CN115797528A - Special effect processing method and device for virtual object and computer equipment - Google Patents

Abstract

The application provides a special effect processing method, a special effect processing device and computer equipment for a virtual object, wherein after an ablation special effect processing request including at least one dissolving direction of a virtual object model is obtained, a first coordinate value on a coordinate axis of each vertex pixel of the virtual object model consistent with the dissolving direction can be obtained, an ablation dynamic threshold value corresponding to each ablation moment is compared with the first coordinate value of the vertex pixel to determine an ablation edge value of the vertex pixel, then the ablation edge value, a first dynamic control parameter and edge noise of the virtual object model are processed to obtain a first special effect processing parameter corresponding to the dissolving direction, and therefore a chip shader is used for carrying out special effect rendering on the first special effect processing parameter, a preset ablation threshold value, a special effect background graph and vertex data output by the vertex shader, so that the virtual object can show ablation special effects in the dissolving direction, and ablation special effect display effects of different virtual objects are enriched.

Description

Special effect processing method, device and computer equipment for virtual object

technical field

The present application relates to the field of image processing applications, in particular to a special effect processing method, device and computer equipment for virtual objects.

Background technique

In animation applications such as games, the Shader graphical programming tool in the Unity engine is usually used to render the virtual objects in the application scene, so as to realize the death of the game character and the burning of the map when the virtual object is operated with the application. For example, after the game monster dies, it disappears from a certain position until it spreads to the whole body, achieving the ablation effect similar to the burning phenomenon, etc., so as to meet the display requirements of the game operation effect and improve the immersion and fun of the player playing the game.

At present, in order to achieve the ablation effect of virtual objects, Unity Shader starts by controlling the specific edge of the 3D model of the virtual object, and controls its transparency from deep to light to zero to achieve the effect of virtual objects disappearing, but this special effect processing method is limited. The ablation effect achieved is not ideal, which affects the game player experience.

Contents of the invention

In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

On the one hand, the present application proposes a method for processing special effects of a virtual object, the method comprising:

Obtain an ablation special effect processing request for the virtual object model; the ablation special effect processing request includes at least one dissolution direction for the virtual object model;

In response to the ablation special effect processing request, obtain a first coordinate value of each vertex pixel of the virtual object model; the first coordinate value refers to a coordinate value on a coordinate axis consistent with the dissolution direction;

According to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis, the ablation edge value of the corresponding vertex pixel is obtained; the size of the ablation edge value can represent the ablation of the corresponding pixel on the object map degree, the ablation dynamic threshold can change with the increase of ablation time;

Processing the ablation edge value, the first dynamic control parameter and the edge noise of the virtual object model to obtain the first special effect processing parameter corresponding to the dissolution direction; the first dynamic control parameter is used to control the corresponding The degree of ablation of vertex pixels in the direction of dissolution;

performing special effect rendering on the first special effect processing parameters, the preset ablation threshold, the special effect background image, and the vertex data output by the vertex shader through the fragment shader, so that the virtual object displays an ablation special effect in the dissolution direction; The special effect background image is obtained through object mapping processing on the virtual object model.

Optionally, the obtaining the ablation edge value of the corresponding vertex pixel according to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis includes:

Starting from the first vertex pixel in the dissolving direction, comparing the first coordinate value of each vertex pixel with the ablation dynamic threshold to obtain the ablation edge value of the corresponding vertex pixel at the current ablation moment;

According to the preset rules, the ablation dynamic threshold corresponding to the next ablation moment is obtained;

Comparing the first coordinate value of each vertex pixel with the ablation dynamic threshold corresponding to the next ablation moment, obtaining the ablation edge value of the corresponding vertex pixel at the next ablation moment, until the final Ablation of a vertex pixel.

Optionally, the obtaining the ablation dynamic threshold corresponding to the next ablation moment according to preset rules includes:

Acquiring the first maximum coordinate value and the first minimum coordinate value of each vertex pixel of the object map of the virtual object model in the dissolution direction;

Through interpolation, within the range from the first maximum coordinate value to the first minimum coordinate value, ablation dynamic thresholds corresponding to ablation moments are sequentially obtained.

Optionally, the processing the ablation edge value, the first dynamic control parameter, and the edge noise of the virtual object model to obtain the first special effect processing parameter corresponding to the dissolution direction includes:

obtaining a first dynamic control parameter in the dissolving direction for the virtual object model;

Obtain random noise, perform pixel chroma offset processing on the random noise, and obtain edge noise for the object map of the virtual object model;

adding the first dynamic control parameter and the edge noise to obtain an edge control parameter;

The edge control parameter and the ablation edge value are processed according to a step function, and the processing result is reversely processed to obtain a first special effect processing parameter corresponding to the dissolution direction.

Optionally, the acquisition process of the vertex data output by the vertex shader includes:

Obtaining perturbation noise for vertex coordinates of each vertex pixel of the virtual object model;

Using the disturbance noise to perform disturbance processing on the coordinate values of the vertex coordinates to obtain the disturbance vertex coordinates;

Performing linear interpolation between the original vertex coordinates and the interference vertex coordinates according to the ablation control parameters to obtain target vertex coordinates; the ablation control parameters are at least obtained according to the first dynamic control parameters;

The vertex coordinates of the target are processed by the vertex shader to obtain vertex data that can represent the display position of the target in the target space.

Optionally, the obtaining the ablation control parameter at least according to the first dynamic control parameter includes:

performing fusion processing on the first dynamic control parameter and the preset edge color gradient control parameter to obtain the edge control parameter;

A smooth step operation is performed on the edge control parameter, the first dynamic control parameter, and the first coordinate value to obtain an ablation control parameter in the dissolution direction.

In yet another aspect, the present application also proposes a virtual object special effect processing device, the device comprising:

An ablation special effect processing request obtaining module, configured to obtain an ablation special effect processing request for a virtual object model; the ablation special effect processing request includes at least one dissolution direction for the virtual object model;

The first coordinate value obtaining module is configured to respond to the ablation special effect processing request and obtain the first coordinate value of each vertex pixel of the virtual object model; the first coordinate value refers to a coordinate axis consistent with the dissolution direction coordinate value on

The ablation edge value obtaining module is used to obtain the ablation edge value of the corresponding vertex pixel according to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis; the size of the ablation edge value can represent the The ablation degree of the corresponding pixel on the object map, the ablation dynamic threshold can change with the increase of ablation time;

The first special effect processing parameter obtaining module is used to process the ablation edge value, the first dynamic control parameter and the edge noise for the virtual object model to obtain the first special effect processing parameter corresponding to the dissolution direction; The first dynamic control parameter is used to control the degree of ablation of the corresponding vertex pixel in the dissolution direction;

The special effect rendering module is used to perform special effect rendering on the first special effect processing parameters, the preset ablation threshold, the special effect background image and the vertex data output by the vertex shader through the fragment shader, so that the virtual object dissolves in the The ablation effect is displayed in the direction; the background image of the special effect is obtained by processing the object texture of the virtual object model.

