JPH08212377A - Device and method for image information generation, processor and method for image information processing, and recording medium - Google Patents

Abstract

PURPOSE: To shorten the instruction word length and reduce the consumption of the capacity of a source video memory. CONSTITUTION: This system is provided with a main memory 53 which stores three-dimensional image data read out of a CD-ROM disk, a frame buffer 63 which stores characteristic data specified by polygons, a GTE(geometry transfer engine) 61 which converts the three-dimensional image data into two-dimensional image information by performing perspective conversion processing, a CPU 51 which synthesizs the two-dimensional image information and the information specifying the characteristics of the polygons to generate drawing instructions made into packets for every polygon, a GPU(graphics processing unit) 62 which draws the two-dimensional image information on the frame buffer 63 on the basis of the characteristic data specified by the drawing instructions, and a video output means 65 which reads the two-dimensional image data out of the frame buffer 63 in synchronism with a television synchronizing signal and supplies it to a display means such as a display device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image information generating apparatus and method for generating image information by information processing, an image information processing apparatus and method, and a recording medium on which image information is recorded.

[0002]

2. Description of the Related Art For example, in a home game machine, a personal computer device, a graphic computer device, or the like, a television receiver, a monitor receiver, or a C receiver.
Most of the images output and displayed on the RT display device or the like are two-dimensional. Basically, basically, a two-dimensional character or the like is appropriately arranged on a two-dimensional planar background and moved or changed. The image is displayed in such a form that the image is displayed.

However, in the above-described two-dimensional image display and video, there are restrictions on the background and characters that can be expressed, and their movements, and it is difficult to enhance the sense of presence in a game, for example.

Therefore, for example, a pseudo three-dimensional image or video is created by the following method. That is, as the character, images viewed from several directions are prepared, and one of these images is selected and displayed in accordance with a change in the viewpoint on the display screen, or a two-dimensional image is displayed. There is a method of expressing a pseudo three-dimensional image by superimposing the images in the depth direction.
Also, when generating or creating image data, a texture mapping method that attaches an image of a so-called texture (texture, background pattern) to a desired surface such as a polyhedron, or a so-called color lookup table for the color data of the image is used. A method of changing the display color by converting is adopted.

FIG. 44 shows an example of a schematic structure of a conventional home-use game machine. In FIG. 44, a CPU 391 composed of a microprocessor or the like takes out operation information of an input device 394 such as an input pad or a joystick via an interface 393 and a main bus 399. Simultaneously with the extraction of this operation information, the data of the three-dimensional image stored in the main memory 392 is transferred to and stored in the source video memory 395 by the video processor 396.

Further, the CPU 391 sends to the video processor 396 the read order of the image data for superimposing and displaying the images stored in the source video memory 395. The video processor 396 reads the image data from the source video memory 395 according to the order of reading the image data, and displays the images in a superimposed manner.

At the same time as displaying the image as described above, the audio processor 397 outputs the audio data corresponding to the displayed image stored in the audio memory 398 according to the audio information in the extracted operation information. To do.

FIG. 45 is a diagram showing a procedure for outputting a three-dimensional image using the data of the two-dimensional image in the home-use game machine having the configuration shown in FIG. In this FIG. 45,
A case where a cylindrical object is displayed as a three-dimensional image on a checkered background image will be described.

In the source video memory 395 of FIG. 45, a checkered background image 200 and the background image 200 are shown.
A rectangular image representing the cross-section of the upper cylindrical object in the depth direction,
Data of so-called sprites 201, 202, 203, 204 are stored. It should be noted that a polygon having a shape of a triangle or more is called a polygon, and a quadrangular polygon is called a sprite. Sprite 201 which is this rectangular image,
Portions other than the image of the cylindrical cross section on 202, 203, and 204 are drawn in a transparent color.

The sync generator 400 in the video processor 396 generates a read address signal that matches the sync signal of the image to be displayed. Further, the sync generator 400 sends the read address signal to the read address table 401 provided from the CPU 391 of FIG. 44 via the main bus 399. Further, the sync generator 400 reads the image data in the source video memory 395 according to the information from the read address table 401.

The read image data is the CP
Based on the superposition order of the images in the priority table 402 given by the U 391 via the main bus 399, the superposition processing unit 403 sequentially superposes the images. In this case, the background image 200 has the lowest rank, and the rectangular images 201, 202, 203, and 20.
Since the rank is higher in the order of 4, the images are sequentially superposed from the background image 200.

Next, in the transparent color processing unit 404, the images 201, 202, 203, 20 of the cross-sections of the cylinders that have been superimposed are displayed in order to display a portion other than the cylinders as a background image.
A process for making a portion other than the cylinder displayed by 4 transparent is performed.

By the above-described processing, the data of the two-dimensional image of the cylindrical object is output as the image data of the three-dimensional image VD0 shown in FIG.

[0014]

By the way, texture mapping, color designation by a color lookup table, and pixel data (for example, R,
Designation of the semi-transparent processing when the semi-transparent processing is performed by mixing the data of the three primary color data of G and B (the same applies below) and the pixel data of the image to be drawn next at a predetermined ratio α. In addition, when specifying whether to turn on / off the dither processing that adds noise to the color boundary and blurs it, CP
U391 outputs drawing commands for these, but specifies multiple textures and color lookup tables,
The command word length for designating the semi-transparent process, the dither process, etc. becomes long, and the amount of data held in the source video memory 395 also becomes large.

It should be noted that, for example, in the above-mentioned apparatus, the translucent processing is performed by the transparent processing unit 404 of the video processor 396.
In the transparent processing unit 404, the CPU 39
Based on the data of the mixture ratio α supplied from 1, the previous pixel data and the pixel data to be drawn are mixed at a predetermined mixture ratio α to perform the translucent process. In this case, in the conventional translucent process, the mixing ratio α
The value of is stored in the source video memory 395 for each pixel based on the drawing command. Therefore, if the mixing ratio is set finely, the number of bits representing the value of the mixing ratio α becomes large, the data amount of the drawing command becomes large, and the capacity in the source video memory 395 is consumed.

Therefore, according to the present invention, an image information generating apparatus and method, an image information processing apparatus and method capable of reducing the instruction word length and generating the image information capable of reducing the consumption amount of the source video memory, And a recording medium on which image information is recorded.

[0017]

In the image information generating apparatus and method of the present invention, three-dimensional image data composed of a plurality of polygons is stored, and characteristic data designated for each polygon is stored. The data is perspective-transformed and converted into two-dimensional image information corresponding to the display screen, and the information for designating the characteristics of the polygon and the two-dimensional image information are combined to generate a drawing command packetized for each polygon. By doing so, the above-mentioned problems are solved.

Further, in the image information processing apparatus and method of the present invention, three-dimensional image data composed of a plurality of polygons is stored, characteristic data designated for each polygon is stored, and perspective conversion is performed into the three-dimensional image data. Is converted into two-dimensional image information corresponding to the display screen, and the information for designating the characteristics of the polygon and the two-dimensional image information are combined to generate a drawing command packetized for each polygon. The two-dimensional image is drawn on the image memory based on the characteristic data specified by the generated drawing command, and the two-dimensional image data is read from the image memory in synchronization with the television synchronizing signal and supplied to the display means. Solve the problem.

