CN114904279A - Data preprocessing method, device, medium and equipment - Google Patents

Abstract

The embodiment of the application provides a data preprocessing method, a data preprocessing device, a storage medium and terminal equipment, wherein the method comprises the steps of determining a virtual object model and a model map of the virtual object model, and automatically generating an initial animation model; receiving an animation frame generation instruction aiming at the animation model, wherein the animation frame generation instruction comprises a target chartlet mark of the virtual object model in the current animation frame; controlling only a target sub-map corresponding to the target map identification to be displayed in the expression map on the model map according to the target map identification, calling a material ball and mapping the target sub-map to the virtual object model based on a UV map technology; and correspondingly writing the target map identification and the animation frame number corresponding to the target map identification into the animation generation control file. The embodiment of the application can realize that the virtual character in the game scene can perform expression action switching according to a set program, and expression switching is realized on the basis of a 3D model, so that the manufacturing cost can be reduced compared with the prior art.

Description

Data preprocessing method, device, medium and equipment

technical field

The present application relates to the technical field of electronic communication, in particular to the technical field of data preprocessing, and in particular to a data preprocessing method, apparatus, medium and device.

Background technique

In some development projects with fast project development progress and short cycle, the quality requirements of virtual character animation are usually ignored in order to speed up the progress, so that there is no expression animation when the virtual character is displayed or on standby, only fixed and unchanging. Expression maps lead to action performances, the characters are not emotionally vivid enough, and the expressions are rigid. Especially in scenarios such as game battle, interactive experience, and interface display, the user experience is poor due to the lack of emotional richness of virtual characters.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a data preprocessing method, device, medium, and device. By pasting expression maps of different expression types on the face of a virtual object model, the facial expressions of the virtual characters can be changed, and the virtual characters in the game scene can be changed. The character can switch between expressions and actions according to the set program, and the switch of expressions is realized based on the 3D model, which can reduce the production cost compared with the prior art.

On the one hand, the embodiments of the present application provide a data preprocessing method, including:

determining a virtual object model and a model map of the virtual object model, and automatically generating an initial animation model, wherein the model map includes an expression map, and the expression map includes at least two sub-maps and different sub-maps have different expression types;

receiving an animation frame generation instruction for the animation model, the animation frame generation instruction including the target texture identifier of the virtual object model in the current animation frame;

Control the expression map to display only the target sub-map corresponding to the target map ID on the model map according to the target map ID, call the shader, and map the target sub-map to the target sub-map based on the UV mapping technology. Describe the corresponding area of the virtual object model;

The target texture identifier and the animation frame number corresponding to the target texture identifier are correspondingly written into the animation generation control file.

In the data preprocessing method described in this embodiment of the present application, before the controlling of the expression map to display only the target sub-map corresponding to the target texture identifier on the model texture according to the target texture identifier, The method also includes:

The expression map is divided into pixels on the model map to obtain at least two independent sub-maps, wherein each sub-map has an independent set of pixels in the model map, and the set of pixels is controlled by controlling the set of pixels. The on or off of can control its corresponding sub-map to show or hide on the model map.

In the data preprocessing method described in the embodiment of the present application, the controlling on the model texture to display only the target sub-map corresponding to the target texture identifier on the model texture according to the target texture identifier includes:

Determine the corresponding target pixel set according to the target map identifier, control the target pixel set to be in an open state on the model map, and control other pixel sets to be in a closed state on the model map, so as to control the Only the target sub-map corresponding to the target map identifier is displayed in the expression map.

In the data preprocessing method described in the embodiment of the present application, the animation frame generation instruction further includes control parameters of the limb controller of the virtual object model body in the current animation frame; in the receiving animation frame generation instruction for the animation model Afterwards, the method further includes:

The control parameters are input into the limb controller to control limb movements of the virtual object model.

In the data preprocessing method described in the embodiment of the present application, after the target texture identifier and the animation frame number corresponding to the target texture identifier are written into the animation generation control file, the method further includes: :

Importing the animation generation control file into a preset game program, and analysing the animation generation control file to obtain the number of animation frames and texture identifiers corresponding to each animation frame included;

Sort each of the animation frames from small to large, and calculate the time interval between two adjacent target frames according to the adjacent two target frame numbers;

The time interval is imported into a game timer, and the game timer is used to switch and display a picture of an animation frame corresponding to each of the animation frame numbers.

In the data preprocessing method described in the embodiment of the present application, the time interval between two adjacent target frame numbers is calculated and obtained according to the adjacent two target frame numbers, including:

Calculate the frame difference between two adjacent animation frames;

The time interval is obtained by multiplying the frame number difference by a preset time parameter.

In the data preprocessing method described in the embodiment of the present application, the method further includes:

A visual interface is provided, the visual interface includes a display area, the display area is used to display the animation model, and the facial expression of the animation model in the display area changes in real time following the switching of the target texture identifier.

