WO2022201413A1

WO2022201413A1 - Drawing processing device, drawing processing system, drawing processing method, and drawing processing program

Info

Publication number: WO2022201413A1
Application number: PCT/JP2021/012491
Authority: WO
Inventors: 智史櫻井
Original assignee: 三菱電機株式会社
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2022-09-29
Also published as: JP7471512B2; JPWO2022201413A1

Abstract

Existing drawing processing devices have the problem in which if a small drawing object or the like having a drawing size of less than one pixel is not positioned in the center of a pixel, the two-or-more dimensional drawing object disappears from the display screen without being drawn.　The following are provided inside of a drawing processing device (100): a dotting unit (112) that renders a dot in a pixel in a buffer corresponding to the position of a two-or-more dimensional drawing object, and draws the drawing object on the buffer; and an output control unit (111) that performs control such that a scene drawn on the buffer is outputted to an output device (5).

Description

Drawing processing device, drawing processing system, drawing processing method, and drawing processing program

The present disclosure relates to a drawing processing device that performs processing for drawing drawing information, a drawing processing system using the drawing processing device, a drawing processing method, and a drawing processing program.

A 2D, 3D, etc. model drawing target may be displayed on a display device such as a display. At this time, a two-dimensional drawing target is drawn as it is in a drawing destination buffer, which is a drawing destination buffer, but a three-dimensional drawing target is projected two-dimensionally and then drawn in the drawing destination buffer. Then, when the center of the pixel in the drawing destination buffer is included in the drawing target, the pixel is filled in and the drawing target is drawn. It should be noted that there are various sizes of drawing objects, for example, there are small drawing objects of less than one pixel and drawing objects that span several pixels.

As a technique for drawing such a drawing target, the technique of Patent Document 1 is disclosed. Japanese Patent Application Laid-Open No. 2002-200000 discloses a technique in which a drawing processing device performs high-resolution rendering of only specific drawing targets such as small characters and thin lines, and renders other drawing targets at low resolution.

JP 2009-274366 A

However, in the above-described conventional drawing processing device, high-resolution rendering means performing processing on a pixel-by-pixel basis for all pixel positions, and low-resolution rendering means performing processing on the X coordinate of coordinate values. and that only pixel positions with even-valued Y coordinates are processed on a multi-pixel basis. Therefore, for example, a small drawing target with a drawing size of less than 1 pixel disappears from the display screen without being drawn if the drawing target is not positioned at the center of the pixel.

The present disclosure has been made to solve the above problems, and even when a two- or more-dimensional drawing target is not positioned at the center of a pixel, the drawing target can be drawn and the drawing target can be displayed on the display screen. An object of the present invention is to provide a drawing processing device, a drawing processing system, a drawing processing method, and a drawing processing program that can be displayed on a screen.

The drawing processing device according to the present disclosure includes a dot printing unit that dots pixels in a buffer corresponding to the position of a two- or more-dimensional drawing target, draws the drawing target in the buffer, and a scene drawn in the buffer to an output device. and an output control unit that controls to output.

A drawing processing system according to the present disclosure includes an input device that receives input of a drawing target of two or more dimensions, a drawing processing device that performs drawing processing of drawing the drawing target as a scene in a buffer, and an output device that outputs the scene. , the drawing processing device includes a dot printing unit that places dots on pixels in the buffer corresponding to the position of the object to be rendered, and renders the object to be rendered into the buffer; and a control unit.

The drawing processing method according to the present disclosure includes the steps of drawing pixels in a buffer corresponding to the position of a drawing target in two or more dimensions, drawing the drawing target in the buffer, and outputting the scene drawn in the buffer to an output device. and controlling to

The drawing processing program according to the present disclosure is a process of drawing dots on pixels in a buffer corresponding to the position of a drawing target in two or more dimensions, drawing the drawing target in the buffer, and outputting the scene drawn in the buffer to an output device. and a process for controlling so as to be executed.

According to the present disclosure, the dot dot plotting unit dots pixels in a buffer corresponding to the position of a two-dimensional or more drawing target, draws the drawing target in the buffer, and the output control unit outputs the scene drawn in the buffer to the output device. Therefore, even when a two-dimensional drawing target is not positioned at the center of the pixel, the drawing target is drawn and can be displayed on the display screen.

1 is a block diagram of a drawing processing system including a drawing processing device according to Embodiment 1; FIG. 1 is a hardware configuration diagram of a drawing processing system according to Embodiment 1; FIG. 4 is a flowchart showing the operation of the drawing processing system according to Embodiment 1; It is an example of drawing information according to the first embodiment. 4 is a flowchart showing the operation of the drawing processing device according to Embodiment 1; 3A and 3B are diagrams of a drawing destination buffer and a detail buffer according to the first embodiment; FIG. FIG. 11 is a diagram in which a rendering result of rendering a polygon model for non-application rendering in a rendering destination buffer and the polygon model for non-application rendering are superimposed; FIG. 10 is a diagram showing a rendering result of rendering a non-applicable rendering target polygon model to a rendering destination buffer; FIG. 10 is a conceptual diagram showing roughly estimating the area of a drawing target by projecting a three-dimensional drawing target into two dimensions using a bounding box; FIG. 10 is a diagram in which a drawing result of drawing a polygon model to be applied drawing in a detail buffer and a plurality of polygon models are superimposed; FIG. 10 is a diagram showing a drawing result of drawing a polygon model to be applied drawing in a detail buffer; FIG. 10 is a diagram in which a drawing result of drawing a polygon model to be applied drawing in a detail buffer, a drawing result of drawing another polygon model to be applied drawing in a detail buffer, and a plurality of polygon models are superimposed. FIG. 10 is a diagram showing a drawing result of drawing a polygon model to be applied drawing in the detail buffer and a drawing result of drawing another polygon model to be applied drawing in the detail buffer; The result of drawing a polygon model to be applied to the detail buffer, the result of drawing another polygon model to be applied to the detail buffer, and the result of drawing another polygon model to be applied to the detail buffer. FIG. 4 is a diagram in which a plurality of polygon models are superimposed; The result of drawing a polygon model to be applied to the detail buffer, the result of drawing another polygon model to be applied to the detail buffer, and the result of drawing another polygon model to be applied to the detail buffer. It is a figure showing. FIG. 10 is a diagram showing a rendering result of rendering all polygon models in a rendering destination buffer; 8 is a block diagram of a drawing processing system including a drawing processing device according to Embodiment 2; FIG. 9 is a flowchart showing operations of a drawing processing system according to Embodiment 2 of the present disclosure; 9 is a flowchart showing operations of a drawing processing device according to Embodiment 2 of the present disclosure; 10 is a block diagram of a drawing processing system including a drawing processing device according to Embodiment 3; FIG. FIG. 11 is a flow chart showing the operation of a drawing processing device according to Embodiment 3 of the present disclosure; FIG. FIG. 12 is a diagram showing a contrasting relationship between a detailed buffer corresponding to a polygon model to be rendered according to the third embodiment and a detailed buffer according to the first embodiment; A detail buffer corresponding to the polygon model to be applied drawing in the third embodiment, another detail buffer corresponding to the polygon model to be applied drawing, and yet another detail buffer corresponding to the polygon model to be applied drawing and is a diagram showing. FIG. 10 is a diagram schematically showing position information, which is information indicating which position in the drawing destination buffer the detail buffer corresponds to; FIG. 12 is a diagram schematically showing position information, which is information indicating to which position in the drawing destination buffer another detail buffer corresponds; FIG. 11 is a diagram schematically showing position information, which is information indicating to which position in the drawing destination buffer a further detail buffer corresponds; Information about where the detail buffer corresponds in the destination buffer, information about where another detail buffer corresponds in the destination buffer, and information about where the other detail buffer corresponds in the destination buffer. FIG. 10 is a diagram schematically showing location information that summarizes information as to whether or not it corresponds to a location; FIG. 10 is a diagram in which a drawing result of drawing a polygon model to be applied drawing in a detailed buffer, a drawing result of drawing another polygon model to be applied drawing to another detailed buffer, and a plurality of polygon models to be applied drawing are superimposed. FIG. 12 is a diagram showing a drawing result of drawing a polygon model to be applied drawing in a detail buffer and a drawing result of drawing another polygon model to be applied drawing in another detail buffer; The result of drawing a polygon model to be applied to the detail buffer, the result of drawing another polygon model to be applied to the detail buffer, and the result of drawing another polygon model to be applied to the detail buffer. FIG. 4 is a diagram in which a plurality of polygon models are superimposed; The result of drawing a polygon model to be applied to the detail buffer, the result of drawing another polygon model to be applied to the detail buffer, and the result of drawing another polygon model to be applied to the detail buffer. It is a figure showing.

Embodiment 1.
In Embodiment 1, as an example, a case where the present disclosure is applied to a case where there is a drawing target that is not positioned at the center of a pixel in drawing information that is information for drawing an entire scene will be described below. do.

In the drawing processing system to which the present disclosure is applied, first, a drawing target is divided into a drawing target to which detailed drawing processing is applied and then drawn to a drawing destination buffer, and a drawing target to which detailed drawing processing is not applied and which is drawn to a drawing destination buffer. It is divided into non-applicable drawing targets that are drawn as they are. The drawing processing system draws the non-applicable drawing target as it is in the drawing destination buffer, calculates the area of the applicable drawing target, and determines the alpha value representing the transparency of the applicable drawing target from the calculated area. The drawing processing system draws the applied drawing target in a detail buffer, which is a buffer different from the drawing destination buffer, and acquires the number of drawn pixels. Based on the number of drawn pixels acquired for each applied drawing target, the drawing processing system identifies the applied drawing target that has disappeared because it was not drawn in the detail buffer, and determines the position of the lost applied drawing target. Dots the pixel in the detail buffer corresponding to , and draws the erasure-applied drawtarget into the detail buffer. The rendering processing system alpha-blends the RGB values of the erasure-applied drawing target with the alpha values of the erasure-applied drawing target at the pixels corresponding to the erasure-applied drawing target drawn in the detail buffer, thereby converting the erasure-applied drawing target into the drawing destination. Draw to a buffer. By doing so, even if the drawing target is not positioned at the center of the pixel, the drawing target can be drawn and displayed on the display screen. Details will be described below.

FIG. 1 is a block diagram of a drawing processing system 1 including a drawing processing device 100 according to the first embodiment. The drawing processing system 1 uses an input device 4 for inputting tag information indicating whether or not to apply detailed drawing processing to each drawing object included in the drawing information and drawing information, and using the drawing information and the tag information, A drawing processing device 100 for drawing drawing information and an output device 5 for outputting a scene processed by the drawing processing device 100 are provided.

The input device 4 receives, for example, the drawing information of the entire scene including the drawing target information such as the polygon model input by the user. The user tags each drawing object as to whether it is an applicable drawing object or an inapplicable drawing object by looking at the drawing size, brightness, importance, and the like. The input device 4 receives an input from the user for tagging each drawing target as tag information.

The drawing processing device 100 performs drawing processing for drawing drawing information as a scene in a drawing destination buffer. Specifically, the rendering processing device 100 renders the non-applicable rendering target tagged as not applying the detailed rendering processing to the rendering destination buffer. The drawing processing device 100 calculates the area of the applicable drawing target tagged as applying the detailed drawing processing, and determines the alpha value representing the transparency of the applicable drawing target from the calculated area. The drawing processing device 100 draws the applied drawing target in a detail buffer, which is a buffer different from the drawing destination buffer, and acquires the number of drawn pixels. The drawing processing device 100 identifies, from the number of drawn pixels obtained for each applied drawing target, the loss applied drawing target that is the applied drawing target that has disappeared without being drawn in the detail buffer. Dots the pixel in the detail buffer that corresponds to the position and draws the erasure-applied drawable into the detail buffer. The drawing processing device 100 draws the erasure-applied drawing target by alpha-blending the RGB values of the erasure-applied drawing target with the alpha value of the erasure-applied drawing target in the pixels corresponding to the erasure-applied drawing target drawn in the detail buffer. Draw to the destination buffer. In this way, by marking the pixel in the detail buffer corresponding to the position of the erasure-applied drawing target and drawing the erasure-applied drawing target in the detail buffer, even if the drawing target is not positioned at the center of the pixel, A drawable object is drawn, and the drawable object can be displayed on the display screen.

The output device 5 outputs the scene drawn in the drawing destination buffer by the drawing processing device 100 . The output device 5 is, for example, a display device such as a display, and displays the scene drawn in the drawing destination buffer by the drawing processing device 100 .

Next, the rendering processing device 100 will be described below using FIG. 1 as well.

The drawing processing device 100 includes an acquisition unit 101 that acquires drawing information including a drawing target and tag information from the input device 4, a creation unit 102 that creates a drawing destination buffer and a detail buffer, and a drawing target using the tag information. Depending on whether or not to perform detailed drawing processing, the drawing target is either an inapplicable drawing target that is drawn in the drawing destination buffer or an applicable drawing target that is drawn in the detail buffer, which is a buffer different from the drawing destination buffer. an application determination unit 106 that determines whether or not the detailed drawing process is applied; an unapplied drawing target drawing unit 107 that draws an unapplied drawing target tagged as not applying detailed drawing processing to a drawing destination buffer; A calculation unit 104 for calculating the area of the applied drawing target, a determination unit 105 for determining the alpha value of the applied drawing target from the calculated area, and a drawing target for drawing in the detail buffer to obtain the number of drawn pixels. From the applied drawing target drawing unit 108 and the number of drawn pixels acquired for each applicable drawing target, the loss applied drawing target that is the applied drawing target that has disappeared without being drawn in the detail buffer is identified, and loss applied drawing is performed. A dot printing unit 112 that dots a pixel in the detail buffer corresponding to the position of the object and draws an erasure-applied drawing object in the detail buffer; A blend processing unit 110 for drawing the applied drawing target including the erasure applied drawing object in the drawing destination buffer by alpha blending the RGB values of the applied drawing object including the erasure applied drawing object with the alpha value of the drawing object; an output control unit 111 for controlling output of a scene drawn in a drawing destination buffer, a drawing destination buffer storage unit 103 for storing the drawing destination buffer, and a detailed buffer storage unit 109 for storing the detail buffer. . The drawing destination buffer corresponds to the first buffer, and the detail buffer corresponds to the second buffer. The non-applicable drawing target corresponds to the first drawing target, and the applicable drawing target corresponds to the second drawing target. The unapplied drawing target drawing portion 107 corresponds to the first drawing target drawing portion, and the applicable drawing target drawing portion 108 corresponds to the second drawing target drawing portion.

