JP2001155180A - Image processor, recording medium and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and realistically represent a light sphere and a flare appearing around it. SOLUTION: A plurality of disks 230A, 230B, 230C consisting of an almost circular central parts where luminance is bright and an almost ring-shaped part in which luminance is made lower than that of the central part around the central part are given rotation at different angles in a three-dimensional space and at respectively different speeds with each center as the same origin O. By doing this, it is possible to easily and realistically represent an image in which the central part looks like a light sphere and the peripheral part looks like the flare being light brightness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for application to a CG (computer graphics) processing device or the like for rotating or moving an object in three-dimensional coordinates on a monitor screen. And an image processing apparatus, a recording medium, and a program capable of easily and realistically (like the truth) expressing the shine of the light sphere.

[0002]

2. Description of the Related Art In a conventional CG processing apparatus, it is not possible to simply and realistically express the light sphere and the flares of light appearing around the light sphere.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described problems, and is intended to simply and realistically represent a light sphere and the brightness of light appearing around the light sphere. It is an object of the present invention to provide an image processing apparatus, a recording medium, and a program that enable the processing.

[0004]

According to the present invention, there is provided an image processing apparatus comprising: a plurality of disks each having a substantially circular central portion and a substantially ring-shaped portion having a lower brightness than the central portion around the central portion; A plurality of disks creating means for creating the respective centers close to each other at different angles in a three-dimensional space; a rotation applying means for applying rotation to the plurality of disks with the center of each of the disks as an origin; And a drawing means for drawing the plurality of discs on a storage means (the invention according to claim 1).

According to the present invention, the brightness of the peripheral substantially ring-shaped portion is lower than that of the substantially circular central portion, and a plurality of rotating disks are drawn. However, for example, it looks like a light sphere, and light appears at the periphery of the light sphere, and there is a possibility that the brightness of light can be expressed simply and realistically. The rotating speed may be the same for each disk, but more preferably different. Also,
When the centers are created close to each other, the centers may be made to coincide with each other.

In this case, the luminance of the substantially ring-shaped part around the center part is lower than that of the central part, and the rotation is given to the plurality of rotated disks by the fluctuation imparting means, so that, for example, the light Fluctuations can be given to the image of the photosphere that shines (the invention according to claim 2). As the fluctuation, a circular motion, an elliptical motion, or the like can be employed.

Further, according to the present invention, the drawing means translucently adds the drawing screen of the new frame and the drawing screen of the previous frame as a current frame (current frame). By drawing, the boundary of the periphery of each disk can be blurred (the invention according to claim 3).

Further, in the present invention according to any one of claims 1 to 3, the drawing means draws a polygon having a lens flare texture between a viewpoint and the plurality of disks. By doing so, for example,
The brightness of the light of the photosphere can be made more realistic (the invention according to claim 4).

Further, according to the present invention, in the invention according to any one of the first to fourth aspects, a substantially circular central portion formed by a plurality of disk forming means and the central portion around the central portion are formed from the central portion. A plurality of disks composed of substantially ring-shaped portions with reduced brightness can be formed by one piece by texture mapping, and a plurality of triangular polygons constituting the substantially circular central portion and the disks are formed. It can also be created by a plurality of triangular polygons (the invention according to claim 5).

According to the present invention, in the invention according to any one of the first to fifth aspects, each of the disks created by the plurality of disks creating means has a central portion whose brightness gradually increases from the center to the circumference. The brightness is gradually reduced from the inner circumference to the outer circumference of the substantially ring-shaped portion, so that the light sphere itself and the brightness of light from the light sphere appear more realistic. (Invention of claim 6).

In the recording medium of the present invention, a plurality of disks comprising a substantially circular central portion and a substantially ring-shaped portion having a lower brightness than the central portion around the central portion are different in a three-dimensional space. A plurality of disks creating step of making the centers close to each other at an angle, a rotation applying step of rotating the plurality of disks with the respective centers as origins, and drawing the plurality of disks with rotation A program having a drawing step of performing the above is stored (the invention according to claim 7).

According to the present invention, since the brightness of the peripheral substantially ring-shaped portion is lower than that of the substantially circular central portion and a plurality of rotating disks are drawn, the central portion is drawn. However, for example, it is possible to easily and realistically express the radiance of light that looks like a light sphere and also appears in the peripheral portion. The rotation may be provided at the same speed, but more preferably at a different speed for each disk.

