Virtual space content distribution system, virtual space content distribution program, and virtual space content distribution method

Abstract

To further amuse a viewer user.SOLUTION: A virtual space content distribution system comprises: a viewer user terminal 300 usable by a viewer user to perform operation of moving a viewer avatar that can participate in a virtual live venue; and a server computer 100 capable of executing processing related to the virtual live venue and processing related to virtual live distribution. The system is equipped in the virtual space with virtual display areas 41, 42 that can display virtual camera images as seen from virtual cameras. Based on the fulfillment of predetermined conditions, the system displays, in the virtual display areas, images of the viewer avatar as seen from the virtual cameras.SELECTED DRAWING: Figure 25

Description

[Technical field] 【0001】 The present invention relates to a virtual space content distribution system capable of distributing virtual space content in a virtual space, a virtual space content distribution program, and a virtual space content distribution method. [Background technology] 【0002】 Conventionally, a distribution system has been known that distributes live content of a character object (avatar) 10 that moves in a virtual space in conjunction with the distributor's movements, and also allows the viewing user to virtually participate as a spectator in the virtual space in which the distributor's character object (avatar) 10 is located, in response to a request from the viewing user (see, for example, Patent Document 1). [Prior art documents] [Patent documents] 【0003】 [Patent Document 1] JP 2019-186797 A Summary of the Invention [Problem to be solved by the invention] 【0004】 However, in Patent Document 1, although a viewer user can have his / her avatar participate in a virtual space, the viewer user has a hard time getting the feeling that he / she is participating in a live event, and there is a problem in that the viewer user's interest in watching the live content is not heightened. 【0005】 The present invention has been made in response to such problems, and aims to provide a virtual space content distribution system, a virtual space content distribution program, and a virtual space content distribution method that can increase the interest of viewer users watching live content. [Means for solving the problem] 【0006】 The virtual space content delivery system of claim 1 comprises: A virtual space content distribution system capable of distributing virtual space content (e.g., a virtual live performance) in a virtual space (e.g., a virtual live performance venue), a viewer user terminal (e.g., viewer terminal 300) that is a terminal (e.g., a smartphone P, a computer PC) capable of displaying an image of the virtual space content and that can be used by a viewer user who performs an operation to operate a viewer avatar that can participate in the virtual space that is the subject of the virtual space content in the virtual space; A server computer (e.g., a delivery server computer 100) that is connected to the viewer user terminal via a network (e.g., the Internet) and is capable of executing at least processes related to the virtual space (e.g., virtual space update process, virtual space update data generation process, etc.) and processes related to the delivery of the virtual space content (e.g., virtual space update data delivery process, generated audio delivery process, etc.); Including, The virtual space is provided with a virtual display area (e.g., virtual displays 41, 42) capable of displaying a virtual camera image seen from a virtual camera (e.g., virtual cameras C5, C6) installed in the virtual space; Based on the establishment of a predetermined condition (for example, the start of the second or third special performance period), a viewer avatar image seen from the virtual camera is displayed in the virtual display area (for example, the portion where the image of the viewer avatar is displayed on the virtual displays 41 and 42 during the second or third special performance period). It is characterized by the following. According to this feature, since a viewer avatar image is displayed in the virtual display area, the viewer user can easily get the feeling that he or she is participating in the virtual space content, thereby increasing the viewer user's interest. 【0007】 The virtual space content delivery system of claim 2 is the virtual space content delivery system according to claim 1, The predetermined condition includes a predetermined action being performed by the viewer avatar based on a predetermined operation being performed on the viewer user terminal (for example, in the second special performance, a part in which an image of the viewer avatar is displayed on the virtual displays 41 and 42 by the viewer user performing an operation corresponding to a chemical light action within a predetermined period). It is characterized by the following. According to this feature, a viewer avatar image performing a specified action is displayed, making it easier for the viewer user to get the sense that he or she is participating in the virtual space content, further increasing the viewer user's interest. 【0008】 The virtual space content delivery system of claim 3 is the virtual space content delivery system according to claim 1, The predetermined condition includes the transmission of instruction information (e.g., predetermined operation instruction information) from the server computer to the viewer user terminal instructing the viewer avatar to perform a predetermined operation (for example, in the second special performance, the predetermined operation instruction information is transmitted to the performance target person, and an operation corresponding to a chemilight operation within a predetermined period is accepted). It is characterized by the following. According to this feature, it is possible to prevent, as much as possible, a viewer avatar image that is not performing a predetermined action from being displayed due to a viewer user not performing an operation. 【0009】 The virtual space content delivery system of claim 4 is the virtual space content delivery system according to claim 1, The predetermined condition includes being selected from among a plurality of viewer avatars participating in the virtual space (for example, in the second special performance, the image of the viewer avatar is displayed on the virtual displays 41 and 42 on the condition that the viewer avatar is selected in the viewer performance lottery process). It is characterized by the following. According to this feature, the viewer users will pay attention to which viewer avatar is selected, which can further increase the interest of the viewer users. 【0010】 The virtual space content delivery system of claim 5 is the virtual space content delivery system according to claim 1, The predetermined condition includes completion of payment of a predetermined value for the display of the viewer avatar image (for example, in the second special effect and the third special effect, the condition for the image of the viewer avatar to be displayed on the virtual displays 41 and 42 is completion of payment of points required to purchase a virtual item that is the subject of the effect). It is characterized by the following. This feature can prevent a loss of interest due to the display of a viewer avatar image of a viewer user who has not paid any value and has a low level of participation. 【0011】 The virtual space content delivery system of claim 6 is the virtual space content delivery system according to claim 1, The predetermined condition includes the execution of a specific operation on the viewer user terminal to display the viewer avatar image in the virtual display area (for example, in the third special performance, the image of the viewer avatar is displayed on the virtual displays 41 and 42 on the condition that an operation corresponding to the action of holding a placard PK above one's head or an operation corresponding to the action of wearing a T-shirt TS and raising both hands above one's head is executed). It is characterized by the following. According to this feature, the viewer user can display the viewer avatar image by performing a specific operation, which can further increase the viewer user's interest. 【0012】 The virtual space content delivery system of claim 7 is the virtual space content delivery system according to claim 6, The specific operation can be executed during a specific period during which the virtual space content is distributed (for example, during the second special performance or the third special performance). It is characterized by the following. According to this feature, the viewer user will pay attention to whether or not the specific period has arrived, which can further increase the interest of the viewer user. 【0013】 The virtual space content delivery system of claim 8 is the virtual space content delivery system according to claim 1, A limiting means is provided for limiting the display of other viewer avatars participating in the virtual space as the viewer avatar image (for example, as shown in FIG. 26, a portion in which viewer avatars other than the viewer avatar that is the subject are not drawn and are not displayed on the virtual displays 41 and 42). It is characterized by the following. This feature can prevent inconvenience caused by another viewer avatar being displayed as a viewer avatar image, and can enhance the sense of exclusivity of the viewer user of the target viewer avatar. 【0014】 The virtual space content delivery system of claim 9 is the virtual space content delivery system according to claim 1, The viewer avatars include a normal viewer avatar that is not simplified and a simplified viewer avatar that is simplified; The viewer avatar is displayed as the simplified viewer avatar in the video of the virtual space content, but is displayed as the normal viewer avatar in the viewer avatar image (for example, as shown in FIG. 27, viewer avatar 25 is displayed as the simplified viewer avatar, but as shown in FIG. 26(B) in the video displayed on virtual display 41). It is characterized by the following. According to this feature, it is possible to prevent a viewer user's interest from being reduced due to the viewer avatar image being displayed using a simplified viewer avatar. 【0015】 The virtual space content delivery system of claim 10 is the virtual space content delivery system according to claim 1, A viewer avatar image providing means is provided that can transmit image data of the viewer avatar image to the viewer user terminal and provide the image data to the viewer user (for example, in a modified example, a portion that transmits video data displayed on the virtual displays 41 and 42 to the viewer terminal 300). It is characterized by the following. According to this feature, the viewer user can obtain image data of the viewer avatar image. 【0016】 The virtual space content delivery program according to claim 11, A virtual space content distribution program for distributing virtual space content (e.g., a virtual live performance) in a virtual space (e.g., a virtual live performance venue) via a network (e.g., the Internet) using at least a server computer (e.g., a distribution server computer 100), The avatars that can participate in the virtual space that is the subject of the virtual space content include viewer avatars that operate in the virtual space by operating a viewer user terminal (e.g., a viewer terminal 300) that is a terminal (e.g., a smartphone P or a computer PC) available to a viewer user and connected to the server computer via the network, The virtual space is provided with a virtual display area (e.g., virtual displays 41, 42) capable of displaying a virtual camera image seen from a virtual camera (e.g., virtual cameras C5, C6) installed in the virtual space; and a viewer avatar image display step of displaying a viewer avatar image seen from the virtual camera in the virtual display area based on the establishment of a predetermined condition (for example, in the second special performance and the third special performance, a part in which the delivery server computer 100 executes a process of generating viewpoint images of the virtual cameras C5 and C6 and displaying them on the virtual displays 41 and 42). It is characterized by the following. According to this feature, since a viewer avatar image is displayed in the virtual display area, the viewer user can easily get the feeling that he or she is participating in the virtual space content, thereby increasing the viewer user's interest. 【0017】 The virtual space content delivery method according to claim 12 comprises: A virtual space content distribution method for distributing virtual space content (e.g., a virtual live performance) in a virtual space (e.g., a virtual live performance venue) via a network (e.g., the Internet) using at least a server computer (e.g., a distribution server computer 100), comprising: The avatars that can participate in the virtual space that is the subject of the virtual space content include viewer avatars that operate in the virtual space by operating a viewer user terminal (e.g., a viewer terminal 300) that is a terminal (e.g., a smartphone P or a computer PC) available to a viewer user and connected to the server computer via the network, The virtual space is provided with a virtual display area (e.g., virtual displays 41, 42) capable of displaying a virtual camera image seen from a virtual camera (e.g., virtual cameras C5, C6) installed in the virtual space; A viewer avatar image display procedure is included for displaying a viewer avatar image as seen from the virtual camera in the virtual display area based on the establishment of a predetermined condition (for example, a portion including a procedure in which, in the second special performance and the third special performance, the delivery server computer 100 generates viewpoint images of the virtual cameras C5 and C6 and displays them on the virtual displays 41 and 42). It is characterized by the following. According to this feature, since a viewer avatar image is displayed in the virtual display area, the viewer user can easily get the feeling that he or she is participating in the virtual space content, thereby increasing the viewer user's interest. 【0018】 Furthermore, the present invention may have only the invention-specific matters described in the claims of the present invention, or may have the invention-specific matters described in the claims of the present invention as well as configurations other than the invention-specific matters. [Brief description of the drawings] 【0019】 [Figure 1] 1 is a block diagram showing an example of a system configuration of a virtual space content delivery system according to a first embodiment of the present invention. [Diagram 2] 2 is a diagram illustrating an example of the configuration of a delivery server computer in the virtual space content delivery system according to the first embodiment of the present invention. FIG. [Diagram 3] 2 is a diagram showing various data stored in a storage device of a delivery server computer according to the first embodiment of the present invention. FIG. [Figure 4] 2 is a diagram illustrating an example of the configuration of a performer terminal in the virtual space content delivery system according to the first embodiment of the present invention. FIG. [Diagram 5] 2 is a diagram illustrating an example of the configuration of a viewer terminal in the virtual space content delivery system according to the first embodiment of the present invention. FIG. [Figure 6] 2 is a diagram illustrating an example of the configuration of an administrator terminal in the virtual space content delivery system according to the first embodiment of the present invention. FIG. [Figure 7] 3 is a diagram showing an example of the configuration of event data in the virtual space content delivery system according to the first embodiment of the present invention; FIG. [Figure 8] 2 is a diagram showing an example of the configuration of performer user data in the virtual space content delivery system according to the first embodiment of the present invention; FIG. [Figure 9] 2 is a diagram showing an example of the configuration of viewer user data in the virtual space content delivery system according to the first embodiment of the present invention. FIG. [Figure 10] 2 is an explanatory diagram showing data exchanged between each terminal and a server computer constituting the virtual space content delivery system according to the first embodiment of the present invention; FIG. [Figure 11] FIG. 1 is a schematic diagram showing the facilities of a studio used by a performer user in a virtual space content delivery system according to a first embodiment of the present invention. [Figure 12] FIG. 1 is a diagram showing a virtual live concert venue, which is a virtual space used in a virtual space content delivery system according to a first embodiment of the present invention. [Figure 13] 3 is a diagram showing a display example on a viewer terminal constituting the virtual space content delivery system according to the first embodiment of the present invention. FIG. [Figure 14] 3 is a diagram showing a display example on a viewer terminal constituting the virtual space content delivery system according to the first embodiment of the present invention. FIG. [Figure 15] 3A to 3C are diagrams illustrating examples of displays on a performer terminal constituting the virtual space content delivery system according to the first embodiment of the present invention. [Figure 16] 1A to 1C are diagrams illustrating an example of a display by a zoom operation on a viewer terminal constituting the virtual space content delivery system according to the first embodiment of the present invention. [Figure 17] 1A to 1C are diagrams illustrating an example of a display by a zoom operation on a viewer terminal constituting the virtual space content delivery system according to the first embodiment of the present invention. [Figure 18] 3 is a diagram showing a display example on a viewer terminal constituting the virtual space content delivery system according to the first embodiment of the present invention. FIG. [Figure 19] FIG. 2 is a diagram showing an example of the display of a flying performance period on a viewer terminal constituting the virtual space content delivery system of the first embodiment of the present invention. [Figure 20] FIG. 2 is a flow diagram showing an example of a viewer viewpoint video control process executed in the viewer terminal constituting the virtual space content delivery system according to the first embodiment of the present invention. [Figure 21] FIG. 11 is a diagram showing a virtual live concert venue in a modified example of the first embodiment of the present invention. [Figure 22] FIG. 13 is a diagram showing a participation position selection screen for a virtual live concert venue in a modified example of the first embodiment of the present invention. [Figure 23] FIG. 11 is an explanatory diagram showing the contents of a virtual live performance delivered by the virtual space content delivery system according to the second embodiment of the present invention. [Figure 24] A figure showing the movement of a viewer avatar during a second special production period in a virtual live performance in Example 2 of the present invention. [Diagram 25] A diagram showing the state of the virtual live venue during a second special production period during a virtual live in Example 2 of the present invention. [Figure 26] A diagram showing the movement of a viewer avatar during a third special production period in a virtual live performance in Example 2 of the present invention. [Figure 27] A diagram showing the state of the virtual live venue during a third special production period during the virtual live in Example 2 of the present invention. [Figure 28] FIG. 11 is a diagram showing a participant user table used in the virtual space content delivery system according to the second embodiment of the present invention. [Figure 29] FIG. 11 is a flow diagram showing the processing contents of a viewer effect lottery processing executed in a delivery server computer constituting a virtual space content delivery system according to a second embodiment of the present invention. [Diagram 30] 11 is an explanatory diagram showing data transmitted and received during the second special performance period between a distribution server computer and a viewer terminal that constitute a virtual space content distribution system according to the second embodiment of the present invention. FIG. [Diagram 31] 11 is an explanatory diagram showing data transmitted and received during the third special performance period between a distribution server computer and a viewer terminal that constitute a virtual space content distribution system according to the second embodiment of the present invention. FIG. [Diagram 32] 13 is an explanatory diagram showing display contents displayed on each virtual screen provided on a virtual stage G in the second embodiment of the present invention. FIG. [Diagram 33] FIG. 11 is a diagram showing the state of the virtual live venue during the third special production period in a modified example of the second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 【0020】 The following describes the form for implementing the virtual space content distribution system of the present invention based on the embodiments and with reference to the drawings. Note that the same or similar components in the drawings are given the same reference numerals, and duplicated explanations are omitted. The virtual space content distribution program according to the present invention may be a program used in the entire system consisting of the server computer and each terminal described later that constitute the virtual space content distribution system, or may be a program that operates only on a part of the devices that constitute the virtual space content distribution system, such as the server computer and each terminal, and each process described below is executed by a program stored in the device that performs the process. 