Next, the hardware configuration of the drawing processing system 1 according to Embodiment 1 will be described.

FIG. 2 is a hardware configuration diagram of the drawing processing system 1 according to the first embodiment. The configuration of the drawing processing system 1 including the drawing processing device 100 according to the first embodiment will be described with reference to FIG.

As an example, the drawing processing system 1 includes a bus 41 , a CPU (Central Processing Unit) 42 , a main memory 43 , a GPU (Graphics Processing Unit) 44 , a graphic memory 45 , an input interface 46 and an output interface 47 .

A bus 41 is a signal path that electrically connects devices and exchanges data. The devices and devices of the drawing processing system 1 are connected via communication. The communication used may be wired communication or wireless communication.

The CPU 42 reads and executes programs stored in the main memory 43 . Specifically, the CPU 42 loads at least part of the OS (Operating System) stored in the main memory 42 and executes the program while executing the OS. The CPU 42 is connected to another device via the bus 41 and controls the device. The CPU 42 may be an IC (Integrated Circuit) that performs processing, and may be a microprocessor, microcomputer, or DSP (Digital Signal Processor).

The main memory 43 stores programs and OSs describing software, firmware, or a combination of software and firmware. The main memory 43 also stores various information and the like. The main memory 43 is, for example, a volatile semiconductor memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only). Non-volatile semiconductor memories such as HDDs (Hard Disk Drives), portable recording media such as magnetic disks, flexible disks, optical disks, compact disks, mini disks, and DVDs (Digital Versatile Discs).

The GPU 44 reads the program stored in the graphic memory 45 and executes drawing processing. Specifically, the GPU 44 loads at least part of the OS stored in the graphic memory 45, and executes the drawing processing program while executing the OS. An acquisition unit 101, a creation unit 102, an application determination unit 106, an unapplied drawing target drawing unit 107, a calculation unit 104, a determination unit 105, an applicable drawing target drawing unit 108, and a dot printing unit of the drawing processing device 100. 112, the blend processing unit 110, and the output control unit 111 are implemented by the GPU 44 reading a program loaded into the graphic memory 45 and executing it.

The graphic memory 45 stores programs and OSs describing software, firmware, or a combination of software and firmware. Also, the graphic memory 45 stores various information and the like. The graphic memory 45 includes, for example, volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, EEPROM, nonvolatile semiconductor memory such as HDD, magnetic disk, flexible disk, optical disk, compact disk, mini disk, and DVD. A portable recording medium or the like. An acquisition unit 101, a creation unit 102, an application determination unit 106, an unapplied drawing target drawing unit 107, a calculation unit 104, a determination unit 105, an applicable drawing target drawing unit 108, and a dot printing unit of the drawing processing device 100. 112 , the blend processing unit 110 and the output control unit 111 are implemented by programs stored in the graphic memory 45 . Also, the drawing destination buffer storage unit 103 that stores the drawing destination buffer and the detail buffer storage unit 109 that stores the detail buffer are implemented by the graphic memory 45 .

The graphic memory 45 includes an acquisition unit 101, a creation unit 102, an application determination unit 106, an unapplied drawing target drawing unit 107, a calculation unit 104, a determination unit 105, and an applicable drawing target. The functions of the drawing unit 108, the dot printing unit 112, the blend processing unit 110, and the output control unit 111 may be realized by separate memories. Alternatively, the drawing destination buffer storage unit 103 and the detail buffer storage unit 109 may be realized by separate memories.

In the first embodiment, the processing including the drawing processing performed by the drawing processing device 100 is performed by the GPU 44 and the graphic memory 45, and the processing other than the processing including the drawing processing performed by the drawing processing device 100 is performed by the CPU 42 and the main memory 43. . The drawing processing system 1 may be provided with either the CPU 42 or the GPU 44, and the provided one may realize all the processing. Alternatively, the drawing processing system 1 may be provided with only one of the main memory 43 and the graphic memory 45, and the provided memory may realize the same function as the other memory. Information of each part may be stored in either the main memory 43 or the graphic memory 45 . Information of each part may be stored by combining the main memory 43 and the graphic memory 45 .

The input interface 46 is a device that allows input of drawing information and tag information. The input interface 46 is, for example, input using a keyboard, mouse, voice input, etc., and reception of information via communication. The input device 4 is implemented by an input interface 46 .

The output interface 47 is a device that outputs rendered scenes. The output interface 47 is, for example, a display device such as a display or a projector. The output device 5 is implemented by an output interface 47 .

Each function of the drawing processing system 1 can be realized by hardware, software, firmware, or a combination thereof. Each function of the drawing processing system 1 may be partly realized by dedicated hardware and partly realized by software or firmware. For example, a part of the drawing processing system 1 realizes its function by a processing circuit as dedicated hardware, and the remaining part realizes its function by reading and executing a program stored in the memory by the CPU. good too. Software, firmware, or a combination of software and firmware may be described as a program.

Next, the operation of the drawing processing system 1 will be explained.

FIG. 3 is a flow chart showing the operation of the drawing processing system 1 according to the first embodiment. The operation of the drawing processing system 1 will be described below with reference to FIG.

In step S1, the input device 4 accepts input of drawing information including a drawing target. For example, a user uses a mouse, a keyboard, or the like to specify drawing information and input it to the input device 4, and the input device 4 receives the input.

The drawing information received by the input device 4 may be drawing information received via communication, drawing information automatically extracted that satisfies a predetermined criterion, or drawing information extracted by machine learning, even if the drawing information is not specified by the user. Any information such as drawing information can be used. In the first embodiment, for example, it is assumed that the drawing target is a three-dimensional polygon model and the drawing information includes information on the drawing target, which is the polygon model. The information of the object to be drawn, which is a polygon model, includes RGB values, position information, and the like.

FIG. 4 is an example of drawing information according to the first embodiment. The drawing information includes a polygon model 51, a polygon model 52, a polygon model 53, and a polygon model 54 to be drawn. In FIG. 4, the polygon models 51 to 54 are displayed as if drawn on a buffer of the same size as the drawing destination buffer so that the drawing flow can be easily understood.

Returning to FIG. 3, the input device 4 receives input of tag information, which is information indicating whether a drawing target included in the received drawing information is an applicable drawing target or an unapplied drawing target, together with the drawing information. . Note that the tag information corresponds to each drawing target.

For example, based on the size of the drawing size for each drawing target, the user can determine whether the polygon model to be drawn is large enough to avoid detailed drawing processing, or whether the polygon model to be drawn is large enough to be drawn in detail. Determine whether the size is small enough to process. The user uses the mouse, keyboard, voice input, etc., to tag each drawing target as non-applicable drawing targets that are determined to be large size, and applicable drawing targets that are determined to be small size. The tag information is input to the input device 4 . The input device 4 receives the input.

In the first embodiment, the user judges that the polygon models 51 to 53 are small enough to perform detailed drawing processing with respect to the drawing information of FIG. 4, and the polygon model 54 is not subjected to detailed drawing processing. Assume that the user determines that the size is large enough to be acceptable. The input device 4 receives, input by the user, tag information tagged with the polygon model 51 as the applicable drawing target, tag information tagged with the polygon model 52 as the applicable drawing target, and the polygon model 53 . Suppose that tag information tagged as being the applicable drawing target and tag information tagged as the polygon model 54 being the unapplied drawing target are received.

It should be noted that the criterion for determining whether a drawing target is an applicable drawing target or an inapplicable drawing target is not limited to the size of the drawing target. For example, the user may determine whether it is an applicable drawing target or an unapplied drawing target based on luminance, importance, or the like. Also, the user may determine whether an object is an applicable drawing target or an unapplied drawing target based on a combination of drawing size, brightness, importance, and the like. Specifically, the user may set a drawing target with a high degree of importance as an applicable drawing target and a drawing target with a low degree of importance as an unapplied drawing target. In addition, when the size of a drawing target is equal to or smaller than a predetermined size and the brightness of the drawing target is equal to or higher than a predetermined brightness, the user regards the drawing target as an applicable drawing target, and the other drawing targets as non-applicable drawing targets. good too. Whether the drawing target is the applicable drawing target or the non-applying drawing target may be determined according to the user's preference.

Returning to FIG. 3, the input device 4 transmits the drawing information and the tag information to the drawing processing device 100, and proceeds to step S2.

In step S2, the drawing processing device 100 receives drawing information and tag information from the input device 4. The drawing processing device 100 performs drawing processing using the received drawing information and tag information. Details will be described later. The drawing processing device 100 controls the output device 5 to output the scene drawn in the drawing destination buffer, and proceeds to step S3.

In step S3, the output device 5 outputs the scene drawn in the drawing destination buffer to a display device such as a display under the control of the drawing processing device 100. FIG.

Even after executing step S3, the process returns to step S1, and the above process is repeated until there is a trigger to end the process, such as turning off the power or performing an end operation. Although the above processing is repeated, it may be performed only once.

Next, the operation of the rendering processing device 100 will be described.

FIG. 5 is a flow chart showing the operation of the rendering processing device 100 according to the first embodiment. The operation of the rendering processing apparatus 100 will be described below with reference to FIG.

In step S11 , the acquisition unit 101 acquires drawing information and tag information from the input device 4 . The acquisition unit 101 transmits the drawing information and the tag information to the creation unit 102, and proceeds to step S12.

In step S12 , the creation unit 102 receives the drawing information and the tag information from the acquisition unit 101 and creates a drawing destination buffer in the drawing destination buffer storage unit 103 . Also, the creating unit 102 creates a detailed buffer in the detailed buffer storage unit 109 . All applicable drawing objects are drawn in the detail buffer. Note that the detail buffer has the same resolution as the drawing destination buffer.

FIG. 6 is a diagram of the drawing destination buffer 55 and the detail buffer 56 of the first embodiment. In the first embodiment, the drawing destination buffer 55 is 8 pixels long by 8 pixels wide, for a total of 64 pixels. The detail buffer 56 is also 8 pixels high by 8 pixels wide, for a total of 64 pixels. That is, the detail buffer 56 has the same resolution as the drawing destination buffer 55 .

Returning to FIG. 5, the creation unit 102 transmits the drawing information and the tag information to the application determination unit 106, and proceeds to step S13.

In step S13, the application determination unit 106 receives the drawing information and the tag information from the creation unit 102, and uses the tag information to determine whether the drawing target is an applicable drawing target or an unapplied drawing target. . The application determination unit 106 transmits the drawing information and all of the tag information of the drawing target that is the non-applicable drawing target to the non-applicable drawing target drawing unit 107 . The non-applicable drawing target drawing unit 107 receives the drawing information and the tag information of the non-applicable drawing target from the application determination unit 106, and stores the non-applicable drawing target in the drawing destination buffer of the drawing destination buffer storage unit 103. draw.

In the first embodiment, the application determination unit 106 determines the drawing information of FIG. 107. The non-applicable drawing target drawing unit 107 receives the drawing information from the application determination unit 106 and the tag information of the polygon model 54 tagged as the non-applicable drawing target, and stores the drawing destination buffer in the drawing destination buffer storage unit 103 . A polygon model 54 is drawn on 55 .

FIG. 7 is a diagram in which the drawing result 57 obtained by drawing the non-applicable drawing target polygon model 54 in the drawing destination buffer 55 and the non-applicable drawing target polygon model 54 are superimposed. As shown in the drawing result 57 in FIG. 7, the non-applicable drawing target drawing unit 107 fills the pixels in the drawing destination buffer 55 with the RGB values associated with the drawing target included in the drawing information so as to resemble the shape of the polygon model 54. .

FIG. 8 is a diagram showing a drawing result 57 obtained by drawing the non-applied drawing target polygon model 54 in the drawing destination buffer 55 . FIG. 8 eliminates the superimposed display of the polygon model 54 of FIG. 7 and shows only the actual rendering result 57 .

Returning to FIG. 5, when the non-applicable drawing target rendering unit 107 finishes drawing the non-applicable drawing target in the rendering destination buffer, the non-applicable drawing target rendering unit 107 notifies the end of drawing to the rendering destination buffer. It is transmitted to the unit 106 and the blend processing unit 110, and the process proceeds to step S14.

In step S14, when the application determination unit 106 receives the notification from the non-applicable drawing target drawing unit 107 that the drawing to the drawing destination buffer is completed, the application determination unit 106 calculates the drawing information and the tag information of the drawing target that is the applicable drawing target. 104.

In the first embodiment, the application determining unit 106 adds the drawing information, the tag information of the polygon model 51 tagged as the applicable drawing target, and the tag as the applicable drawing target to the drawing information of FIG. The tag information of the polygon model 52 that has been tagged and the tag information of the polygon model 53 that has been tagged as an applicable drawing target are transmitted to the calculation unit 104 .

The calculation unit 104 receives the drawing information and the tag information of the drawing target, which is the application drawing target, from the application determination unit 106, and calculates the area of the application drawing target. As for the area calculation method, the area of each applicable drawing object may be calculated accurately, or the area of each applicable drawing object may be roughly calculated by approximation using a bounding box or the like. In the case of a three-dimensional applied drawing target, the area of the applied drawing target is calculated after the applied drawing target is projected and transformed into two dimensions.

FIG. 9 is a conceptual diagram showing how a bounding box 80 is used to project and transform a three-dimensional drawing target 81 into a two-dimensional drawing target 81 to roughly estimate the area of the drawing target 81 . For example, as a method of roughly estimating the area of a drawing target 81, a three-dimensional drawing target 81 in the shape of a house is surrounded by a bounding box 80, and the area 82 of the bounding box 80 corresponding to the surface to be projected and transformed into two dimensions is divided by three. It is assumed to be an approximate value of the area of the drawing object 81 when the dimensional drawing object 81 is projected and transformed into two dimensions.

In FIG. 9, one surface of the bounding box 80 exactly overlaps the surface to be projected and transformed into two dimensions. , the approximate value of the area of the drawing object 81 when the three-dimensional drawing object 81 is projected and transformed into two dimensions can be obtained. In addition, parallel projection has been described with reference to FIG. 9, but perspective projection or the like is also applicable.

In this way, the bounding box 80 is used to project the three-dimensional drawing object 81 into two dimensions, and the area of the drawing object 81 is roughly calculated. , the drawing processing load can be reduced compared to obtaining the area of . Note that the more complicated the shape of the drawing target 81, the higher the drawing processing load. Roughly estimating the area increases the effect of reducing the drawing processing load.

