WO2022041514A1 - Virtual object display method, apparatus and device, computer program and medium - Google Patents

Abstract

A virtual object display method, apparatus and device, a computer program and a medium. The method is applied to a graphic interface which is loaded with a virtual object and a virtual camera, the virtual camera being used for collecting image presentations of the virtual object. The method comprises: determining the relative position information of the virtual camera and the virtual object (101); determining, based on the relative position information, a motion permission of the virtual camera (102); in response to a touch instruction on the graphic interface, controlling the virtual camera to move in preset three-dimensional space according to the touch instruction and the motion permission so as to adjust the image presentations of the virtual object (103). According to the method, the virtual camera is controlled to move in the preset three-dimensional space according to the touch instruction and the motion permission so as to perform multi-angle presentations of the virtual object in the preset three-dimensional space. A user is provided with a richer variety of viewing angles, and the abnormal presentation of the virtual object under some viewing angles is avoided by setting the three-dimensional space and the motion permission.

Description

Method, apparatus, device, computer program, and medium for displaying virtual objects

cross application

This application refers to Chinese Patent Application No. 202010871773.2, which was filed on August 26, 2020, and entitled "Method, Apparatus, and Device for Displaying Virtual Objects", which is fully incorporated into this application by reference.

technical field

The present invention relates to the field of image technology, and in particular, to a method, apparatus, device, computer program, and medium for displaying virtual objects.

Background technique

The virtual object includes various scene resources in the virtual scene. The virtual objects are, for example, virtual characters and props. Taking the virtual character in the game as an example, the player will select the virtual character and participate in the game by controlling the behavior of the virtual character. Therefore, virtual characters are not only an important carrier for players to participate in the game, but also an important tool for game producers to attract players.

After entering the game, players can view the appearance and character settings of each avatar in the avatar display interface. At present, in the virtual character display interface, the player generally controls the virtual character to perform single-axis rotation by touching the screen, or performs a zoom operation on the virtual character, so as to view the appearance details of the virtual character. However, due to the single viewing angle provided to the player by this viewing method, the details of the appearance of the virtual character that can be displayed are limited, and it is difficult to meet the player's observation needs for the virtual character.

How to display virtual objects in order to improve the observation experience of virtual objects has become a technical problem to be solved urgently.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a method, apparatus, device, computer program, and medium for displaying virtual objects, which are used to display virtual objects from multiple angles in a set three-dimensional space to improve user viewing experience.

In a first aspect, an embodiment of the present invention provides a method for displaying a virtual object. The method is applied to a graphical interface. The graphical interface is loaded with a virtual object and a virtual camera. The virtual camera is used to collect a display image of the virtual object. Methods include:

Determine the relative position information of the virtual camera and the virtual object;

Determine the motion permission of the virtual camera based on the relative position information;

In response to the touch command on the graphical interface, the virtual camera is controlled to move in the set three-dimensional space according to the touch command and the motion authority, so as to adjust the displayed image of the virtual object.

In a second aspect, an embodiment of the present invention provides a device for displaying virtual objects. The device is applied to a graphical interface, where a virtual object and a virtual camera are loaded in the graphical interface, and the virtual camera is used to collect a display image of the virtual object. The device include:

a first determining module for determining relative position information between the virtual camera and the virtual object;

a second determining module, configured to determine the motion authority of the virtual camera based on the relative position information;

The control module is used to control the virtual camera to move in the set three-dimensional space according to the touch command and the motion authority in response to the touch command on the graphical interface, so as to adjust the displayed image of the virtual object.

In a third aspect, an embodiment of the present invention provides an electronic device, which includes a processor and a memory, wherein executable code is stored on the memory, and when the executable code is executed by the processor, the The processor may at least implement the method for displaying virtual objects in the first aspect.

An embodiment of the present invention provides a non-transitory machine-readable storage medium, where executable codes are stored on the non-transitory machine-readable storage medium, and when the executable codes are executed by a processor of an electronic device, the The processor may at least implement the method for displaying virtual objects in the first aspect.

An embodiment of the present invention further provides a system, including a processor and a memory, wherein the memory stores at least one instruction, at least one piece of program, code set or instruction set, the at least one instruction, at least one piece of program, code set or The instruction set is loaded and executed by the processor to implement the above-described method for displaying a virtual object.

Embodiments of the present invention further provide a computer-readable medium on which is stored at least one instruction, at least one piece of program, code set or instruction set, where the at least one instruction, at least one piece of program, code set or instruction set is stored by a processor Loaded and executed to implement the above-described presentation method of a virtual object.

In the technical solution provided by the embodiment of the present invention, the graphic interface is loaded with a virtual object and a virtual camera, and the virtual camera is used to collect a display image of the virtual object in the graphic interface. First, determine the motion permission of the virtual camera based on the relative position information between the virtual camera and the virtual object. The motion permission represents the authorized motion mode of the virtual camera in the set three-dimensional space. For example, if the motion permission of the virtual camera includes the vertical motion permission, The virtual camera can move longitudinally in the set three-dimensional space. In response to the touch command on the graphical interface, the virtual camera is controlled to move in the set three-dimensional space according to the touch command and the motion permission, so that the position of the virtual camera in the set three-dimensional space can be changed through the touch command. to adjust the display image in the GUI. The technical solution controls the virtual camera to move according to the touch command and the motion authority in the set three-dimensional space, so as to display the virtual object from multiple angles in the set three-dimensional space, which not only provides the user with a richer viewing angle, but also By setting the three-dimensional space and motion permissions, the abnormal display of virtual objects in certain perspectives is avoided, and the user experience is improved.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

1 is a flowchart of a method for displaying virtual objects according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a virtual object according to an embodiment of the present invention;

3 to 7 are schematic schematic diagrams of a display process of a virtual object according to an embodiment of the present invention;

8 is a schematic diagram of a graphical interface provided by an embodiment of the present invention;

9 is a schematic diagram of another graphical interface provided by an embodiment of the present invention;

FIG. 10 is a schematic diagram of another virtual object provided by an embodiment of the present invention;

11 is a schematic structural diagram of a device for displaying virtual objects according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of an electronic device corresponding to the virtual object display apparatus provided by the embodiment shown in FIG. 11;

13 is a schematic diagram of a server according to an embodiment of the present invention;

FIG. 14 is a schematic diagram of a storage unit corresponding to the server provided by the embodiment shown in FIG. 13 .

specific embodiment

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a," "the," and "the" as used in the embodiments of the present invention and the appended claims are intended to include the plural forms as well, unless the context clearly dictates otherwise, "a plurality" Generally at least two are included.

Depending on the context, the words "if", "if" as used herein may be interpreted as "at" or "when" or "in response to determining" or "in response to detecting". Similarly, the phrases "if determined" or "if detected (the stated condition or event)" can be interpreted as "when determined" or "in response to determining" or "when detected (the stated condition or event)," depending on the context )" or "in response to detection (a stated condition or event)".

In addition, the sequence of steps in the following method embodiments is only an example, and is not strictly limited.

The display solution of the virtual object provided by the embodiment of the present invention may be executed by an electronic device, and the electronic device may be a terminal device such as a smart phone, a tablet computer, a PC, and a notebook computer. In an optional embodiment, a service program for executing a presentation scheme of a virtual object may be installed on the electronic device. The service program is, for example, a game client, a three-dimensional scene editor, and a game editor.

The display solution for virtual objects provided by the embodiments of the present invention is suitable for display scenarios of various virtual objects. The virtual objects are, for example, virtual characters and props. For example, assuming that the virtual object is a virtual character in the game, the display scene of the virtual character may be the virtual character display interface that the player sees after entering the game. Alternatively, assuming that the virtual object is a game item, the display scene of the virtual character may also be the item display interface called up when the player intends to view the game item during the game.

The execution process of the method for displaying the virtual object will be described below with reference to the following embodiments.

FIG. 1 is a flowchart of a method for displaying virtual objects according to an embodiment of the present invention. As shown in Figure 1, the method includes the following steps:

101. Determine relative position information between the virtual camera and the virtual object;

102. Determine the motion permission of the virtual camera based on the relative position information;

103. In response to the touch command on the graphical interface, control the virtual camera to move in the set three-dimensional space according to the touch command and the motion authority, so as to adjust the displayed image of the virtual object.

