JP2000176167A - Game machine, game control method and storage medium thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable recognition how closer a moving object approach an object by making a hue of the moving object merge into a set object. SOLUTION: When showing a flying object as a polygon that can move in an optional direction in a virtual three-dimensional space, and displaying the flying object made up of an image that is texture mapped to the polygon and a cloud as an object are to be displayed, in the virtual three-dimensional space, the height direction distance (d) between the cloud and the flying object is obtained, and if the distance (d) exists within a prescribed range (S21, S22, S23-Yes), on the basis of the distance (d), correction is made to bring the display RGB value of an image forming the flying object closer to the display RGB value of the cloud (S30).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game device and a game control method for advancing a game according to a game program.

[0002]

2. Description of the Related Art Conventionally, a video game in which a moving object is moved in a virtual three-dimensional space, for example, a simulation simulation game of an airplane or various vehicles, or various instructions from a controller to move the moving object in a desired direction. 2. Description of the Related Art Games and the like for avoiding obstacles and the like created on the way and reaching a destination are known.

In such a game, depth cuing is performed on a moving object based on a distance from a viewpoint to give a virtual three-dimensional space a sense of depth that is realistic.

[0004]

However, since depth queuing is based on the distance from the viewpoint, it is difficult to recognize how close the moving object is to the target. For example, it is determined that the vehicle has reached the target object because it cannot move any more.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and solves the above-mentioned problems. The purpose is to make it possible to recognize how close the user is.

As one means for achieving the above object, for example, the following arrangement is provided. That is, in a game device including a moving body including a polygon that can move in a virtual three-dimensional space in an arbitrary direction and an image texture-mapped to the polygon and a display unit that can display other objects, A separation distance calculating unit that calculates a separation distance between the moving object and the other object when the moving object is within a predetermined range of the other object; and the moving based on the separation distance calculated by the separation distance calculation unit. A display color correction unit that brings a display color of an image forming the body closer to a predetermined display color.

[0007] Also, a display means capable of displaying a moving object composed of a polygon capable of moving in a virtual three-dimensional space in an arbitrary direction and an image texture-mapped to the polygon, and another object; A distance calculating unit that calculates a distance in the screen height direction between the moving object and the other object when the moving object is within a predetermined range of the object, based on the distance calculated by the distance calculating unit. A correction unit that brings each display color of the image forming the moving object closer to a display color set in advance for each of the other objects.

[0008] For example, the moving object is a flying object, and the other object is a cloud.

Further, for example, the display color is represented by a luminance color information value, and the correction means sets each luminance color information value of an image constituting the moving object to each luminance set in advance for each of the other objects. It is characterized in that a color correction approaching the color information value is performed.

Further, for example, the color correction for the moving object may be such that when the separation distance between the moving object and the other object is lost, the display color of the moving object is substantially the display color of the other object. Features.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The following description describes an example in which the present invention is applied to a game device.

[First Embodiment] FIG. 1 is a block diagram showing the overall configuration of a game system according to an embodiment of the present invention. The game system 51 is roughly divided into a game device main body 52 having a main function of the game system 51, a controller 53 for inputting an operation instruction to the game device main body 52, and a program for realizing a game-related process described later. CD-ROM (Comp
act Disc Read Only Memory) 54, a memory card 55 for storing game data such as game progress data and game environment setting data, and a game content based on video and audio signals from the game device main body 52. Monitor display 56 for video display and sound output
It is composed of

The game apparatus main body 52 has a C
Disk holder 6 for setting D-ROM 54
1. Open button 6 for opening disk holder 61
2. A power button 63 and a reset button 64 are provided. Further, on the front surface of the game device main body 52, a slot portion 65 for mounting a controller 53 and a memory card 55 for storing the progress of the game and the like is provided,
The controller 53 and the memory card 55 are removably attached to the game device main body 52 via the slot portion 65.

On the rear surface of the game device main body 52, A
An AV output unit (not shown) for connecting a V (Audio and Visual) cable 57 is provided, and the game apparatus main body 52 and the monitor display 56 are connected via the AV cable 57. The monitor display 56
It can be constituted by a CRT (Cathode Ray Tube) or the like.