【0021】 EXAMPLES 【0022】 Fig. 1 is a block diagram showing an example of the system configuration of a virtual space content distribution system in Example 1 which is an embodiment of the present invention, and in the system of Example 1 shown in Fig. 1, a virtual live performance in which a performer avatar 1 corresponding to a performer user performs a live event in a virtual live venue shown in Fig. 12 is distributed as virtual space content. Note that in the following, distribution means transmission to multiple people and is synonymous with transmission. 【0023】 As shown in FIG. 1, the virtual space content distribution system of this embodiment 1 is mainly composed of a distribution server computer 100 capable of executing various processes related to the virtual live venue shown in FIG. 11, which is a virtual space, and various processes related to the distribution of the virtual live event, an administrator terminal 150 used by an event manager M of an event management organization that operates and manages the virtual live event to manage the distribution of the virtual live event, a performer terminal 200 used by a performer user, and a viewer terminal 300 that can be used by a viewer user who virtually participates in and watches the virtual live event, and the distribution server computer 100, the administrator terminal 150, the performer terminal 200, and the viewer terminal 300 are connected to each other so that they can communicate data with each other via the Internet N, which is an open computer network. 【0024】 In this embodiment 1, the administrator terminal 150 and the performer terminal 200 are also shown as being connected to the distribution server computer 100 via the Internet network N, but the present invention is not limited to this. For example, if the studio shown in FIG. 11 is a studio operated by an event management organization which provides the studio to a performer user, and the distribution server computer 100 is installed in this studio, the administrator terminal 150 and the performer terminal 200 may be locally connected to the distribution server computer 100 via data communication, or may be connected via a local area network LAN within the studio facility. 【0025】 1, there are multiple viewer users, such as viewer user A, viewer user B, viewer user C, etc., and viewer terminals 300 include viewer terminals 300a, 300b, 300c, etc. that can be used by each of viewer users A, B, C, etc. Note that there are usually multiple viewer users, but there may be one or four or more, and the number may be appropriately determined depending on the virtual space, such as a virtual live venue. Hereinafter, viewer user A, viewer user B, viewer user C, etc. may be collectively referred to as viewer users, and viewer terminals 300a, 300b, 300c, etc. may be collectively referred to as viewer terminals 300. 【0026】 Furthermore, in this embodiment 1, an example is given of a form in which there is one performer user, but the present invention is not limited to this, and the virtual live performance may be a collaborative event in which multiple performer users working individually virtually participate, or a group event in which a group of multiple people working together virtually participate. In this way, when multiple performers appear, performer terminal 200a, performer terminal 200b, performer terminal 200c... may be provided for each performer user, or if a group of multiple people appears, one performer terminal 200 may be used by multiple people. 【0027】 In addition, although FIG. 1 illustrates the distribution server computer 100 as a single unit, the present invention is not limited to this. These distribution server computers 100 may be configured with multiple server computers, such as a first server computer that mainly performs virtual space processing and a second server computer that mainly performs distribution processing, or may be configured as a cloud server, etc., so that the number of server computers can be changed appropriately depending on the scale of the event, the number of participating listener users, etc. 【0028】 Similarly, although the administrator terminal 150 is illustrated as a single unit in FIG. 1, the present invention is not limited to this, and it goes without saying that there may be multiple administrator terminals 150 depending on the number of performer users and viewer users virtually participating in the live performance. 【0029】 <Distribution server computer> Fig. 2 is a diagram showing the configuration of the distribution server computer 100 used in this embodiment 1. As described above, the distribution server computer 100 used in this embodiment 1 is a normal server computer with relatively excellent processing power installed in a studio operated by an event management organization, and as shown in Fig. 2, it has a processor (CPU) 101 connected to a data bus 108, a memory (RAM) 102, a storage 103 such as a hard disk, a communication interface (I / F) 104 capable of two-way communication by the TCP / IP protocol via the Internet, which is an open computer network, and an input / output interface (I / F) 105 to which an input device such as a keyboard can be connected. 【0030】 In this embodiment 1, an input / output interface (I / F) 105 is provided to enable local operation, but if remote operation is possible via a communication interface (I / F) 104, the input / output interface (I / F) 105 may not be provided. 【0031】 In addition to an operation system (server OS) for providing server functions (not shown), storage 103 of distribution server computer 100 stores various data and programs as shown in Fig. 3. Specifically, mainly stored are an event management program 110 for providing an event management function for managing live events, a virtual space generation program 120 for providing a virtual space of a virtual live venue, which is a virtual space, a performer user management program 130 for providing a performer user management function for managing performer users, and a viewer user management program 132 for providing a viewer user management function for managing viewer users. 【0032】 The event management program 110 is a program for managing a virtual live event, which is an event held at a virtual live venue (see FIG. 12), in cooperation with the administrator terminal 150, and is capable of managing the progress of the virtual live event by using event data 111 (see FIG. 7), timetable data (TT data) 112, and music data 113 stored in the storage 103 together with the event management program 110. 【0033】 An example of the event data 111 used in the present embodiment 1 is shown in Fig. 7. The event data 111 stores information such as an event name, a file name of timetable (TT) data, a performer ID uniquely assigned to a performer user who is a performer, a file name of a music list, a file name of a participating viewer list in which information of special viewer users who are permitted to participate virtually is registered in a third area of ​​the virtual audience area described later, and a file name of a participating viewer list in which information of viewer users who have reserved virtual participation is registered in a fourth area of ​​the virtual audience area described later, in association with an event ID uniquely assigned to the event. 【0034】 The timetable data (TT data) 112 is data in which the order of progress of the virtual live event to be held and the programs such as songs are described in chronological order, and the virtual live event is managed so as to progress based on the time schedule described in the timetable data (TT data) 112. Moreover, the timetable data (TT data) 112 and the event data 111 can be changed, updated, or added by the event manager M operating the manager terminal 150. 【0035】 Furthermore, the song data 113 is data on the performance parts (so-called karaoke) of each song sung by the performer user, and is played by the voice control program 124 (described later) based on the timetable data (TT data) 112 by the event management program 110, and transmitted to the performer terminal 200 and the viewer terminal 300 (see FIG. 11). 【0036】 The virtual space generation program 120 is a program for providing a virtual live venue, which is the virtual space shown in Figure 12, and has the function of providing a virtual live venue in which performer avatars and viewer avatars are virtually participating, using virtual space data 121 describing the structure of the virtual live venue, which is stored in storage 103 together with the virtual space generation program 120, object data 122 for placing various objects to be placed in the virtual live venue (including virtual placement object 43, which is a star decoration on the stage, and virtual aerial objects 50-52, which are star objects in the sky), etc., within the virtual space, and performer avatar data contained in performer user data 131 described later and viewer avatar data contained in viewer user data 133. 【0037】 12, viewpoint image control program 123 is a program for providing a function to generate viewpoint images from virtual cameras C1-C4 virtually set in the virtual live venue and an airborne virtual camera (not shown), and also to provide a function to display images from the viewpoints of viewer avatars 11-14 virtually participating in the third area of ​​the virtual live venue and viewer avatars 21-32 virtually participating in the fourth area on viewer terminal 300. Virtual camera C2 is a virtual camera set to provide an image from the viewpoint of performer avatar 1 on the stage of the virtual live venue, and the viewpoint image from virtual camera C2 is projected onto a screen S installed in the studio by projector 211 (described later) connected to performer terminal 200 in cooperation with performer terminal 200. 【0038】 The audio control program 124 is a program for controlling the audio (including music) distributed during the virtual live event, and specifically provides a function for playing music data 113 and a function for synthesizing the audio produced by the performer user with the played music and distributing it to the administrator terminal 150 and the viewer terminal 300. 【0039】 The comment control program 125, in cooperation with a viewer comment control program stored in the viewer terminal 300 described below, provides a function for displaying various comments entered by each viewer user at the viewer terminal 300 during a virtual live event in chronological order on the performer terminal 200 and the viewer terminal 300. 【0040】 The gift control program 126 is a program for controlling gifts given from viewer users to performer users in cooperation with a viewer program stored in the viewer terminal 300 described below, and specifically provides a function for the viewer user to purchase gifts based on information on the unit purchase price set for various gifts stored in the gift data 134, a processing function for the viewer user to give a gift purchased using the gift object data included in the gift data 134 to the performer user (including processing for the presentation when giving the gift), and a processing function for changing the owner of a gift given from the viewer user to the performer user. 【0041】 The performer user management program 130 provides a management function for information relating to performer users, an authentication function, and the like, based on performer user data 131 shown in FIG. 8, which is stored in the storage 103 together with the performer user management program 130 . 【0042】 The performer user data 131 used in the present embodiment 1 is illustrated in Fig. 8. The performer user data 131 stores various information, such as the performer user's account (email address), name, authentication information, file name of avatar data of an avatar used in the virtual space, and file name of an item list in which owned items are registered, in association with a performer user ID uniquely assigned to the performer user. Although not illustrated in Fig. 8, information on virtual value such as points owned by each performer user may also be stored as the performer user data 131. 【0043】 Performer users can be authenticated by matching the performer user ID, account, and authentication information, and each performer user can identify from an item list the items (gifts) that they own as a result of being given to them by viewers. 【0044】 The viewer / user management program 132 provides functions such as management of information relating to viewer / users and authentication based on viewer / user data 133 shown in FIG. 9 stored in the storage 103 together with the program. 【0045】 The viewer user data 133 used in the present embodiment 1 is illustrated in FIG. The viewer user data 133 stores various information, such as the viewer user's account (email address), authentication information, the file name of the avatar data of the avatar used in the virtual space, owned points which are the number of points that can be used in the virtual space, the file name of an item list in which virtual items (gifts) purchased using points are registered, and personal information such as name, date of birth, and telephone number, in association with a viewer user ID uniquely assigned to the viewer user. Although not shown in FIG. 9, a nickname (comment name) displayed together with a comment is also registered in the viewer user data 133, and the nickname (comment name) is displayed together with the comment. In addition, points can be increased, for example, by purchasing points from a predetermined operating company. The avatar data includes normal avatar data that is not simplified (normal viewer avatar data) and simplified avatar data (simplified viewer avatar data). 【0046】 <Performer terminal> Fig. 4 is a diagram showing an example of the configuration of a performer terminal 200 in the virtual space content delivery system of this embodiment 1. In this embodiment 1, as shown in Fig. 11, the performer terminal 200 is installed in a control room adjacent to a studio where a performer user performs his / her acting motion, and uses a normal computer with relatively excellent processing power, and as shown in Fig. 4, has a processor (CPU) 201 connected to a data bus 208, a memory (RAM) 202, a storage 203 such as a hard disk, a communication interface (I / F) 204 capable of two-way communication by the TCP / IP protocol via the Internet, which is an open computer network, an image processing unit 206 including a graphics processing unit (GPU) to which display devices A210 to C212 are connected, and an input / output interface (I / F) 205 to which various input / output devices are connected. 【0047】 The input / output interface (I / F) 205 is connected with input devices such as a motion sensor 220 including multiple wearable sensors 220C1-220C5 (see FIG. 11) worn by the performer user on the left and right limbs and waist, a facial expression input device 221 consisting of an imaging camera for inputting the performer's facial expressions, a voice input device 222 consisting of a sound collecting microphone worn on the performer user's head, and an operation input device 224 such as a keyboard or touch panel operable by an assistant operator O who assists the performer user. Note that by providing a controller that can be held by the performer user to perform various operations as these input devices, the performer himself may be able to perform various operations without the assistance of the assistant operator O. 【0048】 In this embodiment 1, in order for the performer user to perform performance actions in accordance with the music (including musical actions such as singing and dancing), an assistant operator O assists with the operations during the performance. However, it is also possible to have multiple assistant operators O, or to set the operation content in advance in the performer terminal 200, for example, in a sequence program, thereby eliminating the need for an assistant operator O. 【0049】 An audio output device 223 including high-performance earphones (in-ear monitors) worn by the performer user and speakers placed in the control room is connected to the input / output interface (I / F) 205 as an output device, so that the sound of the played music transmitted from the distribution server computer 100 is output to the performer user via the high-performance earphones (in-ear monitors), and the music audio is output from the speakers along with the performer's voice, allowing an assistant operator O, etc. to check the status of the music, including the voice produced by the performer user, in the control room. 【0050】 In this embodiment 1, high-performance earphones (in-ear monitors) are used to avoid the inconvenience caused by the played music audio being input from the sound collection microphone worn by the performer user, but the present invention is not limited to this, and the music audio may be output from speakers in the studio, etc., as long as the inconvenience caused by the input of the music audio can be avoided. 【0051】 In the first embodiment, the sound collecting microphones are worn by the performers, but these sound collecting microphones may be installed on the floor, wall, or ceiling of the studio. 【0052】 Here, the motion sensor 220 used in the performer terminal 200 of the present embodiment 1 will be described. Any motion sensor can be used as long as it can properly detect (measure) the body movements (movements) of the performer user. In the present embodiment 1, in order to enable more accurate and short-period detection of the performer's movements, a number of wearable sensors 220C1 to 220C5 are used that are worn by the performer user on the body. Note that the motion sensor 220 may be of a type that does not require the performer to wear any equipment, such as LiDAR that uses laser light or the like. 【0053】 In this embodiment 1, in order to reduce the burden of movement, particularly the head movement, caused by wearing sensors etc. when the performer user performs a performance movement, the head movement of the performer user is detected by image recognition using images captured by the imaging camera constituting the facial expression input device 221 as described below, and five wearable sensors 220C1 to 220C5 are used to detect movements other than the head. However, for example, wearable sensors may also be provided on the performer user's head, etc., or more wearable sensors (7 or more) may be worn to detect more detailed movements. 【0054】 As shown in FIG. 11, the mounting sensors 220C1 to 220C5 detect their own positions and orientations in cooperation with base stations 220a and 220b installed in a studio room separated from the adjacent control room by a glass window. 【0055】 Base station 220a and base station 220b may use, for example, a multi-axis laser emitter. Base station 220a may emit a flashing light for synchronization, and then scan the laser light around, for example, a vertical axis. Base station 220b may scan the laser light around, for example, a horizontal axis. 【0056】 Each of the mounting sensors 220C1 to 220C5 may include a plurality of optical sensors that detect the incidence of blinking light and laser light from the base station 220a and the base station 220b. 【0057】 Each of the wearing sensors 220C1 to 220C5 is capable of detecting its own position and orientation based on the time difference between the timing of the incidence of the flashing light and the timing of the incidence of the laser light, the light reception time at each optical sensor, the incidence angle of the laser light detected by each optical sensor, and other information as necessary. For example, the ViveTracker or base station provided by HTC CORPORATION can be suitably used. 【0058】 Base station 220a and base station 220b emit blinking light and perform laser light scanning at regular intervals, so that the detection information of each of worn sensors 220C1-220C5 is updated at each interval. Detection information indicating the position and orientation of each motion sensor calculated in each of these worn sensors 220C1-220C5 is input to performer terminal 200 by short-range wireless communication and transmitted to distribution server computer 100 as performer avatar information together with facial motion information (see FIG. 10). 