KR20210124131A - Method for automatically arranging augmented reality contents - Google Patents

Abstract

The present invention is a computer program stored in a computer recording medium for performing an automatic AR content placement method for generating augmented reality (AR) content by placing virtual content in a three-dimensional space and includes instructions for causing a processor to perform a method comprising: a step of locating the virtual content partitioned by a surface composed of a plurality of second polygons in the three-dimensional space partitioned by a surface composed of a plurality of first polygons; a step of detecting a proximal plane having the closest distance to the virtual content from among planes formed by a preset number of first polygons or more among the first polygons when a preset first condition is satisfied; and a step of determining whether to activate an automatic posture change mode of the virtual content in which movement is performed based on a second preset condition. Accordingly, the virtual content can be placed in a natural position and posture.

Description

How to automatically place AR content {METHOD FOR AUTOMATICALLY ARRANGING AUGMENTED REALITY CONTENTS}

The present invention relates to a method for automatically arranging virtual content in AR (Augmented Reality) content. More particularly, it relates to a method for automatically arranging AR content that can prevent unnaturalness due to manual arrangement by automatically arranging virtual content in a natural position and posture based on spatial information of a three-dimensional space in AR content and virtual content.

In recent years, various contents implemented using virtual information, such as virtual reality or augmented reality, have been proposed. BACKGROUND ART A general virtual reality (virtual reality) is a virtual space created by artificial technology using a computer or the like, and has characteristics that are similar to the real world but are not real. Augmented reality (AR) is a field of virtual reality, and refers to a technique capable of recognizing virtual information as a part of reality by synthesizing virtual information with a real object that a user sees.

Recently, with the development of mobile-related technologies, portable electronic devices to which AR technology is applied are being commercialized. For example, a function of overlapping and outputting virtual information on an actual image photographed by a user on the display of a portable electronic device having a photographing function, such as a smart phone, etc. is now popular and can be experienced relatively commonly. Here, the virtual information may be text information or image information about a specific person or animal, or a real object such as a building or place, and in some cases may include non-visual information such as music. Such AR technology has the advantage of providing users with realistic content in which real objects and virtual information are fused.

In order to produce such AR content or to reproduce the produced AR content, it is essential to arrange the virtual content at a certain position in a three-dimensional space modeling an object, which is a real thing, in a certain posture. According to the existing arrangement method, the author manually arranges the virtual content in the 3D space when AR content is produced. However, this method is not only very cumbersome to accurately place, but if it is incorrectly placed, the virtual content may appear overlapping a wall or object in a 3D space, or even be located behind the wall or object. In addition, if the posture of the virtual content is manually set, the virtual content may take a very awkward or unstable posture that is difficult to appear naturally in reality.

Difficulties related to the arrangement of such virtual content may be a problem not only when producing AR content but also when playing it. According to the existing method, when an inputted real object is matched with a learned three-dimensional space in a database, AR is augmented with virtual content based on the position and posture information of an input means such as a camera into which the object is input. content will be played. However, even in this case, if there is a difference between the actual input object and the learned 3D space, there is a problem that the virtual content may be arranged unnaturally.

In this regard, Patent Document 1 among the prior art documents discloses a technique for setting an arrangement area for arranging multimedia content in a virtual space based on the location of a mobile device, and displaying the multimedia content as AR content in the set area. . However, this prior art also has a problem that it may look awkward when the arrangement area is set incorrectly, and it is difficult to solve a problem that may arise from an attitude other than the position of the content.

Accordingly, development of a new technology capable of easily and accurately determining the natural position and posture of virtual content in AR content production and reproduction is required.

Korean Patent Publication No. 10-1372099 (published on July 7, 2005)

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for preventing the arrangement of virtual content in an unnatural position or posture in a process of arranging virtual content in a three-dimensional space in AR content.

However, the problems to be solved of the present invention are not limited to those mentioned above, and other problems to be solved that are not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be.