FIG. 2 is a block diagram showing a detailed configuration of the game device main body of FIG. 1 and its periphery. Game device body 5
2 is a CPU (Central Processing Unit) 101, GTE (Geometric Transform En
gine; graphics data generation processor) 10
2. Peripheral device 103, main memory 104, OS-
ROM (Operating System ROM) 105, MDEC (Mo
tion Decoder; data decompression engine) 106, PIO
(Parallel Input Output; extended parallel port) 10
7, SIO (Serial Input Output; extended serial port) 108, GPU (Graphics Processing Unit; graphics drawing processor) 109, frame buffer 110, SPU (Sound Processing Unit; sound reproduction processor) 111, sound buffer 1
12, a CD-ROM drive 113, a CD-ROM decoder 114, a CD-ROM buffer 115, and a communication device 116.

The CPU 101 and the peripheral device 10
3. Main memory 104, OS-ROM 105, MDE
C106, PIO107, SIO108, GPU10
9, the SPU 111, the CD-ROM decoder 114, and the communication device 116 are connected to each other via the bus 100.

FIG. 3 is a diagram showing a memory configuration of the frame buffer 110. As shown in the figure, a frame buffer 110 has a double buffer configuration drawing area A111 for storing image data drawn by the GPU 109 or image data transferred from the main memory 104.
0, a drawing area B1120, a display area A1130 having a double buffer structure for storing image data to be displayed on the monitor display 56, and a display area B1140.

The drawing area A1110 and the drawing area B11
20, the display area A 1130, and the display area B 1140 correspond to the GPU 10 according to the field rate at the time of displaying an image.
9 alternately.

The frame buffer 110 has a GPU
Reference numeral 109 denotes a color lookup table (CLUT) 1150 that is referred to for specifying a color when drawing an image, and a texture pattern area 1160 that stores texture pattern data for texture mapping.

FIG. 4 is a diagram showing details of the CULT 1150. As shown in FIG. 4, the CULT 1150 has 16 CULT entries 1151 in the present embodiment.
(CULT1 to CULT16). Each CULT entry 1151 is image data, and defines one piece of color information. Therefore, CULT 1150 is 16
You can define color information for colors.

FIG. 5 is a diagram showing details of the CULT entry 1151. As shown in FIG. 5, one CULT
The entry 1151, that is, one piece of color information is a 4-bit R value 1151a that defines red luminance, a 4-bit G value 1151b that defines green luminance, and a 4-bit B value 1151c that defines blue luminance. , And 1 bit flag bit.

The CPU 101 stores an OS (operating system) stored in the OS-ROM 105 and a C
Based on programs and data read from the D-ROM 54 and expanded in the main memory 104, the game device control unit controls various parts of the game apparatus main body 52 to execute processing related to a game described later. Hereinafter, the game progress processing of the present embodiment will be described.

The CPU 101 reads a game program, modeling data of a three-dimensional model, and the like from the CD-ROM 54 and transfers them to the main memory 104. In the same manner, a color look-up table (CLUT: Color Look-Up Table), texture pattern data, and the like are read from the CD-ROM 54 and the frame buffer 110 is read.
And instructs the GPU 109 to draw an image.

In response, the GPU 109 makes the GTE 10
Modeling processing and rendering processing are performed based on the coordinate data and color information obtained in step 2, CLUT and texture pattern data developed in the frame buffer 110, and the like. Then, a two-dimensional projected image of an arbitrary area in the virtual three-dimensional space configured by arranging the three-dimensional model is drawn on the frame buffer 110.

Thereafter, the image data is output to the monitor display 56 as a video signal by adding a synchronizing signal or the like. As a result, an image corresponding to the game content is displayed on the screen of the monitor display 56.

The CPU 101 has a CD-ROM 54
Then, the sound data is read from the main memory 104 and transferred to the main memory 104 or the SPU 111 to instruct the SPU 111 to reproduce the sound. In response to this, the SPU 111 appropriately executes a modulation process, a reproduction process, and the like on these sound data. In addition, this sound reproduction data is stored in a CD-RO
The monitor display 56 is superimposed on the audio reproduction data transferred from the M decoder 114 to produce an audio signal.
Output to As a result, the built-in speaker (not shown) of the monitor display 56 outputs BGM according to the game content.
(Back GroundMusic) and sound effects are output.

The CPU 101 generates a clock signal based on a timing signal supplied from an oscillator (not shown) and counts the clock signal by a built-in timer counter (not shown) to measure time.