Further, the recording medium of the present invention includes a plurality of disks formed of a substantially circular central portion and a substantially ring-shaped portion having a lower luminance than the central portion around the central portion. At different angles, a plurality of disks creating step to create each center close, and a rotation applying step of rotating the plurality of disks with the center of each disk as the origin,
A program is stored which has a fluctuation applying step of applying a fluctuation to the plurality of rotating disks and a drawing step of drawing each of the plurality of disks to which the rotation and the fluctuation are applied (claim 8). .

As described above, by giving a fluctuation to a plurality of rotated disks in which the brightness of the peripheral substantially ring-shaped portion is lower than that of the central portion, for example, a light sphere emitting light shine Can give fluctuation to the image.

According to a seventh aspect of the present invention, in the drawing step, when the drawing is performed, the drawing screen of the new frame and the drawing screen of the previous frame are translucently added and the current frame is drawn. By drawing as the drawing screen of (1), the boundary of the periphery of each disk can be blurred (the invention according to claim 9).

Further, in the present invention according to any one of claims 7 to 9, in the drawing step, when drawing, a texture of a lens flare is placed between a viewpoint and the plurality of disks. Since the pasted polygons are arranged and drawn, for example, the brightness of the light of the light sphere can be made more realistic (the invention according to claim 10).

Furthermore, the present invention provides the present invention,
In the invention according to any one of the first to third aspects, the multi-disc forming step includes a substantially circular central portion and a substantially ring-shaped portion around the central portion, the luminance of which is lower than that of the central portion. The plurality of disks can be formed by one piece by texture mapping, or can be formed by a plurality of triangular polygons forming the substantially circular central portion and a plurality of triangular polygons forming the disk. Item 11)).

Further, the present invention relates to claims 7 to 11
In the invention according to any one of the above, in each of the disks created in the plurality of disks creating step, the brightness of the central portion is gradually decreased from the center toward the circumference, and the substantially ring-shaped portion has an inner circular shape. By gradually decreasing the luminance from the circumference to the outer circumference, it is possible to make the photosphere itself and the brightness of the light from the photosphere appear more realistic (the invention according to claim 12).

The program according to the present invention comprises a plurality of disks each comprising a substantially circular central portion and a substantially ring-shaped portion having a lower luminance than the central portion around the central portion. In, a plurality of disks creating step to create the centers close to each other, a rotation applying step of applying rotation to the plurality of disks with the center of each disk as the origin, and the plurality of disks with rotation given A drawing step of drawing (the invention according to claim 13).

According to the present invention, the brightness of the peripheral substantially ring-shaped portion is lower than that of the substantially circular central portion, and a plurality of rotating disks are drawn. However, for example, it is possible to easily and realistically express the radiance of light that looks like a light sphere and also appears in the peripheral portion. The rotation may be provided at the same speed, but more preferably at a different speed for each disk.

The program according to the present invention comprises a plurality of disks each comprising a substantially circular central portion and a substantially ring-shaped portion having a lower brightness than the central portion around the central portion. A plurality of disks creating step of making the centers close to each other, a rotation applying step of applying rotation to the plurality of disks with the center of each disk as an origin, and applying a fluctuation to the plurality of rotating disks And a drawing step of drawing each of the plurality of disks to which the rotation and the fluctuation have been added.
Described invention).

As described above, by giving a fluctuation to a plurality of rotated disks in which the brightness of the peripheral substantially ring-shaped portion is lower than that of the central portion, for example, a light sphere emitting light glow Can give fluctuation to the image.

Further, the present invention relates to claim 13 or claim 14.
In the invention described, in the drawing step, when drawing, the drawing screen of the new frame and the drawing screen of the previous frame are translucently added and drawn as the drawing screen of the current frame, whereby the periphery of each disk is drawn. The boundary can be blurred (the invention according to claim 15).

Further, in the invention according to any one of claims 13 to 15, in the drawing step, when drawing, a texture of a lens flare is placed between a viewpoint and the plurality of disks. Since the attached polygons are arranged and drawn, for example, the luminosity of the light sphere can be made more realistic (the invention according to claim 16).