Optionally, the ablation edge value obtaining module includes:

The first comparison unit is configured to compare the first coordinate value of each vertex pixel with the ablation dynamic threshold starting from the first vertex pixel in the dissolving direction, to obtain the ablation edge value of the corresponding vertex pixel at the current ablation moment;

The ablation dynamic threshold obtaining unit is configured to obtain the ablation dynamic threshold corresponding to the next ablation moment according to preset rules;

The second comparison unit is configured to compare the first coordinate value of each vertex pixel with the ablation dynamic threshold corresponding to the next ablation moment, to obtain the ablation edge value of the corresponding vertex pixel at the next ablation moment, until the completion The ablation of the last vertex pixel in the dissolve direction.

Optionally, the ablation dynamic threshold obtaining unit includes:

A coordinate value acquisition unit, configured to acquire the first maximum coordinate value and the first minimum coordinate value of each vertex pixel in the dissolution direction of the object map of the virtual object model;

The interpolation obtaining unit is configured to sequentially obtain the ablation dynamic threshold corresponding to the ablation moment within the range from the first maximum coordinate value to the first minimum coordinate value by interpolation.

In yet another aspect, the present application also proposes a computer device, the computer device comprising:

communication module;

The memory is used to store the program of the above-mentioned special effect processing method for the virtual object;

The processor is configured to load and execute the program stored in the memory, so as to implement the steps of the above-mentioned special effect processing method for a virtual object.

In yet another aspect, the present application also proposes a computer-readable storage medium on which a computer program is stored, wherein the computer program is loaded and executed by a processor to implement the above-mentioned special effect processing method for a virtual object.

It can be seen that based on the above technical solution, after the application obtains an ablation special effect processing request including at least one dissolution direction of the virtual object model, the first coordinate axis of each vertex pixel of the virtual object model on the coordinate axis consistent with the dissolution direction can be obtained. A coordinate value, compare the ablation dynamic threshold value corresponding to each ablation moment with the first coordinate value of the vertex pixel, determine the ablation edge value of the vertex pixel, and then, the ablation edge value, the first dynamic control parameter and the virtual object model The edge noise is processed to obtain the first special effect processing parameters corresponding to the dissolution direction, so that the first special effect processing parameters, the preset ablation threshold, the special effect background image and the vertex data output by the vertex shader are rendered by the fragment shader. , so that the virtual object displays the ablation special effect in the dissolving direction, and enriches the display effect of the ablation special effect of different virtual objects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a schematic diagram of the hardware structure of an optional example of computer equipment applicable to the special effect processing method for virtual objects proposed in this application;

Fig. 2 is a schematic diagram of the hardware structure of another optional example of computer equipment applicable to the special effect processing method for virtual objects proposed in this application;

FIG. 3 is a schematic flowchart of an optional example of the special effect processing method for virtual objects proposed in this application;

Fig. 4 is a schematic diagram of the creation process of Unity Shader Graph in the special effect processing method applicable to the virtual object proposed in this application;

Fig. 5 is a schematic diagram of the dynamic acquisition process of the ablation edge value of each pixel in the special effect processing method applicable to the virtual object proposed in this application;

FIG. 6 is a schematic diagram of the dynamic control parameter acquisition process applicable to the special effect processing method for virtual objects proposed in this application;

FIG. 7 is a schematic diagram of a method for obtaining edge noise in the special effect processing method applicable to virtual objects proposed in this application;

FIG. 8 is a schematic diagram of a method for obtaining special effect processing parameters in the special effect processing method applicable to virtual objects proposed in this application;

FIG. 9 is a schematic diagram of a method for obtaining edge gradient colors in the special effect processing method applicable to virtual objects proposed in this application;

10 is a schematic diagram of a special effect background image and a special effect rendering process applicable to the special effect processing method for virtual objects proposed in this application;

Fig. 11 is a schematic flowchart of another optional example of the method for processing special effects of virtual objects proposed in this application;

Fig. 12 is a schematic flowchart of another optional example of the method for processing special effects of virtual objects proposed in this application;

13 is a schematic diagram of the vertex perturbation process in the special effect processing method applicable to the virtual object proposed in this application;

Fig. 14 is a schematic diagram of a vertex data acquisition method applicable to the special effect processing method of a virtual object proposed in this application;

FIG. 15 is a schematic structural diagram of an optional example of a virtual object special effect processing device proposed in the present application.

Detailed ways

In view of the description in the background technology section, in the scene rendering processing such as the death of game characters and the burning of maps, it is hoped that the 3D model corresponding to the virtual object will disappear after corrosion and ablation, and at the same time let the particles appear and dissipate in the form of the model, turning into ash particles The effect of dissipation can make the virtual object start from the edge of either end of the complete state and gradually disappear in the form of dissolution; while in the process of summoning the appearance of the game character and changing the scene environment, it can start from the edge of either end of the expected virtual object , starting from zero in the form of particles and slowly appearing entities until the entire model is displayed.

Among them, in the process of ablation display and hiding, the effect achieved by the transparency control method of Unity Shader cannot be reflected in the ablation process, which affects the special effect display effect of virtual objects. Therefore, this application proposes to display the ablation effect from the edge of any end in the form of particles. In this regard, this application proposes to use Alpha Clip to cut the 3D model of the virtual object, and make a layer of random noise on the incision to control Alpha Clip. Random noise is used to perturb the edge of the ablation area from either end to mix a color, that is, the transition color between the ablation area and the non-ablation area, so that the ablation virtual object model fragments are scattered as ash, that is, in the form of particles from Any edge starts to reflect the ablation effect, and during the ablation process, the color of the particles can also be superimposed with a gradient color to better meet the display effects of different special effects, enrich the display methods of special effects, and improve the player's sense of immersion.

In the above-mentioned virtual object rendering process, the model construction and special effect realization process of different virtual objects can be based on but not limited to the graphics processing technology included in artificial intelligence (AI), machine learning (Machine Learning, ML)/ In-depth learning technology, computer vision technology (Computer Vision, CV) image recognition and processing, 3D object reconstruction, 3D technology, etc., this application does not elaborate on the implementation process of 3D model construction and rendering of virtual objects, which can be based on the application Combined with appropriate artificial intelligence technology to improve rendering efficiency and reliability.

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Referring to Fig. 1, it is a schematic diagram of the hardware structure of an optional example of computer equipment suitable for the special effect processing method of virtual objects proposed in this application. In combination with the above analysis, the computer equipment can be a server and/or electronic equipment, and the server can be an independent The physical server can also be a server cluster or distributed system composed of multiple physical servers, or a cloud server that supports cloud computing services. The server can be directly or indirectly connected to electronic devices such as smartphones, tablet computers, laptops, desktop computers, and netbooks through wired or wireless communication methods to meet the data interaction needs between electronic devices and servers. The specific communication connection method Subject to availability.

