JP2004127323A - Image drawing method, image drawing device, record medium, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remarkably reduce the time required for calculation and drawing for obtaining motion of a fluid like a water flow of a river or a smoke flow, and to carry out high-quality drawing. <P>SOLUTION: This image drawing device comprises: a texture drawing means 306 for drawing a necessary texture image 208 in a texture drawing area 34a of an image memory 34 based on the content of a texture information table 304; a rendering means 310 for drawing a polygon 206 in a display drawing area 34b of the image memory 34 based on the texture image 208 drawn in the drawing area 34a and the content of a polygon information table 308, and for sticking the texture image 208 required for each polygon 206; a texture moving means 314 for moving and rewriting the texture image 208 drawn in the drawing area 34a based on the content of a moving information table 312; and a texture mapping means 316 for sticking the texture image 208 after the movement to the polygon 206 drawn in the drawing area 34b. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to an image drawing method and an image drawing apparatus suitable for drawing a fluid movement such as a water flow and a smoke flow, and a recording medium on which a program and data for realizing the image drawing processing are recorded. And the program itself.

Recently, computer graphics (CG) processing such as hidden line processing, hidden surface removal processing, smooth shading, texture mapping, etc. has been progressing rapidly, coupled with the dramatic development of hardware.

As CG processing, in general, a plurality of three-dimensional shapes (objects) are created by CAD three-dimensional modeling, colors and shadows are applied to these objects, and optical such as specular reflection, diffuse reflection, refraction, and transparency are added. A rendering process is performed in which a special characteristic is added, a surface pattern is added, and drawing is performed in accordance with surrounding conditions (such as reflection of a window or a scene, or a reflection of light).

By the way, when drawing the movement of a fluid such as a flow of water or smoke, for example, a method of randomly moving many objects and then drawing by pasting, for example, an image of water or smoke as a texture is considered. It is done.

That is, when processing a normal polygon, a process of performing a perspective transformation calculation of the vertex of the polygon by the geometry calculator and drawing the polygon obtained by the calculation in the display drawing memory is performed by the drawing processor.

For example, when drawing with a texture attached after randomly moving n objects, the above-described operation (ordinary polygon processing for the object) is performed n times, and n times × the number of polygon vertices Perspective transformation calculation and drawing of n times × the number of polygons are required.

Therefore, it is necessary to prepare a large number of objects in order to give a realistic feeling to the flow of water and smoke, and accordingly, it takes time to calculate and draw. For example, the display speed of these objects on the monitor The inconvenience of slowing down occurs.

The present invention has been made in consideration of such problems, and performs calculation and drawing for obtaining fluid movement by performing a process of drawing while moving a texture on at least one object in a pseudo manner. An object of the present invention is to provide an image drawing method, an image drawing apparatus, a recording medium, and a program that can significantly reduce the time required for the image drawing and that can perform high-quality drawing.

The present invention is characterized in that the drawing is performed while moving the texture on at least one object in a pseudo manner.

Specifically, one or several types of semi-transparent textures are arranged on the surface of at least one semi-transparent or transparent object, and each of the one or several types of semi-transparent textures is moved in an arbitrary direction in a pseudo manner. While drawing. In this case, the semi-transparent or transparent object may be arranged in a single or multiple manner.

As a result, texture images that artificially move on the surface of the object overlap on the object, and an infinite number of random patterns are generated (animated), and fluid movements such as water flow and smoke flow are expressed. become.

Further, one or several kinds of semi-transparent textures are respectively arranged on the surfaces of a plurality of semi-transparent or transparent polygons constituting the object, and the one or several kinds of semi-transparent textures are respectively simulated in an arbitrary direction. You may make it draw while moving to. In this case, the semi-transparent or transparent polygon may be arranged in a single or multiple manner.

As a result, texture images moving in a pseudo manner on the surfaces of multiple polygons overlap each other on the polygons, generating innumerable random patterns (animated), and fluid movement such as water flow and smoke flow Will be expressed.

As described above, in the present invention, by performing the process of drawing while moving the texture on at least one object in a pseudo manner, the time required for calculation and drawing for obtaining the fluid motion is greatly reduced. And high-quality drawing can be performed.