Further, in the recording medium of the present invention, the three-dimensional image data composed of a plurality of polygons and the characteristic data designated for each polygon are packetized in a unit of a polygon and recorded. To solve.

That is, according to the present invention, the command word length is shortened by synthesizing the information designating the characteristics of the polygon and the two-dimensional image information to generate the packetized drawing command for each polygon. There is.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings.

First, an image processing system for generating and displaying three-dimensional graphics data using the image data generated by the image information generating method and the image information processing method of the present invention will be described. The image processing system of this configuration example is applied to, for example, a home game machine, a personal computer device, a graphic computer device, or the like, and the example of FIG. 1 shows an example applied to a home game device.

The image processing system according to the present configuration example stores data (for example, from an optical disk (for example, CD-ROM disk or the like) which is a recording medium of the present invention in which data in the image data format of the present invention described later is recorded. By reading and executing a game program or the like), a display (for example, a game or the like) according to an instruction from a user can be performed, and specifically, it has a configuration as shown in FIG. .

The image processing system of this configuration example is C
A main memory 53 for storing three-dimensional image data read from a D-ROM disc, and a frame for storing a color information table, texture pattern information, semi-transparency designating data, etc. as characteristic data designated for each polygon. The buffer 63 and the three-dimensional image data read from the CD-ROM disc are subjected to perspective conversion processing to obtain 2
A geometry transfer engine (GTE) 61 as a coordinate conversion means for converting into two-dimensional image information, and the two-dimensional image information and information designating characteristics of the polygon are combined to generate a drawing command packetized for each polygon. A CPU 51 as a drawing command generation means, a graphics processing unit (GPU 62) for drawing two-dimensional image information in a frame buffer 63 based on characteristic data specified by the generated drawing command, and a two-dimensional image from the frame buffer 63. The video output means 65 is provided for reading out the image data in synchronization with the television synchronizing signal and supplying it to the display means such as a display device.

That is, the image processing system includes a control system 50 including a central processing unit (CPU 51) and its peripheral devices (peripheral device controller 52, etc.) and a graphics processing unit (GPU 62) for drawing on a frame buffer 63. ) And the like, a sound system 70 including a sound processing unit (SPU 71) that generates a musical sound, a sound effect, and the like, and an optical disk (CD-ROM disk) drive 81 that is an auxiliary storage device. An optical disc control unit 80 for decoding reproduction information,
A communication control unit 90 for controlling input / output of an instruction input from a controller 92 for inputting an instruction from a user and input / output from an auxiliary memory (memory card 93) for storing game settings and the like
And a main bus B to which the control system 50 to the communication control unit 90 are connected.

The control system 50 includes a CPU 51, a peripheral device controller 52 for controlling interrupt control, time control, memory control, direct memory access (DMA) transfer, and the like, and a main storage device (RAM) of, for example, 2 megabytes ( Main memory) 53,
The main memory 53 and the graphic system 6
0, a ROM 54 of, for example, 512 kilobytes in which programs such as a so-called operating system for managing the sound system 70 and the like are stored.

The CPU 51 is, for example, a 32-bit RIS.
C (reduced instruction set computor) CPU,
The entire device is controlled by executing the operating system stored in the ROM 54. The CP
The U51 is equipped with an instruction cache and a scratchpad memory, and also manages the real memory.

The graphic system 60 is a CD-
A geometry transfer engine (GTE) including a main memory 53 for temporarily storing the data read from the ROM and a coordinate calculation coprocessor for performing processing such as coordinate conversion on the data stored in the main memory 53.
61, a graphics processing unit (GPU) 62 that performs drawing based on a drawing instruction (drawing command) from the CPU 51, and a frame buffer 63 of, for example, 1 megabyte that stores an image drawn by the GPU 62.
And an image decoder (hereinafter referred to as MDEC) 64 that decodes image data that has been subjected to orthogonal transform such as so-called discrete cosine transform and then compressed and encoded.

The GTE 61 includes, for example, a parallel operation mechanism for executing a plurality of operations in parallel, and as a coprocessor of the CPU 51, the GTE 61 performs coordinate conversion such as perspective conversion according to a calculation request from the CPU 51, normal vector and light source vector. Light source calculation by inner product calculation, for example, calculation of a fixed-point format matrix or vector can be performed at high speed.

More specifically, the GTE 61 can perform coordinate calculation of up to about 1.5 million polygons per second in the case of performing flat shading in which the same color is drawn on one triangular polygon. Therefore, in this image processing system, the CP
It is possible to reduce the load on the U51 and perform high-speed coordinate calculation. The polygon is
It is a minimum unit of a figure for forming a three-dimensional object displayed on a display, and is composed of a polygon such as a triangle or a quadrangle.

The GPU 62 operates according to a polygon drawing command from the CPU 51, and draws a polygon (polygon) on the frame buffer 63. This GPU62
Is capable of drawing up to about 360,000 polygons per second. In addition, this GPU62
Has a two-dimensional address space independent of the CPU 51, and the frame buffer 63 is mapped therein.

The frame buffer 63 is composed of a so-called dual port RAM, and is capable of simultaneously performing drawing from the GPU 62 or transfer from the main memory 53 and reading for display.

The frame buffer 63 has a capacity of, for example, 1 megabyte, and each has a 16-bit width 102.
4 is treated as a matrix of 512 vertical pixels.

An arbitrary display area of the frame buffer 63 can be output to the video output means 65 such as a display device.

In addition to the display area output as video output, the frame buffer 63 also has a GPU 62.
A CLUT area that is a second area in which a color lookup table (CLUT) that is referred to when drawing a polygon or the like is stored;
A texture area, which is a first storage area for storing a material (texture) to be inserted (mapped) in a polygon or the like drawn by, is provided. These CLUT area and texture area are dynamically changed according to the change of the display area and the like. That is,
The frame buffer 63 can execute drawing access to the area being displayed, and can also perform high-speed DMA transfer with the main memory 53.

In addition to the above flat shading, the GPU 62 pastes the Gouraud shading for interpolating from the colors of the vertices of the polygon to determine the color within the polygon and the texture stored in the texture area to the polygon. Texture mapping can be performed.

When performing these Gouraud shading or texture mapping, the GTE 61 is
A maximum of about 500,000 polygon coordinate operations can be performed per second.

Under the control of the CPU 51, the MDEC 64 decodes the image data of the still image or the moving image read from the CD-ROM disk and stored in the main memory 53, and stores it again in the main memory 53. Specifically, the MDEC64 can perform an inverse discrete cosine transform (inverse DCT) operation at high speed, and a color still image compression standard (so-called JPEG) read from a CD-ROM disc or a storage media type moving image coding standard ( So-called MPEG, but in this configuration example, only compressed data within a frame can be expanded.

