JP2023093312A - Content management system, content management method, and program - Google Patents

Abstract

To provide a content management system configured to improve efficiency of content management, a content management method, and a program.SOLUTION: A content management system includes: an acquisition unit which acquires performance information indicating performance of a client device that displays content using 3DCG (3-Dimensional Computer Graphics); a determination unit which determines, based on the acquired performance information, whether to cause the client device to execute rendering for generating the content; and a rendering control unit which selects, when the client device executes the rendering, to transmit content information indicating information on the content to the client device, or selects, when the client device does not execute the rendering, to transmit the content generated by rendering the content information to the client device.SELECTED DRAWING: Figure 2

Description

The present invention relates to a content management system, content management method, and program.

2. Description of the Related Art Conventionally, in content management, various techniques have been proposed for managing information about content on a server and viewing and editing the content on the web.

For example, in Patent Document 1 below, with regard to Internet content such as web pages, web applications, and websites, using tools that allow users to work directly on the web, Internet content managed by a server is edited, manipulated, and processed. A technique is disclosed that enables creation and the like.

Japanese Patent Publication No. 2017-523535

By the way, when content is managed by a server, it is necessary to exchange information about the content between the client and the server when the user views or edits the content. As a result, necessary work and processes are required, and it is desirable to efficiently manage contents by efficiently performing these work and processes.

In view of the above problems, an object of the present invention is to provide a content management system, a content management method, and a program capable of improving the efficiency of content management.

In order to solve the above-described problems, a content management system according to an aspect of the present invention includes an acquisition unit that acquires performance information indicating the performance of a client device that displays content using 3DCG (3 Dimensional Computer Graphics); a determination unit that determines whether or not to cause the client device to execute rendering for generating the content based on the acquired performance information; and selecting to transmit the content generated by rendering the content information to the client device if the rendering is not executed by the client device. and a rendering control unit.

A content management method according to an aspect of the present invention includes an acquisition step in which an acquisition unit acquires performance information indicating performance of a client device that displays content using 3DCG (3 Dimensional Computer Graphics); a determination step of determining whether or not to cause the client device to execute rendering for generating the content based on the acquired performance information; If it is selected to transmit content information indicating information about content to the client device and the rendering is not executed by the client device, the content generated by rendering the content information is transmitted to the client device. and a rendering control process that selects.

A program according to an aspect of the present invention comprises an acquisition means for acquiring performance information indicating performance of a client device that causes a computer to display content using 3DCG (3 Dimensional Computer Graphics); determining means for determining whether or not to cause the client device to execute rendering for generating the content; and content information indicating information about the content to the client device when the rendering is to be executed by the client device. and rendering control means for selecting to transmit the content generated by rendering the content information to the client device when the transmission is selected and the rendering is not executed by the client device. .

According to the present invention, it is possible to improve the efficiency of content management.

It is a block diagram showing an example of composition of a contents management system concerning this embodiment. It is a block diagram showing an example of the functional configuration of a content management server according to the present embodiment. It is a figure which shows an example of the data structure of the content information which concerns on this embodiment. It is a figure which shows an example of the model with which the division|segmentation information which concerns on this embodiment was provided. It is a figure which shows an example of the model divided|segmented based on this embodiment. It is a figure which shows an example of the model divided|segmented based on this embodiment. It is a figure which shows an example of the model divided|segmented based on this embodiment. FIG. 10 is a diagram showing an example of display of edit history information indicating layout positions of models according to the embodiment; It is a figure which shows an example of the layout position change of the model based on the edit log information which concerns on this embodiment. FIG. 7 is a diagram showing an example of display of edit history information indicating the texture of an object according to the embodiment; FIG. 7 is a diagram showing an example of texture change of an object based on edit history information according to the embodiment; 3 is a block diagram showing an example of the functional configuration of a rendering server according to the embodiment; FIG. FIG. 4 is a sequence diagram showing an example of the flow of processing in the content management system according to this embodiment; 9 is a flowchart showing an example of the flow of disclosure restriction confirmation processing according to the present embodiment; 4 is a sequence diagram showing an example of the flow of display processing according to the embodiment; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<1. Configuration of Content Management System>
The configuration of a content management system 1 according to this embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing an example of the configuration of a content management system 1 according to this embodiment.

(1) Content management system 1
The content management system 1 is a system in which a server manages content information indicating information about content, and registers, edits, and displays content (content information) in response to requests from clients.

The content is, for example, content using 3DCG (3 Dimensional Computer Graphics).
A content consists of at least one scene. A scene may be an empty scene in which no model is placed, or a scene in which one or more models are placed. A model is an object (virtual object) that is a virtual reproduction of an object using 3DCG. A model is composed of at least one object, and may be composed of a collection of a plurality of objects. Objects are parts that make up a model. Objects may also be organized as a collection of sub-objects. Sub-objects are objects that make up an object. A texture (hereinafter also referred to as “material”) can be set for the model. The texture of the model can also be set for each object.
Contents are managed, for example, on a project-by-project basis. That is, one content is managed as one project, and the project includes scenes, models, objects, and materials.

Content information is information including project information, scene information, model information, object information, and material information (that is, texture information). The project information indicates information about project settings. The scene information indicates information for each scene that constitutes the content. For example, the scene information indicates information related to model placement such as position, rotation, and scale, lighting information, background, initial camera position, post-effect information, and the like. The model information indicates information about virtual objects used in the scene. The material information indicates information about the texture set for the model.

Each piece of information may include disclosure restriction information indicating information regarding disclosure restriction and authority information indicating authority regarding each information. The disclosure restriction information is information including, for example, information indicating the disclosure range, disclosure deadline or disclosure period of each piece of information, successor designation information, and the like. Successor designation information is information that designates a disclosure target that succeeds a disclosure target whose disclosure deadline has passed. The authority information includes editing authority and usage authority for each information.
In this embodiment, as an example, it is assumed that the project information, model information, and material information include disclosure restriction information and authority information. That is, it shall be possible to designate successors for projects, models, and materials. In the case of project information, the disclosure restriction information indicates the disclosure restriction of the project, and the authorization information indicates various authorizations for the project. In the case of model information, the access restriction information indicates access restrictions of the model, and the authority information indicates various authorities for the model. In the case of material information, the publication restriction information indicates the publication restrictions of the material, and the rights information indicates various rights to the material.

