KR20060000732A - Method and system for renewing screen - Google Patents

Abstract

The present invention relates to a screen updating method and a system thereof, and more particularly, a screen for updating a screen by generating two different images, each having a different update cycle, and a different image updating method, and synthesizing the two types of images. An update method and a system thereof are provided.

The screen update method according to the present invention includes a first step of identifying image resource data associated with the first image update event from a predetermined basic recording space when a first image update event occurs; A second step of loading the identified image resource data into a buffer space including a plurality of buffers, wherein the image resource data is cyclically loaded into the buffer on a frame-by-frame basis; Generating a first image at a first frame rate by sequentially rendering the image resource data loaded in the buffer for each buffer; If a second image update event occurs, generating a second image associated with the second image update event at a second frame rate; A fifth step of synthesizing the first image and the second image to generate a whole image; And a sixth step of displaying the entire image on a predetermined display means, wherein the first frame rate is less than the second frame rate.

MMORPG, 3D, 3D, image, buffer, refresh, refresh rate, compositing.

Description

Renewal Method and System {METHOD AND SYSTEM FOR RENEWING SCREEN}

1 is a diagram illustrating a network connection of a system for performing a screen update method according to the present invention.

2 is a flowchart illustrating an example of a screen update method according to an embodiment of the present invention.

3 is a diagram illustrating an example of a first image according to an embodiment of the present invention.

4 is a diagram illustrating an example of a second image according to an embodiment of the present invention.

5 is a block diagram illustrating a screen update system according to an embodiment of the present invention.

6 is an internal block diagram of a general purpose computer device that may be employed to perform the screen update method according to the present invention.

<Explanation of symbols for the main parts of the drawings>

500: refresh system

501: default recording space

502: identification means

503: loading means

504: first image generating means

505: second image generating means                 

506: display means

The present invention relates to a screen updating method and a system thereof, and more particularly, a screen for updating a screen by generating two different images, each having a different update cycle, and a different image updating method, and synthesizing the two types of images. An update method and a system thereof are provided.

Recently, the provision of various kinds of network game services based on 3D graphics has gradually expanded beyond 2D graphics based network games. In order to provide a network game service based on 3D graphics, screen updating through real-time rendering is essential.

Real-time rendering is the creation of images in real time from image resource data to update the screen. In general, real-time rendering means updating an image at an update rate of 15 [frame / s] or more, and updating the image at an update rate such that a user viewing the image can feel an interaction. In particular, in a network game service, in order to provide a natural game screen to gamers, there are many cases where a game screen having a fast update rate of about 30 [frame / s] is desired.

However, when rendering a 3D image in real time, especially when rendering a 3D image in real time at a high update rate as in a game screen, the amount of image resource data to be processed every unit time is large, as well as a video. Since the amount of computation that the processor (GPU) must handle also increases significantly, much attention has been paid to a method for maintaining an update rate of about 30 [frame / s].

However, when generating an image constituting a game screen, the process of generating the image can be divided into a number of steps, each of which may be performed in time series, but each step is performed in parallel In some cases.

The steps necessary to create an image consist of steps A, B, and C, and if step A is not completed, step B is not performed, but step C is performed in parallel regardless of step A or B. For example, the step C may be completed in a short time due to not a large amount of calculation, but the step A may not be completed, and thus the image may not be generated. That is, steps A and B determine the update rate of the image.

For example, in a 3D Massively Multi-player Online Role Playing Game (MMORPG) in which a large number of gamers connect through a network to play a game, the process of updating a 3D object such as a movement of a player character is performed as in step A. In this step, the process of displaying the text on the game screen when the gamer enters the chat text in the chat window is not included in the calculation as in step C, and is included in the step that the video processor can process quickly. .

At this time, since the movement process of the player character and the contents of the chat text are displayed on "one image", even if step C for displaying the contents of the chat text is quickly completed, A for displaying the movement of the player character is displayed. The content of the chat text is not updated until the step is processed.

Therefore, if the real-time rendering is not processed normally and the bottleneck of the image resource data occurs or the calculation for the real-time rendering is rapidly increased, the racking occurs due to the delay of the A stage. There is a problem that gamers are provided with unnatural game screens, or even still images.