【0059】 In this embodiment 1, an example is shown in which two base stations, base station 220a and base station 220b, but the present invention is not limited to this, and the number of base stations may be three or more. 【0060】 In addition, the motion sensor 220 may be configured such that each of multiple motion sensors worn by the performer user is equipped with a number of infrared LEDs or visible light LEDs, and the position and orientation of each of the motion sensors is detected by detecting the light from these LEDs with an infrared camera installed on the floor or wall of the studio. 【0061】 Also, in order to reduce the burden on the performer user, the motion sensor 220 may be replaced with a motion sensor using a lighter reflective marker instead of the wearable sensors 220C1-220C5. That is, the motion sensor may detect the motion of the performer user by capturing images of reflective markers attached to various parts of the performer user's body with adhesive tape or the like to generate image data, and then processing the captured image data to detect the positions and orientations of the reflective markers. In this case, a cameraman who captures the performer user may be placed in the studio to capture the performer user's motion from a direction suitable for detection, so that the motion of the performer user can be detected well. 【0062】 In addition, the motion sensor 220 may be a suit with a built-in inertial sensor, such as a suit with a built-in inertial sensor for the MVN motion capture system marketed by Xsens.com, and the movements of the performer user may be detected by analyzing the sensor signal output from the inertial sensor. 【0063】 Any facial expression input device 221 can be used as long as it can appropriately detect the head movement including the face of the performer user. In this embodiment 1, specifically, it is configured with an imaging camera (digital camera) arranged so as to be able to continuously capture head images including the face of the performer user, and the head movement and facial movement (facial expression) of the performer user captured by the imaging camera are detected by image recognition, and the facial motion information, which is the detected head movement and facial movement (facial expression), is transmitted to the delivery server computer 100 as performer avatar information together with body motion information, as shown in Fig. 10. 【0064】 The facial expression input device 221 is not limited to the imaging camera (digital camera) used in the present embodiment 1, and may be, for example, a 3D camera capable of detecting the depth of a person's face, or may be a mobile terminal such as a smartphone equipped with a LiDER device. In this case, the performer user may wear such a mobile terminal. 【0065】 As described above, the performer terminal 200 of this Example 1 has three display devices A210 to C212, where display device A210 is an LCD monitor or the like installed in a control room as shown in FIG. 11, display device B211 is a projector that projects an image onto a screen S installed in a studio, and display device C212 is a large vertical display installed adjacent to the screen S in the studio. 【0066】 Display device A210, which is placed in the adjustment room of the studio, displays images from each viewpoint of virtual cameras C1 to C4, viewpoint images from a virtual camera moving in the air during the flying performance period described below, the contents of comments, and a message input window into which assistant operator O inputs any message he or she wishes to convey to the performer user. 【0067】 Meanwhile, a screen S projected from a projector, which is a display device B211 installed in the studio, displays an image from the viewpoint of a virtual camera C2 (see FIG. 12), which is the viewpoint of the performer, for example, as shown in FIG. 15, including avatars of viewers who are virtually participating in the live performance in the third and fourth areas, thereby enabling the performer user to check the status of the viewer users who are virtually participating in the virtual live performance through the image. 【0068】 In addition, comments from viewer users, as well as comments and messages entered by the assistant operator O, are displayed on a display device C212 installed in the studio, allowing the performer user to check the comments from viewer users and messages from the assistant operator O even during the performance. 【0069】 In addition to an operating system (OS) for operating the computer that is the performer terminal 200, the storage 203 also stores performer programs that, when executed by the processor (CPU) 201 etc., work in cooperation with the distribution server computer 100 to provide various functions, including the function of allowing the performer user to control the movement of the performer avatar 1 in a virtual live performance, which is virtual space content. 【0070】 As shown in FIG. 4, the performer programs include a performer avatar control program, a performer viewpoint image control program, a performer viewpoint image control program, a performer voice control program, a performer comment control program, performer authentication data, etc. 【0071】 The performer avatar control program is a program that mainly provides the function of scanning the body motion of the performer user using the motion sensor 220 and scanning the facial motion (facial expression) of the performer user using the facial expression input device 221, generating performer avatar information for operating the performer avatar, and transmitting it to the distribution server computer 100. 【0072】 The performer's viewpoint image control program is a program that provides a function for generating and outputting a viewpoint image of virtual camera C2, which is the performer's viewpoint, based on the virtual space update data distributed from distribution server computer 100. 【0073】 The performer's audio control program is a program that provides the function of outputting the playback sound of a song based on the playback music data distributed from the distribution server computer 100 via the audio output device 223, converting the audio input from the audio input device 222 into data and transmitting it to the distribution server computer 100 as performer audio data, and generating and outputting monitor audio consisting of the playback sound of the song and the performer's audio. 【0074】 The performer's comment control program is a program that provides a function for displaying each comment by an audience user that is distributed from the distribution server computer 100 . 【0075】 The performer authentication data is data for authenticating the identity of the performer user in a communication connection with the distribution server computer 100 . 【0076】 In addition, the performer avatar control program includes a motion parameter generation program capable of generating parameter information for the positions and rotation angles of the bones that make up the rig data (sometimes called "skeleton data") that indicates the skeleton of the performer avatar contained in the performer avatar data, as well as an image recognition processing program for image-recognizing the position of the performer user's head and facial expression from images captured by an imaging camera. 【0077】 In addition, in this embodiment 1, the performer terminal 200 is exemplified as a form in which a computer serving as the performer terminal 200 installed in a studio operated by an event management organization is jointly used by multiple performer users to hold a live event, and each performer user can use it as their own performer terminal 200 by inputting performer authentication data. However, the present invention is not limited to this, and for example, when a performer user appears in a virtual live performance from their home, etc., the performer terminal 200 may be a computer installed in the performer user's home and used exclusively by the performer user, and in such cases, storage of performer authentication data is not necessarily required. 【0078】 In this way, by using the performer terminal 200 constituting the virtual space content delivery system of the present embodiment 1, the performer user or the like can move the performer avatar 1 placed on the virtual stage G in the virtual live venue in conjunction with the performer user's own movements, and can reflect the performer user's own facial expression in the facial expression of the performer avatar 1. In addition, the performer user can deliver his or her own voice as the voice of the performer avatar 1 to the viewers via the delivery server computer 100. 【0079】 <Viewer device> Fig. 5 is a diagram showing a configuration example of a viewer terminal 300 in the virtual space content delivery system of the present embodiment 1. In the present embodiment 1, the viewer terminal 300 is a smartphone P carried by a viewer user or a regular desktop computer (PC) installed at a viewer user's home or the like, and as shown in Fig. 5, has a processor (CPU) 301 connected to a data bus 308, a memory (RAM) 302, a storage 303 such as a hard disk or non-volatile memory, a communication interface (I / F) 304 capable of two-way communication by the TCP / IP protocol via the Internet, which is an open computer network, an image processing unit 306 including a graphics processing unit (GPU) to which a display device 310 is connected, and an input / output interface (I / F) 305 to which various input / output devices are connected. 【0080】 The display device 310 may display each viewpoint video generated based on the virtual space data of the virtual live venue, which is a virtual space updated by the virtual space update data (see FIG. 10) distributed from the distribution server computer 100, by the viewer viewpoint video control program included in the viewer program stored in the storage 303, as described later, and the flying viewpoint video distributed from the distribution server computer 100 during the flying production period described later. If the viewer terminal 300 is a smartphone P, the display device 310 corresponds to the display device of the smartphone P, and if the viewer terminal 300 is a normal computer (PC), the display device 310 corresponds to the display device of the stationary type constituting the computer (PC). Note that these displays are not limited to those that display planar images (2D images), and may be, for example, those that can display stereoscopic images (3D images) by displaying right-eye images and left-eye images, such as a head-mounted display (HMD) that can be worn by the viewer. 【0081】 The input / output interface (I / F) 305 is connected to an operation input device 321 consisting of one or more devices that allow the viewer to perform various operations as input devices, and an audio output device 322 such as earphones or speakers that can output live audio, etc., distributed from the distribution server computer 100. 【0082】 It goes without saying that the audio output device 322 need not be an independent device, but may be integrated with the display device 310 like the above-mentioned head mounted display (HMD). 【0083】 The operation input device 321 may be any device that allows the viewer to perform various operations such as motion operations including moving the viewer avatar, zoom operations, operations related to comments, operations related to gifts, etc., and may be composed of at least one of, for example, a transparent touch panel formed on the display surface of a smartphone, a keyboard constituting a computer, a game controller, etc. 【0084】 In this embodiment 1, as described below, the virtual audience area in the virtual live venue is divided into a third area near the virtual stage G in which only viewer users who have been specially permitted by the performer user can virtually participate, and a fourth area around the third area in which general viewer users can virtually participate, as shown in Figure 12. As described above, a viewer user who virtually participates in the fourth area may have an operation input device 321 such as a touch panel, keyboard, game controller, etc., but a viewer user who virtually participates in the third area owns an operation input device 321 such as an MVN motion capture suit with the above-mentioned inertial sensor built in, and is a viewer user who can precisely move the viewer avatar with their own movements, just like a performer user. 【0085】 However, even viewer users who are permitted to virtually participate in the third area cannot change the facial expression of the viewer avatar, but the present invention is not limited to this, and the facial expressions of these viewer avatars may be changed, for example, as described above, by the viewer user using the camera function of a smartphone or a camera connected to a computer to recognize the facial expression of the viewer user, even if it is to a different level than the level of change made by the performer user. 【0086】 The various input / output devices connected to the input / output interface (I / F) 305 may be built-in or external, and in the case of external devices, the connection form may be either wired or wireless. 【0087】 In addition to an operating system (OS) for operating the viewer terminal 300, which is a smartphone or computer, the storage 303 also stores a viewer program as a viewing application that, when executed by a processor (CPU) 301 or the like, works in cooperation with the distribution server computer 100 to provide various functions, including a live viewing function for viewer users in a virtual live, which is virtual space content. 【0088】 As shown in FIG. 5, the viewer program includes a viewer viewpoint image control program which provides the function of generating each viewpoint image of the virtual live to be displayed on the display device 310, a viewer audio control program which provides the function of outputting live audio from the audio output device 322 based on the live audio (data) of the virtual live distributed from the distribution server computer 100, a viewer comment control program which displays comments based on comment data distributed from the distribution server computer 100 and provides functions related to comments such as comments entered by the viewer and sending them to the distribution server computer 100, and viewer authentication data for authenticating that the viewer user is the correct person in a communication connection with the distribution server computer 100. 【0089】 In addition, although not shown in Figure 5, in addition to the above-mentioned programs, there are included a gift control program that performs control related to gifts, and an area designation program for reserving an area (position) in which a viewer avatar will virtually participate in the virtual live venue in advance before the start of a live event, as shown in variant example 3-1 (see Figures 42 and 43) described below, but other programs other than these may also be included. 【0090】 In the first embodiment, the comments input by the viewer are short messages in text format, but are not limited to these short messages in text format, and may be, for example, still image messages, video messages, or any other electronic message format. The comments are displayed on the display device 310, superimposed on each viewpoint video. 【0091】 In this way, by using the viewer terminal 300 that constitutes the virtual space content distribution system of this Example 1, a viewer user can move and operate the viewer avatar that is virtually participating in the virtual live venue, and by changing the viewpoint of the viewer avatar, the viewpoint image displayed on the display device 310 can be changed, and the zoom state (viewpoint state) can also be changed, allowing the viewer user to operate the viewer avatar to cheer on the performer avatar 1. 【0092】 It should be noted that a viewer avatar who has virtually participated in the third area is only allowed to move within the third area, and cannot move to the fourth area. On the other hand, a viewer avatar who has virtually participated in the fourth area is only allowed to move within the fourth area, and cannot move to the third area. However, the present invention is not limited to this, and a viewer avatar who has virtually participated in three areas may be allowed to move to the fourth area. It should be noted that a viewer avatar cannot naturally move to the virtual stage G, etc., so the visibility of the performer avatar 1 is not obstructed by the viewer avatar moving onto the virtual stage G. 【0093】 In addition, by displaying viewpoint images on these display devices 310 and outputting live audio, the user can enjoy the virtual live performance with the feeling that he or she is actually present at the virtual live performance venue. 【0094】 Although detailed explanation is omitted, the comment function provided by the viewer comment control program allows viewers to enjoy the virtual live performance while checking comments entered by themselves and other viewer users, and the gift function provided by the gift control program allows viewers to liven up the virtual live performance by gifting virtual items they own to the performer avatar 1. 【0095】 <Administrator terminal> Fig. 6 is a diagram showing an example of the configuration of an administrator terminal 150 in the virtual space content delivery system of this embodiment 1. In this embodiment 1, the administrator terminal 150 uses a normal computer installed in a control room adjacent to the studio together with the performer terminal 200, and as shown in Fig. 6, has a processor (CPU) 151 connected to a data bus 158, a memory (RAM) 152, a storage 153 such as a hard disk, a communication interface (I / F) 154 capable of two-way communication by the TCP / IP protocol via the Internet, which is an open computer network, an image processing unit 156 including a graphics processing unit (GPU) to which a display device 160 is connected, and an input / output interface (I / F) 155 to which various input / output devices are connected. 【0096】 As described below, the display device 160 is capable of individually displaying each viewpoint image of each of the virtual cameras C1 to C4 described below and each viewpoint image of the virtual camera moving in the air during the flying performance period, which are generated based on virtual space data of the virtual live venue, which is a virtual space updated by virtual space update data (see Figure 10) distributed from the distribution server computer 100, by an administrator viewpoint image control program included in the administrator program stored in storage 153, and is also capable of displaying comments based on comment data distributed from the distribution server computer 100, and is composed of one or more stationary displays. 【0097】 The input / output interface (I / F) 155 is connected to an operation input device 161 consisting of one or more devices that enable the event manager M to perform various operations as input devices, and an audio output device 162 such as earphones, headphones, or speakers that can output live audio, etc., distributed from the distribution server computer 100. 【0098】 The operation input device 161 can be any device that allows the event manager M to perform various operations such as input and settings related to the virtual live event, and may be composed of at least one of, for example, a keyboard that constitutes a computer, a transparent touch panel formed on the surface of a display, a viewpoint switching controller, etc. 【0099】 The various input / output devices connected to the input / output interface (I / F) 155 may be connected in either a wired or wireless manner. 【0100】 In addition to an operating system (OS) for operating the computer that is the administrator terminal 150, the storage 153 also stores an administrator program that is executed by a processor (CPU) 151, etc. to provide various functions in cooperation with the distribution server computer 100, including distribution management functions for the distribution of virtual live shows, which are virtual space content. 【0101】 As shown in FIG. 6, the administrator programs include an administrator viewpoint video control program, an administrator audio control program, an administrator comment control program, an audience management program, a performer management program, and the like. 【0102】 The viewpoint video control program for administrator is a program that provides a function for generating viewpoint videos from each virtual camera to be displayed on the display device 160, as well as a function for changing and switching each viewpoint. 【0103】 The administrator audio control program is a program that provides a function for outputting live audio from the audio output device 162 based on the audio data of the virtual live event distributed from the distribution server computer 100 . 【0104】 The administrator's comment control program is a program that displays comments based on comment data distributed from the distribution server computer 100, and provides comment-related functions such as prohibiting comments from being distributed and selecting viewers to prevent them from being distributed. 