The model information may be provided with division information indicating groups into which the model is divided. Groups into which models are divided are, for example, static groups and dynamic groups. A model classified into a static group is a model whose placement position in the content is fixed and whose placement position cannot be changed. A model classified into a dynamic group is a model whose placement position in the content is not fixed and whose placement position can be changed.

As shown in FIG. 1, the content management system 1 includes an editing terminal 10, a high performance display terminal 11, a low performance display terminal 12, a content management server 20, and a rendering server 30. The editing terminal 10, the high-performance display terminal 11, and the low-performance display terminal 12 are examples of client devices. The content management server 20 and the rendering server 30 are examples of server devices.
The content management server 20 is communicably connected to the editing terminal 10, the high-performance display terminal 11, the low-performance display terminal 12, and the rendering server 30 via the network NW. Also, the rendering server 30 is communicably connected to the high-performance display terminal 11, the low-performance display terminal 12, and the content management server 20 via the network NW.

(2) Editing terminal 10
The editing terminal 10 is a client device (first client device) used for editing content. The editing terminal 10 includes an input device (mouse, keyboard, touch panel, etc.), an output device (display, speaker, etc.), a central processing unit, and the like. Any terminal such as a PC (Personal Computer), a smartphone, or a tablet may be used as the editing terminal 10, for example.
A user can operate the editing terminal 10 to register a model in the content management server 20 . Further, the user can operate the editing terminal 10 to display the content information managed by the content management server 20 on the editing terminal 10 and edit the content information.

(3) High performance display terminal 11
The high-performance display terminal 11 is a client device (second client device) used for displaying content. The high-performance display terminal 11 is an example of a client device with high processing performance. The high-performance display terminal 11 includes an input device (mouse, keyboard, touch panel, etc.), an output device (display, speaker, etc.), a central processing unit, and the like. Any terminal such as a PC (Personal Computer), a smart phone, or a tablet may be used as the high-performance display terminal 11, for example.
A user can operate the high-performance display terminal 11 to display content managed by the content management server 20 on the high-performance display terminal 11 and view the content.

(4) Low performance display terminal 12
The low-performance display terminal 12 is a client device (second client device) used for displaying content. The low-performance display terminal 12 is an example of a client device with low processing performance. The low-performance display terminal 12 includes an input device (mouse, keyboard, touch panel, etc.), an output device (display, speaker, etc.), a central processing unit, and the like. Any terminal such as a PC (Personal Computer), a smartphone, or a tablet may be used as the low-performance display terminal 12, for example.
The user can operate the low-performance display terminal 12 to display content managed by the content management server 20 on the low-performance display terminal 12 and view the content.

(5) Content management server 20
The content management server 20 is a server device for managing content. The content management server 20 has a central processing unit and optionally an input device (mouse, keyboard, touch panel, etc.) and an output device (display, speaker, etc.). The content management server 20 is realized by, for example, a computer installed in a data center, but may be realized by a PC.
The content management server 20 manages content information according to input from the editing terminal 10 . Also, the content management server 20 controls display of content according to inputs from the high-performance display terminal 11 and the low-performance display terminal 12 .

(6) Rendering server 30
The rendering server 30 is a server device for rendering. The rendering server 30 has a central processing unit and optionally an input device (mouse, keyboard, touch panel, etc.) and an output device (display, speaker, etc.). The rendering server 30 is implemented, for example, by a computer installed in a data center, but may be implemented by a PC.
The rendering server 30 controls rendering and transmission of content to the high-performance display terminal 11 and the low-performance display terminal 12 according to the input from the content management server 20 .

<2. Functional Configuration of Content Management Server>
The configuration of the content management system 1 according to this embodiment has been described above. Next, with reference to FIG. 2, the functional configuration of the content management server 20 according to this embodiment will be described. FIG. 2 is a block diagram showing an example of the functional configuration of the content management server 20 according to this embodiment.
As shown in FIG. 2 , the content management server 20 includes a communication section 210 , an input section 220 , a storage section 230 , a control section 240 and an output section 250 .

(1) Communication unit 210
The communication unit 210 has a function of transmitting and receiving various information. For example, the communication unit 210 communicates with the editing terminal 10, the high-performance display terminal 11, the low-performance display terminal 12, and the rendering server 30 via the network NW.
In communication with the editing terminal 10, the communication unit 210 receives model information, a content editing request, editing information indicating content editing details, and the like. The communication unit 210 transmits a content editing screen in communication with the editing terminal 10 .
The communication unit 210 receives a content display request, performance information indicating the performance of each of the high-performance display terminal 11 and the low-performance display terminal 12, and the like in communication with the high-performance display terminal 11 and the low-performance display terminal 12. FIG. The communication unit 210 performs data communication for confirming the communication environment in communication with the high-performance display terminal 11 and the low-performance display terminal 12 .

(2) Input unit 220
Input unit 220 has a function of receiving an input. For example, the input unit 220 receives input from the editing terminal 10, the high-performance display terminal 11, or the low-performance display terminal 12, which the communication unit 210 receives via the network NW. In addition, if the content management server 20 includes an input device such as a mouse, keyboard, or touch panel as hardware, the input unit 220 may receive information input by the input device.

(3) Storage unit 230
The storage unit 230 has a function of storing various information. The storage unit 230 is a storage medium provided as hardware in the content management server 20, for example, a HDD (Hard Disk Drive), SSD (Solid State Drive), flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), RAM (Random Access Memory). read/write memory), ROM (Read Only Memory), or any combination of these storage media.

The storage unit 230 stores content information. For example, the storage unit 230 associates corresponding model information with each scene information, and associates corresponding material information with each model information, and stores them. When there is object information corresponding to the model information, the storage unit 230 associates the object information corresponding to the model information, and associates and stores the material information corresponding to each object information.

The storage unit 230 also stores editing history information. The editing history information is information indicating the editing history of content. The editing history information includes, for example, placement history and texture history. The storage unit 230 stores, as editing history information, a placement history indicating a history of positions at which models have been placed in a scene. The storage unit 230 also stores a texture history indicating a texture history set for the model as editing history information. The storage unit 230 stores a texture history for each object forming a model.