The method for displaying virtual objects in the embodiment of the present invention is applied to a graphical interface, such as a virtual character display interface loaded in a service program. The graphical interface is loaded with virtual objects. The virtual object is in three-dimensional space.

In order to display the posture of the virtual object in the three-dimensional space, a virtual camera needs to be loaded in the graphical interface, and the virtual camera is used to collect the display image of the virtual object. In essence, the viewing angle of the virtual camera represents the viewing angle of the user using the graphical interface for the virtual object. Therefore, adjusting the position of the virtual camera in the three-dimensional space is to change the user's viewing angle of the virtual object and adjust the viewing angle of the virtual object. Display image of the object. In order to change the user's viewing angle of the virtual object, it is necessary to adjust the position of the virtual camera in the three-dimensional space. Simply put, it is to control the virtual camera to move in three-dimensional space, so that the virtual camera moves from the initial position to another position. Of course, the virtual camera is also called a virtual camera and a game camera, and the viewing angle of the virtual camera is also called a cropping area of the virtual camera, which is not limited in the embodiment of the present invention.

After the virtual object and the virtual camera are loaded in the graphical interface, in 101 , relative position information of the virtual camera and the virtual object is determined, thereby determining the position of the virtual camera relative to the virtual object.

Further, in 102, the motion authority of the virtual camera is determined based on the relative position information of the virtual camera and the virtual object.

In practical applications, taking the virtual object as the virtual character as an example, if the virtual character can be observed in any direction in the three-dimensional space, it may cause the display of the virtual character to be abnormal, such as the observation angle penetrates into the virtual character's model. Or the viewing angle points to indecent parts of the avatar.

In order to avoid the above abnormal situation, the motion range of the virtual camera is limited to the set three-dimensional space, and permissions are set for the movement of the virtual camera in the set three-dimensional space. The motion permission represents the authorized motion mode of the virtual camera in the set three-dimensional space. The motion permission of the virtual camera includes but is limited to the permission to move in all directions and the permission to zoom. In essence, the permission to move in all directions means that the virtual camera is authorized to move in all directions. Each direction can be preset based on the pose of the virtual object in the three-dimensional space. For example, if the motion permission of the virtual camera includes longitudinal motion permission, the virtual camera can perform longitudinal motion in the longitudinal direction of the set three-dimensional space, such as moving up along the longitudinal axis, or moving down along the longitudinal axis. .

In some possible cases, the distance between the virtual camera and the virtual object is relatively close. In this case, in order to avoid the viewing angle of the virtual camera from penetrating into the model of the virtual object, or other abnormal situations occur. You can limit the motion permission of the virtual camera when the virtual object is close to it. For example, in order to prevent the viewing angle of the virtual camera from penetrating into the interior of the virtual object model, the zooming motion of the virtual camera is prohibited.

Specifically, the relative position information of the virtual camera and the virtual object includes the distance from the virtual camera to the virtual object. In 102, the motion permission of the virtual camera is determined based on the relative position information of the virtual camera and the virtual object, which can be implemented as:

If the distance between the virtual camera and the virtual object is less than the first threshold, it is determined that the movement authority of the virtual camera includes the first direction movement authority and the second direction movement authority, wherein the first direction and the second direction are based on the posture of the virtual object in the three-dimensional space pre-setting.

If the distance between the virtual camera and the virtual object is less than the first threshold, it can be considered that the distance between the virtual camera and the virtual object is relatively short, that is, the virtual camera is located near the virtual object. In this case, the virtual camera may be authorized to perform movement in the first direction and movement in the second direction, that is, it is determined that the movement authority of the virtual camera includes the movement authority in the first direction and the movement authority in the second direction. At the same time, in this case, in order to prevent the viewing angle of the virtual camera from penetrating into the model of the virtual object or other abnormal conditions, the virtual camera is not authorized to perform zooming motion, that is, the virtual camera is not granted the zooming motion permission. Actually, the zooming motion includes a motion for zooming out a virtual object and a motion for zooming in on the virtual object.

For example, it is assumed that the virtual object is the virtual character shown in FIG. 2 . In FIG. 2 , the posture of the avatar in the three-dimensional space is standing on the ground. Based on the posture of the avatar, the first direction is set as the vertical axis direction shown in FIG. 2 , and the second direction is set as the direction shown in FIG. 2 . Horizontal axis direction. If the distance between the virtual camera and the virtual object is less than the first threshold, it is determined that the motion permission of the virtual camera includes the vertical motion permission and the lateral motion permission. The longitudinal motion permission means that the virtual camera is authorized to move up or down along the longitudinal axis. The lateral motion permission means that the virtual camera is authorized to move clockwise around the virtual character along the horizontal axis direction, and the virtual camera is authorized to move counterclockwise around the virtual character along the horizontal axis direction.

Further, after determining the motion permission of the virtual camera in 102, in 103, in response to the touch command on the graphical interface, the virtual camera is controlled to move according to the touch command and the motion permission in the set three-dimensional space. In an optional embodiment, 103 can be implemented as:

If a touch command is detected, the movement track of the touch command is obtained; according to the movement track and motion authority of the touch command, the first motion path of the virtual camera on the first curved surface boundary is determined; the virtual camera is controlled on the first motion path exercise on.

The setting of the three-dimensional space includes a curved surface boundary surrounding the virtual object, and the distance between the curved surface boundary and the virtual object is less than or equal to a first threshold. For distinction, this surface boundary is referred to herein as the first surface boundary. Through the above steps, a close-up observation of the virtual object can be performed on the boundary of the first curved surface.

Specifically, the virtual object includes a plurality of reference points. For distinction, the plurality of reference points are referred to herein as first reference points. The first reference point may be located on the surface of the model of the virtual object, or may be located inside the model of the virtual object. The first curved surface boundary includes a plurality of first circular orbits and a plurality of first curves passing through the plurality of first circular orbits, and each of the first circular orbits respectively uses a corresponding first reference point among the plurality of first reference points as a center. The first surface boundary includes a set closest distance to the virtual object in the three-dimensional space.

In practical applications, the first reference point may be called a viewpoint, and multiple viewpoints may be set according to the visual feature information of the virtual object. Optionally, the radius of each first circular track is set according to visual feature information of the virtual object, such as size information. The radius of each of the first circular orbits may be the same or different. Optionally, the first curved boundary further includes a plurality of curves connected between the plurality of first circular tracks. For the purpose of distinguishing these curves are referred to herein as the first curve. The plurality of first curves can be obtained by performing interpolation operations on the radii of the plurality of first circular trajectories.

In an optional embodiment, determining the first movement path of the virtual camera on the boundary of the first curved surface according to the movement track of the touch command and the movement authority can be implemented as follows:

If the direction of the movement track of the touch command is the first direction, and the motion authority includes the first direction motion authority, the first curve passing through the position of the virtual camera is selected from the plurality of first curves as the first motion path, wherein , the starting point of the first motion path is the position of the virtual camera.

For example, it is assumed that the virtual object is the virtual character shown in FIG. 3 . In FIG. 3 , the posture of the avatar in the three-dimensional space is standing on the ground, and the first direction is set as the vertical axis direction shown in FIG. 3 based on the posture of the avatar. Assume that the graphical interface is the interface in the game client. It is assumed that the motion rights include longitudinal motion rights. It is assumed that the plurality of first curves include L1 and L2 as shown in FIG. 3 . Suppose the virtual camera is located at point d on L1.

Based on the above assumption, if the touch point when the user touches the graphical interface is detected, the movement track of the touch point is acquired. If the direction of the movement track of the touch point is upward or downward along the longitudinal axis, the first curve L1 passing through point d is selected from the plurality of first curves as the first motion path, wherein the first motion path is The starting point is point d.

If the direction of the movement track of the touch point is upward along the longitudinal axis, the virtual camera is controlled to start from point d and move along L1 to the first circular track r1 . Optionally, in this case, the optical axis of the virtual camera points to the center of the first circular track r1, that is, point a.