The reproduced image data is GP
By storing it in the frame buffer 63 via U62, it can be used as the background of the image drawn by the GPU 62.

The sound system 70 has a CPU 51.
A sound reproduction processor (SPU) 71 for generating a musical sound, a sound effect, etc. based on an instruction from the CD-RO
A sound buffer 72 of, for example, 512 kilobytes in which data such as voices and musical tones read out from the M disc, sound source data, and the like are stored, and a speaker 73 as a sound output unit which outputs musical tones and sound effects generated by the SPU 71. It has and.

The SPU 71 uses 16-bit audio data as a 4-bit differential signal by adaptive differential encoding (ADP).
CM) ADPCM decoding function for reproducing the voice data, a reproduction function for generating a sound effect by reproducing the sound source data stored in the sound buffer 72, and the voice data stored in the sound buffer 72. It has a modulation function and the like for modulating and reproducing the same. That is, the SPU 71 is an ADPC having functions such as looping and automatic change of operating parameters with time as a coefficient.
It has 24 voices of M sound source built in and operates by an operation from the CPU 51. Also, the SPU 71 is a sound buffer 7.
2 manages its own address space mapped to C,
The ADPCM data is transferred from the PU 51 to the sound buffer 72, and the data is reproduced by directly passing the key-on / key-off and the modulation information.

By having such a function, the sound system 70 is used as a so-called sampling sound source that generates a musical sound, a sound effect, etc. based on the audio data recorded in the sound buffer 72 according to an instruction from the CPU 51. Is able to.

The optical disc controller 80 is a CD-R.
Disk drive device 81 for reproducing programs, data, etc. recorded on an optical disk which is an OM disk
And a decoder 8 for decoding a program, data, etc. recorded with an error correction (ECC) code added, for example.
2 and a buffer 83 of, for example, 32 kilobytes for temporarily storing reproduction data from the disk drive device 81. That is, the optical disc controller 80
Is composed of parts necessary for reading the disk, such as the drive device 81 and the decoder 82. Here, as the disc format, for example, CD
-Supports data such as DA and CD-ROM XA. The decoder 82 also constitutes part of the sound system 70.

As the audio data recorded on the disc reproduced by the disc drive device 81, the above-mentioned ADPCM data (ADPC of the CD-ROM XA is used.
In addition to M data), there is so-called PCM data obtained by analog / digital converting a voice signal.

As ADPCM data, for example, audio data recorded by representing the difference of 16-bit digital data by 4 bits is error-corrected and decoded by the decoder 82, and then supplied to the above-mentioned SPU 71, and the SPU 71 is supplied.
After processing such as digital / analog conversion at 71,
It is used to drive the speaker 73.

Audio data recorded as PCM data, for example, as 16-bit digital data is decoded by the decoder 82 and then used to drive the speaker 73. The audio output of the decoder 82 once enters the SPU 71, is mixed with this SPU output, and becomes the final audio output via the reverb unit.

Further, the communication control section 90 includes a communication control device 91 for controlling communication with the CPU 51 via the main bus B, and a controller 9 for inputting an instruction from a user.
2 and a memory card 93 for storing game settings and the like.

The controller 92 is an interface for transmitting the intention of the user to the application, and has, for example, 16 instruction keys for inputting an instruction from the user, and according to the instruction from the communication control device 91. The state of this instruction key is transmitted to the communication control device 91 about 60 times per second by synchronous communication. Then, the communication control device 91 transmits the state of the instruction key of the controller 92 to the CPU 51. The controller 92 has two connectors on the main body, and in addition, it is possible to connect a large number of controllers using a multi-tap.

As a result, the instruction from the user is sent to the CPU 5
1 is input to the CPU 51, and the CPU 51 performs processing according to an instruction from the user based on the game program or the like being executed.

Further, the CPU 51 transmits the stored data to the communication control device 91 when it is necessary to store the settings of the game being executed, the end of the game, or the results in the middle, and the like. 91 is the CPU 5
The data from 1 is stored in the memory card 93.

Since this memory card 93 is separated from the main bus B, it can be attached and detached while the power is on. As a result, game settings and the like can be stored in the plurality of memory cards 93.

Further, the system of this configuration example has a main bus B.
A 16-bit parallel input / output (I / O) port 101 and an asynchronous serial input / output (I / O) port 102 which are connected to each other.

The parallel I / O port 101 can be connected to peripheral devices, and the serial I / O port 102 can be used to communicate with other video game devices. To be able to do.

By the way, the main memory 53, the GPU
A large amount of image data needs to be transferred at high speed between the 62, the MDEC 64, the decoder 82, and the like when reading a program, displaying an image, drawing, or the like.

Therefore, in this image processing system, the main memory 53 and GP are controlled by the peripheral device controller 52 without the intervention of the CPU 51 as described above.
It is possible to perform so-called DMA transfer for directly transferring data between the U62, MDEC 64, the decoder 82 and the like.

This allows the CPU 51 to transfer data.
It is possible to reduce the load and to perform high-speed data transfer.

In this video game device, when the power is turned on, the CPU 51 executes the operating system stored in the ROM 54.

When executed by this operating system, the CPU 51 controls the graphic system 60, the sound system 70 and the like.

When the operating system is executed, the CPU 51 initializes the entire device such as operation confirmation and then controls the optical disc controller 80 to execute a game or the like recorded on the optical disc. Run the program.

By executing the program such as this game,
The CPU 51 controls the graphic system 60, the sound system 70, etc. according to an input from the user to control the display of images, the generation of sound effects, and the generation of musical sounds.

Next, the display on the display in the image processing system of this configuration example will be described.

The GPU 62 has a frame buffer 63.
The content of the arbitrary rectangular area in 4 is displayed as it is on the display of the video output means 65, such as a CRT. This area is hereinafter referred to as a display area. The relationship between the rectangular area and the display on the display screen is as shown in FIG.

Further, the GPU 62 supports the following 10 screen modes.

[Mode] [Standard resolution] Remark Mode 0 256 (H) × 240 (V) Non-interlace mode 1 320 (H) × 240 (V) Non-interlace mode 2 512 (H) × 240 (V) Non-interlace mode 3 640 (H) × 240 (V) Non-interlace mode 4 256 (H) × 480 (V) Interless mode 5 320 (H) × 480 (V) Interless mode 6 512 (H) × 480 (V) Interless mode 7 640 (H) × 480 (V) Interless mode 8 384 (H) × 240 (V) Non-interlace mode 9 384 (H) × 480 (V) Interless screen size or display The number of pixels on the screen is variable, and as shown in FIG. 3, the display start position (coordinates (DTX, DTY)) and the display end position (coordinates (DBX, DBY)) can be specified independently in the horizontal and vertical directions. You can

The relationship between the value that can be designated for each coordinate and the screen mode is as follows. The coordinate values DTX and DBX must be set to be a multiple of 4. Therefore, the minimum screen size is 4 pixels wide,
2 pixels vertically (when non-interlaced) or 4 pixels (when interlaced).