As described above, according to the image drawing method, the image drawing apparatus, the recording medium, and the program according to the present invention, it is possible to perform the process of drawing while moving the texture on at least one object in a pseudo manner. The time required for calculation and drawing for obtaining fluid movement can be greatly reduced, and high-quality drawing can be performed.

Embodiments in which the image drawing method and the image drawing apparatus according to the present invention are applied to an entertainment apparatus that performs, for example, three-dimensional CG processing (hereinafter simply referred to as an entertainment apparatus according to the embodiments), and the present invention. Embodiments in which such a recording medium and program are applied to a recording medium and a program in which a program and data executed by an entertainment device are recorded will be described with reference to FIGS.

As shown in FIG. 1, an entertainment apparatus 10 according to the present embodiment includes a main CPU 12 that controls the entertainment apparatus 10, a main memory 14 that is used for operations of various programs, storage of various data, and the like. The image processing unit 18 generates image data based on the control of the CPU 12 and outputs the image data to the display device 16 (CRT in this example), and the input / output port 20 for transmitting / receiving data to / from an external device. It is configured.

The main CPU 12 is connected to the main memory 14, the image processing unit 18, and the input / output port 20 via the bus 22. The input / output port 20 records, for example, an input device 24 for inputting data (key input data, coordinate data, etc.) to the entertainment device 10, and various programs and data (data on objects, texture data, etc.). For example, an optical disk device 26 for reproducing an optical disk such as a CD-ROM is connected.

The image processing unit 18 includes a rendering engine 30, a memory interface 32, an image memory 34, and a display control device 36 (for example, a programmable CRT controller).

The rendering engine 30 executes an operation of drawing predetermined image data in the image memory 34 via the memory interface 32 in response to a drawing command supplied from the main CPU 12.

A first bus 38 is connected between the memory interface 32 and the rendering engine 30, and a second bus 40 is connected between the memory interface 32 and the image memory 34. Each of the first and second buses 38 and 40 has a bit width of, for example, 128 bits, and the rendering engine 30 can execute a drawing process on the image memory 34 at high speed.

The rendering engine 30 converts 320 × 240 pixel image data, such as NTSC or PAL, or 640 × 480 pixel image data in real time, that is, between 1/60 seconds and 1/30 seconds. Has the ability to draw several times to several tens of times.

The image memory 34 employs, for example, a unified memory structure capable of designating the texture drawing area 34a and the display drawing area 34b in the same area.

The display control device 36 writes the texture data acquired through the optical disk device 26 or the texture data created on the main memory 14 to the texture drawing area 34 a of the image memory 34 via the memory interface 32, or displays the image data on the image memory 34. The image data drawn in the drawing area 34b is read via the memory interface 32, and this is output to the display device 16 and displayed on the screen.

Next, characteristic functions of the entertainment apparatus 10 according to this embodiment will be described with reference to FIGS.

This function is to perform drawing while moving the texture on at least one object in a pseudo manner.

Specifically, for example, as shown in FIG. 2, it is assumed that the water of the river 200 hits the support column 202 and flows separately on both sides, for example, in a scene where the support column 202 stands in the river 200.

In this case, for example, as shown in FIG. 3, the object 204 of the river 200 excluding the portion of the column 202 is composed of a large number of semi-transparent or transparent polygons 206 (hereinafter simply referred to as polygons). The texture image 208 (see FIG. 4A) is pasted. As the translucent texture image 208, an image for expressing a portion where light is irregularly reflected by waves, for example, an image in which translucent spots are randomly scattered as shown in FIGS. 4A and 4B is used. Can do.

First, a texture image to be used is written in the texture drawing area 34a of the image memory 34, and then a necessary polygon 206 is drawn in the display drawing area 34b, and a texture image 208 corresponding to each polygon 206 is textured. Map and display.

Next, the texture image 208 in the texture drawing area 34a is rewritten by moving it in a predetermined direction by a predetermined width, and the texture image 208 after rewriting is texture-mapped and displayed on each polygon 206.

For example, referring to the example of FIG. 3, an arbitrary texture image 208 is drawn in the texture drawing area 34a in correspondence with the shape of one object 204 composed of a large number of polygons 206.