The present invention has been made to improve the prior art as described above, the two or more images after each of the two or more kinds of images that can be generated in different ways, respectively by a separate process at different update rates, respectively An object of the present invention is to provide a screen updating method and system for synthesizing and updating an entire image.

In addition, the present invention is to separate each process to be processed in order to implement a single full image by each update rate to be processed independently, so that the update rate of the entire image can be prevented from slowing down to the slowest process together. An object of the present invention is to provide a screen updating method and system.

In addition, the present invention is to update the game screen, the portion of the image that is necessary to respond quickly to the request of the gamer, such as displaying the contents of the chat text, or display the position movement of the mouse point is updated at a faster update rate An object of the present invention is to provide a screen updating method and a system which does not affect the updating of such an image part even if a rack occurs in the process of generating a 3D image.

In order to achieve the above object and to solve the above-mentioned problems of the prior art, the screen update method according to the present invention provides an image associated with the first image update event from a predetermined basic recording space when a first image update event occurs. A first step of identifying resource data, a second step of loading the identified image resource data into a buffer space including a plurality of buffers, wherein the image resource data is cyclically loaded into the buffer on a frame-by-frame basis, respectively, A third step of generating a first image at a first frame rate by sequentially rendering the image resource data loaded in the buffer for each buffer; when the second image update event occurs, updating the second image at a second frame rate A fourth step of generating a second image associated with the event; sum the first image and the second image And a fifth step, and a sixth step of displaying the entire image in the predetermined display device, wherein the first frame rate to generate a complete image is characterized in that it is less than the second frame rate.

In addition, according to an aspect of the present invention, the basic recording space for storing the image resource data, when the first image update event occurs, the equation for identifying the image resource data associated with the first image update event from the basic recording space Separate means, loading means for sequentially loading the identified image resource data into each buffer in frame units in a buffer space including a plurality of buffers, and sequentially rendering the image resource data loaded into the buffer for each buffer in a first frame. First image generating means for generating a first image at a rate, second image generating means for generating a second image associated with the second image update processing event at a second frame rate when a second image update event occurs, and Comprising the first image and the second image to generate a whole image And, wherein the first frame rate, and a display means for displaying the entire image in the predetermined display device is characterized in that it is less than the second frame rate.

** Organization of terms used in this specification **

1) First image

In the present specification, the first image is an image generated at a predetermined first frame rate and is an image generated by loading predetermined image resource data and rendering the image resource data. That is, for example, the 3-D image generated through the general real-time rendering.

2) second image

In the present specification, the second image is an image that is generated at a predetermined second frame rate, and means an image that can be generated within a relatively quick time compared to the first image. For example, the second image may include an image for displaying a chat content on a screen according to a user's chat text input, or an image for displaying a mouse point on a screen according to a user's mouse movement.

3) first frame rate and second frame rate

As described above, since the second image may be generated in a relatively quick time than the first image, the second update period is usually shorter than the first update period. For example, the first frame rate and the second frame rate may be determined such that the second image is updated at an update rate of 60 [frame / s] and the first image is updated at an update rate of 30 [frame / s]. .

3) Load sequentially into the buffer

The processor means herein recursively loads image resource data from a basic recording space into a plurality of buffers. For example, when using two buffers, a first buffer and a second buffer, the image resource data is sequentially loaded into each buffer, such as the first buffer (the second buffer (the first buffer), and the "cyclic" In terms of "loading".

4) image resource data

Used to implement data used in rendering processing for screen updating, for example, a player character, a dynamic character of a non-player character (NPC), and a static character constituting a game background such as a mountain and a river. Include all data that is

Hereinafter, a screen update method and a screen update system will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a network connection of a screen update system for performing a screen update method according to the present invention. Hereinafter, a case in which the screen update system updates the game screen will be described as an example. However, the present invention can be applied to all cases in which the screen is updated using real-time rendering as well as the game screen.