[Specifiable Range of X Coordinate] [Mode] [DTX] [DBX] 0,40 to 276 4 to 280 1,5 0 to 348 4 to 352 2,6 0 to 556 4 to 560 3,7 0 to 700 4 to 704 8,9 0 to 396 4 to 400 [Specifiable range of Y coordinate] [Mode] [DTY] [DBY] 0 to 3, 8 0 to 241 2 to 243 4 to 7, 90 0 480 4 to 484 Next, the GPU 62 sets, as a mode relating to the number of display colors,
16-bit direct mode (32768 colors), 24
It supports two bit direct modes (full color). 16-bit direct mode (1 below)
The 6-bit mode) is a 32768 color display mode. In this 16-bit mode, the number of display colors is limited as compared with the 24-bit direct mode (hereinafter referred to as the 24-bit mode), but the color calculation inside the GPU 62 at the time of drawing is performed in 24 bits, and the gradation is simulated. Since it also has a so-called dither function that increases the number of colors, pseudo full-color (24-bit color) display is possible. Also,
The 24-bit mode is a 16777216 color (full color) display mode. However, the frame buffer 6
It is only possible to display (bitmap display) the image data transferred to the GPU 3, and it is not possible to execute the drawing function of the GPU 62. Here, the bit length of one pixel is 24
Although it becomes a bit, it is necessary to specify the value of the coordinate and the display position on the frame buffer 63 with 16 bits as a reference. That is, 640 × 480 24-bit image data is treated as 960 × 480 in the frame buffer 63. Further, it is necessary to set the coordinate value DBX to be a multiple of 8. Therefore, the minimum screen size in this 24-bit mode is 8 horizontal pixels × 2 vertical pixels.

The GPU 62 has the following drawing function.

First, for a polygon or sprite of 1 × 1 dot to 256 × 256 dots, a 4-bit CLU is used.
T (4 bit mode, 16 colors / polygon, sprite)
And 8-bit CLUT (8-bit mode, 256 colors / polygon, sprite), 16-bit CLUT (16-bit mode, 32768 colors / polygon, sprite) And polygons such as quadrangles) are drawn by specifying the coordinates of each vertex on the screen, and the inside of the polygon or sprite is filled with the same color. Low shading, polygon drawing function that prepares two-dimensional image data (texture pattern, especially for sprite is called sprite pattern) on the surface of polygon or sprite, and performs texture mapping, and linear drawing function that can gradation And C Transfer from U51 to the frame buffer 63, the transfer from the frame buffer 63 to the CPU 51, the image transfer function of the transfer, etc. to the frame buffer 63 from the frame buffer 63, as other functions,
A function that takes the average of each pixel and makes it semi-transparent (from the fact that the pixel data of each pixel is mixed at a predetermined ratio α,
There is a blending function), a dither function that blurs noise on the color boundary, a drawing clipping function that does not display the area beyond the drawing area, and an offset specification function that moves the drawing origin according to the drawing area.

The coordinate system for drawing is 11 with a sign.
Bit is used as a unit, and X- and Y-1024
It takes a value of +1023. Also, as shown in FIG. 4, the size of the frame buffer 63 in this configuration example is 1024 ×
Since it is 512, the protruding portion is folded back. The origin of the drawing coordinates can be set to the frame buffer 6 by the function of arbitrarily setting the offset value of the coordinate value.
It can be changed freely within 3. Drawing is performed only on an arbitrary rectangular area in the frame buffer 63 by the drawing clipping function.

Further, the GPU 62 has a maximum of 256 × 25.
It supports a 6-dot texture, and you can freely set the vertical and horizontal values.

The image data (texture pattern or sprite pattern) to be attached to the polygon or sprite is, as shown in FIG.
Place it in the non-display area. The texture pattern or sprite pattern is transferred to the frame buffer 63 prior to executing the drawing command. As many texture patterns or sprite patterns as 256 pages can be placed on the frame buffer 63 as one page, and this 256 * 256 area is called a texture page. The location of one texture page is the parameter for designating the position (address) of the texture page called TSB of the drawing command.
It is determined by specifying the page number.

For the texture pattern or sprite pattern, 4-bit CLUT (4-bit mode), 8-bit CLUT (8-bit mode), 16-bit CLUT
There are three types of color modes (16-bit mode). In the 4-bit CLUT and 8-bit CLUT color modes, C
Use the LUT.

As shown in FIG. 6, the CLUT means that the R, G and B values of the three primary colors representing the finally displayed color are 16
256 to 256 are arranged on the frame buffer 63. Each R, G, B value is numbered in order from the left on the frame buffer 63, and the texture pattern or sprite pattern represents the color of each pixel by this number. Further, the CLUT can be selected in units of polygons or sprites, and it is possible to have an independent CLUT for all polygons or sprites. Further, in FIG. 6, one entry has the same structure as one pixel in 16-bit mode, and therefore one set of CLU
T is equal to 1 × 16 (in 4-bit mode) and 1 × 255 (in 8-bit mode) image data. The storage position of the CLUT in the frame buffer 63 is determined by specifying the coordinates of the left end of the CLUT to be used as a parameter for specifying the position (address) of the CLUT called CBA in the drawing command.

Further, the concept of polygon or sprite drawing can be schematically shown as shown in FIG. In the example of FIG. 7, sprites are used as an example. Further, U and V of the drawing command in FIG. 7 are parameters for specifying which position on the texture page in horizontal (U) and vertical (V), and X and Y are parameters for specifying the position of the drawing area. is there.

Further, the GPU 62 uses a method called frame double buffering as a moving image display method. This frame double buffering means, as shown in FIG. 8, that two rectangular areas are prepared on the frame buffer 63, the other side is displayed while drawing in one area, and 2 is displayed when drawing is completed. The two areas are exchanged for each other. This makes it possible to avoid displaying the rewriting state. The buffer switching operation is performed within the vertical blanking period. Further, in the GPU 62, since the rectangular area to be drawn and the origin of the coordinate system can be freely set, it is possible to realize a plurality of buffers by moving these two.

Next, the instruction format (instruction set) output by the CPU 51 at the time of texture mapping and Gouraud shading in the image processing system of this configuration example will be described.

First, the drawing command format will be described.

As the command format (1), the drawing command is sent to the CPU.
In order for 51 to specify directly, a packet structure as shown in FIG. 9 is used. In FIG. 9, R, G, and B represent luminance values shared by all the vertices of the polygon, and Xn and Yn represent two-dimensional coordinates of the vertex n in the drawing space. For this instruction format (1), for example, (X0, Y0)-(X1, Y
1)-(X2, Y2), the area surrounded by brightness values (R,
In the case of an instruction to paint with G, B), the processing becomes as shown in FIG. 10, and the coordinate offset of the subsequent drawing is (0FX, 0
Change to FY).