Specifically, for example, a texture image 208 including five polygons 206 that are continuous in the horizontal direction indicated by circle 1 in FIG. 3 is written in the circle 1 area of the texture drawing area 34a as shown in FIG. A texture image 208 including five polygons 206 that are continuous in the horizontal direction indicated by circle 2 in FIG. 3 is written in the circle 2 area of the texture drawing area 34a as shown in FIG.

Next, the texture image 208 corresponding to one polygon 206 indicated by circle 3 in FIG. 3 is written in the circle 3 area of the texture drawing area 34a shown in FIG. 5, and similarly in the horizontal direction indicated by circle 4 in FIG. A texture image 208 including three continuous polygons 206 is written in a circle 4 area of the texture drawing area 34a shown in FIG. The remaining circles 5 to 8 are performed in the same manner as described above.

Then, a texture image 208 corresponding to each polygon 206 is pasted, such as pasting the texture image 208 shown in (1) of FIG. 5 on the polygon 206 shown in (1) of FIG. At this stage, the initial state is displayed.

Thereafter, as shown in FIG. 5, each texture image 208 is rewritten by moving by a predetermined width in the direction indicated by the arrow. At this time, for the texture image 208 (for example, the texture indicated by circle 1 or circle 2) to be cyclically expressed, the texture image 208 of the portion protruding by the movement is written in the starting point portion on the movement.

In particular, the texture images 208 shown in (6), (12), (16), and (19) of FIG. 5 are rewritten so as to move in two directions, respectively.

By processing in this way, as shown in FIG. 2, it is possible to project a realistic image in which the water of the river 200 flows in one direction, especially in the vicinity of the support column 202.

The above example has been described with respect to one object 204, but it can also be applied to a case where many objects are arranged in multiple.

For example, as shown in FIG. 6, two river objects (first and second objects) 204 a and 204 b are prepared in a scene where a column 202 stands in the river 200. At this time, when a texture image is pasted on a large number of polygons 206 constituting each of the objects 204a and 204b, the first texture image 208a is pasted on the first object 204a, and the second object 204b is second on the second object 204b. The texture image 208b is pasted.

Then, by arranging the first and second objects 204a and 204b in a multiple manner, the first texture image 208a and the second texture image 208b overlap each other as shown by a dashed-dotted frame A, and various patterns are obtained. Will occur.

Furthermore, since the first and second texture images 208a and 208b are rewritten by moving in any direction over time on the first and second objects 204a and 204b, respectively, Innumerable random patterns are generated (animated) on 204b, and fluid movement such as water flow and smoke flow can be expressed more realistically.

As an example in which a large number of objects are arranged in multiple layers, for example, as shown in FIG. 7A, a scene in which water from a tap faucet 210 is stored in a transparent water tank 212 can be considered. In this case, for example, as shown in FIG. 7B, one object 214 for expressing the water flowing from the faucet 210, and two for expressing that the water falling from the faucet 210 spreads around on the water surface of the water tank 212. It is possible to adopt a configuration in which the objects 216 and 218 and the two objects 220 and 222 for expressing the state in which the water is accumulated in the water tank 212 are arranged in a multiple manner.

Then, in each of the objects 214, 216, 218, 220 and 222, when the texture image 208 is pasted on a number of polygons constituting the object in the same manner as described above, the individual texture images 208 are pasted. By rewriting the image 208 on the corresponding objects 214, 216, 218, 220, and 222 by moving in any direction as time passes, the water flowing from the faucet 210 is stored in the aquarium 212. The video will be projected.

Next, an example of software (drawing means 300) for achieving the above functions will be described with reference to FIGS.

The drawing means 300 is provided to the entertainment apparatus 10 by a random accessible recording medium such as a CD-ROM or a memory card, and further by a network. Here, the description will be made on the assumption that the entertainment apparatus 10 reads and operates from the optical disk 42 such as a CD-ROM.

That is, the drawing means 300 is operated on the main CPU 12 by being downloaded to the main memory 14 of the entertainment apparatus 10 through a predetermined process, for example, from a specific optical disk 42 reproduced in advance by the entertainment apparatus 10. It has become.