Returning to FIG. 5, in the first embodiment, the calculation unit 104 receives the drawing information from the application determination unit 106, the tag information of the polygon model 51 tagged as the applicable drawing target, and the The tag information of the tagged polygon model 52 and the tag information of the polygon model 53 tagged as the applicable drawing target are received.

The calculation unit 104 calculates the areas of the polygon models 51-53. For example, assume that the calculation unit 104 calculates the area of the polygon model 51 to be 0.4 pixels, the area of the polygon model 52 to be 0.7 pixels, and the area of the polygon model 53 to be 1.2 pixels. Hereinafter, information indicating the area of the applicable drawing target calculated by the calculation unit 104 will be referred to as area information.

The calculating unit 104 transmits the drawing information, the tag information of the drawing target that is the applicable drawing target, and the area information of the applicable drawing target to the determining unit 105, and proceeds to step S15.

In step S15, the determination unit 105 receives from the calculation unit 104 the drawing information, the tag information of the drawing target that is the applied drawing target, and the area information of the applied drawing target. The determining unit 105 determines an alpha value representing the transparency of the applied rendering target using the area information. Specifically, from the area information, if the area of the applicable drawing target is 1.0 pixels or less, the determination unit 105 determines the area as the alpha value of the applicable drawing target. On the other hand, if the area of the applicable drawing target is larger than 1.0 pixels based on the area information, the determination unit 105 decides 1.0 as the alpha value of the applicable drawing target.

In the first embodiment, the determination unit 105 receives the drawing information from the calculation unit 104, the tag information of the polygon model 51 tagged as the applicable drawing target, and the polygon model 52 tagged as the applicable drawing target. , the tag information of the polygon model 53 tagged as being the applicable drawing target, the area information that the area of the polygon model 51 is 0.4 pixels, and the area of the polygon model 52 that is 0.7 pixels. and area information that the area of the polygon model 53 is 1.2 pixels.

The determination unit 105 determines the alpha value of the polygon model 51 using the area information of the polygon model 51 . Specifically, the determination unit 105 determines from the area information that the area of the polygon model 51 is 0.4 pixels, which is 1.0 pixels or less, and thus determines the alpha value of the polygon model 51 to be 0.4. do.

The determination unit 105 determines the alpha value of the polygon model 52 using the area information of the polygon model 52 . Specifically, the determination unit 105 determines from the area information that the area of the polygon model 52 is 0.7 pixels, which is 1.0 pixels or less, and thus determines the alpha value of the polygon model 52 to be 0.7. do.

The determination unit 105 determines the alpha value of the polygon model 53 using the area information of the polygon model 53 . Specifically, the determination unit 105 determines from the area information that the area of the polygon model 53 is 1.2 pixels, which is larger than 1.0 pixels, and thus determines the alpha value of the polygon model 53 to be 1.0. do. Hereinafter, the information indicating the alpha value of the drawing target to be applied determined by the determining unit 105 will be referred to as alpha value information.

The determining unit 105 transmits the drawing information, the tag information of the drawing target that is the applicable drawing target, and the alpha value information of the applicable drawing target to the applicable drawing target drawing unit 108, and proceeds to step S16.

In step S16 , the applicable drawing target drawing unit 108 receives the drawing information, the tag information of the drawing target that is the applicable drawing target, and the alpha value information of the applicable drawing target from the determining unit 105 . Draws the applicable draw target in the detail buffer. At this time, alpha value information is also stored in the detail buffer. Also, the applied drawing target drawing unit 108 acquires the number of pixels drawn in the detailed buffer each time the applied drawing target is drawn in the detailed buffer.

In the first embodiment, the applicable drawing target drawing unit 108 receives the drawing information from the determining unit 105, the tag information of the polygon model 51 tagged as the applicable drawing target, and the tag information of the polygon model 51 tagged as the applicable drawing target. The tag information of the polygon model 52, the tag information of the polygon model 53 tagged as being the applicable drawing target, the alpha value information that the alpha value of the polygon model 51 is 0.4, and the alpha value of the polygon model 52. is 0.7 and alpha value information that the alpha value of the polygon model 53 is 1.0.

The applicable drawing target drawing unit 108 draws the polygon model 51 in the detail buffer 56 of the detail buffer storage unit 109 .

FIG. 10 is a diagram in which a drawing result 58 obtained by drawing the polygon model 51 to be applied drawing in the detail buffer 56 and a plurality of polygon models 51 to 53 are superimposed. Since the polygon model 51 includes the center of one pixel in the detail buffer 56, the polygon model 51 is drawn by filling the pixel with the RGB values associated with the polygon model 51 included in the drawing information. The drawing result of the polygon model 51 is the drawing result 58 of one pixel in FIG.

FIG. 11 is a diagram showing a rendering result 58 of rendering the polygon model 51 to be applied rendering in the detail buffer 56. FIG. FIG. 11 eliminates the superimposed display of the multiple polygon models 51 to 53 of FIG. 10 and shows only the actual drawing result 58. FIG.

From the alpha value information of the polygon model 51, the applicable drawing target drawing unit 108 stores the alpha value that the alpha value of the polygon model 51 is 0.4 in the pixel of the drawing result 58. The values in the pixels of FIG. 11 represent the stored alpha values.

In addition, the applicable drawing target drawing unit 108 acquires the number of pixels in which the detailed buffer 56 is actually filled with the polygon model 51 after performing the process of drawing the polygon model 51 in the detail buffer 56 . In the case of the polygon model 51, as can be seen from FIG. 11, the applicable drawing target drawing unit 108 acquires information that the number of pixels actually drawn in the detail buffer 56 is 1 pixel.

Similarly, the applicable drawing target drawing unit 108 draws the polygon model 52 in the detail buffer 56 of the detail buffer storage unit 109 .

However, since the polygon model 52 does not include the center of any pixel in the detail buffer 56, it disappears without being drawn. Therefore, even if the applicable drawing target drawing unit 108 draws the polygon model 52 in the detail buffer 56, only the polygon model 51 is drawn as shown in FIGS. 10 and 11. FIG.

After performing the process of drawing the polygon model 52 in the detail buffer 56 , the applicable drawing target drawing unit 108 acquires the number of pixels in which the detail buffer 56 is actually filled with the polygon model 52 . In the case of the polygon model 52, as can be seen from FIG. 11, the detail buffer 56 is not filled with even one pixel by the polygon model 52, so the applicable drawing target drawing unit 108 acquires the information that the number of pixels is 0 pixel.

Next, the applicable drawing target drawing unit 108 draws the polygon model 53 in the detail buffer 56 of the detail buffer storage unit 109 .

FIG. 12 shows a drawing result 58 obtained by drawing a polygon model 51 to be applied drawing in the detail buffer 56, a drawing result 59 obtained by drawing another polygon model 53 to be applied drawing in the detail buffer 56, and a plurality of polygon models 51 to 53. is superimposed. Since the polygon model 53 includes the center of one pixel in the detail buffer 56, the polygon model 53 is drawn by filling the pixel with the RGB values associated with the polygon model 53 included in the drawing information. The drawing result of the polygon model 53 is the drawing result 59 of one pixel in FIG.

FIG. 13 shows a drawing result 58 obtained by drawing the polygon model 51 to be applied drawing in the detail buffer 56 and a drawing result 59 obtained by drawing another polygon model 53 to be applied drawing in the detail buffer 56 . FIG. 13 eliminates the superimposed display of the multiple polygon models 51-53 of FIG. 12 and shows only the actual drawing results 58-59.

From the alpha value information of the polygon model 53, the applicable drawing target drawing unit 108 stores the alpha value that the alpha value of the polygon model 53 is 1.0 in the pixel of the drawing result 59. The value in each pixel in FIG. 13 represents the stored alpha value.

Also, the applicable drawing target drawing unit 108 acquires the number of pixels in which the detailed buffer 56 is actually filled with the polygon model 53 after performing the process of drawing the polygon model 53 in the detail buffer 56 . In the case of the polygon model 53, as can be seen from FIG. 13, the applicable drawing target drawing unit 108 acquires the information that the number of pixels actually drawn in the detail buffer 56 is 1 pixel. Hereinafter, information indicating the number of pixels drawn in the detail buffer by the applicable drawing target acquired by the applicable drawing target drawing unit 108 will be referred to as pixel number information.

Returning to FIG. 5, the applied drawing target drawing unit 108 transmits the drawing information, the tag information of the drawing target that is the applicable drawing target, the alpha value information, and the pixel number information to the dot printing unit 112, and the process proceeds to step S17. move on.

In step S17, the dot printing unit 112 receives the drawing information, the tag information of the drawing target that is the applied drawing target, the alpha value information, and the number of pixels information from the applied drawing target drawing unit . The dot printing unit 112 identifies, from the pixel count information, the erasure-applied drawing target, which is the applied drawing target that has disappeared without being drawn by the applicable drawing-target drawing unit 108. Dot the pixel and draw the erasure-applied draw target to the detail buffer. At this time, the alpha value of the alpha value information is also stored in the detail buffer.

In the first embodiment, the dot printing unit 112 receives the drawing information from the applicable drawing target drawing unit 108, the tag information of the polygon model 51 tagged as the applicable drawing target, and the tag information of the polygon model 51 tagged as the applicable drawing target. The tag information of the polygon model 52, the tag information of the polygon model 53 tagged as being the applicable drawing target, the alpha value information that the alpha value of the polygon model 51 is 0.4, and the alpha value of the polygon model 52. is 0.7, alpha value information that the alpha value of the polygon model 53 is 1.0, and pixel number that is drawn in the detail buffer 56 by the polygon model 51 is 1 pixel. number information, pixel number information that the number of pixels drawn in the detail buffer 56 by the polygon model 52 is 0 pixels, and pixel number information that the number of pixels drawn in the detail buffer 56 by the polygon model 53 is 1 pixel. and receive.

From the pixel count information, the dot printing unit 112 identifies an applied drawing target with a pixel count of 0 as a lost applied drawing target that has disappeared without being drawn by the applied drawing target drawing unit 108 . Specifically, since the pixel number information of the polygon model 52 is 0 pixel, the dot printing unit 112 identifies the polygon model 52 as the erasure applied drawing target.

The dotting unit 112 dots the pixel in the detail buffer 56 corresponding to the position of the polygon model 52 to which erasure is applied, and renders the erasure-applied drawing target in the detail buffer. Specifically, the dotting unit 112 dots the pixels in the detail buffer 56 corresponding to the positions of the vertices of the polygon model 52 . Here, when drawing a two- or more-dimensional drawing target, if the center of a pixel is included in the drawing target with respect to the buffer, the pixel is filled and the drawing target is drawn. When drawing, that is, when drawing a point, the pixel where the point was struck is filled in the buffer, and the drawing target is drawn. Therefore, the dotting unit 112 can render the polygon model 52 to be erased and rendered in the detail buffer 56 by dotting the pixels in the detail buffer 56 corresponding to the positions of the vertices of the polygon model 52 . In addition, in the case of a drawing target such as a circle or an ellipse that does not have vertices, the dotting unit 112 approximates a polygon and places dots at the positions of the vertices of the polygon.

FIG. 14 shows a drawing result 58 obtained by drawing a polygon model 51 to be applied drawing in the detail buffer 56, a drawing result 59 obtained by drawing another polygon model 53 to be applied drawing in the detail buffer 56, and another polygon to be applied drawing. 5 is a diagram in which a drawing result 60 obtained by drawing a model 52 in a detail buffer 56 and a plurality of polygon models 51 to 53 are superimposed. Since the polygon model 52 has three vertices, the dot marking unit 112 dots the pixels in the detail buffer 56 corresponding to the positions of the three vertices of the polygon model 52 . Then, three pixels in the detail buffer 56 corresponding to the three vertices of the polygon model 52 are filled with the RGB values attached to the polygon model 52 included in the drawing information, and the polygon model 52 is drawn. The drawing result of the polygon model 52 is the 3-pixel drawing result 60 in FIG.

FIG. 15 shows a drawing result 58 obtained by drawing a polygon model 51 to be applied drawing in the detail buffer 56, a drawing result 59 obtained by drawing another polygon model 53 to be applied drawing in the detail buffer 56, and another polygon to be applied drawing. FIG. 6 is a drawing showing a drawing result 60 of the model 52 drawn in the detail buffer 56; FIG. 15 eliminates the superimposed display of the multiple polygon models 51-53 of FIG. 14 and shows only the actual drawing results 58-60.

From the alpha value information of the polygon model 52, the dot printing unit 112 stores an alpha value that the alpha value of the polygon model 52 is 0.7 in each pixel forming the drawing result 60. The value in each pixel in FIG. 15 represents the stored alpha value.

Returning to FIG. 5, the dot printing unit 112 sends a notification of the end of drawing to the detail buffer to the blend processing unit 110, and proceeds to step S18. Further, if there is no drawing target to be erased, the dot printing unit 112 does nothing because the drawing target to be applied has already been drawn in the detail buffer, and notifies the blend processing unit 110 of the end of drawing to the detail buffer. It transmits, and it progresses to step S18.

In step S18, the blend processing unit 110 receives a notification of completion of drawing to the drawing destination buffer from the unapplied drawing target drawing unit 107, and receives a notification of completion of drawing to the detail buffer from the dot printing unit 112. For each pixel of the detail buffer stored in the detail buffer 109, the RGB values are alpha blended with the alpha value for the rendering destination buffer stored in the destination buffer storage unit 103, and the applied rendering target is set to the rendering destination buffer. draw.

In the first embodiment, the blend processing unit 110 alpha-blends the RGB values of the detail buffer 56 of FIG. The models 51 to 53 are drawn in the drawing destination buffer 55 . Specifically, the blend processing unit 110 stores the rendering destination buffer 55 of FIG. The RGB values of the polygon model 51 are alpha-blended at 0.4. Similarly, the blend processing unit 110 stores the alpha of each pixel in the drawing result 60 of the polygon model 52 in FIG. Alpha blend the RGB values of the polygonal model 52 with a value of 0.7. The blend processing unit 110 sets the alpha value of 1.0 for one pixel of the drawing result 59 of the polygon model 53 of FIG. 15 to the drawing destination buffer 55 of FIG. alpha blend the RGB values of the polygon model 53 with .

FIG. 16 is a drawing showing the result of drawing all polygon models in the drawing destination buffer 55. FIG. A rendering result 61 is obtained by rendering the polygon model 51 in the rendering destination buffer 55 . The drawing result 61 is the result of alpha blending the RGB values of the polygon model 51 with the alpha value of 0.4 for one pixel of the drawing result 58 of the polygon model 51 of FIG. 15 in the drawing destination buffer 55 of FIG. , and in FIG. 16 are painted with vertical stripes in a simulated manner.