【0105】 The viewer management program is a program for managing viewer users who virtually participate in the virtual live performance, and the performer management program is a program for managing performer users who virtually participate in the virtual live performance. 【0106】 Although not shown in FIG. 6, the system includes an authentication program for authenticating whether the administrator who is the operator is the actual person, and a schedule program for editing the virtual live show time schedule and song order, etc., but may also include other programs. 【0107】 In this way, by the event manager M operating the manager terminal 150 that constitutes the virtual space content distribution system of this embodiment 1, various settings for executing the event can be implemented, such as settings related to the program, order of songs, and performance, as well as the time schedule and the trajectory of the virtual camera moving in the air during the flying performance period, and the virtual live performance can be managed based on the settings made in this way. 【0108】 <Virtual live venue> The virtual live venue, which is the virtual space used in Example 1, is shown in Fig. 12. As shown in Fig. 12, the virtual live venue, like a live venue in real space, is a virtual space having a virtual stage G where performer users appear as performer avatars 1 and a virtual audience area where viewer users who will be in the audience virtually participate as viewer avatars. 【0109】 12, virtual stage G has a relatively large trapezoidal floor surface, and performer avatar 1 can move on virtual stage G in the same way as in a live venue in real space. On the side of virtual stage G opposite the virtual audience seats, as shown in Fig. 12, a virtual stage wall is formed that is divided into three parts, a center part, a right part, and a left part, and virtual displays 40, 41, and 42 are provided in front of these virtual stage walls, and images and videos for performance are virtually displayed on these virtual displays 40, 41, and 42. 【0110】 A star virtual arrangement object 43 related to the performer user is placed between the virtual displays 40, 41, 42, and large star virtual aerial objects 50-52 are placed in a second area, which is an area on the virtual stage G and is above a first area surrounded by the virtual stage walls, as shown in Fig. 12. The virtual aerial objects 50-52 are movable within the second area. 【0111】 A virtual audience area where viewer users can virtually participate in the virtual live venue as viewer avatars is provided in front of the virtual stage G. As shown in Fig. 12, this virtual audience area is made up of a third area, which is a special area close to the center of the virtual stage G where the performer avatar 1 appears, and a fourth area, which is formed to surround the third area and is farther away from the center of the virtual stage G than the third area. 【0112】 These third areas are available for virtual participation by special viewer users who are permitted to participate virtually, up to a predetermined upper limit. In this embodiment 1, as shown in FIG. 12, for example, viewer avatars 11 to 14 of four viewer users who have met a predetermined virtual participation record and have been permitted to participate virtually by the performer user are arranged. 【0113】 In addition, the fourth area includes viewer avatars 21-32 of general viewer users who have reserved virtual participation before the start of the virtual live. Note that, in Fig. 12, the viewer avatars 21-32 are shown in a simplified manner for the sake of convenience, but are the same avatars as the viewer avatars 11-14. 【0114】 Furthermore, each viewer avatar 11-14 placed in the third area can be moved within the third area by the viewer user operating the viewer terminal, and each viewer avatar 21-32 placed in the fourth area can be moved within the fourth area by the viewer user operating the viewer terminal. 【0115】 Four virtual cameras C1 to C4 are virtually arranged (set) in the virtual live performance venue, as shown in Fig. 12. Virtual camera C1 is virtually arranged in front of performer avatar 1 so as to face the performer avatar 1, and the viewpoint image captured by virtual camera C1 is a viewpoint image viewed from a position close to the front of the performer avatar 1, as shown in Fig. 13(a). 【0116】 Virtual camera C2 is a camera virtually placed (set) above the head of performer avatar 1, and the viewpoint image captured by virtual camera C2 is a performer viewpoint image captured by viewing the virtual audience area from performer avatar 1, as shown in FIG. 【0117】 Virtual camera C3 is a virtual camera virtually placed on the virtual display 41 diagonally behind the performer avatar 1, and the viewpoint image from virtual camera C3 is a viewpoint image looking at the virtual audience area from diagonally behind the performer avatar 1, as shown in Figure 13(c). 【0118】 Virtual camera C4 is a virtual camera virtually placed on the virtual display 42 diagonally behind the performer avatar 1, and the viewpoint image from virtual camera C4 is a viewpoint image looking at the virtual audience area from diagonally behind the performer avatar 1, as shown in Figure 13(b). 【0119】 In addition to the fixedly placed (set) virtual cameras C1 to C4, in this embodiment 1, an air-moving virtual camera (not shown) is virtually placed so as to be movable in the air within the virtual live venue space, which is a virtual space. The air trajectories along which these air-moving virtual cameras move and the viewpoint directions (angles) at each position on the air trajectory are preset by the administrator terminal 150, and during the flying performance period described later, the performer avatar 1 virtually flies so as to follow the air trajectory of the air-moving virtual camera, thereby generating a viewpoint video of the virtually flying performer avatar 1 captured by the air-moving virtual camera. 【0120】 In this embodiment 1, as shown in FIG. 12, an example is given in which four virtual cameras C1 to C4 are virtually arranged as fixedly arranged (set) virtual cameras, but the present invention is not limited to this, and the number of these fixedly arranged (set) virtual cameras may be five or more, or conversely, without providing fixedly arranged (set) virtual cameras, only the viewpoint images seen from the viewpoints corresponding to each avatar virtually participating in the virtual live venue may be displayed on the performer terminal 200 and the viewer terminal 300. 【0121】 In addition, in this embodiment 1, an example is given of a configuration in which there is one virtual camera moving through the air, but the present invention is not limited to this, and a configuration in which there are multiple virtual cameras moving through the air may also be used, or conversely, a configuration in which no virtual camera moving through the air is virtually placed may also be used. 【0122】 <Studio> 11 is a diagram showing the studio used in Example 1, and as described above, the studio is adjacent to the control room separated by a glass window, and the performer user performs each movement corresponding to singing in the studio, while the assistant operator O assists with the operation of the performer terminal 200 installed in the control room. Around the performer user wearing the wearable sensors 220C1 to 220C5, base stations 220a and 220b are mounted on a stand, and an imaging camera constituting the facial expression input device 221 is mounted on a stand in a position almost in front of the performer user. 【0123】 A screen S is provided on the wall facing the performer user in the studio, and a projector (display device B211) installed on the ceiling of the studio projects the viewpoint image of virtual camera C2 onto screen S, so that the viewpoint image seen from performer avatar 1 as looking at the virtual audience area is displayed on screen S, as shown in Figure 15. This allows the performer user to proceed with the live performance while constantly keeping track of the behavior of the viewer avatars virtually participating in the virtual audience area (the viewer's reaction to the live performance). 【0124】 A vertical large display is arranged to the side of the screen S as the display device C212, and comments from the audience and messages that the assistant operator O wants to convey to the performer users are displayed on the large display. The display device C212 may be configured to display information (performer support information) such as the lyrics of the song sung by the performer during the live performance and lines. 【0125】 <Operation of virtual space content delivery system> FIG. 10 is an explanatory diagram for explaining the operation of the virtual space content delivery system of the first embodiment, specifically, the flow of delivery of video and audio of a virtual live performance. 【0126】 First, the video system will be described. As described above, the distribution server computer 100 is capable of providing a virtual space of a virtual live venue based on the virtual space generation program 120 and the avatar data of the performer users and the viewer users, and the actions of the avatars of the performer users and the viewer users are reflected in the actions of the performer avatar 1 and the viewer avatar 1 actions (operations) of the viewer users are reflected in the actions of the viewer avatar by updating the virtual space data in which the state of the virtual space is described based on the performer avatar information transmitted from the performer terminal 200 and the viewer avatar information transmitted from the viewer terminal 300. 【0127】 Although not shown in FIG. 10, when the performer terminal 200 and the viewer terminal 300 communicate with the distribution server computer 100 in order to virtually participate in the virtual live performance, virtual space data of the virtual live performance venue is delivered in advance from the distribution server computer 100 and stored in the performer terminal 200 and the viewer terminal 300. As described below, the virtual space data stored in advance in this manner is successively updated by virtual space update data delivered successively from the distribution server computer 100, allowing the performer terminal 200 and the viewer terminal 300 to identify the latest state of the virtual live performance venue. 【0128】 Specifically, the movements and facial expressions of the performer user in the studio are scanned at predetermined time intervals by the body motion scan and face motion scan functions of the performer avatar control program described above, and performer avatar information is generated and transmitted to the distribution server computer 100. 【0129】 On the other hand, viewer users who are permitted to virtually participate in the third area use motion sensors, just like the performers, and are scanned at specified intervals using the body motion scan and face motion scan functions, and viewer avatar information is generated and transmitted to the distribution server computer 100. 【0130】 Furthermore, a viewer user permitted to virtually participate in the fourth area can use the touch panel, keyboard, or controller of the viewer terminal 300 to perform various operations such as movement, changing the viewpoint direction, changing the viewpoint state (zoom), raising hands, clapping hands, jumping, etc., to make the viewer avatar perform the corresponding action. Then, of these operations, viewer avatar information is generated based on the operation related to the viewer avatar's action and transmitted to the delivery server computer 100. 【0131】 Furthermore, viewer users virtually participating in the third area can also use a controller or the like to perform various operations such as movement, changing the viewpoint (zoom), raising their hands, clapping their hands, jumping, etc. In this case, a menu item corresponding to each action is displayed, and the menu item corresponding to each action can be selected using a controller or the like. 【0132】 In this manner, an avatar action operation process is executed in the viewer terminal 300 to receive operations corresponding to each action to be performed by the viewer avatar. The avatar action operation process also includes processes such as displaying and erasing menu items corresponding to each of the above-mentioned actions. 【0133】 In this way, based on the performer avatar information transmitted from the performer terminal 200 and the viewer avatar information transmitted from the viewer terminal 300, the distribution server computer 100 executes a virtual space update process that updates the virtual space data, thereby reflecting the actions (operations) of the performer user and the viewer user in each avatar virtually participating in the virtual live venue. 【0134】 Then, after executing a virtual space update data generation process for generating virtual space update data based on the virtual space data before the update and the virtual space data after the update, the generated virtual space update data is distributed to the performer terminal 200 and the viewer terminal 300. 【0135】 At the performer terminal 200 and viewer terminal 300 to which the virtual space update data has been delivered, as shown in FIG. 10, the pre-stored virtual space data is updated based on the delivered virtual space update data, and a performer perspective video generation process and a viewer perspective video generation process are executed using the updated virtual space data, thereby generating performer perspective video and viewer perspective video based on the updated virtual space data, and the generated performer perspective video and viewer perspective video are displayed on the performer terminal 200 and the viewer terminal 300 (viewer perspective video output process). 【0136】 In this way, in this embodiment 1, the viewpoint video of each viewer user who is virtually participating in the virtual live venue through a viewer avatar is generated and displayed on the viewer terminal 300 of each viewer user, and by generating the viewer avatar viewpoint video of each viewer user on the distribution server computer 100, it is possible to prevent the processing load on the distribution server computer 100 from becoming significantly large, which would result in many viewer users being unable to participate in the virtual live, and it is also possible to prevent distribution from becoming difficult due to an increased processing load. 【0137】 In this embodiment 1, a viewpoint image is generated and displayed on the display device 310 of the viewer terminal 300 of the viewer user of the viewer avatar 13 who is virtually participating in the third area close to the performer avatar 1 on the virtual stage G, in which a viewpoint image of almost the front of the performer avatar 1 is displayed large, as shown in Figure 13 (d), which is a viewpoint image seen from the viewer avatar 13 close to the performer avatar 1, while a viewpoint image is generated and displayed on the display device 310 of the viewer terminal 300 of the viewer user of the viewer avatar 28 who is virtually participating in the fourth area far from the performer avatar 1 on the virtual stage G, for example, at a position behind the viewer avatar 13, in which a viewpoint image of almost the front of the performer avatar 1 appears relatively small through the viewer avatar 13 and viewer avatar 14 who are virtually participating in the third area, as shown in Figure 13 (e). 【0138】 In addition, the display device 310 of the viewer terminal 300 of the viewer user of the viewer avatar 32 who is virtually participating at the edge position of the virtual stage G in the fourth area, which is set up as a U-shape when viewed from above, displays a viewpoint image seen from the viewer avatar 32 positioned diagonally forward of the performer avatar 1, as shown in Figure 13 (f), in which the performer avatar 1 appears relatively small through the viewer avatar 14 who is virtually participating in the third area. 【0139】 Note that all of the display examples shown in Figure 13 are examples in which the viewer terminal 300 is a stationary computer (PC) and the display device 310 is a stationary display. However, for example, if the viewer terminal 300 is a smartphone P, tablet, etc., the viewpoint image of the virtual camera C1 is displayed as shown in Figure 14(a), and if the viewer terminal 300 is the viewer terminal 300 of the viewer avatar 13, it is displayed as shown in Figure 14(b). 【0140】 Next, the audio system will be described. In the distribution server computer 100, music data 113 is played back by the audio control program 124 based on time table data (TT data) 112, and transmitted to the performer terminal 200 as played music (data) (music playback process). 【0141】 In the performer terminal 200, the music audio from the played music (data) transmitted from the distribution server computer 100 is output to the performer user through high-performance earphones (in-ear monitors) worn by the performer user (played music output process), and when the performer user sings along with the output played music, the performer voice input from the sound collection microphone (audio input device 222) is digitized and transmitted to the distribution server computer 100 as the performer voice (data). 【0142】 The distribution server computer 100 generates distribution audio (data) from the performer audio (data) received from the performer terminal 200 and the played music played in the music playback process described above (distribution audio generation process), and distributes the generated distribution audio (data) to the viewer terminal 300 (generated audio distribution process). 【0143】 In the viewer terminal 300, the distribution audio (data) distributed from the distribution server computer 100 is output from an audio output device 322 such as earphones or speakers, allowing the viewer to hear the live audio as if the performer avatar 1 were singing in the virtual live venue. 【0144】 Furthermore, in the performer terminal 200, as described above, the performer's voice (data) is transmitted to the distribution server computer 100, and as shown in Figure 10, a monitor audio generation process and a monitor audio output process are executed, so that the music audio of the played music and the performer's voice are output from speakers placed in the control room, allowing an assistant operator O, etc. to check the singing status of the performer user in the control room. 【0145】 <Viewer's viewpoint video control processing> Next, a viewer's viewpoint video control process executed in the viewer terminal 300 based on a viewer's viewpoint video control program included in the viewer's program will be described with reference to FIG. 【0146】 In the viewer viewpoint video control process, first, it is determined whether or not the performer avatar 1 is in a flying performance period in which the performer avatar 1 is virtually flying, as shown in Fig. 19 (step S1). Whether or not the performer avatar 1 is in a flying performance period can be identified by performance status data indicating that the performer avatar 1 is in a flying performance period, sent from the delivery server computer 100. The delivery server computer 100 transmits performance status data indicating that the performer avatar 1 is in a flying performance period to the viewer terminal 300 when the performer avatar 1 is in a flying performance period based on the time table data (TT data) 112. 【0147】 If it is during the flying performance period (Y in step S1), proceed to step S21, whereas if it is not during the flying performance period (N in step S1), it is determined whether viewpoint-related operations including viewpoint movement operations (including changing the viewpoint by avatar movement operations and motion operations) and zoom operations are disabled (step S2). 【0148】 If the viewpoint-related operation is invalid (Y in step S2), the process proceeds to step S7. If the viewpoint-related operation is not invalid (N in step S2), the process determines whether or not there is an operation that changes the viewpoint, such as an operation of moving an avatar or an operation of moving an avatar (step S3), and if there is an operation (Y in step S3), the viewer viewpoint is changed according to the operation, and if there is no operation (N in step S3), the process proceeds to step S5, and determines whether or not there is a zoom operation (step S5). 【0149】 If a zoom operation is performed (Y in step S5), the image area displayed on the display device 310 is changed to an image area corresponding to the operation, and if a zoom operation is not performed (N in step S5), it is determined whether or not a motion tracking setting is present (step S7). 