Next, as the instruction format (2), as shown in FIG. 11, a packet provided with a tag in which the number of words of the instruction and a pointer to the next instruction are added to the drawing instruction of the type of the instruction format (1). Use configuration. Note that SIZE in FIG. 11 indicates the word length of the instruction (4 in this example), and ADDR indicates the start address of the next instruction. As a result, a plurality of instruction sequences that are not placed in consecutive areas on the frame buffer 63 can be connected and executed at once. In this case, the drawing command is transferred by dedicated hardware, and the CPU 5
1 is not involved at all. In addition, in this instruction format (2), for example, (X0, Y0)-(X1, Y1)-(X
2, Y2), the command to fill the area surrounded by the brightness values (R, G, B) is as shown in FIG. 12, and the coordinate offset for the subsequent drawing is changed.

Next, the data format of the present invention will be described in detail.

The GPU 62 sequentially executes a packetized command (drawing command) sequence supplied from the host (CPU 51). The following symbols will be used in the following description.

CODE command code call option R, G, B Luminance value shared by all vertices Rn, Bn, Gn Luminance value of vertex n Xn, Yn Two-dimensional coordinates Un, Vn of vertex n in the drawing space Two-dimensional coordinates of the corresponding point in the texture soak space CBA (CLUT BASE ADDRESS) CLUT start address TSB (TEXTURE SOURCE BASE) Texture page start address and additional information such as texture type. Xn and Yn are 16 bits in the command. Are allocated, but the lower 11 bits are actually effective. The bit assignments of CBA and TSB are shown in FIG.
And as shown in FIG. Note that CLX in FIG. 13 is the X-axis start address (6 bits) of the CLUT and is CLY.
Is the start address (9 bits) of the Y-axis of the CLUT.
The TSB shown in FIG. 14 has the same bit assignment as the lower bit of the MODE command (see the setting command described later). TPF in this FIG. 14 is the pixel depth of the texture pattern, and when it is 00, it is in the 4-bit mode (C
LUT), when 01, 8-bit mode (CLUT), 1
When 0, the 16-bit mode (CLUT) is set. 14
ABR in the figure indicates a semi-transparent rate, and when it is 00, it is 0.50.
× F + 0.50 × B, 01 = 1.00 × F + 1.0
0 x B, when 10 0.50 x F + 1.00 x B, 11
Then 0.25 × F + 1.00 × B (F corresponds to the foreground and B corresponds to the background). Further, TBX in FIG. 14 is a base address in the x direction of the texture pattern source space (upper 5 bits), and TBY is a base address in the y direction of the texture pattern source space (upper 1 bit).

Next, the triangle drawing command (command code = 1h) gives vertex information as a command argument after the command code (including options), as shown in FIG. The number of arguments and the format differ depending on the option. When IIP in FIG. 15 is 0, a triangle is drawn (flat shading) with one type of luminance value (R, G, B), and when 1 is 1, the luminance values of three vertices are linearly interpolated to form a triangle. Draw (Gouraud shading). C
When NT is 0, one triangle is drawn with three vertices following the command, and when NT is 1, a connected triangle is drawn (quadrangle) with four vertices following the command. When TME is 0, texture mapping is off, and when it is 1, texture mapping is on. When ABE is 0, the translucent process is off, and when it is 1, the translucent process is on. TGE is TM
It is valid only when E, when 0 is displayed, the texture pattern is multiplied by the brightness value, and when 1 is displayed, only the texture pattern is drawn. There are 2 ³ types of data structure, and a part thereof is shown in FIG.

Next, a line drawing command (command code =
As shown in FIG. 17, 2h) gives end point information as a command argument after the command code (including options). The number of arguments and the format differ depending on the option. When the IIP in FIG. 17 is 0, the pixel is drawn with the specified brightness value, and when it is 1, the brightness values of the two vertices are linearly interpolated by the displacement in the long axis direction of the line segment and drawn. C
When NT is 0, the straight line is 1 at the two end points following the command.
And draw a connecting straight line when 1. When ABE is 0, the translucent process is off, and when it is 1, the translucent process is on.

When drawing a connecting straight line, a termination code (TERMINATION CODE) indicating the end of the command is required at the end. The format of the termination code is as shown in FIG. 18, and an example of the data structure is shown in FIG. Since only the lower 11 bits of the coordinate values Xn and Yn are valid, the coordinate values do not collide with the termination code in normal use.

Next, the sprite drawing command (command code = 3h) is as shown in FIG. 20, and a data structure example is shown in FIG. With this sprite drawing command,
After the command code (including options), the brightness information, the lower left corner of the rectangular area, the upper left corner of the texture source space, and the width and height of the rectangular area are given as command arguments. The number of arguments and the format differ depending on the option. In addition, since the sprite drawing command processes two pixels at the same time, Un must specify an even number (the lower 1 bit has no meaning). It should be noted that when TME in FIG.
When, texture mapping is turned on. ABE is 0
When it is, the semitransparent process is turned off. When it is 1, the semitransparent process is turned on. When TGE (valid only for TME) is 0, the texture pattern (sprite pattern in this case) is multiplied by a certain luminance value and drawn, and when it is 1, only the texture pattern (sprite pattern) is drawn. SIZ designates the size of the rectangular area, 00 designates it in the H and W fields, 01 designates 1 × 1,
When it is 10, the size is 8 × 8, and when it is 11, the size is 16 × 16.

Next, as a local transfer command (command code = 4h), that is, a transfer command between frame buffers, for example, a rectangular area transfer command is shown in FIG.
The data structure is as shown in FIG. 23. This rectangular area transfer command gives the upper left end point of the source rectangular area, the upper left end point of the destination rectangular area, and the width and height of the rectangular area as command arguments after the command code (including options). In the figure, CODE indicates a command code and option, and S
X and SY are the coordinates of the upper left corner of the source (transfer source) rectangular area, DX and DY are the coordinates of the upper left corner of the destination (transfer destination) rectangular area, W is the width of the rectangular area, and H is the rectangular area. Indicates the height.

Next, the host local transfer command (command code = 5h) is as shown in FIG. 24, and the data structure is as shown in FIG. This host local transfer command is a transfer command between the CPU and the frame buffer, and gives, for example, the upper left end point of the destination rectangular area, the width and height of the rectangular area, and the transfer data as a command argument with a command code (including options). . In the figure, CODE represents a command code and option, DX and DY are coordinates of the upper left end point of the destination (transfer destination) rectangular area, W is the width of the rectangular area, and H is the height of the rectangular area. FRAM0 to FRAMn indicate transfer data.

Next, the local host transfer command (command code = 6h) is as shown in FIG. 26, and the data structure is as shown in FIG. This local host transfer command is a transfer command between the frame buffer and the CPU, and gives, for example, the upper left end point of the source rectangular area and the width and height of the rectangular area as command arguments.
In the figure, CODE indicates a command code and option, SX and SY indicate the coordinates of the upper left end point of the source (transfer source) rectangular area, W indicates the width of the rectangular area, and H indicates the height of the rectangular area. Also, a command (parameter read) using a general-purpose port cannot be executed during transfer to the local host.

Next, the setting command (command code = 7
As shown in FIG. 28, h) is a command for setting various parameter registers. This gives the command code (including address) and the set value. In addition, CO in the figure
DE indicates a command code and option, and ADDR
Indicates an address, and DATA indicates a parameter.