Correspondingly, the embodiments of the present application further provide a data preprocessing device, including:

A data import module is used to determine a virtual object model and a model map of the virtual object model, and automatically generate an initial animation model, wherein the model map includes an expression map, and the expression map includes at least two sub-maps and different sub-maps. Stickers have different emoji types;

an instruction receiving module, configured to receive an animation frame generation instruction for the animation model, the animation frame generation instruction including the target texture identifier of the virtual object model in the current animation frame;

The data mapping module is used to control the expression map to display only the target sub-map corresponding to the target map identifier on the model map according to the target map identifier, call the shader, and map the expression map based on the UV map technology. The target sub-map is mapped to the corresponding area of the virtual object model;

The data writing module is configured to write the target texture identifier and the animation frame number corresponding to the target texture identifier into the animation generation control file correspondingly.

Correspondingly, another aspect of the embodiments of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to execute the above-mentioned Data preprocessing methods.

Correspondingly, another embodiment of the present application further provides a terminal device, including a processor and a memory, the memory stores a plurality of instructions, and the processor loads the instructions to perform the data preprocessing as described above. method.

Embodiments of the present application provide a data preprocessing method, apparatus, medium, and device. The method automatically generates an initial animation model by determining a virtual object model and a model map of the virtual object model, wherein the model map Including an expression map, the expression map includes at least two sub-maps and the expression types of different sub-maps are different; receiving an animation frame generation instruction for the animation model, the animation frame generation instruction includes the target of the virtual object model in the current animation frame Texture identification; control the expression map to display only the target sub-map corresponding to the target texture identification on the model texture according to the target texture identification, call the shader, and convert the target sub-map based on the UV mapping technology Map to the corresponding area of the virtual object model; write the target texture identifier and the animation frame number corresponding to the target texture identifier into the animation generation control file correspondingly. In the embodiment of the present application, the facial expression of the virtual character can be changed by pasting expression maps of different expression types on the face part of the virtual object model, so that the virtual character in the game scene can switch between expressions and actions according to the set program, and is The expression switching based on the 3D model can reduce the production cost compared with the prior art.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic flowchart of a data preprocessing method provided by an embodiment of the present application.

FIG. 2 is an example diagram of an animation model in the data preprocessing method provided by the embodiment of the present application.

FIG. 3 is an example diagram of a model map in a data preprocessing method provided by an embodiment of the present application.

FIG. 4 is a schematic structural diagram of a data preprocessing apparatus provided by an embodiment of the present application.

FIG. 5 is another schematic structural diagram of a data preprocessing apparatus provided by an embodiment of the present application.

FIG. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

The embodiment of the present application provides a data preprocessing method, and the data preprocessing method can be applied to a terminal device. The terminal device may be a smart phone, a tablet computer or the like.

In some development projects with fast project development progress and short cycle, the quality requirements of virtual character animation are usually ignored in order to speed up the progress, so that there is no expression animation when the virtual character is displayed or on standby, only fixed and unchanging. Expression maps lead to action performances, the characters are not emotionally vivid enough, and the expressions are rigid. Especially in scenarios such as game battle, interactive experience, and interface display, the user experience is poor due to the lack of emotional richness of virtual characters.

At present, in order to realize the effect of changing the expression of the virtual character in the scene, there are usually two implementation schemes. One is to use plane expression bones to switch animations in the spine software of 2D games, that is, add multiple expression pictures to the 2D virtual character, add corresponding bone skins to each expression picture, and use bone displacement, rotation and scaling to achieve this. Transition animation between expressions. The advantage of this solution is that there is no limit to the exaggerated expression form, but it is only suitable for use in 2D display or 2D games, and is not suitable for development projects with fast development progress and short cycle, which has certain limitations. The other is to use pure 3D facial bone binding to achieve expression animation in 3D games, adding a lot of bones to the face, skinning the model, and using bones to drive model vertex changes or blendshape (expression model) to achieve. The advantage of this program is that the animation is delicate and vivid, and it is suitable for animated movies and high-quality games. However, due to the complexity of character face model design and binding technology, high production cost and long cycle, it is also not suitable for development projects with fast project development progress and short cycle.

In order to solve the above technical problems, the embodiments of the present application provide a data preprocessing method. Using the data preprocessing method provided by the embodiments of the present application, the operation mode of game assets can be optimized by combining with the blockchain technology, so that the game assets can still be used in the player's game without the security problem of being stolen. After going offline, gain value-added benefits based on unused game assets, and improve gamers' gaming experience.

Please refer to FIG. 1-FIG. 3. FIG. 1 is a schematic flowchart of a data preprocessing method provided by an embodiment of the present application. FIG. 2 is an example diagram of an animation model in the data preprocessing method provided by the embodiment of the present application. FIG. 3 is an example diagram of a model map in a data preprocessing method provided by an embodiment of the present application. The data preprocessing method is applied to a terminal device, and is mainly used in the data preprocessing process of game software before running. The method may include the following steps:

Step 101: Determine a virtual object model and a model map of the virtual object model, and automatically generate an initial animation model, wherein the model map includes an expression map, and the expression map includes at least two sub-maps and expressions of different sub-maps different types.