Here, the data configuration of content information will be described with reference to FIG. FIG. 3 is a diagram showing an example of the data structure of content information according to this embodiment.
As shown in FIG. 3, the content information consists of project information, scene information, model information, object information, and material information. FIG. 3 shows only identification information of each information as an example.

A plurality of pieces of project information are registered in the content information shown in FIG. Specifically, "PJ001" and "PJ002" are shown as project information. Project information is associated with a plurality of pieces of scene information. Specifically, "PJ001" is associated with "SC001" and "SC002". Scene information is associated with a plurality of pieces of model information. Specifically, "SC001" is associated with "MD001" and "MD002". A plurality of pieces of object information are associated with model information. Specifically, "MD001" is associated with "OB001" and "OB002". "MD002" is associated with "OB011" and "OB012". Object information is associated with material information. Specifically, "OB001" is associated with "MT001". "OB002" is associated with "MT002". "OB011" is associated with "MT011". "OB012" is associated with "MT012".
When an object is composed of sub-objects, "OB001", "OB002", "OB011", "OB012", etc. are further associated with sub-objects.

(4) Control unit 240
The control unit 240 has a function of controlling the overall operation of the content management server 20 . The control unit 240 is implemented, for example, by causing a CPU (Central Processing Unit) provided as hardware in the content management server 20 to execute a program.
As shown in FIG. 2 , the control unit 240 includes an acquisition unit 241 , an editing unit 242 , a determination unit 243 , a rendering control unit 244 and an output control unit 245 .

(4-1) Acquisition unit 241
The acquisition unit 241 has a function of acquiring various types of information. The acquisition unit 241 acquires various types of information from the client device and the storage unit 230 .

For example, the acquisition unit 241 acquires content information. Specifically, the acquisition unit 241 acquires model information and editing information from the editing terminal 10 via the communication unit 210 . The acquired model information includes information on the model used for the content. The model information may be associated in advance with object information indicating the objects that constitute the model. The acquired editing information includes scene information of the scene in which the model indicated by the acquired model information is arranged, project information of the project using the scene, material information indicating the material set for the model, and the like.
The obtaining unit 241 writes the obtained model information and editing information to the storage unit 230 as content information and stores the content information.

In addition, the acquisition unit 241 acquires model disclosure restriction information included in the content to be displayed on the high-performance display terminal 11 and the low-performance display terminal 12 . Specifically, the acquisition unit 241 acquires model disclosure restriction information from the model information stored in the storage unit 230 . For example, the acquisition unit 241 acquires disclosure restriction information during disclosure restriction confirmation processing, which will be described later.

Also, the acquisition unit 241 acquires performance information of the client device that displays the content. Specifically, the acquisition unit 241 acquires the performance information of each terminal from the high-performance display terminal 11 and the low-performance display terminal 12 via the communication unit 210 . The acquisition unit 241 acquires performance information, for example, during display processing, which will be described later.

The acquisition unit 241 also acquires communication environment information indicating the communication environment of the client device that displays the content. Specifically, the acquisition unit 241 causes the communication unit 210 to perform data communication with the high-performance display terminal 11 and the low-performance display terminal 12 to confirm the communication environment. Acquisition unit 241 acquires the result of the data communication as communication environment information. The communication environment information indicates, for example, communication speed, data transmission time, and the like.

(4-2) Editor 242
The editing unit 242 has a function of editing content. The editing unit 242 edits the content by editing each piece of information included in the content information according to the input from the editing terminal 10 (that is, the editing information).

In editing the project information, the editing unit 242 sets disclosure restriction information such as a project disclosure range and disclosure period, sets authority information such as editing authority, and sets scenes included in the project. In setting the scenes, the editing unit 242 determines the scenes to be included in the project and their order.
In editing the scene information, the editing unit 242 sets the camera, background, lights, etc. of the scene, sets the model used in the scene, and the like. In camera settings, the editing unit 242 sets the camera position, target position, FOV (Field Of View), depth recognition range, and the like. In the model setting, the editing unit 242 adds a model to be used, and sets the layout position, rotation, scale, and the like of the model.
In editing model information, the editing unit 242 sets publication restriction information such as a model publication period, sets authority information such as model editing authority and usage authority, and sets model materials. In setting the material of the model, specifically, the material set by editing the material information can be assigned to each object in the model.
In editing the material information, the editing unit 242 sets disclosure restriction information such as the disclosure range and disclosure period of the material, and sets the material. In material setting, the editing unit 242 sets reflectance, shader type, transparency, base color, base color texture, UV size, UV offset, metallic effect, and the like.

When division information is added to the model, the editing unit 242 divides the model into a plurality of models based on the division information.
For example, assume that the model is a model composed of a plurality of objects, and that there is an object to which division information has been added. In this case, the editing unit 242 divides the object to which the division information is assigned from the model, and stores the divided object in the storage unit 230 as a unit model corresponding to the group indicated by the division information.
This eliminates the need for the user to divide the created model by himself/herself, thereby reducing the content management load and production load.

In this embodiment, as an example, division information indicates information indicating a static group (hereinafter also referred to as a “static label”) or information indicating a dynamic group (hereinafter also referred to as a “dynamic label”). shall be In this case, the editing unit 242 divides the model into static labeled objects and dynamic labeled objects.
The editing unit 242 collectively stores the static labeled objects in the storage unit 230 as one unit model. The editing unit 242 causes the storage unit 230 to store the objects to which the Dynamic labels are assigned as individual unit models.

Here, specific examples of model division will be described with reference to FIGS. 4 to 7. FIG. FIG. 4 is a diagram showing an example of a model given division information according to this embodiment. 5 to 7 are diagrams showing examples of divided models according to this embodiment.

A room model 40 shown in FIG. 4 is composed of a plurality of objects including a room object 41 , a chest object 42 , a table object 43 and a chair object 44 .
A static label is given to the room object 41 and the chest object 42 , and a dynamic label is given to the table object 43 and the chair object 44 . Therefore, the editing unit 242 divides the room model 40 shown in FIG. 4 into the room model 40a (including the room object 41 and the chest object 42) shown in FIG. ) and a chair model 40c (including only the chair object 44) shown in FIG.
That is, the editing unit 242 causes the storage unit 230 to store the room object 41 and the wardrobe object 42 to which the static label is assigned as one model composed of a plurality of objects. Also, the editing unit 242 causes the storage unit 230 to store the table object 43 and the chair object 44 to which the Dynamic label is assigned as one model.

