KR101598706B1 - Computing device and computer program for graphically expressing background of a game - Google Patents

Abstract

A computing device and a computer program for stereoscopic display of a background graphic are disclosed. According to the present invention, a background graphic is divided into two or more layers having different Z orders, and the character is overlaid on the layer. Thereafter, as the character move command is input, the screen display area of at least a part of the two or more layers is dynamically moved or the scale is changed. The background object of the layer with the largest Z order may be morphed. Character movement, layer movement, scale change, or morphing are animated and displayed on the screen. With this processing, a stereoscopic background expression according to the movement of the character can be performed with only a few 2D images.

Description

[0001] The present invention relates to a computing device and a computer program for three-dimensional display of a background graphic,

The present invention belongs to the field of game technology. More specifically, it corresponds to a technique of processing the background of a game, and processing 2D graphics data so as to have a three-dimensional feeling.

With the widespread adoption of smartphones, the software technology field is changing dramatically, especially in smartphones. The same is true for the game technology sector, and the market is being reorganized around mobile.

However, the smartphone has a smaller clock speed compared to the conventional home game console or desktop computer environment, and the data storage space is extremely limited.

In addition, there is a limitation that the communication speed is significantly lower than that of the conventional optical LAN, instead of wireless data communication without space limitation.

Therefore, the initial mobile games have been developed with a low capacity casual game that can be played with simple operation according to the hardware environment.

However, recently introduced smart phones have enough hardware specifications to render 3D modeling data in real time, and games such as game background graphics and 3D graphics of characters are processed in real time like existing desktop games .

Nevertheless, the smartphone still has insufficient storage space to store 3D graphics data and mapping data when compared to the desktop environment, which makes it difficult to install and execute, In real-time rendering is often prone to frame degradation.

Accordingly, in a mobile environment such as a smart phone, there is a need to develop a technology capable of dramatically reducing the load required for 3D graphics processing while maintaining the quality of a game by providing a 3D graphics environment - at least partially have.

Document 1: Korean Patent Laid-Open Publication No. 10-2011-0102359 "Extending 2D Graphics in 3D GUI" Document 2: Korean Patent Laid-Open No. 10-2008-0070579 "Method for reconstructing a 3D scene from 2D image sequences" Document 3: Korean Patent Laid-Open No. 10-2009-0098630 "Graphic Data Processing for Stereoscopic Display"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems occurring in the prior art,

In a mobile with limited hardware resources, as the character moves during gameplay, a plurality of 2D images for background display are shifted, scaled or morph by differentiating by a predetermined algorithm, I would like to suggest how to handle it so that you can feel it.

According to an aspect of the present invention, a computer program embodied on a medium for stereoscopic display of a background graphic includes a set of instructions to be executed by a computing device for processing a next step.

Displaying background objects on two or more layers, wherein each layer has a different Z order, overlaying and displaying the character over it; And

Processing a movement of at least a part of the two or more layers as a character move command is input;

At this time, the movement distances of the respective layers are different from each other, and the moving directions of the respective layers are all matched.

On the other hand, the moving direction of the character can be determined as the character moving command is input, and the moving direction of each layer can be made coincident with the moving direction of the character or the opposite direction.

At this time, the movement distance of each layer is shorter than the movement distance of the layer having a larger Z order than the corresponding layer.

On the other hand, instead of moving the layer having the largest Z order, other pre-prepared graphic images, for example, 3D modeling data of the background object of the layer may be morph into a graphic image rendered at a different angle.

According to another aspect of the present invention, there is provided a computer program embodied on a medium for stereoscopic display of a background graphic according to an embodiment of the present invention includes a set of instructions to be executed by a computing device for processing a next step.

Displaying background objects on two or more layers, wherein each layer has a different Z order, overlaying and displaying the character over it; And

Changing a scale of at least a part of the two or more layers as a character move command is input;

The scale change ratio of each layer is processed differently. More specifically, the scale change ratio is processed in the order of Z order.

