KR20190063046A - Method and apparatus for creating virtual reality contents for virtual reality-based interior consulting service - Google Patents

Abstract

A method for generating virtual reality content for a virtual reality-based interior consulting service is disclosed. The method for generating virtual reality content comprises the steps of: determining whether a two-dimensional drawing file satisfies a three-dimensional conversion condition; converting the two-dimensional drawing file satisfying the three-dimensional conversion condition into a three-dimensional asset; and generating virtual reality content based on the three-dimensional asset. The two-dimensional drawing file includes at least one interior object among a wall, a window, a door, and a void.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and apparatus for generating virtual reality contents for a virtual reality-based interior consulting service,

The present invention relates to a method and an apparatus for generating a virtual reality content for a virtual reality-based interior consulting service, and more particularly, to a method for generating a virtual reality content via a three- .

Although the interior construction is complex and various additional factors and changes have been made, after the construction contract is concluded, the completed interior may be different from the interior that the customer expected. Also, depending on the local interior material, the overall interior design that the customer feels may be different.

In order to reduce the construction risk of the interior construction, the customer needs to visually confirm the space where the interior construction is completed by arranging the interior material in the virtual space to be the interior object according to his / her taste before concluding the interior construction contract have.

In order to meet the needs of the above customers, a virtual reality-based interior service is emerging. VIRTUAL REAL-TIME INTERIOR SERVICE is a service that provides customers with a space that has been completed by interior design and provides interior quotes related to them.

In order to realize a virtual space in the virtual reality-based interior service, it is necessary to create a wall modeled in three dimensions (3D).

In order to create a 3D wall for realizing the virtual space, a 2D drawing such as a 2D DWG file mainly used in a CAD program such as AutoCAD is integrated into a 3D interactive content such as Unity 3D To use it in the authoring tool, 3D modeling must be completed within the CAD program and the file must be converted and loaded using a separate FBX (Filmbox) converter. This causes incompatibility and high error rate, which causes a gap with the 3D MAX program, which is mainly used in the interior field.

Accordingly, there is a need for a method of easily creating a three-dimensional wall for constructing a virtual space based on a two-dimensional drawing file.

The present invention aims at automatically generating a three-dimensional model based on a two-dimensional drawing in creating a virtual reality content for a virtual reality-based interior consulting service.

It is another object of the present invention to reduce an error occurrence rate of an automatic conversion by automatically checking a three-dimensional conversion condition when a two-dimensional drawing is automatically converted into a three-dimensional model and providing feedback to the user.

According to an aspect of the present invention, a method for generating a virtual reality content includes: determining whether a three-dimensional conversion condition is satisfied for a two-dimensional drawing file; Transforming a two-dimensional drawing file satisfying a three-dimensional transformation condition into a three-dimensional asset; And creating virtual reality content based on the three-dimensional asset; Wherein the two-dimensional drawing file may include at least one interior object of a wall, a window, a door, and a void.

According to another aspect of the present invention, there is provided a device for generating a virtual reality content, comprising: a memory in which a program for performing a method of generating a virtual reality content is recorded; And a processor for executing the program, wherein the processor determines whether the three-dimensional conversion condition is satisfied with respect to the two-dimensional drawing file by executing the program, and when the two-dimensional drawing file satisfying the three- Dimensional asset, creating a virtual reality content based on the three-dimensional asset, and the two-dimensional drawing file can include at least one interior object of a wall, a window, a door, and a void.

According to another aspect of the present invention, a virtual reality-based interior consulting service system determines whether a three-dimensional conversion condition is satisfied with respect to a two-dimensional drawing file, and determines a two-dimensional drawing file satisfying the three- a virtual reality content generation device for generating virtual reality content based on the three-dimensional asset; And a virtual reality terminal for providing a virtual reality content to a user, wherein the two-dimensional drawing file may include at least one of an interior object of a wall, a window, a door, and a void.

According to the present invention, in generating a virtual reality content for a virtual reality-based interior consulting service, a three-dimensional model can be automatically generated based on a two-dimensional drawing.

Also, according to the present invention, when the two-dimensional drawing is automatically converted into the three-dimensional model, the error rate of the automatic conversion can be reduced by checking the three-dimensional conversion condition and providing feedback to the user.