It should be noted that this step is mainly completed by an animator, and the virtual object model and the model texture of the virtual object model can be mapped in Maya, and an initial animation model can be automatically generated in the animation production scene of Maya. Among them, the virtual object model is mainly completed by the modeler, and the modeling operation of the virtual object model can be completed in 3dsMax, and the model texture for making the animation model can be created at the same time. It needs to be explained that the virtual object model refers to the 3D model used to construct the virtual character. Model map refers to a template used to store expression maps. From the perspective of a computer, model maps refer to the storage carrier of expression maps. The expression map in the model map contains at least two sub-maps, and different sub-maps have different expression types, such as "happy" or "sad". The facial expression of the virtual character can be changed by pasting the expression maps of different expression types on the face part of the virtual object model, so that the virtual character in the game scene can switch the expression and action according to the set program, and it is based on the 3D model. Compared with the existing technology, the expression switching can be realized, and the production cost can be reduced. It should be understood that the model map also includes a body map used to map the body parts of the virtual object model.

Step 102: Receive an animation frame generation instruction for the animation model, where the animation frame generation instruction includes a target texture identifier of the virtual object model in the current animation frame.

In this embodiment, an animator may input an animation frame generation instruction for an animation model in Maya, where the animation frame generation instruction includes a target texture identifier of the virtual object model in the current animation frame. It should be explained that the texture ID refers to the ID corresponding to different sub-maps, such as 1, 2, and 3. The animator can switch the current facial expression of the animated model in real time by inputting different texture identifiers in the operation interface.

In some embodiments, when the animation frame generation instruction further includes control parameters of the limb controller of the virtual object model body in the current animation frame, the method further includes:

The control parameters are input into the limb controller to control limb movements of the virtual object model.

Step 103: Control the expression map to display only the target sub-map corresponding to the target map ID on the model map according to the target map ID, call the shader, and convert the target sub-map based on the UV mapping technology. Mapped to corresponding regions of the virtual object model.

In this embodiment, in order to simplify the processing, the models of the face part and the limb part of the virtual character are not separated, but are integrated together as a whole. The material of each character model is assigned a map that represents the base color of the model, that is, the model map. So you can put multiple sub-maps all in one model map. Multiple sub-maps corresponding to different expressions need to be exactly the same size, each part occupies one-sixteenth of the whole map, and is arranged in the top quarter of the whole map. In order to make the face of the animated model display normally, the modeler needs to expand the uv texture of the face model with facial expression changes to one-sixteenth of the upper left of the entire model texture (that is, 0< =x<=0.25, 0<=y<=0.25), which exactly corresponds to the first expression in the four expressions, that is, the default expression of the animation model. When you need to switch to the second expression, you need to offset the uv coordinates of the animated model of the face area in the material. Since the uv coordinates of the face area have a certain range, the face area can be determined by the size of the uv coordinates in the material, so that the x value of the uv coordinate can be directly switched to the second expression by adding 0.25, The y value remains the same. It can be seen from this that the four expressions are numbered in sequence, and n is used to represent the numerical value of the number. When it is necessary to switch to the nth expression, it is only necessary to add 0.25*n to the x value of the uv coordinate of the face area. desired effect. By setting n as a parameter of the model material, you can control the switching of expressions through the material.

Since it is impossible to dynamically offset the uv coordinates of the model in the 3D modeling software, from the perspective of computer operation, the program cannot call the shader to directly read the target sub-map at the specified position from the model map, resulting in the animation model only The default first expression is displayed, and the effect of other expressions cannot be seen, which will cause the animator to be unable to easily edit the expression animation. In order to solve this problem, this scheme controls the expression map on the model map to display only the target sub-map corresponding to the target map identifier, calls the shader, and maps the target sub-map to the corresponding area of the virtual object model based on UV mapping technology. Complete the model texture operation, which is convenient for the animator to edit the expression animation.

It should be noted that, before controlling the expression map to display only the target sub-map corresponding to the target map identifier on the model map according to the target map identifier, the expression map needs to be pixel-split on the model map to obtain at least two independent Sub-maps, in which each sub-map has an independent set of pixels in the model map. By controlling the opening or closing of the pixel set, the corresponding sub-maps can be displayed or hidden on the model map.

Specifically, the corresponding target pixel set is determined according to the target map identifier, the target pixel set is controlled to be turned on on the model map, and other pixel sets are controlled to be turned off on the model map, so as to control the In the expression map, only the target sub-map corresponding to the target map identifier is displayed.

It should be explained that all image files are two-dimensional and a plane. The horizontal direction is U and the vertical direction is V. Therefore, through the two-dimensional UV coordinate system of this plane, any pixel on the image can be located. UV is short for UV texture map coordinates (which are analogous to the X, Y, Z axes of a spatial model). It defines the information of the position of each pixel on the image. These pixels are related to the 3D model to determine the position of the surface texture map. UV is to accurately correspond each pixel on the image to the surface of the model object. The positions of the gaps between the pixels are image-smoothly interpolated by the software, which is known as UV mapping.

Step 104: Write the target texture identifier and the animation frame number corresponding to the target texture identifier into the animation generation control file correspondingly.