On the other hand, the scale of each layer is increased or decreased in a batch, and neither one of them can be reduced or enlarged as opposed to another layer.

On the other hand, the background object of the layer having the largest Z order can morph into another graphic image prepared in advance, instead of changing the scale.

A computer program embodied on a medium for stereoscopic display of a background graphic according to the present invention includes a display device; A processor; And an input device.

According to the present invention, in displaying a background graphic of a game, instead of avoiding real-time rendering of a plurality of 3D objects, real-time coordinate movement / scale change / change of a character having a plurality of different Z orders, By displaying the morphing process of the front layer image as an animation, it is possible to express stereoscopic feeling with only 2D graphic data.

In this case, it is possible to smoothly play the game even in low-end mobile by eliminating the phenomenon of the decrease in the number of frames generated in real-time 3D rendering,

Furthermore, the mapping data and the 3D modeling data can be removed, and the amount of game data can be effectively reduced.

1 is a functional block diagram illustrating the structure of a computing device,
FIG. 2 is a flowchart illustrating an execution sequence of a computer program for three-dimensional display of a background graphic according to an embodiment of the present invention,
3 is a view for explaining a technique of dividing a background into layers,
FIG. 4 is a diagram illustrating a process of moving each layer according to movement of a character,
5 is a view for explaining the process of morphing instead of moving the front layer,
6 is a flowchart for explaining an execution sequence of a computer program for stereoscopic display of a background graphic according to this embodiment of the present invention,
7 is a view for explaining a process of changing the scale of each layer according to the movement of the character.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the present invention and the accompanying drawings, wherein like reference numerals refer to like elements.

It is to be understood that when an element is referred to as being "comprising" another element in the description of the invention or in the claims, it is not to be construed as being limited to only that element, And the like.

Also, in the description of the invention or the claims, the components named as "means", "parts", "modules", "blocks" refer to units that process at least one function or operation, Each of which may be implemented by software or hardware, or a combination thereof.

In some embodiments, the background graphic is displayed in two or more layers. At this time, the respective layers are moved so as to coincide with the moving direction of the character, and the moving distance of each layer is differentiated so as to allow the camera to feel a three-dimensional feeling as if it moves on a plane.

The movement of the layer continues as the character moves continuously, and the movement distance of the layer is proportional to the movement distance of the character. Thus, it is possible to reproduce the dynamic camera movement in the three-dimensional graphic.

According to some embodiments, the scale of each layer is changed according to the movement of the character, and the scale change ratio of each layer is differentiated so that the camera feels a three-dimensional feeling as if zooming in or zooming out.

In some embodiments, each layer is moved or scaled, with the foreground layer morphing into other pre-rendered images instead of moving or scaling to make the camera feel like a three-dimensional spin.

Hereinafter, the Z order refers to a value used as a criterion for determining which one is displayed on which of two or more graphic objects is displayed on the screen.

The Z order is also called the Depth value, Z value. If the value is small, it is displayed below. Conversely, if it is large, it is displayed on top of it.

In the following, a computing device refers to a device that loads a computer program into a memory and executes the instructions contained in the computer program through the processor.

For example, a personal computer, a server, a smart phone, and the like. In addition, if the above definition is satisfied, there is no limitation on the form or name.

1 is a functional block diagram illustrating the structure of a computing device.

1, the computing device 10 has a processor 11, a memory 12, a storage 13, a display device 14, and an input device 15.

The processor 11 is generally called a central processing unit (CPU), and executes instructions contained in a computer program.

The memory 12 is a space for loading computer program data to be executed. A known random access memory (RAM) corresponds to this.

The storage 13 is a means for storing a computer program and various data. Even if the power supply is cut off, the stored data does not disappear. For example, a hard disk drive, a solid state drive, a flash memory, and the like.

The display device 14 is a device for visually displaying data, such as a liquid crystal display (LCD) monitor or a touch screen.