【0150】 This motion tracking setting can be arbitrarily set by the viewer user on the viewer terminal 300, for example, before the start of a live performance or during a live performance, depending on the type of device used by the viewer user and his / her level of proficiency in the operation. Specifically, the motion tracking setting is set in cases where, for example, the viewer user is not familiar with operating the operation input device 321 such as a touch panel, keyboard, or game controller, or is not familiar with changing the viewpoint by operating the avatar to move or move, or, as will be described later, the virtual participation position of the viewer user's avatar is far from the performer avatar 1 and the viewer user is zoomed in and displayed in an enlarged manner, so that even a slight movement of the performer avatar 1 prevents the performer avatar 1 from being displayed appropriately, and so on, and the viewer user is unable to change the viewpoint in response to the movement or movement of the performer avatar 1. 【0151】 If there is no motion following setting (N in step S7), the process proceeds to step S11. If there is a motion following setting (Y in step S7), it is further determined whether or not the motion following condition is satisfied (step S8). 【0152】 In this embodiment 1, the motion tracking condition is a condition under which it is almost certain that the performer avatar 1 will no longer be displayed clearly on the display device 310. Specifically, when the head (or face) of the performer avatar 1 is within a specified range around the display area of ​​the display device 310, it is highly likely that the movement or motion of the performer avatar 1 will cause the head (face) to move outside the display area, causing it to no longer be displayed clearly, and therefore it is determined that the motion tracking condition is met. 【0153】 In this way, in the first embodiment, by determining that the motion tracking condition is met before the head (face) of the performer avatar 1 disappears from the display area, it is possible to significantly reduce the occurrence of the head (face) of the performer avatar 1 disappearing from the display area, but the present invention is not limited to this, and these motion tracking conditions may be a condition that the head (face) moves out of the display area, or other conditions may be used as the motion tracking conditions. In other words, any conditions may be used as the motion tracking conditions as long as they can prevent the performer avatar 1 from disappearing from the display area in a good manner. 【0154】 If the action tracking condition is met (Y in step S8), after disabling the viewpoint-related operations (step S12), the viewpoint image displayed in the display area of ​​display device 310 is automatically changed to a motion tracking viewpoint in which the head (face) of performer avatar 1 is within a non-metable range surrounded by a predetermined range around the display area, and the viewpoint image seen from the motion tracking viewpoint is displayed in the display area of ​​display device 310 (step S13). 【0155】 On the other hand, if the action tracking condition is not met (N in step S8), it is further determined whether or not the viewpoint-related operation is disabled (step S9). If the viewpoint-related operation is disabled (Y in step S9), the disabled viewpoint-related operation is enabled (step S10) and then the process proceeds to step S11. If the viewpoint-related operation is not disabled (N in step S9), the process proceeds to step S11 without going through step S10. 【0156】 In step 11, since the motion tracking setting is not set or the motion tracking condition is not satisfied, the viewpoint video of the viewer avatar is continuously displayed in the display area of ​​display device 310 (step S11). 【0157】 Also, as mentioned above, if the flying performance period in which the performer avatar 1 virtually flies during a live performance has begun, the answer in step S1 is determined to be Y, and the process proceeds to step S21, where it is determined whether or not it is the start timing of the flying performance period (step S21). 【0158】 If it is the start timing of the flying performance period (Y in step S21), the flying viewpoint image distributed from the distribution server computer 100 is displayed (step S22) in place of the viewer avatar's viewpoint image or action-tracking viewpoint image that was displayed in the display area of ​​the display device 310 before the start of the flying performance period, and then viewpoint-related operations are disabled (step S23) and the process returns to step S1. 【0159】 In this embodiment 1, during the flying performance period, the same flying viewpoint video is displayed on the viewer terminals 300 of all viewer users. Instead of generating the flying viewpoint video on each viewer terminal 300 side, as in the case of viewer avatar viewpoint videos which are different for each viewer user, the flying viewpoint video is generated on the distribution server computer 100 side and distributed to the viewer terminals 300. This allows the flying viewpoint video, which involves movement of the viewpoint in the air and therefore imposes a large rendering load on the viewer terminals 300, to be displayed well even on viewer terminals 300 with low processing capabilities. However, the present invention is not limited to this, and these flying viewpoint videos may be generated on the individual viewer terminals 300 side, in the same way as viewer avatar viewpoint videos. 【0160】 On the other hand, if it is not the start timing of the flying effect period (N in step S21), it is further determined whether it is the end timing of the flying effect period (step S24). 【0161】 Whether or not it is the end timing of the flying performance period may be determined based on data indicating the end contained in the flying viewpoint video data transmitted from the distribution server computer 100, or may be determined based on the aforementioned performance status data that is different from the flying viewpoint video. 【0162】 If it is not the end of the flying performance period (N in step S24), that is, if it is during the flying performance period, proceed to step S26, update the flying viewpoint video, and then return to step 1; on the other hand, if it is the end of the flying performance period (Y in step S24), enable viewpoint-related operations (step S25), proceed to step S11, display the viewer avatar's viewpoint video in the display area of ​​display device 310 in place of the flying viewpoint video that was displayed in the display area of ​​display device 310 during the flying performance period, and then return to step S1. 【0163】 Thus, each viewpoint video displayed on the viewer terminal 300 by executing the viewer viewpoint video control process shown in FIG. 20 in the viewer terminal 300 of the first embodiment will be described with reference to FIGS. 16 to 19. FIG. 【0164】 Fig. 16 is a diagram showing the display contents of the display device 310 when a zoom operation is performed on the viewer terminal 300 of the present embodiment 1. In the default state where no zoom operation is performed, as shown in Fig. 16(a), a viewpoint video of the video area centered on the upper body of the performer avatar 1 is displayed. In this default state, when the viewer user performs a zoom-up operation, for example, when the viewer terminal 300 is a smartphone P, by touching the "+" display (not shown), or when the viewer terminal 300 is a computer (PC), by operating the "+" key on the keyboard, as shown in Fig. 16(b), for example, a viewpoint video of the video area centered on the head (face) of the performer avatar 1 is displayed. 【0165】 On the other hand, if the viewer user performs a zoom-down operation, for example, by touching the "- " display (not shown) if the viewer terminal 300 is a smartphone P, or by operating the "- " key on the keyboard if the viewer terminal 300 is a computer (PC), a viewpoint image of the image area including the entire body of the performer avatar 1 will be displayed, as shown in Figure 16 (c), for example. 【0166】 In Figure 16, in order to make the zoom function easier to understand, the explanation was given using the viewpoint image of virtual camera C1 rather than the viewpoint of the viewer avatar, but as shown in Figure 17, zooming up and down can also be performed in the same way on the viewpoint of the viewer avatar. 【0167】 Also, although not described in detail in the viewer viewpoint image control process of Figure 20, for example, when performer avatar 1 appears on virtual stage G for the first time when a live performance begins, the viewpoint of the viewer avatar will not be directed toward performer avatar 1, and there is a possibility that the appearing performer avatar 1 will not be displayed on the viewer terminal 300 for a long period of time. Therefore, the period when performer avatar 1 first appears may be designated as an appearance performance period, and during this performance period, the viewpoint image displayed on the viewer terminal 300 may be automatically switched to the viewpoint image of virtual camera C1, etc., instead of the viewpoint image of the viewer avatar, and individual viewer users may be allowed to zoom in and perform other operations on the viewpoint images of virtual camera C1, etc. 【0168】 17 shows, as an example of a viewpoint image of a viewer avatar, the viewpoint image of viewer avatar 28 who is virtually participating in the fourth area. As shown in Fig. 17, the viewpoint image of viewer avatar 28 includes the heads of viewer avatar 13 and viewer avatar 14 who are virtually participating in the third area, and the image shows performer avatar 1 seen through the heads of viewer avatar 13 and viewer avatar 14. 【0169】 Therefore, the viewer user of viewer avatar 28 can enjoy the live performance by, for example, performing a zoom-in operation to change the image area so that the upper body of performer avatar 1 is displayed primarily, as shown in Figure 17(b), thereby preventing viewer avatar 13 and viewer avatar 14 from being displayed. 【0170】 However, in the zoomed-in state as shown in Figure 17(b), for example, as the live performance progresses and the performer avatar 1 begins to move and make large movements, if the viewer user is unable to properly change the viewpoint of the viewer avatar 28 to match the movements of the performer avatar 1, the performer avatar 1 may not be displayed properly, as shown in Figures 18(d)-(f).If the viewer user has to pay attention to adjusting the viewpoint, it may become difficult to concentrate on the live performance and they may not be able to enjoy it well. 【0171】 However, in this Example 1, when the viewer user sets the motion tracking setting as described above, as shown in Figures 18(a) to (c), the head of the performer avatar 1 enters within a specified peripheral area of ​​the display area, the motion tracking condition is met, the viewpoint is automatically changed to the motion tracking viewpoint, and the viewpoint image of the motion tracking viewpoint is displayed. Therefore, the viewer user does not need to pay attention to operating the viewpoint, and can concentrate on the live performance and enjoy it to the fullest. 【0172】 Then, as the live performance progresses and the flying performance period begins, as shown in Figure 19, the viewpoint images of the individual viewer avatars are automatically changed to flying viewpoint images seen from a virtual camera moving in the air, without any operation by the viewer user. 【0173】 Specifically, before the performer avatar 1 takes off in virtual flight, an image is displayed in which a wing object grows on the back of the performer avatar 1. Then, the performer avatar 1 looks up at a virtual aerial star object 50 virtually placed in the second area of ​​the virtual live venue, and the viewpoint of the viewer avatar moves in the same way. At this time, light effects 61 appear around the performer avatar 1. 【0174】 Thereafter, when the performer avatar 1 enters virtual flight, the viewpoint image displayed on the display device 310 automatically switches from the viewpoint image of the viewer avatar in FIG. 19(b) to a flying viewpoint image seen from a virtual camera moving in the air, as shown in FIG. 19(c). 【0175】 During the flying performance period, the aerial moving virtual cameras move within the second area based on a pre-set aerial trajectory as described above, and the flying viewpoint images seen from these aerial moving virtual cameras moving in the air are displayed on the display device 310 as shown in Figure 19(d). 【0176】 <Modification of Example 1> In the above Example 1, an example was given of a form in which a viewer avatar can move freely within the third or fourth area in which they are virtually participating. However, doing so may result in problems such as errors in the virtual space data due to, for example, different viewer avatars participating in the fourth area virtually colliding with each other or overlapping in the same virtual position. 【0177】 In order to solve such a problem, for example, a modification 1-1 shown in Fig. 21 and Fig. 22 may be used. Specifically, the third and fourth areas are divided into small areas as shown in Fig. 21, and the viewer user is asked which of these areas he or she will virtually participate in the virtual live show in when advance participation in the virtual live show is accepted (when reserving virtual participation) or when virtually participating in the virtual live show, as shown in Fig. 22. When the viewer user virtually participates with a viewer avatar, participation is only possible in the area selected in advance, and movement is restricted (prohibited) to be limited to within the selected area, thereby preventing errors in the virtual space data due to virtual collisions between viewer avatars or overlapping in the same virtual position, while also preventing excessive restriction of the movement of the viewer avatar. 【0178】 Specifically, as for the restriction (prohibition) of these movements, for example, in the case of a viewer user who has selected the area "H5" in FIG. 21 as the virtual participation location, when the viewer user performs an operation to move to any of the areas surrounding "H5", such as "G4~G6", "H4", "H6", or "I4~I6", the viewer terminal 300 will determine that the movement is to a prohibited area, and a warning message such as "You cannot move to the indicated position as it is beyond the permitted movement range" will be displayed on the viewer terminal 300, thereby restricting (prohibiting) the movement. On the other hand, with regard to movement within the "H5" area, the warning message will not be displayed and movement will be permitted, allowing the viewer user to move his or her viewer avatar within the area of ​​"H5" where he or she has virtually participated. 【0179】 The range in which movement is prohibited is not limited to the range of virtual participation described above. For example, in a situation where a group of multiple people is virtually participating in a virtual live show and the locations of the virtual participants are adjacent to each other, the range in which the viewer avatars participating in this group are virtually participating may be set as a movable range based on information indicating that they are a group. 【0180】 In the above-mentioned first embodiment, the general action (first action) is an action of the performer avatar 1 standing without moving to the virtual stage G, the special action (second action) is an action of the performer avatar 1 flying virtually, and the specific action (third action) is an action of the performer avatar 1 moving rapidly in the lateral direction. However, the present invention is not limited to this, and the actions may be actions according to the content to be distributed. For example, the general action (first action) may be an action (normal action) that the performer avatar performs for the longest period in the content to be distributed, the special action (second action) may be an action that is performed in a special period that is the shortest period in the content to be distributed or an action that is performed least frequently, and the specific action (third action) may be an action that is performed for a shorter period than the general action (first action) but for a longer period than the special action, or an operation that is performed less frequently than the general action (first action) but more frequently than the special action. The special action (second action) may include the specific action (third action). 【0181】 In addition, in the above-mentioned Example 1, an example was given of a form having both a function of switching the viewpoint corresponding to a special action (second action) and a function of following a specific action (third action), but the present invention is not limited to this, and the virtual space content distribution system may have only one of these functions. 【0182】 In the above-mentioned Example 1, an example was given of a form in which the viewpoint of the viewer user is changed and followed in accordance with the movements of the performer avatar, but the present invention is not limited to this, and for example, the change and tracking of the viewpoint may be performed in accordance with specific effects such as smoke or fireworks (pillars of fire) devices, special lighting, deformation of the virtual stage G, etc., which are effects on the virtual stage G. 【0183】 Although the above-mentioned modifications are described as modifications of the first embodiment, they can be applied not only to the first embodiment but also to the second embodiment described later. 【0184】 EXAMPLES 【0185】 Next, a virtual space content delivery system according to a second embodiment will be described below with reference to Fig. 23 to Fig. 32. Note that the same components as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted. 【0186】 The configuration of the virtual space content distribution system of the second embodiment is the same as that of the first embodiment shown in FIG. 1, but a distinctive feature of the second embodiment is that during a certain period of the virtual live performance, a viewer participation performance is executed in which viewer users who meet certain conditions can participate. 【0187】 23 is a diagram showing the progress of a virtual live performance delivered in the virtual space content delivery system of Example 2. First, the virtual live performance of Example 2 has a "live virtual space participation period" and a "pre-show speech" period as periods before the start of the virtual live performance, and during the live virtual space participation period, viewer users can virtually participate in the virtual live performance venue, which is the target virtual space of the virtual live performance. 【0188】 The period up to the end of the advance data DL timing, which is set just before the end of the "pre-show speech" period, is the advance data download (DL) period, and as shown in FIG. 10, in order to accurately generate viewer avatar viewpoint video on the viewer terminal 300, virtual space data (basic data) of the virtual live venue, avatar data of performer avatar 1, and avatar data of other viewer users who participated virtually during the live virtual space participation period are downloaded (DL) as advance data from the distribution server computer 100 to the viewer terminal 300 of the viewer user who participated virtually during the live virtual space participation period. 【0189】 During the "pre-show speech" period in the second embodiment, explanations about the virtual live show are given by video footage, etc. Therefore, by making the "pre-show speech" period a period during which advance data can be downloaded (DL), each viewer terminal 300 can also download (DL) from the distribution server computer 100 the avatar data of a viewer avatar who virtually participated in the live virtual space just before the end of the participation period. 【0190】 As shown in FIG. 23, the virtual live performance in Example 2 progresses as follows: "Opening performance" → "First MC" → "First performance" → "Second MC" → "Second performance" ... "nth MC" → "nth performance" ... "Final performance" → "Ending MC" → "Ending performance", and after the virtual live performance ends, there is a live virtual space exit period for each viewer avatar to exit the virtual live venue. 【0191】 The "opening performance" is a performance in which the performer avatar 1 appears on the virtual stage G. The "first MC" is a performance in which the performer avatar 1 appears on the virtual stage G, greets the audience through a talk, and introduces the first performance that will be performed first. The "first performance" is a performance that includes singing and dancing by the performer avatar 1 (performer), and also includes the flying performance of Example 1, which is a first special performance in the middle of the performance, in which the performer avatar 1 is virtually flying around the virtual live venue, captured virtually from a virtual camera moving in the air. 【0192】 In the "second MC", performer avatar 1 (performer) mainly introduces the second performance through a talk. Similarly, in each MC such as the "nth MC", performer avatar 1 gives his / her impressions of the performance that has just finished, and introduces each performance that will be performed after each MC. Like the "first performance", the "second performance" includes singing and dancing by performer avatar 1 (performer). 