In this embodiment, the animation generation control file is created by using json encoding technology to obtain a json format file. Specifically, the animation generation control file is generated by using MaxScript programming technology and json encoding technology. The reason for using MaxScript programming technology is: MaxScript is the native programming language of 3ds Max and has high compatibility across versions. The reason for using json encoding technology is: json is a commonly used encoding format, which is suitable for different software and engines and has a high degree of versatility. The benefit of the tool is that the automated creation of multi-dimensional material plug-ins greatly reduces the time-saving efficiency of manual creation by nearly 100%, and improves efficiency while ensuring zero-error accuracy.

By writing the target texture ID and the animation frame number corresponding to the target texture ID into the animation generation control file, the material texture in the same level directory is automatically matched with the texture ID by using the MaxScript programming method. After the production is completed, it supports the output of the target texture logo change schedule, so that the effect of synchronization with the expression switching animation produced by the animator in the 3D modeling software can be seen in the game scene.

In some embodiments, after the target texture identifier and the number of animation frames corresponding to the target texture identifier are written into the animation generation control file, the method further includes:

Importing the animation generation control file into a preset game program, and analysing the animation generation control file to obtain the number of animation frames and texture identifiers corresponding to each animation frame included;

Sort each of the animation frames from small to large, and calculate the time interval between two adjacent target frames according to the adjacent two target frame numbers;

The time interval is imported into a game timer, and the game timer is used to switch and display a picture of an animation frame corresponding to each of the animation frame numbers.

In this embodiment, when the game is running, the logic script can directly read the exported animation generation control file and parse the data therein. The data records the number of frames that need to switch expressions and the corresponding texture identifiers. Record these data in an array and sort them according to the number of frames from small to large. Read the first data of the array, and calculate the time to trigger the next expression switch according to the number of frames. The interval time can be obtained by multiplying the frame number of an expression switch (0 in the first play) by 1/30. Use the timer function of the game engine to set the processing of switching the material parameters after this interval, so that you can switch to the corresponding expression at the correct time. By analogy, if the data recorded in the animation generation control file is processed in this way, you can see the exact same effect as the expression switching animation made by the animator in the 3D modeling software.

In some embodiments, the method further includes:

A visual interface is provided, the visual interface includes a display area, the display area is used to display the animation model, and the facial expression of the animation model in the display area changes in real time following the switching of the target texture identifier.

In this embodiment, by setting the visual interface, it is convenient for the animator to view the facial expression switching effect of the animation model in real time during the animation production process.

All the above-mentioned optional technical solutions can be combined arbitrarily to form optional embodiments of the present application, which will not be repeated here.

During specific implementation, the present application is not limited by the execution order of the described steps, and certain steps may also be performed in other sequences or simultaneously under the condition of no conflict.

It can be seen from the above that the data preprocessing method provided by the embodiment of the present application automatically generates an initial animation model by determining a virtual object model and a model map of the virtual object model, wherein the model map includes an expression map, and the expression The texture includes at least two sub textures and different sub textures have different expression types; receive an animation frame generation instruction for the animation model, the animation frame generation instruction includes the target texture identifier of the virtual object model in the current animation frame; according to the target The texture ID controls the expression texture to display only the target sub-map corresponding to the target texture ID on the model map, calls the shader, and maps the target sub-map to the virtual object model based on UV mapping technology The corresponding area of the target map and the number of animation frames corresponding to the target map identifier and the target map identifier are correspondingly written into the animation generation control file. In the embodiment of the present application, the facial expression of the virtual character can be changed by pasting expression maps of different expression types on the face part of the virtual object model, so that the virtual character in the game scene can switch between expressions and actions according to a set program, and It is based on the 3D model to realize expression switching, which can reduce the production cost compared with the existing technology.

The embodiment of the present application further provides a data preprocessing apparatus, and the data preprocessing apparatus may be integrated in a terminal device. The terminal device may be a smart phone, a tablet computer or the like.

Please refer to FIG. 4 , which is a schematic structural diagram of a data preprocessing apparatus provided by an embodiment of the present application. The data preprocessing device 30 may include:

The data import module 31 is configured to determine a virtual object model and a model map of the virtual object model, and automatically generate an initial animation model, wherein the model map includes an expression map, and the expression map includes at least two sub-maps that are different from each other. The expression types of the sub-maps are different;

an instruction receiving module 32, configured to receive an animation frame generation instruction for the animation model, the animation frame generation instruction including the target texture identifier of the virtual object model in the current animation frame;

The data mapping module 33 is configured to control the expression map to display only the target sub-map corresponding to the target map identifier on the model map according to the target map identifier, call the shader, and map all the sub-maps based on the UV map technology. The target sub-map is mapped to the corresponding area of the virtual object model;

The data writing module 34 is configured to write the target texture identifier and the animation frame number corresponding to the target texture identifier into the animation generation control file correspondingly.

In some embodiments, the device further includes a pixel splitting module, configured to perform pixel splitting on the expression map on the model texture to obtain at least two independent sub-maps, wherein each sub-map is in the The model texture has an independent set of pixel points, and by controlling the opening or closing of the pixel set, the corresponding sub-map can be controlled to be displayed or hidden on the model texture.

In some embodiments, the data mapping module 33 is configured to determine the corresponding target pixel set according to the target map identifier, control the target pixel set to be in an open state on the model map, and control other The pixel point set is in a closed state on the model map, so as to control only the target sub-map corresponding to the target map identifier to be displayed in the expression map.