The input device 15 is a means for a user to operate the computing device 10, such as a keyboard, a mouse, a joystick, and the like.

Depending on the type of computing device 10, a touch screen or G sensor may be provided as an input device.

The invention as described below may be implemented in such computing device 10, or in the form of such computing device 10.

Hereinafter, an embodiment of a computer program for stereoscopic display of a background graphic will be described with reference to FIG. 2 to FIG.

[Example 1]

2 is a flowchart illustrating an execution procedure of a computer program for three-dimensional display of a background graphic according to an embodiment of the present invention.

In an embodiment of the present invention, it is assumed that the computing device 10 executes a computer program such as a game, and divides the graphics processing of the background into two or more layers, and displays a character overlay on the layer.

FIG. 3 illustrates a process of dividing a background into two or more layers and displaying them.

In the example of FIG. 3 (a), all three layers are prepared. By default, all layers are transparent, with the background objects superimposed over them.

Each layer has a different Z order. The Z-order is displayed so that the larger side goes up.

In the example of FIG. 3, the far-bottom layer, that is, the layer having the smallest Z order, displays a distant background object such as a mountain or sky.

The next layer shows less distant objects such as buildings, and the nearest layer - that is, the nearest terrain to the largest Z-ordered layer - can be displayed.

The characters are overlaid on the front.

When they are all overlapped, they are seen as shown in FIG. 3 (b).

The portion indicated by the dotted line in (b) of FIG. 3 indicates a portion of the computing device 10 shown in the display device 14.

When rendering the 3D modeling data, the perspective can be perceived according to the distance between the camera and the 3D object. The expression of near or far is the distance between the virtual camera and the background objects, assuming that 3D modeling data is rendered. .

Referring to FIG. 2, the processing of the computing device 10 will be described. First, the processor 11 divides the object into two or more layers to display background objects, and overlayes the characters on the objects. At this time, each layer has different Z orders as described above (S11).

Thereafter, as the user inputs a command for moving the character (hereinafter referred to as "character movement command") using the input device 15, the processor 11 processes the movement of the character and moves the layers .

The character movement command is input by an operation using the input device 15. Depending on the type of the input device 15, a character direction command, a direction input of a mouse or a joystick, a touch of a touch screen, Detection or the like.

At this time, the moving directions of the respective layers to be moved are processed to coincide with each other, but the moving distance is processed differently (S12).

4 is a view for explaining a process of moving each layer according to movement of a character.

As shown in FIG. 4, as the character moves to the left, the layers move slightly to the right.

The processor 11 allocates the space of each layer on the memory, determines the area to be displayed on the screen for each layer, and displays them on the display device 14 by overlaying them according to the Z order.

In Fig. 4, a dotted line indicates a portion displayed on the screen.

In FIG. 4 (a), when a character movement command for moving the character to the left is inputted, the layers move to the right as shown in FIG. 4 (b).

However, in the example of Fig. 4, the virtual camera is fixed to the character, so that the character remains at the center of the display device 14. [

You can see that the layers move a lot to the right, the next to the next, and the least to the next.

The movement of a layer means that an area displayed on the screen moves.

That is, as can be seen from the example of FIG. 4, the moving distance of the layer having the larger Z order is larger than the moving distance of the layer having the smaller Z order. The coordinate movement distance of the area displayed on the screen is increased in the order of the Z order to the nearest virtual camera.

However, the moving directions of all the layers coincide with each other.

The movement of the character and the movement of the layer are animated in real time and displayed on the screen of the display device 14.

In this example, if the character continues to move, the movement of the layer continues. That is, the moving distance of each layer is proportional to the moving distance of the character.

In the example of FIG. 4, the case where the camera is fixed to the character in the three-dimensional graphic is reproduced, and the movement speed of the character and the movement speed of the layer are also proportional.

The movement time of the character also coincides with the movement time of the layer.

