CN115814398A - Method and device for moving waistband following player in virtual reality and computer equipment - Google Patents

Abstract

The invention relates to a method, a device, computer equipment and a storage medium for moving a waistband following a player in virtual reality, wherein the method comprises the following steps: obtaining an interpolation value according to a forward vector of the current rotation of the head of the player and a horizontal plane normal vector, and obtaining a product of the interpolation value and the maximum distance of backward movement of the waistband to obtain a first distance of backward movement of the waistband; obtaining a unit vector of a projection vector of the current player head orientation on a horizontal plane, and multiplying the unit vector by a first distance to obtain a displacement vector; subtracting the displacement vector from the current position coordinate of the head of the player to obtain a second distance coordinate of the waistband; subtracting the current first position coordinate of the waistband from the second distance coordinate to obtain a distance difference, and obtaining the current speed of the waistband according to the displacement moving speed coefficient and the distance difference of the waistband; and acquiring a product result of the current speed and the previous frame time, and accumulating the displacement coordinate of the current frame and the product result to obtain the updated position of the waistband. The method can meet the experience effect of game setting in virtual reality.

Description

Belt-following player's movement method, device and computer equipment in virtual reality

technical field

The present invention relates to the technical field of virtual reality games, in particular to a belt-following player movement method, device, computer equipment and storage medium in virtual reality.

Background technique

Generally, in virtual reality games, only the player's head and hands are captured. At this time, the belt should be displayed, and it usually follows the movement and rotation of the player's head directly, but the effect is not very good. Because when the player uses the belt, such as holding the belt tool, taking the gun on the belt, etc., they all bow their heads. When bowing the head, the center of the player's head will lean forward a certain distance from the body, so the position of the belt will lean forward when bowing the head, which does not meet the effect of the game settings in virtual reality, and the way the belt follows the player in virtual reality does not meet the game settings need.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method, device, computer equipment and storage medium for the belt to follow the player in virtual reality. When the player looks down at the belt during the player's movement, the belt will be on the player's head. Near the waist a little behind the head instead of vertically below the player's head, it satisfies the effect of game settings in virtual reality and improves the experience of virtual games.

In order to solve at least one of the above technical problems, an embodiment of the present invention provides a method for moving a belt following a player in virtual reality, the method comprising:

Obtain the forward vector of the current rotation of the player's head, obtain the interpolation value of the current player's head down according to the current vector and the normal vector of the horizontal plane, obtain the maximum distance that the belt moves backward, and combine the interpolation value with the The maximum distance is multiplied to obtain the first distance that the belt needs to move back;

Obtain the projection vector of the current player's head orientation on the horizontal plane, convert the projection vector into a unit vector, multiply the unit vector by the first distance to obtain the displacement vector of the first distance, and obtain the player's head the coordinates of the current position of the head, and subtract the displacement vector from the coordinates of the current position to obtain the coordinates of the second distance to which the belt is about to move;

Obtain the current first position coordinates of the belt, subtract the first position coordinates from the coordinates of the second distance to obtain a distance difference, obtain the belt displacement movement speed coefficient, and obtain the belt displacement movement speed coefficient according to the distance between the belt displacement movement speed coefficient and the distance difference to get the current speed of the belt;

Obtaining the time of the previous frame, multiplying the current speed by the time of the previous frame to obtain a third distance, obtaining the displacement coordinates of the current frame of the belt, and multiplying the displacement coordinates of the current frame by the first The three distances are accumulated to obtain the updated position of the current belt, and the belt moves based on the updated position.

In one of the embodiments, the interpolation of the current player bowing his head is obtained according to the current vector and the normal vector of the horizontal plane, including:

Performing a dot product of the current vector and the normal vector of the horizontal plane, and obtaining an included angle according to the dot product;

The degree of the included angle is subtracted from 90 degrees to obtain a difference, and the difference is divided by 90 degrees to obtain an interpolation value of the current player bowing his head.

In one embodiment, the method also includes:

When the degree of the included angle is greater than 90 degrees, the degree of the included angle is set to 90 degrees.

In one of the embodiments, the obtaining the current speed of the belt according to the belt displacement movement speed coefficient and the distance difference includes:

Calculate the square value of the distance difference, multiply the square value by the belt displacement movement speed coefficient to obtain the speed of the belt in the current frame, and obtain the current speed of the belt according to the speed of the belt in the current frame .