A drawing result 62 is obtained by drawing the polygon model 52 in the drawing destination buffer 55 . The drawing result 62 is obtained by alpha-blending the RGB values of the polygon model 52 with the alpha value of 0.7 for each of the three pixels of the drawing result 60 of the polygon model 52 in FIG. 15 for the drawing destination buffer 55 in FIG. This is the result, which is shaded with slanted lines in FIG.

A drawing result 63 is obtained by drawing the polygon model 53 in the drawing destination buffer 55 . The drawing result 63 is the result of alpha blending the RGB values of the polygon model 53 with the alpha value of 1.0 for one pixel of the drawing result 59 of the polygon model 53 of FIG. 15 in the drawing destination buffer 55 of FIG. , and in FIG. 16 are painted with horizontal stripes in a simulated fashion.

A drawing result 57 is obtained by drawing the polygon model 54 in the drawing destination buffer 55 . The drawing result 57 in FIG. 16 is the same as the drawing result 57 in FIG.

Returning to FIG. 5, the blend processing unit 110 transmits a notification of the end of alpha blending to the output control unit 111, and proceeds to step S19.

In step S19 , the output control unit 111 receives the alpha blend end notification from the blend processing unit 110 and controls the output device 5 to output the drawing destination buffer stored in the drawing destination buffer storage unit 103 . .

In the first embodiment, the display device, which is the output device 5, is controlled so as to output the scene drawn in the drawing destination buffer 55 stored in the drawing destination buffer storage unit 103. FIG.

Even after executing step S19, the process returns to step S11, and the above process is repeated until there is a trigger to end the process, such as turning off the power or performing an end operation. Although the above processing is repeated, it may be performed only once.

As described above, in the rendering processing system 1 according to the first embodiment, the rendering target determined as the non-applicable rendering target by the application determination unit 106 is stored in the rendering destination buffer storage unit 103 by the non-applicable rendering target rendering unit 107. The calculation unit 104 calculates the area of the drawing target determined by the application determining unit 106 as the applicable drawing target, and the determining unit 105 determines the alpha value of the applicable drawing target from the calculated area. Then, the applicable drawing target drawing unit 108 draws the applicable drawing target in a detail buffer which is a buffer different from the drawing destination buffer, and the dot printing unit 112 dots the pixels in the detail buffer corresponding to the position of the applicable drawing target. , the blend processing unit 110 alpha-blends the detail buffer to the drawing destination buffer with the alpha value of the applied drawing target, and the output control unit 111 draws to the output device 5 in the drawing destination buffer. Since the scene is controlled to be output, even if the drawing target is not positioned at the center of the pixel, the drawing target is drawn and the drawing target can be displayed on the display screen.

Embodiment 2.
In the first embodiment, in the drawing processing system 1, the input device 4 receives input of drawing information and tag information, the acquisition unit 101 acquires the drawing information and tag information from the input device 4, and the application determination unit 106 receives The tag information was used to determine whether the drawing target was an applicable drawing target or an unapplied drawing target. In the second embodiment, as shown in FIGS. 17 to 19, in the drawing processing system 2, the input device 6 only receives input of drawing information, and the obtaining unit 201 obtains the drawing information from the input device 6. , the application determination unit 202 determines from the drawing information whether the drawing target is an applicable drawing target or an unapplied drawing target.

With this determination, the user does not need to input the tag information into the input device 6, and the drawing processing system 2 automatically determines whether the drawing target is an applicable drawing target or an unapplied drawing target. load can be reduced.

In the first embodiment, the drawing processing system 1 collectively draws both the non-applicable drawing target and the applicable drawing target. I will draw. Other than that, it is the same as the first embodiment. In the following description, the configurations and operations described in Embodiment 1 are denoted by the same reference numerals, and duplicate descriptions are omitted.

In the second embodiment, as in the first embodiment, as an example, the present disclosure is applied to the case where the drawing information, which is the information for drawing the entire scene, includes a drawing target that is not positioned at the center of the pixel. A case of application will be described below.

FIG. 17 is a block diagram of the drawing processing system 2 including the drawing processing device 200 according to the second embodiment. The drawing processing system 2 includes an input device 6 to which drawing information is input, a drawing processing device 200 that uses the drawing information to draw the drawing information, and an output that outputs the scene processed by the drawing processing device 200. a device 5;

In Embodiment 2, the input device 4 of FIG. Instead of the drawing target drawing unit 108, the dot printing unit 112, and the blend processing unit 110, the input device 6, the acquisition unit 201, the application determination unit 202, the non-applicable drawing target drawing unit 203, and the calculation unit 204 , a determination unit 205, an applicable drawing target drawing unit 209, a dot printing unit 210, a blend processing unit 207, an end determination unit 206, and an accumulation storage unit 208 are added as components of the functional block diagram.

The input device 6 accepts, for example, only the drawing information of the entire scene including the drawing target information such as the polygon model input by the user.

The drawing processing device 200 includes an acquisition unit 201 that acquires drawing information from the input device 6, a creation unit 102 that creates a drawing destination buffer and a detail buffer, and whether or not to perform detailed drawing processing on a drawing target based on the drawing information. an application determination unit 202 that determines whether a drawing target is an unapplied drawing target that is drawn in a drawing destination buffer or an applicable drawing target that is drawn in a detail buffer that is a buffer different from the drawing destination buffer; A non-applicable drawing target drawing unit 203 that draws a non-applicable drawing target tagged as not applying detailed drawing processing to a drawing destination buffer, and a calculation that calculates the area of the applicable drawing target tagged as applying detailed drawing processing. a determining unit 205 that determines the alpha value of the applicable drawing target from the calculated area; an applicable drawing target drawing unit 209 that draws the applicable drawing target in the detail buffer and obtains the number of drawn pixels; From the number of pixels drawn, identify whether the applied drawing target is a lost applied drawing target that has disappeared without being drawn in the detail buffer. A dot printing unit 210 dots the pixels in the detail buffer corresponding to the target position and draws the erasing-applied drawing target in the detail buffer, and the drawing information includes the drawing destination buffer or the drawing target that is not drawn in the detail buffer. A termination determination unit 206 that determines termination based on whether the drawing target is A blend processing unit 207 for drawing in a drawing destination buffer, an output control unit 111 for controlling output of the scene drawn in the drawing destination buffer to the output device 5, a drawing destination buffer storage unit 103 for storing the drawing destination buffer, A detail buffer storage unit 109 stores a detail buffer, and an accumulation storage unit 208 accumulates and stores information drawn in the detail buffer. Note that the unapplied drawing target drawing portion 203 corresponds to the first drawing target drawing portion, and the applicable drawing target drawing portion 209 corresponds to the second drawing target drawing portion.

Next, the hardware configuration of the drawing processing system 2 according to Embodiment 2 will be described. A hardware configuration diagram of the drawing processing system 2 is the same as that of FIG. 2 of the first embodiment.

However, the hardware configuration of the input device 6 is the same as that of the input device 4. The hardware configuration of the acquisition unit 201 is the same as that of the acquisition unit 101 . The hardware configuration of the application determination unit 202 is the same as that of the application determination unit 106 . The hardware configuration of the non-applicable drawing target rendering unit 203 is the same as that of the non-applicable drawing target rendering unit 107 . The hardware configuration of the calculator 204 is similar to that of the calculator 104 . The hardware configuration of the determination unit 205 is the same as that of the determination unit 105 . The hardware configuration of the applicable rendering target rendering unit 209 is the same as that of the applicable rendering target rendering unit 108 . The hardware configuration of the dotting section 210 is the same as that of the dotting section 112 . The hardware configuration of the blend processing unit 207 is the same as that of the blend processing unit 110 . The termination determination unit 206 is implemented by a program stored in the graphic memory 45, and is implemented by reading and executing the program loaded into the graphic memory 45 by the GPU 44. FIG. The accumulation storage unit 208 is implemented by the graphic memory 45 .

It should be noted that the graphic memory 45 may implement the functions of the end determination unit 206 and the functions of other units in separate memories. Also, the accumulation storage unit 208 and other storage units may be realized by separate memories. Other than that, the hardware configuration is the same as that of the first embodiment.

Next, the operation of the drawing processing system 2 will be explained.

FIG. 18 is a flowchart showing the operation of the drawing processing system 2 according to Embodiment 2 of the present disclosure. The operation of the drawing processing system 2 will be described below with reference to FIG.

In step S4, the input device 6 accepts input of drawing information. For example, a user uses a mouse, a keyboard, or the like to specify drawing information and input it to the input device 6, and the input device 6 receives the input.

As in the first embodiment, the drawing information received by the input device 6 is automatically extracted from the drawing information received via communication and the drawing information that satisfies a predetermined criterion without being specified by the user. Any drawing information may be used, such as drawing information extracted by machine learning. In the second embodiment, as in the first embodiment, for example, it is assumed that the rendering target is a three-dimensional polygon model and the rendering information includes information on the rendering target, which is the polygon model.

In Embodiment 2, as in Embodiment 1, a case where the present disclosure is applied to FIG. 4 will be described below. The input device 6 transmits the drawing information to the drawing processing device 200, and proceeds to step S5.

In step S5 , the drawing processing device 200 receives drawing information from the input device 6 . The drawing processing device 200 performs drawing processing using the received drawing information. Details will be described later. The drawing processing device 200 controls the output device 5 to output the scene drawn in the drawing destination buffer, and proceeds to step S6.

In step S6, the output device 5 outputs the scene drawn in the drawing destination buffer to a display device such as a display under the control of the drawing processing device 200, as in step S3 of the first embodiment.

Even after executing step S6, the process returns to step S4, and the above process is repeated until there is a trigger to end the process, such as turning off the power or performing an end operation. Although the above processing is repeated, it may be performed only once.

Next, the operation of the rendering processing device 200 will be described.

FIG. 19 is a flowchart showing the operation of the drawing processing device 200 according to Embodiment 2 of the present disclosure. The operation of the rendering processing device 200 will be described below with reference to FIG.

In step S21, the acquisition unit 201 acquires drawing information from the input device 6. The acquisition unit 201 transmits the drawing information to the creation unit 102, and proceeds to step S22.

In step S22, the creation unit 102 receives the drawing information from the acquisition unit 201. The creation unit 102 transmits the drawing information to the application determination unit 202, and proceeds to step S23. Otherwise, step S22 is the same as step S12 of the first embodiment. However, in the first embodiment, all applicable drawing targets are drawn in the detail buffer, but in the second embodiment, one applicable drawing target is drawn.

In step S23, the application determination unit 202 receives the drawing information from the creation unit 102. The application determination unit 202 uses the drawing information to determine whether one of the drawing targets included in the drawing information is an applicable drawing target or an unapplied drawing target. In the second embodiment, for example, the application determination unit 202 calculates the area s of the object to be drawn and determines whether or not the area s is less than the threshold value X that is determined and stored in advance. Threshold X is a size large enough for the user not to perform detailed drawing processing on the drawing target, such as 1.0 pixels or 5.0 pixels, or a size small enough to perform detailed drawing processing. do it.

The area s of the object to be drawn may be calculated by calculating the area of the object itself. You can make an estimate. In the second embodiment, for example, the approximate value of the area of the polygon model 51 in FIG. 4 is 0.8 pixels, and the polygon

Assume that the approximate area value of the model 52 is 1.4 pixels, the approximate area value of the polygon model 53 is 2.4 pixels, and the approximate area value of the polygon model 54 is 16.8 pixels. Also, assume that the predetermined threshold value X is 3.0 pixels.

If the drawing target area s is equal to or greater than the predetermined threshold value X, the application determination unit 202 determines No in step S23. The application determining unit 202 determines that detailed drawing processing is not necessary because the drawing size of the drawing target is large, and generates tag information indicating that the drawing target is an unapplied drawing target. The application determining unit 202 transmits the drawing information and the tag information of the drawing target that is the non-applicable drawing target to the non-applicable drawing target drawing unit 203, and proceeds to step S24.

In the second embodiment, in the case of the polygon model 54, the approximate value of the area of the polygon model 54 is 16.8 pixels, which is equal to or greater than the predetermined threshold value of 3.0 pixels. , Step S23: No. The applicability determining unit 202 generates tag information indicating that the polygon model 54 is an inapplicable drawing target, assuming that detailed drawing processing is unnecessary because the drawing size of the polygon model 54 is large. The applicability determining unit 202 transmits the drawing information and the tag information of the polygon model 54 tagged as the non-applicable drawing target to the drawing unit 203, and proceeds to step S24.

On the other hand, if the drawing target area s is less than the predetermined threshold value X, the application determination unit 202 determines Yes in step S23. The application determining unit 202 generates tag information indicating that the drawing target is an applicable drawing target, assuming that the drawing size of the drawing target is small and therefore detailed drawing processing needs to be performed. The application determination unit 202 transmits the drawing information and the tag information of the drawing target, which is the applicable drawing target, to the calculation unit 204, and proceeds to step S25.

In the second embodiment, in the case of the polygon model 51, the approximate value of the area of the polygon model 51 is 0.8 pixels, which is less than the predetermined threshold value of 3.0 pixels. , step S23: Yes. The application determination unit 202 generates tag information indicating that the polygon model 51 is an object of application drawing, because the drawing size of the polygon model 51 is small and detailed drawing processing needs to be performed. The application determination unit 202 transmits the drawing information and the tag information of the polygon model 51 tagged as the application drawing target to the calculation unit 204, and proceeds to step S25.

Similarly, in the case of the polygon model 52, the approximate value of the area of the polygon model 52 is 1.4 pixels, which is less than the predetermined threshold value of 3.0 pixels. : Yes. The application determination unit 202 generates tag information indicating that the polygon model 52 is an object of application drawing, because the drawing size of the polygon model 52 is small and detailed drawing processing needs to be performed. The application determination unit 202 transmits the drawing information and the tag information of the polygon model 52 tagged as the application drawing target to the calculation unit 204, and proceeds to step S25.

In the case of the polygon model 53, the approximate value of the area of the polygon model 53 is 2.4 pixels, which is less than the predetermined threshold value of 3.0 pixels. Become. The application determination unit 202 generates tag information indicating that the polygon model 53 is an object of application drawing, because the drawing size of the polygon model 53 is small and detailed drawing processing needs to be performed. The application determination unit 202 transmits the drawing information and the tag information of the polygon model 53 tagged as the application drawing target to the calculation unit 204, and proceeds to step S25.