As shown in FIG. 1, the computer device proposed in the embodiment of the present application may include but not limited to: a communication module 11, a memory 12 and a processor 13, wherein:

The respective quantity of communication module 11, memory 12 and processor 13 can be at least one, and communication module 11, memory 12 and processor 13 can all be connected to communication bus, to realize the data communication between each other, the specific communication process may vary depending on the situation Certainly.

Communication module 11 can comprise GSM module, GPRS module, WIFI module, and/or realize the communication module etc. of other wireless communication network or wired communication network, can also comprise such as communication module such as USB interface, serial/parallel port, to realize computer equipment interior For the data transmission between the components, this application does not limit the type and quantity of the communication modules included in the computer equipment, which can be determined according to the data communication requirements in the application scenario, and this embodiment will not describe them in detail here. .

The memory 12 can be used to store a program implementing the special effect processing method for virtual objects proposed in this application, and the processor 13 can be used to load and execute the program stored in the memory 12 to realize the special effect processing method for virtual objects proposed in the embodiment of this application For each step, the specific implementation process can refer to but is not limited to the description of the corresponding part of the method embodiment below, and will not be described in detail here.

In the embodiment of the present application, the memory 12 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device or other volatile solid-state storage devices. The processor 13 can be a central processing unit (Central Processing Unit, CPU), an application-specific integrated circuit (application-specific integrated circuit, ASIC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a ready-made programmable gate array (FPGA) or other programmable logic devices, etc.

It should be understood that the structure of the computer device shown in FIG. 1 does not constitute a limitation to the computer device in the embodiment of the present application. In practical applications, the computer device may include more or fewer components than those shown in FIG. 1 , Or combine certain parts. Exemplarily, if the above-mentioned computer device is an electronic device as listed above, the electronic device may be configured with an application engine that supports the normal operation of the application, such as a game engine. In addition, from the perspective of hardware structure, as shown in FIG. 2, the electronic The device may also include, for example, a display, various input devices, various output devices, antennas, power supply modules, sensor modules, etc., which are not listed here in this application.

From the perspective of computer equipment, the special effect processing method of virtual objects proposed in this application will be described in detail below, but it is not limited to the implementation methods described in the following embodiments. Operations performed by the computer device of the example, it can be understood that the previous or subsequent operations are not necessarily performed in exact order. Instead, various steps may be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or one or several steps of operations can be removed from these processes. The following embodiments of the application are not described in detail, but all belong to the protection scope of the technical solutions of the application.

Referring to FIG. 3 , it is a schematic flowchart of an optional example of the method for processing special effects of virtual objects proposed in this application. This method is applicable to the computer device as described above. As shown in FIG. 3 , this method may include but is not limited to The following steps:

Step S31, obtaining an ablation special effect processing request for the virtual object model; the ablation special effect processing request includes at least one dissolution direction for the virtual object model;

In the actual application of this application, the Shader graphical programming tool (i.e. ShaderGraph) in the Unity engine can be used to realize the processing of the virtual object model data. Effect, you can create a Unity Shader Graph, as shown in Figure 4, the schematic diagram of the creation process of the Unity ShaderGraph. After starting the Shader Graph editor, you can right-click the Project (project) window in the output editing interface to output the submenu of the project. After that, you can follow the path of Create/Shader/UniversalRender Pipeline/Unlit Shader Graph to trigger the objects in the corresponding menu panel to create Unlit Shader Graph, but it is not limited to the creation method shown in Figure 4.

Afterwards, the embodiment of the present application can double-click the created Unlit Shader Graph file to open the ShaderGraph editor. Afterwards, the programming function that the Shader Graph editor has can be used to complete the special effect processing method of the virtual object proposed by the application, and obtain The virtual object model data of the obtained ablation effect is stored in the created Unlit Shader Graph file, so that when the player performs corresponding operations on the virtual object, the Unlit Shader Graph file can be executed to control the virtual object to present the preset ablation effect .

Based on the above analysis, in the editing interface of the Shader Graph editor, you can select the virtual object model that needs special effects processing this time, and the type of special effects that need to be displayed (this application takes the special effect type of ablation special effects that gradually dissolve in the form of particles as an example) Description), the virtual object displays the model data such as the dissolution direction of the ablation special effect process, click the confirmation button, and obtain the ablation special effect processing request for the selected virtual object model, the content contained in the ablation special effect processing request in this application and its obtaining method There is no limit, depending on the situation.

Wherein, the above-mentioned dissolving directions may include but are not limited to: from any orientation to the corresponding orientation (that is, obtained by increasing 180°) from top to bottom, from bottom to top, from left to right, from right to left, etc. The straight line direction formed by the straight line direction) can also be the curve direction of a preset curve or a custom curve (which can be determined according to the selected virtual object model structure, etc.). The method is not limited, depending on the situation.

It should be understood that the above-mentioned dissolving direction means that during the process of displaying the ablation effect of the selected virtual object, starting from the edge of a certain orientation or multiple orientations of the virtual object, it gradually dissolves in the form of particles according to a certain direction until the virtual object disappears. . It can be seen that for different virtual object models, the selected dissolution direction is different, and the special effect display effect of gradual ablation in the form of particles from the corresponding edge will also be different. You can flexibly choose one or more special effects for the virtual object model to display. A dissolve direction, whereby a directional dissolve of the virtual object model is achieved. It can be seen that, compared with the processing method in which each virtual object is ablated from a fixed edge, the directional ablation processing method proposed in this application realizes the personalized display of the ablation effects of different virtual objects and improves the accuracy of different virtual objects. The ablation effect shows the effect.

Step S32, in response to the ablation special effect processing request, obtain the first coordinate value of each vertex pixel of the virtual object model;

In practical applications, a virtual object model usually includes a set of triangular patches, each of which is composed of three vertices, and each vertex usually includes vertex data such as vertex position, normal/tangent texture coordinates, etc. Vertex data is processed, combined with other model data, to render virtual objects.

Therefore, according to the method described above, in the scene where it is determined that the ablation effect of the virtual object model according to the dissolution direction needs to be obtained, the virtual object model is cut to determine the vertex coordinates at the incision, as shown in Figure 5, which can be determined by Position The (position) node processes the virtual object model to obtain the vertex coordinates of each vertex pixel. The vertex coordinates are usually (x, y, z) three-dimensional coordinates in the world coordinate system, and can also include normal, color and Texture coordinates, this application does not limit the coordinate attributes included in the vertex coordinates, and it depends on the situation.

Afterwards, for the dissolving direction of the selected virtual object model, the first coordinate value of the corresponding component can be extracted from the coordinates of each vertex, and the dissolving direction is from top to bottom as an example for illustration, and the obtained pixel values of each vertex can be Vertex coordinate input Split (separate or split) node, separates each component in the vertex coordinate, as components such as R, G, B and A, present embodiment can extract the G component in the RGB, i.e. the y coordinate of the vertex coordinate; The selected dissolution direction is ablation from left to right. According to this component extraction method, the R component can be extracted, that is, the x coordinate of the vertex coordinates, etc. It can be seen that the dissolving directions pre-selected in this application are different, and this application can extract the coordinate value on the coordinate axis consistent with the dissolving direction among the multi-dimensional vertex coordinates of each vertex pixel, and record it as the first coordinate value for subsequent processing.