The GTE 102 is connected to the CPU 101,
It operates as a coprocessor of the CPU 101. This GT
In step E102, coordinate calculation such as movement, rotation, enlargement, and reduction, and perspective transformation calculation to two-dimensional coordinate data are performed for each three-dimensional coordinate data constituting the three-dimensional model in response to a calculation request from the CPU 101. It performs matrix and vector arithmetic processing in a fixed-point format such as brightness calculation for calculating the brightness of each unit according to the type of the light source, the distance and angle from the light source, the viewpoint position, and the like.

The peripheral device 103 controls interrupt control and D
It performs control related to MA (Direct Memory Access) transfer. The main memory 104 is a memory for storing programs executed by the CPU 101 and data necessary for the execution. This main memory 104
The memory configuration and stored data will be described later. The OS-ROM 105 stores an OS such as an OS kernel and a boot loader that performs basic control of the game apparatus main body 52.

The MDEC 106 is a JPEG (Joint Photo)
ographic Coding Experts Group) or MPEG (Mov
Huffman coding (Huffma coding) for still and moving image compressed image data such as the
n coding) decoding, inverse quantization, IDCT
(Inverse Discrete Cosine Translation) operation is performed to decompress the compressed image data. The PIO 107 is an extension port for parallel data, and the SIO 108 is an extension port for serial data.

The GPU 109 is a sub-processor that operates independently of the CPU 101. This GPU109
Is a GTE 102 according to a drawing instruction from the CPU 101.
Coordinate data and color information obtained in step 2, frame buffer 1
Based on the CLUT, texture pattern data, and the like developed in 10, a modeling process and a rendering process of a three-dimensional model composed of a plurality of polygons are performed. Then, a two-dimensional projected image of an arbitrary area in the virtual three-dimensional space configured by arranging the three-dimensional model is drawn on the frame buffer 110. A polygon is
It is the minimum unit of a figure constituting a three-dimensional model, and is formed of a polygonal plane such as a triangle or a quadrangle.

The SPU 111 is a sub-processor that operates independently of the CPU 101. This SPU111
Are ADPCM (Adaptive) stored in the sound buffer 112 in accordance with a sound reproduction instruction from the CPU 101.
Various modulation processing such as volume adjustment processing, pitch conversion, pitch adjustment, envelope, and reverb are appropriately performed on the sound data in the Differential Pulse Code modulation (Differential Pulse Code Modulation) format. In addition, the reproduction processing is performed, and the reproduced signal is output to the monitor display 56 as an audio signal.

The SPU 111 converts the audio reproduction data transferred from the CD-ROM decoder 114 into an SP.
The data is superimposed on the sound reproduction data reproduced in U111 and output to the monitor display 56 as an audio signal.

The sound buffer 112 includes the CPU 101
Is a memory for temporarily storing ADPCM-format sound data and the like transferred from the main memory 104. The sound buffer 112 is used for the SPU 11
1 is used as a work area when reverb processing is performed, and sound data for processing is stored in the main memory 104.
It is also used as a buffer when transferring to.

The CD-ROM drive 113 has a CD-R
The OM 54 is driven and the encoded data stored in the CD-ROM 54 is read. CD-RO
The M decoder 114 has a CD-ROM drive 113
The data read from the D-ROM 54 is decoded, error correction processing and the like are performed, and the decoded program and data are transferred to the main memory 104, the SPU 111, and the like. The CD-ROM drive 113 includes an internal sound source and a mixer (both not shown) and has a function of reproducing audio data. CD-ROM buffer 1
Reference numeral 15 denotes a memory for temporarily storing transfer data.

The controller 53 and the memory card 55 which are removably attached to the game apparatus main body 52 via the slot 65 are connected to the communication device 116. The communication device 116 controls data transfer between the controller 53 and the memory card 55 and each unit of the game apparatus main body 52, for example, the CPU 101 and the main memory 104.

The controller 53 is an input device for transmitting various operation signals corresponding to the operation input from the player to the game apparatus main body 52 via the communication device 116.
The controller 53 is provided with a plurality of input buttons for performing various inputs such as a start button and a direction key.

The memory card 55 is constituted by a flash memory and stores game data such as game progress data and game environment setting data.