If the direction of the movement track of the touch point is downward along the longitudinal axis, the virtual camera is controlled to start from point d and move along L1 to the first circular track r2 or r3. Optionally, in this case, when the virtual camera moves to the first circular track r2, the optical axis of the virtual camera points to the center of the first circular track r2, that is, point b; the virtual camera passes through the first circular track r2 to the first circular track r2. When a circular track r3 moves, the optical axis of the virtual camera is switched from point b to the center of the first circular track r3, that is, point c.

In another optional embodiment, determining the first movement path of the virtual camera on the boundary of the first curved surface according to the movement track of the touch command and the movement authority can be implemented as follows:

If the direction of the movement track of the touch command is the second direction, and the motion permission includes the permission to move in the second direction, the first circular track i where the virtual camera is located among the plurality of first circular tracks is used as the first motion path , the second direction is parallel to the plane of the first circular orbit i.

For example, it is assumed that the virtual object is the virtual character shown in FIG. 4 . In FIG. 4 , the posture of the avatar in the three-dimensional space is standing on the ground, and the second direction is set as the horizontal axis direction shown in FIG. 4 based on the posture of the avatar. Assume that the graphical interface is the interface in the game client. It is assumed that the movement rights include lateral movement rights. It is assumed that the position of the virtual camera is point e on the first circular track r2.

Based on the above assumptions, if a touch point when the user touches the graphical interface is detected, the movement track of the touch point is acquired. If the direction of the movement track of the touch point is the horizontal axis direction, the first circular track r2 where the virtual camera is located among the plurality of first circular tracks is used as the first motion path, and the plane where the first circular track r2 is located is used as the first motion path. parallel to the horizontal axis.

If the direction of the movement track of the touch point is to the left along the horizontal axis, the virtual camera is controlled to start from point e and move clockwise along the first circular track r2. Optionally, in this case, the optical axis of the virtual camera points to the center of the first circular track r2, that is, point b. The angle to be rotated by the clockwise movement can be set according to the distance that the touch point moves along the horizontal axis.

If the direction of the movement track of the touch point is to the right along the horizontal axis, the virtual camera is controlled to start from point e and move counterclockwise along the first circular track r2. Optionally, in this case, the optical axis of the virtual camera points to the center of the first circular track r2, that is, point b. The angle to be rotated by the counterclockwise movement can be set according to the distance that the touch point moves along the horizontal axis.

Through the above steps, the virtual object can be observed on the boundary of the first curved surface.

Certainly, the visual feature information of the virtual object is different, and the shape of the first curved surface boundary constructed based on the visual feature information of the virtual object is also different. In practical applications, according to the display effect of the virtual object, the shape of the boundary of the first curved surface can be adjusted by adjusting the position of the first reference point in the three-dimensional space, the parameters of the first circular orbit, and the parameters of the first curve. Adjustment.

In another optional embodiment, in 102, determining the motion permission of the virtual camera based on the relative position information of the virtual camera and the virtual object may be implemented as:

If the distance between the virtual camera and the virtual object is greater than the first threshold, and the distance between the virtual camera and the virtual object is less than the second threshold, it is determined that the motion permission of the virtual camera includes the first direction motion permission, the second direction motion permission and the zooming motion permission .

Wherein, the second threshold is greater than the first threshold. Similar to the above description, the first direction and the second direction may also be preset according to the pose of the virtual object in the three-dimensional space. The direction of the zooming motion is perpendicular to the first direction and the second direction.

If the distance from the virtual camera to the virtual object is greater than the first threshold, and the distance from the virtual camera to the virtual object is less than the second threshold, it can be considered that the distance between the virtual camera and the virtual object is far, that is, the virtual camera is far from the virtual object. In this case, the virtual camera may be authorized to perform movement rights in various directions, such as the first-direction movement rights and the second-direction movement rights. To enable users to observe more details of virtual objects, the virtual camera can also be granted zoom motion permission. In fact, the zooming motion includes a zooming-in motion of the virtual object and a zooming-in motion of the virtual object, and thus, the direction of the zooming motion is usually toward the virtual character or away from the virtual character. In simple terms, towards the virtual character is the direction of the virtual camera towards the virtual object, and away from the virtual character is the direction of the virtual camera away from the virtual object. Correspondingly, the movement of enlarging the virtual object is the movement of the virtual camera in the direction of the virtual object, and the movement of reducing the virtual object is the movement of the virtual camera in the direction away from the virtual object.

For example, it is assumed that the virtual object is the virtual character shown in FIG. 5 . In FIG. 5 , the posture of the avatar in the three-dimensional space is standing on the ground. Based on the posture of the avatar, the first direction is set as the vertical axis direction shown in FIG. 5 , and the second direction is set as the direction shown in FIG. 5 . Horizontal axis direction. If the distance between the virtual camera and the virtual object is greater than the first threshold, it is determined that the motion permission of the virtual camera includes vertical motion permission, lateral motion permission and zoom motion permission. The meanings of the vertical movement permission and the horizontal movement permission are similar to those described above, and will not be repeated here.

The zoom motion permission means that the virtual camera is authorized to move toward the virtual object, and the virtual camera is authorized to move away from the virtual object. For example, it is assumed that the position of the virtual camera is the point f shown in FIG. 6 . In FIG. 6 , the virtual camera moves in the direction of the virtual object: the virtual camera starts from point f and moves toward point b, wherein the moving direction of the virtual camera is shown by the arrow in FIG. 6 .

Further, after determining the motion permission of the virtual camera in 102, in another optional embodiment, in 103, in response to the touch command on the graphical interface, the virtual camera is controlled to perform the motion according to the touch command and the motion permission in the set three-dimensional space. movement, which can be implemented as:

If a touch command is detected, the movement track of the touch command is obtained; according to the movement track of the touch command and the motion authority, the second movement path of the virtual camera is determined, wherein the second movement path is on the boundary of the second curved surface, or The second motion path is in the three-dimensional space area; the virtual camera is controlled to move on the second motion path.

The setting of the three-dimensional space includes a first curved surface boundary and a second curved surface boundary surrounding the virtual object, and a three-dimensional space region between the second curved surface boundary and the first curved surface boundary. Optionally, the first curved surface boundary is set inside the second curved surface boundary. Here, the inner side is the side where the virtual object is located. That is to say, the distance from the first curved boundary to the virtual object is less than or equal to the first threshold, the distance from the second curved boundary to the virtual object is greater than the first threshold, and the distance from the second curved boundary to the virtual object is less than or equal to the second threshold, The second threshold is greater than the first threshold. For ease of understanding, it is assumed that the first curved surface boundary and the second curved surface boundary are respectively two barrel-shaped structures, and the barrel-shaped structure corresponding to the first curved surface boundary is provided inside the barrel-shaped structure corresponding to the second curved surface boundary. Based on this, the two barrel-shaped structures and the three-dimensional space area located in the middle of the two barrel-shaped structures can form a set three-dimensional space. It should be understood that the shape of the set three-dimensional space is determined by the visual feature information of the virtual object. For example, the height of the three-dimensional space can be determined by the height of the virtual object.

Specifically, the virtual object includes a plurality of reference points. For distinction, these reference points are referred to herein as second reference points. Similar to the first reference point, the second reference point may be located on the surface of the model of the virtual object or inside the model of the virtual object. The second curved surface boundary includes a plurality of second circular orbits and a plurality of second curves passing through the plurality of second circular orbits. as a center. The second surface boundary includes setting the furthest distance from the virtual object in the three-dimensional space.

In practical applications, according to the visual feature information of the virtual object, the centers of the first circular orbit and the second circular orbit in the same plane may be the same or different, which is not limited here. That is to say, the multiple first reference points and the multiple second reference points may or may not overlap.

In practical applications, the second reference point may also be referred to as a viewpoint, and the setting rules are similar to the above, and will not be expanded here. The difference between the two viewpoints lies in the surface boundaries targeted by the two viewpoints.

Optionally, the radius of each second circular track is set according to visual feature information of the virtual object, such as size information. The radius of each second circular orbit may be the same or different. Optionally, the second curved surface boundary further includes a plurality of curves connected between the plurality of second circular tracks. To distinguish these curves are referred to herein as second curves. The plurality of second curves may be obtained by interpolating the radii of the plurality of second circular orbits.