The editing section 242 may edit the content based on information selected from the editing history information stored in the storage section 230 . For example, when the editing history information of the information to be edited exists in the storage unit 230, the editing unit 242 causes the editing terminal 10 to display the editing history information. As an example, the editing unit 242 displays the layout history in a translucent or colored frame, and displays the texture history in a list form. When the user selects any of the editing history information displayed on the editing terminal 10, the editing unit 242 edits the editing target according to the content indicated by the selected editing history information.

When the layout history of the model is displayed on the editing terminal 10 as editing history information, the editing unit 242 moves the model to a position selected from the positions indicated by the displayed layout history.
When the texture history of the model is displayed on the editing terminal 10 as editing history information, the editing unit 242 sets the texture selected from the textures indicated by the displayed texture history to the model.
When the texture history of the object is displayed on the editing terminal 10 as editing history information, the editing unit 242 sets the texture selected from the textures indicated by the displayed texture history to the object.
This allows the user to intuitively grasp the editing history of models and objects. In addition, since the user can edit the model or object simply by selecting the displayed history, the content production load can be reduced.

Here, a specific example of changing the layout position of the model based on the editing history information will be described with reference to FIGS. 8 and 9. FIG. FIG. 8 is a diagram showing an example of a display of edit history information indicating the arrangement positions of models according to this embodiment. FIG. 9 is a diagram showing an example of model layout position change based on edit history information according to the present embodiment.
For example, it is assumed that a room model 40a shown in FIG. 5, a table model 40b shown in FIG. 6, and a chair model 40c shown in FIG. 7 obtained by dividing the room model 40 shown in FIG. . By editing the scene information, these divided models can be rearranged as a scene. For example, when the chair model 40c arranged in the scene 50 is selected by editing the scene information, the arrangement histories PH1 and PH2 of the chair model 40c are displayed as shown in FIG. When, for example, the placement history PH1 is selected from among the displayed placement histories, the chair model 40c is moved to the position of the placement history PH1 in the scene 50 as shown in FIG.

Here, a specific example of changing the texture of an object based on edit history information will be described with reference to FIGS. 10 and 11. FIG. FIG. 10 is a diagram showing an example of display of edit history information indicating the texture of an object according to this embodiment. FIG. 11 is a diagram showing an example of texture change of an object based on edit history information according to the present embodiment.
In editing the model information, for example, setting materials for each object constituting the room model 40 shown in FIG. 4, the room model 40a shown in FIG. 5, the table model 40b shown in FIG. 6, and the chair model 40c shown in FIG. can be changed. For example, when the seat surface of the chair model 40c arranged in the scene 50 is selected by editing the model information, the texture history of the seat surface of the chair model 40c is listed in the balloon 45 as shown in FIG. Is displayed. Four texture histories MH1 to MH4 are displayed in the balloon 45 . When, for example, the texture history MH1 is selected from the displayed texture histories, the texture of the seat surface of the chair model 40c is changed to the texture of the texture history MH1, as shown in FIG.

(4-3) Determination unit 243
The determination unit 243 has a function of making various determinations. For example, the determination unit 243 determines whether or not there is a release target whose release time limit has passed, among the release targets included in the content, based on the release restriction information. Specifically, when there is a display request from the high-performance display terminal 11 and the low-performance display terminal 12, the determination unit 243 acquires the date and time of the request (hereinafter also referred to as “request date and time”), and The date and time are compared with the disclosure period or disclosure deadline indicated by the disclosure restriction information of each disclosure target acquired by the acquisition unit 241 . As a result of the comparison, if there is a disclosure deadline before the requested date and time, the determination unit 243 determines that there is a disclosure target whose disclosure deadline has passed. On the other hand, if there is no disclosure deadline before the requested date and time, the determination unit 243 determines that there is no disclosure target whose disclosure deadline has passed.

The determination unit 243 also determines whether or not to cause the client device to execute rendering for generating content based on the performance information. Specifically, the determination unit 243 compares the performance information of the client device acquired by the acquisition unit 241 with the performance condition when a display request is received from the client device. The performance conditions are, for example, the model number of the CPU, the model number of the GPU (Graphics Processing Unit), the amount of installed memory, and the like. As a result of the comparison, when the performance of the client device satisfies the performance condition, the determination unit 243 determines to cause the client device to execute rendering. On the other hand, when the performance of the client device does not satisfy the performance condition, the determination unit 243 determines not to cause the client device to execute rendering.
In this embodiment, it is assumed that the performance of the high-performance display terminal 11 satisfies the performance condition, and the performance of the low-performance display terminal 12 does not satisfy the performance condition.

The determination unit 243 may determine whether or not to cause the client device to execute rendering based on the communication environment information in addition to the performance information. Specifically, the determination unit 243 compares the communication environment information acquired by the acquisition unit 241 with the communication conditions when there is a display request from the client device. As a result of the comparison, if the communication environment of the client device satisfies the communication condition, the determination unit 243 determines not to cause the client device to execute rendering. On the other hand, when the communication environment of the client device does not satisfy the communication conditions, the determination unit 243 determines to cause the client device to execute rendering.
The communication condition is, for example, that the data transmission delay time is equal to or less than a predetermined threshold.

(4-4) Rendering Control Unit 244
The rendering control unit 244 functions to control rendering. For example, the rendering control unit 244 controls execution of rendering according to the determination result of the determination unit 243 . For example, if the determination result indicates that rendering should be performed by the client device, the rendering control unit 244 selects to transmit the content information to the client device and perform rendering on the client device side. In this case, the rendering control unit 244 selects, for example, rendering the client device using WebGL (Web Graphics Library). Note that the rendering control unit 244 may cause the client device to perform rendering using a client application other than WebGL.
As a result, when the user uses a client device having performance (high performance) capable of executing rendering, the user can render and display content using 3DCG on his or her own client device. Rendering on the client device side eliminates the need for rendering on the server side, which also reduces the cost of the server.

On the other hand, if the determination result indicates that the rendering is not to be executed by the client device, the rendering control unit 244 selects to transmit the content generated by rendering the content information to the client device. In this case, the rendering control unit 244 selects executing rendering on the rendering server 30 (on the server device side) and streaming the content generated by the rendering by the rendering server 30 to the client device.
As a result, if the user is using a client device having performance (low performance) that makes rendering difficult, for example, content using 3DCG is rendered on the server side and then transmitted to the client device side. Therefore, even if the user is using a client device having performance that makes rendering difficult, the user can display and check the content rendered on the server side on the client device.