The present invention is a computer program stored in a computer recording medium for performing an automatic arrangement method of AR content for generating augmented reality (AR) content by arranging virtual content in a three-dimensional space, comprising a plurality of first polygons positioning the virtual content partitioned by a surface consisting of a plurality of second polygons in the three-dimensional space partitioned by the surface; and when a preset first condition is satisfied, the plurality of first polygons Among the planes formed by a preset number of first polygons or more, detecting a plane having the closest distance to the virtual content from among planes, and automatic posture of the virtual content in which movement is performed based on a preset second condition and instructions for causing the processor to perform a method including determining whether to activate the change mode.

The preset first condition may be that, among the planes, a plane having a distance from the virtual content equal to or less than a preset value exists.

The preset first condition is that the automatic plane attaching mode is activated so that the steps of detecting a plane having the closest distance from the virtual content to the virtual content and performing the movement of the virtual content are automatically performed. it could be

The moving of the virtual content includes outputting a preset notification when any one of the plurality of first polygons and any one of the plurality of second polygons come into contact with each other during the movement of the virtual content. can be programmed.

In the step of determining whether to activate the automatic posture change mode, if a preset second condition is satisfied, the automatic posture change mode is activated to change the posture of the virtual content to a stable posture, and the stable posture is In a state in which the distance between the plane and the virtual content is 0, a space surrounded by the plurality of first polygons and a plurality of 3D pixels including a rigid body of a predetermined size in which the virtual content is uniform in density and not deformed (voxel), and assuming that a constant force is applied to each of the plurality of 3D pixels in a vertical downward direction in the 3D space, the virtual content is in a stationary state, and the preset second condition is The step of changing the posture of the virtual content to a stable posture with respect to the virtual content may be performed automatically.

In the fourth step, the sum of the distances moved by each of the plurality of 3D pixels is the minimum in the process of determining whether the automatic posture change mode is activated among the stable postures for the posture of the virtual content. It can be programmed to include changing posture.

According to an embodiment of the present invention, the virtual content may be arranged in a natural position and posture based on the 3D space in the AR content and the spatial information of the virtual content. Accordingly, it is possible to solve the problem that AR content feels unnatural due to the awkward or unstable position and posture of the virtual content, which may occur in the conventional manual arrangement method.

1 is a diagram conceptually illustrating a method for automatically arranging AR content according to an embodiment of the present invention.
2 is a diagram illustrating a sequence of a method for automatically arranging AR content executed in an apparatus for automatically arranging AR content according to an embodiment of the present invention.
3 is a diagram conceptually illustrating an automatic posture setting process in a method for automatically arranging AR content according to an embodiment of the present invention.
4 is a diagram conceptually illustrating division of a three-dimensional object into three-dimensional pixels in the method for automatically arranging AR content according to an embodiment of the present invention.
5 is a diagram illustrating a sequence of a method for automatically arranging AR content executed in an AR content reproducing apparatus according to an embodiment of the present invention.
6 is a diagram illustrating a configuration of an apparatus for automatically arranging AR content for executing a method for automatically arranging AR content according to an embodiment of the present invention.
7 is a diagram illustrating a configuration of an AR content reproducing apparatus for executing a method for automatically arranging AR content according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

1 is a diagram conceptually illustrating a method for automatically arranging AR content according to an embodiment of the present invention. Referring to FIG. 1 , AR content receives an image of an object including one or more objects from the outside and is generated by three-dimensional modeling in a three-dimensional space 10 generated by three-dimensional modeling of virtual content ( 20) can be created by placing By the 3D modeling, the 3D space 10 may be partitioned by a surface comprised of a plurality of first polygons, and the 3D content 20 may be partitioned by a surface comprised of a plurality of second polygons. can be Since the detailed process of the 3D modeling is obvious to those skilled in the art, further detailed description will be omitted.

If the 3D content 20 is disposed in an area corresponding to an empty space that does not come into contact with any object in the 3D space 10 , this may be perceived as an unnatural situation for the user. In order to solve this problem, a plane among the surfaces in the 3D space 10 may be extracted, and the 3D content 20 may be positioned thereon. Here, the plane may be limited to being formed by more than a preset number of first polygons, and in some cases, a curved surface of less than a certain curvature may also be included in the plane. Preferably, the 3D content 20 may be located in the proximal plane 30 closest to the 3D content 20 among a plurality of planes in the 3D space 10 .