Further, the present invention relates to claims 13 to 1
6. In the invention according to any one of the above 6, the substantially circular center portion and the substantially ring-shaped portion around the center portion, the brightness of which is lower than that of the center portion, which are created in the multiple disk creating step. The plurality of disks can be formed as a single sheet by texture mapping, or can be formed from a plurality of triangle polygons forming the substantially circular central portion and a plurality of triangle polygons forming the disk ( The invention according to claim 17).

Further, the present invention relates to claims 13 to 1
7. In the invention according to any one of the seventh to seventh aspects, in each of the disks created in the step of creating a plurality of disks, the brightness of the central portion is gradually reduced from the center toward the circumference, and the substantially ring-shaped portion has By making the luminance gradually decrease from the circumference to the outer circumference, it is possible to make the photosphere itself and the brightness of the light from the photosphere appear more realistic (the invention according to claim 18).

[0027]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an entertainment apparatus 1 for performing three-dimensional CG processing to which an embodiment of the present invention is applied.
0 is shown.

This entertainment apparatus 10 is an MPU (micro-computer) for controlling the entire entertainment apparatus 10.
a processing unit 12, a main memory 14 used for the operation of various programs and storage of various data, and image data based on the control of the MPU 12 and output to a monitor 18 (a CRT monitor in this example). A ROM @ OSDROM (on screen display) which is constituted by, for example, a flash memory and has an OSD function for controlling a kernel or the like, and an image processing unit 20, an input / output port 24 for transmitting / receiving data to / from an external device. read
only memory) $ 26.

The MPU 12 is connected to the main memory 14, the OSDROM 26, the input / output port 24, and the like via the bus 30, and performs coordinate transformation (rotation and movement) including perspective projection transformation, light source calculation, and vector calculation. GTE (geometry tra
nsfer engine) 13 is directly connected.

The GTE 13 also has a function of decomposing a three-dimensional model to be continuously displayed as a moving image on the monitor 18 in accordance with a calculation command from the MPU 12 into polygons as shape surfaces.

The input / output port 24 includes, for example, an input device 32 for inputting data (key input data, coordinate data, etc.) to the entertainment device 10 and various programs and data (data and texture data relating to 3D objects). Etc.) recorded on a CD-R
An optical disk device 36 for reproducing an optical disk 34 such as an OM or a DVD is connected. Note that as the input device 32, an operation device having a direction key or the like, a so-called controller can be used.

The image processing section 20 has a rendering engine 70, a memory interface 72, an image memory 74 as storage means, and a display control device 76 (for example, a programmable CRT controller).

The rendering engine 70 includes the MPU 12
The rendering processing is performed in accordance with the drawing command and polygon coordinate data supplied from the CPU, and an operation of drawing predetermined image data in the image memory 74 via the memory interface 72 is executed.

More specifically, in the rendering engine 70, a polygon (coordinate data of a polygon), which is a shape surface obtained by disassembling the three-dimensional model calculated by the GTE 13 and supplied from the MPU 12, is colored or shaded, A texture mapping process, which is a process for giving characteristics (specular reflection, diffuse reflection, refraction, transparency), giving a surface pattern, and adding crowding of surrounding light, etc., is performed.

A first bus 78 is connected between the memory interface 72 and the rendering engine 70,
A second bus 80 is connected between the memory interface 72 and the image memory 74. Each of the first and second buses 78 and 80 has a bit width of, for example, 128 bits.
4 can be executed at a high speed.

The rendering engine 70 is, for example, NT
The image data of 320 × 240 pixels or the image data of 640 × 480 pixels of the SC system or the PAL system, etc., is transferred in real time, that is, 10 / s to 1/30 seconds, more than 10 to 10 times. As described above, it has the ability to draw on the image memory 74.

As the image memory 74, for example, a memory having a unified memory structure capable of designating a plurality of texture drawing areas and display drawing areas in the same area is employed.

The display controller 76 transmits texture data read from the optical disk 34 to the main memory 14 through the optical disk device 36 and texture data read from the OSDROM 26 to the memory interface 7.
2, the image data drawn in the texture drawing area of the image memory 74 via the memory interface 72, and the image data drawn in the display drawing area of the image memory 74 are output to the monitor 18 and displayed on the screen. It is configured as follows.

