be accessed at a higher speed than the main memory 102. The cache memory stores the data near the address recently referred to by the CPU 101 and the program itself near the address currently being executed, so that it is possible to increase the speed of repetitive calculations and the like.

The graphics processor 106 is connected to a television device 115 via a video output 110. The graphic processing processor 106 generates an image of a character or a background, and
Play the role shown in 5. Graphic processor 10
No. 6 can perform animation display by sequentially changing images drawn on a two-dimensional plane, and can also generate images by projecting polygons arranged in a three-dimensional space onto a two-dimensional plane. In the present invention, the latter function can be mainly used.

By expressing each of the characters displayed on the screen and the objects in the virtual world surrounding the characters by polygons arranged in a three-dimensional space, a more realistic and powerful image can be provided. Information such as the position, orientation, posture, shape, and color of these polygons can be stored in the main memory 102 or CD-ROM.

Generally, in an information processing apparatus using the television device 115 as a display device, an image is displayed at intervals of a vertical synchronization signal generated every 1/60 second or at twice the interval (1/30 second). Often transferred. This interval is called a unit of “frame”, and the minimum unit of time is often a frame unit. Minimum unit of time is 1
By using a frame, an image can be displayed without flicker. However, those skilled in the art can adopt other minimum time units.

The sound processor 104 is connected via a sound output 111 to a speaker, headphones, or the like. When music data in the main memory 102 is reproduced, the data is transferred via the bus 109,
When playing back music data recorded on a D-ROM, data can be obtained directly from the CD-ROM device 107 without passing through the bus 109.

A plurality of information processing apparatuses can be connected to each other using the communication apparatus 108 or the extended serial / parallel port 105, or can be connected to a computer communication network such as a telephone line.

A controller 201 and a memory card 113 as shown in FIG. 2 can be connected to the communication device 108. Two or more controllers 201 can be connected to one information processing device, and a user issues an instruction to the information processing device via the controller. When the information processing device is used as a game device, the memory card 113 can store the current progress of the game and the like.

The controller 201 shown in FIG. 2 is an example of an input means for the information processing device. When this information processing device is used as a game device, the type and number of input switches and the shape of the input device are determined according to the content of the game. In the embodiment shown here, the controller 20
1 is a cross key 203, a circle button 204, and a cross button 20
5, □ button 206, △ button 207, start button 208, select button 209, L1 button 210, R
1 button 211, L2 button (not shown), R
An input switch such as a two-button (not shown) is provided. The player gives instructions to the character using these buttons.

The information processing apparatus according to the present invention is not limited to the above configuration. For example, the present invention can be applied to the following configuration. (A) Instead of the CD-ROM device 107, a hard disk, a ROM cassette, or the like can be used.

(B) A keyboard, joystick, power glove, voice input device, or the like can be used instead of the controller 201. Further, an input device that selects and inputs a picture of a keyboard displayed on a television device or a CRT with a mouse can also be used.

(C) The CPU 101 can also take the role of the sound processor 104 and the graphic processor 106.

(D) Instead of the memory card 113, a floppy disk or a hard disk can be used. (E) The sound processing processor 104 may not be provided. (F) The extended serial / parallel port 105 may not be provided.

For example, in a mode in which a keyboard is used instead of the controller 201, a numeric keypad or an arrow key is used instead of the cross key 203, a space key is used instead of the ○ button 204, and an escape key is used instead of the × button 205, respectively. Can be used. The correspondence of processing when each of such keys and buttons is used can be changed as appropriate.

Further, instead of such a general-purpose game device that enables various software to be used for the common hardware, each of the elements according to the present invention is constituted by an electronic circuit and the information according to the present invention is directly provided. It is also possible to configure a processing device.

FIG. 3 shows a basic configuration of the present invention. Information such as the position, orientation, shape, color, and orientation of an object, character, and camera in a three-dimensional space that represents a virtual world is stored in a storage device 301 such as the main memory 102. Information on a plurality of objects is stored in a storage area 311; information on a character is stored in a storage area 312; information on a camera is stored in a storage area 313;
Each is stored.

It should be noted that information on the shape and color of the camera is not always necessary. This is because the camera is virtual and the camera itself is not displayed on the screen. However, shapes and colors can be added. For example, when a plurality of cameras are switched, there is a case where it is desired to display another camera on the screen, or a case where the eyes of the character itself are cameras.