In step S24 , the non-applicable drawing target drawing unit 203 receives the drawing information and the tag information of the drawing target that is the non-applicable drawing target from the application determination unit 202 . Draw the applicable draw target.

In the second embodiment, the non-applicable drawing target drawing unit 203 receives the drawing information from the application determination unit 202 and the tag information of the polygon model 54 tagged as the non-applicable drawing target, and stores the drawing destination buffer. The polygon model 54 is drawn in the drawing destination buffer 55 of the unit 103 .

A diagram in which a drawing result 57 obtained by drawing the polygon model 54 in the drawing destination buffer 55 and the polygon model 54 are superimposed is the same as FIG. 7 of the first embodiment. A drawing result 57 obtained by drawing the polygon model 54 in the drawing destination buffer 55 is the same as FIG. 8 of the first embodiment.

When the non-applicable drawing target drawing unit 203 finishes drawing one non-applicable drawing target in the drawing destination buffer, the drawing unit 203 transmits a notification of the end of drawing to the drawing destination buffer to the end determination unit 206, and step S29. proceed to

On the other hand, in step S25, the calculation 204 receives the drawing information and the tag information of the drawing target, which is the applicable drawing target, from the application determination unit 202, and calculates the area of the applicable drawing target. The method of calculating the area is the same as in step S14 of the first embodiment.

In the second embodiment, the calculation unit 204 receives the drawing information from the application determination unit 202 and the tag information of the polygon model 51 tagged as the application drawing target. Alternatively, the calculation unit 204 receives the drawing information from the application determination unit 202 and the tag information of the polygon model 52 tagged as the application drawing target. Alternatively, the calculation unit 204 receives the drawing information from the application determination unit 202 and the tag information of the polygon model 53 tagged as the application drawing target.

The calculation unit 204 calculates the area of the applicable drawing target described in the tag information received from the application determination unit 202 . The calculation unit 204 calculates the area of the polygon model 51 when the applicable drawing target described in the tag information is the polygon model 51 . For example, assume that the calculation unit 204 calculates the area of the polygon model 51 to be 0.4 pixels.

Similarly, the calculation unit 204 calculates the area of the polygon model 52 when the applicable drawing target described in the tag information is the polygon model 52 . For example, assume that the calculation unit 204 calculates the area of the polygon model 52 to be 0.7 pixels.

The calculation unit 204 calculates the area of the polygon model 53 when the applicable drawing target described in the tag information is the polygon model 53 . For example, assume that the calculation unit 204 calculates the area of the polygon model 53 to be 1.2 pixels. Hereinafter, information indicating the area of the applicable drawing target calculated by the calculation unit 204 will be referred to as area information, as in the first embodiment.

The calculating unit 204 transmits the drawing information, the tag information of the drawing target that is the applicable drawing target, and the area information of the applicable drawing target to the determining unit 205, and proceeds to step S26.

In step S26, the determining unit 205 receives from the calculating unit 204 the drawing information, the tag information of the drawing target that is the applied drawing target, and the area information of the applied drawing target. The determining unit 205 determines an alpha value representing the transparency of the applied rendering target using the area information. The method of determining the alpha value is the same as in step S15 of the first embodiment.

In the second embodiment, for example, the determination unit 205 receives the drawing information from the calculation unit 204, the tag information of the polygon model 51 tagged as being the applicable drawing target, and the polygon model 51 having an area of 0.4 pixels. Receive area information that there is. The method of determining the alpha value of polygon model 51 is the same as in step S15 of Embodiment 1, and determination unit 205 determines the alpha value of polygon model 51 to be 0.4.

Alternatively, the determination unit 205 receives the drawing information from the calculation unit 204, the tag information of the polygon model 52 tagged as being the applicable drawing target, and the area information that the area of the polygon model 52 is 0.7 pixels. receive. The method of determining the alpha value of the polygon model 52 is the same as in step S15 of Embodiment 1, and the determination unit 205 determines the alpha value of the polygon model 52 to be 0.7.

Alternatively, the determination unit 205 obtains from the calculation unit 204 the drawing information, the tag information of the polygon model 53 tagged as the applicable drawing target, and the area information that the area of the polygon model 53 is 1.2 pixels. receive. The method of determining the alpha value of polygon model 53 is the same as in step S15 of Embodiment 1, and determination unit 205 determines the alpha value of polygon model 53 to be 1.0. Hereinafter, information indicating the alpha value of the drawing target to be applied determined by the determining unit 205 will be referred to as alpha value information, as in the first embodiment.

The determining unit 205 transmits the drawing information, the tag information of the drawing target that is the applicable drawing target, and the alpha value information of the applicable drawing target to the applicable drawing target drawing unit 209, and proceeds to step S27.

In step S27 , the applicable drawing target drawing unit 209 receives the drawing information, the tag information of the drawing target that is the applicable drawing target, and the alpha value information of the applicable drawing target from the determining unit 205 . Draws the applicable draw target in the detail buffer. At this time, alpha value information is also stored in the detail buffer. Also, the applicable drawing target drawing unit 209 acquires the number of pixels drawn in the detail buffer. The method of drawing the drawing target, the method of storing alpha value information in the detail buffer, and the method of acquiring the number of pixels drawn in the detail buffer are the same as in step S16 of the first embodiment. However, in the second embodiment, the drawing processing system 2 draws drawing targets one by one, so the polygon model 51, the polygon model 52, and the polygon model 53 are not drawn at the same time.

In the second embodiment, for example, the applicable drawing target drawing unit 209 obtains the drawing information from the determining unit 205, the tag information of the polygon model 51 tagged as being the applicable drawing target, and the alpha value of the polygon model 51 being 0. .4 and the alpha value information. The applied drawing target drawing unit 209 draws the polygon model 51 in the detail buffer 56 of the detail buffer storage unit 109 . A diagram in which a drawing result 58 obtained by drawing the polygon model 51 to be applied drawing in the detail buffer 56 and a plurality of polygon models 51 to 53 are superimposed is the same as FIG. 10 of the first embodiment. A drawing result 58 obtained by drawing the polygon model 51 to be applied drawing in the detail buffer 56 is the same as FIG. 11 of the first embodiment. The applied drawing target drawing unit 209 stores an alpha value that the alpha value of the polygon model 51 is 0.4 in the pixel of the drawing result 58 . Further, the applicable drawing target drawing unit 209 acquires information that the number of pixels in which the detail buffer 56 is actually filled by the polygon model 51 is 1 pixel.

Alternatively, the applicable drawing target drawing unit 209 receives the drawing information from the determination unit 205, the tag information of the polygon model 52 tagged as the applicable drawing target, and the alpha value of the polygon model 52 whose alpha value is 0.7. receive value information. The applied drawing target drawing unit 209 draws the polygon model 52 in the detail buffer 56 of the detail buffer storage unit 109 . However, since the polygon model 52 does not include the center of any pixel in the detail buffer 56, it disappears without being drawn as in the first embodiment. Therefore, even if the applicable drawing target drawing unit 209 performs the process of drawing the polygon model 52 in the detail buffer 56, the polygon model 52 is not drawn, so the detail buffer 56 in FIG. 6 remains blank. end up The applied drawing target drawing unit 209 acquires information indicating that the number of pixels for which the detail buffer 56 is actually filled by the polygon model 52 is 0 pixel.

Alternatively, the applicable drawing target drawing unit 209 receives the drawing information from the determination unit 205, the tag information of the polygon model 53 tagged as the applicable drawing target, and the alpha value of the polygon model 53 whose alpha value is 1.0. receive value information. The applied drawing target drawing unit 209 draws the polygon model 53 in the detail buffer 56 of the detail buffer storage unit 109 . A drawing result 59 obtained by drawing a polygon model 53 to be applied drawing in a detail buffer 56 and a plurality of polygon models 51 to 53 are superimposed. It is the same as the drawing in which the drawing result 58 drawn in 56 is deleted. A drawing result 59 obtained by drawing the polygon model 53 to be applied drawing in the detail buffer 56 is a drawing result 58 obtained by drawing the polygon model 51 to be applied drawing in the detail buffer 56 from FIG. 13 of the first embodiment. is the same as the figure without The applied drawing target drawing unit 209 stores an alpha value that the alpha value of the polygon model 53 is 1.0 in the pixel of the drawing result 59 . Also, the applied drawing target drawing unit 209 acquires information that the number of pixels in which the detail buffer 56 is actually filled by the polygon model 53 is 1 pixel. Hereinafter, information indicating the number of pixels drawn in the detail buffer by the applicable drawing target acquired by the applicable drawing target drawing unit 209 will be referred to as pixel number information, as in the first embodiment.

The applied drawing target drawing unit 209 transmits the drawing information, the tag information of the drawing target that is the applied drawing target, the alpha value information, the number of pixels information, and the alpha value information of the applied drawing target to the dot printing unit 210, Proceed to step S28.

In step S28, the dot printing section 210 receives from the applied drawing target drawing section 209 the drawing information, the tag information of the drawing target that is the applied drawing target, the alpha value information, and the pixel number information. The dot printing unit 210 identifies from the pixel count information whether the applied drawing target is a lost applied drawing target that has disappeared without being drawn by the applied drawing target drawing unit 209 . When the applied drawing target is an erasure applied drawing target, the dot dot dot part 210 dots the pixel in the detail buffer corresponding to the position of the erasure applied drawing target, and renders the erasure applied drawing target in the detail buffer. At this time, alpha value information is also stored in the detail buffer. How to determine if it is an erasure-applied drawtarget, how to dot the pixel in the detail buffer corresponding to the position of the erasure-applied drawtarget, how to draw the loss-applied drawtarget to the detail buffer, and how to store alpha value information in the detail buffer The method of storing is the same as step S17 of the first embodiment. If the applied drawing target is not the disappearing applied drawing target, the dot printing unit 210 does nothing, as in step S17 of the first embodiment, because the applied drawing target has already been drawn in the detail buffer.

In the second embodiment, for example, the dot printing unit 210 receives the drawing information from the applicable drawing target drawing unit 209, the tag information of the polygon model 51 tagged as the applicable drawing target, and the alpha value of the polygon model 51 being 0. .4 and pixel number information that the number of pixels drawn in the detail buffer 56 by the polygon model 51 is 1 pixel. Based on the pixel number information, the dot printing unit 210 specifies that the polygon model 51 is not a target for erasure-applied drawing because the pixel number information of the polygon model 51 is 1 pixel. Since the polygon model 51 has already been drawn in the detail buffer, the dotting section 210 does nothing.

Alternatively, the dot printing unit 210 receives the drawing information from the applicable drawing target drawing unit 209, the tag information of the polygon model 52 tagged as being the applicable drawing target, and the alpha value of the polygon model 52 whose alpha value is 0.7. Receive value information and pixel count information that the number of pixels drawn by the polygon model 52 into the detail buffer 56 is 0 pixels. Based on the pixel number information, the dot printing unit 210 specifies that the polygon model 52 is to be erased and drawn because the pixel number information of the polygon model 52 is 0 pixel.

The dot printing unit 210 draws the erasure-applied drawing target in the detail buffer in the same manner as in step S17 of the first embodiment. A drawing result 60 obtained by drawing a polygon model 52 to be applied drawing in a detail buffer 56 and a plurality of polygon models 51 to 53 are superimposed on each other. 56 and a drawing result 59 obtained by drawing another polygon model 53 to be applied drawing in the detail buffer 56 are deleted. A drawing result 60 obtained by drawing the polygon model 52 to be applied drawing in the detail buffer 56 is different from the drawing result 58 obtained by drawing the polygon model 51 to be applied drawing in the detail buffer 56 from FIG. 15 of the first embodiment. 2 is the same as the drawing in which the drawing result 59 obtained by drawing the polygon model 53 to be drawn in the detail buffer 56 is deleted. Based on the alpha value information of the polygon model 52, the dot printing unit 210 causes each pixel forming the drawing result 60 to store an alpha value that the alpha value of the polygon model 52 is 0.7.

Alternatively, the dot printing unit 210 receives the drawing information from the applicable drawing target drawing unit 209, the tag information of the polygon model 53 tagged as the applicable drawing target, and the alpha value of the polygon model 53 whose alpha value is 1.0. It receives value information and pixel number information that the number of pixels drawn by the polygon model 53 into the detail buffer 56 is 1 pixel. Based on the pixel number information, the dot printing unit 210 specifies that the polygon model 53 is not a drawing object to be erased because the pixel number information of the polygon model 53 is 1 pixel. Since the polygon model 53 has already been drawn in the detail buffer, the dotting section 210 does nothing.

The dot printing unit 210 sends a notification of the end of drawing to the detail buffer to the end determination unit 206, and proceeds to step S29.

In step S29, when the end determination unit 206 receives a notification of the end of drawing to the drawing destination buffer from the non-applied drawing target drawing unit 203 or a notification of the end of drawing to the detail buffer from the dot printing unit 210, It is determined whether or not there is another drawing target to be drawn in the drawing destination buffer.

The termination determination unit 206 has not yet performed drawing processing for the non-applicable drawing target drawing unit 203, the applicable drawing target drawing unit 209, or the dot printing unit 210, and the drawing target to be drawn in the drawing destination buffer has not yet been processed. If there is, step S29: Yes. When the end determination unit 206 receives the notification of the end of drawing to the drawing destination buffer from the non-applicable drawing target drawing unit 203 and there are still drawing targets to be drawn in the drawing destination buffer, the process returns to step S23. Render processing of the rendering target that has not been rendered.

When the end determination unit 206 receives the notification of the end of drawing to the detail buffer from the dot printing unit 210 and there is still a drawing target to be drawn in the drawing destination buffer, After storing the stored detail buffer that has undergone the drawing processing and making it possible to create a new detail buffer in the detail buffer storage unit 109, the drawing processing device 200 returns to step S23, and draws the drawing target that has not undergone the drawing processing. to process the drawing.

On the other hand, if the end determination unit 206 has not yet performed rendering processing and there is no rendering target to be rendered in the rendering destination buffer, step S29: No. The end determination unit 206 collectively transmits all the detail buffers stored in the accumulation storage unit 208 to the blend processing unit 207, and proceeds to step S30.

In the second embodiment, the end determination unit 206 performs step S29: Yes. The end determination unit 206 receives a notification from the non-applicable drawing target drawing unit 203 that the drawing processing of the polygon model 54 is completed, and that the drawing to the drawing destination buffer has ended, and there are still drawing targets to be drawn in the drawing destination buffer. If so, the process returns to step S23 to perform drawing processing on the drawing target that has not been subjected to drawing processing.