The drawing means 300 is necessary based on the contents of the table reading means 302 for reading various tables such as the object information table 322 recorded on the optical disc 42 and the texture information table 304 as shown in FIG. The texture drawing means 306 for drawing the texture image 208 in the texture drawing area 34 a of the image memory 34, the display drawing area 34 b of the image memory 34 based on the texture image 208 drawn in the texture drawing area 34 a and the contents of the polygon information table 308. A rendering unit 310 that draws polygons 206 and pastes a texture image 208 necessary for each polygon 206, and a texture image 208 drawn in the texture drawing area 34a is moved based on the contents of the movement information table 312. The texture moving means 314 for rewriting, the texture mapping means 316 for pasting the moved texture image 208 to the polygon 206 drawn in the display drawing area 34b, the end determining means 318 for determining the end of processing, and the image memory 34 And display processing means 320 for outputting and displaying the image data drawn in the display drawing area 34b on the display device 16.

Here, the breakdown of various tables used in the drawing unit 300 will be described with reference to FIGS.

As shown in FIG. 9, the object information table 322 includes, in each record, the number of polygons 206 constituting the object 204, the corresponding texture information table 304 address, the corresponding polygon information table 308 address, and the corresponding movement information. Each address of the table 312 is registered.

As shown in FIG. 10, the texture information table 304 includes record instruction information of a texture table corresponding to each record (a storage head address of texture image data is registered in each record), and texture image data to be used. The length, the drawing range (coordinates) in the texture drawing area 34a of the image memory 34, and the like are registered.

As shown in FIG. 11, the polygon information table 308 includes, in each record, a drawing range of a portion where the texture image 208 to be used is drawn in the vertex coordinates of the polygon 206 and the texture drawing area 34 a of the image memory 34. Coordinate) etc. are registered respectively.

As shown in FIG. 12, the movement information table 312 includes, in each record, a drawing range (coordinates) of a texture image to be moved, its moving direction (up and down, left and right), cyclic information indicating whether or not to cyclically move, It is registered.

Next, the processing operation of the drawing means 300 will be described with reference to the flowcharts of FIGS.

The drawing means 300 first stores the initial value “0” in the index register i used for searching for the object 204 in step S1 of FIG. 13, and initializes the index register i.

Next, in step S 2, the i record of the object information table 322 is read through the table reading unit 302.

Next, in step S 3, it is determined whether or not the content of the read record is an EOF code indicating the end of the object information table 322 through the end determination means 318.

If it is not the last of the object information table 322, the process proceeds to the next step S4, and the address of the polygon information table 308 corresponding to the address of the corresponding texture information table 304 from the i-th record of the object information table 322 through the table reading means 302. And the corresponding texture information table 304 and polygon information table 308 are read out.

Next, in step S5, processing by the texture drawing unit 306 is entered. First, the texture drawing unit 306 stores an initial value in the index register j used for searching the texture image 208 and initializes the index register j in step S101 of FIG.

Next, in step S102, the j record of the corresponding texture information table 304 is read.

Next, in step S103, it is determined whether or not the content of the read record is an EOF code indicating the end of the texture information table 304.

If it is not the last of the texture information table 304, the process proceeds to the next step S104, and the texture image data is obtained based on the record instruction information of the texture table stored in the read j-th record and the data length of the texture image 208. The data is read out and drawn in a portion corresponding to the drawing range stored in the jth record in the texture drawing area 34a of the image memory 34.

Next, in step S105, after the value of the index register j is updated by +1, the process returns to step S102, and the same processing as described above is performed based on the content of the next record in the texture information table 304.

In step S103, when the EOF code indicating the end of the texture information table 304 is detected, the processing in the texture drawing unit 306 ends.

Returning to the main routine of FIG. 13, in the next step S6, the processing in the rendering means 310 is entered. First, in step S201 of FIG. 16, the rendering unit 310 stores an initial value “0” in the index register k used for searching the polygon 206, and initializes the index register k.

Next, in step S202, the k record of the corresponding polygon information table 308 is read.

Next, in step S203, the kth polygon 206 is drawn in the drawing range derived from the vertex coordinates in the display drawing area 34b.