In one of the embodiments, the obtaining the current speed of the belt according to the speed of the belt in the current frame includes:

Get the minimum speed of the belt;

The minimum speed is compared with the speed of the belt in the current frame, and the maximum speed of the minimum speed and the speed of the belt in the current frame is taken as the current speed of the belt.

In one embodiment, the method also includes:

Obtain the first rotation of the belt and the second rotation of the player, and obtain the angle difference between the first rotation and the second rotation;

Obtaining the rotation coefficient of the belt displacement movement, multiplying the angle difference by the rotation coefficient of the belt displacement movement to obtain the rotation speed of the belt;

Multiplying the time of the previous frame by the rotation speed of the belt to obtain the rotation value of the belt through the time of the previous frame;

The current rotation of the belt is obtained, and the current rotation is added to the rotation value of the belt to obtain an updated rotation of the belt, and the belt rotates during movement according to the updated rotation.

In one of the embodiments, the product of the angle difference and the belt displacement rotation coefficient to obtain the rotation speed of the belt includes:

multiplying the product of the angle difference and the belt displacement rotation coefficient to obtain a product value;

Obtain the minimum rotation speed of the belt;

Obtain the maximum value of the product value and the minimum rotation speed of the belt, and use the maximum value as the rotation speed of the belt.

A mobile device in which a belt follows a player in virtual reality, the device comprising:

The first obtaining module is used to obtain the forward vector of the current rotation of the player's head, obtain the interpolation of the current player's head bowing according to the current vector and the normal vector of the horizontal plane, and obtain the maximum distance for the belt to move backward, performing a product operation on the interpolation value and the maximum distance to obtain the first distance that the waistband needs to move backward;

The second acquisition module is used to acquire the projection vector of the current player's head orientation on the horizontal plane, convert the projection vector into a unit vector, multiply the unit vector by the first distance, and obtain the displacement vector of the first distance , obtaining the coordinates of the current position of the player's head, and subtracting the displacement vector from the coordinates of the current position to obtain the coordinates of the second distance to which the belt is about to move;

The third acquiring module is used to acquire the current first position coordinates of the belt, subtract the first position coordinates from the coordinates of the second distance to obtain a distance difference, acquire the belt displacement movement speed coefficient, and obtain the belt displacement according to the belt displacement The current speed of the belt is obtained by moving the speed coefficient and the distance difference;

The fourth obtaining module is used to obtain the time of the last frame, multiply the current speed by the time of the last frame to obtain a third distance, obtain the displacement coordinates of the current frame of the belt, and convert the current frame to The displacement coordinates of and the third distance are accumulated to obtain the updated position of the current belt, and the belt moves based on the updated position.

In addition, an embodiment of the present invention also provides a computer device, which includes: a memory, a processor, and an application program stored on the memory and operable on the processor. When the processor executes the application program, the method in any of the above embodiments is implemented. A step of.

In addition, an embodiment of the present invention also provides a computer-readable storage medium, on which an application program is stored, and when the application program is executed by a processor, the steps of the method in any of the foregoing embodiments are implemented.

In the embodiment of the present invention, by implementing the above method, the forward vector of the current rotation of the player's head is obtained, and the interpolation of the current player's bowing is obtained according to the current vector and the normal vector of the horizontal plane, and the maximum distance for the belt to move backward is obtained. Interpolation is multiplied by the maximum distance to obtain the first distance that the belt needs to move backward; obtain the current player's head orientation projection vector on the horizontal plane, convert the projection vector into a unit vector, and multiply the unit vector by the first distance to obtain the first The displacement vector of the distance, obtain the coordinates of the current position of the player's head, subtract the displacement vector from the coordinates of the current position, and obtain the coordinates of the second distance that the belt is about to move to; obtain the coordinates of the current first position of the belt, and set the second Subtract the first position coordinate from the distance coordinate to obtain the distance difference, obtain the belt displacement movement speed coefficient, and obtain the current speed of the belt according to the belt displacement movement speed coefficient and the distance difference; obtain the time of the previous frame, and compare the current speed with the time of the previous frame Multiply to obtain the third distance, obtain the displacement coordinates of the current frame of the belt, and accumulate the displacement coordinates of the current frame and the third distance to obtain the updated position of the current belt, and the belt moves based on the updated position. Therefore, when the player looks down at the belt during the player's movement, the belt will be near the waist a little behind the player's head instead of vertically below the player's head, which satisfies the effect of game settings in virtual reality and improves the experience of virtual games.