The screen update system 100 is an apparatus for updating an image by generating an image associated with the image update event when an image update event for a predetermined game area occurs. The screen update system 100 is an RPG game requiring various image implementations of image resource data according to the position of a player character, in particular, an MMORPG in which a large number of gamers simultaneously play a game online in a broadband game area. It can be implemented in the terminal means 125 for driving a massively multi-player online role playing game. In this embodiment, the screen update system 100 of the present invention is implemented by way of example in an online-based RPG game. However, the present invention may be applied to all image realization fields related to image realization as a display means. It will be apparent to those skilled in the art. In addition, the screen update system 100 may be implemented irrespective of the inside or outside of the terminal means 125. However, in the present embodiment, for the convenience of description, the screen updating system 100 may include a predetermined terminal means 125 held by the gamers 120. FIG. A case of updating an image for a predetermined game area provided inside is described by way of example.

The online game server 110 is connected to the terminal means 125 of the gamers 120 to the communication network 130, and performs a game service server related to the MMORPG, which serves to provide game services to the gamers 120 online. Can mean. The game service in the online game server 110 is a predetermined game progress data or game patch when the gamer 120 accesses the online game server 110 using the terminal means 125 on which a game related program is installed. It may be transmitted to the terminal means 125, and may be provided through the game-related program driven by the transmitted game progress data or game patch. In addition, the online game server 110 grants gamers 120 control of a predetermined player character in such a game environment, and enables the gamers 120 to control their own player characters. Allow game services to be provided.

The gamer 120 may be connected to the screen update system 100 through the communication network 130, and may have a terminal means 125 for accessing the communication network 130. The gamer 120 may perform an operation control of a player character, a mouse move, an item selection, and the like, and receive an updated image from the screen update system 100 according to the gamer's operation.

The terminal means 125 collectively refers to a device having a memory capability and equipped with a microprocessor, such as a desktop PC, a notebook PC, a PDA, a mobile communication terminal, and the like, which can be connected to a terminal having a computing capability in a wired or wireless communication network.

2 is a flowchart illustrating an example of a screen update method according to an embodiment of the present invention. The screen update method according to the present embodiment is performed by the screen update system 100.

First, in step 201 the gamer generates a first image update event. The first image is generated by rendering image resource data to represent a 3D image in a game. Hereinafter, the first image and the first image update event will be described in more detail with reference to FIG. 3.

3 is a diagram illustrating an example of a first image according to an embodiment of the present invention.

The first image represents an image displayed in three dimensions on the game, such as a player character 301, a non-player character (NPC) 302, a dynamic background 303, and the like. It is generated by a screen update request for a change in motion of a 3D image such as a movement of a position or a combat action with respect to one image 301, 302, 303.

Such a screen update request means a screen update request for a first image having a longer time required for rendering processing than a second image, that is, a first image having a relatively long image update period. For example, when a battle occurs between the player character 301 and the NPC 302 or a battle occurs between the player characters while the game is in progress, the screen is updated according to a change in the motion of the player character 301 and the NPC 302. If necessary, a first image update event for the first image occurs.

When the first image update event occurs, the screen update system 100 identifies the image resource data associated with the first image update event from a predetermined basic recording space in step 202. This step 202 is a process of making image resource data requiring a screen update to be recognized in the basic recording space. Where the image update event is This may occur in association with a change in the position of the player character in the game.

Next, in step 203, the identified image resource data is loaded into a buffer space including a plurality of buffers. The image resource data are cyclically loaded into the buffer on a frame-by-frame basis. The first image of one frame is used to generate one whole image as described below.

In the present embodiment, a case in which a buffer space for loading image resource data includes two first buffers and a second buffer will be described as an example. In some embodiments, a buffer space including three or more buffers may be adopted. In addition, the basic recording space and the buffer space may be implemented by recording devices that are physically or logically separated.

The screen update system 100 sequentially loads the image resource data identified as above into the first buffer and the second buffer in frame units. For example, when generating the first images of 30 frames sequentially from frames 1 to 30, when the image resource data corresponding to frame 1 is loaded into the first buffer, the image corresponding to frame 2 Resource data may be loaded into a second buffer. As described later, after the first image is generated using the image resource data loaded in the first buffer, the first buffer is loaded with image resource data corresponding to frame 3 again. In this way, the image resource data corresponding to each frame is repeatedly loaded in the first buffer and the second buffer sequentially.