In some embodiments, the animation frame generation instruction further includes control parameters of the limb controller of the virtual object model body in the current animation frame; the apparatus further includes a limb control module for inputting the control parameters to the The limb controller controls limb movements of the virtual object model.

In some embodiments, the device further includes a preprocessing module, configured to import the animation generation control file into a preset game program, and parse the animation generation control file to obtain the animation corresponding to each animation frame contained therein. Frame number and texture identification; sort each animation frame number from small to large, and calculate the time interval between two adjacent target frames according to the number of adjacent two target frames; import the time interval into the game timer , through the game timer switching and displaying the picture of the animation frame corresponding to each of the animation frame numbers.

In some embodiments, the preprocessing module is configured to calculate a frame number difference between two adjacent animation frame numbers; the time interval is calculated by multiplying the frame number difference by a preset time parameter.

In some embodiments, the device further includes a display module for providing a visual interface, the visual interface includes a display area, the display area is used to display the animation model, and the animation model in the display area The facial expression changes in real time following the switching of the target texture identification.

During specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities.

As can be seen from the above, the data preprocessing device 30 provided in the embodiment of the present application determines a virtual object model and a model map of the virtual object model through the data import module 31, and automatically generates an initial animation model, wherein the model map includes an expression map, the expression map includes at least two sub-maps and the expression types of different sub-maps are different; the instruction receiving module 32 receives an animation frame generation instruction for the animation model, and the animation frame generation instruction includes the virtual object in the current animation frame The target texture identification of the model; the data mapping module 33 controls the expression texture on the model texture according to the target texture identification to display only the target sub-map corresponding to the target texture identification, calls the shader, and based on the UV mapping The technology maps the target sub-map to the corresponding area of the virtual object model; the data writing module 34 writes the target texture identifier and the animation frame number corresponding to the target texture identifier into the animation generation control file correspondingly.

Please refer to FIG. 5. FIG. 5 is another schematic structural diagram of the data preprocessing apparatus provided by the embodiment of the present application. The data preprocessing apparatus 30 includes a memory 120, one or more processors 180, and one or more application programs, wherein The one or more application programs are stored in the memory 120 and configured to be executed by the processor 180; the processor 180 may include a data import module 31, an instruction reception module 32, a data mapping module 33, and a data write module module 34. For example, the structures and connection relationships of the above components can be as follows:

Memory 120 may be used to store applications and data. The application programs stored in the memory 120 contain executable codes. Applications can be composed of various functional modules. The processor 180 executes various functional applications and data processing by executing application programs stored in the memory 120 . Additionally, memory 120 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, memory 120 may also include a memory controller to provide processor 180 access to memory 120 .

The processor 180 is the control center of the device, uses various interfaces and lines to connect various parts of the entire terminal, and executes various functions of the device by running or executing the application program stored in the memory 120 and calling the data stored in the memory 120. function and process data for overall monitoring of the installation. Optionally, the processor 180 may include one or more processing cores; preferably, the processor 180 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc. .

Specifically in this embodiment, the processor 180 loads the executable code corresponding to the process of one or more application programs into the memory 120 according to the following instructions, and the processor 180 executes the executable code stored in the memory 120 application to achieve various functions:

The data import module 31 is configured to determine a virtual object model and a model map of the virtual object model, and automatically generate an initial animation model, wherein the model map includes an expression map, and the expression map includes at least two sub-maps that are different from each other. The expression types of the sub-maps are different;

an instruction receiving module 32, configured to receive an animation frame generation instruction for the animation model, the animation frame generation instruction including the target texture identifier of the virtual object model in the current animation frame;

The data mapping module 33 is configured to control the expression map to display only the target sub-map corresponding to the target map identifier on the model map according to the target map identifier, call the shader, and map all the sub-maps based on the UV map technology. The target sub-map is mapped to the corresponding area of the virtual object model;

The data writing module 34 is configured to write the target texture identifier and the animation frame number corresponding to the target texture identifier into the animation generation control file correspondingly.

In some embodiments, the device further includes a pixel splitting module, configured to perform pixel splitting on the expression map on the model texture to obtain at least two independent sub-maps, wherein each sub-map is in the The model texture has an independent set of pixel points, and by controlling the opening or closing of the pixel set, the corresponding sub-map can be controlled to be displayed or hidden on the model texture.

In some embodiments, the data mapping module 33 is configured to determine the corresponding target pixel set according to the target map identifier, control the target pixel set to be in an open state on the model map, and control other The pixel point set is in a closed state on the model map, so as to control only the target sub-map corresponding to the target map identifier to be displayed in the expression map.

In some embodiments, the animation frame generation instruction further includes control parameters of the limb controller of the virtual object model body in the current animation frame; the apparatus further includes a limb control module for inputting the control parameters to the The limb controller controls limb movements of the virtual object model.

In some embodiments, the device further includes a preprocessing module, configured to import the animation generation control file into a preset game program, and parse the animation generation control file to obtain the animation corresponding to each animation frame contained therein. Frame number and texture identification; sort each animation frame number from small to large, and calculate the time interval between two adjacent target frames according to the number of adjacent two target frames; import the time interval into the game timer , through the game timer switching and displaying the picture of the animation frame corresponding to each of the animation frame numbers.