In other words, if the character moves at a high speed because the character move command is input continuously, the layer moves at a high speed. If the character stops moving for a certain time, the layer stops moving simultaneously during the character's movement time.

In the example of FIG. 4, the case where the camera is fixed to the character in the three-dimensional graphic, that is, the case where the coordinates of the character are fixed to the center of the screen, is reproduced, but the coordinates of the character can be freely moved on the screen by separating the camera and the character .

In this case, the processor 11 processes the moving directions of the layers so as to coincide with the moving direction of the character.

Particularly, in the case of such processing, the first layer performs image morphing processing instead of moving the coordinates of the area displayed on the screen.

FIG. 5 is a view for explaining a process of morphing a forward layer instead of moving the layer.

5 (a) and 5 (b), the latter two layers move slightly to the right, but the frontmost layer can see that the background object itself has changed to another image.

5 (a) and 5 (b), 2D images obtained by rendering the 3D modeling data of the building obliquely from the side and 2D images obtained by rendering the same 3D modeling data from the front are respectively displayed.

When displaying the character's movement as an animation, the processor 11 simultaneously processes the movement of the following layers in real time. Then, the first layer morphs the image shown in FIG. 5 (a) to the image shown in FIG. 5 (b). As the morphing technique, known ones can be used.

By doing this, the character can feel the three-dimensional feeling that the character moves around the building.

Hereinafter, this embodiment of a computer program for stereoscopic display of a background graphic will be described with reference to FIG. 6 to FIG.

[Example 2]

In this embodiment of the present invention, the three-dimensional feeling is processed by changing the scale of the layers.

6 is a flowchart for explaining an execution procedure of a computer program for three-dimensional display of a background graphic according to this embodiment of the present invention.

6, the processor 11 first divides the background into two or more layers, and displays background objects on each layer.

Each layer has a different Z order. Each layer is superimposed on the Z order, and the character is overlaid on the Z layer (S21).

Thereafter, as the character move command is input, the processor 11 changes the scale of each layer.

The movement of the character and the change of the scale of the layer are animated in real time and displayed on the screen of the display device 14 (S22).

At this time, each layer is enlarged or reduced in scale. All the layers to be scaled or reduced are all enlarged or reduced together. That is, while one is reduced, the rest does not expand.

However, the processor 11 processes scale change ratios of the respective layers differently from each other.

7 is a view for explaining a process of changing the scale of each layer according to the movement of the character.

7A shows a state in which a character moving command for moving the character inward of the screen is input.

7B, it can be seen that the scale of each layer is changed. The frontmost layer - that is, the layer with the largest Z order - is magnified about 1.5 times, the next layer is 1.2 times, and the last layer is 1.0 times.

That is, the scale changing ratio gradually increases in order of Z order.

In the example of FIG. 7, the last layer with the smallest Z order is excluded from the scale change target, and the scale change is processed for the remaining layers.

By processing in this manner, it is possible to make the character feel a three-dimensional feeling as if it approaches a background object displayed on the frontmost layer.

Conversely, the scale of the layers may be reduced as shown in FIG. 7 (a) in FIG. 7 (b). In this case as well, the scale change ratio is larger in order of Z order. The frontmost layer is maximally reduced, and the next layer is reduced a bit.

As a result of this processing, the character can move to the front side of the screen and feel a stereoscopic effect as if the character moves away from the background object displayed on the frontmost layer.

On the other hand, even in the example shown in Fig. 7, the first layer may perform the morphing processing as in the example of Fig. 5 instead of changing the scale.

While the movement of the character and the scale change of the layer are animated and displayed on the screen, the background object of the foremost layer is morph processed from one image to another.

At this time, the image of the background object of the foremost layer is a 2D image in which the 3D modeling data of the background object is rendered at different distances and angles from the camera.

By processing in this way, in addition to the perspective obtained by simply enlarging or reducing the size of the region displayed on the screen, the image of the feature close to the character is displayed by animation by morphing the rendered image at different angles according to the movement of the character. Real-time 3D graphics rendering.