An image to be displayed is calculated based on the information stored in these areas.

The pointing device 302 interprets an input from a user or the like and directly changes the position or orientation of the character or camera stored in the storage device 301. An embodiment of the pointing device 302 will be described later.

On the other hand, the correction device 303 corrects the stored camera position and orientation when the instruction device 302 notifies the user that there is an instruction to change the position and orientation of the character, and corrects the corrected position. And the orientation are stored in the storage device 301. The correction device is, for example, a CPU 101
It can be realized by. The details of the correction method will be described later, but typically, the following method is considered. (A) The camera is always placed behind the character. With this method, a feeling of operation like “behind the soul” can be obtained. (B) The direction of the camera is changed with time so that it finally matches the direction of the character. With this method, an operational feeling such as “moving after the character” can be obtained.

The display device 304 stores the object, character, camera position, orientation, shape, and the like stored in the storage device 301.
Based on information such as color and posture, an image is generated when a virtual world in which an object or a character is arranged is viewed from a camera, and displayed on a device such as a television device. This embodiment will be described later.

When displaying, a reference axis in a three-dimensional space,
For example, if images in the horizontal plane and the north, south, east and west directions are simultaneously generated and displayed, the user can easily grasp the direction of the character. Hereinafter, the image of the reference axis is referred to as a “compass”.

Hereinafter, the details of each of the above-described devices will be described. Organisms such as characters, animals, plants, houses,
Artificial objects such as cars and bridges, and natural objects such as mountains, rivers, and the sea are arranged in the virtual world, and all of them are stored in the storage device 301 as objects represented by polygons. It is necessary to store information such as the position, posture, shape, and color of each object. These pieces of information can be initially stored in an external storage device such as a CD-ROM or a hard disk, and can be loaded into the main memory 102 via the CD-ROM device 107 or the bus 109 as needed.

Further, in order to speed up the image generation calculation in the display device 304, which will be described later, these objects can be stored in the storage device 301 in an order closer to or farther from the camera. A method of storing an object in an order according to the distance from the camera is called a Z-buffer method.

As the pointing device 304, the controller 20
1 can be used. The cross key 203 is an up key,
It is composed of a right key, a left key, and a down key, and these are used to indicate the moving direction of the character.

In the present invention, the camera can be arranged substantially behind the character. In this case, the character is displayed substantially at the center of the screen or near the center. Therefore,
The up key can be used to instruct forward movement (going away from the player), and the down key can be used to instruct backward movement (going toward the player). With the right key and the left key, it is possible to instruct to proceed to the right direction and the left direction, respectively.

Further, the L1 button 210 and the R1 button 21
1 can also be used to directly change the position and orientation of the camera. For example, when the L1 button 210 is pressed, the position of the camera is rotated to the left around a straight line that vertically passes through the character in the virtual world as long as the L1 button 210 is pressed.

Since the camera is in front of the character, when viewed from above the character and the character, the camera rotates clockwise around the character. In this case, the direction of the camera changes when viewed from the virtual world, but the camera always faces the character. When the R1 button 211 is pressed, the rotation is reversed.

The L1 button 210 and the R1 button 21
The correspondence between 1 and the direction of rotation itself can be reversed.

FIG. 4 is an image of the virtual world where the character 401 and the object 402 are arranged, as viewed from the camera. The change in the displayed image when the L1 button 210 is pressed is shown from FIG. 4 (c). FIG. 4D is a bird's-eye view of the positions of the character 401, the object 402, and the camera 403. While pressing the L1 button, the camera turns around the rotation axis 405 passing through the character 401 while pointing toward the character 401. 40
Rotate in the direction of 4.

This is convenient when it is desired to look around the character. Also, the character is rotated according to the rotation of the camera, and the L1 button 210
Also, when the user stops pressing the R1 button 211, the character also faces in the front direction as viewed from the camera, and a natural operation feeling can be provided.

Hereafter, as a matter relating to the direction of the camera and the character, a method for making it easy for the user to grasp the direction of the character when the scene is largely changed in the virtual world will be described.

In the real world, the scene may change greatly. For example, when crossing continents by plane or boat, humans perceive movement with a global view of the world, and when they enter a target village or town, they see the local world view of that village or town. Act in. Even if you are traveling by car, you will first get on the highway from your home town, and when you reach the destination town, the scale of the map will change from thin to rough,
And it becomes thin.