FIG. 2 shows a rendering engine 70 for performing a rendering process on a three-dimensional shape (3D model) in response to a drawing command from the MPU 12, and image processing (3D CG processing) between the MPU 12 and the GTE 13 for controlling the rendering engine. 3) shows a functional block diagram relating to a program {simulation function of light sphere and flare of light appearing around the light sphere}.

The image processing program described below is executed by reading out what is stored in the OSDROM 26 together with the 3D model data and the two-dimensional (2D) image data by the MPU 12, and is executed by this. Alternatively, the image processing program, 3D model data, and image data may be recorded on the optical disc 34, read through the optical disc device 36, loaded into the main memory 14, read out by the MPU 12, and executed. it can.

In the simulation function of the light sphere and the flare shown in FIG. 2, various data related to the display of the light sphere and the flare are read out from the OSDROM 26 by the MPU 12, and basically, a plurality of disks having a bright center and a dark periphery are obtained. A plurality of disc creating means 102 for creating the centers close to each other at different angles in the dimensional space (the same origin may be used); and preferably different speeds (or different speeds) for the plurality of discs with the centers as the origins. Rotation imparting means 104 for imparting rotation at the same speed), fluctuation imparting means 106 for imparting fluctuation such as circular motion to each of the plurality of disks to which rotation has been applied, a drawing screen for a new frame and a previous frame. A translucent adding means 108 for translucently adding the drawing screen to obtain a drawing screen of the current frame, and a lens frame between the viewpoint and the plurality of disks after the translucent addition. A flare emphasizing means 110 for arranging polygons on which textures are applied to make the radiance of light even more realistic; and a frame drawing means 112 for drawing a plurality of disks after flare emphasis in the image memory 74 as frame images. .

In the simulation function of the light sphere and the flare shown in FIG. 2, each processing by the fluctuation imparting means 106, the translucent adding means 108, and the flare emphasizing means 110 is omitted as shown by the dotted line 116. The configuration can be changed so that a plurality of disks rotating around the same origin at different speeds represented by the output data of the rotation applying unit 104 are drawn in the image memory 74 by the frame drawing unit 112.

Similarly, on the path 118 indicated by a dotted line, each processing by the translucent adding means 108 and the flare enhancing means 110 is omitted, and is represented by the output data of the fluctuation applying means 106 through the rotation applying means 104. After imparting fluctuations to a plurality of disks rotating about the same origin at different speeds, the plurality of disks are drawn by frame drawing means 11.
2, the configuration can be changed so that the image is drawn on the image memory 74.

Further, the processing by the flare enhancing means 110 is omitted in the dotted path 120, and the rotation imparting means 10 is omitted.
4. Fluctuation imparting means 106 and translucent adding means 108
For example, a plurality of disks rotating about the same origin at different speeds represented by the output data after the processing are given fluctuations, and the plurality of disks after the fluctuations are given to the image memory 74 by the frame drawing means 112. It is also possible to change the configuration so that the image is drawn.

Next, the processing of the simulation function of the photosphere and flare shown in FIG. 2 will be described in detail with reference to the flowchart shown in FIG.

In step S1, when the power of the entertainment apparatus 10 is turned on, the MPU 12, upon detecting the power, reads out the program from the OSDROM 26 and starts executing the display relating to the simulation function of the flare of the light sphere.

In this case, first, a plurality of disks creating means 102
Thereby, a plurality of disks are created in the processing of steps S2 to S6, or a plurality of disks are created in the processing of steps S22 and S23.

More specifically, in the process of steps S2 to S6, in step S2, as shown in the upper part of FIG. 4, a triangle fin, which is a triangular polygon, is used for the main body of the photosphere (bright portion at the center). Multiple polygons 1
98 are prepared and a plurality of substantially circular center portions 200 are created (a plurality of small-diameter disc-shaped polygons 198 are created).

As shown in the lower part of FIG. 4, the luminance distribution of the substantially circular central portion 200 is such that the luminance is high (bright) at the central portion and low (dark) at the periphery as shown in the lower part of FIG. 202 is set.