It should be noted that this application does not describe in detail the implementation process of the Position node and the Split node in the Shader Graph editor for processing the input data respectively.

Step S33, according to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis, obtain the ablation edge value of the corresponding pixel;

In the embodiment of this application, the ablation dynamic threshold Start of vertex pixels on different coordinate axes, that is, in different dissolution directions, can be different. The initial value is often relatively large, and can decrease with the increase of ablation time. This application has different dissolution directions. There is no limitation on the ablation dynamic thresholds corresponding to different ablation times.

Based on this, in order to make the dissolution of the virtual object model directional, the dissolution direction from top to bottom is still taken as an example for illustration, and the corresponding dynamic threshold of ablation is recorded as StartY. Afterwards, as shown in Figure 5, the extracted The first coordinate value of each vertex pixel is compared with the ablation dynamic threshold value, if the first coordinate value is larger than the ablation dynamic threshold value, the ablation edge value of the corresponding vertex pixel is larger, because the ablation edge value (ie Edge value ) can represent the ablation degree of the vertex pixel in the ablation process, and the larger the ablation edge value, the greater the ablation degree of the corresponding vertex pixel.

Among them, since the value of the ablation dynamic threshold will decrease with the increase of the ablation time T, before the ablation effect is displayed, that is, when T=0, since StartY is often relatively large, the first coordinate value of each vertex pixel in the virtual object model is usually are smaller than StartY at the current ablation time, so that the ablation edge Edge value of each vertex pixel is zero, then the object texture of the virtual object model is not dissolved; as the ablation time T increases from 0, the value of StartY can be set according to the preset value. Assuming that the rule is decreasing (can be executed by the Subtract node), among the vertex pixels of the object map from top to bottom, the number of vertex pixels whose first coordinate value is greater than the StartY corresponding to the ablation moment increases gradually. At the same time, the number of vertex pixels from top to bottom The ablation edge Edge value of the vertex pixel will gradually increase (relative to the ablation edge Edge value of the vertex pixel itself at the last ablation moment), and the ablation edge Edge value of the top vertex pixel is the largest, and its ablation degree is the largest, thus realizing The object map of the virtual object model is gradually dissolved from top to bottom, that is, the directional dissolution is realized.

The acquisition process of the edge value of the ablation edge of the vertex pixels in other dissolving directions is similar to the acquisition process of the edge value of the vertex pixel from top to bottom described above, and this application does not give examples for details. It should be noted that, in the ablation process of different dissolution directions, the implementation method of the ablation dynamic threshold value of the vertex pixels is not limited in this application. Optionally, as shown in FIG. 5, the first maximum coordinate value on the coordinate axis corresponding to each vertex pixel (the coordinate value input by Max(1) in FIG. 5) and the first The minimum coordinate value (such as the coordinate value input by Min(1) in Figure 5), after that, during the ablation process, starting from the first maximum coordinate value, the value can be decremented to obtain the StartY corresponding to the ablation moment.

Step S34, processing the ablation edge value, the first dynamic control parameter and the edge noise for the virtual object model to obtain the first special effect processing parameter corresponding to the direction of dissolution;

In order to dynamically control the ablation degree of the virtual object and preview the obtained ablation effects, it is usually necessary to set corresponding dynamic control parameters. For the ablation effects presented in different dissolution directions, the values of the set dynamic control parameters can be different, which can be based on The coordinate values on the coordinate axes corresponding to the vertex pixels are obtained, and this application does not limit the method for obtaining dynamic control parameters. In the embodiment of the present application, the ablation effect in the dissolving direction from top to bottom is still taken as an example for illustration, and the corresponding dynamic control parameter configured is the first dynamic control parameter, and the dynamic control parameters corresponding to other dissolving directions can be the second For the second dynamic control parameter or the third dynamic control parameter, etc., the present application does not give examples to describe the acquisition process one by one.

Based on this, referring to the schematic diagram of the dynamic control parameter acquisition process shown in Figure 6, a dissolve node disolve can be created, which is a float node and takes a value between 0 and 1. 0 can indicate no ablation, and 1 can indicate complete ablation. It can be seen that , the value of the disolve node (that is, the ablation parameter) can represent the degree of ablation, and it can be converted into an attribute corresponding to the vertex coordinates. The control type can be selected as Slider, and the dissolution parameter output by it (as shown in the Remap node in Figure 6 Output parameter, input the edge Edge (1) end of the Smoothstep node) and the first coordinate value of each vertex pixel (such as the y component of the vertex coordinate) to perform a smooth step (Smoothstep node as shown in Figure 6) to obtain the corresponding vertex The specific calculation process of the first dynamic control parameter of the pixel is not described in detail in this application.

Optionally, after obtaining the dynamic control parameters, you can also control the edge color gradient control gradient of the virtual object model, and sum it with the dissolution parameter (the operation of the Add node as shown in Figure 6), and the obtained corresponding gradient The control parameter (which can be input into the Edge (2) end of the Smoothstep node in Fig. 6) performs a smooth step with the above-mentioned dynamic control parameter and the first coordinate value to obtain the ablation control parameter of the first coordinate value of the corresponding vertex pixel, Used to achieve subsequent color mixing and vertex perturbation processing.

The edge perturbation of the virtual object model can be realized by using a noise signal. For this, the present application can create a noise node to obtain the edge noise for the virtual object model. Optionally, as shown in Figure 7, create a Simple Noise node, and use the timer Time to control the V component in the UV to offset, so as to realize the disturbance to the edge of the virtual object model. According to actual needs, you can use the Multiply node to perform noise Signal attenuation processing, etc., to obtain the edge noise of the virtual object model, the method for obtaining the edge noise will not be described in detail in this application.

According to but not limited to the method described above, after obtaining multiple model data such as the ablation edge value, the first dynamic control parameter, and the edge noise for the virtual object model, AlphaClip control can be realized accordingly, so that the virtual object model The edge particles are random to prepare for the subsequent effect of ash drifting in the direction of dissolution. Therefore, as shown in Figure 8, the present application can add the edge noise to the first dynamic control parameter (i.e., the slider control parameter) (as shown in the calculation of the Add node in Figure 8), and input the output parameter to the In(1) of the Step node. ) terminal, and at the same time, input the ablation edge value of each vertex pixel point into the Edge(1) terminal of the Step node to perform a Step step, and obtain a grainy boundary in the direction of dissolution, and reverse the step processing result (Figure 8 In the circle diagram, black means transparent, and white means opaque), get the first special effect processing parameter in the dissolving direction, and use it as the input parameter of AlphaClip, that is, input the Alpha ClipThreshold(1) end of Fragment, after that, you can pass The relationship between this parameter and Alpha (which can be recorded as the preset ablation threshold, usually 0.5) determines whether the corresponding vertex pixel color is discarded, and whether the vertex pixel position is hollowed out.