(4-5) Output control unit 245
The output control unit 245 has a function of controlling various displays. For example, the output control unit 245 controls display of content. Specifically, the output control unit 245 causes the client device to display the content generated based on the content information in accordance with the input from the client device used for displaying the content. More specifically, assume that the rendering control unit 244 selects to transmit the content information to the client device. In this case, the output control unit 245 transmits the content information to the client device via the communication unit 210, and causes the client device to perform rendering and display of the content. It is also assumed that the rendering control unit 244 selects to stream the content generated by rendering to the client device. In this case, the output control unit 245 transmits content information, rendering requests, and streaming requests to the rendering server 30 via the communication unit 210 . Accordingly, the output control unit 245 causes the rendering server 30 to execute rendering and streaming to transmit the content to the client device.

Also, the output control unit 245 controls display of the editing history information. For example, when one of the models arranged in the scene is selected for editing, the output control unit 245 causes the editing terminal 10 to display the arrangement history and texture history of the selected model. When any of the objects forming the model selected as the editing target is selected as the editing target, the output control unit 245 causes the editing terminal 10 to display the texture history of the selected object.

In addition, the output control unit 245 controls the display of disclosure targets whose disclosure deadline has passed. An object of publication can be a project, a model, or a material. In this embodiment, an example in which the output control unit 245 controls the display of the model based on the successor designation information will be described.
When there is a model whose publication deadline has passed, the output control unit 245 does not display the model whose publication deadline has passed, and displays a model different from the model whose publication deadline has passed. display in position. At this time, the output control unit 245 searches for a model having successor designation information indicating that the model is designated as the successor model to be displayed next to the model whose publication time limit has passed. If there is a successor model, the output control unit 245 causes the successor model to be displayed as a different model at the position of the model whose publication time limit has passed. On the other hand, if there is no successor model, the output control unit 245 selects a shared model (hereinafter, also referred to as a “fallback model”) that can be shared by all the models whose publication deadline has passed, as a different model whose publication deadline has passed. Make it appear at the position of the passing model.
There may be multiple types of fallback models, and the type of fallback model to be displayed may be selected for each model.

As a result, when the model in the content is not to be published because the publication deadline has passed, it is possible to prevent nothing from being displayed where the model is to be displayed. Therefore, it is possible to prevent the content from failing to be established as content, and to prevent the user experience from being impaired.

(5) Output unit 250
The output unit 250 has a function of outputting various information. When the content management server 20 is provided with an output device such as a display device such as a display or a touch panel and an audio output device such as a speaker as hardware, the output unit 250 responds to the input from the output control unit 245 to display, for example, a screen or audio. etc., can be output.

<3. Functional Configuration of Rendering Server>
The functional configuration of the content management server 20 according to this embodiment has been described above. Next, with reference to FIG. 12, the functional configuration of the rendering server 30 according to this embodiment will be described. FIG. 12 is a block diagram showing an example of the functional configuration of the rendering server 30 according to this embodiment.
As shown in FIG. 12 , the rendering server 30 includes a communication section 310 , an input section 320 , a storage section 330 , a control section 340 and an output section 350 .

(1) Communication unit 310
The communication unit 310 has a function of transmitting and receiving various information. For example, the communication unit 310 communicates with the high-performance display terminal 11, the low-performance display terminal 12, and the content management server 20 via the network NW. The communication unit 310 receives content information, rendering requests, and streaming requests in communication with the content management server 20 . The communication unit 310 transmits content in communication between the high performance display terminal 11 and the low performance display terminal 12 .

(2) Input unit 320
Input unit 320 has a function of receiving an input. For example, the input unit 320 receives input from the content management server 20 that is received by the communication unit 310 via the network NW. Further, when the rendering server 30 includes an input device such as a mouse, keyboard, or touch panel as hardware, the input unit 320 may receive input of information input by the input device.

(3) Storage unit 330
The storage unit 330 has a function of storing various information. The storage unit 330 is configured by a storage medium provided as hardware in the rendering server 30, such as an HDD, SSD, flash memory, EEPROM, RAM, ROM, or any combination of these storage media.
The storage unit 330 stores content information received by the communication unit 310 from the content management server 20, for example.

(4) Control unit 340
The control unit 340 has a function of controlling the overall operation of the rendering server 30 . The control unit 340 is implemented, for example, by causing a CPU provided as hardware in the rendering server 30 to execute a program.
As shown in FIG. 12 , the control unit 340 includes an acquisition unit 341 , a rendering unit 342 and an output control unit 343 .

(4-1) Acquisition unit 341
The acquisition unit 341 has a function of acquiring various types of information. For example, the acquisition unit 341 acquires content information, rendering requests, and streaming requests from the content management server 20 via the communication unit 310 .

(4-2) Rendering unit 342
The rendering unit 342 has a function of rendering. For example, the rendering unit 342 performs rendering based on the content information acquired by the acquisition unit 341 to generate content.

(4-3) Output control unit 343
The output control unit 343 has a function of outputting content. For example, the output control unit 343 outputs the content generated by the rendering unit 342 to the client device used for displaying the content.

(5) Output section 350
The output unit 350 has a function of outputting various information. When the rendering server 30 includes hardware such as a display device such as a display or a touch panel and an output device such as an audio output device such as a speaker, the output unit 350 outputs, for example, a screen or audio according to an input from the output control unit 343. may be output.

<4. Process Flow>
The functional configuration of the rendering server 30 according to this embodiment has been described above. Next, the flow of processing according to the present embodiment will be described with reference to FIGS. 13 to 15. FIG.

(1) Flow of Processing in Content Management System 1 First, the flow of processing in the content management system 1 will be described with reference to FIG. FIG. 13 is a sequence diagram showing an example of the flow of processing in the content management system 1 according to this embodiment.

As shown in FIG. 13, first, the editing terminal 10 uploads a model to the content management server 20 according to user's operation (step S101). Specifically, the editing terminal 10 transmits the model information of the model to be uploaded to the content management server 20 .
The content management server 20 stores the model uploaded by the editing terminal 10 (step S102). Specifically, the acquisition unit 241 acquires the model information received by the communication unit 210 from the editing terminal 10, and writes the model information to the storage unit 230 for storage.