In other words, the image resource data from frame 1 to frame 30 are alternately loaded in order of the first buffer and the second buffer to be rendered in turn to ensure that the first image is continuously updated so that it is natural for gamers. We want to provide a game screen.

In operation 204, the screen update system 100 sequentially renders image resource data loaded in the buffer space for each buffer to generate a first image at a first frame rate. Step 204 is repeated while the first image update event continues, for example, in the case of a movement of a player character, until the player character is moved to a position desired by the gamer. Meanwhile, the first image generated as described above constitutes a game screen together with the second image generated as described below.

The first frame rate is related to the speed at which the first image is generated / updated, for example, 30 [frame / s] may be selected. Since the calculation for the real-time rendering processing of the three-dimensional image takes a relatively long time compared to processing the two-dimensional and text, the first image in the terminal means 125 having a computer-like specification used by ordinary individual users such as a PC It is difficult to update the frame rate to a frame rate of 30 [frame / s] or more. However, if only an update rate of about 30 [frame / s] is guaranteed, the gamer is provided with a sufficiently natural game screen.

Meanwhile, while the first image update event occurs, the screen update system 100 continuously renders image resource data loaded in the buffer space to generate / update the first image in units of frames.

In particular, the screen update system 100 renders image resource data corresponding to frame 1 loaded in the first buffer of the plurality of buffers to generate a first image corresponding to frame 1, and the generated first image is During the display, the image resource data corresponding to the second frame loaded in the second buffer is rendered to generate the first image corresponding to the second frame. The first image corresponding to the second frame is updated in such a manner as to replace the first image corresponding to the first frame.

Next, in step 205 the gamer generates a second image update event. The second image generated according to the second image update event is an image that can be generated at a higher speed than the first image, and in some cases, the second image may be generated without rendering processing. Hereinafter, the second image and the second image update event will be described in more detail with reference to FIG. 4.

4 is a diagram illustrating an example of a second image according to an embodiment of the present invention. The second image is a movement of a mouse point by a gamer, an input of a conversation (chat text) of a chat window 401, a gamer interface input such as an item selection window 403, or an item owned by the gamer to proceed with a game. An image that changes according to an input associated with an inventory window 402, which is a space representing state information. The second images 401, 402, and 403 are images in which the rendering process for updating the image has little time or the rendering process is not required, that is, the image update period can be selected very shortly.                     

In operation 206, the screen update system 100 generates a second image according to the second image update event at a second frame rate. Step 206 is repeated while the second image update event continues.

For example, when a gamer selects an item included in the inventory window 402, a second image update event is generated, and the screen update system 100 performs an image associated with moving a mouse to select an item, displaying a selected item, and the like. Instead of loading resource data into the buffer space, a second image is generated and reflected on the game screen.

The second frame rate is related to the update rate for generating and updating the second image and is measured as the number of frames displayed per unit time.

In the case of the second image, since the second image is generated without being loaded into the buffer means and the amount of calculation required to generate the second image is not large, the second image may be generated at a higher speed than the first image. The second image may be updated in real time at a relatively higher frame rate than the first image because the image does not need rendering processing, or if necessary, the computational amount is not large. Therefore, the second frame rate may be selected to be [60frame / s] larger than the first frame rate. In addition, while the second image update event occurs, the second image may be continuously generated / updated and reflected on the game screen in real time.

In operation 207, the screen update system 100 generates the entire image by synthesizing the first image and the second image. In this case, as a method of synthesizing the first image and the second image, a method of overlapping the first image and the second image may be used. For example, in FIG. 4, the second images 401, 402, and 403 have a blank area outside of the corresponding area, and the second image is displayed on the blank area when the second image is overlaid on the first image. The simplest synthesis method can be adopted.

In addition, a synthesis method may be used in which a region constituting one entire image is divided into a first region and a second region, and the first image is displayed only in the first region and the second image is displayed only in the second region.

Since the first image and the second image are independently generated through separate processes as described above, the entire image is updated every time even if only the first image or only the second image is updated. Further, according to the present embodiment, the entire image is updated at the first frame rate when only the first image is updated, and at the second frame rate when only the second image is updated, the first image and the second image are updated. In the case of updating at the same time, the entire image has an area updated at the first frame rate and an area updated at the second frame rate.