Taking the virtual character shown in FIG. 5 as an example, for ease of description, it is still assumed that the virtual character includes three points a, b, and c, and the three points a, b, and c of the virtual character are used as the second reference points. Taking the three points a, b, and c as the center of the circle, and according to the size information of the virtual object, the orbit radii r11, r22, and r33 corresponding to the three points a, b, and c, respectively, are obtained, as shown in Figure 5. The second circular orbit, and the second curves L3, L4. Thus, based on the three second circular orbits and the second curves L3, L4, a second curved surface boundary is established. For ease of viewing, the first curved boundary is not shown in FIG. 5 .

For the convenience of explaining the relationship between the first curved boundary and the second curved boundary, FIG. 6 shows the first circular orbit r2 in the first curved boundary and the second circular orbit r22 in the second curved boundary. In FIG. 6 , it is assumed that the center of the second circular orbit that is on the same plane as the first circular orbit r2 is also point b. In this case, the second curved surface boundary includes a second circular orbit r22, the center of the second circular orbit r22 is point b, and the radius is r22, where r22 is greater than r2.

Based on the second curved surface boundary described above, in an optional embodiment, the second motion path of the virtual camera is determined according to the movement trajectory of the touch command and the motion authority, which can be implemented as:

If the direction of the movement trajectory of the touch command is the first direction, and the motion authority includes the first direction motion authority, the second curve passing through the position of the virtual camera is selected from the plurality of second curves as the second motion path, wherein , and the starting point of the second motion path is the position of the virtual camera.

For example, it is assumed that the virtual object is the virtual character shown in FIG. 5 . In FIG. 5 , the posture of the avatar in the three-dimensional space is standing on the ground, and the first direction is set as the vertical axis direction shown in FIG. 5 based on the posture of the avatar. Assume that the graphical interface is the interface in the game client. It is assumed that the motion rights include longitudinal motion rights. It is assumed that the plurality of second curves include L3 and L4 as shown in FIG. 5 . Suppose the virtual camera is located at point f on L3.

Based on the above assumption, if the touch point when the user touches the graphical interface is detected, the movement track of the touch point is acquired. If the direction of the movement track of the touch point is upward or downward along the longitudinal axis, the second curve L3 passing through point f is selected from the plurality of second curves as the second motion path, wherein the second motion path is The starting point is point f. If the direction of the movement track of the touch point is upward along the vertical axis, the virtual camera is controlled to start from point d and move toward the second circular track r11 along L3. Optionally, in this case, the point of the optical axis of the virtual camera is switched from point b of the center of the second circular track r22 to the center of the second circular track r11 , that is, point a. If the direction of the movement track of the touch point is downward along the longitudinal axis, the virtual camera is controlled to move from point f to the second circular track r33 along L3. In this case, when the virtual camera moves to the second circular track r33, the optical axis of the virtual camera is switched from point b to the center of the second circular track r33, that is, point c.

In another optional embodiment, the second motion path of the virtual camera is determined according to the movement track of the touch command and the motion authority, which may be implemented as follows:

If the direction of the movement track of the touch command is the second direction, and the motion permission includes the permission to move in the second direction, the second circular track i where the virtual camera is located in the plurality of second circular tracks is used as the second motion path , wherein the second direction is parallel to the plane of the second circular orbit i.

For example, it is assumed that the virtual object is the virtual character shown in FIG. 5 . In FIG. 5 , the posture of the avatar in the three-dimensional space is standing on the ground, and the second direction is set as the horizontal axis direction shown in FIG. 5 based on the posture of the avatar. Assume that the graphical interface is the interface in the game client. It is assumed that the movement rights include lateral movement rights. It is assumed that the position of the virtual camera is point f on the second circular track r22.

Based on the above assumptions, if a touch point when the user touches the graphical interface is detected, the movement track of the touch point is acquired. If the direction of the movement track of the touch point is the horizontal axis direction, the second circular track r22 where the virtual camera is located among the plurality of second circular tracks is used as the second motion path, and the plane where the second circular track r22 is located is used as the second motion path. parallel to the horizontal axis. If the direction of the movement track of the touch point is to the left along the horizontal axis, the virtual camera is controlled to start from point f and move clockwise along the second circular track r22. Optionally, in this case, the optical axis of the virtual camera points to the center of the second circular track r22, that is, point b. The angle to be rotated by the clockwise movement can be set according to the distance that the touch point moves along the horizontal axis. Alternatively, if the direction of the movement track of the touch point is to the right along the horizontal axis, the virtual camera is controlled to start from point f and move counterclockwise along the second circular track r22. The angle to be rotated by the counterclockwise movement can be set according to the distance that the touch point moves along the horizontal axis.

It can be understood that, in addition to performing horizontal and vertical motions according to the motion rules shown in the above two embodiments, in practical applications, the virtual camera can also be in the three-dimensional space area between the first curved surface boundary and the second curved surface boundary. Exercise. The motion rules of the virtual camera in the three-dimensional space area are described below with reference to specific embodiments:

In yet another optional embodiment, the second motion path of the virtual camera is determined according to the movement track of the touch command and the motion authority, including:

If the direction of the movement track of the touch command includes multiple directions, and the movement permission includes the zoom movement permission, the second movement path of the virtual camera in the three-dimensional space area is determined based on the location of the virtual camera and the movement directions of the multiple tracks .

Wherein, the movement track of the touch command includes multiple tracks formed by multiple touch points. The direction of the movement track of the touch command includes multiple directions, which essentially means that the directions of the multiple tracks are different.

Of course, the virtual camera can also perform horizontal and vertical motion in the three-dimensional space area, and the specific rules are similar to the horizontal and vertical motion rules described above, which will not be expanded here for the time being.

Still take the avatar shown in FIG. 5 described above as an example, in FIG. 5, the posture of the avatar in the three-dimensional space is standing on the ground, and the first direction is set as shown in FIG. 5 based on the posture of the avatar. In the vertical axis direction, the second direction is the horizontal axis direction shown in FIG. 5 based on the posture of the avatar. Assume that the graphical interface is the interface in the game client. Assume that the motion permission includes the zoom motion permission. It is assumed that the plurality of second curves include L3 and L4 as shown in FIG. 5 . It is assumed that the position of the virtual camera is point f on the second circular track r22.

Based on the above assumptions, if it is detected that at least two touch points are formed when the user touches the graphical interface, the movement trajectories of these touch points are acquired. If the directions of the multiple moving trajectories corresponding to these touch points are different, the second moving path of the virtual camera in the three-dimensional space region is determined based on the position of the virtual camera, that is, point f and the moving directions of the multiple trajectories.

It is assumed that the graphical interface is the interface 700 shown in FIG. 7 . Suppose the touch points include m1 and m2. In FIG. 7 , the direction of the movement trajectory formed by m1 is opposite to the direction of the movement trajectory formed by m2, and according to these movement trajectories, it can be determined that the user's operation is: sliding both hands outward. It is assumed that the virtual object p in FIG. 7 is the virtual character in FIG. 5 . It is assumed that the virtual object p needs to be enlarged when the user slides both hands outward. Of course, in practical applications, the correspondence between user operations and zooming motions may be acquired in advance. For example, sliding inwards of the user's hands corresponds to zooming out of the virtual object, and sliding the user's hands outwards corresponds to zooming in on the virtual object. The zoom factor is set according to the movement track of the touch point.

It is also assumed that a straight line determined based on points f and point b intersects the first circular orbit r2 at point n, as shown in FIG. 6 . Based on the assumptions of FIG. 5 , FIG. 6 and FIG. 7 , the line segment fn determined based on point f and point n is used as the second motion path. That is, the virtual camera is controlled to start from point f and move along the line segment fn in the three-dimensional space area to point b, which is the common center of the second circular orbit r22 and the first circular orbit r2. Through the above steps, the virtual object can be observed on the boundary of the second curved surface and in the three-dimensional space region between the boundary of the first curved surface and the boundary of the second curved surface.

Optionally, the motion parameter when the virtual camera performs the zooming motion may be calculated by adopting the proportional difference value. That is, the virtual camera is used to obtain corresponding points from the boundary of the first curved surface and the boundary of the second curved surface, so as to determine the motion parameters of the virtual camera during zooming motion based on the position of the corresponding point and the display ratio of the corresponding point, such as the zoom ratio and the motion speed. Wait.