The editing terminal 10 transmits content editing information to the content management server 20 according to the user's operation (step S103).
The content management server 20 edits the content based on the editing information transmitted from the editing terminal 10 (step S104). Specifically, the editing unit 242 generates content information based on the editing information.
The content management server 20 then stores the content information (step S105). Specifically, the editing unit 242 writes and stores the content information generated by editing in the storage unit 230 .

The high-performance display terminal 11 and the low-performance display terminal 12 transmit a content display request to the content management server 20 (step S106).
Upon receiving the display request, the content management server 20 executes disclosure restriction confirmation processing (step S107). Details of the access restriction confirmation process will be described later.
Next, the content management server 20 and the rendering server 30 execute display processing (step S108). Details of the display processing will be described later.

(2) Flow of Access Restriction Confirmation Processing Next, the flow of access restriction confirmation processing will be described with reference to FIG. FIG. 14 is a flowchart showing an example of the flow of disclosure restriction confirmation processing according to the present embodiment.

As shown in FIG. 14, first, the communication unit 210 of the content management server 20 receives a content display request (step S201). For example, assume that the communication unit 210 receives a display request for scene SC011 on January 2 (request date and time). As shown in FIG. 14, scene SC011 is a scene in which model MD011 and model MD012 are arranged.

Next, the acquisition unit 241 of the content management server 20 acquires the model's disclosure restriction information (step S202). Specifically, the acquisition unit 241 acquires from the storage unit 230 the information on restriction of publication of the model included in the content for which the display request has been made.
In the case of the example shown in FIG. 14, the obtaining unit 241 obtains from the storage unit 230 the disclosure restriction information of the model MD011 and the model MD012.

Next, the determination unit 243 of the content management server 20 checks the publication deadline of the model (step S203). Specifically, the determination unit 243 confirms the release deadline of the model from the release restriction information acquired by the acquisition unit 241 .
In the example shown in FIG. 14, both the model MD011 and the model MD012 have a release deadline of January 1st. Accordingly, the determination unit 243 compares the request date and time with the disclosure deadline, and determines that the request date and time has passed the disclosure deadline of the model MD011 and the model MD012. In other words, the determination unit 243 determines that the model MD011 and the model MD012 are models whose disclosure deadline has passed.

Next, the output control unit 245 of the content management server 20 searches for a successor model (step S204). Specifically, the output control unit 245 searches the storage unit 230 for a model having successor designation information indicating that the model has been designated as a successor model to a model whose publication time limit has passed.
In the example shown in FIG. 14, the output control unit 245 searches the storage unit 230 for a model having successor designation information indicating that it is designated as a successor model to the model MD011 and the model MD012.

Next, the output control unit 245 confirms whether or not there is a successor model (step S205). If there is a successor model (step S205/YES), the output control unit 245 advances the process to step S206. On the other hand, if there is no successor model (step S205/NO), the output control unit 245 advances the process to step S207.
In the example shown in FIG. 14, the model MD021 is set as the successor model of the model MD011, but the model set as the successor model of the model MD012 does not exist in the storage unit 230 . Therefore, the output control unit 245 advances the process to step S206 for the model MD011, and advances the process to step S207 for the model MD012.

When the process proceeds to step S206, the output control unit 245 displays the successor model (step S206). Specifically, the output control unit 245 arranges and displays a successor model in place of the model whose publication deadline has passed, at the position where the model whose publication deadline has passed has passed.
In the case of the example shown in FIG. 14, the output control unit 245 arranges and displays the model MD021, which is the successor model, instead of the model MD011 whose publication time limit has passed, at the arrangement position of the model MD011 in the scene SC011.

When the process proceeds to step S207, the output control unit 245 displays the fallback model. (Step S207). Specifically, the output control unit 245 arranges and displays the fallback model instead of the model whose publication deadline has passed, at the layout position of the model whose publication deadline has passed.
In the case of the example shown in FIG. 14, the output control unit 245 arranges and displays the fallback model FBMD001 instead of the model MD012 whose publication time limit has passed at the arrangement position of the model MD012 in the scene SC011.

(3) Flow of Display Processing Next, the flow of display processing will be described with reference to FIG. FIG. 15 is a sequence diagram showing an example of the flow of display processing according to this embodiment.

As shown in FIG. 15, first, the acquisition unit 241 of the content management server 20 acquires performance information (step S301). Specifically, the acquisition unit 241 transmits a performance information acquisition request to the high-performance display terminal 11 and the low-performance display terminal 12 that have transmitted the display request.
The high-performance display terminal 11 and the low-performance display terminal 12 that have received the acquisition request transmit the performance information to the content management server 20 (step S302).

Next, based on the performance information acquired by the acquisition unit 241, the determination unit 243 of the content management server 20 determines whether the performance of the high performance display terminal 11 and the low performance display terminal 12 satisfies the performance condition (step). S303).
If the performance condition is satisfied (step S303/YES), the process proceeds to step S304. On the other hand, if the performance condition is not satisfied (step S303/NO), the process proceeds to step S309. When proceeding to step S<b>309 , the output control unit 245 transmits content information, a rendering request, and a streaming request to the rendering server 30 via the communication unit 210 .
In the following description, the performance of the high-performance display terminal 11 satisfies the performance condition, so the process proceeds to step S304, and the performance of the low-performance display terminal 12 does not satisfy the performance condition, so the process proceeds to step S309. do.

When the process proceeds to step S304, the acquisition unit 241 acquires communication environment information (step S304). Specifically, the acquisition unit 241 causes the communication unit 210 to perform data communication with the high-performance display terminal 11 to confirm the communication environment. Acquisition unit 241 acquires the result of the data communication as communication environment information.

Next, the determination unit 243 determines whether or not the communication environment of the high-performance display terminal 11 satisfies the communication conditions based on the communication environment information acquired by the acquisition unit 241 (step S305).
If the communication condition is satisfied (step S305/YES), the process proceeds to step S309. On the other hand, if the communication conditions are not satisfied (step S305/NO), the process proceeds to step S306.

