CN114926579A - Rendering method and device of virtual three-dimensional model and electronic terminal - Google Patents

Abstract

The invention provides a rendering method, device and electronic terminal for a virtual three-dimensional model, which relate to the technical field of games and alleviate the technical problem of poor overall display effect of the virtual three-dimensional model in the prior art. The method includes: according to the shooting direction of the virtual camera, determining the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera; each of the relative angles corresponds to a specified degree of transparency, and the The larger the relative angle is, the larger the corresponding specified transparency degree is; the target specified transparency degree corresponding to the target relative angle is determined; the texture map is rendered according to the specified target transparency degree, and the rendering of the virtual three-dimensional model is obtained. result.

Description

Rendering method, device and electronic terminal of virtual three-dimensional model

technical field

The present application relates to the technical field of games, and in particular, to a method, device and electronic terminal for rendering a virtual three-dimensional model.

Background technique

At present, virtual three-dimensional models are often rendered in games to generate corresponding special effects, such as flame effects, smoke effects, and the like. Common production methods include bulletin boards, sequence frames, model inserts, and special effects particles.

However, for these existing rendering methods of virtual three-dimensional models, there is a technical problem that the overall display effect of the virtual three-dimensional models is poor, which affects the game experience of players.

SUMMARY OF THE INVENTION

The purpose of the present application is to provide a method, device and electronic terminal for rendering a virtual three-dimensional model, so as to alleviate the technical problem of poor overall display effect of the virtual three-dimensional model in the prior art.

In a first aspect, an embodiment of the present application provides a method for rendering a virtual three-dimensional model, including:

According to the shooting direction of the virtual camera, determine the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera; each relative angle corresponds to a specified degree of transparency, and the higher the relative angle The larger the specified transparency, the greater the corresponding degree of transparency;

determining the target specified transparency degree corresponding to the target relative angle;

The texture map is rendered according to the specified transparency degree of the target, and a rendering result of the virtual three-dimensional model is obtained.

In a possible implementation, when the relative angle is 0 degrees, the corresponding specified transparency degree is opaque, and when the relative angle is 90 degrees, the corresponding specified transparency degree is completely transparent.

In a possible implementation, when the relative angle is within a preset angle range, the corresponding specified transparency degree is completely transparent; wherein, the preset angle range is a preset first angle value above 90 degrees to 90 degrees The angle range between the preset second angle values below degrees.

In a possible implementation, the virtual scene where the virtual three-dimensional model and the virtual camera are located also includes a virtual character controlled by a terminal device, and the virtual character and the virtual camera are in a binding relationship; The rendering method of the virtual three-dimensional model further includes:

Determine the viewing angle direction for the virtual character according to the control instruction of the virtual character by the terminal device;

The shooting direction of the virtual camera is determined according to the viewing angle direction.

In a possible implementation, the virtual three-dimensional model includes a plurality of the texture maps; the rendering method for the virtual three-dimensional model further includes:

According to the shooting direction of the virtual camera, determining a plurality of target texture maps that at least partially overlap the front and rear of the virtual three-dimensional model with respect to the shooting direction;

The texture display parameters of the target texture map are adjusted to reduce ghosting generated when a plurality of the target texture maps rendered according to the specified transparency level of the target overlap with each other.

In a possible implementation, the texture display parameters include any one or more of the following:

Brightness, exposure, color contrast, color saturation, color difference, color number.

In a possible implementation, adjusting the texture display parameters of the target texture map to reduce ghosting generated when multiple target texture maps rendered according to the specified transparency level of the target overlap before and after, including:

determining that the first target texture map is mapped to the overlapping portion map in the second target texture map relative to the shooting direction;

Adjusting the texture display parameter of the overlapping part map to reduce the ghosting generated when the first target texture map and the second target texture map rendered according to the specified transparency level of the target overlap back and forth.

In a possible implementation, the determining, according to the shooting direction of the virtual camera, the relative target angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera, including:

converting the first coordinate system of the virtual camera in the virtual scene into a second coordinate system of the virtual camera in the model space of the virtual three-dimensional model;

The target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined by the second coordinate system.