In this game device main body 52,
Main memory 104, frame buffer 110, sound buffer 112, CD-ROM buffer 115, M
It is necessary to transfer a large amount of image data and sound data to the DEC 106 when drawing or displaying an image or outputting sound. Therefore, in order to perform data transfer at high speed, so-called DMA transfer is performed in which data transfer is directly performed between the two under the control of the peripheral device 103 without the intervention of the CPU 101.

The CD of the present embodiment having the above configuration
-The ROM 54 is, for example, a storage unit for a program necessary for the progress of the game, the memory card 55 is a storage unit for saving game data, a game data storage unit, and the CPU 101 is a storage unit for realizing various other functions. Each has a function. Also, the CPU 101,
GTE102, GPU109, monitor display 56
And the like have the function of time display means described later.

Next, a description will be given of details of processing in which the character is blurred as the character moves further in the GTE 102 according to the present embodiment having the above configuration.

In the following description, as an example of a moving object, a case will be described in which a character operates a flying object moving in the air, and a specific character at the back of the map, which is an object to be melted, is a cloud object.

The flying object is represented by a polygon that can move in a virtual three-dimensional space in an arbitrary direction, and the flying object composed of an image texture-mapped to the polygon and another object (a cloud object that is a melting object). When displaying, in the virtual three-dimensional space, the viewpoint position of the operator is (x0, y0, z0).

Then, as shown in FIG. 6, on the map, the coordinates of the flying object to be processed are indicated by the center coordinates (x1, y1, z1) of the flying object, and the coordinates of the specific character (the object to be melted in) are displayed. The coordinates are indicated by the center coordinates (x2, y2, z2) of the specific character. Then, a distance d in the height direction between the target object and the flying object is obtained, and each display RGB value of an image forming the flying object is displayed based on the distance d.
Perform correction to approximate the value.

In the present embodiment, a parameter (fog parameter) corresponding to the height of the Y coordinate of the target object and an RPG (fog RGB, fog parameter at which the flying object finally melts at the target coordinate position are the largest) RGB) and set the CLU from the fog parameter and the fog RGB.
T is obtained for each frame, and a color corresponding to the distance to the object is given to the flying object (character). That is, the closer the flying object is to the back, the closer to the color of the target object (the character is blurred).
Processing is realized.

Hereinafter, the game progress control in this embodiment will be described with reference to FIG. FIG. 7 is a flowchart for explaining game progress control in the present embodiment.

The game apparatus 5 is set by setting the CD-ROM 54 storing the game program, game data, graphics, and the like in the CD-ROM drive 113 of the game and graphic system according to this embodiment.
When the second power button 63 is turned on, when the game to be described later is ended, or when the game is reset (restarted) by the reset button 64, the process shifts to the control shown in FIG.

First, in step S10, data and graphics required for the game are stored from the CD-ROM 54 in the main memory 104 or the frame buffer according to the program stored in the main memory 104.

Next, in step S11, a game start process for performing initial settings such as opening display and character setting is performed. Then, the game control of step S12 and subsequent steps is performed. FIG. 8 is a diagram showing a state of the game according to the present embodiment.

The virtual three-dimensional space 85, which is a game space,
It is composed of a moving object 82 whose position and moving speed are controlled based on an operation signal of the controller 53 of the game operator, other objects 83 and 84 which are flying objects, and a cloud object 81 which is another project. Each object is composed of polygon data that is game data, graphics that are textures, and the like.

First, in step S12, the position of the moving object or the viewpoint of the game, and the positions of other objects and the moving speed are controlled based on the operation signal of the controller 53 of the game operator.

Next, in step S13, other game controls are performed. This other game control, for example,
This is control for performing game control such as a shooting game using the moving body 82 and the flying bodies 83 and 84.

Subsequently, the flow advances to step S14 to control the display of the current game screen on the monitor display 56.
Then, the process proceeds to a step S15 to check whether or not the game is over. If the game has not ended, the process returns to step S12 to perform the game control.

The game proceeds as described above, and when the game ends, the process proceeds from step S15 to step S16 to execute a game end process and end the game.

Details of the display control in step S14 of FIG. 7 will be described below with reference to FIG. FIG. 9 is a flowchart illustrating details of the display control in step S14 of FIG. 7 of the present embodiment.

As shown in the flowchart of FIG. 9, in the display processing of this embodiment, in steps S21 to S23, the character (flying object) is at a predetermined distance (x, (y, z) is determined.