When the process proceeds to step S306, the output control unit 245 transmits the content information to the high performance display terminal 11 via the communication unit 210 (step S306). This is because the rendering control unit 244 selects transmission of the content information to the high-performance display terminal 11, that is, causes the high-performance display terminal 11 to execute rendering, based on the determination result of the determination unit 243. FIG.

Next, the high-performance display terminal 11 renders the content information received from the content management server 20 to generate content (step S307).
Then, the high-performance display terminal 11 displays the content generated by rendering (step S308).

When the process proceeds to step S309, the rendering server 30 renders the content information (step S309). Specifically, the acquisition unit 341 of the rendering server 30 acquires the content information received by the communication unit 310 from the content management server 20 . The rendering unit 342 of the rendering server 30 renders the content information acquired by the acquisition unit 341 to generate content.

Next, the output control unit 343 of the rendering server 30 streams the generated content to the client device via the communication unit 310 (step S310). For example, when the process proceeds from step S303 to steps S309 and S310, the output control unit 343 streams the content to the low-performance display terminal 12. FIG. When the process proceeds from step S305 to steps S309 and S310, the output control unit 343 streams the content to the high-performance display terminal 11. FIG.
Then, the low-performance display terminal 12 displays the content received by streaming from the rendering server 30 (step S311).

As described above, the content management system 1 according to this embodiment includes the storage section 230 , the editing section 242 and the output control section 245 .
The storage unit 230 stores scene information indicating information for each scene constituting content using 3DCG (3 Dimensional Computer Graphics), model information indicating information for each model used in the scene, and texture set for the model. model information corresponding to each scene information and texture information corresponding to each model information are stored.
The editing unit 242 edits each piece of information included in the content information according to the input from the first client device used for editing the content.
The output control unit 245 causes the second client device to display the content generated based on the content information in accordance with the input from the second client device used for displaying the content.

Such a configuration allows the user to partially edit the content. Therefore, the user does not have to recreate the content itself from scratch every time the data used in the content is added or changed. As a result, when content is managed by a server, it is possible to reduce the production load of content on the user.
In addition, when content is partially edited, the amount of data to be sent to the server is smaller than when content is recreated from scratch, so the time required to upload data can be shortened.
Therefore, the content management system 1 allows the user to efficiently perform work and processes necessary for managing content on the server.

Therefore, the content management system 1 including the storage unit 230, the editing unit 242, and the output control unit 245 according to this embodiment can improve the efficiency of content management.

The content management system 1 also includes an acquisition unit 241 , a determination unit 243 and a rendering control unit 244 .
The acquisition unit 241 acquires performance information indicating the performance of a client device that displays content using 3DCG (3 Dimensional Computer Graphics).
The determining unit 243 determines whether or not to cause the client device to execute rendering for generating content based on the acquired performance information.
The rendering control unit 244 selects to transmit content information indicating information about the content to the client device when rendering is to be performed by the client device, and generates content information by rendering when rendering is not to be performed by the client device. choose to send the requested content to the client device.

With such a configuration, if the user uses a client device having a performance capable of executing rendering, the user can render and display content using 3DCG on his or her client device. By performing rendering on the client device side, there is no need to perform rendering on the server side, so the cost of the server can be reduced. Also, if the user is using a client device that has performance that makes rendering difficult, for example, content using 3DCG is rendered on the server side and then transmitted to the client device side. Therefore, even if the user is using a client device having performance that makes rendering difficult, the user can display and check the content rendered on the server side on the client device.

Therefore, the content management system 1 including the acquisition unit 241, the determination unit 243, and the rendering control unit 244 according to this embodiment can improve the efficiency of content management.

<5. Variation>
The embodiments of the present invention have been described above. Next, modified examples of the embodiment of the present invention will be described. In addition, each modification described below may be applied to the embodiment of the present invention independently, or may be applied to the embodiment of the present invention in combination. Further, each modification may be applied instead of the configuration described in the embodiment of the invention, or may be additionally applied to the configuration described in the embodiment of the invention.

In the above-described embodiment, an example in which the output control unit 245 controls the display of the model based on the disclosure restriction information has been described, but the present invention is not limited to this example. As described above, restricted-to-public information is included in project information, model information, and material information. As such, there are restrictions on disclosure for projects and materials as well. Therefore, the output control unit 245 may control the display of projects and materials in the same manner as the control of the display of models, based on the disclosure restriction information.

When controlling the display of a project, first, the acquisition unit 241 acquires disclosure restriction information of the project included in the content to be displayed on the client device.
The determination unit 243 determines whether or not there is a project whose disclosure deadline has passed among the projects included in the content, based on the project disclosure restriction information.
If there is a project whose publication deadline has passed, the output control unit 245 does not display the project whose publication deadline has passed, and displays a project different from the project whose publication deadline has passed. At this time, the output control unit 245 searches for a project having successor designation information indicating that the project is designated as the next project to be displayed after the project whose disclosure deadline has passed. If there is a successor project, the output control unit 245 displays the successor project as a different project. On the other hand, if there is no successor project, the output control unit 245 displays a shared project (hereinafter also referred to as a “fallback project”) that can be shared by all projects whose disclosure deadlines have passed, as a different project.
There may be multiple types of fallback projects, and the type of fallback project to be reflected may be selected for each project.
The access restriction confirmation process for the project is performed in the same manner as the access restriction confirmation process for the model described with reference to FIG.

This prevents the project from being displayed at all when the project in the content is not subject to disclosure due to reasons such as the deadline for disclosure being passed. Therefore, it is possible to prevent the content from failing to be established as content, and to prevent the user experience from being impaired.

When controlling the display of materials, first, the acquisition unit 241 acquires disclosure restriction information of material information to be reflected in the model included in the content to be displayed on the client device.
The judging unit 243 judges whether or not there is any material information whose publication time limit has passed, among the material information reflected in the model included in the content, based on the publication restriction information of the material information.
If there is material information whose disclosure time limit has passed, the output control unit 245 does not reflect the material information whose disclosure time limit has passed. be reflected in At this time, the output control unit 245 searches for material information having successor designation information indicating that it is designated as successor material information to be reflected next to the material information whose publication time limit has passed. If the succeeding material information exists, the output control unit 245 reflects the succeeding material information on the object in the model as different material information. On the other hand, if there is no succeeding material information, the output control unit 245 sets common material information (hereinafter also referred to as “fallback material information”) that can be reflected to all objects in the model as different material information in the model. object.
Note that there may be a plurality of types of fallback material information, and the type of fallback material information to be reflected may be selected for each piece of material information.
The disclosure restriction confirmation process for material information is performed in the same manner as the disclosure restriction confirmation process for the model described with reference to FIG.