1 is a view for explaining a virtual reality contents generation system according to an embodiment.
2 is a block diagram illustrating a configuration of an apparatus for generating a virtual reality content according to an exemplary embodiment of the present invention.
3 is a flowchart illustrating a method of generating a virtual reality content according to an exemplary embodiment of the present invention.
4 is an operational flowchart illustrating a step of determining whether a three-dimensional conversion condition is satisfied according to an exemplary embodiment.
FIG. 5 is an operational flowchart illustrating a step of converting a two-dimensional drawing file according to one embodiment into a three-dimensional asset.
6 is an operational flowchart illustrating a step of setting a wall height value using an elevation according to an embodiment.
7 is an operational flow diagram illustrating a step of generating virtual reality content based on a three-dimensional asset according to one embodiment.
8 is a diagram illustrating a process of converting a two-dimensional drawing into a virtual reality content according to another embodiment.

In the following, embodiments will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

Various modifications may be made to the embodiments described below. It is to be understood that the embodiments described below are not intended to limit the embodiments, but include all modifications, equivalents, and alternatives to them.

The terms used in the examples are used only to illustrate specific embodiments and are not intended to limit the embodiments. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this embodiment belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. In the following description of the embodiments, a detailed description of related arts will be omitted if it is determined that the gist of the embodiments may be unnecessarily blurred.

1 is a view for explaining a virtual reality contents generation system according to an embodiment.

Referring to FIG. 1, a virtual reality content generation system 1 according to an embodiment of the present invention includes a virtual reality content generation apparatus 100 and a virtual reality terminal 200. And a communication network 300 for connecting the virtual reality contents generation apparatus 100 and the virtual reality terminal 200 to each other.

The apparatus for generating virtual reality contents 100 according to an embodiment of the present invention generates virtual reality contents based on a two-dimensional drawing and provides the virtual reality contents to the virtual reality terminal 200. [

The virtual reality terminal 200 may display the virtual reality contents provided from the virtual reality content generation apparatus 100 to the user. The virtual reality terminal 200 may be a head mounted display (HMD) device for displaying the virtual reality contents realistically to the user.

As an alternative embodiment, the virtual reality terminal 200 may refer to a communication terminal that can use a terminal application in a wired / wireless communication environment. Here, the virtual reality terminal 200 may be a portable terminal of a user. More specifically, the virtual reality terminal 200 may include any type of handheld computing device (e.g., PDA, email client, etc.), any form of mobile phone or any other type of computing or communication platform However, the scope of the present invention is not limited thereto.

In this case, the virtual reality terminal 200 can display the virtual reality contents through the terminal application. The terminal application is a virtual reality content reproduction-only application, and may be an application for dividing the display of the virtual reality terminal 200 horizontally and displaying an image including parallax information so as to correspond to each of the user's eyes.

The terminal application may be an application embedded in the virtual reality terminal 200 or an application downloaded from the application distribution server and installed in the virtual reality terminal 200.

Meanwhile, the communication network 300 connects the virtual reality content generation apparatus 100 and the virtual reality terminal 200. That is, the communication network 300 refers to a communication network that provides a connection path so that the virtual reality terminal 200 can access the virtual reality contents generation apparatus 100 and then transmit and receive data. The communication network 300 may be a wired network such as LANs (Local Area Networks), WANs (Wide Area Networks), MANs (Metropolitan Area Networks), ISDNs (Integrated Service Digital Networks), wireless LANs, CDMA, Bluetooth, But the scope of the present invention is not limited thereto.

2 is a block diagram illustrating a configuration of an apparatus for generating a virtual reality content according to an exemplary embodiment of the present invention.

Referring to FIG. 2, an apparatus 100 for generating a virtual reality content according to an exemplary embodiment includes a communication module 110, a memory 120, a processor 130, and a database 140.

In detail, the communication module 110 provides a communication interface necessary for providing the transmission / reception signals between the virtual reality contents generation apparatus 100 and the virtual reality terminal 200 in the form of packet data in cooperation with the communication network 300. The communication module 110 may transmit the virtual reality content to the virtual reality terminal 200 and receive the control signal of the virtual reality terminal 200 from the virtual reality content generation apparatus 100. [

Here, the communication module 110 may be a device including hardware and software necessary to transmit / receive a signal such as a control signal or a data signal through a wired / wireless connection with another network device.