First, at step S21, the x coordinate (x
It is determined whether the distance between 1) and the x coordinate (x2) of the cloud object is equal to or less than a predetermined value or not (absolute value of (x1-x2) is equal to or less than a predetermined value). If the distance between the x coordinate (x1) of the flying object and the x coordinate of the cloud object is not less than a predetermined value, step S2
Proceed to 5 to execute three-dimensional calculation and drawing processing.

In the three-dimensional calculation and drawing processing in step S25, if the character (flying object) is not within a predetermined distance (x, y, z) from the cloud object as the target object, the display color of the character is displayed. Is moved to the specified position without changing the CPU 1, and the GPU 109
An arbitrary area in a virtual three-dimensional space configured by arranging a three-dimensional model based on the coordinate data and color information obtained by the GTE 102 in accordance with the drawing instruction from 01, CLUT and texture pattern data developed in the frame buffer 110, and the like. 2D projection image of frame buffer 1
Draw on 10. And return.

On the other hand, if the distance between the x coordinate (x1) of the flying object and the x coordinate of the cloud object is equal to or less than a predetermined value in step S21, the process proceeds to step S22, where the z coordinate (z1) of the flying object and the cloud object are compared. It is determined whether or not the distance of the z coordinate (z2) is equal to or less than a predetermined value or the absolute value of (z1-z2) is equal to or less than a predetermined value. If the distance between the z-coordinate (z1) of the flying object and the z-coordinate (z2) of the cloud object is not less than the predetermined value, the process proceeds to step S25, where three-dimensional calculation and drawing processing are executed.

On the other hand, if the distance between the z coordinate (z1) of the flying object and the z coordinate (z2) of the cloud object is equal to or less than the predetermined value in step S22, the process proceeds to step S23, where the y coordinate (y1) of the flying object and It is determined whether the distance of the cloud object at the y-coordinate (y2) is equal to or less than a predetermined value or whether the absolute value of (y1-y2) is equal to or less than a predetermined value. If the distance between the y-coordinate (y1) of the flying object and the y-coordinate of the cloud object is not less than the predetermined value, the process proceeds to step S25, where three-dimensional calculation and drawing processing are executed.

On the other hand, if the distance between the y-coordinate (y1) of the flying object and the y-coordinate of the cloud object is equal to or less than a predetermined value in step S23, the character (flying object) is set to a predetermined distance from the cloud object as the target object. Since the state is within the distance (x, y, z), the process proceeds from step S23 to step S30, and the depth cueing (CLU) is applied to the texture to be attached to the model based on the separation distance d between the flying object and the object.
(T fog) processing. CLUT fog processing allows the vehicle to blend in with the color of the object as it approaches the object. After the above-described color correction for the character (flying object) is performed, the process proceeds to step S25.

The details of the depth queuing process in step S30 will be described below with reference to the flowchart of FIG.

In the depth queuing process, when the object is a cloud (polygon) in the game, fog RGB (colors r0, g0, b
0, for example, white) is set in advance. When the flying object is within the predetermined range of the cloud polygon, the process is executed. First, in step S31, the fog parameter P is obtained from the separation distance d in the screen height y direction. The fog parameter P is a value indicating how much the fog RGB value is affected. The fog parameter P is a parameter for processing the RGB.
B is the original RGB, and if P is 255, it is the fog RGB set for the cloud polygon. The middle is a simple linear proportion.

FIG. 11 shows an example of the fog parameter P.
After the fog parameter P is determined, the process proceeds to step S32.
In step S34, the RGB values obtained by fog processing are calculated from the parameters P for each color of the CLUT 1150 for displaying the flight stored in the frame memory and the original RGB and fog RGB.

First, in step S32, R = (r0-8 ^* r) ^* P / 2048 + r of the first color (1) where r is the R value of the flying object, and r0 is the value of R according to the R value of the cloud polygon. I do.

Then, in step S33, G = (g0−8 ^* g) ^* P / 2048 + g (2) where g is the G value of the flying object, and g0 is the G value of the first color according to the G value of the cloud polygon. calculate.

Finally, in step S34, B = (b0−8 ^* b) ^* P / 2048 + b (3) where b is the B value of the flying object, and b0 is the B value of the first color according to the B value of the cloud polygon. calculate.