Description of drawings

FIG. 1 is a schematic flowchart of a method for moving a belt following a player in a virtual reality embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a belt-following player's mobile device in a virtual reality embodiment of the present invention;

Fig. 3 is a schematic diagram of the structural composition of a computer device in an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

An embodiment of the present invention provides a method for moving a belt following a player in virtual reality. As shown in FIG. 1 , the method for moving a belt following a player in virtual reality includes the following steps:

S102. Obtain the forward vector of the current rotation of the player's head, obtain the interpolation value of the current player's head bowing according to the current vector and the normal vector of the horizontal plane, obtain the maximum distance that the belt moves backward, and combine the interpolation value with The maximum distance is multiplied to obtain the first distance that the belt needs to move backward.

In an embodiment, obtaining the interpolation of the current player bowing his head according to the current vector and the normal vector of the horizontal plane includes: performing a dot product of the current vector and the normal vector of the horizontal plane, and obtaining an included angle according to the dot product; The degree of the included angle is subtracted from 90 degrees to obtain a difference, and the difference is divided by 90 degrees to obtain an interpolation value of the current player bowing his head.

Preferably, the method further includes: when the degree of the included angle is greater than 90 degrees, setting the degree of the included angle to 90 degrees.

Firstly, in the present invention, the rotation and position of the player's head are known in the virtual reality game. There are two technical algorithm cores in the present invention, one is slow movement and rotation with time delay, and the other is backward displacement with the head bowed. The present invention sets the belt class ToolBelt in the unreal engine of the game. ToolBelt has the following core member variables and member functions:

The float variable BeltMoveSpeed is the belt movement speed coefficient, because the belt displacement speed is related to the current distance between the belt and the player. This distance multiplied by this coefficient is the current speed, which can be adjusted according to the actual demand effect.

float variable BeltMoveMinSpeed, the minimum speed of the belt, when the distance is infinitely close to the player, the speed will be infinitely small, so set the minimum speed to avoid infinitely slow movement

float variable BeltDistance, the maximum distance that the belt moves backwards. When the angle between the player's head and the horizontal plane is 0, the belt displacement is 0. When the angle between the player's head and the horizontal is 90 degrees, the maximum backward displacement of the belt is This BeltDistance.

The float variable BeltHeight, a coefficient of belt height, is multiplied by the player's current height to get where the current belt height should be.

The float variable BeltRotSpeed is the same as BeltMoveSpeed, the difference is that this is the rotation coefficient

float variable BeltRotMinSpeed, the minimum rotation speed of the belt

float variable RotChangeMinAngle, the minimum rotation angle of the belt, when the angle difference between the rotation value of the player and the rotation value of the belt is less than this value, no rotation is required

The function UpdateTransform is called in the Tick function (the frame function that comes with Unreal Engine, which is called once per frame), and continuously updates the position and rotation of the belt, which processes all the main algorithms.

The function GetTargetLocationAndRotation, obtains the target position and rotation, because the movement algorithm uses a delay, when the player moves, it does not pass in an instant, but there will be a process of moving past, so use this function to obtain the target position and rotation, Use the algorithm to let the belt displacement rotate past the target point.

Specifically, first obtain the target position and rotation, the position to which the belt needs to move and the rotation value to which it is rotated. Call the GetTargetLocationAndRotation function. In the GetTargetLocationAndRotation function, first obtain the current position and rotation of the player's head. The target rotation can directly return the current player's head rotation. The target displacement needs to be processed. The specific processing of the target displacement is: obtain the forward vector of the current rotation of the player's head, that is, the orientation of the player's head, and then perform a dot product with the normal vector (0,0,-1) of the horizontal plane to obtain the cos value of the included angle. Then use inverse trigonometric functions to find the angle in degrees. If the angle value is greater than 90, it is regarded as 90. Because the player is head-up when the angle is greater than 90 degrees, and the player cannot see his belt at this time, it can be handled the same as when the head is forward. Furthermore, subtract this degree from 90 degrees, and then divide by 90 degrees to obtain the interpolation value of the current player bowing his head. 1 when the head is at its lowest point, and 0 when the head is forward. This interpolation is multiplied by the BeltDistance to get the distance that needs to be moved back. That is, the first distance that the belt needs to move backward is obtained.