The memory 120 stores a program for performing a method of generating a virtual reality content. In addition, the processor 130 performs a function of temporarily or permanently storing data to be processed. Here, the memory 120 may include magnetic storage media or flash storage media, but the scope of the present invention is not limited thereto.

The processor 130 controls the entire process of operating the virtual reality content generation apparatus 100 as a kind of central processing unit. Each step performed by the processor 130 will be described later with reference to FIG.

Here, the processor 130 may include any kind of device capable of processing data, such as a processor. Herein, the term " processor " may refer to a data processing apparatus embedded in hardware, for example, having a circuit physically structured to perform a function represented by a code or an instruction contained in the program. As an example of the data processing apparatus built in hardware, a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, an application-specific integrated circuit (ASIC) circuit, and a field programmable gate array (FPGA), but the scope of the present invention is not limited thereto.

The database 140 plays a role of previously storing data used by the virtual reality contents generation apparatus 100 in generating virtual reality contents.

For example, the database 140 may include information about a three-dimensional transformation condition that is checked in the process of converting a two-dimensional drawing into a three-dimensional asset.

In addition, the database 140 may include information on a general wall height value according to a building type, a window, a door, and a size of a void.

Although not shown in FIG. 2, some of the above-described information may be stored in a database (not shown) that is physically or conceptually separated from the database 140.

3 is a flowchart illustrating a method of generating a virtual reality content according to an exemplary embodiment of the present invention.

Referring to FIG. 3, a method for generating a virtual reality content according to an exemplary embodiment of the present invention first determines whether a three-dimensional conversion condition is satisfied for a two-dimensional drawing file (S310).

Here, the two-dimensional drawing file may include at least one interior object of a wall, a window, a door, and a void.

Here, the three-dimensional conversion condition includes a first condition that is satisfied when a polyline object is not interrupted, a second condition that is satisfied when each line is not overlapped, The third condition satisfied, the independent line may include a fourth condition that is satisfied when the polyline is created, and a fifth condition that is satisfied when the polyline object is a single closed object.

Next, in a method of generating a virtual reality content according to an exemplary embodiment, the virtual reality content generation apparatus 100 converts a two-dimensional drawing file satisfying a three-dimensional conversion condition into a three-dimensional asset (S320).

Next, in a method of generating a virtual reality content according to an exemplary embodiment, the virtual reality content generation apparatus 100 generates a virtual reality content based on the three-dimensional asset (S330).

Details of each of the steps of FIG. 3 will be described later with reference to FIG. 4 to FIG.

4 is a flowchart illustrating an operation S310 of determining whether a three-dimensional conversion condition is satisfied according to an exemplary embodiment.

Referring to FIG. 4, in step S310 of determining whether the three-dimensional conversion condition is satisfied according to an exemplary embodiment, the virtual reality contents generation apparatus 100 generates three-dimensional It is determined whether the conversion condition is satisfied (S410).

If there is no interior object that does not satisfy the three-dimensional conversion condition, the process may proceed to step S320.

If there is an interior object that does not satisfy the three-dimensional conversion condition, the virtual reality content generation apparatus 100 provides information about the interior object to the user (S420).

In step S420, the virtual reality-contents generating apparatus 100 may display an interior object that does not satisfy the three-dimensional conversion condition so as to be distinguished from other interior objects satisfying the three-dimensional conversion condition on the two-dimensional drawing.

For example, an interior object that does not satisfy the three-dimensional conversion condition may be highlighted on a two-dimensional drawing to be distinguished from other objects, and information on what condition the object is unsatisfied may be provided.

5 is a flowchart illustrating an operation S320 of transforming a two-dimensional drawing file into a three-dimensional asset according to an exemplary embodiment of the present invention.

Referring to FIG. 5, in step S320 of converting a 2D drawing file into a 3D asset according to an embodiment, the virtual reality contents generating apparatus 100 changes the file structure of the 2D drawing file city).

Here, the step of changing the file structure of the 2D drawing file may be to import the 2D drawing file through the 3D modeling program.

Here, the 2D drawing file may be a 2D dwg file mainly used in a CAD program such as AutoCAD.

Also, the 3D asset may be a filmfox (FBX) file, and the modeling program may be a program that uses the corresponding 3D fbx file, such as 3D MAX.

Next, the content generation apparatus 100 determines whether an elevation is present in the two-dimensional drawing (S510).