Then, in step S35, the CLUT 1150
It is determined whether or not the color correction for all colors of the flying object has been completed. If the colors that have not been color-corrected match, the process proceeds to step S36, where it is set to perform color correction for the next color, and the process proceeds to step S32.
From step 2 in step S34, the correction RGB values for the next color are registered in the CLUT 1150.

In this manner, the color correction of the CLUT 1150 is sequentially performed, and when the correction of all the colors of the moving body of the CLUT 1150 is completed, the process proceeds from the step S35 to a step S37, where the corrected (processed) CLUT 11 is processed.
The processing is set so as to perform the drawing process using 50, and the routine ends.

Note that registration to the CLUT 1150 may be performed collectively after correction values for all colors are obtained. FIG. 12 shows step S3 in the present embodiment.
FIG. 7 is a diagram for explaining CLUT change processing of No. 7;

Thereafter, the process of step S25 in FIG. 9 is executed, and when the flying object approaches the cloud object, the color is corrected to a color closer to the cloud object and displayed.

In the actual game screen, for example, as shown in FIG. 8, a cloud object 81 is displayed at the lowermost position as viewed from the viewpoint 80. Then, from the viewpoint 80, the cloud polygon 8
Flying objects 82 to 8 within a certain viewing angle when viewing in one direction
When the position 4 is located, the depth queuing process is performed on the flying object at the position.

In this embodiment, the flying object (OBJ), which is a moving object, has 16 15-bit RGB sets for 16 colors, that is, 48 values of 0 to 31.
This is rewritten by the control shown in FIG. 10, and the fog effect of giving the flying object a color that melts as it approaches the cloud is provided with simple control.

As described above, according to the present embodiment, the C that a character (flying object) originally has
LUT (for 16 colors) is converted to fog parameter / fog RG
By calculating from the B value and generating a new CLUT for each frame, it is possible to reliably recognize the position of the character with respect to the target object by a simple process of simply processing the CLUT that should be used one by one and using it. it can.

Since the fog parameter P is calculated using the map shown in FIG. 11, for example, the parameter value can be assigned to the minimum value and the maximum value of the map y coordinate. It can be calculated very easily. Note that a constant value may be forcibly input.

Further, in the generation of the CLUT, each of the 16 colors of the flying object is the RGB value itself of the original flying object CLUT when the fog parameter P = 0, and the cloud value when the fog parameter P = 255. Color (fog RGB
Value) itself, and when it is an intermediate value between 0 and 255, it can be calculated by a simple intermediate division, can be calculated at high speed, and does not hinder the progress of the game.

As described above, for example, when a flying object overlaps above or below a cloud object (polygon) set in the game, the hue of the flying object blends into the color of the cloud (preset fog RGB values). Expression becomes possible.

At this time, for example, when fog RGB is set to white, it is possible to express the image particularly in the cloud.

In the above description, the character is a flying object and the target object is a cloud. However, it is needless to say that the object is not limited to the character and the target object but can be various objects.

As described above, according to the present embodiment, the color of a character can be changed with a simple configuration based on a predetermined object.

[Second Embodiment] In the above description,
The corrected RGB values of the flying object CLUT in the depth queuing process have been obtained by the above-described equations (1), (2) and (3). However, the present invention is not limited to the above example, and it goes without saying that the calculation method of the fog parameter can be appropriately changed.

For example, the fog parameter P may be obtained by P = {Pr-Pf) ^* vy / h} (4)

The corrected RGB values of the flying object CLUT may be obtained according to the following equation. In the following equation, the same operation and effect as those of the first embodiment can be obtained.

In the second embodiment, R = r (1−P / 255) + (P / 255) r0 (5) where r: R value of the flying object, r0: R value of the cloud polygon The value of R is calculated according to G = g (1−P / 255) + (P / 255) g0 (5) where g: the G value of the flying object, and g0: the G value according to the G value of the cloud polygon. B = b (1−P / 255) + (P / 255) b0 (5) where b is the B value of the flying object, and b0 is the value of B according to the B value of the cloud polygon.

As described above, according to the present embodiment, the color of a character can be changed with a simple configuration based on a predetermined object.

[Third Embodiment] In the above description, the corrected RGB values of the flying object CLUT in the depth queuing process are obtained based on the distance d with respect to the height of the object and the character. However, the present invention is not limited to the above example, and the distance from the viewpoint to the object,
The fog expression may be performed by directly changing the CULT of the character object according to the difference in the distance from the viewpoint to the character.