S104. Obtain the projection vector of the current player's head orientation on the horizontal plane, convert the projection vector into a unit vector, multiply the unit vector by the first distance to obtain a displacement vector of the first distance, and obtain the player The coordinates of the current position of the head of the head are subtracted from the coordinates of the current position by the displacement vector to obtain the coordinates of the second distance to which the belt is about to move.

Specifically, get the projection vector of the current player's head orientation on the horizontal plane, then convert it into a unit vector, multiply it by the distance that needs to be moved back obtained above, that is, the displacement vector of the first distance, subtract the first from the current position of the head The displacement vector of the distance is the destination location that the GetTargetLocationAndRotation function needs to return. The target position is the coordinate of the second distance to which the belt is about to move.

S106. Obtain the current first position coordinates of the waist belt, subtract the first position coordinates from the second distance coordinates to obtain a distance difference, obtain the belt displacement speed coefficient, and obtain the belt displacement speed coefficient according to the waist belt displacement speed coefficient and the The distance difference yields the current speed of the belt.

In an embodiment, the obtaining the current speed of the belt according to the belt displacement movement speed coefficient and the distance difference includes: calculating the square value of the distance difference, and combining the square value with the The belt displacement movement speed coefficients are multiplied to obtain the belt speed in the current frame, and the current speed of the belt is obtained according to the belt speed in the current frame.

In an embodiment, the obtaining the current speed of the belt according to the speed of the belt in the current frame includes: obtaining the minimum speed of the belt; comparing the minimum speed with the speed of the belt in the current frame, The maximum speed among the minimum speed and the speed of the belt in the current frame is taken as the current speed of the belt.

Specifically, in the UpdateTransform function, first obtain the current first position coordinates of the belt, and subtract the first position coordinates from the second distance coordinates to obtain the distance difference. Then, the obtained distance difference is squared, and then multiplied by BeltMoveSpeed to obtain the current speed.

Furthermore, compare the current speed with BeltMoveMinSpeed, and the one with the larger value is the true current speed of this frame.

S108. Obtain the time of the previous frame, multiply the current speed by the time of the previous frame to obtain a third distance, obtain the displacement coordinates of the current frame of the belt, and multiply the displacement coordinates of the current frame with the The third distance is accumulated to obtain the current update position of the belt, and the belt moves based on the update position.

Specifically, call the GetWorldDeltaSeconds function to obtain the time of the previous frame, multiply the current speed by the time of one frame to obtain the third distance, obtain the displacement coordinates of the current frame of the belt, and accumulate the displacement coordinates of the current frame with the third distance to obtain the current The updated location of the belt. Among them, use the GetActorLocation function that comes with Unreal Engine to get the displacement coordinates of the current frame of the belt.

By implementing the above method, obtain the forward vector of the current rotation of the player's head, obtain the interpolation value of the current player's lowered head according to the current vector and the normal vector of the horizontal plane, obtain the maximum distance for the belt to move backward, and perform a product operation on the interpolation value and the maximum distance , get the first distance that the belt needs to move back; get the projection vector of the current player's head orientation on the horizontal plane, convert the projection vector into a unit vector, multiply the unit vector by the first distance, get the displacement vector of the first distance, and get the player The coordinates of the current position of the head of the head, subtract the displacement vector from the coordinates of the current position, and obtain the coordinates of the second distance that the belt is about to move to; obtain the current first position coordinates of the belt, and subtract the first from the coordinates of the second distance Get the distance difference from the position coordinates, get the belt displacement speed coefficient, and get the current speed of the belt according to the belt displacement speed coefficient and the distance difference; get the time of the previous frame, multiply the current speed with the time of the previous frame, and get the third Distance, to obtain the displacement coordinates of the current frame of the belt, and accumulate the displacement coordinates of the current frame with the third distance to obtain the updated position of the current belt, and the belt moves based on the updated position. Therefore, when the player looks down at the belt during the player's movement, the belt will be near the waist a little behind the player's head instead of vertically below the player's head, which satisfies the effect of game settings in virtual reality and improves the experience of virtual games.