In some embodiments, the preprocessing module is configured to calculate a frame number difference between two adjacent animation frame numbers; the time interval is calculated by multiplying the frame number difference by a preset time parameter.

In some embodiments, the device further includes a display module for providing a visual interface, the visual interface includes a display area, the display area is used to display the animation model, and the animation model in the display area The facial expression changes in real time following the switching of the target texture identification.

The embodiments of the present application also provide a terminal device. The terminal device may be a smart phone, a computer, a tablet computer or other devices.

Referring to FIG. 6 , FIG. 6 shows a schematic structural diagram of a terminal device provided by an embodiment of the present application, where the terminal device can be used to implement the data preprocessing method provided in the foregoing embodiment. The terminal device 1200 can be a smart phone or a tablet computer.

As shown in FIG. 6 , the terminal device 1200 may include an RF (Radio Frequency, radio frequency) circuit 110 , a memory 120 including one or more (only one is shown in the figure) computer-readable storage medium, an input unit 130 , and a display unit 140 , the sensor 150 , the audio circuit 160 , the transmission module 170 , the processor 180 including one or more (only one is shown in the figure) processing core, and the power supply 190 and other components. Those skilled in the art can understand that the structure of the terminal device 1200 shown in FIG. 6 does not constitute a limitation on the terminal device 1200, and may include more or less components than the one shown, or combine some components, or different components layout. in:

The RF circuit 110 is used for receiving and sending electromagnetic waves, realizing mutual conversion between electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices. RF circuitry 110 may include various existing circuit elements for performing these functions, eg, antennas, radio frequency transceivers, digital signal processors, encryption/decryption chips, subscriber identity module (SIM) cards, memory, and the like. The RF circuit 110 may communicate with various networks such as the Internet, an intranet, a wireless network, or with other devices over a wireless network.

The memory 120 can be used to store software programs and modules, such as program instructions/modules corresponding to the data preprocessing method in the above-mentioned embodiments, the processor 180 executes various functional applications and data by running the software programs and modules stored in the memory 120. deal with. Memory 120 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 120 may further include memory located remotely from the processor 180, and these remote memories may be connected to the terminal device 1200 through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The input unit 130 may be used to receive input numerical or character information, and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, the input unit 130 may include a touch-sensitive surface 131 as well as other input devices 132 . Touch-sensitive surface 131, also known as a touch display or trackpad, can collect user touch operations on or near it (such as a user using a finger, stylus, etc., any suitable object or accessory on or on touch-sensitive surface 131). operation near the touch-sensitive surface 131 ), and drive the corresponding connection device according to a preset program. Optionally, the touch-sensitive surface 131 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 180, and can receive the commands sent by the processor 180 and execute them. Additionally, the touch-sensitive surface 131 may be implemented using resistive, capacitive, infrared, and surface acoustic wave types. In addition to the touch-sensitive surface 131 , the input unit 130 may also include other input devices 132 . Specifically, other input devices 132 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

The display unit 140 may be used to display information input by the user or information provided to the user and various graphical user interfaces of the terminal device 1200, which may be composed of graphics, text, icons, videos and any combination thereof. The display unit 140 may include a display panel 141. Optionally, the display panel 141 may be configured in the form of an LCD (Liquid Crystal Display, liquid crystal display), an OLED (Organic Light-Emitting Diode, organic light emitting diode), and the like. Further, the touch-sensitive surface 131 may cover the display panel 141, and when the touch-sensitive surface 131 detects a touch operation on or near it, it is transmitted to the processor 180 to determine the type of the touch event, and then the processor 180 determines the type of the touch event according to the touch event. Type provides corresponding visual output on display panel 141 . Although in FIG. 6, the touch-sensitive surface 131 and the display panel 141 are implemented as two separate components to realize the input and output functions, in some embodiments, the touch-sensitive surface 131 and the display panel 141 may be integrated to realize the input and output functions.

The terminal device 1200 may also include at least one sensor 150, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 141 according to the brightness of the ambient light, and the proximity sensor may close the display panel 141 when the terminal device 1200 is moved to the ear and/or backlight. As a kind of motion sensor, the gravitational acceleration sensor can detect the magnitude of acceleration in all directions (usually three axes), and can detect the magnitude and direction of gravity when stationary, and can be used for applications that recognize the attitude of mobile phones (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that can be configured on the terminal device 1200, here No longer.

The audio circuit 160 , the speaker 161 , and the microphone 162 can provide an audio interface between the user and the terminal device 1200 . The audio circuit 160 can transmit the received audio data converted electrical signal to the speaker 161, and the speaker 161 converts it into a sound signal for output; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal, which is converted by the audio circuit 160 After receiving, it is converted into audio data, and then the audio data is output to the processor 180 for processing, and then sent to, for example, another terminal through the RF circuit 110, or the audio data is output to the memory 120 for further processing. The audio circuit 160 may also include an earphone jack to provide communication between the peripheral earphone and the terminal device 1200 .