Among the setting commands, the mode (MODE) setting command (address = 1h) is shown in FIG.
9, the TPF in the figure indicates the pixel depth of the texture pattern (sprite pattern in the case of sply), and when it is 00, it is in the 4-bit mode (CLU).
T), 01 indicates 8-bit mode (CLUT), and 10 indicates 16-bit mode (direct). When DTD is 0, it indicates that dithering is not performed, and when it is 1, it indicates that dithering is performed. When the DFE is 0, only the fields that are not displayed during interlacing are drawn, and when the DFE is 1, both fields are drawn during interlacing. ABR indicates a semi-transparent rate, and when it is 00, 0.50 x
F + 0.50 x B, 01 = 1.00 x F + 1.00 x B = 1
When 0, 0.50 x F + 1.00 x B, when 11 is 0.25 x F +
Indicates 1.00 × B (F corresponds to the foreground and B corresponds to the background). TBX indicates the texture pattern source space x direction base address (upper 4 bits), and TBY indicates the texture pattern source space y direction base address (upper 1 bit).

Of the setting commands, a texture pattern repeat (TEXTURE PATTERN REPEAT) setting command
(Address = 2h) has the configuration shown in FIG. 30, where TUM is a texture pattern U coordinate repeating mask,
The TVM uses a texture pattern V-coordinate repeating mask,
TUA indicates a texture pattern repetition U upper fixed address, and TVA indicates a texture pattern repetition V upper fixed address.

Next, among the setting commands, a clipping start (CLIPPING START) setting command (address = 3
h) and the clipping end (CLIPPING END) setting command (address = 4h) have the configuration shown in FIG. 31A shows a clipping start setting command, and FIG. 31B shows a clipping end setting command. Klippig is valid for polygon (triangle) / straight line / sprite drawing commands and does not affect host local / local local transfer. CTX in the figure is the X address (1
0 bit), CTY is the Y address (9 bits) of the upper left end point of clipping, CBX is the X address of the lower right end point of clipping (10 bits), and CBY is the Y address of the lower right end point of clipping (9 bits). Indicates.

Next, the offset (OFF
The SET) setting command (address = 5h) has the configuration shown in FIG. 32. In the figure, OFX is the coordinate offset value (X) (11 bits with a sign), and OFY is the coordinate offset value (Y).
(Signed 11 bits) is shown.

Next, the special command (address = 0h) is
With the configuration shown in FIG. 33, special commands include an interrupt request enable command and a NOP command described later. This is specified by command and option.

Of the above special commands, IRQ (interrupt
request) generation command has the configuration shown in FIG.
Assert IRQ pin.

Of the special commands, NOP (no operat
The (ion) command has the configuration shown in FIG. 35 and does nothing at this time.

Further, among the special commands, the cache flush command has the structure shown in FIG. 36 and flushes the contents of the texture cache and the CLUT. However, when the host local transfer and the local host transfer are performed, only the texture cache is automatically flushed (the CLUT is saved).

Of the special commands, the block write command has the structure shown in FIG. 37, and the data structure is as shown in FIG. This command quickly initializes the rectangle. Note that W and H in the figure indicate the size of the rectangular area. Although R, G, and B are specified by 8 bits, the value actually written in the memory is only the above 4 bits. The start position (X0, Y0) and size (H, V) of the rectangular area are both specified by an integral multiple of 32 pixels. The lower 4 bits have no meaning.

By the way, the GPU 62 has a dedicated local memory, which is a frame buffer for display and is also used as an area for a texture pattern and a texture CLUT. That is, this local memory is the frame buffer 63 of FIG.

As addressing to the frame buffer 63, the area drawn by the GPU 62 is 0 to 1 in the x direction.
023 is the size in the y direction 0 to 511, corresponding to the 1-dimensional address of the local memory (frame buffer 63) is a one-dimensional address _{= X A + Y A × 1024} . However, in the 24-bit mode, one-dimensional address = (3/2) × X _A + Y _A × 1024.

Since the page size of the frame buffer 63 is fixed at 1024, X _A actually corresponds to the column address and Y _A corresponds to the row address. Drawing can be performed anywhere in the frame buffer 63, and any area in the frame buffer 63 can be displayed. However, the size that can be displayed is limited depending on the mode.
Further, the addresses X _A and Y _A of the frame buffer 63 are designated by 10-bit and 9-bit unsigned codes, respectively. However, the coordinate values x and y used for drawing the polygon are designated by 11-bit signed codes. Further, the drawing is performed in the frame buffer 63 by using the value obtained by adding the offset (OFX, OFY) designated by the offset register to (x, y) as an address. However, the size of the mounted frame memory is 1024 x 512
It is not drawn in the area beyond.

Next, the pixel format will be described. The GPU 63 uses R:
24-bit mode of G: B = 8: 8: 8 (bit),
The 16-bit mode of R: G: B = 5: 5: 5 (bits) is supported as shown in FIG. However, 2
The 4-bit mode is a display only and cannot be drawn.
In the figure, R indicates a red component, G indicates a green component, B indicates a blue component, and STP indicates an overwrite flag. Depending on the mode, when STP is set to 1, the content of the pixel is saved even if new drawing is executed on the pixel thereafter. This makes it possible to retain the first drawn pattern.

Next, according to this configuration example format, when drawing a polygon / sprite, it is possible to perform texture mapping using the pattern (texture pattern or sprite pattern) placed on the texture page. Become. In the following description, (x, y) represents coordinates in the drawing space, and (u, v) represents coordinates in the texture page space.

First, the area in the frame buffer in which the texture pattern or sprite pattern is placed is called a texture page or texture page space. As the pixel format of the texture pattern and the sprite pattern, there are three kinds of modes of 4, 8 and 16 bits / pixel. The 4-bit and 8-bit modes are pseudo colors, and the 16-bit modes are direct colors. These modes can be switched for each polygon or sprite. For texture patterns and sprite patterns other than the 16-bit mode, some pixels are packed in one word. Therefore, the pixels of the texture pattern or sprite pattern and the addresses of the frame buffer do not have a one-to-one correspondence. Therefore, it is necessary to be careful when specifying the address when loading the texture pattern or sprite pattern in the frame buffer. The pixel format in each mode is as shown in FIG. 40 below.

4 bits shown in (a) and (b) of FIG.
In the case of pixel, 8 bits / pixel, the pixel value is not the actual brightness value but the index into the CLUT. From this point, the pixel is converted to the 16-bit color format as shown in FIG. 41 using the CLUT.
In the figure, R indicates a red component, G indicates a green component, B indicates a blue component, and STP indicates a semitransparent flag.

In the case of 16 bits / pixel, CL
The UT is not used and is used directly as the luminance value. This format is as shown in FIG. 42 similar to FIG. In the figure, R indicates a red component, G indicates a green component, B indicates a blue component, and STP indicates a semitransparent flag. STP
Pixels for which 1 is designated are rendered semi-transparent, and the semi-transparent rate can be set independently for each polygon or sprite.