In an embodiment, after S108, it further includes: obtaining the first rotation of the belt and the second rotation of the player, obtaining the angle difference between the first rotation and the second rotation; obtaining the displacement, movement, and rotation of the belt coefficient, the product of the angle difference and the belt displacement rotation coefficient is obtained to obtain the rotation speed of the belt; through the time of the previous frame, the time of the previous frame is multiplied by the rotation speed of the belt, obtaining the rotation value of the belt; obtaining the current rotation of the belt, adding the current rotation to the rotation value of the belt to obtain an update rotation of the belt, and the belt is moving according to the update rotation rotate.

In an embodiment, the step of obtaining the rotation speed of the waist belt by multiplying the product of the angle difference and the rotation coefficient of the belt displacement includes: multiplying the product of the angle difference and the rotation coefficient of the belt displacement, Obtain the product value; obtain the minimum rotation speed of the belt; obtain the maximum value of the product value and the minimum rotation speed of the belt, and use the maximum value as the rotation speed of the belt.

Then rotation is the same as displacement, but the rotation is not squared. Specifically, the angle difference between the rotation of the belt and the rotation of the player is acquired. Among them, use the GetAcatorRotation function to get the current rotation of the player. Because the belt needs to be kept horizontal forever, this angle difference is the angle difference projected onto the horizontal plane, and then the angle difference is multiplied by BeltRotSpeed to get the rotation speed of the belt, and then multiplied by the time obtained by GetWorldDeltaSeconds to get the rotation value, the current belt rotation The belt rotation is updated by adding this rotation value to the rotation, and each frame is processed repeatedly in this way, and the displacement and rotation of the belt is completed.

Among them, if the rotation speed obtained by multiplying the angle difference by BeltRotSpeed is smaller than the minimum rotation speed of the belt, then use this minimum speed instead of the calculated rotation speed of the belt. That is, the minimum rotation speed of the belt is multiplied by the time obtained by GetWorldDeltaSeconds to obtain the rotation value.

Therefore, the present invention realizes that in the process of the player's movement, the belt will follow the player slowly with a delay, and decelerate as the player approaches. When the player looks down at the belt, the belt will be near the waist a little behind the head instead of the head. vertically below, the experience is even better.

In one embodiment, the present invention also provides a mobile device in which the belt follows the player in virtual reality. As shown in Figure 2, the device includes:

The first obtaining module 22 is used to obtain the forward vector of the current rotation of the player's head, obtain the interpolation value of bowing the current player's head according to the normal vector of the current vector and the horizontal plane, and obtain the maximum distance that the belt moves backward , performing a product operation on the interpolation and the maximum distance to obtain the first distance that the belt needs to move backward;

The second obtaining module 24 is used to obtain the projection vector of the current player's head orientation on the horizontal plane, convert the projection vector into a unit vector, multiply the unit vector by the first distance, and obtain the displacement of the first distance vector, obtaining the coordinates of the current position of the player's head, and subtracting the displacement vector from the coordinates of the current position to obtain the coordinates of the second distance to which the belt is about to move;

The third acquiring module 26 is used to acquire the current first position coordinates of the belt, subtract the first position coordinates from the coordinates of the second distance to obtain a distance difference, and acquire the displacement movement speed coefficient of the belt, according to the waist belt The current speed of the belt is obtained by the displacement moving speed coefficient and the distance difference;

The fourth obtaining module 28 is used to obtain the time of the last frame, multiply the current speed by the time of the last frame to obtain a third distance, obtain the displacement coordinates of the current frame of the belt, and convert the current The frame displacement coordinates are accumulated with the third distance to obtain the updated position of the current belt, and the belt moves based on the updated position.

For a specific definition of a belt-following player's movement device in virtual reality, please refer to the above-mentioned definition of a belt-following player's movement method in virtual reality, which will not be repeated here. All or part of the modules in the belt-following player's mobile device in virtual reality can be implemented in whole or in part by software, hardware and combinations thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.