【0193】 In this way, the virtual live performance is structured so that between each performance, which includes singing and dancing by the performer avatar 1 (performer), there is an MC period in which the performer avatar 1 (performer) introduces each performance through talk, and the schedule of this progression and the timing of each of the various MCs and performances, etc. are managed by being described in the timetable data (TT data) 112, as in Example 1. 【0194】 During the performance period of the "nth performance" in the second embodiment, as shown in FIG. 23, a second special effect is executed as a viewer participation effect in which viewer avatars can participate. 【0195】 In this second special performance, viewer avatars can participate in the performance by purchasing Chemical Light K (hereinafter referred to as Chemilight K) in advance using points owned by individual viewer users, and the image of the viewer avatar performing the Chemilight action (the action of shaking the Chemilight K from side to side) is displayed as an image on virtual displays 41, 42 that are virtually installed in front of the virtual stage wall, as shown in Figure 25. 【0196】 In addition, Figure 25 shows a viewer avatar participating in the third area performing the chemilight action, but viewer avatars participating in the fourth area, which is described as a simplified display, can also perform the chemilight action by purchasing Chemilight K in advance, just like viewer avatars participating in the third area. 【0197】 In addition, after the final performance, an ending MC is executed in which performer avatar 1 (performer) greets the viewer users through a talk, and during the ending MC, a third special performance is executed as a viewer participation performance in which the viewer avatar can participate. 【0198】 In the third special performance of Example 2, an image of a viewer avatar who has pre-purchased a placard PK or a T-shirt TS with an image of performer avatar 1, which are virtual items that can be purchased during the virtual live performance, is displayed on virtual displays 41 and 42 by the viewer user performing a specified operation, as shown in Figure 27, thereby allowing the viewer avatar (viewer user) to participate in the performance. 【0199】 When the ending MC ends, an ending performance is executed in which the performer avatar 1 (performer) exits the virtual live venue (virtual stage G), and the virtual live ends. After the virtual live ends, a live virtual space exit period is set up for viewer users who participated in the virtual live to exit the virtual live venue. 【0200】 In addition, in the virtual live venue of Example 2, virtual cameras C5 and C6 for virtually capturing images of viewer avatars during the second special performance and the third special performance are provided at coordinate positions close to virtual camera C2, and the viewpoint images from virtual cameras C5 and C6 are displayed on virtual displays 41 and 42 during the second special performance and the third special performance. 【0201】 Of these virtual cameras C5 and C6, virtual camera C5 mainly corresponds to virtual display 41, virtual camera C6 mainly corresponds to virtual display 42, and the viewpoint video of virtual camera C5 is mainly displayed on virtual display 41, and the viewpoint video of virtual camera C6 is mainly displayed on virtual display 42. In this way, in the second embodiment, a form in which two virtual cameras C5 and C6 are provided corresponding to virtual display 41 is exemplified, but the present invention is not limited to this, and a form in which only one virtual camera C5 is provided, or a form in which three or more virtual cameras are provided according to the position of the viewer avatar, may also be used. 【0202】 FIG. 28 is a diagram showing a participant user table stored in the distribution server computer 100 of the second embodiment. 【0203】 The participant user table is a data table used to identify the participation status of viewer users in virtual live events and the purchase status of virtual items for each virtual live event registered in the event data shown in Figure 7, and as shown in Figure 28, it is a table that can store, in correspondence with a participant ID (viewer user ID), participation identification data (participation identification flag) that can identify the participation status of the viewer user, the participation area of ​​the viewer user (only in the case of participation), participant coordinates that can identify the position in the virtual live venue where the viewer avatar of the participant (viewer user) is located at that time, data for purchased item 1 that can identify whether or not the virtual item Chemilight K has been purchased, data for purchased item 2 that can identify whether or not the virtual item Placard PK has been purchased, data for purchased item 3 that can identify whether or not the virtual item T-shirt TS has been purchased, and lottery result data that can identify whether or not the participant has won the lottery that is a condition for participation in the second special performance. 【0204】 In the participant ID field, all viewer user IDs of the expected participants described in the file of each participant group stored in the event data corresponding to the virtual live are registered. In addition, the participation identification data (participation identification flag) is registered as "0" corresponding to a non-participant state when the participant ID (viewer user ID) is registered, and is updated to "1" indicating participation when the participation of each participant (viewer user) is permitted by authentication during the live virtual space participation period. Therefore, in the example shown in FIG. 34(A), it can be identified that the viewer user "MID-00007" whose participation identification data (participation identification flag) is "0" is not participating in the virtual live for some reason. 【0205】 The participation area data is data that can identify whether the participation area of ​​each participant (viewer user) is the third area or the fourth area, and is registered when the participation of each participant (viewer user) is permitted by authentication. The participant coordinate data is data that is updated sequentially in the virtual space update process, and is coordinate data of the location where the viewer avatar of each participant (viewer user) is located within the virtual live venue. Therefore, from the coordinate data, the position within the virtual live venue where each viewer avatar is located at that time can be easily identified, and the direction for virtually capturing an image of each viewer avatar from the virtual cameras C5 and C6 can be easily identified. 【0206】 The data of purchased item 1 is updated from "0" indicating that it has not been purchased to "1" indicating that it has been purchased in response to the purchase of chemilite K. Therefore, as described above, only the viewer avatar of a viewer user whose data of purchased item 1 is "1" can perform chemilite actions, and in response to the execution of an operation corresponding to the execution of such a chemilite action, for example, the selection operation of an action item corresponding to "chemilite action" displayed on the viewer terminal 300, the validity or invalidity of the operation is determined in the delivery server computer 100 based on the data of purchased item 1. 【0207】 Similarly, the data for purchased item 2 is updated from "0" indicating that it has not been purchased to "1" indicating that it has been purchased in response to the purchase of the placard PK. The data for purchased item 3 is updated from "0" indicating that it has not been purchased to "1" indicating that it has been purchased in response to the purchase of the T-shirt TS. When the third special performance is executed, the data for purchased item 2 and the data for purchased item 3 are determined in the distribution server computer 100 based on the data for purchased item 2 and the data for purchased item 3 in response to the viewer user performing an operation corresponding to performing an action using the purchased placard PK or T-shirt TS, for example, a selection operation of an action item corresponding to the "placard PK" or "T-shirt TS" displayed on the viewer terminal 300, whether the operation is valid or invalid. 【0208】 In other words, when the data for purchased items 1 to 3 in the participating user table is "1", this indicates that the points (value) required to purchase the virtual items needed for the second special performance and the third special performance have already been paid, and that payment of points (value) for displaying one's own viewer avatar on virtual displays 41 and 42 in the second special performance and the third special performance has been completed. 【0209】 In addition, in Example 2, the action performed by the viewer avatar in response to the corresponding operation of the "Placard PK" is not limited to the action of holding up the "Placard PK" as performed by viewer avatar 13 in Figure 26, but is an action corresponding to the personality information of the viewer avatar pre-registered by the viewer user, such as the action of holding up the "Placard PK" to the chest as performed by viewer avatar 11 in variant example 2-1 shown in Figure 33 described below. However, the present invention is not limited to this, and the actions performed by the viewer avatar in response to these corresponding operations of the "Placard PK" may be a single common action for all viewer avatars. 【0210】 In addition, in the second embodiment, the "placard PK" is designed so that the viewer user who purchases it can write characters on the surface of the placard by inputting them within the maximum character limit, but the present invention is not limited to this, and the placard may have predetermined text to be displayed. 【0211】 In addition, in Example 2, the action performed by the viewer avatar in response to the corresponding operation of "T-shirt TS" is the action of the viewer avatar wearing "T-shirt TS" raising both hands, as performed by viewer avatar 28 in Figure 26 and viewer avatar 12 in variant example 2-1 shown in Figure 33 described later. 【0212】 In addition, in Example 2, an example is given in which the virtual items that can be purchased in a virtual live are the three items mentioned above, but the present invention is not limited to this, and the number of virtual items that can be purchased in a virtual live may be two or less (including 0), or four or more. 【0213】 In addition, in the second embodiment, the above-mentioned virtual items are made available for purchase during the period before the start of the virtual live performance when the processing load on the distribution server computer 100 is relatively small, that is, during the period from when the viewer user joins the virtual live performance venue to when the virtual live performance starts; however, the present invention is not limited to this, and such purchase may be made available before the viewer user joins the virtual live performance venue, or may even be made available after the start of the virtual live performance in cases where an increase in the processing load on the distribution server computer 100 can be avoided by, for example, providing a dedicated server computer that processes the purchase of virtual items separately from the distribution server computer 100. 【0214】 Furthermore, items that can be purchased in the virtual live are not limited to virtual items. For example, it may be possible to purchase rights items such as a participation right to participate in the third special performance, or a lottery participation right to participate in a lottery to participate in the third special performance, and when such a right to participate in the third special performance is purchased, an image captured by virtual camera C5 of a viewer avatar at the time the third special performance is being performed, who is not holding a "placard PK" or wearing a "T-shirt TS", etc., may be displayed on virtual displays 41 and 42. 【0215】 The lottery result data in the participant user table is data that is updated by the viewer performance lottery process shown in Figure 29, which selects the viewer users to be displayed on the virtual displays 41 and 42 in the second special performance, and the data of the viewer users extracted as winners by the viewer performance lottery process is updated from "0", indicating a non-winner, to "1", indicating a winner. 【0216】 Here, the viewer effect lottery process executed in the distribution server computer 100 of the second embodiment will be described with reference to Fig. 29. In the viewer effect lottery process, first, it is determined whether or not it is time for a viewer effect lottery (step S100). 【0217】 In addition, in Example 2, the timing of the viewer performance lottery is set to the start timing of the nth MC, which is executed immediately before the start of the nth performance in which the second special performance, which is the subject of the lottery, is executed, as shown in Figure 31. By setting the period of the nth MC in this manner in which the processing load on the distribution server computer 100 is relatively smaller than during the performance period, it is possible to prevent the processing load on the distribution server computer 100 from becoming excessive due to the execution of the viewer performance lottery process. However, the present invention is not limited to this, and the timing of execution of these viewer performance lottery processes may be any timing before the execution of the second special performance, which is the subject of the lottery, and which does not cause the processing load on the distribution server computer 100 to become excessive. 【0218】 When the timing for starting the nth MC arrives, it is determined that it is time for the viewer performance lottery (Y in step S100), and the viewer user IDs of all participant users who satisfy the lottery conditions, i.e., viewer users participating in the virtual live show and who have purchased Chemilight K and whose data for purchased item 1 is set to "1", are extracted from the participant user table and set as the people to be selected in the lottery (step S101). 【0219】 Then, from the set viewer user IDs, a preset number of winners are randomly selected to determine winners from the lottery recipients, and the lottery result data registered in the participant user table in correspondence with the selected viewer user IDs is updated from "0" to "1," thereby registering the lottery result in the participant user table (step S102). 【0220】 Next, the flow of how the video of the viewer user is displayed on the virtual displays 41 and 42 in the second special performance will be described below with reference to Fig. 30. Note that Fig. 30 is an explanatory diagram showing the processes executed by the distribution server computer 100 and the viewer terminal 300 and the information transmitted and received in the second special performance. 【0221】 In the virtual live performance of Example 2, when the second special performance begins during the nth performance, the distribution server computer 100 identifies the viewer users who were selected in the viewer performance lottery process based on the lottery result data registered in the participant user table, and determines the performance targets who will participate in the second special performance from among the identified winning viewer users. 【0222】 In the following description, in order to avoid repetition, the virtual display 41 will be taken as an example, and the virtual display 42 will be indicated in parentheses. 【0223】 Next, to the viewer terminal 300 used by the determined target person (viewer user), specific operation instruction information is sent to instruct the viewer terminal 300 to perform a selection operation for an action item of the chemi-light action, which is a specific operation for causing the viewer avatar to perform the chemi-light action, which is an action corresponding to the display of the viewer image on the virtual display 41 (42). 【0224】 In response to receiving the predetermined operation instruction information transmitted in this manner, the viewer terminal 300 displays a predetermined operation instruction display, specifically, an instruction display instructing a selection operation of an operation item of a chemi-light operation. 【0225】 Then, within a predetermined period (e.g., 5 seconds) after the start of the instruction display, the presence or absence of a selection operation of the action item of the chemi-lighting action is identified, and predetermined operation specification information capable of identifying whether or not the selection operation has been performed within the predetermined period is transmitted to the distribution server computer 100. Note that, in the case where the above-mentioned operation corresponding to the chemi-lighting action is performed before the predetermined period has elapsed, predetermined operation specification information capable of identifying that the operation has been performed at the timing of the execution is transmitted, and in the case where the above-mentioned operation corresponding to the chemi-lighting action is not performed, predetermined operation specification information capable of identifying that the above-mentioned operation corresponding to the chemi-lighting action has not been performed is transmitted at the timing when the predetermined period has elapsed. 【0226】 Furthermore, when the above-mentioned operation corresponding to the chemi-lighting action is executed, the operation is accepted as an avatar action operation, as shown in Figure 10, and viewer avatar information for causing the viewer avatar to perform the chemi-lighting action is also transmitted to the distribution server computer 100. 【0227】 Meanwhile, the distribution server computer 100 that sent the specified operation instruction information identifies the avatar data of the target person (viewer user) and identifies the position (coordinates) where the viewer avatar of the target person (viewer user) is participating from the participant user table. 【0228】 The reason for identifying and making available in advance the avatar data of the target person (viewer user) of the performance is that there may be cases where the target person (viewer user) is displayed as a simplified viewer avatar in which the avatar's body shape, etc. is simplified, rather than as a normal viewer avatar that is not simplified, in the viewpoint images of virtual cameras C2 to C4, for example, like viewer avatar 25 shown in the third special performance described below, so that the image of the chemilight operation by the normal viewer avatar, rather than the simplified viewer avatar, can be quickly displayed on the virtual display 41 (42). 【0229】 In addition, the position (coordinates) at which the viewer avatar is participating is also determined in advance in the direction in which the virtual camera C5 (C6) will capture the image, so that the image of the viewer avatar's chemilight action can be quickly displayed on the virtual display 41 (42). 【0230】 In response to receiving the specified operation specification information transmitted from the viewer terminal 300, the distribution server computer 100 determines whether or not the above-mentioned operation (specified operation) corresponding to the chemilight action has been performed from the received specified operation specification information, and if it determines that the operation has not been performed, it newly determines the next target person for the performance from among the viewer users who were selected in the viewer performance lottery process, and repeats the process of transmitting the above-mentioned specified operation instruction information. 【0231】 On the other hand, if the operation is identified as "executed," an image of the viewer avatar performing the chemilight operation is generated, which is a viewpoint image of the position (coordinates) where the viewer avatar is participating, seen from virtual camera C5 (C6), which is a virtual camera corresponding to the participation position of the person being performed, and the generated image is displayed on virtual display 41 (42). 【0232】 In addition, the viewpoint image viewed from the virtual camera C5 (C6) generated as described above will include other viewer avatars other than the target viewer avatar. In this embodiment 2, as shown in FIG. 25, an image is generated in which the other viewer avatars are omitted by a star effect image, that is, an image including the target viewer avatar performing the chemilight operation and a star effect, thereby preventing inconveniences such as other viewer avatars being displayed on the virtual display 41 (42). For example, some viewer users do not want to make their avatars public, so this prevents inconveniences such as offending the viewer users and increases the sense of exclusivity of the target viewer avatar for the viewer user. 