However, as described above, when the 3D content 20 is manually positioned on a plane, it may be unnatural in terms of position and posture. 20) will automatically determine the position and posture, and the detailed process will be described later.

2 is a diagram illustrating a sequence of a method for automatically arranging AR content that is executed in an apparatus for automatically arranging AR content according to an embodiment of the present invention. However, since the method for automatically arranging AR contents of FIG. 2 is only an embodiment of the present invention, the spirit of the present invention is not limitedly interpreted through FIG. 2 .

The AR content automatic arrangement device is a device that the author of AR content can use for the authoring of AR content. It may be a handheld-based device such as a tablet PC (PC) or a personal digital assistant (PDA). An exemplary configuration of the AR content automatic arrangement device will be described later.

Hereinafter, a method for automatically arranging AR content executed in an apparatus for automatically arranging AR content according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2 . First, the 3D content 20 is positioned in the 3D space 10 (S110). And when the preset first condition is satisfied ( S120 ), a proximal plane 30 having the closest distance to the 3D content 20 from among planes formed by the plurality of first polygons is detected ( S130 ). Here, the preset first condition may be that, among the planes, a plane in which the distance from the 3D content 20 is equal to or less than a preset value exists. This is to ensure that the automatic attachment process is performed only when a plane exists within a certain distance from the three-dimensional content 20. Therefore, when it is outside a certain distance from an arbitrary plane, the author manually determines the location of the three-dimensional content 20 can be changed

Next, an automatic repositioning process is performed. Specifically, the 3D content 20 is moved until the distance between the proximity plane 30 and the 3D content 20 becomes 0 ( S140 ). In the plane in the three-dimensional space including the proximity plane 30 described so far, the distance from the three-dimensional content 20 is the second polygon closest to the plane among the plurality of second polygons constituting the surface of the three-dimensional content 20 . 2 It can be defined as the distance from the polygon.

In addition, the step of moving the 3D content 20 includes any one of a plurality of first polygons constituting the surface of the 3D space 10 and the surface of the 3D content 20 during the movement of the 3D content. A preset notification may be output when any one of the plurality of second polygons constituting the second polygon is in contact with each other. The preset notification is a type of notification that the author can perceive through sight or hearing, and may include information on the first polygon and the second polygon in which contact has occurred. The occurrence of such contact means that a spatial overlap between the object and the 3D content 20 in the 3D space 10 occurs, and this may cause an unnatural arrangement, so that the author is informed of this.

Next, an automatic posture change process is performed. The automatic posture change process may be configured as an optional process of changing the posture of the 3D content to a stable posture (S160) when a preset second condition is satisfied (S150). The preset second condition may be that an automatic posture change mode in which the step ( S160 ) of changing the posture of the three-dimensional content 20 to a stable posture is automatically performed may be activated. That is, since the author can determine whether to perform the automatic posture change process by determining whether to activate it, the author's choice of AR content creation process can be broadened.

3 is a diagram conceptually illustrating an automatic posture setting process in a method for automatically arranging AR content according to an embodiment of the present invention. Referring to FIG. 3 , placing the 3D content 20 in a stable posture may be necessary to give a natural feeling to a user reading the AR content. For example, assuming that there is a long, pointed object such as a pencil, it is very unnatural to stand with the pointed end in contact with the floor. This is because, in reality, the pencil rotates about the end of the pencil in contact with the floor surface as an axis until the side surface of the pencil touches the floor surface by gravity acting as a torque on the pencil. In such a situation, the stable posture of the pencil is a state in which the side is in contact with the floor while the rotational movement is stopped. Similarly, the 3D content 20 of FIG. 3 may also take a stable posture on the proximity plane 30 .

The stable posture of the three-dimensional content 20 is a space surrounded by a plurality of first polygons and the three-dimensional content 20 is dense in a state in which the distance between the proximity plane 30 and the three-dimensional content 20 is 0. It is filled with a plurality of 3D pixels (voxel) composed of a rigid body of a uniform and non-deformable size, and a constant force in the vertical downward direction of the 3D space 10 is applied to each of the plurality of 3D pixels. Assuming that it works, it can be defined as a state in which the 3D content 20 does not move. In other words, assuming that the three-dimensional space 10 and the three-dimensional content 20 are moved to the real space, the three-dimensional content 20 does not rotate due to gravity.