The end determination unit 206 receives the notification of the end of drawing to the detail buffer from the dot printing unit 210 after drawing processing for any of the polygon models 51 to 53 has been completed, and there is still a drawing object to be drawn in the drawing destination buffer. In this case, the detailed buffer in which any of the polygon models 51 to 53 stored in the detailed buffer storage unit 109 is drawn is stored in the accumulation storage unit 208 so that a new detailed buffer can be created in the detail buffer storage unit 109. After that, the process returns to step S23, and the drawing object that has not been subjected to the drawing process is subjected to the drawing process.

On the other hand, if the end determination unit 206 has completed rendering processing for all of the polygon models 51 to 54, step S29: No. The end determination unit 206 collectively transmits all of the detailed buffers in which the polygon models 51 to 53 stored in the accumulation storage unit 208 are drawn to the blend processing unit 207, and proceeds to step S30.

In step S30, the blend processing unit 207 collectively receives from the end determination unit 206 all of the detailed buffers in which the applicable drawing targets are drawn. In the first embodiment, the blend processing unit 110 alpha-blends one detail buffer and the drawing destination buffer. do. Specifically, the blend processing unit 207 performs alpha-blending of one detail buffer and the drawing destination buffer in order by the number of detail buffers. The method of alpha blending is the same as step S18 of the first embodiment. A drawing showing the result of drawing all the polygon models in the drawing destination buffer 55 is the same as FIG. 16 of the first embodiment.

The blend processing unit 207 transmits a notification of the end of alpha blending to the output control unit 111, and proceeds to step S31. Otherwise, step S30 is the same as step S18 of the first embodiment.

In step S31 , the output control unit 111 receives an alpha blend end notification from the blend processing unit 207 . Otherwise, step S31 is the same as step S19 of the first embodiment.

Even after executing step S31, the process returns to step S21, and the above process is repeated until there is a trigger to end the process, such as turning off the power or performing an end operation. Although the above processing is repeated, it may be performed only once.

As described above, in the drawing processing system 2 of the second embodiment, the non-applicable drawing target drawing unit 203 stores the drawing target determined as the non-applicable drawing target by the application determining unit 202 in the drawing destination buffer storage unit 103. The calculation unit 204 calculates the area of the drawing target determined as the applicable drawing target by the application determination unit 202, and the determining unit 205 determines the alpha value of the applicable drawing target from the calculated area. Then, the applicable drawing target drawing unit 209 draws the applicable drawing target in a detail buffer which is a buffer different from the drawing destination buffer, and the dot printing unit 210 dots the pixel in the detail buffer corresponding to the position of the applicable drawing target. , the blend processing unit 207 alpha-blends the detail buffer to the drawing destination buffer with the alpha value of the applied drawing target, and the output control unit 111 draws to the output device 5 in the drawing destination buffer. Since the scene is controlled to be output, even if the drawing target is not positioned at the center of the pixel, the drawing target is drawn and the drawing target can be displayed on the display screen.

In the second embodiment, the drawing processing system 2 receives only drawing information input by the input device 6. It is determined from the information whether the drawing target is an applicable drawing target or an unapplied drawing target. With this determination, there is no need for the user or the like to input the tag information to the input device 6, and the drawing processing system 2 automatically determines whether the drawing target is an applicable drawing target or an unapplied drawing target. load can be reduced.

Note that in step S23 of the second embodiment, for example, the application determination unit 202 calculates the area s of the object to be drawn and determines whether or not the area s is less than the threshold value X that is determined and stored in advance. , the threshold value may be changed for each drawing target according to the luminance value, importance, or the like of each drawing target. For example, if the brightness value of the drawing target is lower than the threshold Y, the brightness is low and the threshold X is decreased, and if the brightness value of the drawing target is higher than the threshold Y, the brightness is high and the threshold X is increased. By changing the threshold value X, a drawing target with low luminance is not applicable drawing target even if its area is smaller, so the probability of being determined as an unapplied drawing target increases, and the drawing processing load is reduced. can be done. On the other hand, a drawing target with a high brightness is not treated as an inapplicable drawing target unless it has a larger area, so the probability of being determined as an applicable drawing target increases and it becomes more difficult to erase. Similarly, for example, when an object to be drawn is assigned a degree of importance in advance, if the degree of importance of the object to be drawn is lower than the threshold value Z, the degree of importance is considered to be low, and the threshold value X is reduced. If it is higher than Z, the threshold X is increased as the importance is high. By changing the threshold X, a drawing target with a low degree of importance will not be an applicable drawing target even if it has a smaller area, so the probability of being determined as an unapplied drawing target increases, and the drawing processing load can be reduced. be able to. On the other hand, a drawing target with a high degree of importance is not treated as an unapplied drawing target unless it has a larger area, so the probability of being determined as an applicable drawing target increases, making it more difficult to erase.

In the second embodiment, the drawing processing system 2 includes an accumulation storage unit 208, and the end determination unit 206 stores details in the accumulation storage unit 208 when there are still drawing objects to be drawn in the drawing destination buffer. The drawing processing unit 200 stores the drawing-processed detail buffer stored in the unit 109 so that a new detail buffer can be created in the detail buffer storage unit 109. Then, the drawing processing device 200 performs drawing processing on a drawing target that has not been subjected to drawing processing. I was trying to However, the drawing processing system 2 does not include the accumulation storage unit 208, and the drawing processing device 200 performs the drawing processing so as to overwrite and save the detail buffer stored in the detail buffer storage unit 109, which has undergone the drawing processing. A drawing target that is not drawn may be drawn.

Embodiment 3.
In the first embodiment, in the rendering processing system 1, the creation unit 102 creates one detail buffer having the same resolution as the rendering destination buffer in the detail buffer storage unit 109, and the applicable rendering target rendering unit 108 or the dot printing unit 112 stores the detail buffer. All applicable drawing objects have been drawn in the buffer. In the third embodiment, as shown in FIGS. 20 to 31, the allocation creating unit 302 creates a detailed buffer corresponding to the range of each applicable drawing object in the detailed buffer storage unit 303, The unit 112 draws the applicable drawing target in the detail buffer corresponding to the range of the applicable drawing target.

With this drawing, if the proportion of the range that is not used for drawing of the applicable drawing target is high, it is only necessary to create a detail buffer corresponding to the range of the applicable drawing target. The amount used can be reduced. Other than that, it is the same as the first embodiment. In the following description, the configurations and operations described in Embodiment 1 are denoted by the same reference numerals, and duplicate descriptions are omitted.

In the third embodiment, as in the first embodiment, as an example, the present disclosure is applied to the case where the drawing information, which is the information for drawing the entire scene, includes a drawing target that is not positioned at the center of the pixel. A case of application will be described below.

FIG. 20 is a block diagram of the drawing processing system 3 including the drawing processing device 300 according to the third embodiment. The drawing processing system 3 uses an input device 4 for inputting tag information indicating whether or not to apply detailed drawing processing to each drawing target included in the drawing information and drawing information, and the drawing information and the tag information, A drawing processing device 300 for drawing drawing information and an output device 5 for outputting a scene processed by the drawing processing device 300 are provided.

In the third embodiment, instead of the creation unit 102, the detailed buffer storage unit 109, the applied drawing target drawing unit 108, the dot printing unit 112, and the blend processing unit 110 of FIG. , a detailed buffer storage unit 303, an applicable drawing target drawing unit 304, a dot printing unit 305, a blend processing unit 306, and an allocation creating unit 302 are added as components of the functional block diagram.

The drawing processing device 300 includes an acquisition unit 101 that acquires drawing information including a drawing target and tag information from the input device 4, a creation unit 301 that creates a drawing destination buffer, and a detailed drawing process for the drawing target using the tag information. determines whether the drawing target is an inapplicable drawing target that is drawn in the drawing destination buffer or an applicable drawing target that is drawn in the detail buffer, which is a buffer different from the drawing destination buffer. An application determining unit 106, an unapplied drawing target rendering unit 107 that draws an unapplied drawing target tagged as not applying detailed drawing processing to a drawing destination buffer, and an applicable drawing target tagged as applying detailed drawing processing. , a calculation unit 104 for calculating the area of the application drawing target tagged as applying the detail drawing process, and the alpha value of the application drawing target from the calculated area an applicable drawing target drawing unit 304 for drawing the applicable drawing target in the detail buffer and acquiring the number of drawn pixels; Identifies the applied drawing target that was not drawn in the previous step and has disappeared, points the pixel in the detail buffer corresponding to the position of the lost drawing target, and puts the lost drawing target into the detail buffer. By alpha-blending the RGB values of the applicable drawing objects including the erasure applying drawing objects with the alpha values of the applying drawing objects including the erasing applying drawing objects in correspondence with the pixels painted in the dot printing part 305 to be drawn and the detail buffer. , a blend processing unit 306 for drawing applied drawing objects including lost applied drawing objects in a drawing destination buffer, an output control unit 111 for controlling output of the scene drawn in the drawing destination buffer to the output device 5, and a drawing destination buffer. and a detailed buffer storage unit 303 for storing detailed buffers. The non-applicable drawing target drawing portion 107 corresponds to the first drawing target drawing portion, and the applicable drawing target drawing portion 304 corresponds to the second drawing target drawing portion.

Next, the hardware configuration of the rendering processing system 3 according to Embodiment 3 will be described. A hardware configuration diagram of the drawing processing system 3 is the same as that of FIG. 2 of the first embodiment.

However, the hardware configuration of the creation unit 301 is the same as that of the creation unit 102. The hardware configuration of the detail buffer storage unit 303 is the same as that of the detail buffer storage unit 109 . The hardware configuration of the applicable rendering target rendering unit 304 is the same as that of the applicable rendering target rendering unit 108 . The hardware configuration of the dotting section 305 is the same as that of the dotting section 112 . The hardware configuration of the blend processing unit 306 is the same as that of the blend processing unit 110 . The allocation creation unit 302 is implemented by a program stored in the graphic memory 45, and implemented by reading and executing the program loaded into the graphic memory 45 by the GPU 44. FIG. Note that the graphic memory 45 may implement the functions of the allocation creation unit 302 and the functions of other units with separate memories.

Next, the operations of the drawing processing system 3 and the drawing processing device 300 will be described.

A flowchart showing the operation of the drawing processing system 3 according to the third embodiment of the present disclosure is the same as that of FIG. 3 of the first embodiment.

FIG. 21 is a flowchart showing the operation of the rendering processing device 300 according to Embodiment 3 of the present disclosure. The operation of the rendering processing device 300 will be described below with reference to FIG.

In step S41, the acquisition unit 101 transmits the drawing information and the tag information to the creation unit 301, and proceeds to step S42. Otherwise, step S41 is the same as step S11 of the first embodiment.

In step S42, the creation unit 301 creates only the drawing destination buffer and does not create the detail buffer. The creation unit 301 transmits the drawing information and the tag information to the application determination unit 106, and proceeds to step S43. Otherwise, step S42 is the same as step S12 of the first embodiment.

In step S43 , the application determination unit 106 receives drawing information and tag information from the creation unit 301 . The non-applicable drawing target drawing unit 107 transmits a notification of completion of drawing to the drawing destination buffer to the application processing unit 106 and the blend processing unit 306, and proceeds to step S44. Otherwise, step S43 is the same as step S13 of the first embodiment.

In step S44, when the application determining unit 106 receives the notification from the non-applicable drawing target drawing unit 107 that the drawing to the drawing destination buffer has ended, the drawing information and the tag information of the drawing target that is the applicable drawing target are assigned and created. 302.

In the third embodiment, the application determining unit 106 adds the drawing information, the tag information of the polygon model 51 tagged as the applicable drawing target, and the tag as the applicable drawing target to the drawing information of FIG. The tag information of the polygon model 52 that has been tagged and the tag information of the polygon model 53 that has been tagged as an applicable drawing target are transmitted to the assignment creation unit 302 .

The assignment creation unit 302 receives the drawing information and the tag information of the drawing target that is the application drawing target from the application determination unit 106, and creates a detailed buffer corresponding to each application drawing target in the detail buffer storage unit 303. Each corresponding apply draw target will be drawn in each detail buffer. Note that the detail buffer has the same resolution as the drawing destination buffer. Further, the allocation creation unit 302 creates position information indicating which position in the rendering destination buffer each detail buffer corresponds to, and stores the position information in each detail buffer.

In the third embodiment, the assignment creation unit 302 receives the drawing information from the application determination unit 106, the tag information of the polygon model 51 tagged as the applicable drawing target, and the polygon model 51 tagged as the applicable drawing target. It receives the tag information of the model 52 and the tag information of the polygon model 53 tagged as the applicable drawing object. The allocation creating unit 302 creates a detailed buffer 64 corresponding to the polygon model 51 in the detailed buffer storage unit 303 . Also, the allocation creating unit 302 creates a detailed buffer 65 corresponding to the polygon model 52 in the detailed buffer storage unit 303 . Furthermore, the assignment creating unit 302 creates a detailed buffer 66 corresponding to the polygon model 53 in the detailed buffer storage unit 303 . The polygon model 51 is drawn in the detail buffer 64, the polygon model 52 in the detail buffer 65, and the polygon model 53 in the detail buffer 66, respectively. Note that the detail buffers 64 to 66 have the same resolution as the drawing destination buffer 55 .

FIG. 22 is a diagram showing the comparative relationship between the detail buffers 64 to 66 corresponding to the polygon models 51 to 53 to be rendered in the third embodiment and the detail buffer 56 in the first embodiment. In the third embodiment, it is assumed that the detail buffers 64 to 66 have the same resolution as the drawing destination buffer 55 as in the first embodiment. In other words, it is assumed that the detail buffer 56 of the first embodiment and the detail buffers 64 to 66 of the third embodiment have the same resolution.

Here, the detail buffer 56 of Embodiment 1 is 8 pixels long by 8 pixels wide, for a total of 64 pixels. On the other hand, the detail buffer 64 of the third embodiment has a total of 9 pixels, 3 pixels long and 3 pixels wide. The detail buffer 65 is 2 pixels high by 3 pixels wide, for a total of 6 pixels. The detail buffer 66 is 3 pixels high by 3 pixels wide, for a total of 36 pixels. In the third embodiment, since no detail buffer is created outside the range of the detail buffers 64 to 66, the size of the detail buffer to be created is smaller than in the first embodiment, and the amount of memory used can be reduced.