The terminal device 1200 can help users to send and receive emails, browse web pages, access streaming media, etc. through the transmission module 170 (for example, a Wi-Fi module), which provides users with wireless broadband Internet access. Although FIG. 6 shows the transmission module 170, it can be understood that it does not belong to the necessary structure of the terminal device 1200, and can be completely omitted as required within the scope of not changing the essence of the invention.

The processor 180 is the control center of the terminal device 1200, and uses various interfaces and lines to connect various parts of the entire mobile phone, by running or executing the software programs and/or modules stored in the memory 120, and calling the data stored in the memory 120. , perform various functions of the terminal device 1200 and process data, so as to monitor the mobile phone as a whole. Optionally, the processor 180 may include one or more processing cores; in some embodiments, the processor 180 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface and Applications, etc., the modem processor mainly deals with wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 180 .

The terminal device 1200 also includes a power supply 190 for supplying power to various components. In some embodiments, the power supply can be logically connected to the processor 180 through a power management system, so as to implement functions such as discharge management and power consumption management through the power management system. Power supply 190 may also include one or more DC or AC power sources, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and any other components.

Although not shown, the terminal device 1200 may also include a camera (eg, a front camera, a rear camera), a Bluetooth module, and the like, which will not be repeated here. Specifically in this embodiment, the display unit 140 of the terminal device 1200 is a touch screen display, and the terminal device 1200 further includes a memory 120 and one or more programs, wherein one or more programs are stored in the memory 120 and configured Execution of one or more programs by one or more processors 180 includes instructions for:

The data import instruction is used to determine a virtual object model and a model map of the virtual object model, and automatically generate an initial animation model, wherein the model map includes an expression map, and the expression map includes at least two sub-maps and different sub-maps. Stickers have different emoji types;

an instruction receiving instruction for receiving an animation frame generation instruction for the animation model, the animation frame generation instruction including the target texture identifier of the virtual object model in the current animation frame;

The data mapping instruction is used to control the expression map to display only the target sub-map corresponding to the target map identifier on the model map according to the target map identifier, call the shader, and convert the The target sub-map is mapped to the corresponding area of the virtual object model;

The data writing instruction is used for correspondingly writing the target texture identifier and the animation frame number corresponding to the target texture identifier into the animation generation control file.

In some embodiments, the program further includes a pixel splitting instruction for performing pixel splitting on the expression map on the model texture to obtain at least two independent sub-maps, wherein each sub-map is in The model texture has an independent set of pixel points, and by controlling the opening or closing of the pixel set, the corresponding sub-map can be controlled to be displayed or hidden on the model texture.

In some embodiments, the data mapping instruction is used to determine the corresponding target pixel set according to the target texture identifier, control the target pixel set to be in an open state on the model texture, and control other pixels at the same time The point set is in a closed state on the model map, so as to control only the target sub-map corresponding to the target map identifier to be displayed in the expression map.

In some embodiments, the animation frame generation instruction further includes control parameters of a limb controller of the virtual object model body in the current animation frame; the program further includes a limb control instruction for inputting the control parameters to the The limb controller controls limb movements of the virtual object model.

In some embodiments, the program further includes a preprocessing instruction for importing the animation generation control file into a preset game program, and analyzing the animation generation control file to obtain the animation corresponding to each animation frame contained therein Frame number and texture identification; sort each animation frame number from small to large, and calculate the time interval between two adjacent target frames according to the number of adjacent two target frames; import the time interval into the game timer , through the game timer switching and displaying the picture of the animation frame corresponding to each of the animation frame numbers.

In some embodiments, the preprocessing instruction is used to calculate a frame number difference between two adjacent animation frame numbers; the time interval is calculated by multiplying the frame number difference by a preset time parameter.

In some embodiments, the program further includes display instructions for providing a visual interface, the visual interface includes a display area, the display area is used to display the animation model, and the animation model in the display area The facial expression changes in real time following the switching of the target texture identification.

The embodiments of the present application also provide a terminal device. The terminal device may be a smart phone, a tablet computer or the like.

As can be seen from the above, an embodiment of the present application provides a terminal device 1200, and the terminal device 1200 performs the following steps: by determining a virtual object model and a model map of the virtual object model, and automatically generating an initial animation model, wherein, The model map includes an expression map, the expression map includes at least two sub-maps, and different sub-maps have different expression types; an animation frame generation instruction for the animation model is received, and the animation frame generation instruction includes the virtual image in the current animation frame. The target map identifier of the object model; according to the target map identifier, control the expression map to display only the target submap corresponding to the target map identifier on the model map, call the shader, and use the UV map technology to map all the The target sub-map is mapped to the corresponding area of the virtual object model; the target texture identifier and the animation frame number corresponding to the target texture identifier are correspondingly written into the animation generation control file. In the embodiment of the present application, the facial expression of the virtual character can be changed by pasting expression maps of different expression types on the face part of the virtual object model, so that the virtual character in the game scene can switch between expressions and actions according to a set program, and It is based on the 3D model to realize expression switching, which can reduce the production cost compared with the existing technology.

Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is run on a computer, the computer executes the method described in any of the foregoing embodiments. Data preprocessing methods.