The definition of the stable posture will be described in more detail as follows. For ease of analysis, it may be assumed that the three-dimensional content 20 has a uniform density and is a rigid body that does not deform due to compression or tension. In order to analyze the movement of the three-dimensional content 20 assumed as a rigid body, the rigid body is divided into a unit rigid body having a micro volume, and an analysis method in mechanics that considers that gravity is applied to each unit rigid body A method similar to that can be used. Therefore, the space inside the 3D content 20 can be divided into 3D pixels having a preset size, and for each 3D pixel, the force in the vertical downward direction of the 3D space 10, that is, the real world It can be assumed that a force corresponding to the gravitational force of This will be described by way of example with reference to FIG. 4 .

4 is a diagram conceptually illustrating division of a three-dimensional object into three-dimensional pixels in the method for automatically arranging AR content according to an embodiment of the present invention. Referring to FIG. 4 , the object 40 on the left can be modeled as a set 41 of three-dimensional pixels as shown on the right, and it is assumed that force is applied to each three-dimensional pixel in a certain direction and size, and each three-dimensional By analyzing the behavior of the pixel, the rotational motion of the object 40 can be modeled. In order to increase the accuracy of the analysis, it is required to make the size of the three-dimensional pixel as small as possible.

Referring back to FIG. 3 , a posture when the 3D content 20 to which the above assumptions are applied does not rotate any more may be defined as a stable posture of the 3D content 20 . Since not only the 3D content 20 but also the modeled objects in the 3D space 10 are assumed to be rigid bodies, the 3D contents 20 spatially overlap with the modeled objects in the 3D space 10 . things don't happen.

However, in the real world, there may be a plurality of stable postures for one object. For example, in the case of an object having a rectangular parallelepiped shape, even if any of the six surfaces is brought into contact with the floor surface, the object can stand stably without rotational movement. Accordingly, the 3D content 20 may also have a plurality of stable postures, and in some cases, it may be necessary to select an appropriate posture among them.

Such selection may be made through various criteria. As an example, a posture in which the sum of the distances moved by each of the plurality of three-dimensional pixels is the minimum in the process of the three-dimensional content 20 taking a stable posture may be selected. have. Accordingly, it is possible to make the movement of the object appear more natural during the automatic posture change process.

According to the automatic AR content arrangement method executed in the AR content automatic arrangement apparatus as described above, the three-dimensional content 20, that is, the virtual content, can be arranged in a natural position and posture in a three-dimensional space within the AR content. Accordingly, it is possible to solve the problem that AR content feels unnatural due to the awkward or unstable position and posture of the virtual content, which may occur in the conventional manual arrangement method.

5 is a diagram illustrating a sequence of a method for automatically arranging AR content executed in an AR content reproducing apparatus according to an embodiment of the present invention. However, since the method for automatically arranging AR contents of FIG. 5 is only an embodiment of the present invention, the spirit of the present invention is not limitedly interpreted through FIG. 5 .

The AR content automatic arrangement device is a device that a user who reads AR content can use to play (enhance) AR content, and is generally used through a mobile device that can receive an image of an external object such as a smartphone or a smart pad. It may be implemented, but is not limited thereto. An exemplary configuration of the AR content reproducing apparatus will be described later.

Hereinafter, a method for automatically arranging AR content executed in an AR content reproducing apparatus according to an embodiment of the present invention will be described with reference to FIG. 5 . A description of a portion overlapping with FIGS. 1 to 4 may be omitted.

First, a three-dimensional space is generated by three-dimensional modeling of an image of an inputted real object (S210). In this process, 3D depth data obtained through a 3D depth sensor or the like may be used. Next, when the generated 3D space matches the previously learned 3D space stored in the database (S220), the 3D content is placed in the 3D space (S230). In this process, data regarding a pose of a camera receiving an image of a real object may be used.