Similarly, in the virtual world, the scale of the displayed world may change greatly. This is the case when a village moves into the continent of the virtual world, finds a village, enters the village, walks around the village, and then moves back and forth through the continent.

In the real world, maps in which the north is drawn upward are frequently used. Similarly, a reference axis “northward” in the virtual world is provided. This can be one of the coordinate axes of a coordinate system fixed on the ground of the virtual world or the like.

Such a reference direction, for example, the north direction is set, and immediately after leaving or entering the village, the storage device 30 directs both the character and the camera to the north.
1 is automatically updated. In this way, the same operational feeling as when a map is viewed in the real world can be obtained, the orientation of the character can be easily grasped, and the operation can be facilitated.

The processing in the correction device 303 will be described below. The correction device 303 receives as input the orientation of the character and the orientation of the camera from the storage areas 312 and 313, outputs the position and orientation of a new camera (or a difference between these conventional values) as outputs, and based on these values. Then, the camera position and orientation information 313 stored in the storage device 301 is corrected. Therefore, they can be considered to constitute a feedback loop.

As described above, there are typically two possible correction methods when the direction of the camera and the direction of the character are different. Hereinafter, each will be described.

The first technique is to ensure that the camera is always located behind the character. If the direction of the camera is different from the direction of the character, the camera is rotated around the character by the difference between the angles. Therefore, the correction amount is the difference between the two directions.

If the character is always upright with respect to the virtual world, the rotation axis is a vertical line passing through the character, and the camera is horizontally rotated so that the camera always faces the character.

In this method, when the direction of the camera is different from the direction of the character, the position and the direction of the camera are immediately corrected. For this reason, the character is always displayed on the screen so as to face forward, and the character seen by the user is always on the back side. Therefore, the user becomes the “background spirit” of the character and sees the virtual world.

This display method can also be used when the character is a car and the player is the driver. The “back” of the character in this case is an image of a steering wheel or a dashboard of a car.

The second method is to change the direction of the camera with time so that it finally matches the direction of the character. In other words, the camera rotates around the character with a correction amount smaller than the difference between the character direction and the camera direction. After correcting the direction and position of the camera by this rotation, the state of the virtual world seen from the camera at this time is displayed on the screen,
This is a method of repeating this until the difference between the two directions becomes zero. Therefore, it takes time from when the character changes direction to when the camera becomes the same direction as the character.

The magnitude of the correction amount can be, for example, a value proportional to the difference between the two directions. This proportionality factor is
It is possible to change according to what time unit the image to be displayed is updated and the degree of followability of the camera.

Generally, when the proportionality coefficient is increased, the followability tends to be improved. However, when the user changes the direction of the character quickly, the camera may be swung as if the camera "vibrated".

On the other hand, if the proportionality coefficient is reduced, it takes time to turn to the same direction as the character, but the displayed image is less likely to vibrate.

In addition, a method of setting an upper limit on the rotational speed of the camera and rotating the camera and the character by the angle of the upper limit when the difference between the directions of the camera and the character is larger than the upper limit, and rotating the camera by the angle of the difference when the difference is smaller than the upper limit. Can be In this method, since the rotation speed of the camera is substantially constant, a stable image can be provided.

In addition, various methods of calculating the correction amount from the difference between the two angles and finally converging the difference between the two angles to zero can be used. For example, a method of introducing a time delay element or an integral element in classical control can be considered. Methods using these calculation methods are also included in the scope of the present invention.

In this method, the user can see the character facing right or the character facing left in addition to the back of the character. An operation feeling such as "moving after the character" is obtained.

The display of images from these cameras can be changed depending on the application or scene such as the target game. For example, when expressing the situation where a character is riding on a roller coaster or a storm comes while riding a ship, select a proportional coefficient so that the camera shake becomes large, and In situations where you are moving inside, you can use the "background spirit" calculation method.

As described above, in the 3D CG in which the position and orientation of the camera and the character change every moment, it is often difficult to grasp which direction the character is facing in the virtual world. The technique for solving this is the above-mentioned compass. This will be described below.

The compass is a display indicating which character is facing the virtual world. In the present invention, as described above, since the camera moves almost integrally with the character, the camera actually indicates which direction the virtual world is facing with respect to the character.