Next, in step S204, among the texture images 208 drawn in the texture drawing area 34a, the texture image 208 is read from the drawing range of the texture image 208 to be used and texture mapped to the kth polygon 206.

Next, after updating the value of the index register k by +1 in step S205, it is determined in the next step S206 whether or not all the polygons 206 have been processed. This determination is made based on whether or not the value of the index register k is equal to or greater than the number of polygons M.

If the processing has not been completed for all the polygons 206, the process returns to step S202 to draw the next polygon 206 and texture-map the texture image 208 necessary for the polygon 206.

In step S206, when it is determined that the processing for all the polygons 206 has been completed, the processing in the rendering unit 310 ends.

Returning to the main routine of FIG. 13, after the value of the index register i is updated by +1 in the next step S7, the process returns to the step S2 and the same processing as described above is performed for the next object 204.

In step S3, when an EOF code indicating the end of the object information table 322 is detected, the process proceeds to the next step S8, and the image data drawn in the display drawing area 34b is displayed on the display device 16 through the display processing unit 320. Output to and display.

Next, in step S9 of FIG. 14, the initial value “0” is stored in the index register i used for searching the object 204, and the index register i is initialized.

Next, in step S 10, the i record of the object information table 322 is read through the table reading unit 302.

Next, in step S 11, it is determined whether or not the content of the read record is an EOF code indicating the end of the object information table 322 through the end determination means 318.

If it is not the last of the object information table 322, the process proceeds to the next step S12, and the address of the movement information table 312 corresponding to the address of the corresponding polygon information table 308 from the i-th record of the object information table 322 through the table reading means 302. And the corresponding polygon information table 308 and movement information table 312 are read out.

Next, in step S13, the processing by the texture moving means 314 is entered. First, in step S301 of FIG. 17, the texture moving unit 314 stores an initial value “0” in the index register m used for searching for movement information, and initializes the index register m.

Next, in step S302, m records of the corresponding movement information table 312 are read.

Next, in step S303, it is determined whether or not the content of the read record is an EOF code indicating the end of the movement information table 312.

If it is not the end of the movement information table 312, the process proceeds to the next step S304, and the texture to be moved corresponding to the drawing range of the texture image 208 stored in the m record among the texture images 208 drawn in the texture drawing area 34a. The image 208 is rewritten by moving by a predetermined width along the moving direction similarly stored in the m record.

Next, in step S305, it is determined whether or not cyclic drawing is necessary. This determination is performed based on the circulation information stored in the m record.

If cyclic drawing is necessary, the process proceeds to the next step S306, and the texture image 208 of the protruding portion is written in the starting point portion by the movement processing in step S304.

When the process in step S306 is completed, or when it is determined in step S305 that the circular drawing is unnecessary, the process proceeds to the next step S307, and the value of the index register m is updated by +1. Thereafter, the process returns to step S302, and the corresponding texture image 208 is moved and rewritten based on the next movement information.

In step S303, when an EOF code indicating the end of the movement information table 312 is detected, the processing in the texture moving unit 314 ends.

Returning to the main routine of FIG. 14, in the next step S14, the processing by the texture mapping means 316 is entered.

The texture mapping means 316 first stores the initial value “0” in the index register k used for searching for the polygon 206 in step S401 in FIG. 18, and initializes the index register k.

Next, in step S402, the k record of the corresponding polygon information table 308 is read.

Next, in step S403, among the texture images 208 drawn in the texture drawing area 34a, the texture image 208 is read from the drawing range of the texture image 208 to be used and texture mapped to the kth polygon 206.

Next, after the value of the index register k is updated by +1 in step S404, it is determined in step S405 whether or not all the polygons 206 have been processed. This determination is made based on whether or not the value of the index register k is equal to or greater than the number of polygons M.

If the processing has not been completed for all the polygons 206, the process returns to step S402 to texture-map the necessary texture image 208 for the next polygon 206.

In step S405, when it is determined that the processing for all the polygons 206 has been completed, the processing in the texture mapping unit 316 ends.

Returning to the main routine of FIG. 14, in the next step S15, the value of the index register i is updated by +1. Then, the process returns to step S10, and the next object 204 is processed in the same manner as described above (the process of moving the texture image 208 and the polygon Texture mapping process 206).