When the first image update event and the second image update event occur at the same time, for example, when the NPC approaches and the gamer enters the chat text in the chat window, the first image is updated at 60 [frame / s]. At speed, since the second image is generated at a slow update rate (30 [frame / s]) compared to the update rate of the first image, the second image is already generated while the first image of frame 1 is being rendered. It is applied directly on the whole image.

After the second image has already been applied to the entire image, the first image that has been processed for rendering is applied to the entire image, and the entire image is updated through this process.

Finally, in step 208, the screen update system 100 displays the entire image generated as described above on the display means of the terminal means 125.

Comparing the screen update system 100 according to the present invention with the prior art, the advantages of the screen update method according to the present invention are clearly revealed. The prior art screen update system requires A to process both the faster C process (e.g. displaying the contents of the chat text) and the more time-consuming A step (e.g. movement of the player character). Since the game screen can be updated only when both the step and the C step are finished, the game screen is updated at the selected update rate according to the processing speed of the step A which takes time.

On the other hand, according to the present embodiment, since step A, that is, the process of generating the first image and step C, that is, the process of generating the second image, are processed independently of each other, only the second image and the first image need to be updated. In the absence of, the update speed of the entire image, i.e., the game screen, is determined by the processing speed of step C, and thus can be updated faster.

In particular, even when a rack occurs in the real-time rendering process, that is, even when a failure occurs in the process of performing the A stage and cannot normally process the A stage, the conventional technology has a problem in generating the entire image, According to the example, since the second process is normally performed to generate the second image, and the update of the second image may be reflected in the entire image, the player may provide a response to some requests during the screen update request.

Although the content of the chat text is not displayed properly or gamers feel more frustrated when the second image is not updated properly, such as when the movement speed of the mouse point is drastically slowed, the first image is a rack phenomenon. By means of providing at the update rate of less than 30 [frame / s] by the second image has a meaning of providing at the normal update rate.

In addition, in the above-described embodiment, a case in which two types of images are generated and updated like the first image and the second image has been described, but the scope of the present invention is the same as the first image, the second image, and the third image. Selecting two or more types of images, and generating and combining each image at different update rates, respectively, will include a configuration that generates the entire image.

5 is a block diagram illustrating a screen update system according to another exemplary embodiment of the present invention.

As shown in FIG. 5, the screen update system 100, 500 includes a basic recording space 501, an identification means 502, a loading means 503, a first image generating means 504, and a second image generating means. 505, display means 506.

The basic recording space 501 is a device for storing image resource data. Is a logical or physical recording device for storing image resource data required for rendering processing.

The identifying means 502 identifies the image resource data associated with the first image update event from the basic recording space 501 when the first image update event occurs. For example, when the player character moves in a predetermined direction, image resource data corresponding to an area to be moved is identified.

The loading means 503 sequentially loads the image resource data identified by the identification means 502 into each buffer in frame units in a buffer space including a plurality of buffers.

The first image generating unit 504 generates a first image by sequentially determining and rendering image resource data loaded in each buffer for each buffer. The first image generating means 504 repeatedly generates the first image at the first frame rate and generates and updates the first image while the first image update event continues.

The second image generating means 505 generates a second image associated with the second image update event when the second image update event occurs. The second image generating means 505 repeatedly generates a second image at a second frame rate and generates and updates the second image while the second image update event continues. The second image is an image that does not need rendering processing or, if necessary, its calculation amount is not large, so that the time required for generating the second image is relatively smaller than that of the first image. Therefore, the second frame rate can be set to a value that is significantly larger than the first frame rate.

The display means 506 synthesizes the first image and the second image to generate an entire image, and displays the entire image on a display device of the terminal means 125 such as a monitor. For example, the entire image may be generated by overlapping the first image and the second image.

In the entire image generated in this manner, since the first image is updated at a first frame rate and the second image is updated at a separate update rate such as the second frame rate, a second image such as displaying chat text content It is reflected in the entire image at a much faster rate than the first image.

In addition, embodiments of the present invention include computer-readable media containing program instructions for performing various computer-implemented operations. The program recorded on the computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts.

6 is an internal block diagram of a general purpose computer device that may be employed to perform the screen update method according to the present invention.