It can be understood that each second reference point of the virtual object will also move as the virtual object is zoomed. When the virtual camera moves from the second curved surface boundary to the first curved surface boundary, the distance between the virtual camera and the virtual object gradually decreases. At this time, the size of the virtual object gradually increases, and the distance between the second reference points also gradually increases. Conversely, when the virtual camera moves from the first curved surface boundary to the second curved surface boundary, the distance between the virtual camera and the virtual object gradually increases. At this time, the size of the virtual object gradually decreases, and the distance between the second reference points also gradually decreases. little. Simply put, as the virtual camera moves from the second surface boundary to the first surface boundary, the second reference points are gradually dispersed; as the virtual camera moves from the first surface boundary to the second surface boundary, the second reference points gradually gather. Optionally, when the virtual camera is farthest from the virtual object, the second reference points are gathered into one second reference point.

It should be noted that, in practical applications, when the virtual camera is on the boundary of the second curved surface, the longitudinal distances of the three second reference points a, b, and c are not necessarily as shown in FIG. 5 . Based on the above description of the zooming motion and the plurality of second reference points, when the virtual camera is on the boundary of the second curved surface, the longitudinal distance of each second reference point may vary with the distance between the virtual camera and the virtual object.

Based on the above-mentioned second reference point moving rule, the corresponding relationship between the zoom factor and the plurality of second reference points may also be acquired in advance. Still based on the above assumptions for FIG. 5 , FIG. 6 and FIG. 7 , when the virtual camera moves from point f to point b, in the interface 700 , the virtual object p is gradually enlarged as the virtual camera moves. As the virtual object p is gradually enlarged, the longitudinal distances of the three second reference points a, b, and c gradually increase according to the corresponding relationship between the zoom factor and the plurality of second reference points. On the contrary, when the virtual camera moves from point b to point f, in the interface 700, the virtual object p gradually shrinks as the virtual camera moves. As the virtual object p gradually shrinks, the longitudinal distances of the three second reference points a, b, and c gradually decrease according to the corresponding relationship between the zoom factor and the plurality of second reference points. Actually, the zoom factor is determined by the distance between the virtual camera and the virtual object.

Through the above steps, the virtual object can be observed from multiple angles on the boundary of the second curved surface and in the three-dimensional space region between the boundary of the first curved surface and the boundary of the second curved surface.

Of course, the visual feature information of the virtual object is different, and the shape of the second curved surface boundary constructed based on the visual feature information of the virtual object is also different. In practical applications, according to the display effect of the virtual object, by adjusting the position parameters of the second reference point in the three-dimensional space, the parameters of the second circular orbit, and the parameters of the second curve, the shape of the boundary of the second curved surface can be adjusted. make adjustments.

For example, parameters of each reference point and each circular track can be set in the editor shown in FIG. 8 . In Figure 8, the parameters to be set include the binding mode (Binding Mode), the spline curve curvature (Spline Curvature), the radius and height of each circular track. For example, TopRig, MiddleRig, and BottomRig correspond to the parameter setting options of the upper, middle, and lower circular tracks, respectively.

In practical applications, it can also be set through the parameters of each circular track in the editor shown in FIG. 9 . Among them, the follow option is used to set the parameters corresponding to the reference point, and the Freelook option is used to set the pivot point in the three-dimensional space (that is, the moving point where the virtual camera moves in the three-dimensional space).

In practical applications, the curved surface boundary may also include orbits of other shapes, such as elliptical orbits, which are not limited in this embodiment of the present invention. The curved boundary shown in Figure 10 includes two elliptical orbits and three circular orbits.

In addition to the set three-dimensional space set in the above steps (ie, the first curved surface boundary, the second curved surface boundary, and the three-dimensional space area between the first curved surface boundary and the second curved surface boundary), in order to realize the multi-angle of virtual objects For observation, you can also use the following methods to set the set 3D space where the virtual camera is located and the observation angle:

It is assumed that the display method of virtual objects is applied to a graphical interface, and virtual objects are loaded in the graphical interface. Assume that the virtual object is in three-dimensional space. In order to display the posture of the virtual object in the three-dimensional space, a virtual camera needs to be loaded to collect a display image of the virtual object.

In order to prevent the user from observing the abnormal area of the virtual character, the viewing angle of the virtual camera needs to be limited. Simply put, it is necessary to limit the position and viewing angle of the virtual camera. Similar to the above, the three-dimensional space in which the virtual camera can move is the set three-dimensional space. One of the setting methods for setting the 3D space can be:

First, a first range bucket corresponding to the virtual camera is set, and the first range bucket includes three pivot points.

Specifically, three viewpoints on the virtual object (ie, the first reference points above) are set. For example, when the virtual virtual object is a character, the three viewpoints may be located at the neck, waist, and knee of the virtual character, respectively. For distinction, this viewpoint is called the first viewpoint. The moving points of the virtual camera are set based on the three first viewpoints, that is, the three axis points corresponding to the three first viewpoints. For distinction, this pivot point is called the first pivot point. In order to prevent the user from observing the abnormal area of the virtual character, and also to avoid collision between the virtual camera and the virtual model, optionally, the distance between the first axis point and the corresponding first viewpoint is greater than or equal to a preset distance. Three corresponding circular trajectories (ie, the first circular trajectories above) are calculated by interpolation of these three axis points, so that the range buckets corresponding to the virtual camera are formed by these three circular trajectories. For distinction, this range bucket is called the first range bucket.

Based on the first range bucket, the motion permission of the virtual camera is determined based on the relative position information in 102, which can also be specifically implemented as:

If the distance from the virtual camera to the virtual object is equal to the first threshold, it is determined that the motion permission of the virtual camera includes the first motion permission in the first range bucket. The set three-dimensional space includes a first range bucket surrounding the virtual object, and the distance from the first range bucket to the virtual object is a first threshold.

Furthermore, it is assumed that the virtual object includes a plurality of first viewpoints. It is assumed that the multiple first viewpoints correspond one-to-one with the multiple first axis points in the first range bucket. And it is assumed that the first range bucket is composed of multiple first circular trajectories calculated by interpolation of multiple first axis points. Based on the above assumptions, in 103, in response to the touch command on the graphical interface, the virtual camera is controlled to move in the set three-dimensional space according to the touch command and the motion authority, which can also be specifically implemented as:

If the touch command is detected, the movement track of the touch command is obtained; according to the movement track of the touch command and the first motion authority, the virtual camera is controlled to move in the first range bucket.

Wherein, the optical axis of the virtual camera points from the first axis point where the virtual camera is located to the first viewpoint corresponding to the first axis point. Specifically, in the first range bucket, the virtual camera can move between the first pivot points and the interpolation points corresponding to the first pivot points. Actually, the movement direction of the virtual camera in the first range bucket includes vertical direction, horizontal direction, and any direction superimposed between horizontal and vertical direction. However, no matter what moving direction the virtual camera moves along, the optical axis of the virtual camera always points from the first axis point to the first viewpoint corresponding to the first axis point.

For example, the movement process of the virtual camera in the bucket of the first range is, for example, assuming that the circular trajectory formed by the first axis point is parallel to the ground. It is assumed that the first axis points include x, y, and z, and the corresponding first viewpoints are x', y', and z'. Suppose the virtual camera is at the first axis point x. Based on the above assumptions, when the virtual camera moves laterally, the virtual camera moves around the virtual object along the circular trajectory corresponding to the first axis point x, and the optical axis of the virtual camera always points from the first axis point x to the first axis point x. A first viewpoint x' corresponding to an axis point x. When the virtual camera moves longitudinally, the virtual camera moves longitudinally at the interpolation point between the first axis point x and the first axis point y, and the optical axis of the virtual camera points from the interpolation point to the first axis corresponding to the interpolation point. Viewpoint x' (or first viewpoint y'). The method of switching the orientation of the optical axis during this longitudinal movement is similar to the method of switching the orientation of the optical axis in the above, and will not be expanded here.

Furthermore, a second range bucket corresponding to the virtual camera is set, and the second range bucket includes three axis points.