In the virtual world, east, west, north and south are assigned as in the real world. If the character is always upright with respect to the virtual world, it is sufficient if the compass can express a two-dimensional direction. You can know the direction of the character.

FIG. 5 shows an embodiment in which a compass is displayed.
The compass 501 is arranged at the lower right of the screen, and the character 5
02 is displayed at the center of the screen. The compass 501 is displayed in a bird's-eye view. "N" for compass 501
There are hands of “W”, “S”, and “E”. In FIG. 5, since the character is facing east, “E” of the compass 501 is displayed upward (toward the screen).

In addition, if the map 503 of the virtual world is displayed on the upper right of the screen, the vehicle can be moved by relying on the map 503 and the compass 501 so that the user drives the car while looking at the map and compass magnets in the real world. It can be carried out.

When the posture of the character is not always upright with respect to the virtual world, the direction of the character can be expressed by adding an upward element to the compass. FIG. 6 shows the shape of the compass in such a case.

If the character's posture is upright with respect to the virtual world, the compass indicates a horizontal plane by representing axes in two directions; otherwise, the compass indicates a horizontal plane by representing axes in three directions. A vertical method can be shown. Therefore, the minimum necessary configuration of the compass is, for example, a figure of two or three arrows orthogonal to each other.

These compasses are arranged in a virtual world and can be represented as objects satisfying the following conditions. (A) The compass moves with the camera in the virtual world.

(B) The position of the center of the compass as viewed from a coordinate axis fixed to the camera is always at a fixed coordinate. Thus, the compass is always displayed at the same position on the screen.

(C) The direction of the compass viewed from the coordinate axes fixed to the virtual world is always constant. That is, the "N" of the compass always faces north of the virtual world, the entire compass is placed horizontally, and so on.

The processing performed by the display device 304 will be described below. This process is a process of generating and displaying an image obtained by viewing a reference axis indicating an object, a character, and a direction in a three-dimensional space from a camera, but may employ a method known to those skilled in the art of 3D CG. For example, an example of a calculation method will be described with reference to FIG.

(1) Consider a local coordinate system assigned to each object or the like, a world coordinate system assigned to the entire three-dimensional space, and a line-of-sight coordinate system assigned to a camera. The line-of-sight coordinate system is composed of three mutually perpendicular axes of an x-axis, a y-axis, and a z-axis, and it is convenient for calculation when the camera is arranged on the origin. The gaze of the camera is aligned with the z-axis so that the camera is oriented in the positive direction of the z-axis. In this case, the z-axis represents depth. Information on each of these coordinate systems is stored (S701).

(2) The coordinates of the object and the reference axis on the local coordinate system and the world coordinate system are converted to the line-of-sight coordinate system (S702). For the coordinate transformation, rotation transformation, parallel movement transformation, affine transformation and the like are used. These conversion methods can be expressed by simple matrix addition, subtraction, and multiplication, and known methods can be used. These transformations can also be used when the camera as described above rotates around the character.

(3) A straight line is drawn from each point of each object, each surface, each ridge line, etc. to the camera at the origin. A point where this straight line intersects with a screen perpendicular to the z-axis of the line-of-sight coordinate system and passing through coordinates (0, 0, a) is defined as a projection onto the screen (S7).
03). Since the screen is a two-dimensional plane, there are two coordinate axes, vertical and horizontal. The horizontal axis is parallel to the x axis of the line of sight coordinate system,
Setting the vertical axis parallel to the y-axis of the visual axis coordinate system is convenient for calculation. This is repeated for each point on the screen, or for each object or the like, and the image of each object projected on the screen is calculated. If the coordinates of the object are (x,
y, z), this object is represented by coordinates (ax
/ Z, ay / z).

(A) When the Z-buffer method is used, objects are processed in a distant order and projected on a screen, and when an image has already been projected, overwriting is performed so that a distant object is You can get a hidden image.

(B) The method of repeating the calculation for each point on the screen is called a ray tracing method. For each point on the screen, the line of sight from the camera through that point is extended, and the projection for that point is calculated based on the color of the object that the line of sight has first encountered.

(C) In addition, various techniques of 3D CG, such as displaying a distant object in a blurred manner, can be applied to the present invention.

(4) The image on the screen generated by calculating the image of each object is displayed on a television set, CRT, liquid crystal display or the like (S704).