The above-described processes are generally performed in a normal AR content reproduction process. However, even if the position and posture of the 3D contents are naturally adjusted during the AR contents authoring process, the 3D contents may look awkward if the 3D space in which the input object is modeled is somewhat different from the 3D space learned in advance. have. Accordingly, it may be necessary to perform the following steps in the AR content reproduction process.

Accordingly, when the automatic plane attachment mode for automatically changing the position of the three-dimensional content is activated (S240), a proximal plane that is the closest plane to the three-dimensional content among the planes included in the three-dimensional space is detected. (S250). Then, the 3D content is attached to the proximity plane by moving the 3D content until the distance between the adjacent plane and the 3D content becomes 0 (S260). In this process, when any one of the plurality of first polygons constituting the surface of the 3D space and any one of the plurality of second polygons constituting the surface of the 3D content come into contact with each other during the movement of the 3D content, the preset You can print notifications.

Next, when the automatic posture change mode for automatically changing the position of the three-dimensional content is activated (S270), the posture of the three-dimensional content is changed to a stable posture. Since the stable posture has been described with reference to FIGS. 1 to 4 , further detailed description thereof will be omitted herein.

According to the method for automatically arranging AR content executed in the AR content reproducing apparatus described so far, the three-dimensional content 20, ie, the virtual content, can be arranged in a natural position and posture in the three-dimensional space within the AR content. Accordingly, when the three-dimensional space in which the input object is modeled is somewhat different from the three-dimensional space learned in advance, it is possible to solve the problem that the AR content feels unnatural.

The above-described embodiments of the method of the present invention include a computer-readable recording medium including program instructions for performing various computer-implemented operations. In addition, the embodiments of the method of the present invention include a computer program stored in a computer-readable recording medium for performing each step of the method.

6 is a diagram illustrating a configuration of an apparatus for automatically arranging AR content for executing a method for automatically arranging AR content according to an embodiment of the present invention. The apparatus 100 for automatically arranging AR content of FIG. 6 may include an input unit 110 , a control unit 120 , and an output unit 130 .

The input unit 110 may receive an input requesting to perform a predetermined command from the author of the AR content, and may be implemented through an input device such as a keyboard, a mouse, or a touch pad. .

The controller 120 may load a 3D space modeling an object and 3D content modeling a virtual content, and may place the 3D content in the 3D space. In addition, the control unit 120 may change the position of the 3D content in the 3D space based on the input received by the input unit 110 by the manual arrangement method, and the position of the 3D content by the automatic arrangement method as described above. Or you can change your posture. Switching between the manual placement method and the automatic placement method may be performed based on an input by the author through the input unit 110 . The control unit 120 may be implemented by an arithmetic device including a microprocessor.

The output unit 130 may output the three-dimensional space and three-dimensional content located in the three-dimensional space so that the author can visually recognize it, and output and show the process of changing the position or posture of the three-dimensional content. have. The output unit 130 may be implemented through a typical display device such as a liquid crystal display (LCD) or an organic light emitting diode (OLED).

7 is a diagram illustrating a configuration of an AR content reproducing apparatus for executing a method for automatically arranging AR content according to an embodiment of the present invention. The AR content reproducing apparatus 200 of FIG. 7 may include an object input unit 210 , a user input unit 220 , a control unit 230 , and an output unit 240 .

* The object input unit 210 may receive an image of an object from outside the AR content playback device, and may be implemented through an image input device such as a general camera or a 3D depth camera.

The user input unit 220 may receive an input requesting to perform a predetermined command from a user viewing AR content, and may be implemented through an input device such as a touch screen.

The control unit 230 may extract a 3D space based on the image of the object received by the object input unit 210, and when the extracted 3D space matches the previously learned 3D space stored in the database 3D content may be located in 3D space. Also, the controller 230 may change the position or posture of the 3D content by the automatic arrangement method as described above. Execution of the automatic arrangement method of the control unit 230 may be performed based on a bar input by the user through the user input unit 220 . That is, when the user selects to execute the automatic placement method, the controller 230 may execute the automatic placement method. The control unit 230 may be implemented by a computing device including a microprocessor.