【0233】 In other words, although a viewer user who has purchased Chemilight K can have the viewer avatar perform the chemilight action, not all viewer users can participate in the second special performance. Therefore, if the viewer avatar of the viewer user selected as the performance target (viewer user) is displayed on virtual displays 41 and 42 without performing any action, there is a risk that the interest in the second special performance will be diminished. Therefore, by sending predetermined operation instruction information in advance before generating the viewer video, the viewer user is made to perform a selection operation (predetermined operation) for the action item of the chemilight action, and an image of the viewer avatar performing the chemilight action is displayed on virtual displays 41 and 42, thereby preventing the interest in the second special performance from being diminished. 【0234】 Although not shown in FIG. 30, in the second embodiment, an upper limit is set for the period during which the image of the viewer avatar of the first performance target is displayed on the virtual display 41 (42), and when the upper limit has elapsed, the next performance target is selected and the image of the viewer avatar of the next performance target is displayed, thereby displaying images of viewer avatars performing multiple chemical light actions during the period of the second specific performance, as shown as 1→2→3→4→5... in FIG. 32. 【0235】 In addition, in Example 2, the flow shown in Figure 30 is executed separately on virtual display 41 and virtual display 42, and images of different viewer avatars are displayed on virtual display 41 and virtual display 42, allowing more viewer avatars to participate in the second special performance. However, the present invention is not limited to this, and images of the same viewer avatar may be displayed on virtual display 41 and virtual display 42. 【0236】 Figure 32 (A) is an explanatory diagram showing the change in the display content of virtual displays 40, 41, 42 during the nth performance in which the second special performance is executed. During the nth performance until the second special performance begins, star effect images related to performer avatar 1 are all displayed as performance images on virtual displays 40, 41, 42. 【0237】 When the second special performance starts, as shown in Fig. 25, a thank-you video including the message "Thank you always" is displayed on virtual display 40 in the center of virtual stage G, and videos of viewer avatars performing chemilight actions are displayed on virtual displays 41 and 42. Note that in the second special performance, the video of only one viewer avatar is not continuously displayed on virtual displays 41 and 42, but the viewer avatar is changed in sequence to display videos of multiple viewer avatars. 【0238】 Then, when the second special performance ends, the display of the thank-you video ends and the performance video starts again on virtual display 40, and the display of the viewer avatar video ends and the performance video starts again on virtual displays 41 and 42. The videos displayed on these virtual displays 41 and 42 are reflected in the viewer avatar viewpoint video by being reflected in the virtual space update data. 【0239】 In other words, the distribution server computer 100 determines whether or not the second special performance has ended based on the time schedule described in the timetable data (TT data) 112, and when the second special performance has ended, executes a process to erase the video display of the viewer avatar on the virtual displays 41, 42 and start displaying the performance video. 【0240】 In addition, in Example 2, when the second special performance ends, the performance images such as effect images are displayed again, but instead of these performance images, it is also possible to display a specific image related to a specific performance aimed at the viewer users who participated in the second special performance, which is a viewer participation performance. 【0241】 Next, the flow in which the viewer user's video is displayed on the virtual displays 41 and 42 in the third special effect will be described below with reference to Fig. 31. Note that the third special effect differs from the second special effect described above in that participation in the effect does not require winning a lottery, and the viewer user can participate at will by operating the device during the effect period. Note that a lottery may also be held in the third special effect, just like the second special effect. 【0242】 In the virtual live performance of the second embodiment, when the third special performance starts during the ending MC, the distribution server computer 100 transmits to each viewer terminal 300 display instruction information for displaying a display indicating that the performance participation operation is possible. 【0243】 In response to receiving the display instruction information transmitted (distributed) from the distribution server computer 100, the viewer terminal 300 displays a display indicating that the performance participation operation is possible for a predetermined period of time (e.g., 5 seconds) to notify the viewer that the performance participation operation is possible to participate in the performance. 【0244】 When a performance participation operation is performed within a specified period during which the display indicating that the performance participation operation is possible is displayed, performance participation operation information including the viewer user ID of the viewer user who operated the viewer terminal 300 is transmitted from the viewer terminal 300 to the distribution server computer 100. 【0245】 In the second embodiment, the operation for participating in the performance is specifically an operation such as selecting an action item corresponding to the action of holding up a placard PK for a viewer user who has purchased a placard PK as a virtual item, and an operation such as selecting an action item corresponding to the action of putting on the T-shirt TS and raising both hands for a viewer user who has purchased a T-shirt TS as a virtual item. However, the present invention is not limited to this, and for example, during the period when the operation for participating in the performance is displayed, the action item for "action of participating in the performance" may be displayed and the operation may be accepted regardless of the virtual item purchased. 【0246】 In response to receiving the performance participation operation information, the distribution server computer 100 determines whether or not the viewer user is eligible to participate, based on the viewer user ID included in the received performance participation operation information. 【0247】 Specifically, to determine whether or not the participant is eligible to participate, if either the data for purchased item 2 or the data for purchased item 3 stored in the participant user table in correspondence with the viewer user ID included in the received performance participation operation information is set to "1", indicating that the item has been purchased, then the participant is determined to be "eligible," and if the data is set to "0", indicating that the item has not been purchased, then the participant is determined to be "eligible." 【0248】 If it is determined that the participant is eligible to participate, the viewer user ID to be determined is stored in the order of determination as a participant in the performance, and the participation position within the virtual live venue where the viewer avatar of that viewer user ID (viewer user) is located is identified from the participant coordinate data in the participant user table, a viewpoint image of the identified participation position is generated from virtual camera C5 (C6), and the generated image is displayed on virtual display 41 (42). 【0249】 The viewpoint image generated in this manner includes a viewer avatar performing an action corresponding to the performance participation operation performed by the viewer user, such as holding a placard PK over his head as shown in Figure 26, or wearing a T-shirt TS and raising both hands as shown in Figure 27. 【0250】 In the example shown in Figure 27, the viewer avatar of the viewer user participating in the fourth area, including the viewer avatar 25 wearing a T-shirt TS and raising both hands, is displayed as a simplified viewer avatar in the images of virtual cameras C2 to C4 and the viewpoint images of each viewer avatar, for example, as in the image of virtual camera C2 shown in Figure 24, by being drawn as a simplified viewer avatar in the images of virtual cameras C2 to C4 and the viewpoint images of each viewer avatar.However, even if the viewer avatar is displayed as a simplified viewer avatar in each viewpoint image during the virtual live broadcast, the viewpoint image from virtual camera C5 (C6) is an image drawn as a non-simplified, high-definition normal viewer avatar 25, as shown in Figure 26 (B). 【0251】 Furthermore, in generating these images, as in the case of the second special performance, other viewer avatars other than the target viewer avatar will also be included in the viewpoint image from virtual camera C5 (C6); however, in this second embodiment, as shown in Figures 26 and 27, an image is generated in which the other viewer avatars are omitted by a star effect image, that is, an image including the target viewer avatar holding a placard PK above its head or raising both hands while wearing a T-shirt TS, and a star effect, thereby preventing the other viewer avatars from being displayed on virtual display 41 (42) and enhancing the sense of specialness of the viewer user of the target viewer avatar. 【0252】 Furthermore, the image of the first viewer avatar displayed on virtual display 41 (42) is not displayed continuously during the period of the third special performance, but is switched to the image of the next viewer avatar who is determined to be eligible to participate when a specified maximum period (e.g., 5 seconds) has elapsed.As a result, as shown in Figure 32 as 1 → 2 → 3 → 4 → 5..., the images of multiple viewer avatars are displayed sequentially on virtual display 41 (42) during the period of the third specific performance. 【0253】 FIG. 32(B) is an explanatory diagram showing changes in the display contents of the virtual displays 40, 41, and 42 during the ending MC in which the third special performance is executed and the ending performance executed following the ending MC. 【0254】 During the ending MC before the start of the third special performance, the central virtual display 40 displays video for the MC, specifically, video including information such as the date of the next virtual live performance by performer avatar 1, and virtual displays 41 and 42 display viewpoint video from virtual camera C1, which is video of performer avatar 1 performing the MC (talk). 【0255】 Then, when the third special performance starts, the central virtual display 40 displays a return video including a message "Come again!" as shown in Fig. 27, and the virtual displays 41 and 42 display, for example, a video of a viewer avatar 25 wearing a T-shirt TS and making a T-shirt gesture with both hands raised above his head, and a video of a viewer avatar 13 making a placard gesture by holding a placard PK above his head. Note that in the third special performance, as in the second special performance, the video of only one viewer avatar is not continuously displayed on the virtual displays 41 and 42, but rather, as shown in Fig. 32(B) as 1 → 2 → 3 → 4 → 5 ..., the video of multiple viewer avatars is displayed by sequentially changing the viewer avatar. 【0256】 Then, when the third special performance and the ending MC are finished, the virtual displays 40, 41, 42 all start displaying the video of the ending performance that is about to start. These ending performance videos are displayed across the virtual displays 40, 41, 42, and are capable of making an impact on the viewer by using the three virtual displays 40, 41, 42 as if they were one display. The videos displayed on the virtual displays 40, 41, 42 are reflected in the virtual space update data, and are therefore also reflected in the viewer avatar viewpoint video. 【0257】 In other words, the distribution server computer 100 determines whether or not the third special performance has ended based on the time schedule described in the timetable data (TT data) 112, and when the third special performance has ended (the end of the nth performance period), it erases the video display of the viewer avatar on the virtual displays 41, 42 and executes a process to start displaying the video of the ending performance. 【0258】 As described above, according to the virtual space content distribution system of Example 2, virtual camera viewpoint images seen from virtual cameras C5 and C6 installed in the virtual live venue are displayed on virtual displays 41 and 42, which are virtual display areas, making it easier for viewer users to get the feeling that they are participating in the virtual live performance, thereby increasing the interest of the viewer users. 【0259】 In addition, the virtual camera viewpoint images seen from virtual cameras C5 and C6 are generated based on operations being executed on the viewer terminal 300 to have the viewer avatar perform the actions of waving a chemilite K, holding a placard PK above his head, and wearing a T-shirt TS and raising both hands above his head. Therefore, since the virtual camera viewpoint images include the viewer avatar performing each of the above actions, the viewer user can more easily get the feeling that he or she is participating in a virtual live performance, further increasing the viewer user's interest. 【0260】 In addition, in the above-mentioned Example 2, on the condition that specific operation instruction information, which is instruction information that instructs the viewer avatar to perform an operation to perform a chemilighting operation, is transmitted, virtual camera viewpoint images as seen from virtual cameras C5 and C6 are displayed on virtual displays 41 and 42. Therefore, it is possible to prevent a virtual camera viewpoint image in which a chemilighting operation is not being performed from being displayed on the viewer terminal 300 due to the viewer user not performing an operation. 【0261】 Furthermore, in the second special performance of the above-mentioned Example 2, virtual camera viewpoint images seen from virtual cameras C5 and C6 are displayed on virtual displays 41 and 42 on the condition that a viewer avatar is selected by lottery from among the multiple viewer avatars participating in the virtual live venue, so that viewer users will pay attention to which viewer avatar is selected, further increasing the viewer users' interest. 【0262】 Furthermore, in the second and third special effects of the second embodiment described above, virtual camera viewpoint images from virtual cameras C5 and C6 are displayed on virtual displays 41 and 42 on the condition that payment of the points (value) required to purchase the virtual items corresponding to each effect has been completed, thereby preventing a decrease in interest due to the virtual camera viewpoint images of viewer users who have not purchased any virtual items due to a low desire to participate in the virtual live performance being displayed on virtual displays 41 and 42, as seen from virtual cameras C5 and C6. 【0263】 Furthermore, in the third special performance of the above-mentioned Example 2, on the viewer terminal 300, a special operation is performed to display the virtual camera viewpoint image as seen from the virtual cameras C5, C6 on the virtual displays 41, 42 without the need for winning a lottery, etc., and provided that an operation corresponding to the action of holding the placard PK above the head and an operation corresponding to the action of putting on the T-shirt TS and raising both hands above the head are performed, the virtual camera viewpoint image with the viewer's own avatar as the subject is displayed on the virtual displays 41, 42, thereby further increasing the interest of the viewer user. 【0264】 Furthermore, in the above-mentioned second embodiment, during the third special performance in the ending MC, which is a specific period during the virtual live, by performing an operation corresponding to the action of holding the above-mentioned placard PK above one's head or an operation corresponding to the action of putting on the T-shirt TS and raising both hands above one's head, a virtual camera viewpoint image with one's own viewer avatar as the subject is displayed on the virtual displays 41, 42, so that the viewer user will pay attention to whether or not the period of the third special performance has begun, thereby further increasing the viewer user's interest. 【0265】 Furthermore, in the above-mentioned Example 2, when virtual camera viewpoint images as seen from virtual cameras C5, C6 are generated in the second special performance and the third special performance, viewer avatars other than the viewer avatar that is the subject of the image are not drawn, thereby restricting their display on virtual displays 41, 42 (not being displayed), thereby preventing inconvenience caused by other viewer avatars being inadvertently displayed on virtual displays 41, 42 and enhancing the sense of exclusivity felt by the viewer user of the viewer avatar that is the subject of the image. 【0266】 Furthermore, in the above-mentioned second embodiment, when virtual camera viewpoint images seen from virtual cameras C5 and C6 are generated in the second and third special effects, even if the avatar is displayed as a simplified viewer avatar in the virtual live video, it is drawn as a normal viewer avatar that is not simplified and displayed on virtual displays 41 and 42, thereby preventing the viewer user's interest from being reduced by his or her own avatar being displayed as a simplified viewer avatar on these virtual displays 41 and 42. 【0267】 In addition, in the above-mentioned second embodiment, various performance images of the virtual live are virtually displayed on the virtual displays 41 and 42, and in the third special performance, on the condition that the viewer user performs an operation corresponding to the action of holding the placard PK above his head or an operation corresponding to the action of putting on the T-shirt TS and raising both hands above his head, an image of a viewer avatar (special image) is displayed on the virtual displays 41 and 42. Then, in response to the start of the ending performance, an ending image which is a performance image corresponding to the ending performance is displayed as shown in FIG. 32. In this way, by displaying various performance images on the virtual displays 41 and 42, a variety of performances can be executed, which makes it possible to increase the interest of the virtual live, and since an image of a viewer avatar (special image) is displayed on the virtual displays 41 and 42, the viewer user can easily get the feeling that he is participating in the virtual live, thereby increasing the interest of the viewer user. Furthermore, even if the image of the viewer avatar (special image) is displayed, the display of the image of the viewer avatar (special image) is restricted and the ending image, which is a specific performance image, is displayed, thereby preventing the ending image from being hidden due to the display of the image of the viewer avatar (special image). 【0268】 In addition, in Example 2, the special image based on the viewer user is exemplified as a viewpoint image of a viewer avatar seen from virtual cameras C5 and C6 installed in the virtual live venue, but the present invention is not limited to this, and may be, for example, an image of a viewer avatar registered in advance by the viewer user in a special pose, an image taken together with the performer avatar 1, or an image that does not include these viewer avatars, such as an image of text such as a message entered by the viewer user. 【0269】 <Modification of Example 2> In the above-mentioned second embodiment, in the second and third special performances in which a viewer avatar can participate, an example is given of a form in which the image of the viewer avatar is not displayed on the central virtual display 40, but the present invention is not limited to this. For example, as shown in variant example 2-1 in FIG. 33, the image of the viewer avatar may also be displayed on the central virtual display 40, similar to virtual displays 41 and 42. In this case, in order to display more viewer avatars, the central virtual display 40 may be divided into a plurality of display areas, and a different viewer avatar may be displayed in each of the divided display areas. 【0270】 It should be noted that not only the central virtual display 40 but also the virtual displays 41 and 42 may be divided into a plurality of display areas so that images of more viewer avatars can be displayed. 【0271】 In addition, in the above-mentioned Example 2, the participation conditions for the second special performance include winning the lottery, but the present invention is not limited to this, and the performance may be in a form in which these lotteries are not executed. 