As a result, if the material information in the content is not subject to disclosure due to reasons such as the expiration date for disclosure, it is possible to prevent the material information from being reflected in the objects in the model that are scheduled to be reflected. can. Therefore, it is possible to prevent the content from failing to be established as content, and to prevent the user experience from being impaired.

The embodiments of the present invention have been described above. Part or all of the content management system 1, the content management server 20, or the rendering server 30 in the above-described embodiments may be realized by a computer. In that case, a program for realizing this function may be recorded in a computer-readable recording medium, and the program recorded in this recording medium may be read into a computer system and executed. It should be noted that the "computer system" referred to here includes hardware such as an OS and peripheral devices. The term "computer-readable recording medium" refers to portable media such as flexible discs, magneto-optical discs, ROMs and CD-ROMs, and storage devices such as hard discs incorporated in computer systems. Furthermore, "computer-readable recording medium" refers to a program that dynamically retains programs for a short period of time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. It may also include something that holds the program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or client in that case. Further, the program may be for realizing a part of the functions described above, or may be capable of realizing the functions described above in combination with a program already recorded in the computer system, It may be implemented using a programmable logic device such as an FPGA (Field Programmable Gate Array).

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configurations are not limited to those described above, and various design changes can be made without departing from the gist of the present invention. It is possible to

REFERENCE SIGNS LIST 1 content management system 10 editing terminal 11 high-performance display terminal 12 low-performance display terminal 20 content management server 30 rendering server 40, 40a room model 40b table model 40c Chair model 41... Room object 42... Chest object 43... Table object 44... Chair object 44a, 44b... Placement history 44c, 44d, 44e, 44f... Texture history 210... Communication unit 220... Input unit , 230 storage unit 240 control unit 241 acquisition unit 242 editing unit 243 determination unit 244 rendering control unit 245 output control unit 250 output unit 310 communication unit 320 Input unit 330 Storage unit 340 Control unit 341 Acquisition unit 342 Rendering unit 343 Output control unit 350 Output unit NW Network

In order to solve the above-described problems, a content management system according to an aspect of the present invention includes an acquisition unit that acquires performance information indicating the performance of a client device that displays content using 3DCG (3 Dimensional Computer Graphics); determining to cause the client device to execute rendering for generating the content when the performance of the client device satisfies a performance condition and is high-performance based on the acquired performance information; a determination unit that determines not to cause the client device to perform the rendering when the performance condition is not satisfied and the performance is low; When it is determined that the content information is transmitted to the client device , the content information is rendered on the client device side to generate the content , and the rendering is not executed by the client device, the a rendering control unit that selects transmission of the content generated by rendering the same content information on the server device side as when rendering on the client device side to the client device.

A content management method according to an aspect of the present invention includes an acquisition step in which an acquisition unit acquires performance information indicating performance of a client device that displays content using 3DCG (3 Dimensional Computer Graphics); determining to cause the client device to execute rendering for generating the content when the performance of the client device satisfies a performance condition and is high-performance based on the acquired performance information; a determination step of determining not to cause the client device to perform the rendering if the performance condition is not satisfied and the performance is low; selecting to generate the content by transmitting content information indicating information about the content to the client device, rendering the content information on the client device side , and determining not to cause the client device to execute the rendering; a rendering control process for selecting transmission to the client device of the content generated by rendering the same content information on the server device side as when rendering on the client device side .

A program according to an aspect of the present invention comprises an acquisition means for acquiring performance information indicating performance of a client device that causes a computer to display content using 3DCG (3 Dimensional Computer Graphics); determining to cause the client device to execute rendering for generating the content when the performance of the client device satisfies the performance condition and is high, and the performance of the client device does not satisfy the performance condition and is low. determining means for determining that the rendering is not to be executed by the client device if performance is satisfied; and content information indicating information about the content to the client device if it is determined that the rendering is to be executed by the client device. and rendering the content information on the client device side . and rendering control means for selecting transmission of the content generated by rendering the same content information on the server device side to the client device.

Claims (6)

an acquisition unit that acquires performance information indicating the performance of a client device that displays content using 3DCG (3 Dimensional Computer Graphics);
a determination unit that determines whether or not to cause the client device to execute rendering for generating the content based on the acquired performance information;
selecting to transmit content information indicating information about the content to the client device when causing the client device to perform the rendering, and rendering the content information when not causing the rendering to be performed by the client device; a rendering controller that selects to send the generated content to the client device;
A content management system comprising: The acquisition unit further acquires communication environment information indicating a communication environment of the client device,
The determination unit determines whether or not to cause the client device to execute the rendering based on the acquired performance information and communication environment information.
The content management system according to claim 1. When it is determined that the rendering is to be performed by the client device, the rendering control unit selects to perform the rendering on the client device side.
3. The contents management system according to claim 1 or 2. When it is determined that the rendering is not to be performed by the client device, the rendering control unit selects to perform the rendering on the server device side and stream the content generated by the rendering to the client device. ,
The contents management system according to any one of claims 1 to 3. an acquisition process in which an acquisition unit acquires performance information indicating the performance of a client device that displays content using 3DCG (3 Dimensional Computer Graphics);
a determination process in which a determination unit determines whether or not to cause the client device to execute rendering for generating the content based on the acquired performance information;
The rendering control unit selects to transmit content information indicating information about the content to the client device when causing the client device to perform the rendering, and selects transmitting the content information to the client device when not causing the rendering to be performed by the client device. a rendering control process that selects to transmit to the client device the content generated by rendering the
content management methods, including; the computer,
Acquisition means for acquiring performance information indicating the performance of a client device that displays content using 3DCG (3 Dimensional Computer Graphics);
determination means for determining whether or not to cause the client device to execute rendering for generating the content based on the acquired performance information;
selecting to transmit content information indicating information about the content to the client device when causing the client device to perform the rendering, and rendering the content information when not causing the rendering to be performed by the client device; rendering control means for choosing to transmit said generated content to said client device;
A program to function as

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