The output unit 240 may output the 3D space and AR contents including 3D contents located in the 3D space so that the user can visually recognize them. The 3D content may be output in a position and posture set by the execution of the automatic arrangement method of the controller 230 . The output unit 240 may be implemented through a typical display device such as a liquid crystal display (LCD) or an organic light emitting diode (OLED).

Combinations of each block in the block diagram attached to the present invention and each step in the flowchart may be performed by computer program instructions. These computer program instructions may be embodied in a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, such that the instructions executed by the processor of the computer or other programmable data processing equipment may be configured in the respective blocks in the block diagram or in the flowchart. Each step creates a means for performing the described functions. These computer program instructions may also be stored in a computer-usable or computer-readable memory that may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory. The instructions stored in the block diagram may also produce an item of manufacture containing instruction means for performing the functions described in each block in the block diagram or in each step in the flowchart. The computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other programmable data processing equipment. It is also possible that instructions for performing the processing equipment provide steps for carrying out the functions described in each block of the block diagram and each step of the flowchart.

Further, each block or each step may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function(s). It should also be noted that in some alternative embodiments it is also possible for the functions recited in blocks or steps to occur out of order. For example, it is possible that two blocks or steps shown one after another may in fact be performed substantially simultaneously, or that the blocks or steps may sometimes be performed in the reverse order according to the corresponding function.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations will be possible without departing from the essential quality of the present invention by those skilled in the art to which the present invention pertains. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

According to an embodiment of the present invention, it is possible to prevent the AR content from feeling unnatural by arranging the virtual content in a natural position and posture based on the three-dimensional space in the AR content and the spatial information of the virtual content.

100: AR content automatic placement device
110: input unit
120: control unit
130: output unit
200: AR content playback device
210: object input unit
220: user input unit
230: control unit
240: output unit

Claims (7)

A computer program stored in a computer recording medium for performing an AR content automatic arrangement method for generating augmented reality (AR) content by arranging virtual content in a three-dimensional space,
positioning the virtual content partitioned by a surface consisting of a plurality of second polygons in the three-dimensional space partitioned by a surface consisting of a plurality of first polygons;
detecting a plane having the closest distance to the virtual content from among planes formed by a preset number or more of the plurality of first polygons when a preset first condition is satisfied; and
A computer program comprising instructions for causing a processor to perform a method comprising determining whether to activate an automatic posture change mode of the virtual content based on a second preset condition. The method of claim 1,
The preset first condition is
Among the planes, there is a plane in which the distance to the virtual content is less than or equal to a preset value.
A computer program stored on a computer recording medium. The method of claim 1,
The preset first condition is
The automatic plane attachment mode for automatically performing the steps of detecting a plane having the closest distance to the virtual content with respect to the virtual content and moving the virtual content is activated
A computer program stored on a computer recording medium. The method of claim 1,
The step of moving the virtual content includes:
and outputting a preset notification when any one of the plurality of first polygons and any one of the plurality of second polygons come into contact with each other during the movement of the virtual content.
A computer program stored on a computer recording medium. The method of claim 1,
In the step of determining whether to activate the automatic posture change mode,
When the preset second condition is satisfied, the automatic posture change mode is activated to change the posture of the virtual content to a stable posture,
The stable posture includes a space surrounded by the plurality of first polygons and a rigid body of a predetermined size in which the density is uniform and the virtual content is not deformed while the distance between the proximity plane and the virtual content is 0 When it is assumed that a constant force is applied to each of the plurality of 3D pixels in the vertical downward direction of the 3D space, the virtual content does not move,
The preset second condition is
Changing the posture of the virtual content to a stable posture with respect to the virtual content is automatically performed
A computer program stored on a computer recording medium. 6. The method of claim 5,
Changing the posture of the virtual content to a posture in which the sum of the distances of each of the plurality of 3D pixels is minimized in the process of determining whether an automatic posture change mode is activated among the stable postures programmed to contain
A computer program stored on a computer recording medium. As a computer-readable recording medium storing a computer program,
The computer program is
A computer-readable recording medium comprising instructions for causing a processor to perform the method according to any one of claims 1 to 6.

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