The process in the case where it is determined in step S510 that the elevation is present will be described later with reference to FIG.

If it is determined in step S510 that the elevation does not exist, the virtual reality contents generation apparatus 100 determines whether the two-dimensional drawing corresponds to an apartment or a general house (S520).

In step S520, the virtual reality-contents generating apparatus 100 may determine the type of building of the two-dimensional drawing based on the user input.

As a result of the determination in step S520, when the two-dimensional drawing is an apartment or a general house, the virtual reality contents generation apparatus 100 may set the wall height value based on a preset reference height value for an apartment or a general house ( S530).

For example, since the floor height of the general house is generally 2.3 to 2.5 m, when the wall height value of the two-dimensional drawing is preset to 2.4 m in step S530, the virtual reality contents generating apparatus 100 sets the corresponding value as a height value .

If it is determined in step S520 that the two-dimensional drawing is not an apartment or a general house, the virtual reality contents generation apparatus 100 may set the wall height value based on the user input value (S531).

Next, the virtual reality-contents creating apparatus 100 determines whether a window, a door, or a void exists in the two-dimensional drawing (S540).

As a result of the judgment in the step S540, when there is a window, a door or a void in the two-dimensional drawing, the virtual reality contents generating apparatus 100 can set the wall height value based on the reference ratio set for each window, door or void (S541).

In step S541, the virtual reality-contents generating apparatus 100 can set the wall height value based on the floor height and based on the reference ratio set for each of the windows, doors, or voids.

Here, a predetermined reference value may be applied to an external window, an inner window, an indoor door, an outdoor door, and the like attributed to the wall depending on the nature of the wall.

Next, the virtual reality contents generation apparatus 100 creates a wall based on the interior object and the wall height value included in the two-dimensional drawing (S550).

Next, the virtual reality contents generation apparatus 100 arranges windows, doors, and voids based on the interior objects and the walls (S560).

In step S560, when a window, a door, or a void exists in a two-dimensional drawing, the virtual reality-contents generating apparatus 100 arranges a window, a door, or a void in a corresponding position, Alternatively, even if there is no void, an appropriate object can be created and placed in a space other than the wall.

6 is an operational flowchart illustrating a step of setting a wall height value using an elevation according to an embodiment.

6, when it is determined that the elevation is present in the step S510 shown in FIG. 5, the apparatus 100 for generating a virtual reality content generates a 2D drawing file The wall height value is set based on the included floor plan and elevation.

More specifically, the virtual reality contents generation apparatus 100 designates an elevation for each direction (S610).

Next, the virtual reality-contents generating apparatus 100 extracts a space value corresponding to the window, the door, or the void based on the plan view and the elevation per direction (S620).

Next, the virtual reality contents generation apparatus 100 sets a wall height value based on a space value corresponding to a window, a door, or a void (S630).

After the step S630, the virtual reality-contents generating apparatus 100 may proceed to the step S550 shown in Fig.

7 is an operational flow diagram illustrating a step S330 of creating virtual reality content based on a three-dimensional asset according to an embodiment.

Referring to FIG. 7, in step S330 of generating a virtual reality content based on a three-dimensional asset according to an embodiment, the virtual reality content generation apparatus 100 first changes the file structure of the three-dimensional asset (S710 ).

Here, step S710 may be to import the three-dimensional asset through the virtual reality content production program.

Here, the virtual reality contents production program may be a program such as Unity using a prefab file.

Next, the virtual reality contents generation apparatus 100 resets the position value of the transform included in the three-dimensional asset having the file structure changed (S720).

Next, the virtual reality-contents generating apparatus 100 changes the main light source to a directional type (S730).

Next, the virtual reality contents generation apparatus 100 groups walls, floors, and ceilings into game objects (S740).

8 is a diagram illustrating a process of converting a two-dimensional drawing into a virtual reality content according to another embodiment.