FIG. 23 shows a detailed buffer 64 corresponding to the polygon model 51 to be applied drawing in the third embodiment, another detailed buffer 65 corresponding to the polygon model 52 to be applied drawing, and another polygon model to be applied drawing. 53 shows yet another detail buffer 66 corresponding to 53; FIG.

Further, the assignment creation unit 302 includes position information 67 indicating to which position in the drawing destination buffer 55 the detail buffer 64 corresponds and information indicating to which position in the drawing destination buffer 55 the detail buffer 65 corresponds. Position information 68, which is information, and position information 69, which is information indicating which position in the drawing destination buffer 55 the detail buffer 66 corresponds to, are created. The allocation creating unit 302 stores the position information 67 in the detail buffer 64 , the position information 68 in the detail buffer 65 , and the position information 69 in the detail buffer 66 .

FIG. 24 is a diagram schematically showing position information 67, which is information indicating to which position in the drawing destination buffer 55 the detail buffer 64 corresponds. A dotted line range 64 on the drawing destination buffer 55 corresponds to the position of the detail buffer 64 .

FIG. 25 is a diagram schematically showing position information 68, which is information indicating to which position in the drawing destination buffer 55 another detail buffer 65 corresponds. A dotted line range 65 on the drawing destination buffer 55 corresponds to the position of the detail buffer 65 .

FIG. 26 is a diagram schematically showing position information 69, which is information indicating to which position in the rendering destination buffer 55 another detail buffer 66 corresponds. A dotted line range 66 on the drawing destination buffer 55 corresponds to the position of the detail buffer 66 .

In the third embodiment, the position information is divided for each polygon model to be applied drawing. The detailed buffer storage unit 303 may store them collectively.

FIG. 27 shows information about which position in the drawing destination buffer 55 the detail buffer 64 corresponds to, information about which position in the drawing destination buffer 55 another detail buffer 65 corresponds to, and further details. FIG. 10 is a diagram schematically showing position information that summarizes the information as to which position in the drawing destination buffer 55 the buffer 66 corresponds to. A dotted line range 64 on the drawing destination buffer 55 corresponds to the position of the detail buffer 64 , a dotted line range 65 on the drawing destination buffer 55 corresponds to the position of the detail buffer 65 , and a dotted line range 66 on the drawing destination buffer 55 corresponds to the position of the detail buffer 65 . corresponds to the location of the detail buffer 66 .

The range of the detail buffer 64 corresponding to the polygon model 51 is the range in which the entire polygon model 51 can be drawn. The range of the detail buffer 65 corresponding to the polygon model 52 is the range in which the entire polygon model 52 can be drawn. The range of the detail buffer 66 corresponding to the polygon model 53 is the range in which the entire polygon model 53 can be drawn. The range of the detail buffer corresponding to the applicable drawing target may be determined in advance, may be determined by the user upon receipt of input from the user, or may be determined according to the area of the drawing target. , the range is not limited.

For example, when determining according to the area of the drawing target, the allocation creation unit 302 may calculate the area of each drawing target as in the calculation unit 104 of the first embodiment, or use a bounding box or the like. By approximation, the area of each object to be drawn may be roughly estimated. In the case of a three-dimensional object to be drawn, the area of the object to be drawn is calculated after the object to be drawn is projected and transformed into two dimensions. The method of estimating the area of each object to be drawn using a bounding box or the like is the same as in FIG. 9 of the first embodiment. Note that the allocation creation unit 302 may create the detail buffer with a wider range than the applicable drawing target.

Returning to FIG. 21, the assignment creation unit 302 transmits the drawing information and the tag information of the drawing target, which is the applicable drawing target, to the calculation unit 104, and proceeds to step S45. In the third embodiment, the assignment creation unit 302 generates drawing information, tag information of the polygon model 51 tagged as the applicable drawing target, and tag information of the polygon model 52 tagged as the applicable drawing target. , and the tag information of the polygon model 53 tagged as being the applicable drawing target, are transmitted to the calculation unit 104 .

In step S45, the calculation unit 104 receives the drawing information and the tag information of the drawing target, which is the applicable drawing target, from the allocation creation unit 302. In the third embodiment, the calculation unit 104 receives the drawing information from the assignment creation unit 302, the tag information of the polygon model 51 tagged as the applicable drawing target, and the polygon model 51 tagged as the applicable drawing target. 52 tag information and the tag information of the polygon model 53 tagged as being the applicable rendering target. Otherwise, step S45 is the same as step S14 of the first embodiment.

In step S46, the determining unit 105 transmits the drawing information, the tag information of the drawing target that is the applicable drawing target, and the alpha value information of the applicable drawing target to the applicable drawing target drawing unit 304, and proceeds to step S47. Otherwise, step S46 is the same as step S15 of the first embodiment.

In step S47 , the applicable drawing target drawing unit 304 receives the drawing information, the tag information of the drawing target that is the applicable drawing target, and the alpha value information of the applicable drawing target from the determining unit 105 . Draw each applicable drawable into each detail buffer. Alpha value information is also stored in each detail buffer at this time. Also, the applied drawing target drawing unit 304 acquires the number of pixels drawn in the detailed buffer each time the applied drawing target is drawn in the detailed buffer.

In the third embodiment, as in the first embodiment, the applicable drawing target drawing unit 304 receives the drawing information from the determination unit 105, the tag information of the polygon model 51 tagged as the applicable drawing target, and the applicable drawing target. The tag information of the polygon model 52 tagged as being the object, the tag information of the polygon model 53 tagged as being the application drawing object, and the alpha value information that the alpha value of the polygon model 51 is 0.4. Then, alpha value information that the alpha value of the polygon model 52 is 0.7 and alpha value information that the alpha value of the polygon model 53 is 1.0 are received.

The applicable drawing target drawing unit 304 draws the polygon model 51 in the detail buffer 64 of the detail buffer storage unit 303 . Also, the applicable drawing target drawing unit 304 draws the polygon model 52 in the detail buffer 65 of the detail buffer storage unit 303 . Further, the applicable drawing target drawing unit 304 draws the polygon model 53 in the detail buffer 66 of the detail buffer storage unit 303 .

FIG. 28 shows a drawing result 70 obtained by drawing a polygon model 51 to be applied drawing in the detail buffer 64, a drawing result 71 obtained by drawing another polygon model 53 to be applied drawing in another detail buffer 66, and a plurality of drawing targets. It is a diagram in which polygon models 51 to 53 are superimposed.

As in the first embodiment, the polygon model 51 includes the center of one pixel in the detail buffer 64, as shown in FIG. Then, the polygon model 51 is drawn. The drawing result of the polygon model 51 is the drawing result 70 of one pixel in FIG. Since the polygon model 52 does not contain the center of any pixel in the detail buffer 65, it is not rendered and disappears. Therefore, nothing is drawn in the detail buffer 65 . Since the polygon model 53 includes the center of one pixel in the detail buffer 66, the polygon model 53 is drawn by filling the pixel with the RGB values associated with the polygon model 53 included in the drawing information. The drawing result of the polygon model 53 is the drawing result 71 of one pixel in FIG. The drawing result 70 of the third embodiment is the same as the drawing result 58 of FIG. 12 of the first embodiment. The drawing result 71 of the third embodiment is the same as the drawing result 59 of FIG. 12 of the first embodiment.

FIG. 29 is a diagram showing a drawing result 70 obtained by drawing the polygon model 51 to be applied drawing in the detail buffer 64 and a drawing result 71 obtained by drawing another polygon model 53 to be applied drawing in another detail buffer 66 . . FIG. 29 eliminates the superimposed display of the multiple polygon models 51-53 of FIG. 28 and shows only the actual drawing results 70-71. 28, the drawing result 70 of the third embodiment is the same as the drawing result 58 of FIG. 13 of the first embodiment. The drawing result 71 of the third embodiment is the same as the drawing result 59 of FIG. 13 of the first embodiment.

From the alpha value information of the polygon model 51, the applicable drawing target drawing unit 304 stores the alpha value that the alpha value of the polygon model 51 is 0.4 in the pixel of the drawing result 70. Further, from the alpha value information of the polygon model 53 , the applicable drawing target drawing unit 304 stores an alpha value that the alpha value of the polygon model 53 is 1.0 in the pixel of the drawing result 71 . The values in the pixels of FIG. 29 represent the stored alpha values.

The applicable drawing target drawing unit 304 acquires the number of pixels in which the detailed buffer 64 is actually filled with the polygon model 51 after performing the process of drawing the polygon model 51 in the detail buffer 64 . In the case of the polygon model 51, as can be seen from FIG. 29, the applied drawing target drawing unit 304 acquires information that the number of pixels actually drawn in the detail buffer 64 is 1 pixel. After executing the process of drawing the polygon model 52 in the detailed buffer 65 , the applied drawing target drawing unit 304 acquires the number of pixels in which the detailed buffer 65 is actually filled with the polygon model 52 . In the case of the polygon model 52, as can be seen from FIG. 29, the detail buffer 65 is not filled with even one pixel by the polygon model 52, so the applicable drawing target drawing unit 304 acquires the information that the number of pixels is 0 pixel. After executing the process of drawing the polygon model 53 in the detailed buffer 66 , the applied drawing target drawing unit 304 acquires the number of pixels in which the detailed buffer 66 is actually filled with the polygon model 53 . In the case of the polygon model 53, as can be seen from FIG. 29, the applied drawing target drawing unit 304 acquires information that the number of pixels actually drawn in the detail buffer 66 is 1 pixel. Hereinafter, information indicating the number of pixels drawn in the detail buffer by the applicable drawing target acquired by the applicable drawing target drawing unit 304 will be referred to as pixel number information, as in the first embodiment.

Returning to FIG. 21, the applied drawing target drawing unit 304 transmits the drawing information, the tag information of the drawing target that is the applicable drawing target, the alpha value information, and the number of pixels information to the dot printing unit 305, and the process proceeds to step S48. move on.

In step S48, the dot printing unit 305 receives the drawing information, the tag information of the drawing target that is the applied drawing target, the alpha value information, and the number of pixels information from the applied drawing target drawing unit 304. The dot printing unit 305 identifies, from the pixel number information, the erasure applied drawing target, which is the applied drawing object that has disappeared without being drawn by the applied drawing object drawing unit 304, and stores the erase applied drawing object in the detail buffer corresponding to the position of the erasure applied drawing object. Dot the pixel and draw the erasure-applied draw target to the detail buffer. At this time, the alpha value of the alpha value information is also stored in the detail buffer.

In the third embodiment, as in the first embodiment, the dot printing unit 305 receives the drawing information from the applied drawing target drawing unit 304, the tag information of the polygon model 51 tagged as the applicable drawing target, and the applied drawing The tag information of the polygon model 52 tagged as being the object, the tag information of the polygon model 53 tagged as being the application drawing object, and the alpha value information that the alpha value of the polygon model 51 is 0.4. , alpha value information that the alpha value of the polygon model 52 is 0.7, alpha value information that the alpha value of the polygon model 53 is 1.0, and pixels drawn in the detail buffer 56 by the polygon model 51. Pixel number information that the number is 1 pixel, pixel number information that the number of pixels drawn in the detail buffer 56 by the polygon model 52 is 0 pixels, and pixel number information that the number of pixels drawn in the detail buffer 56 by the polygon model 53 is and pixel number information that it is one pixel.

As in the first embodiment, the dot printing unit 305 uses the pixel count information to convert the applied drawing target having the number of pixels of 0 to the lost drawing target that has disappeared without being drawn by the applied drawing target drawing unit 304. Identifies as a drawing target. Specifically, since the pixel count information of the polygon model 52 is 0 pixel, the dot printing unit 305 identifies the polygon model 52 as the object to be drawn with erasure applied.

The dotting unit 305 dots the pixels in the detail buffer 65 corresponding to the position of the polygon model 52 to which erasure is applied, and renders the erasure-applied drawing target in the detail buffer. The dotting unit 305 dots the pixels in the detail buffer 65 corresponding to the positions of the vertices of the polygon model 52 , and renders the polygon model 52 to be rendered with erasure applied in the detail buffer 65 . In addition, in the case of a drawing target such as a circle or an ellipse that does not have vertices, the dotting unit 305 approximates it to a polygon and places dots at the positions of the vertices of the polygon.

FIG. 30 shows a drawing result 70 obtained by drawing a polygon model 51 to be applied drawing in the detail buffer 64, a drawing result 71 obtained by drawing another polygon model 53 to be applied drawing in the detail buffer 66, and another polygon to be applied drawing. It is a diagram in which a drawing result 72 obtained by drawing a model 52 in a detail buffer 65 and a plurality of polygon models 51 to 53 are superimposed. As in the first embodiment, the polygon model 52 has three vertices. Then, 3 pixels of the detail buffer 65 corresponding to the positions of the 3 vertices of the polygon model 52 are filled with RGB values attached to the polygon model 52 included in the drawing information, and the polygon model 52 is drawn. The drawing result of the polygon model 52 is the drawing result 72 of 3 pixels in FIG.

FIG. 31 shows a drawing result 70 obtained by drawing a polygon model 51 to be applied drawing in the detail buffer 64, a drawing result 71 obtained by drawing another polygon model 53 to be applied drawing in the detail buffer 66, and another polygon to be applied drawing. FIG. 10 is a diagram showing a drawing result 72 of the model 52 drawn in the detail buffer 65; FIG. 31 eliminates the superimposed display of the multiple polygon models 51-53 of FIG. 30 and shows only the actual drawing results 70-72.

From the alpha value information of the polygon model 52, the dot printing unit 305 stores an alpha value that the alpha value of the polygon model 52 is 0.7 in each pixel forming the drawing result 72. The value in each pixel in FIG. 31 represents the stored alpha value.

Returning to FIG. 21, the dot printing unit 305 sends a notification of completion of drawing to the detail buffer to the blend processing unit 306, and proceeds to step S49. If there is no drawing target to be erased, the dot printing unit 305 does nothing because the drawing target to be applied has already been drawn in the detail buffer, and notifies the blend processing unit 306 of the end of drawing to the detail buffer. It transmits, and it progresses to step S49.

In step S49 , the blend processing unit 306 receives a notification of completion of drawing to the drawing destination buffer from the unapplied drawing target drawing unit 107 and a notification of completion of drawing to the detail buffer from the dot printing unit 305 . Using the position information of each detail buffer stored in the buffer 303, each pixel of each detail buffer stored in the detail buffer 303 is stored in the rendering destination buffer stored in the rendering destination buffer storage unit 103. Then, alpha blend the RGB values with the alpha value and draw the applied drawing target in the drawing destination buffer.