FIG. 13 shows an example of a method of calculating a distance in the depth queuing process according to the third embodiment of the present invention.
This will be described below with reference to FIG. In FIG. 13, reference numeral 80 denotes an operator's viewpoint position (x0, y0, z0); 81, a target object (cloud); and 82, a flying object.

On the map, the coordinates of the flying object to be processed are defined as the center coordinates (x1, y1, z1) of the flying object, and the coordinates of a specific character (the object to be blended) are defined as the center coordinates ( x2, y2, z2), the distance d between the target and the flying object can be obtained by focusing on the z coordinate, and the viewpoint position and the distance d between the target object and the cloud are calculated.
1 is the absolute value of (z0-z2), the distance between the viewpoint position and the flying object is the absolute value of (z0-z1), and the distance d between the target cloud and the flying object is the absolute value of (z1-z2) Can be obtained respectively.

Therefore, in the third embodiment, the distance d between the object and the flying object is determined as the absolute value of (z1-z2), and each display R of the image forming the flying object is determined based on the distance d.
Correction is performed so that the GB value approaches the displayed RGB value of the object.

A parameter (fog parameter) corresponding to the distance between the object and the flying object and an RPG (fog RGB, RGB when the fog parameter is the maximum) at which the flying object finally melts at the coordinate position of the object are set. , A CLUT is determined for each frame from the fog parameters and the fog RGB, and a color corresponding to the distance to the object is given to the flying object (character).

In the third embodiment, the basic control of the correction value can be performed by the same control as in the first and second embodiments described above.

In the above description, attention is paid to the z coordinate, and in the first embodiment, attention is paid to the y coordinate.
The fog parameter may be obtained by calculating the distance three-dimensionally by focusing on both the coordinates.

[Other Embodiments] While the present invention has been described in detail with reference to the embodiments and the modifications thereof, the present invention is not limited to the above embodiments and the modifications thereof. Needless to say, it can be appropriately changed without departing from the gist of the invention.

For example, in the above-described embodiment and its modifications, the case where the present invention is realized using a home game machine as a platform has been described. However, the present invention uses a general-purpose computer such as a personal computer or an arcade game machine as a platform. It may be realized.

In the above-described embodiment and its modifications, programs and data for realizing the present invention are stored on a CD.
-Stored in a ROM, and this CD-ROM was used as an information recording medium. However, the information recording medium is a CD-RO
The storage medium is not limited to M, but may be another magnetic or optical recording medium or a semiconductor memory that can be read by a computer, such as a magnetic disk or a ROM card.

Further, the programs and data for realizing the present invention are not limited to the form provided by a medium such as a CD-ROM that is detachable from a game machine or a computer. Save data is
The program may be received from another device connected via a communication line or the like and recorded in a memory.Furthermore, the above program or the like may be stored in a memory of another device connected via a communication line or the like. Data may be recorded, and this program or data may be used via a communication line or the like.

[0097]

As described above, according to the present invention, the color of the moving object can be blended into the set object, and it is possible to recognize how close the object is to the target.

[0098]

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a game system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a detailed configuration of a main body of the game apparatus shown in FIG. 1 of the present embodiment and its periphery.

FIG. 3 is a diagram showing a memory configuration of a frame buffer shown in FIG. 2 of the present embodiment.

FIG. 4 is a diagram illustrating a CLU stored in a frame buffer shown in FIG. 2;
FIG. 3 is a diagram illustrating a configuration of T.

5 is a diagram showing a configuration of a CLUT entry of the CLUT shown in FIG.

FIG. 6 is a diagram for explaining a positional relationship between a target object and a flying object of a character in a depth queuing process according to the embodiment;

FIG. 7 is a flowchart for explaining game progress control in the present embodiment.

FIG. 8 is a diagram for explaining game progress control in the present embodiment.

FIG. 9 is a flowchart illustrating details of the display control of FIG. 7 according to the embodiment;

FIG. 10 is a flowchart illustrating a depth queuing process for the object in FIG. 9 in the present embodiment.

FIG. 11 shows a fog parameter P in the present embodiment.
It is a figure showing the example of.

FIG. 12 is a diagram for explaining a state of the CLUT change processing of FIG. 10 in the present embodiment.