Further, in the 4-bit mode and 8-bit mode, the texture CLUT can be used to determine the color (luminance) of the texture. You can have many texture CLUTs in the frame buffer, but you can use them with one drawing command.
Is limited to one type. The CLUT can be selected by designating the start address on the frame buffer. The head address is specified by the command argument CBA.

The GPU 62 has a texture CLUT cache therein. Before drawing a polygon, if there is no necessary CLUT in the cache, a new CLUT is loaded. Therefore, when the same CLUT is repeatedly used, the drawing becomes faster by the load of the CLUT.

Next, the flow of image information generation and image information processing to which the system and format of the present configuration example as described above are applied will be described with reference to FIG.

Referring to FIG. 43, in step S10, the three-dimensional image data composed of a plurality of polygons is converted into CD-RO.
The data is read from the M disk and stored in the main memory 53. In step S11, a color information table, texture pattern information, and semi-transparency specifying data are stored in the frame buffer 63 as characteristic data specified for each polygon.

In step S12, coordinate conversion processing such as perspective conversion is performed in the graphic system 60 to generate two-dimensional image information from the three-dimensional image data, and in the next step S13, the two-dimensional image information and each polygon are generated. To draw a packetized drawing command for each polygon.

In step S14, a two-dimensional image is drawn in the frame buffer 63 based on the characteristic data designated by the generated drawing command.

In the next step S15, the two-dimensional image data is read from the frame buffer 63 in synchronization with the television synchronizing signal and supplied to the display device via the video output means 65.

As described above, in the configuration example of the present invention, the rendering command can be shortened by providing the texture coordinate with an offset to shorten the word length of the texture coordinate.
Also, texture CL for each drawing polygon or sprite
Since the UT can be specified, the number of colors is not limited even if the pseudo color texture is used. Further, since the translucency rate is specified for each drawing polygon or sprite, information for specifying the translucency rate for each pixel is not necessary. Furthermore, since the texture coordinates and the vertex coordinates can be designated at the same time, the hue of the texture map polygon can be changed without changing the texture pattern itself. Furthermore, since a value of minus (subtraction) can be designated as the semi-transparency, instead of the normal value of 0 to 1.0, the brightness value of the pixel already drawn can be subtracted. In addition, when the vertex coordinates of a polygon to be drawn are specified using connected vertices, by limiting the number of connected vertices to 3 and 4, it is possible to eliminate the need for a terminal code and shorten the drawing command length. It will be possible. Further, since the coordinate offset of drawing can be changed in the middle of the drawing command, it is possible to facilitate parallel movement on the display screen in units of objects (realistic objects, that is, objects to be drawn).

Further, in the configuration example of the present invention, when the image is used as a texture pattern, the most significant bit of the pixel specifies the on / off of the translucency, so that a specific value for setting the translucency is specified. No need for alpha planes. Further, when the image is used as the background screen, the prohibition / permission of overwriting can be designated by the most significant bit of the pixel, so that the near view can be drawn first. Also,
When an image is used as a texture pattern, a plurality of modes (the above-mentioned 4-bit mode, 8-bit mode, 16-bit mode, etc.) can be selected according to the color mode. Color schemes can be mixed. Furthermore, various texture types can be selected depending on the quality of the frame buffer and the texture image.

[0117]

As is apparent from the above description, according to the present invention, three-dimensional image data composed of a plurality of polygons is stored, and characteristic data designated for each polygon is stored. Is transformed into two-dimensional image information corresponding to the display screen by perspective transformation, and the two-dimensional image information and the information for designating the characteristics of the polygon are combined to generate a drawing command packetized for each polygon. As a result, it is possible to generate the image information that can reduce the instruction word length and the consumption amount of the source video memory.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing a schematic configuration of an image processing system to which the present invention is applied.

FIG. 2 is a diagram for explaining display on a display.

FIG. 3 is a diagram for explaining display settings on a display.

FIG. 4 is a diagram for explaining a function of drawing clipping.

FIG. 5 is a diagram illustrating a texture page.

FIG. 6 is a diagram for explaining a CLUT structure.

FIG. 7 is a diagram for explaining the concept of polygon or sprite drawing.

FIG. 8 is a diagram for explaining frame double buffering.

FIG. 9 is a diagram showing a configuration of a command format (1) of a drawing command.

FIG. 10 is a diagram showing an example of performing coordinate offset in command format (1).

FIG. 11 is a diagram showing a configuration of a command format (2) of a drawing command.

FIG. 12 is a diagram showing an example of performing coordinate offset in command format (2).

FIG. 13 is a diagram showing the structure of a CBA.

FIG. 14 is a diagram showing a structure of a TSB.

FIG. 15 is a diagram showing a format of a triangle drawing command.

FIG. 16 is a diagram showing a data configuration example of a triangle drawing command.

FIG. 17 is a diagram showing a format of a straight line drawing command.

FIG. 18 is a diagram showing a format of a termination code necessary for drawing a connecting straight line.

FIG. 19 is a diagram showing a data configuration example of a straight line drawing command.

FIG. 20 is a diagram showing a format of a sprite drawing command.

FIG. 21 is a diagram showing a data configuration example of a sprite drawing command.

FIG. 22 is a diagram showing a format of a local transfer command.

FIG. 23 is a diagram showing a data configuration example of a local transfer command.

FIG. 24 is a diagram showing a format of a host local transfer command.

FIG. 25 is a diagram showing a data configuration example of a host local transfer command.

FIG. 26 is a diagram showing a format of a local host transfer command.

[Fig. 27] Fig. 27 is a diagram illustrating a data configuration example of a local host transfer command.

FIG. 28 is a diagram showing a format of a setting command.

FIG. 29 is a diagram showing a format of a mode setting command.

FIG. 30 is a diagram showing a format of a texture pattern repeat setting command.

FIG. 31 is a diagram showing a format of a clipping start and clipping end setting command.

FIG. 32 is a diagram showing a format of an offset setting command.

FIG. 33 is a diagram showing a format of a special command.

FIG. 34 is a diagram showing a format of an IRQ generation command.

FIG. 35 is a diagram showing a format of a NOP command.

FIG. 36 is a diagram showing a format of a cache flush command.

FIG. 37 is a diagram showing a format of a block write command.

[Fig. 38] Fig. 38 is a diagram illustrating a data configuration example of a block write command.

FIG. 39 is a diagram showing a pixel format.

FIG. 40 is a diagram showing a texture pattern format.

FIG. 41 is a diagram showing a 16-bit color format in which 4 bits / pixel and 8 bits / pixel are converted using a CLUT.

FIG. 42 is a diagram showing a 16-bit / pixel format.

[Fig. 43] Fig. 43 is a flowchart showing the flow of processing of image information generation and image information processing applied in the system of the present configuration example.

[Fig. 44] Fig. 44 is a block circuit diagram illustrating a configuration example of a conventional image creating device (home game machine).

FIG. 45 is a diagram used to describe an image creating method by a conventional image creating apparatus.