Computer device 600 includes one or more processors 610 connected to a main memory including random access memory (RAM) 620 and read only memory (ROM) 630. The processor 610 may also be called a central processing unit (CPU). As is well known in the art, the ROM 630 serves to transfer data and instructions to the CPU unidirectionally, and the RAM 620 typically transfers data and instructions bidirectionally. Used to. RAM 620 and ROM 630 may include any suitable form of computer readable media. Mass storage 640 is bidirectionally coupled to processor 610 to provide additional data storage capability, and may be any of the computer readable recording media described above. The mass storage device 640 is used to store programs, data, and the like, and is a secondary memory device such as a hard disk which is generally slower than the main memory device. Certain mass storage devices such as CD ROM 660 may be used. The processor 610 may include one or more input / output interfaces such as a video monitor, trackball, mouse, keyboard, microphone, touchscreen display, card reader, magnetic or paper tape reader, voice or handwriting reader, joystick, or other known computer input / output device. 650 is connected. Finally, the processor 610 may be connected to a wired or wireless communication network through the network interface 670. Through this network connection, the procedure of the method described above can be performed. The apparatus and tools described above are well known to those skilled in the computer hardware and software arts.

The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention.

Hereinafter, the rendering used in the present invention will be described schematically. Rendering is one of the techniques for creating an image. Rendering can be used to create realistic graphical images by representing three-dimensional textures, such as variations in color and density.

Real-time rendering is the rapid creation of images on a computer and is one of the most active areas of user interaction in computer graphics. The speed at which images are displayed is in frames per second (fps). As described above, when the image is displayed at a speed of about 15 frames per second or more, it may be referred to as real time rendering. Conversely, users don't need to speed up image display at more than 75 frames per second.

Real-time rendering is primarily aimed at 1) improving the visual appearance of objects drawn into images and 2) creating and displaying images at a speed that allows the user to feel the appropriate interactivity. Various techniques may be used. In particular, the latter case may be implemented by acceleration algorithms.

For example, real-time rendering defines materials and lights to improve their visual appearance, anti-aliasing, gamma correction, advanced lighting, It uses a technique to improve the image quality by shading.

Real-time rendering may also use texturing as an acceleration algorithm. Texture processing is performed by applying an image onto the surface of an object. Other examples of acceleration algorithms are used in culling and pipeline optimization techniques.

Although the rendering has been described above schematically, techniques that may be used for rendering are not limited thereto. That is, the screen update system according to the present invention can perform rendering using all of the conventional rendering techniques as well as newly developed rendering techniques, and even in this case, all of them belong to the scope of the present invention.

Currently, a variety of rendering techniques that can perform rendering are being researched at a high speed, such that "a quality image can be interacted with at a high speed and prevents excessive load on a rendering system." When the same conditions are complementary to each other, the proper technique may be selected by the system designer according to the purpose, specification, and environment of the system.

While specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by the equivalents of the claims.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

According to the present invention, a screen update method for updating an entire image by synthesizing the two or more images after generating each of two or more types of images that can be generated in different ways by different processes, respectively, at different update rates. And a system is provided.

In addition, according to the present invention, by separating each process to be processed in order to implement a single full image by each update rate to be processed independently, it is possible to prevent the update rate of the entire image is slowed together in accordance with the slowest process A screen update method and system are provided.

In addition, according to the present invention, when updating a game screen, an image portion having a greater need to respond quickly to a gamer's request, such as displaying contents of a chat text or displaying a positional movement of a mouse point, has a faster update rate. A screen update method and system are provided that can be updated in a 3D image, so that even if a rack is generated in the process of generating a 3D image, there is no influence on the update of the image portion.

Claims (1)

In the screen update method, When a predetermined image update event occurs, identifying image resource data associated with the image update event from a predetermined basic recording space; Loading the identified image resource data into a buffer space including a plurality of buffers, the image resource data being cyclically loaded into the buffer on a frame-by-frame basis, respectively; Determining image resource data loaded in the buffer sequentially for each buffer and rendering the determined image resource data to generate an image at a predetermined frame rate; And Displaying the generated image on a predetermined display means. Screen update method comprising a.

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