【0272】 Furthermore, in the above-mentioned second embodiment, an example is given of a form in which if an operation corresponding to a chemilight action is not performed within a predetermined period, the second special performance cannot be participated in, i.e., the participation condition is the execution of an operation corresponding to a chemilight action within a predetermined period, but the present invention is not limited to this, and the viewer avatar of a viewer user who has not performed an operation corresponding to a chemilight action within a predetermined period may also be allowed to participate in the second special performance and displayed on virtual displays 41, 42. In such a case, a form may be used in which the predetermined operation instruction information is not transmitted, in which case the transmission of the predetermined operation instruction information is excluded from the participation condition. 【0273】 In addition, in the above-mentioned Example 2, the conditions for participating in the second special effect and the third special effect include completion of payment of the points (value) required to purchase the virtual item corresponding to the effect, but the present invention is not limited to this, and viewer avatars that have not purchased a virtual item, etc. may also be allowed to participate in the second special effect and the third special effect. 【0274】 In addition, in the above-mentioned Example 2, an example is given of a form in which the conditions for participation in the third special performance are to perform an operation corresponding to the action of raising the placard PK above the head and to perform an operation corresponding to the action of raising both hands above the head while wearing the T-shirt TS, but the present invention is not limited to this. For example, as described below, in a case in which the event manager M selects the viewer users who will participate based on a message on the placard PK, the selected viewer users may be able to participate in the third special performance without performing an operation corresponding to the action of raising the placard PK above the head. 【0275】 In addition, in the above-mentioned Example 2, an example is given in which only one period of the third special performance, which is a special period, is set during the virtual live, but the present invention is not limited to this, and it is also possible to set multiple periods of these third special performances. 【0276】 In addition, in the above-mentioned Example 2, in the second special performance and the third special performance, other viewer avatars than the viewer avatar allowed to participate as the subject are not displayed on the virtual displays 41, 42, but the present invention is not limited to this, and, for example, these other viewer avatars may be displayed as simplified viewer avatars. 【0277】 In addition, in the above-mentioned Example 2, an example is given of a form in which the viewer avatars virtually participating in area 4 are rendered as simplified viewer avatars, but the present invention is not limited to this, and all of these virtually participating viewer avatars may be rendered as normal viewer avatars, without using simplified viewer avatars. 【0278】 In addition, in the above-mentioned second embodiment, in the second special performance and the third special performance, the video of the viewer avatar is simply displayed on the virtual displays 41, 42, but the present invention is not limited to this. The video data of the viewer avatar displayed on these virtual displays 41, 42 may be stored in the distribution server computer 100 or in a management server computer for viewer management that is communicatively connected to the distribution server computer 100, and the stored video data may be distributed (transmitted) to the viewer terminal 300 used by the viewer user of the viewer avatar included in the video during or after the virtual live performance, so that the viewer user can obtain the video data as a memento of the virtual live performance. 【0279】 In other words, the virtual space content delivery system may include a viewer avatar image providing means that can transmit image data of the viewer avatar images displayed on virtual displays 41 and 42 to viewer terminal 300 and provide the image data to the viewer user. 【0280】 In addition, in the viewer-enhanced lottery process in Example 2 described above, an example is shown in which each viewer user who has pre-purchased the virtual item Chemilite K is drawn with the same probability, but the present invention is not limited to this. For example, the probability of winning may change depending on the purchase status of virtual items other than Chemilite K and the total number of points used for purchases, etc. Specifically, the probability of winning may change depending on the viewer user's purchasing history, such that a viewer user who has purchased a large number of virtual items or a viewer user who has used a large number of total points for purchases has a higher probability of winning and is therefore more likely to win. 【0281】 In addition, in the second special performance in which a lottery is conducted by a viewer-produced lottery process, an example has been given in which the virtual item used by the viewer avatar is only one type of Chemilite K, but the present invention is not limited to this, and these virtual items may be, for example, Chemilite K1 which is smaller in size and therefore requires fewer points to purchase, and Chemilite K2 which is larger in size and therefore requires more points to purchase, and the lottery probability may vary depending on the type of item purchased, such that a viewer user who purchases Chemilite K2 has a higher probability of winning than a viewer user who purchases Chemilite K1. 【0282】 In addition, in the second special performance, an example is shown in which winners selected through the viewer performance lottery process are allowed to participate in the second special performance unconditionally, but the present invention is not limited to this, and the event manager M can check at the manager terminal 150 whether these selected viewer users include any ineligible viewer users, and if any ineligible viewer users are included, perform processing such as excluding the ineligible viewer users, and allow winners who pass these checks and do not include ineligible viewer users to participate. 【0283】 In addition, in the second special performance, a form in which the virtual item is a chemical light K has been exemplified, but the virtual items that are the subject of these second special performances may also be a placard PK or a T-shirt TS. In the case where the virtual item that is the subject of the second special performance is a placard PK, instead of the lottery by the viewer performance lottery process described above, the event manager M may be able to check the message that the viewer user who purchased the placard PK entered as the inscription on the placard PK on the manager terminal 150, and from these messages, slanderous messages and messages that are too unrelated to the content of the virtual live performance may be eliminated, and the event manager M may select a favorable message that is suitable for the content of the virtual live performance rather than abusive messages, and allow the viewer user to participate in the second special performance. 【0284】 The selection of the viewers to participate in the second special performance, such as the selection of the above-mentioned message, may be made by the performer user based on the viewpoint image of the virtual camera C2, rather than by the event manager M. 【0285】 Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention also includes modifications and additions that do not deviate from the gist of the present invention. 【0286】 For example, as shown in variant example 1-1, in the case where each viewer user is allowed to select in advance the virtual participation position of the viewer avatar, for example, for a viewer user who selects areas A1 to C6 on the right side facing the virtual stage G in the fourth area, a viewpoint image from the right front position of the virtually flying performer avatar 1 is generated and displayed as the viewpoint image during the flying performance period, for a viewer user who selects areas D4 to H6 on the center facing the virtual stage G in the fourth area, a viewpoint image from the central front position of the virtually flying performer avatar 1 is generated and displayed as the viewpoint image during the flying performance period, and for a viewer user who selects areas I1 to K6 on the left side facing the virtual stage G in the fourth area, a viewpoint image from the left front position of the virtually flying performer avatar 1 is generated and displayed as the viewpoint image during the flying performance period. In this way, depending on the position selected by the viewer user, the viewpoint image during the virtual flight, which is a special action, may be a viewpoint image corresponding to the position (area) selected by each viewer user. 【0287】 In addition, in the above-mentioned embodiments and modifications, the viewer avatar viewpoint video is generated and displayed on the viewer terminal 300 side, but the present invention is not limited to this, and for example, in the case of a live event with few virtual participants, the viewer avatar viewpoint video may also be generated and distributed on the distribution server computer 100 side. Also, the viewer user may be allowed to select whether the viewer avatar viewpoint video is generated on the viewer terminal 300 side or on the distribution server computer 100 side according to the processing capacity of the terminal he / she owns and the available data communication environment, or the distribution server computer 100 may specify the processing capacity of the viewer terminal 300 with which it is connected for communication, and determine whether the viewer avatar viewpoint video is generated on the viewer terminal 300 side or on the distribution server computer 100 side based on the specified processing capacity. 【0288】 In addition, in each of the above embodiments and modified examples, an example is given of the distribution server computer 100 being installed in a studio operated by the event management organization that hosts the virtual live performance, but the present invention is not limited to this, and as the distribution server computer 100, a server computer owned in a data center or the like by the company that rents out the server computer may be used, or as mentioned above, a server computer provided by a cloud service may be used, and the installation form of these server computers may be any form that provides the functions of the distribution server computer 100. 【0289】 In addition, in the above embodiments and modified examples, a performer user sings, dances, and so on, but the present invention is not limited to this, and the performer users may be a group of multiple people, and when a virtual live performance is performed by a group of multiple people, the multiple people may share one performer terminal 200, or a performer terminal 200 may be provided for each member of the group. When the performer users are a group of multiple members, for example, a viewpoint tracking target designation process may be executed by at least one of the distribution server computer 100 and the viewer terminal 300, so that the viewer user can select a member to follow the viewpoint. 【0290】 In addition, while the above embodiments and modified examples illustrate a form in which a performer user sings, dances, and other performance actions are performed by one person, the present invention is not limited to this, and the singer who sings and the actor who performs the dancing actions may be separate persons, in which case the singer's performer terminal and the actor's performer terminal may be separate, and the singer may sing in a location other than the studio where the actor performs the performance actions. 【0291】 In addition, in each of the above embodiments and variant examples, the Internet network is used as an example of the computer communication network connecting the distribution server computer 100, the administrator terminal 150, the performer terminal 200, and the viewer terminal 300, but the present invention is not limited to this, and these communication networks may be composed of local area networks capable of data communication only within a specific area, or may include a local area network and local data communication as part of them. 【0292】 In addition, in each of the above embodiments and variant examples, the viewer terminal 300 is exemplified as a smartphone P or a computer (PC), but the present invention is not limited to this, and these computers may be portable laptops, tablet terminals, e-book readers, wearable computers, game consoles, and various other information processing devices capable of outputting at least 2D video and audio. 【0293】 In addition, in each of the above embodiments and variant examples, a performer user performs in a studio, including singing, but the present invention is not limited to this. For example, a performer user may use a performer terminal 200 installed in a home or the like to appear in a virtual live performance from a home or the like. 【0294】 Furthermore, in each of the above embodiments and variant examples, a virtual live performance has been given as an example of virtual space content, but the present invention is not limited to this, and such virtual space content may be any content that is beneficial to viewer users, such as a fan meeting where performer users gather with their fans, or a talk session, and that is related to a virtual space in which performer avatar 1 and viewer avatars virtually participate. 【0295】 Further, in each of the above embodiments and modified examples, for example, a form is exemplified in which the viewpoint switching of the virtual cameras C1 to C4 and the airborne virtual camera can be performed in advance by settings and operations on the administrator terminal 150, but the present invention is not limited to this, and for example, these viewpoint switching may be performed in real time by the event manager M on the administrator terminal 150 using a viewpoint switching controller or the like constituting the operation input device 161. 【0296】 Furthermore, in each of the above embodiments and modified examples, at least virtual cameras C1 to C4 fixedly positioned (set) in the virtual space are used as virtual cameras, but the present invention is not limited to this. For example, in addition to or instead of the virtual cameras C1 to C4, a movable virtual moving camera may be placed in the virtual live venue, and the position and imaging direction of the virtual moving camera in the virtual space may be controlled by the event manager M, a cameraman, etc. by operating the manager terminal 150 to produce the viewpoint image of the virtual moving camera. 【0297】 In addition, in the above embodiments and modified examples, a form is exemplified in which the viewpoint image of the virtual camera C2 is displayed on the screen S so that the facial expression of the performer user can be detected to be reflected in the facial expression of the performer avatar, but the present invention is not limited to this, and for example, if the performer user has a high-performance head-mounted display with a sensor function to detect the facial expression of the performer user, the performer user may wear such a high-performance head-mounted display to perform the performance, which may improve the performer user's sense of immersion in the virtual live performance. Also, in cases where the facial expression of the performer user does not need to be reflected in detail in the facial expression of the performer avatar, the performer user may wear a normal head-mounted display to perform the performance. 【0298】 Furthermore, in each of the above embodiments and variants, the performer user sings or performs singing actions (performance actions) in real time during the distribution of the virtual live performance, allowing the performer user to proceed with the live performance while checking the reactions of the viewer users who are virtually participating in the virtual live performance; however, the present invention is not limited to this, and the performer user's singing or singing actions (performance actions) do not have to be performed in real time, but may be performed in advance, and the singing audio and singing actions (performance actions) may be recorded in the distribution server computer 100 as performer avatar information, and the recorded singing audio and singing actions (performance actions) may be played back as the live performance progresses, thereby holding a virtual live performance. 【0299】 In addition, instead of the performer user's singing or singing actions (performance), the singing and singing actions (performance actions) of a virtual performer created using computer graphics, etc., can be recorded as performer avatar information on a distribution server computer, and a virtual live performance can be held by playing back the recorded singing voice and singing actions (performance actions) as the live performance progresses. 【0300】 In this way, when singing or singing actions (performance actions) are performed in advance to record and play back performer avatar information on the distribution server computer 100 to distribute a virtual live performance, the configuration of the virtual space content distribution system at the time of distribution will be made up of the distribution server computer 100, an administrator terminal 150, and a viewer terminal 300, and will not include a performer terminal 200, which is a performer user terminal that can be used by a performer user to perform operations to move the performer avatar 1 in the virtual space. [Explanation of symbols] 【0301】 1. Performer Avatar 100 Distribution server computer 150 Administrator terminal 200 Performer terminals 300 Viewer terminals

Claims

[Claim 1] A virtual space content distribution system capable of distributing virtual space content in a virtual space, A terminal capable of displaying video of the virtual space content, and a viewer user terminal that can be used by a viewer user to operate a viewer avatar that can participate in the virtual space targeted by the virtual space content in the virtual space, A server computer connected to the aforementioned viewer user terminal via a network and capable of performing at least the processing related to the virtual space and the processing related to the distribution of the virtual space content, Includes, Based on the fulfillment of predetermined conditions, a virtual camera image is displayed, which is an image of the virtual space as seen from a virtual camera installed in the virtual space, and which includes images of viewer avatars participating in the virtual space at the time the predetermined conditions are fulfilled. A virtual space content distribution system characterized by the following features. [Claim 2] The display manner of the viewer avatar in the virtual camera image is different from the display manner of the viewer avatar in the video of the virtual space content. The virtual space content distribution system according to feature 1. [Claim 3] A virtual space content distribution program for distributing virtual space content in a virtual space via a network using at least a server computer, The avatars that can participate in the virtual space targeted by the virtual space content include viewer avatars that operate in the virtual space through operations on a viewer user terminal that is available to the viewer user and connected to the server computer via the network. The process includes a virtual camera image display step, which, based on the fulfillment of predetermined conditions, displays a virtual camera image that is an image of the virtual space as seen from a virtual camera installed in the virtual space, and which includes images of viewer avatars participating in the virtual space at the time the predetermined conditions are fulfilled. A virtual space content distribution program characterized by the following features. [Claim 4] A virtual space content distribution method for distributing virtual space content in a virtual space via a network using at least a server computer, The avatars that can participate in the virtual space targeted by the virtual space content include viewer avatars that operate in the virtual space through operations on a viewer user terminal that is available to the viewer user and connected to the server computer via the network. The procedure includes a virtual camera image display procedure that, based on the fulfillment of predetermined conditions, displays a virtual camera image which is an image of the virtual space as seen from a virtual camera installed in the virtual space, and which includes images of viewer avatars participating in the virtual space at the time the predetermined conditions are fulfilled. A method for distributing virtual space content characterized by the following features.

Images