FIG. 13 is a diagram illustrating a method of calculating a distance in depth queuing processing according to the third embodiment of the present invention.

[Explanation of symbols]

51 Game System 52 Game Console 53 Controller 54 CD-ROM (Compact Disc Read Only Memory)
55) Memory card 56 Monitor display 57 AV (Audio and Visual) cable 61 Disk holder 62 Open button 63 Power button 64 Reset button 65 Slot part 80 View point position 81 Target object (cloud polygon) 82-84 Operation character (flying object) Reference Signs List 100 bus 101 CPU (Central Processing Unit) 102 GTE (Geometric Transform Engine; graphics data generation processor) 103 Peripheral device 104 Main memory 105 OS-ROM (Operating System ROM) 106 MDEC (Motion Decoder; data decompression) Engine) 107 PIO (Parallel Input Output; extended parallel port) 108 SIO (Serial Input Output; extended serial port) 109 GPU (Graphics Processing Unit; graphics drawing processing processor) 110) Frame buffer 111 Sound processing unit (SPU) 112 Sound buffer 113 CD-ROM drive 114 CD-ROM decoder 115 CD-ROM buffer 116 Communication device 1110, 1120 Double buffer configuration drawing area 1130 1140 Display area 1150 Color lookup table (CLUT) 1
150 1160 Texture pattern area

Claims (12)

[Claims] 1. A game device comprising: a display unit capable of displaying a moving object including a polygon capable of moving in a virtual three-dimensional space in an arbitrary direction and an image texture-mapped to the polygon and other objects. When the moving object is within a predetermined range of the other object, a separation distance calculating unit that calculates a separation distance between the moving object and the other object, and based on the separation distance calculated by the separation distance calculating unit. And a display color correcting means for bringing a display color of an image forming the moving object closer to a predetermined display color. 2. A game device comprising: a moving body composed of a polygon movable in an arbitrary direction in a virtual three-dimensional space and an image texture-mapped to the polygon; and display means capable of displaying another object. When the moving object is within a predetermined range of the another object, the distance calculating unit calculates a distance in the screen height direction between the moving object and the other object, and the distance calculating unit calculates the distance. A game device comprising: a correction unit that brings each display color of an image forming the moving object closer to a display color set in advance for each of the other objects based on a separation distance. 3. The game device according to claim 1, wherein the moving object is a flying object, and the other object is an object simulating a cloud. 4. The display color is represented by a luminance color information value, and the correction means sets each luminance color information value of an image constituting the moving body in advance for each of the other objects. 4. The game apparatus according to claim 1, wherein color correction is performed so as to approach an information value. 5. The color correction for the moving object, wherein the display color of the moving object is substantially the display color of the other object when the separation distance between the moving object and the other object is lost. Claims 1 to 4
A game device according to any one of the above. 6. A game control method in a game apparatus comprising a display means capable of displaying a moving object including a polygon capable of moving in a virtual three-dimensional space in an arbitrary direction and an image texture-mapped to the polygon and other objects. When the moving object is within a predetermined range of the other object, a distance between the moving object and the other object is calculated, and the moving object is configured based on the calculated distance. A game control method comprising: bringing a display color of an image to be played closer to a predetermined display color. 7. A game control method in a game apparatus comprising a display unit capable of displaying a moving object including a polygon movable in an arbitrary direction in a virtual three-dimensional space and an image texture-mapped to the polygon, and another object. When the moving object is within a predetermined range of the other object, a distance in the screen height direction between the moving object and the other object is calculated, and the moving is performed based on the calculated distance. A game control method, wherein each display color of an image constituting a body is brought close to a display color set in advance for each of the other objects. 8. The game control method according to claim 6, wherein the moving object is a flying object, and the other object is an object simulating a cloud. 9. The display color is represented by a luminance color information value, and in the color correction of the moving object, each luminance color information value of an image forming the moving object is set in advance for each of the other objects. 9. The game control method according to claim 6, wherein the color correction is performed to approach each luminance color information value. 10. The color correction for the moving object, wherein the display color of the moving object is substantially the display color of the other object when the separation distance between the moving object and the other object is lost. The game control method according to any one of claims 6 to 9, wherein 11. A computer program sequence for realizing the function according to any one of claims 1 to 10. 12. A computer-readable storage medium storing a computer program for realizing the functions according to any one of claims 1 to 10.