[Explanation of symbols]

 51 CPU 52 Peripheral Device Controller 53 Main Memory 54 ROM 60 Graphic System 61 Geometry Transfer Engine (GTE) 62 Graphics Processing Unit 63 Frame Buffer 64 Image Decoder (MDEC) 65 Video Output Means (Display Device) 70 Sound System 71 Sound Processing Unit (SPU) 72 Sound buffer 73 Speaker 80 Optical disk controller 81 Disk drive device 82 Decoder 83 Buffer 90 Communication controller 91 Communication controller 92 Controller 93 Memory card 101 Parallel I / O port 102 Serial I / O port

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masayoshi Tanaka, 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) In-house inventor Sadaharu Toyo, 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation

Claims (23)

[Claims] 1. A first storage means for storing three-dimensional image data composed of a plurality of polygons, a second storage means for storing characteristic data designated for each polygon, and a perspective for the three-dimensional image data. A conversion means for performing conversion to convert into two-dimensional image information corresponding to a display screen, information for designating characteristics of the polygon and the two-dimensional image information are combined, and a drawing command packetized for each polygon. And a drawing command generating means for generating the image information. 2. The second storage means stores a color information table specified for each polygon, and the drawing command generation means combines the information specifying the color information table and the two-dimensional image information. The image information generating apparatus according to claim 1, wherein the drawing command is packetized for each polygon. 3. A third storage means for storing texture pattern information to be attached to each polygon is further provided, wherein the drawing command generating means specifies information for the color information table and information for specifying the texture pattern information. The image information generating apparatus according to claim 2, wherein a packetizing drawing command is generated for each polygon by synthesizing the two-dimensional image information with the two-dimensional image information. 4. The second storage means stores semi-transparency designating data designated for each polygon, and the drawing command generating means synthesizes the semi-transparency designating data and the two-dimensional image information. The packetized drawing command is generated for each polygon.
The described image information generation device. 5. The image information generating apparatus according to claim 4, wherein a plurality of types of translucency are determined according to modes. 6. Three-dimensional image data composed of a plurality of polygons is stored, characteristic data designated for each polygon is stored, and the three-dimensional image data is perspective-transformed to obtain a two-dimensional image corresponding to a display screen. An image information generation method characterized by converting the image information into image information, synthesizing the information designating the characteristics of the polygon and the two-dimensional image information, and generating a drawing command packetized for each polygon. 7. A color information table specified for each polygon is stored as characteristic data specified for each polygon, and the information specifying the color information table and the two-dimensional image information are combined to create a polygon. 7. The image information generating method according to claim 6, wherein a drawing command packetized for each is generated. 8. The texture pattern information to be attached to each polygon is further stored, and the information for designating the color information table, the information for designating the texture pattern information, and the two-dimensional image information are combined, and each of the polygons is synthesized. The image information generating method according to claim 7, wherein a packetized drawing command is generated. 9. A semi-transparency designating data designated for each polygon is stored as characteristic data designated for each polygon, and the semi-transparency designating data and the two-dimensional image information are combined to form a polygon. 7. The image information generating method according to claim 6, wherein a drawing command packetized for each is generated. 10. The image information generating method according to claim 9, wherein a plurality of types of translucency are determined according to modes. 11. A first storage means for storing three-dimensional image data composed of a plurality of polygons, a second storage means for storing characteristic data designated for each polygon, and a perspective for the three-dimensional image data. A conversion means for performing conversion to convert into two-dimensional image information corresponding to a display screen, information for designating characteristics of the polygon and the two-dimensional image information are combined, and a drawing command packetized for each polygon. And a drawing means for drawing a two-dimensional image in the image memory based on the characteristic data specified by the generated drawing instruction, and a two-dimensional image data from the image memory into a television synchronizing signal. An image information processing apparatus comprising: a supply unit that synchronously reads and supplies the display unit. 12. The second storage means stores a color information table specified for each polygon, and the drawing command generation means combines the information specifying the color information table and the two-dimensional image information. Then, the drawing command packetized for each polygon is generated, and the drawing means draws a two-dimensional image in the image memory based on the color information table designated by the generated drawing command. The image information processing apparatus according to claim 11. 13. A third storage means for storing texture pattern information to be attached to each polygon is further provided, wherein the drawing command generating means is information for designating the color information table and information for designating the texture pattern information. 13. The image information processing apparatus according to claim 12, wherein a packetizing drawing command is generated for each polygon by synthesizing the two-dimensional image information with the two-dimensional image information. 14. The second storage means stores semi-transparency designating data designated for each polygon, and the drawing command generating means synthesizes the semi-transparency designating data and the two-dimensional image information. Then, the drawing command packetized for each polygon is generated, and the drawing means, based on the translucency specified by the generated drawing command, compares the pixel data of the previously drawn polygon with the pixel data of the polygon. The image information processing apparatus according to claim 11, wherein the two-dimensional image is drawn in the image memory by mixing with the pixel data of the drawn polygon. 15. The image information processing apparatus according to claim 14, wherein a plurality of types of translucency are determined according to modes. 16. A three-dimensional image data composed of a plurality of polygons is stored, characteristic data designated for each polygon is stored, and the three-dimensional image data is perspective-transformed to obtain a two-dimensional image corresponding to a display screen. Converting to image information, synthesizing the information designating the characteristic of the polygon and the two-dimensional image information to generate a drawing command packetized for each polygon, and the characteristic specified by the generated drawing command. An image information processing method characterized in that a two-dimensional image is drawn on an image memory based on the data, the two-dimensional image data is read from the image memory in synchronization with a television synchronizing signal, and is supplied to a display means. 17. A color information table specified for each polygon is stored as characteristic data specified for each polygon, and the information specifying the color information table and the two-dimensional image information are combined to create a polygon. 17. The image information processing method according to claim 16, wherein a drawing command packetized for each is generated, and a two-dimensional image is drawn in the image memory based on the color information table designated by the generated drawing command. . 18. A texture pattern information to be attached to each polygon is further stored, and the information for designating the color information table, the information for designating the texture pattern information and the two-dimensional image information are combined, and each polygon is combined. 18. The image information processing method according to claim 17, wherein the drawing command packetized in is generated. 19. A semi-transparency designation data designated for each polygon is stored as characteristic data designated for each polygon, and the semi-transparency designation data and the two-dimensional image information are combined to form a polygon. A packetized drawing command is generated for each, and the pixel data of the previously drawn polygon and the polygon data to be drawn next are mixed based on the translucency specified by the generated drawing command. The image information processing method according to claim 16, wherein the two-dimensional image is drawn in an image memory by using the above method. 20. The image information processing method according to claim 19, wherein a plurality of types of translucency are determined according to modes. 21. A recording medium characterized in that three-dimensional image data composed of a plurality of polygons and characteristic data designated for each polygon are packetized and recorded in polygon units. 22. The recording medium according to claim 21, further comprising color information table designation information recorded for each polygon. 23. The recording medium according to claim 21, further comprising semi-transparency designating data designated for each polygon.