A computer-readable storage medium provided by an embodiment of the present invention, an application program is stored on the computer-readable storage medium, and when the program is executed by a processor, a virtual reality belt in any one of the above-mentioned embodiments is implemented Follows the player's movement method. Wherein, the computer-readable storage medium includes but is not limited to any type of disk (including floppy disk, hard disk, optical disk, CD-ROM, and magneto-optical disk), ROM (Read-Only Memory, read-only memory), RAM (Random Access Memory , random memory), EPROM (EraSable Programmable Read-Only Memory, Erasable Programmable Read-Only Memory), EEPROM (Electrically EraSable Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or optical card . That is, a storage device includes any medium that stores or transmits information in a readable form by a device (eg, a computer, a mobile phone), and may be a read-only memory, a magnetic disk or an optical disk, and the like.

An embodiment of the present invention also provides a computer application program, which runs on a computer, and the computer application program is used to implement a method for moving a belt-following player in virtual reality according to any one of the above-mentioned embodiments.

In addition, FIG. 3 is a schematic diagram of the structural composition of the computer device in the embodiment of the present invention.

The embodiment of the present invention also provides a computer device, as shown in FIG. 3 . The computer device includes a processor 302, a memory 303, an input unit 304, a display unit 305 and other components. Those skilled in the art can understand that the device structure shown in FIG. 3 does not limit all devices, and may include more or less components than those shown in the figure, or combine certain components. The memory 303 can be used to store the application program 301 and various functional modules, and the processor 302 runs the application program 301 stored in the memory 303 to execute various functional applications and data processing of the device. The memory may be internal memory or external memory, or include both internal memory and external memory. The internal memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, or random access memory. External storage may include hard disk, floppy disk, ZIP disk, U disk, magnetic tape, etc. The memory disclosed in the present invention includes but is not limited to these types of memory. The memory disclosed in the present invention is only an example rather than a limitation.

The input unit 304 is used for receiving signal input, and receiving a keyword input by a user. The input unit 304 may include a touch panel and other input devices. The touch panel can collect the user's touch operation on or near it (such as the user's operation on the touch panel or near the touch panel by using any suitable object or accessory such as a finger or a stylus), and The program drives the corresponding connection device; other input devices may include, but are not limited to, one or more of physical keyboards, function keys (such as playback control buttons, switch buttons, etc.), trackballs, mice, and joysticks. The display unit 305 can be used to display information input by the user or provided to the user, as well as various menus of the terminal device. The display unit 305 may be in the form of a liquid crystal display, an organic light emitting diode, or the like. The processor 302 is the control center of the terminal equipment, and uses various interfaces and lines to connect various parts of the entire equipment, by running or executing software programs and/or modules stored in the memory 303, and calling data stored in the memory to execute Various functions and processing data.

As an embodiment, the computer device includes: one or more processors 302, a memory 303, and one or more application programs 301, wherein the one or more application programs 301 are stored in the memory 303 and are configured to Executed by the one or more processors 302, the one or more application programs 301 are configured to execute a method for moving a belt-following player in virtual reality in any one of the above-mentioned embodiments.

In addition, a method, device, computer equipment, and storage medium for belt-following player movement in virtual reality provided by the embodiments of the present invention have been described in detail above. In this paper, specific examples should be used to illustrate the principles and implementation methods of the present invention. To clarify, the descriptions of the above embodiments are only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope In summary, the content of this specification should not be construed as limiting the present invention.

Claims (10)