In step S11, when an EOF code indicating the end of the object information table 322 is detected, the process proceeds to the next step S16, and image data drawn in the display drawing area 34b is displayed on the display device through the display processing unit 320. 16 is output and displayed.

Next, in step S17, it is determined whether or not there is a program end request for the drawing unit 300 through the end determining unit 318. If there is no end request, the process proceeds to step S9, and processing similar to that described above (processing to move the texture image 208 and texture mapping to the polygon 206) is performed from the first object 204.

In step S17, when it is determined that there is a program end request, the processing in the drawing unit 300 ends.

As described above, the drawing means 300 according to the present embodiment performs drawing while moving the texture image 208 on the at least one object 204 in a pseudo manner. Specifically, one or several types of translucent texture images 208 are arranged on the surface of at least one translucent or transparent object 204, and each of the one or several types of translucent texture images 208 is arbitrarily set. The image is drawn while moving in a pseudo direction.

As a result, the texture image 208 moving in a pseudo manner on the surface of the object 204 overlaps on the object and an infinite number of random patterns are generated (animated), and fluid movement such as water flow and smoke flow is expressed. It will be.

That is, in the drawing unit 300 according to the present embodiment, calculation or drawing for obtaining fluid movement is performed by performing a process of drawing while moving the texture image 208 on the at least one object 204 in a pseudo manner. Time can be significantly reduced, and high-quality drawing can be performed.

Note that the image drawing method, the image drawing apparatus, the recording medium, and the program according to the present invention are not limited to the above-described embodiments, and various configurations can be adopted without departing from the gist of the present invention. .

It is a block diagram which shows the structure of the entertainment apparatus which concerns on this Embodiment. It is explanatory drawing which shows a mode that the water of a river hits a support | pillar and divides and flows into both sides, for example. It is explanatory drawing which divides | segments the object shown in FIG. 2 into many polygons. 4A and 4B are explanatory diagrams illustrating examples of texture images. It is explanatory drawing which shows the moving direction of the texture image drawn in the texture drawing area. It is explanatory drawing which shows the example which has arrange | positioned the object in multiple. FIG. 7A is an explanatory diagram illustrating a state in which water from a faucet is accumulated in a transparent water tank, and FIG. 7B is an explanatory diagram illustrating the image illustrated in FIG. 7A separated into a plurality of objects. It is a functional block diagram which shows the structure of the drawing means concerning this Embodiment. It is explanatory drawing which shows the breakdown of an object information table. It is explanatory drawing which shows the breakdown of a texture information table. It is explanatory drawing which shows the breakdown of a polygon information table. It is explanatory drawing which shows the breakdown of a movement information table. It is a flowchart (the 1) which shows the processing operation of the drawing means which concerns on this Embodiment. It is a flowchart (the 2) which shows the processing operation of the drawing means which concerns on this Embodiment. It is a flowchart which shows the processing operation of a texture drawing means. It is a flowchart which shows the processing operation of a rendering means. It is a flowchart which shows the processing operation of a texture moving means. It is a flowchart which shows the processing operation of a texture mapping means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Entertainment apparatus 16 ... Display apparatus 34 ... Image memory 34a ... Texture drawing area 34b ... Display drawing area 42 ... Optical disk 204 ... Object 206 ... Polygon 208 ... Texture image 214, 216, 218, 220, 222 ... Object 300 ... Drawing means 302 ... Table reading means 306 ... Texture drawing means 310 ... Rendering means 314 ... Texture moving means 316 ... Texture mapping means 320 ... Display processing means

Claims (20)