Specifically, three viewpoints on the virtual object (ie, the second reference point above) are set. For distinction, this viewpoint is called the second viewpoint. It can be understood that the second viewpoint may or may not overlap with the first viewpoint. The moving points of the virtual camera are set based on the three second viewpoints, that is, the three axis points corresponding to the three second viewpoints. For distinction, this pivot point is called the second pivot point. Three corresponding circular trajectories (ie, the second circular trajectories above) are calculated by interpolation of these three axis points, so that the range buckets corresponding to the virtual camera are formed by these three circular trajectories. To distinguish, this range bucket is called the second range bucket.

In practical applications, it should be noted that the distance from the second axis point to the second viewpoint is greater than the distance from the first axis point to the first viewpoint. Therefore, the second range bucket wraps around the outside of the first range bucket, and the first range bucket wraps around the outside of the virtual object.

In the second range bucket, the virtual camera can move between each second axis point and the interpolation point corresponding to each second axis point. It is also possible to move in a three-dimensional space region between the second range bucket and the first range bucket. Actually, the movement direction of the virtual camera in the second range bucket also includes the vertical direction, the horizontal direction, and any direction superimposed between the horizontal and vertical directions. However, no matter what moving direction the virtual camera moves along, the optical axis of the virtual camera always points from the second axis point to the second viewpoint corresponding to the second axis point.

It should be noted that the above viewpoint will move with the movement of the virtual camera between the two range buckets.

Optionally, the smaller the distance from the virtual camera to the virtual object, the larger the plurality of second viewpoints. Specifically, as the virtual camera moves from the second range bucket to the first range bucket, as the relative distance between the virtual camera and the virtual object gradually decreases, it can be observed that the three second viewpoints are gradually separated. If the virtual camera is on the second range bucket, since the relative distance between the virtual camera and the virtual object is the farthest, it can be observed that the distances between the second viewpoints corresponding to the three second axis points are relatively close, for example, three second viewpoints can be observed. aggregate into one point. This is because: when the virtual camera is on the second range bucket, no matter which second axis point the virtual camera moves to, the optical axis of the virtual camera always points to the corresponding second viewpoint on the virtual object. The size of the virtual object is small, therefore, it will be observed that the distance between the second viewpoints corresponding to the three second axis points in the virtual object is relatively close, or even aggregated into one point; as the relative distance between the virtual camera and the virtual object becomes smaller , the size of the observed virtual object increases. To ensure that the entire virtual object can be observed, the second viewpoints corresponding to the three second axis points in the virtual object need to be gradually dispersed.

Based on the second range bucket, the motion permission of the virtual camera is determined based on the relative position information in 102, which can also be specifically implemented as:

If the distance from the virtual camera to the virtual object is greater than the first threshold, and the distance from the virtual camera to the virtual object is less than the second threshold, it is determined that the motion permission of the virtual camera includes the second motion permission in the second range bucket and the second motion permission in the second range bucket. The third movement permission between the second range bucket and the first range bucket. The second threshold is greater than the first threshold, and the three-dimensional space is set to include a second range bucket and a first range bucket surrounding the virtual object, the distance from the second range bucket to the virtual object is the second threshold, and the first range bucket to the virtual object The distance of the object is the first threshold.

Furthermore, it is assumed that the virtual object includes a plurality of second viewpoints. It is assumed that the plurality of second viewpoints correspond one-to-one with the plurality of second axis points in the second range bucket. And it is assumed that the second range bucket is composed of multiple second circular trajectories calculated by interpolation of multiple second axis points. Based on the above assumptions, in 103, in response to the touch command to the graphical interface, the virtual camera is controlled to move according to the touch command and the motion authority in the set three-dimensional space, which can also be implemented as:

When the touch command is detected, the movement track of the touch command is obtained; according to the movement track of the touch command and the second motion permission, the virtual camera is controlled to move in the second range bucket; or the movement track of the touch command and the second movement authority are controlled; Three motion permissions, controlling the virtual camera to move between the second range bucket and the first range bucket. Wherein, the optical axis of the virtual camera points from the second axis point where the virtual camera is located to the second viewpoint corresponding to the second axis point.

In this way, two range buckets can be set through six viewpoints and six corresponding pivot points. Therefore, through the movement of the virtual camera on the two range buckets and between the two range buckets, the multi-angle observation of the virtual object is realized. And through the space between the two range buckets and the position of the pivot point, the specified parts of the virtual object from the viewpoint are limited, such as the inner part of the virtual object's skirt and so on.

During the execution of the method for displaying virtual objects shown in FIG. 1 , by controlling the virtual camera to move according to the touch command and the motion authority in the set three-dimensional space, multiple virtual objects can be displayed in the set three-dimensional space. The angle display not only provides users with a richer viewing angle, but also avoids abnormal display of virtual objects from certain perspectives by setting three-dimensional space and motion permissions, improving user experience.

The apparatus for displaying virtual objects according to one or more embodiments of the present invention will be described in detail below. Those skilled in the art can understand that these virtual object display devices can be configured by using commercially available hardware components through the steps taught in this solution.

FIG. 6 is a schematic structural diagram of an apparatus for displaying virtual objects according to an embodiment of the present invention. The device is applied to a graphical interface, the graphical interface is loaded with a virtual object and a virtual camera, and the virtual camera is used to collect a display image of the virtual object. As shown in FIG. 11 , the display device of the virtual object includes: a first determination Module 11 , a second determination module 12 , and a control module 13 .

a first determining module 11, configured to determine relative position information of the virtual camera and the virtual object;

a second determination module 12, configured to determine the motion authority of the virtual camera based on the relative position information;

The control module 13 is configured to, in response to a touch command on the graphical interface, control the virtual camera to move in a set three-dimensional space according to the touch command and the motion authority, so as to adjust the display image.

Optionally, the relative position information includes a distance from the virtual camera to the virtual object.

When determining the motion permission of the virtual camera based on the relative position information, the second determining module 12 is specifically configured to: if the distance from the virtual camera to the virtual object is less than a first threshold, determine the virtual camera. The motion authority of the camera includes a first direction motion authority and a second direction motion authority, wherein the first direction and the second direction are preset according to the posture of the virtual object in the three-dimensional space.

Optionally, the setting of the three-dimensional space includes a first curved surface boundary surrounding the virtual object, and a distance from the first curved surface boundary to the virtual object is less than or equal to the first threshold.

The control module 13 is specifically configured to: if the touch command is detected, obtain the movement track of the touch command; and determine whether the virtual camera is in operation according to the movement track of the touch command and the motion permission. a first motion path on the boundary of the first curved surface; controlling the virtual camera to move on the first motion path.

Optionally, the virtual object includes a plurality of first reference points, the first curved surface boundary includes a plurality of first circular orbits and a plurality of first curves passing through the plurality of first circular orbits, each A circular track is respectively centered on the corresponding first reference points among the plurality of first reference points.

Optionally, when the control module 13 determines the first movement path of the virtual camera on the first curved surface boundary according to the movement trajectory of the touch control instruction and the movement authority, the control module 13 is specifically configured to: if The direction of the movement track of the touch command is the first direction, and the movement authority includes the movement authority in the first direction, then a first curve passing through the position of the virtual camera is selected from the plurality of first curves As the first motion path, the starting point of the first motion path is the position where the virtual camera is located.

Optionally, when the control module 13 determines the first movement path of the virtual camera on the boundary of the first curved surface according to the movement trajectory of the touch control instruction and the movement authority, specifically: : If the direction of the movement track of the touch command is the second direction, and the motion permission includes the permission to move in the second direction, the first circular track where the virtual camera is located is used as the first The circular orbit i is used as the first movement path, and the second direction is parallel to the plane where the first circular orbit i is located.

Optionally, the relative position information includes a distance from the virtual camera to the virtual object.

When the second determination module 12 determines the motion permission of the virtual camera based on the relative position information, it is specifically configured to: if the distance from the virtual camera to the virtual object is greater than a first threshold, and the virtual camera If the distance to the virtual object is less than the second threshold, it is determined that the motion authority of the virtual camera includes the first direction motion authority, the second direction motion authority and the zoom motion authority.