Step S35 , perform special effect rendering on the first special effect processing parameters, preset ablation threshold, special effect background image, and vertex data output by the vertex shader through the fragment shader, so that the virtual object displays the special effect of ablation in the dissolving direction.

In the embodiment of the present application, the special effect background image may be obtained by processing the object texture of the virtual object model, and there is no time limit for the specific processing implementation method. Optionally, since the above-mentioned first dynamic control parameter acquisition process combines the control parameters for controlling the edge color gradient gradient, that is, the first dynamic control parameter represents the edge gradient effect, thus, in the process of acquiring the special effect background image, As shown in Figure 9, you can select the background color of the object map for the virtual object model, such as the color selected by the Color node, mix it with the first dynamic control parameter, and then perform multiplier enhancement (such as the multiplication of the Multiply node operation) to get an edge gradient color.

Afterwards, as shown in Figure 10, the above-mentioned edge gradient color can be processed with the object texture of the virtual object model, such as sampling the object texture, and mixing the sampled image with the edge gradient color to obtain a special effect background image, even Get the edge color gradient of the object map of the virtual object model, enrich the special effects. It should be noted that, in the case where the edge color gradient is not required, the step of obtaining the edge gradient color may not be performed in the above process of obtaining the special effect background image. Similarly, in the process of obtaining the above first dynamic control parameter, different combinations may also be made. The control parameter of the edge gradient gradient, so that the first dynamic control parameter that controls the degree of edge ablation can be directly mixed with the sampled image of the object texture to obtain the required special effect background image, that is, the base color of the fragment shader. .

Among them, as shown in Figure 10, according to the method described above, the obtained first special effect processing parameters, preset ablation threshold and special effect background image can be input into the fragment shader (the Fragment node shown in Figure 10), combined with The vertex data output by the vertex shader, such as the spatial coordinates of the vertex pixels output on the screen, the method for obtaining the vertex data will not be described in detail in this application. The fragment shader renders according to the acquired multi-faceted data, and determines the final color of each vertex pixel in the virtual object model, so that the virtual object displays the ablation effect in the form of particles in the selected dissolution direction. This application applies to the fragment shader and The working principle of the vertex shader is not described in detail.

To sum up, in the embodiment of this application, when the virtual object needs to display the ablation special effect in the form of particles, the dissolution direction for displaying the ablation special effect can be flexibly selected, and combined with the selected dissolution direction, the ablation edge of each vertex pixel of the virtual object model can be obtained Afterwards, combined with the first dynamic control parameter used to control the ablation degree of each vertex pixel in the dissolving direction, and the edge noise used to realize the edge disturbance, the first special effect processing parameter corresponding to the dissolving direction is obtained. In this way, The fragment shader performs special effect rendering on the first special effect processing parameters, preset ablation threshold, special effect background image and vertex data, so that the object texture of the virtual object model can be gradually ablated from the edge in the form of particles according to the dissolution direction, Enriched the display effect of the dissolution effect of the virtual object.

Referring to FIG. 11 , it is a schematic flowchart of another optional example of the method for processing special effects of virtual objects proposed in this application. This method can describe an optional detailed implementation of the method for processing special effects of virtual objects proposed above. , this embodiment can describe in detail the acquisition process of the ablation edge value proposed above. For other execution steps of using the ablation edge value to realize the special effect processing of the virtual object, you can refer to the description of the corresponding part of the context. This embodiment does not Do elaborate. Based on this, referring to the schematic diagram of the acquisition process of the ablation edge value of each vertex pixel shown in FIG. 5, as shown in FIG. 11, the acquisition process of the ablation edge value may include:

Step S111, starting from the first vertex pixel in the dissolving direction of the selected virtual object model, comparing the first coordinate value of each vertex pixel with the ablation dynamic threshold to obtain the ablation edge value of the corresponding pixel at the current ablation moment;

Regarding the acquisition process of the first coordinate value of each vertex pixel, you can refer to the processing process of the Position node and the Split node described above, and you can obtain the coordinate axis coordinates in the vertex coordinates of each vertex pixel that are consistent with the selected dissolution direction, For example, the coordinate value on the y-axis is recorded as the first coordinate value, or the coordinate value on the x-axis is the second coordinate value, etc. The subsequent processing process for different coordinate components and the ablation special effect processing process in different dissolution directions are similar. This application does not give detailed descriptions with examples one by one, and still takes extracting the first coordinate value as an example for illustration.

According to the above method, after obtaining the position of the world coordinates of each vertex pixel, the calculation of the Edge value can be realized in ShaderGraph according to the method proposed in this application. As shown in Figure 5, at different ablation moments, the first coordinate value of each vertex pixel of the virtual object model can be compared with the corresponding ablation dynamic threshold to obtain an ablation edge value that can characterize the ablation degree of the vertex pixel at the corresponding ablation moment , the implementation process will not be described in detail.

Step S112, according to preset rules, obtain the ablation dynamic threshold corresponding to the next ablation moment;

As the ablation time increases, the ablation dynamic threshold will be gradually reduced according to the preset rules. Since the object texture of the virtual object model is determined, the coordinate values of each vertex pixel in a certain ablation direction are determined. In this way, In the process of decreasing the ablation dynamic threshold, the number of vertex pixels whose first coordinate value is greater than the ablation dynamic threshold is increasing, and the difference between the first coordinate value of such vertex pixels and the ablation dynamic threshold is also increasing. Larger, the corresponding vertex pixel is ablated more and more until its color attribute becomes transparent.

Optionally, the implementation process of step S112 may include but is not limited to: obtaining the first maximum coordinate value and the first minimum coordinate value of each vertex pixel in the dissolving direction of the object map of the virtual object model; Within the range from the first maximum coordinate value to the first minimum coordinate value, the ablation dynamic threshold corresponding to the ablation time is sequentially obtained, that is to say, as the ablation time increases, it can start from the first maximum coordinate value and gradually decrease through interpolation The value is obtained to obtain the ablation dynamic threshold at the current ablation moment that is smaller than the ablation dynamic threshold at the last ablation moment.

Exemplarily, the dissolving direction from top to bottom is taken as an example for illustration, assuming that the object texture of the virtual object model is a square image with a height of 4, the top pixel position MaxY (ie, the first maximum coordinate value) of the object texture = Image center position (transform.position.Y) + half of the image height (ie 2), similarly, the end pixel position MinY of the object map (ie the first minimum coordinate value) = image center position (transform.position.Y) - half the image height (ie 2). It should be understood that for object maps of other shapes, the maximum and minimum coordinate values in the selected dissolving direction can be calculated according to corresponding mathematical operation methods, and the calculation process will not be described in detail in this application.