Further, in step S4, as shown in FIG. 5, a larger triangle fin is used for flare of the photosphere represented by the substantially circular central portion 200, as shown in FIG. Are prepared, and a substantially circular peripheral portion (about several times in diameter ratio) 206 having a larger diameter than the substantially circular central portion 200 is prepared.
It is created in a one-to-one correspondence with each substantially circular central part 200 (a plurality of large-diameter disk-shaped polygons 204 are created).

In step S5, the luminance of the substantially circular peripheral portion 206 is such that the luminance is high (bright) at the center and low (dark) at the periphery as shown in the lower part of FIG. 208 is set. The maximum luminance (luminance at the center) on the luminance distribution 208 of the substantially circular peripheral part 206 is smaller than the minimum luminance (luminance at the peripheral part of the central part 200) of the luminance distribution 202 of the central part 200 shown in FIG. Is also set to a considerably small luminance.

In step S6, a plurality of disks are created. As shown in the upper part of FIG.
The central part 200 and the peripheral part 206 shown in FIG. 5 are arranged on the same plane to form an integrated disk (having no thickness).

An integrated disk (also called a double disk)
As shown in the lower part of FIG.
The luminance distribution 202 of the central part 200 and the luminance distribution 208 of the peripheral part 206 are combined (in this case, added) to form a luminance distribution. This luminance distribution 214 is
May be a luminance distribution obtained by curve interpolation so that the point at which the differential coefficient changes becomes smooth.

As can be understood from FIG. 6, the disk (double disk) 210 has a substantially circular central portion 200 and the central portion 2.
It can be considered to be composed of a substantially ring-shaped portion 212 whose luminance is lower than that of the central portion 200 around 00. In this case, as shown in FIG.
0 is gradually reduced from its center 216 toward the outer periphery, and the substantially ring-shaped portion 212 has a brightness distribution 21 indicated by a solid line whose brightness gradually decreases from its inner edge to its outer edge.
It is set to 4.

In step S6, about several disks 210 are formed, in this embodiment seven disks.

On the other hand, in the processing of steps S22 and S23, a plurality of disks (double disks) are created by another method. That is, as shown in FIG. 7, it has the same luminance distribution 214 as the disk 210, and has a circular (including substantially circular) central portion 220 and a ring-shaped (including substantially ring-shaped) portion 22.
2 is a single disk (double disk) 23 in which a disk 228 as an image image, which is a texture image composed of 2 disks, is texture-mapped to a square transparent object 226.
0 is prepared.

FIG. 8 shows a visual and schematic image 21 of a disk 210 having the luminance distribution 214 shown in FIG.
0I is shown for reference. FIG. 9 shows a visual and schematic image 230I of the disk 230 having the luminance distribution shown in FIG. 7 for reference.

In the following description, step S22,
Description will be made with reference to the disk 230 created in the procedure of S23.

Next, in step S7, the plurality of disks 230 are formed by the plurality of disks 230 as one object and have the same center (the center may not be the same if the centers are close to each other). When the plurality of disks 230 are viewed as planes, they are arranged at different angles so that the angles formed by the planes intersecting each other are as large as possible in a three-dimensional space. For example, if the disk 230 is 3
If the center of the first disk 230 is arranged on the XY plane that matches the origin of the three-dimensional space,
XZ in which the center of the third disk 230 is arranged on the YZ plane where the center is aligned with the origin, and the center of the third disk 230 is aligned with the origin.
Place on a plane. In this case, the viewpoint is arranged, for example, in the direction of the combined vector of the unit vectors of the three-dimensional coordinates XYZ.

Next, in step S8, the rotation applying means 1
By means of 04, the plurality of disks 230 arranged as described above are rotated at different speeds (the same speed may be used) in the three-dimensional space with the center as the origin.

In this case, by giving the rotation at different speeds, the light can be fluctuated such that it becomes brighter or darker depending on the direction of the disk 230 from the viewpoint. It is more effective to give fluctuations to the rotation speed.

FIG. 10 shows three disks 230A, 230
B and 230C are respectively rotated about axes 240A, 240B, and 240C (the axes 240A, 240B, and 240C intersect at the origin O) that are not on the same plane and have the same origin at each center. A schematic image 242I of the time is shown. On the image 242I, in the portion where the disks 230A, 230B, and 230C overlap, the respective luminances are added, so that the portion where the disks 230A, 230B, and 230C overlap more becomes bright, and therefore, the vicinity K1 of the origin O
Then, it becomes the brightest image (video). Also, the part K2
Are brighter than the non-overlapping portion K3.