The second threshold is greater than the first threshold, the first direction and the second direction are preset according to the posture of the virtual object in the three-dimensional space, and the direction of the zooming movement is perpendicular to the first direction and the second direction.

Optionally, the set three-dimensional space includes a first curved surface boundary and a second curved surface boundary surrounding the virtual object, and a three-dimensional space region between the second curved surface boundary and the first curved surface boundary. The distance from the first curved boundary to the virtual object is less than or equal to the first threshold, the distance from the second curved boundary to the virtual object is greater than the first threshold, and the distance from the second curved boundary to the The distance of the virtual object is less than or equal to the second threshold, and the second threshold is greater than the first threshold.

When the control module 13 controls the virtual camera to move according to the touch command and the motion permission in the set three-dimensional space in response to the touch command on the graphical interface, the control module 13 is specifically configured to: if detecting to the touch command, obtain the movement track of the touch command; determine the second movement path of the virtual camera according to the movement track of the touch command and the movement authority, wherein the second movement path is The motion path is on the boundary of the second curved surface, or the second motion path is in the three-dimensional space area; the virtual camera is controlled to move on the second motion path.

Optionally, the virtual object includes a plurality of second reference points, the second curved surface boundary includes a plurality of second circular orbits and a plurality of second curves passing through the plurality of second circular orbits, each of which The two circular orbits are respectively centered on the corresponding second reference points among the plurality of second reference points.

Optionally, when determining the second movement path of the virtual camera according to the movement trajectory of the touch control instruction and the motion authority, the control module 13 is specifically configured to: if the movement trajectory of the touch control instruction The direction of the first direction is the first direction, and the movement authority includes the first direction movement authority, then select the second curve passing through the position of the virtual camera from the plurality of second curves as the second movement path, Wherein, the starting point of the second motion path is the position where the virtual camera is located.

Optionally, when determining the second movement path of the virtual camera according to the movement trajectory of the touch control instruction and the motion authority, the control module 13 is specifically configured to: if the movement trajectory of the touch control instruction The direction is the second direction, and the movement permission includes the second direction movement permission, then the second circular track i where the virtual camera is located in the plurality of second circular tracks is used as the second movement path, wherein the second direction is parallel to the plane of the second circular track i.

Optionally, when determining the second movement path of the virtual camera according to the movement trajectory of the touch control instruction and the motion authority, the control module 13 is specifically configured to: if the movement trajectory of the touch control instruction The direction of the virtual camera includes multiple directions, and the motion permission includes the zoom motion permission, then based on the position of the virtual camera and the moving directions of the multiple tracks, determine all the positions of the virtual camera in the three-dimensional space area. Describe the second motion path.

Optionally, the relative position information includes the distance from the virtual camera to the virtual object. The second determining module 12 is specifically configured to: if the distance from the virtual camera to the virtual object is equal to the first threshold, determine that the motion permission of the virtual camera includes the first motion permission in the first range bucket; For the first range bucket of the virtual object, the distance from the first range bucket to the virtual object is the first threshold.

Optionally, the virtual object includes a plurality of first viewpoints, and the plurality of first viewpoints are in one-to-one correspondence with the plurality of first axis points in the first range bucket, and the first range bucket is obtained by interpolation of the plurality of first axis points. is composed of a plurality of first circular trajectories. When the control module 13 controls the virtual camera to move according to the touch command and the motion authority in the set three-dimensional space in response to the touch command on the graphical interface, the control module 13 is specifically configured to: if the touch command is detected, obtain the touch command according to the movement trajectory of the touch command and the first motion permission, control the virtual camera to move in the first range bucket. Wherein, the optical axis of the virtual camera points from the first axis point where the virtual camera is located to the first viewpoint corresponding to the first axis point.

Optionally, the relative position information includes the distance from the virtual camera to the virtual object. The second determining module 12 is specifically configured to: if the distance from the virtual camera to the virtual object is greater than the first threshold, and the distance from the virtual camera to the virtual object is less than the second threshold, then determine that the motion permission of the virtual camera is included in the second range bucket and a third movement authority between the second range bucket and the first range bucket. The second threshold is greater than the first threshold, and the three-dimensional space is set to include a second range bucket and a first range bucket surrounding the virtual object, the distance from the second range bucket to the virtual object is the second threshold, and the first range bucket to the virtual object The distance of the object is the first threshold.

Optionally, the virtual object includes multiple second viewpoints, and the multiple second viewpoints correspond one-to-one with multiple second pivot points in the second range bucket, and the second range bucket is calculated by interpolation of multiple second pivot points. of multiple second circular trajectories. When the control module 13 controls the virtual camera to move according to the touch command and the motion authority in the set three-dimensional space in response to the touch command on the graphical interface, the control module 13 is specifically used for: detecting the touch command, and obtaining the touch command's information. Movement track; control the virtual camera to move in the second range bucket according to the movement track of the touch command and the second movement permission; or control the virtual camera to move in the second range bucket according to the movement track of the touch command and the third movement permission Motion to and from the first range bucket.

Wherein, the optical axis of the virtual camera points from the second axis point where the virtual camera is located to the second viewpoint corresponding to the second axis point.

Optionally, the smaller the distance between the virtual camera and the virtual object, the larger the multiple second viewpoints; and if the virtual camera is in the second range bucket, the multiple second viewpoints are aggregated into one point.

The apparatus for displaying virtual objects shown in FIG. 11 may execute the methods provided in the foregoing embodiments. For the parts not described in detail in this embodiment, reference may be made to the relevant descriptions of the foregoing embodiments, which will not be repeated here.

In a possible design, the structure of the virtual object display apparatus shown in FIG. 11 can be implemented as an electronic device.

As shown in FIG. 12 , the electronic device may include: a processor 21 and a memory 22 . The memory 22 stores executable codes, and when the executable codes are executed by the processor 21, at least the processor 21 can implement the method for displaying virtual objects provided in the foregoing embodiments. The structure of the electronic device may further include a communication interface 23 for communicating with other devices or a communication network.

In addition, an embodiment of the present invention provides a non-transitory machine-readable storage medium, where executable codes are stored on the non-transitory machine-readable storage medium, and when the executable codes are executed by a processor of a wireless router , causing the processor to execute the method for displaying virtual objects provided in the foregoing embodiments.

As required, the systems, methods and apparatuses of the embodiments of the present invention can be implemented as pure software (for example, a software program written in Java), or can be implemented as pure hardware (for example, a dedicated ASIC chip or FPGA chip) as required, It may also be implemented as a system combining software and hardware (eg, a firmware system with fixed code stored or a system with a general-purpose memory and processor).

Another aspect of the present invention is a computer-readable medium having computer-readable instructions stored thereon that, when executed, perform the methods of various embodiments of the present invention.

Various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in the virtual object display device according to the embodiment of the present invention. The present invention can also be implemented as apparatus or apparatus programs (eg, computer programs and computer program products) for performing part or all of the methods described herein. Such a program implementing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such signals may be downloaded from Internet sites, or provided on carrier signals, or in any other form.

For example, FIG. 13 shows a server, such as an application server, that can implement the virtual object presentation method according to the present invention. The server traditionally includes a processor 1310 and a computer program product or computer readable medium in the form of memory 1320 . The memory 1320 may be electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM. The memory 1320 has storage space 1330 for program code 1331 for performing any of the method steps in the above-described methods. For example, the storage space 1330 for program codes may include various program codes 1331 for implementing various steps in the above methods, respectively. These program codes can be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks. Such computer program products are typically portable or fixed storage units as described with reference to FIG. 14 . The storage unit may have storage segments, storage spaces, etc. arranged similarly to the storage 1320 in the server of FIG. 13 . The program code may, for example, be compressed in a suitable form. Typically, the storage unit includes computer readable code 1331', i.e. code readable by a processor such as 1310 for example, which when executed by a server, causes the server to perform the various steps in the methods described above.

Reference herein to "one embodiment," "an embodiment," or "one or more embodiments" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention. Also, please note that instances of the phrase "in one embodiment" herein are not necessarily all referring to the same embodiment.