Referring to FIG. 8, according to another embodiment, first, the apparatus for generating virtual reality contents 100 determines whether a two-dimensional drawing can be converted into a three-dimensional asset or not, The virtual reality contents generation apparatus 100 converts the two-dimensional drawing satisfying the three-dimensional conversion condition into a three-dimensional asset (Fig. 8 (b)) and generates a three-dimensional asset file (.fbx) , Changes the three-dimensional asset file to a virtual reality content file (prefab), changes the main light source to a directional type, and groups walls, doors, and voids into game objects (c)), the two-dimensional drawing is converted into the virtual reality contents.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing device may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

Furthermore, the above-described methods may also be embodied in the form of a recording medium including instructions executable by a computer, such as program modules, being executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. The computer-readable recording medium may also include computer storage media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

1: Virtual reality based interior consulting system
100: Virtual Reality Content Generation Device 110: Communication Module
120: memory 130: processor
140: Database 200: Virtual Reality Terminal
300: Network

Claims (10)

A method for generating a virtual reality content for a virtual reality based interior consulting service,
Determining whether the three-dimensional conversion condition is satisfied with respect to the two-dimensional drawing file;
Transforming the two-dimensional drawing file satisfying the three-dimensional transformation condition into a three-dimensional asset; And
Generating virtual reality content based on the three-dimensional asset;
, ≪ / RTI &
The two-dimensional drawing file
A wall, a window, a door, and a void. The method according to claim 1,
The step of determining whether the three-dimensional conversion condition is satisfied
Determining whether the three-dimensional conversion condition is satisfied for each of the interior objects included in the two-dimensional drawing file; And
Providing information on an interior object that does not satisfy the three-dimensional conversion condition to a user;
And generating a virtual reality content. 3. The method of claim 2,
The step of providing the user with information on the interior object that does not satisfy the three-dimensional conversion condition
Wherein the interior object which does not satisfy the three-dimensional conversion condition is displayed on the two-dimensional drawing so as to be distinguished from other interior objects satisfying the three-dimensional conversion condition. The method according to claim 1,
The three-dimensional transformation condition is
A first condition that is satisfied when the polyline object is not interrupted,
A second condition satisfied when each line is not overlapped,
A third condition satisfied when there is no overlapping part of the polyline object,
The independent line is a fourth condition that is satisfied when made of a polyline, and
A fifth condition that is satisfied when the polyline object is a single closed object,
And generating a virtual reality content. The method according to claim 1,
The step of transforming the two-dimensional drawing file into a three-
Changing a file structure of the two-dimensional drawing file;
Setting a wall height value based on whether the two-dimensional drawing corresponds to an apartment or a general house and whether or not a window, a door, or a void is present;
Creating a wall based on the interior object and the wall height value; And
Placing windows, doors and voids based on the interior object and the wall;
And generating a virtual reality content. The method according to claim 1,
The step of transforming the two-dimensional drawing file into a three-
Changing a file structure of the two-dimensional drawing file;
Setting a wall height value based on a top view and an elevation view included in the two-dimensional drawing file;
Creating a wall based on the interior object and the wall height value; And
Placing windows, doors and voids based on the interior object and the wall;
, ≪ / RTI &
The step of changing the file structure of the 2D drawing file
And importing the two-dimensional drawing file through a three-dimensional modeling program. The method according to claim 1,
Wherein the step of generating the virtual reality content based on the three-
Changing a file structure of the three-dimensional asset;
Resetting a position value of a transform included in the modified three-dimensional asset;
Changing a main light source to a directional type; And
Grouping walls, floors and ceilings into game objects;
, ≪ / RTI &
Wherein changing the file structure of the three-dimensional asset comprises:
And importing the three-dimensional asset through a virtual reality content production program. A memory in which a program for performing a method of generating a virtual reality content is recorded; And
And a processor for executing the program,
The processor, by executing the program,
Dimensional drawing file; determining whether the two-dimensional drawing file satisfies the three-dimensional conversion condition; converting the two-dimensional drawing file satisfying the three-dimensional conversion condition into a three-dimensional asset; Create content,
The two-dimensional drawing file
A wall, a window, a door, and a void. Dimensional drawing file; determining whether the two-dimensional drawing file satisfies the three-dimensional conversion condition; converting the two-dimensional drawing file satisfying the three-dimensional conversion condition into a three-dimensional asset; A virtual reality content generation device for generating a content; And
A virtual reality terminal for providing the virtual reality contents to a user;
≪ / RTI >
The two-dimensional drawing file
Wherein the at least one interior object includes at least one of a wall, a window, a door, and a void. A computer-readable recording medium having recorded thereon a program for performing a method of generating a virtual reality content according to any one of claims 1 to 7.

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