Based on this, during the dissolution process from top to bottom within 1 second, the ablation time T can be increased from 0 to 1 second. Using the lerp interpolation function, the dynamic ablation threshold StartY value is gradually reduced from MaxY to MinY, which is equivalent to The StartY value moves from the top position of the object map to the minimum square position. Every time the StartY value moves down, that is, every time the StartY value decreases, the vertex pixels above the StartY value will gradually become transparent until it moves to After the bottom, everything becomes transparent (that is, disappears). During the moving process, the higher the position of the vertex pixel, the higher its transparency, until the transparency reaches 100%, that is, the corresponding vertex pixel disappears.

Similarly, if the selected dissolving direction is gradually ablated from bottom to top, the value selection process of the StartY value is similar, the difference is that when the StartY value moves from the bottom of the object map to the top, the StartY value will start from MinY until it increases to MaxY , according to the above comparison method, dynamically adjust the ablation edge value of each pixel point; the selected dissolution direction is ablation in the left and right directions, in this scene, the rightmost pixel position MaxX of the object map can be obtained (that is, the first maximum coordinate value )=picture center position (transform.position.X)+half of the picture width (ie 2); the leftmost pixel position MinX of the object map (ie the first minimum coordinate value)=picture center position (transform.position.X) - Half of the image width (ie 2), after that, during the ablation process from right to left or from left to right, the StartX at the corresponding moment can be dynamically obtained by interpolation within the range of the currently determined coordinate value change, The implementation process is not described in detail in this application.

It can be seen that when the dissolution direction is from top to bottom or from right to left, during the ablation process of the texture object of the virtual object model, the dynamically acquired StartY or StartX will gradually decrease according to the interpolation method; otherwise, If the dissolving direction is from bottom to top or from left to right, during the ablation process of the texture object of the virtual object model, the dynamically acquired StartY or StartX will gradually decrease, and this application does not limit the implementation process of step S112.

Step S113, compare the first coordinate value of each vertex pixel with the ablation dynamic threshold corresponding to the next ablation moment, and obtain the ablation edge value of the corresponding vertex pixel at the next ablation moment, until the last vertex pixel in the dissolution direction is completed of ablation.

As analyzed above, in order to obtain the ablation effect of the object texture of the virtual object model in the selected direction of dissolution, that is, to make the ablation of the object texture directional, the ablation dynamic threshold corresponding to each ablation moment can be compared with the corresponding coordinate axis of the vertex pixel The coordinate values of the vertices are compared to determine the ablation edge value of the vertex pixel. Since the dynamic threshold of ablation will change with the increase of ablation time, and this change is related to the dissolution direction, according to this processing method, it can ensure that the ablation edge value of each vertex pixel of the object map in the dissolution direction gradually increases, and the same ablation The closer the time is to the starting edge position of the dissolution direction, the larger the ablation edge value of the vertex pixel is, the greater the degree of dissolution of the vertex pixel representing this position is, and the earlier it is dissolved and disappears.

Referring to FIG. 12 , it is a schematic flowchart of another optional example of the special effect processing method for virtual objects proposed in this application. Described, as shown in Figure 12, the method may include:

Step S121, obtaining an ablation special effect processing request for the virtual object model; the ablation special effect processing request includes at least one dissolution direction for the virtual object model;

Step S122, in response to the ablation special effect processing request, obtain the vertex coordinates of each vertex pixel of the virtual object model, and determine the first coordinate value on the coordinate axis consistent with the dissolution direction;

Step S123, according to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis, obtain the ablation edge value of the corresponding pixel;

Regarding the implementation process of step S121-step S123, you can refer to the description of the corresponding part of the above embodiment, including but not limited to the separation and acquisition of the vertex coordinates and the coordinate values on different coordinate axes shown in FIG. This dynamically updates the ablation edge for each vertex pixel, resulting in an ablation effect with the selected dissolve direction.

Step S124, obtaining the first dynamic control parameter in the dissolving direction for the virtual object model;

Step S125, performing fusion processing on the first dynamic control parameter and the preset edge color gradient control parameter to obtain the edge control parameter;

Step S126, performing a smooth step operation on the edge control parameter, the first dynamic control parameter and the first coordinate value, to obtain the ablation control parameter in the dissolution direction;

Referring to the processing method shown in Figure 6 above, in order to dynamically control the degree of ablation, the corresponding first dynamic control parameters can be configured, and then the preset control parameters of the edge color gradient can be configured, and the processing result can be used as the input of the Smoothstep node. In order to realize the color gradient effect of the edge of the ablation direction of the virtual object model, the realization process may refer to the description of the corresponding part of the above embodiment, which will not be described in detail in this embodiment. Wherein, the ablation control parameters output by the Smoothstep node can be used as input parameters for subsequent color mixing and vertex perturbation processing.

Step S127, obtaining random noise, performing pixel chroma shift processing on the random noise, and obtaining edge noise for the object map of the virtual object model;

This application proposes to use noise (this application refers to the noise image) to disturb the edge of the object map. For this, as shown in Figure 7, create a noise Simple Noise node, and control the UV offset through a timer to obtain the required edge noise , for the specific processing and implementation process, refer to the description of the corresponding part of the above embodiment, and details are not described in this embodiment.

Step S128, adding the first dynamic control parameter and the edge noise to obtain the edge control parameter;

Step S129, according to the step function, process the edge control parameter and the ablation edge value, and reverse process the processing result to obtain the first special effect processing parameter corresponding to the dissolution direction;

Regarding the implementation process of step S128 and step S129, reference may be made to FIG. 8 and descriptions of corresponding parts thereof, and details are not described in this embodiment here.

Step S1210, obtaining disturbance noise for the vertex coordinates of each vertex pixel of the virtual object model;

This application can make a coordinate perturbation effect on the vertices of the area that needs to be ablated in the virtual object model, and construct a disturbance noise of coordinate perturbation. Referring to the vertex coordinate perturbation processing method shown in Figure 13, SimpleNoise can be used for the x of the vertex coordinates Perturb the coordinate value of the y-axis, and use the gradient noise Gradient Noise to perturb the coordinate value of the y-axis (taking the ablation direction from the up and down direction as an example, if the ablation direction is the left-right direction, here can be the x-axis), But it is not limited to the vertex coordinate disturbance processing method shown in FIG. 13 .

Step S1211, using disturbance noise to perform disturbance processing on the coordinate values of the vertex coordinates to obtain the disturbance vertex coordinates;

Step S1212, according to the ablation control parameters, perform linear interpolation between the original vertex coordinates and the interference vertex coordinates to obtain the target vertex coordinates;

Step S1213, process the target vertex coordinates through the vertex shader to obtain vertex data that can represent the target display position in the target space;

Combined with the vertex coordinate acquisition method described above in the Position node, after obtaining the vertex coordinates of the virtual object model, as shown in Figure 14, the interference noise can be added to the vertex coordinates according to the method described above to obtain the corresponding interference vertex Coordinates, after that, linear interpolation can be performed through the slider control (such as the ablation control parameters obtained above) to obtain the target vertex coordinates, which are input to the Position terminal of the vertex shader Vertex, and combined with the target space configuration parameters. Transformation process to obtain its display position on the screen, that is, to obtain the global space coordinates of the vertex, which is recorded as vertex data. This application does not describe the working principle of the vertex shader in detail.