As described above, the computer program for stereoscopic display of the background graphic according to the present invention can be recorded on a recording medium.

In this case, the recording medium may include any type of medium readable by a computer, such as DVD-ROM, CD-ROM, hard disk, USB memory, and flash memory.

On the other hand, the expression to be recorded on the recording medium is to be interpreted to include not only the case of being recorded on the recording medium of this type but also the case of being provided through a communication line in the form of an intangible carrier wave (Carrier Wave).

The technical idea of the present invention has been described through several embodiments.

It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described above from the description of the present invention. Further, although not explicitly shown or described, those skilled in the art can make various modifications including the technical idea of the present invention from the description of the present invention Which is still within the scope of the present invention. The above-described embodiments described with reference to the accompanying drawings are for the purpose of illustrating the present invention, and the scope of the present invention is not limited to these embodiments.

The present invention can be applied to the field of game technology.

10: computing device
11: Processor
12: Memory
13: Storage
14: Display device
15: Input device

Claims (19)

Displaying background objects on two or more layers, wherein each layer has a different Z order, overlaying and displaying the character over it; And
Processing a movement of at least a part of the two or more layers as a character move command is input, comprising: a set of instructions for a computing device to execute,
In the step of processing the movement of the layer, the movement distances of the layers to be moved are different from each other,
A computer program embodied on a medium for stereoscopic display of a background graphic, wherein the layer having the largest Z order is morphed into another graphic image prepared in advance, instead of being moved. delete delete delete The method according to claim 1,
Wherein the other graphic image prepared in advance is a graphic image rendered by rendering the 3D modeling data of the background object of the largest Z order at a different angle, in a medium for stereoscopic display of a background graphic. The method according to claim 1,
In processing the movement of the layer,
A computer program embodied on a medium for three-dimensional display of a background graphic, said program comprising the steps of: determining a movement distance of the character as the character movement command is input; and processing the movement distance of the character to be proportional to the movement distance of the layer. The method according to claim 1,
In processing the movement of the layer,
Wherein the moving speed of the character is determined as the character moving command is inputted and processing is performed such that the moving speed of the character is proportional to the moving speed of the layer. The method according to claim 1,
In processing the movement of the layer,
Wherein the movement of the layer is stopped while the character is moving while the movement of the character is stopped while the movement of the layer is stopped as the character is moved. Displaying background objects on two or more layers, wherein each layer has a different Z order, overlaying and displaying the character over it; And
Changing a scale of at least a portion of the two or more layers as a character move command is input, the command including a set of instructions for a computing device to execute,
In processing the scale change of the layer,
The scale change rates of the layers whose scales are changed are processed differently,
A computer program embodied in a medium for stereoscopic display of a background graphic, wherein background objects of a layer with the largest Z order are morph into another graphic image prepared in advance, instead of changing the scale. delete delete delete 10. The method of claim 9,
Wherein the other graphic image prepared in advance is a graphic image rendered by rendering the 3D modeling data of the background object of the largest Z order at an angle different from that of the camera, in the medium for stereoscopic display of the background graphic. A display device; A processor; And an input device, the computing device comprising:
Wherein the processor divides the object into two or more layers to display a background object through the display device,
The moving distance of each of the layers is processed differently and the layer having the largest Z order is moved instead of the moving distance of the layer. A computing device for stereoscopic display of background graphics, morphing into other prepared graphic images. delete delete A display device; A processor; And an input device, the computing device comprising:
Wherein the processor divides the object into two or more layers, each layer having a different Z order, displaying the background object through the display device, overlaying and displaying the character on the object,
As the character movement command is input through the input device,
The scale change ratio of each layer is different from that of at least a part of the two or more layers, and the background object of the layer having the largest Z order is morph into another graphic image prepared in advance, instead of changing the scale , A computing device for stereoscopic display of a background graphic. delete delete

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