For example, in the case of the detour processing of the dotted line path 116 (see FIG. 2), the image data of the image image 242I is stored in the image memory 74 through the frame drawing means 112 in step S9.
/ 60 seconds, and in step S10, 1/60
Every second, a new image image 242I is output through the memory interface 72 and the display control device 76 and displayed on the monitor 18.

Image image 2 displayed on monitor 18
At 42I, the central part 260 near the origin O near the origin K1 looks like a light sphere that emits light in a spherical shape, and the surrounding parts K2 and K3 that appear in the ring-shaped part 262 show flare that is the shine of light. Looks like

Further, for example, when it is desired to give the light fluctuations in order to express the case where the viewpoint is underwater, the fluctuation imparting means 106 in step S8a converts the light into the image 248I of FIG. As shown, the rotation origin O of the plurality of disks 230 may be moved, for example, at a constant speed on a circle 246, for example.

In this manner, uneven brightness occurs in the overlapping portion of the disk 230, and the light sphere in the center portion fluctuates, and the flare appears to fluctuate in the peripheral portion. In FIG. 11, the diameter of the circle 246 and the diameter of the central portion are drawn to be substantially the same length, but it is preferable that the diameter of the circle 246 be smaller than the diameter of the central portion constituting the photosphere.

In this case, a plurality of disks 230 are
Instead of moving on the top, it may be changed to move on an arbitrary shape such as an ellipse or a triangle.

Next, in step 8b, for example, the image of the previous frame is left in the image memory 74 by the translucent adding means 108, and when the image of the new frame is created, the image of the new frame is By performing a process of translucently adding the image of the previous frame to the image of the current frame by performing translucent addition, for example, when the pixel value of the previous frame is a and the pixel value of the new frame is b, the pixel value of the current frame If c is obtained by adding 50% + 50%, c = (a +
b) / 2 °, an afterimage can be added to the image.

That is, for example, as schematically shown in FIG. 12, 50% of the luminance of the image image 230Ia of the new frame is used, and the image image 2
25% of the luminance of 30Ib is used, and the image image one frame before (the image image two frames before)
The luminance of 230Ic is used by 12.5%, and the luminance of the image image 230Id three frames before is used by 6.25%, so that the luminance decreases by half every time the frame goes back. 230Ia, 23
The image image 230In of the current frame is obtained by adding 0Ib, 230Ic, 230Id,...

By adding an afterimage as described above, it is possible to prevent the boundary between polygons from being clearly expressed.

Next, in step S8c, as shown in FIG. 13, the plurality of disks are arranged at different angles in the three-dimensional space by the flare enhancing means 110, and are rotated at different speeds by the rotation applying means 104, as shown in FIG. And
The fluctuation is given to the center by the fluctuation applying means 106,
Further, an image image 252I and a viewpoint 250 formed of a central light sphere composed of a plurality of disks 230 subjected to translucency addition by the translucent addition means 108 and a ring-shaped portion representing a flare which is the shine of light of the light sphere. In the meantime, a polygon on which a lens flare texture 254 is pasted is arranged by the flare emphasizing means 110, and is drawn on the image memory 74 by the frame drawing means 112 in step S9, so that the image image 252I of the flared light sphere is obtained. It can be expressed more realistically.

The display of the image image 252I of the flared light sphere is terminated when the optical disk 34 mounted by the operator is detected by the optical disk device 36, as shown in step S11.
The execution of the program recorded in the OSDROM 26 from S10 to S10 ends, and the execution of the program recorded on the optical disk 34 is started.

The present invention is not limited to the above-described embodiment, but may adopt various configurations without departing from the gist of the present invention.

[0075]

As described above, according to the present invention, a plurality of disks whose brightness is relatively low in a substantially ring-shaped portion surrounding the substantially circular center portion are three-dimensionally arranged. Each disk is rotated at a different angle in space and the center of each disk is brought close to each other, and drawn in an image memory.