Wherein, in the implementation process of the above-mentioned step S1212, in the Lerp function, A is the vertex coordinate position through interference, and B is the undisturbed vertex coordinate position, (T is exactly a time parameter controlled by the progress bar), the interpolation function expression The purpose is to perform interpolation calculation between A and B to obtain a value between A and B. After real-time calculation, the obtained value can change between A and B, and finally reflect that all vertices are in an unordered form. Transparency ranges from opaque to fully transparent.

Step S1214, perform special effect rendering on the first special effect processing parameters, the preset ablation threshold, the special effect background image, and the vertex data output by the vertex shader through the fragment shader, so that the virtual object displays the special effect of ablation in the dissolution direction.

To sum up, in the embodiment of this application, after blowing the input parameters of the fragment shader, the final color of each pixel of the object map of the virtual object model can be determined, so that the virtual object can be displayed in the form of particles in the selected dissolution direction. Displaying special effects of ablation enriches the display effect of ablation characteristics of different virtual objects and improves user experience.

Referring to FIG. 15 , it is a schematic structural diagram of an optional example of a virtual object special effect processing device proposed in this application, which may include:

An ablation special effect processing request obtaining module 151, configured to obtain an ablation special effect processing request for a virtual object model; the ablation special effect processing request includes at least one dissolution direction for the virtual object model;

The first coordinate value obtaining module 152 is configured to respond to the ablation special effect processing request and obtain the first coordinate value of each vertex pixel of the virtual object model; the first coordinate value refers to the coordinate consistent with the dissolution direction coordinate value on the axis;

The ablation edge value obtaining module 153 is used to obtain the ablation edge value of the corresponding vertex pixel according to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis; the size of the ablation edge value can represent the The ablation degree of the corresponding pixel on the object map, the ablation dynamic threshold can change with the increase of ablation time;

The first special effect processing parameter obtaining module 154 is configured to process the ablation edge value, the first dynamic control parameter and the edge noise for the virtual object model to obtain the first special effect processing parameter corresponding to the dissolution direction; The first dynamic control parameter is used to control the ablation degree of the corresponding vertex pixel in the dissolving direction;

The special effect rendering module 155 is configured to perform special effect rendering on the first special effect processing parameters, the preset ablation threshold, the special effect background map, and the vertex data output by the vertex shader through the fragment shader, so that the virtual object is rendered in the The ablation special effect is displayed in the dissolving direction; the background image of the special effect is obtained by processing the object texture of the virtual object model.

Optionally, the ablation edge value obtaining module 153 may include:

The first comparison unit is configured to compare the first coordinate value of each vertex pixel with the ablation dynamic threshold starting from the first vertex pixel in the dissolving direction, to obtain the ablation edge value of the corresponding vertex pixel at the current ablation moment;

The ablation dynamic threshold obtaining unit is configured to obtain the ablation dynamic threshold corresponding to the next ablation moment according to preset rules;

The second comparison unit is configured to compare the first coordinate value of each vertex pixel with the ablation dynamic threshold corresponding to the next ablation moment, to obtain the ablation edge value of the corresponding vertex pixel at the next ablation moment, until the completion The ablation of the last vertex pixel in the dissolve direction.

Optionally, the ablation dynamic threshold obtaining unit may include:

A coordinate value acquisition unit, configured to acquire the first maximum coordinate value and the first minimum coordinate value of each vertex pixel in the dissolution direction of the object map of the virtual object model;

The interpolation obtaining unit is configured to sequentially obtain the ablation dynamic threshold corresponding to the ablation moment within the range from the first maximum coordinate value to the first minimum coordinate value by interpolation.

In some embodiments, based on the above, the first special effect processing parameter obtaining module 154 may include:

a first dynamic control parameter obtaining unit, configured to obtain a first dynamic control parameter in the dissolving direction for the virtual object model;

The edge noise obtaining unit is used to obtain random noise, and perform pixel chroma offset processing on the random noise to obtain edge noise for the object map of the virtual object model;

an edge control parameter obtaining unit, configured to add the first dynamic control parameter and the edge noise to obtain an edge control parameter;

The special effect processing parameter obtaining unit is configured to process the edge control parameter and the ablation edge value according to a step function, reversely process the processing result, and obtain the first special effect processing parameter corresponding to the dissolution direction.

Optionally, in order to obtain the vertex data output by the vertex shader, the above-mentioned device may further include:

A disturbance noise obtaining module, configured to obtain disturbance noise for the vertex coordinates of each vertex pixel of the virtual object model;

The interfering vertex coordinate obtaining module is used to use the disturbance noise to perform disturbance processing on the coordinate values of the apex coordinates to obtain the interfering vertex coordinates;

The target vertex coordinate obtaining module is used to perform linear interpolation between the original vertex coordinates and the interference vertex coordinates according to the ablation control parameters to obtain the target vertex coordinates; the ablation control parameters are at least based on the first dynamic control get parameters;

The vertex data obtaining module is configured to process the target vertex coordinates through a vertex shader to obtain vertex data that can represent the display position of the target in the target space.

Optionally, the above device may further include: an ablation control parameter obtaining module, configured to obtain the ablation control parameter at least according to the first dynamic control parameter. In some embodiments, the ablation control parameter acquisition module may include:

An edge control parameter obtaining unit, configured to perform fusion processing on the first dynamic control parameter and the preset edge color gradient control parameter to obtain the edge control parameter;

The ablation control parameter obtaining unit is configured to perform a smooth step operation on the edge control parameter, the first dynamic control parameter and the first coordinate value to obtain the ablation control parameter in the dissolution direction.

It should be noted that the various modules, units, etc. in the above-mentioned device embodiments can all be stored in the memory as program modules, and the processor executes the above-mentioned program modules stored in the memory to realize corresponding functions. For the functions realized by each program module and its combination, as well as the technical effects achieved, reference may be made to the description of the corresponding parts of the above method embodiments, and details will not be repeated in this embodiment.

The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and the computer program is loaded and executed by a processor to implement the steps of the above-mentioned special effect processing method for a virtual object. The specific implementation process can be Refer to the descriptions of the corresponding parts of the foregoing embodiments, and details are not described in this embodiment.

The present application also proposes a computer program product or computer program, the computer program product or computer program comprising computer instructions stored in a computer-readable storage medium. The processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes various options in the aspect of the special effect processing method of the virtual object or the special effect processing device of the virtual object. For the methods and specific implementation processes provided in the implementation manners, reference may be made to the descriptions of the above-mentioned corresponding embodiments, and details are not repeated here.

Finally, it needs to be explained that each embodiment in this specification is described in a progressive or parallel manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other . As for the devices and computer equipment disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and for relevant details, please refer to the description of the method part.