1. A method for moving the belt following the player in virtual reality, characterized in that the method comprises: Obtain the forward vector of the current rotation of the player's head, obtain the interpolation value of the current player's head down according to the current vector and the normal vector of the horizontal plane, obtain the maximum distance that the belt moves backward, and combine the interpolation value with the The maximum distance is multiplied to obtain the first distance that the belt needs to move back; Obtain the projection vector of the current player's head orientation on the horizontal plane, convert the projection vector into a unit vector, multiply the unit vector by the first distance to obtain the displacement vector of the first distance, and obtain the player's head the coordinates of the current position of the head, and subtract the displacement vector from the coordinates of the current position to obtain the coordinates of the second distance to which the belt is about to move; Obtain the current first position coordinates of the belt, subtract the first position coordinates from the coordinates of the second distance to obtain a distance difference, obtain the belt displacement movement speed coefficient, and obtain the belt displacement movement speed coefficient according to the distance between the belt displacement movement speed coefficient and the distance difference to obtain the current speed of the belt, wherein the displacement speed of the belt is related to the current distance between the belt and the player, and the current speed can be adjusted according to actual needs; Obtaining the time of the previous frame, multiplying the current speed by the time of the previous frame to obtain a third distance, obtaining the displacement coordinates of the current frame of the belt, and multiplying the displacement coordinates of the current frame by the first The three distances are accumulated to obtain the updated position of the current belt, and the belt moves based on the updated position. 2. The method according to claim 1, wherein the interpolation of the current player bowing his head is obtained according to the current vector and the normal vector of the horizontal plane, comprising: Performing a dot product of the current vector and the normal vector of the horizontal plane, and obtaining an included angle according to the dot product; The degree of the included angle is subtracted from 90 degrees to obtain a difference, and the difference is divided by 90 degrees to obtain an interpolation value of the current player bowing his head. 3. The method according to claim 2, wherein the method further comprises: When the degree of the included angle is greater than 90 degrees, the degree of the included angle is set to 90 degrees. 4. The method according to claim 1, wherein the obtaining the current speed of the belt according to the belt displacement moving speed coefficient and the distance difference comprises: Calculate the square value of the distance difference, multiply the square value by the belt displacement movement speed coefficient to obtain the speed of the belt in the current frame, and obtain the current speed of the belt according to the speed of the belt in the current frame . 5. The method according to claim 4, wherein said obtaining the current speed of the belt according to the speed of the belt in the current frame comprises: Get the minimum speed of the belt; The minimum speed is compared with the speed of the belt in the current frame, and the maximum speed of the minimum speed and the speed of the belt in the current frame is taken as the current speed of the belt. 6. The method according to claim 1, further comprising: Obtain the first rotation of the belt and the second rotation of the player, and obtain the angle difference between the first rotation and the second rotation; Obtaining the rotation coefficient of the belt displacement movement, multiplying the angle difference by the rotation coefficient of the belt displacement movement to obtain the rotation speed of the belt; Multiplying the time of the previous frame by the rotation speed of the belt to obtain the rotation value of the belt through the time of the previous frame; The current rotation of the belt is obtained, and the current rotation is added to the rotation value of the belt to obtain an updated rotation of the belt, and the belt rotates during movement according to the updated rotation. 7. The method according to claim 6, wherein the step of obtaining the rotation speed of the belt by the product of the angle difference and the belt displacement rotation coefficient comprises: multiplying the product of the angle difference and the belt displacement rotation coefficient to obtain a product value; Obtain the minimum rotation speed of the belt; Obtain the maximum value of the product value and the minimum rotation speed of the belt, and use the maximum value as the rotation speed of the belt. 8. A mobile device in which the belt follows the player in virtual reality, characterized in that the device comprises: The first obtaining module is used to obtain the forward vector of the current rotation of the player's head, obtain the interpolation of the current player's head bowing according to the current vector and the normal vector of the horizontal plane, and obtain the maximum distance for the belt to move backward, performing a product operation on the interpolation value and the maximum distance to obtain the first distance that the waistband needs to move backward; The second acquisition module is used to acquire the projection vector of the current player's head orientation on the horizontal plane, convert the projection vector into a unit vector, multiply the unit vector by the first distance, and obtain the displacement vector of the first distance , obtaining the coordinates of the current position of the player's head, and subtracting the displacement vector from the coordinates of the current position to obtain the coordinates of the second distance to which the belt is about to move; The third acquiring module is used to acquire the current first position coordinates of the belt, subtract the first position coordinates from the coordinates of the second distance to obtain a distance difference, acquire the belt displacement movement speed coefficient, and obtain the belt displacement according to the belt displacement The current speed of the belt is obtained by moving the speed coefficient and the distance difference; The fourth obtaining module is used to obtain the time of the last frame, multiply the current speed by the time of the last frame to obtain a third distance, obtain the displacement coordinates of the current frame of the belt, and convert the current frame to The displacement coordinates of and the third distance are accumulated to obtain the updated position of the current belt, and the belt moves based on the updated position. 9. A computer device, comprising a memory, a processor, and an application program stored on the memory and operable on the processor, characterized in that, when the processor executes the application program, any one of claims 1 to 7 is realized. A step of said method. 10. A computer-readable storage medium, on which an application program is stored, wherein, when the application program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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