An image drawing method characterized in that drawing is performed while moving a texture on at least one object in a pseudo manner. The image drawing method according to claim 1,
One or several semi-transparent textures are arranged on the surface of at least one semi-transparent or transparent object, and drawing is performed while moving the one or several semi-transparent textures in an arbitrary direction. An image drawing method characterized by the above. The image drawing method according to claim 2,
An image drawing method, wherein the semi-transparent or transparent objects are arranged in a single layer or multiple layers. The image drawing method according to claim 1,
One or several types of semi-transparent textures are arranged on the surfaces of a plurality of semi-transparent or transparent polygons constituting the object, and the one or several types of semi-transparent textures are moved in an arbitrary direction in a pseudo manner. An image drawing method characterized in that drawing is performed. The image drawing method according to claim 4.
An image drawing method, wherein the translucent or transparent polygons are arranged in a single or multiple manner. Draw the required texture image in the texture drawing area of the image memory,
At least draw a polygon in the display drawing area of the image memory based on the texture image, and paste the required texture image to each polygon,
Move and rewrite the texture image drawn in the texture drawing area in any direction,
An image drawing method comprising pasting a texture image after movement to a polygon drawn in the display drawing area. An image drawing apparatus comprising drawing means for performing drawing while moving a texture on at least one object in a pseudo manner. The image drawing apparatus according to claim 7.
The drawing means arranges one or several kinds of semi-transparent textures on the surface of at least one semi-transparent or transparent object, and moves the one or several kinds of semi-transparent textures in an arbitrary direction in a pseudo manner. An image drawing apparatus characterized in that drawing is performed. The image drawing apparatus according to claim 8.
The image drawing apparatus, wherein the drawing means includes object setting means for arranging the semi-transparent or transparent objects in a single or multiple manner. The image drawing apparatus according to claim 7.
The drawing means arranges one or several types of translucent textures on the surfaces of a plurality of translucent or transparent polygons constituting the object, and each of the one or several types of translucent textures in an arbitrary direction. An image drawing apparatus that performs drawing while moving the image in a pseudo manner. The image drawing apparatus according to claim 10.
The image drawing apparatus, wherein the drawing means includes object setting means for arranging the semi-transparent or transparent polygons constituting the object in a single or multiple manner. Texture drawing means for drawing a necessary texture image in a texture drawing area of an image memory;
Rendering means for drawing a polygon in a display drawing area of an image memory based on at least the texture image, and pasting a texture image necessary for each polygon;
Texture moving means for moving and rewriting a texture image drawn in the texture drawing area in an arbitrary direction;
An image drawing apparatus comprising: texture mapping means for attaching the moved texture image to the polygon drawn in the display drawing area. A recording medium on which is recorded a program and data including a drawing step for drawing while moving a texture on at least one object in a pseudo manner. The recording medium according to claim 13, wherein
In the drawing step, one or several kinds of semi-transparent textures are arranged on the surface of at least one semi-transparent or transparent object, and the one or several kinds of semi-transparent textures are moved in an arbitrary direction in a pseudo manner. A recording medium characterized by performing drawing. The recording medium according to claim 14, wherein
The drawing step includes an object setting step of arranging the semi-transparent or transparent objects in a single or multiple manner. The recording medium according to claim 13, wherein
In the drawing step, one or several kinds of semi-transparent textures are arranged on the surfaces of a plurality of semi-transparent or transparent polygons constituting the object, and the one or several kinds of semi-transparent textures are arranged in arbitrary directions. A recording medium characterized by performing drawing while moving in a pseudo manner. The recording medium according to claim 16, wherein
The drawing step includes an object setting step in which the semi-transparent or transparent polygons constituting the object are arranged in a single or multiple manner. A texture drawing step for drawing a necessary texture image in a texture drawing area of an image memory;
A rendering step of drawing a polygon in a display drawing area of an image memory based on at least the texture image, and pasting a texture image necessary for each polygon;
A texture movement step of moving and rewriting the texture image drawn in the texture drawing area in an arbitrary direction;
A recording medium in which a program and data including a texture mapping step of pasting a texture image after movement to a polygon drawn in the display drawing area is recorded. In a program that can be read and executed by a computer,
A program comprising a drawing step of performing drawing while moving a texture on at least one object in a pseudo manner. A texture drawing step for drawing a necessary texture image in a texture drawing area of an image memory;
A rendering step of drawing a polygon in a display drawing area of an image memory based on at least the texture image, and pasting a texture image necessary for each polygon;
A texture movement step of moving and rewriting the texture image drawn in the texture drawing area in an arbitrary direction;
And a texture mapping step of pasting the texture image after movement onto the polygon drawn in the display drawing area.

Images