It should be noted that, for the data preprocessing method described in this application, ordinary testers in the art can understand that all or part of the process of implementing the data preprocessing method described in the embodiments of this application can be controlled by a computer program. to complete, the computer program can be stored in a computer-readable storage medium, such as in the memory of the terminal device, and executed by at least one processor in the terminal device, and the execution process can include the data as described Flow of an embodiment of a preprocessing method. The storage medium may be a magnetic disk, an optical disk, a read only memory (ROM, Read Only Memory), a random access memory (RAM, Random Access Memory), and the like.

For the data preprocessing device of the embodiments of the present application, each functional module may be integrated in one processing chip, or each module may exist physically alone, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium, such as a read-only memory, a magnetic disk or an optical disk.

The data preprocessing method, apparatus, computer-readable storage medium, and terminal device provided by the embodiments of the present application have been described in detail above. The principles and implementations of the present application are described herein using specific examples, and the descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application; meanwhile, for those skilled in the art, according to the Thoughts, there will be changes in specific embodiments and application scopes. To sum up, the contents of this specification should not be construed as limitations on the present application.

Claims (10)

1. a data preprocessing method, is characterized in that, comprises: determining a virtual object model and a model map of the virtual object model, and automatically generating an initial animation model, wherein the model map includes an expression map, and the expression map includes at least two sub-maps and different sub-maps have different expression types; receiving an animation frame generation instruction for the animation model, where the animation frame generation instruction includes a target texture identifier of the virtual object model in the current animation frame; Control the expression map to display only the target sub-map corresponding to the target map ID on the model map according to the target map ID, call the shader, and map the target sub-map to the target sub-map based on the UV mapping technology. Describe the corresponding area of the virtual object model; The target texture identifier and the animation frame number corresponding to the target texture identifier are correspondingly written into the animation generation control file. 2 . The data preprocessing method according to claim 1 , wherein, in the control of the expression map on the model map according to the target map identifier, only the target corresponding to the target map identifier is displayed. 3 . Before the sub-map, the method further includes: The expression map is divided into pixels on the model map to obtain at least two independent sub-maps, wherein each sub-map has an independent set of pixels in the model map, and the set of pixels is controlled by controlling the set of pixels. The on or off of can control its corresponding sub-map to show or hide on the model map. 3 . The data preprocessing method according to claim 2 , wherein, according to the target texture identification, controlling the expression texture on the model texture to display only the target object corresponding to the target texture identification. 4 . stickers, including: Determine the corresponding target pixel set according to the target map identifier, control the target pixel set to be in an open state on the model map, and control other pixel sets to be in a closed state on the model map, so as to control the Only the target sub-map corresponding to the target map identifier is displayed in the expression map. 4. The data preprocessing method according to claim 1, wherein the animation frame generation instruction further comprises the control parameters of the limb controller of the virtual object model body in the current animation frame; After the animation frame generation instruction, the method further includes: The control parameters are input into the limb controller to control limb movements of the virtual object model. 5. The data preprocessing method according to claim 1, wherein after the target texture identifier and the number of animation frames corresponding to the target texture identifier are written into the animation generation control file correspondingly, the The method also includes: Importing the animation generation control file into a preset game program, and analysing the animation generation control file to obtain the number of animation frames and texture identifiers corresponding to each animation frame included; Sort each of the animation frames from small to large, and calculate the time interval between two adjacent target frames according to the adjacent two target frame numbers; The time interval is imported into a game timer, and the game timer is used to switch and display a picture of an animation frame corresponding to each of the animation frame numbers. 6. data preprocessing method as claimed in claim 5, is characterized in that, described according to two adjacent target frame numbers to calculate the time interval between adjacent two target frame numbers, comprising: Calculate the frame difference between two adjacent animation frames; The time interval is obtained by multiplying the frame number difference by a preset time parameter. 7. The data preprocessing method of claim 1, wherein the method further comprises: A visual interface is provided, the visual interface includes a display area, the display area is used to display the animation model, and the facial expression of the animation model in the display area changes in real time following the switching of the target texture identifier. 8. A data preprocessing device, comprising: A data import module is used to determine a virtual object model and a model map of the virtual object model, and automatically generate an initial animation model, wherein the model map includes an expression map, and the expression map includes at least two sub-maps and different sub-maps. Stickers have different emoji types; an instruction receiving module, configured to receive an animation frame generation instruction for the animation model, the animation frame generation instruction including the target texture identifier of the virtual object model in the current animation frame; The data mapping module is used to control the expression map to display only the target sub-map corresponding to the target map identifier on the model map according to the target map identifier, call the shader, and map the expression map based on the UV map technology. The target sub-map is mapped to the corresponding area of the virtual object model; The data writing module is configured to write the target texture identifier and the animation frame number corresponding to the target texture identifier into the animation generation control file correspondingly. 9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a plurality of instructions, and the instructions are adapted to be loaded by a processor to execute the method according to any one of claims 1-7. Data preprocessing methods. 10. A terminal device, comprising a processor and a memory, the memory stores a plurality of instructions, the processor loads the instructions to execute the data preprocessing according to any one of claims 1-7 method.

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