In the embodiment described here, the above calculations for image generation are performed in the graphic processor 106, and the generated image is displayed on the television device 115 via the video output 110. , Parallel processing with the CPU 101 is realized, and high-speed calculation and image display are possible. of course,
All of these calculation processes can be performed by the CPU 101.

Note that this calculation method is an example of the embodiment of the present invention, and the case where another equivalent calculation method is used is also included in the scope of the present invention.

FIG. 8 shows a flowchart when the present invention is implemented. Hereinafter, each process when implementing the present invention will be described. (1) First, an input from the user is received (S80)
1). In the present embodiment, the user issues an instruction to the character by pressing each button or key of the controller 201.

(2) If the input is the cross key 203, go to step (3). If the L1 button 210 or R1 button, go to step (4). If the other key, go to step (1). Return (S802).

(3) The character is moved in the direction designated by the cross key 203 (S803), the direction of the camera is corrected from the difference between the direction of the character and the camera (S804), and an image viewed from the camera is generated. Is displayed (S805), and the procedure returns to the procedure (1).

(4) In the case of the L1 button, the camera rotates around the character in the clockwise direction as viewed from above, and in the case of the R1 button, on the contrary, the position and orientation of the camera are updated ( (S806), an image viewed from the camera is generated and displayed (S807), and the procedure returns to step (1). In some cases, the orientation of the character may be updated together with the update of the camera information.

The processes and devices described in the present specification are merely examples of the embodiments, and those skilled in the art can replace the processes and devices with equivalent processes and devices. Embodiments are also included in the scope of the present invention.

[0096]

As described above, the present invention provides a 3D
It can be applied to information processing devices such as computers and game devices that display the world represented by CG,
When moving the three-dimensional virtual world by manipulating the character, it is possible to increase the sense of unity between the user and the character and to easily grasp the current orientation of the character in the virtual world.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of an embodiment of an information processing apparatus according to the present invention.

FIG. 2 is an explanatory diagram illustrating an example of an embodiment of an input device of the information processing apparatus according to the present invention.

FIG. 3 is an explanatory diagram showing an example of a basic configuration of the present invention.

FIG. 4 is an explanatory diagram showing a display example according to the present invention.

FIG. 5 is an explanatory diagram showing a display example according to the present invention.

FIG. 6 is an explanatory diagram showing an example of the shape of a compass used in the present invention.

FIG. 7 is a flowchart illustrating calculation processing for displaying 3DCG according to the present invention.

FIG. 8 is a flowchart showing a process of processing according to the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 game device 101 CPU 102 main memory 103 OS ROM 104 sound processor 105 extended serial / parallel port 106 graphic processor 107 CD-ROM device 108 communication device 109 bus 110 video output 111 sound output 113 memory card 115 television device 201 controller 203 Cross key 204 ○ button 205 × button 206 □ button 207 △ button 208 Start button 209 Select button 210 L1 button 211 R1 button 301 Storage device 302 Pointing device 303 Correction device 304 Display device 311 Object information storage area 312 Character information Storage area 313 camera information storage area 401 character 402 object 403 camera 40 Rotational direction 405 rotates shaft 501 compass 502 character 503 Map

Claims (4)

[Claims] 1. An instructing means for instructing a direction of a character, a comparing means for comparing a direction of the character designated by the instructing means with a viewpoint of the character, and a character based on a result of the comparison by the comparing means. An information processing apparatus comprising: a correction unit configured to correct a viewpoint with respect to a direction of the character so as to match the direction of the character. 2. A storage means for storing the position of an object and a viewpoint arranged in a three-dimensional space, and using the position of the object and the viewpoint stored in the storage means, the three-dimensional space viewed from the viewpoint position. An information processing apparatus comprising: an axis image generation unit configured to generate an image of a reference axis. 3. A procedure for designating the direction of the character, a procedure for comparing the direction of the designated character with a viewpoint for the character, and a viewpoint for the character matching the direction of the character based on a result of the comparison. Recording a program for realizing a process including a correction procedure as described above. 4. A procedure for storing the positions of an object and a viewpoint arranged in a three-dimensional space, and using the stored positions of the object and the viewpoint, an image of a reference axis in the three-dimensional space viewed from the viewpoint position is obtained. A recording medium on which a program for realizing a process including a generation procedure is recorded.