For this reason, for example, the light sphere can be represented by a substantially circular central portion, and the brilliance of light appearing around the light sphere can be represented by a substantially ring-shaped portion.

In this way, it is possible to simply and realistically express the light sphere and the brightness of light appearing around the light sphere.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an entertainment apparatus to which an embodiment of the present invention has been applied.

FIG. 2 is a functional block diagram showing a configuration of an embodiment of the present invention.

FIG. 3 is a flowchart for explaining the operation of the embodiment of the present invention;

FIG. 4 shows a small-diameter central disk formed by a triangular polygon;
FIG. 4 is an explanatory diagram showing the relationship of the luminance distribution.

FIG. 5 is an explanatory diagram showing a relationship between a large-diameter disk made of a triangular polygon and its luminance distribution.

FIG. 6 is an explanatory diagram showing the relationship between a disk in which a small-diameter disk made of a triangular polygon and a large-diameter disk are arranged on the same plane and the luminance distribution thereof.

FIG. 7 is an explanatory diagram showing a relationship between a double disk using a texture image and its luminance distribution.

FIG. 8 is a schematic diagram showing an image image of a double disk formed by triangular polygons.

FIG. 9 is a schematic diagram showing an image image of a double disk using a texture image.

FIG. 10 is a schematic diagram showing an image image of a double disk rotated around different axes.

FIG. 11 is a schematic diagram showing an image image of a double disk to which fluctuation is added.

FIG. 12 is an explanatory diagram showing a translucent processing when displaying a double disk.

FIG. 13 is a schematic diagram showing a state in which a lens flare texture is inserted between a viewpoint and a plurality of rotating double disks.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Entertainment device 12 ... MPU 13 ... GTE 14 ... Main memory 18 ... Monitor 20 ... Image processing part 26 ... OSDROM 34 ... Optical disk (recording medium) 70 ... Rendering engine 72 ... Memory interface 74 ... Image memory 76 ... Display control device 102 ... A plurality of disks creating means 104... A rotation imparting means 106... A fluctuation imparting means 108. A translucent adding means 110. A flare emphasizing means 112 a frame drawing means 198, 204.
Central part 202, 208, 214 ... luminance distribution 206 ... peripheral part 210, 228, 230, 230A, 230B, 230
C (double disk): disk 210I, 230I, 230Ia-230In, 242
I, 248I, 252I ... Image images 212, 222, 262 ... Ring-shaped part 226 ... Objects 240A, 240
B, 240C: axis 246: circle 254: texture of lens flare

Claims (18)