In the description provided herein, numerous specific details are set forth. It will be understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

It should be noted that the above-described embodiments illustrate rather than limit the invention, and that alternative embodiments may be devised by those skilled in the art without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

Furthermore, it should also be noted that the language used in this specification has been principally selected for readability and teaching purposes, rather than to explain or define the subject matter of the invention. Accordingly, many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. This disclosure is intended to be illustrative, not restrictive, as to the scope of the present invention, which is defined by the appended claims.

Claims (17)

1. A method for displaying virtual objects, characterized in that the method is applied to a graphical interface, wherein a virtual object and a virtual camera are loaded in the graphical interface, and the virtual camera is used to collect a display image of the virtual object, and the The methods described include:

   determining the relative position information of the virtual camera and the virtual object;

   determining the motion permission of the virtual camera based on the relative position information;

   In response to the touch command on the graphical interface, the virtual camera is controlled to move in the set three-dimensional space according to the touch command and the motion permission, so as to adjust the display image.
2. The method according to claim 1, wherein the relative position information comprises a distance from the virtual camera to the virtual object;

   The determining the motion permission of the virtual camera based on the relative position information includes:

   If the distance between the virtual camera and the virtual object is less than the first threshold, it is determined that the movement authority of the virtual camera includes a first direction movement authority and a second direction movement authority, wherein the first direction and the second direction are based on the The pose of the virtual object in the three-dimensional space is preset.
3. The method according to claim 2, wherein the setting of the three-dimensional space comprises a first surface boundary surrounding the virtual object, and the distance from the first surface boundary to the virtual object is less than or equal to the first threshold;

   The controlling the virtual camera to move in the set three-dimensional space in response to the touch command on the graphical interface according to the touch command and the motion permission includes:

   If the touch command is detected, acquiring the movement track of the touch command;

   determining a first movement path of the virtual camera on the boundary of the first curved surface according to the movement trajectory of the touch control instruction and the movement authority;

   The virtual camera is controlled to move on the first movement path.
4. The method of claim 3, wherein the virtual object comprises a plurality of first reference points, the first curved boundary comprises a plurality of first circular orbits and passes through the plurality of first circular orbits A plurality of first curves of , each of the first circular orbits is respectively centered on the corresponding first reference point among the plurality of first reference points.
5. The method according to claim 1, wherein the relative position information comprises a distance from the virtual camera to the virtual object;

   The determining the motion permission of the virtual camera based on the relative position information includes:

   If the distance from the virtual camera to the virtual object is greater than a first threshold, and the distance from the virtual camera to the virtual object is less than a second threshold, it is determined that the motion permission of the virtual camera includes a first direction motion permission , the second direction movement permission and the zoom movement permission;

   The second threshold is greater than the first threshold, the first direction and the second direction are preset according to the posture of the virtual object in the three-dimensional space, and the direction of the zooming movement is perpendicular to the first direction and the second direction.
6. The method according to claim 5, wherein the setting of the three-dimensional space comprises a first curved surface boundary and a second curved surface boundary surrounding the virtual object, and being located between the second curved surface boundary and the first curved surface boundary 3D space area between surface boundaries;

   The distance from the first curved boundary to the virtual object is less than or equal to the first threshold, the distance from the second curved boundary to the virtual object is greater than the first threshold, and the distance from the second curved boundary to the the distance of the virtual object is less than or equal to the second threshold, and the second threshold is greater than the first threshold;

   The controlling the virtual camera to move in the set three-dimensional space in response to the touch command on the graphical interface according to the touch command and the motion permission includes:

   If the touch command is detected, acquiring the movement track of the touch command;

   A second motion path of the virtual camera is determined according to the movement trajectory of the touch command and the motion authority, wherein the second motion path is on the boundary of the second curved surface, or the second motion path in the three-dimensional space region;

   The virtual camera is controlled to move on the second movement path.
7. 6. The method of claim 6, wherein the virtual object includes a plurality of second reference points, the second surface boundary includes a plurality of second circular orbits and passes through the plurality of second circular orbits A plurality of second curves of , each of the second circular orbits is respectively centered on the corresponding second reference point among the plurality of second reference points.
8. The method according to claim 1, wherein the relative position information comprises a distance from the virtual camera to the virtual object;

   The determining the motion permission of the virtual camera based on the relative position information includes:

   If the distance from the virtual camera to the virtual object is equal to the first threshold, determining that the motion permission of the virtual camera includes the first motion permission in the first range bucket;

   The set three-dimensional space includes a first range bucket surrounding the virtual object, and the distance from the first range bucket to the virtual object is the first threshold.
9. The method according to claim 8, wherein the virtual object comprises a plurality of first viewpoints, and the plurality of first viewpoints are in one-to-one correspondence with a plurality of first axis points in the first range bucket, The first range bucket is composed of a plurality of first circular trajectories obtained by interpolation of the plurality of first axis points;

   The controlling the virtual camera to move in the set three-dimensional space in response to the touch command on the graphical interface according to the touch command and the motion permission includes:

   If the touch command is detected, acquiring the movement track of the touch command;

   Controlling the virtual camera to move in the first range bucket according to the movement trajectory of the touch command and the first motion permission;

   Wherein, the optical axis of the virtual camera points to the first viewpoint corresponding to the first axis point from the first axis point where the virtual camera is located.
10. The method according to claim 1, wherein the relative position information comprises a distance from the virtual camera to the virtual object;

    The determining the motion permission of the virtual camera based on the relative position information includes:

    If the distance from the virtual camera to the virtual object is greater than the first threshold, and the distance from the virtual camera to the virtual object is less than the second threshold, it is determined that the motion permission of the virtual camera is included in the second range bucket a second motion permission in the , and a third motion permission between the second range bucket and the first range bucket;

    Wherein, the second threshold value is greater than the first threshold value, and the set three-dimensional space includes the second range bucket and the first range bucket surrounding the virtual object, the second range bucket to the The distance from the virtual object is the second threshold, and the distance from the first range bucket to the virtual object is the first threshold.
11. The method according to claim 10, wherein the virtual object comprises a plurality of second viewpoints, and the plurality of second viewpoints are in one-to-one correspondence with a plurality of second axis points in the second range bucket, The second range bucket is composed of a plurality of second circular trajectories obtained by interpolation of the plurality of second axis points;

    The controlling the virtual camera to move in the set three-dimensional space in response to the touch command on the graphical interface according to the touch command and the motion permission includes:

    If the touch command is detected, acquiring the movement track of the touch command;

    control the virtual camera to move in the second range bucket according to the movement trajectory of the touch command and the second motion permission; or

    controlling the virtual camera to move between the second range bucket and the first range bucket according to the movement trajectory of the touch control instruction and the third motion permission;

    Wherein, the optical axis of the virtual camera is directed from the second axis point where the virtual camera is located to the second viewpoint corresponding to the second axis point.
12. The method of claim 11, wherein the smaller the distance from the virtual camera to the virtual object, the larger the plurality of second viewpoints; and

    If the virtual camera is in the second range bucket, the plurality of second viewpoints are aggregated into one point.
13. A device for displaying virtual objects, characterized in that the device is applied to a graphical interface, and the graphical interface is loaded with a virtual object and a virtual camera, and the virtual camera is used to collect a display image of the virtual object, and the The device includes:

    a first determining module, configured to determine relative position information of the virtual camera and the virtual object;

    a second determining module, configured to determine the motion permission of the virtual camera based on the relative position information;

    The control module is configured to control the virtual camera to move in the set three-dimensional space according to the touch command and the motion authority in response to the touch command on the graphical interface, so as to adjust the display image.
14. An electronic device, characterized in that it includes: a memory and a processor; wherein, executable codes are stored on the memory, and when the executable codes are executed by the processor, the processor is caused to execute as claimed in the right The virtual object display method described in any one of claims 1 to 12.
15. A computer-readable medium, characterized in that it stores at least one instruction, at least one piece of program, code set or instruction set, and the at least one instruction, at least one piece of program, code set or instruction set is loaded and executed by a processor to implement The virtual object display method according to any one of claims 1 to 12.
16. A computer program comprising computer readable code which, when run on a server, causes the server to perform the virtual object presentation method according to any one of claims 1-12.
17. A computer-readable medium in which the computer program of claim 16 is stored.

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