In the third embodiment, the blend processing unit 306 uses the position information 67 stored in the detail buffer 64 to add alpha to the rendering destination buffer 55 of FIG. 8 for each pixel of the detail buffer 64 of FIG. A polygon model 51 to be applied drawing is drawn in the drawing destination buffer 55 by alpha blending the RGB values with the value. Specifically, the blend processing unit 306 draws the polygon model 51 in FIG. 31 at the position corresponding to the position information 67 in the drawing destination buffer 55 in FIG. For one pixel of the result 70, alpha blend the RGB values of the polygon model 51 with an alpha value of 0.4.

Similarly, using the position information 68 stored in the detail buffer 65, the blend processing unit 306 renders the rendering destination buffer 55 of FIG. The value is alpha-blended and the polygon model 52 to be applied drawing is drawn in the drawing destination buffer 55 . Specifically, the blend processing unit 306 draws the polygon model 52 of FIG. 31 at the position corresponding to the position information 68 in the drawing destination buffer 55 of FIG. For each pixel of the result 72, alpha blend the RGB values of the polygonal model 52 with the alpha value of 0.7 for each pixel.

Using the position information 69 stored in the detail buffer 66, the blend processing unit 306 converts the RGB values of the detail buffer 66 of FIG. 31 to the rendering destination buffer 55 of FIG. A polygon model 53 to be blended and applied is drawn in a drawing destination buffer 55 . Specifically, the blend processing unit 306 draws the polygon model 53 of FIG. 31 at the position corresponding to the position information 69 in the drawing destination buffer 55 of FIG. For one pixel of the result 71, alpha blend the RGB values of the polygon model 53 with an alpha value of 1.0.

A drawing showing the result of drawing all the polygon models in the drawing destination buffer 55 is similar to FIG.

The blend processing unit 306 sends a notification of the end of alpha blending to the output control unit 111, and proceeds to step S50.

In step S50 , the output control unit 111 receives an alpha blend end notification from the blend processing unit 306 . Otherwise, step S50 is the same as step S19 of the first embodiment.

Even after executing step S50, the process returns to step S41, and the above process is repeated until there is a trigger to end the process, such as turning off the power or performing an end operation. Although the above processing is repeated, it may be performed only once.

As described above, in the rendering processing system 3 of the third embodiment, the rendering target determined as an unapplied rendering target by the application determination unit 106 is stored in the rendering destination buffer storage unit 103 by the unapplied rendering target rendering unit 107. The calculation unit 104 calculates the area of the drawing target determined by the application determining unit 106 as the applicable drawing target, and the determining unit 105 determines the alpha value of the applicable drawing target from the calculated area. Then, the applicable drawing target drawing unit 304 draws the applicable drawing target in a detail buffer which is a buffer different from the drawing destination buffer, and the dot printing unit 305 dots the pixels in the detail buffer corresponding to the position of the applicable drawing target. , the blend processing unit 306 alpha-blends the detail buffer to the drawing destination buffer with the alpha value of the applied drawing target, and the output control unit 111 draws to the output device 5 in the drawing destination buffer. Since the scene is controlled to be output, even if the drawing target is not positioned at the center of the pixel, the drawing target is drawn and the drawing target can be displayed on the display screen.

Further, in the third embodiment, the drawing processing system 3 has the allocation creating unit 302 create a detailed buffer corresponding to the range of each applicable drawing target in the detailed buffer storage unit 303, and the applicable drawing target drawing unit 304 and the dot printing unit 305 draws the applicable drawing target in the detail buffer corresponding to the range of the applicable drawing target. As a result of this drawing, the drawing processing system 3 only needs to create a detailed buffer corresponding to the range of the applicable drawing target when the ratio of the range not used for drawing of the applicable drawing target is high, so the buffer is created wastefully. is not required and memory usage can be reduced.

In the first to third embodiments, the drawing processing systems 1 to 3 need to draw the entire scene in the conventional drawing processing device when drawing targets with large drawing size differences coexist in the same scene. In order to draw a small drawing target of less than one pixel so as not to disappear from the display screen, it is necessary to draw the drawing target at a correspondingly higher magnification or increase the number of pixel divisions. In other words, in the conventional drawing processing device, when drawing objects with a large difference in drawing size coexist in a scene, if the whole scene is drawn with the magnification or the number of divisions corresponding to the smallest drawing object, the other drawing objects will also be drawn. Since the image is drawn with a high resolution or with a large number of divisions, the drawing processing load increases. However, since the drawing processing systems 1 to 3 do not need to draw at high resolution, the drawing processing load can be reduced by drawing so as not to erase the drawing target from the display screen.

In the drawing processing systems 1 to 3 of the first to third embodiments, the calculation unit calculates the area of the applicable drawing target, and the determination unit calculates the alpha value from the calculated area. can be determined according to the size of the . Moreover, since the drawing processing systems 1 to 3 perform alpha blending, the background color does not disappear.

In the first to third embodiments, the drawing processing systems 1 to 3 have the applicable drawing target drawing unit draws the applicable drawing target in the detail buffer, acquires the number of drawn pixels, and the dot printing unit performs the applied drawing From the number of drawn pixels obtained for each target, identify the erasure-applied drawing targets that were not drawn in the detail buffer, point the pixel in the detail buffer corresponding to the position of the erasure-applied drawing target, and remove the erasure-applied drawing target. was drawn in the detail buffer. However, the rendering processing systems 1 to 3 eliminate the applicable rendering object rendering portion, and the dot dot unit dots the pixels in the detail buffer corresponding to the position of the applicable rendering object for all the applicable rendering objects. Render targets may be rendered into the detail buffer. However, in order to eliminate the drawing part of the applicable drawing object and to draw all the applicable drawing objects in the detail buffer, if the applicable drawing object has a complicated shape, the number of points to be struck increases. The load of the drawing process can be reduced by providing a drawing target drawing section, where the dot dot section dots the pixels in the detail buffer corresponding to the position of the drawing target with erasure applied, and draws the drawing target with erasure applied in the detail buffer. . Further, the drawing processing systems 1 to 3 can draw more accurately when drawing an applicable drawing target having a certain area in the applicable drawing target drawing section.

In the first to third embodiments, the drawing processing systems 1 to 3 dot the pixels in the detail buffer corresponding to the positions of the vertices of the drawing object with erasure applied. You may also dot the pixel in the detail buffer corresponding to . However, when the dot plotting part plots a dot in the pixel in the detail buffer corresponding to the position of the center of gravity of the object to be rendered with erasure, the center of gravity must be calculated. Rendering processing systems 1 to 3 prefer that the dot dot part plots a pixel in the detail buffer corresponding to the position of the vertex of the object to be rendered with erasure, and the pixel in the detail buffer corresponding to the position of the center of gravity of the object to be rendered with erasure. Rendering processing load can be reduced more than when dots are placed.

In the first to third embodiments, the drawing processing systems 1 to 3 draw the non-applicable drawing target and then draw the applicable drawing target in order. Alternatively, the order of drawing may be reversed, or the drawing of non-applicable drawing targets and the drawing of applicable drawing targets may be processed in random order. When there are a plurality of non-applicable drawing targets, the drawing processing systems 1 to 3 may draw the plurality of non-applicable drawing targets in order, or may draw the non-applicable drawing targets in parallel at the same time. Similarly, when there are a plurality of applicable drawing targets, the drawing processing systems 1 to 3 may draw the plurality of applicable drawing targets in order, or may draw the applicable drawing targets in parallel at the same time.

In Embodiments 1 to 3, the drawing processing systems 1 to 3 are provided with the detail buffer storage units, but processing may be performed by dividing the storage units into a plurality of units. In the drawing processing systems 1 to 3, the drawing processing devices 100 to 300 have the drawing destination buffer storage unit and the detail buffer storage unit. may be provided. The drawing processing devices 100 to 300 may exchange information with the storage unit through communication.

In the first embodiment, in the rendering processing system 1, the creation unit 102 created the rendering destination buffer and the detail buffer in step S12, but the rendering destination buffer and the detail buffer may be created in advance. Further, after the creation unit 102 creates the drawing destination buffer in step S12, the creation unit 102 may create the detail buffer between steps S13 to S16. The drawing destination buffer can be created at any time before drawing is done in the drawing destination buffer. Also, the detail buffer can be created any time before drawing is done in the detail buffer. Similarly, in the second and third embodiments, the drawing destination buffer may be created any time before drawing is performed in the drawing destination buffer. Also, the detail buffer can be created any time before drawing is done in the detail buffer.

In Embodiments 1 to 3, the drawing processing systems 1 to 3 used the bounding box 80 when calculating the approximate value of the area of each drawing target. , or a shape such as a triangular pyramid that has fewer vertices than the object to be drawn and whose area is easier to calculate than the area of the object to be drawn. A combination of these may also be used. The bounding box or the like can be used not only for approximating the area of a three-dimensional object to be drawn, but also for estimating the area of a two-dimensional object to be drawn. In this case, the sphere is replaced with a circle, the rugby ball is replaced with an ellipse, and the triangular prism and triangular pyramid are replaced with easily approximated shapes such as triangles.

In Embodiments 1 to 3, the drawing processing systems 1 to 3 are applied, for example, when the object to be drawn is a polygon model, which is one surface model of three-dimensional graphics. It can also be applied to models, solid models, point models, etc. The drawing processing systems 1 to 3 can also be applied when the drawing target is two-dimensional graphics instead of three-dimensional graphics.

In Embodiments 1 to 3, the drawing processing systems 1 to 3 are applied, for example, when displaying a drawing in RGB colors where the drawing target is represented by RGB values. It can also be applied when displaying

By the way, the drawing processing device, the drawing processing system, the drawing processing method, and the drawing processing program shown in the above-described embodiments are merely examples, and can be configured in combination with other devices as appropriate. It is not limited to the configuration of the embodiment alone.

1 to 3 drawing processing system, 4, 6 input device,
5 output device, 41 bus, 42 CPU,
43 main memory, 44 GPU,
45 graphic memory, 46 input interface,
47 output interface, 51-54 polygon model,
55 draw destination buffer,
56, 64-66, 70-72 detail buffer,
57-63 drawing result, 67-69 position information,
80 bounding box,
81 drawing object, 82 area,
100 to 300 drawing processing device, 101, 201 acquisition unit,
102, 301 creation unit, 103 drawing destination buffer storage unit,
104, 204 calculation unit, 105, 205 determination unit,
106, 202 application determination unit,
107, 203 non-applicable drawing object drawing part,
108, 209, 304 applied drawing object drawing part,
109, 303 detail buffer storage unit,
110, 207, 306 blend processing unit,
111 output control section, 112, 210, 305 dotting section,
206 end determination unit, 208 accumulation storage unit,
302 Assignment creation unit.

Claims

a dot dot part that dots pixels in a buffer corresponding to the position of a drawing target in two or more dimensions and draws the drawing target in the buffer;
and an output control unit that controls to output the scene drawn in the buffer to an output device.
The drawing target is a first drawing target that is drawn in a first buffer that is a drawing destination, and a second drawing target that is drawn in a second buffer that is a buffer different from the first buffer. an application determination unit that determines which one;
a first drawing target drawing unit that draws the drawing target determined as the first drawing target by the application determination unit in the first buffer;
a blend processing unit that alpha-blends the second buffer to the first buffer with an alpha value representing the transparency of the rendering target;
the buffer is the second buffer;
The dot-dotting unit dots pixels in the second buffer corresponding to the position of the second drawing target, and draws the second drawing target in the second buffer;
2. The drawing processing device according to claim 1, wherein the output control unit controls to output the alpha-blended scene drawn in the first buffer to the output device.
a calculation unit that calculates the area of the drawing target determined to be the second drawing target by the application determination unit;
3. The drawing processing apparatus according to claim 2, further comprising a determination unit that determines an alpha value representing the transparency of the second drawing target from the area calculated by the calculation unit.
a second drawing target drawing unit that draws the second drawing target in the second buffer and acquires the number of pixels filled when the second drawing target is drawn in the second buffer; ,
wherein the dot-printing unit dots a position in the second buffer corresponding to the second drawing target having the number of pixels of 0, and draws the second drawing target in the second buffer; 4. The drawing processing device according to any one of items 2 and 3.
5. Any one of claims 2 to 4, wherein said dot plotting unit plots a dot on a pixel in said second buffer corresponding to the position of the vertex of said second object to be rendered or the position of the center of gravity of said second object to be rendered. 3. The drawing processing device according to the paragraph.
4. The area according to claim 3, wherein the calculation unit calculates the area of the second drawing target by approximating a shape having a smaller number of vertices than the second drawing target approximated to the second drawing target. Drawing processor.
7. The drawing processing device according to claim 2, further comprising an assignment creating unit that creates the second buffer for each of the second drawing targets according to the area of each of the second drawing targets. .
The allocation creation unit sets the area approximated by a shape having a smaller number of vertices than the second drawing target approximated to the second drawing target to the first buffer as the area of the second drawing target. 8. The drawing processing device according to claim 7, wherein the size of said second buffer is calculated for each said second drawing target.
an acquisition unit that acquires tag information indicating whether the drawing target is the first drawing target or the second drawing target,
9. The application determination unit according to any one of claims 2 to 8, wherein the application determining unit determines whether the rendering target is the first rendering target or the second rendering target using the tag information. A drawing processor as described.
9. Any one of claims 2 to 8, wherein the application determination unit determines whether the drawing target is the first drawing target or the second drawing target using the area of the drawing target. 3. The drawing processing device according to the paragraph.
The application determination unit determines whether the drawing target is the first drawing target or the second drawing target using at least one of the brightness of the drawing target and the importance assigned in advance to the drawing target. 11. The drawing processing apparatus according to claim 10, wherein a threshold value used for determining whether it is any of the above is varied.
an input device that receives an input of a drawing target of two or more dimensions;
a drawing processing device that performs a drawing process of drawing the drawing target in a buffer as a scene;
and an output device that outputs the scene,
The drawing processing device
a dot dot part that dots pixels in the buffer corresponding to the position of the object to be rendered and renders the object to be rendered into the buffer;
and an output control unit that controls to output the scene drawn in the buffer to the output device.
Plotting pixels in a buffer corresponding to the position of a drawing target in two or more dimensions, and drawing the drawing target in the buffer;
and a step of controlling output of the scene drawn in the buffer to an output device.
a process of plotting pixels in a buffer corresponding to the position of a drawing target in two or more dimensions and drawing the drawing target in the buffer;
A drawing processing program for executing a process of controlling output of the scene drawn in the buffer to an output device.