[Claims] 1. A plurality of disks each comprising a substantially circular central portion and a substantially ring-shaped portion having a lower brightness than the central portion around the central portion at different angles in a three-dimensional space. Means for creating a plurality of disks in close proximity to each other, rotation applying means for rotating the plurality of disks with the center of each of the disks as the origin, and storing each of the plurality of rotated disks on a storage means. An image processing apparatus, comprising: a drawing unit for drawing. 2. A plurality of disks each comprising a substantially circular central portion and a substantially ring-shaped portion having a lower luminance than the central portion around the central portion at different angles in a three-dimensional space. A plurality of disc creating means for creating the plurality of discs in close proximity to each other; a rotation applying means for applying rotation to the plurality of discs with the center of each of the discs as an origin; a fluctuation applying means for imparting fluctuation to the plurality of rotating discs; An image processing apparatus, comprising: a drawing unit that draws, on a storage unit, each of the plurality of disks to which the rotation and the fluctuation have been applied. 3. The image processing apparatus according to claim 1, wherein said drawing means translucently adds a drawing screen of a new frame and a drawing screen of a previous frame when drawing on said storage means. An image processing apparatus for drawing as a drawing screen of a current frame. 4. The image processing apparatus according to claim 1, wherein said drawing means includes a lens flare between a viewpoint and said plurality of disks when drawing on said storage means. An image processing apparatus for arranging and drawing textured polygons. 5. The image processing apparatus according to claim 1, wherein said substantially circular central portion created by said plurality of disk creating means and said central portion around said central portion are formed. A plurality of disks each including a substantially ring-shaped portion having a lower luminance may be formed as a single sheet by texture mapping, or may include the plurality of triangular polygons and a plurality of triangular polygons forming the substantially circular central portion. An image processing device characterized by being created by a plurality of triangular polygons. 6. The image processing apparatus according to claim 1, wherein each of the disks created by the plurality of disks creating means is:
The image processing apparatus according to claim 1, wherein the brightness of the central portion is gradually reduced from the center toward the circumference, and the brightness of the substantially ring-shaped portion is gradually reduced from the inner circumference to the outer circumference. 7. A plurality of disks each comprising a substantially circular central part and a substantially ring-shaped part surrounding the central part and having a lower brightness than the central part are formed at different angles in a three-dimensional space. Creating a plurality of disks by bringing the disks close to each other, applying a rotation to the plurality of disks with the center of each of the disks as the origin, and rendering a step of drawing each of the plurality of rotated disks. And a recording medium storing a program having the following. 8. A plurality of disks each comprising a substantially circular central portion and a substantially ring-shaped portion having a lower luminance than the central portion around the central portion at different angles in a three-dimensional space. Creating a plurality of disks in close proximity to each other, a rotation applying step of applying rotation to the plurality of disks with the center of each disk as the origin, and a fluctuation applying step of applying a fluctuation to the plurality of rotating disks. A recording medium storing a program having a drawing step of drawing each of the plurality of disks to which the rotation and the fluctuation have been applied; 9. The recording medium according to claim 7, wherein in the drawing step, when drawing, the drawing screen of the current frame is translucently added to the drawing screen of the new frame and the drawing screen of the previous frame. A recording medium characterized by being drawn as. 10. The recording medium according to claim 7, wherein in the drawing step, a polygon in which a lens flare texture is pasted between a viewpoint and the plurality of disks at the time of drawing. A recording medium characterized by rendering by disposing. 11. The recording medium according to claim 7, wherein in the step of forming a plurality of disks, the luminance is lower at the substantially circular central portion and around the central portion than at the central portion. A plurality of disks each including a substantially ring-shaped portion formed by texture mapping, or a plurality of triangular polygons forming the substantially circular central portion and a plurality of triangular polygons forming the disk A recording medium characterized by being created by: 12. The recording medium according to claim 7, wherein each of the disks created in the step of creating a plurality of disks includes:
A recording medium, wherein the luminance of the central portion is gradually decreased from the center toward the circumference, and the luminance of the substantially ring-shaped portion is gradually decreased from the inner circumference to the outer circumference. 13. A plurality of disks each comprising a substantially circular central portion and a substantially ring-shaped portion surrounding the central portion and having a lower luminance than the central portion are formed at different angles in a three-dimensional space. Creating a plurality of disks by bringing the disks close to each other, applying a rotation to the plurality of disks with the center of each of the disks as the origin, and rendering a step of drawing each of the plurality of rotated disks. And a program having 14. A plurality of disks each comprising a substantially circular central portion and a substantially ring-shaped portion having a lower luminance than the central portion around the central portion at different angles in a three-dimensional space. Creating a plurality of disks in close proximity to each other, a rotation applying step of applying rotation to the plurality of disks with the center of each disk as the origin, and a fluctuation applying step of applying a fluctuation to the plurality of rotating disks. A drawing step of drawing each of the plurality of disks to which the rotation and the fluctuation are given. 15. The program according to claim 13, wherein, in the drawing step, when drawing, a drawing screen of a new frame and a drawing screen of a previous frame are translucently added to form a drawing screen of a current frame. A program characterized by drawing. 16. The program according to claim 13, wherein, in the drawing step, a polygon in which a lens flare texture is pasted between a viewpoint and the plurality of disks is used when drawing. A program characterized by arranging and drawing. 17. The program according to claim 13, wherein in the step of creating a plurality of disks, the luminance is made lower at the substantially circular central portion and around the central portion than at the central portion. A plurality of disks each including a substantially ring-shaped portion are formed by one piece by texture mapping, or are formed by a plurality of triangular polygons forming a central portion of the substantially circular shape and a plurality of triangular polygons forming the disk. A program characterized by being created. 18. The program according to claim 13, wherein each of the disks created in the step of creating a plurality of disks includes:
A program wherein the luminance of the central portion is gradually reduced from the center toward the circumference, and the brightness of the substantially ring-shaped portion is gradually reduced from the inner circumference to the outer circumference.