Professionals can further realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software or a combination of the two. In order to clearly illustrate the possible For interchangeability, in the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are performed by hardware or software depends on the specific application and design preset conditions of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the core idea or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A special effect processing method for a virtual object, characterized in that the method comprises: Obtain an ablation special effect processing request for the virtual object model; the ablation special effect processing request includes at least one dissolution direction for the virtual object model; In response to the ablation special effect processing request, obtain a first coordinate value of each vertex pixel of the virtual object model; the first coordinate value refers to a coordinate value on a coordinate axis consistent with the dissolution direction; According to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis, the ablation edge value of the corresponding vertex pixel is obtained; the size of the ablation edge value can represent the ablation of the corresponding pixel on the object map degree, the ablation dynamic threshold can change with the increase of ablation time; Processing the ablation edge value, the first dynamic control parameter and the edge noise of the virtual object model to obtain the first special effect processing parameter corresponding to the dissolution direction; the first dynamic control parameter is used to control the corresponding The degree of ablation of vertex pixels in the direction of dissolution; performing special effect rendering on the first special effect processing parameters, the preset ablation threshold, the special effect background image, and the vertex data output by the vertex shader through the fragment shader, so that the virtual object displays an ablation special effect in the dissolution direction; The special effect background image is obtained through object mapping processing on the virtual object model. 2. The method according to claim 1, wherein the obtaining the ablation edge value of the corresponding vertex pixel according to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis comprises: Starting from the first vertex pixel in the dissolving direction, comparing the first coordinate value of each vertex pixel with the ablation dynamic threshold to obtain the ablation edge value of the corresponding vertex pixel at the current ablation moment; According to the preset rules, the ablation dynamic threshold corresponding to the next ablation moment is obtained; Comparing the first coordinate value of each vertex pixel with the ablation dynamic threshold corresponding to the next ablation moment, obtaining the ablation edge value of the corresponding vertex pixel at the next ablation moment, until the final Ablation of a vertex pixel. 3. The method according to claim 2, wherein the obtaining the dynamic threshold of ablation corresponding to the next ablation moment according to the preset rules comprises: Acquiring the first maximum coordinate value and the first minimum coordinate value of each vertex pixel of the object map of the virtual object model in the dissolution direction; Through interpolation, within the range from the first maximum coordinate value to the first minimum coordinate value, ablation dynamic thresholds corresponding to ablation moments are sequentially obtained. 4. The method according to any one of claims 1-3, characterized in that, the ablation edge value, the first dynamic control parameter and the edge noise for the virtual object model are processed to obtain the corresponding The first special effect processing parameters in the dissolution direction above, including: obtaining a first dynamic control parameter in the dissolving direction for the virtual object model; Obtain random noise, perform pixel chroma offset processing on the random noise, and obtain edge noise for the object map of the virtual object model; adding the first dynamic control parameter and the edge noise to obtain an edge control parameter; The edge control parameter and the ablation edge value are processed according to a step function, and the processing result is reversely processed to obtain a first special effect processing parameter corresponding to the dissolution direction. 5. The method according to claim 4, wherein the obtaining process of the vertex data output by the vertex shader comprises: Obtaining perturbation noise for vertex coordinates of each vertex pixel of the virtual object model; Using the disturbance noise to perform disturbance processing on the coordinate values of the vertex coordinates to obtain the disturbance vertex coordinates; Performing linear interpolation between the original vertex coordinates and the interference vertex coordinates according to the ablation control parameters to obtain target vertex coordinates; the ablation control parameters are obtained at least according to the first dynamic control parameters; The vertex coordinates of the target are processed by the vertex shader to obtain vertex data that can represent the display position of the target in the target space. 6. The method according to claim 5, wherein said obtaining ablation control parameters at least based on said first dynamic control parameters comprises: performing fusion processing on the first dynamic control parameter and the preset edge color gradient control parameter to obtain the edge control parameter; A smooth step operation is performed on the edge control parameter, the first dynamic control parameter, and the first coordinate value to obtain an ablation control parameter in the dissolution direction. 7. A special effect processing device for a virtual object, characterized in that the device comprises: An ablation special effect processing request obtaining module, configured to obtain an ablation special effect processing request for a virtual object model; the ablation special effect processing request includes at least one dissolution direction for the virtual object model; The first coordinate value obtaining module is configured to respond to the ablation special effect processing request and obtain the first coordinate value of each vertex pixel of the virtual object model; the first coordinate value refers to a coordinate axis consistent with the dissolution direction coordinate value on The ablation edge value obtaining module is used to obtain the ablation edge value of the corresponding vertex pixel according to the comparison result between the first coordinate value and the ablation dynamic threshold on the corresponding coordinate axis; the size of the ablation edge value can represent the The ablation degree of the corresponding pixel on the object map, the ablation dynamic threshold can change with the increase of ablation time; The first special effect processing parameter obtaining module is used to process the ablation edge value, the first dynamic control parameter and the edge noise for the virtual object model to obtain the first special effect processing parameter corresponding to the dissolution direction; The first dynamic control parameter is used to control the degree of ablation of the corresponding vertex pixel in the dissolution direction; The special effect rendering module is used to perform special effect rendering on the first special effect processing parameters, the preset ablation threshold, the special effect background image and the vertex data output by the vertex shader through the fragment shader, so that the virtual object dissolves in the The ablation effect is displayed in the direction; the background image of the special effect is obtained by processing the object texture of the virtual object model. 8. The device according to claim 7, wherein the ablation edge value obtaining module comprises: The first comparison unit is configured to compare the first coordinate value of each vertex pixel with the ablation dynamic threshold starting from the first vertex pixel in the dissolving direction, to obtain the ablation edge value of the corresponding vertex pixel at the current ablation moment; The ablation dynamic threshold obtaining unit is configured to obtain the ablation dynamic threshold corresponding to the next ablation moment according to preset rules; The second comparison unit is configured to compare the first coordinate value of each vertex pixel with the ablation dynamic threshold corresponding to the next ablation moment, to obtain the ablation edge value of the corresponding vertex pixel at the next ablation moment, until the completion The ablation of the last vertex pixel in the dissolve direction. 9. The device according to claim 8, wherein the ablation dynamic threshold obtaining unit comprises: A coordinate value acquisition unit, configured to acquire the first maximum coordinate value and the first minimum coordinate value of each vertex pixel in the dissolution direction of the object map of the virtual object model; The interpolation obtaining unit is configured to sequentially obtain the ablation dynamic threshold corresponding to the ablation moment within the range from the first maximum coordinate value to the first minimum coordinate value by interpolation. 10. A computer device, characterized in that the computer device comprises: communication module; A memory for storing the program of the method for processing special effects of virtual objects according to any one of claims 1-6; The processor is configured to load and execute the program stored in the memory, so as to implement the steps of the special effect processing method for virtual objects according to any one of claims 1-6.

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