In a possible implementation, the pivot point where the plurality of texture maps are interspersed in the model space of the virtual three-dimensional model is the origin of the second coordinate system;

The determining, by using the second coordinate system, the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera, includes:

Taking the origin in the second coordinate system as a center point, a target relative angle of the plane where each texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined.

In a possible implementation, the determining the target specified transparency degree corresponding to the relative angle of the target includes:

Converting the target relative angle into a target angle coefficient, and determining a target specified transparency coefficient corresponding to the target angle coefficient; each of the angle coefficients corresponds to a specified transparency coefficient;

Multiplying the target-specified transparency coefficient and a preset transparency parameter to obtain a numerical value of the target-specified transparency degree corresponding to the target relative angle.

In a possible implementation, the angle coefficient is a value between 0 and 1; wherein, 0 indicates that the angle coefficient is 0 when the virtual camera is vertically oriented to one side plane of the texture map, and 1 indicates that the angle coefficient is 0. When the virtual camera is vertically oriented to the other side plane of the texture map, the angle coefficient is 1;

When the relative angle is 0 degrees, the angle coefficient is 0 or 1; when the relative angle is 90 degrees, the angle coefficient is 0.5.

In a possible implementation, the specified transparency coefficient is a value between 0 and 1; wherein, 1 indicates that the specified transparency degree is opaque when the virtual camera is vertically oriented to any side plane of the texture map , 0 indicates that the specified degree of transparency when the virtual camera is parallel to the plane of the texture map is completely transparent.

In a possible implementation, the number of the several texture maps is two; the virtual three-dimensional model is formed by interspersing the two texture maps in the manner of vertical intersection.

In a second aspect, a device for rendering a virtual three-dimensional model is provided, including:

a first determination module, configured to determine, according to the shooting direction of the virtual camera, the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera; each of the relative angles corresponds to a specified transparent degree, the greater the relative angle, the greater the corresponding specified transparency degree;

a second determining module, configured to determine the target specified transparency degree corresponding to the relative angle of the target;

A rendering module, configured to render the texture map according to the specified transparency degree of the target, and obtain a rendering result of the virtual three-dimensional model.

In a third aspect, an embodiment of the present application further provides an electronic terminal, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the computer program Implement the steps of the method described in the first aspect above.

In a fourth aspect, embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are invoked and executed by a processor, the Computer-executable instructions cause the processor to perform the method of the first aspect above.

The embodiments of the present application have brought the following beneficial effects:

In a method, device, and electronic terminal for rendering a virtual three-dimensional model provided by the embodiments of the present application, first, according to the shooting direction of the virtual camera, the relative angle of the target of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined, wherein Each relative angle corresponds to a specified degree of transparency. The larger the relative angle is, the greater the specified degree of transparency is. Then, the specified degree of transparency of the target corresponding to the relative angle of the target is determined, and the texture map is rendered according to the specified degree of transparency of the target, and the virtual 3D model is obtained. render result. In this solution, the display transparency of the texture map changes according to the relative angle between the virtual 3D model itself and the virtual camera, that is, the greater the relative angle of the virtual camera facing the plane of the texture map, the greater the degree of transparency it renders, which makes the texture more transparent. When the side of the texture map faces the virtual camera, it is more transparent, and the texture map is the most opaque when the front side of the texture map faces the virtual camera, so that when looking at the texture map in the virtual 3D model from the side, there will be no traces of inserts, and it will not affect other angles. The texture map shows the effect, and the display effect from different angles transitions naturally. The virtual 3D model rendered by the texture map has the same display effect from all angles, thereby reducing the overall sense of inserting the virtual 3D model and improving the overall appearance of the virtual 3D model. The display effect alleviates the technical problem of poor overall display effect of the virtual three-dimensional model in the prior art.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. The drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of an application scenario provided by an embodiment of the present application;

FIG. 2 shows a schematic structural diagram of an electronic terminal provided by an embodiment of the present application;

3 is a schematic diagram of an electronic terminal according to an embodiment of the present application;

4 is a schematic flowchart of a method for rendering a virtual three-dimensional model according to an embodiment of the present application;

FIG. 5 is a schematic diagram of displaying a texture map display state according to an embodiment of the present application;

FIG. 6 is a schematic plan view showing a virtual camera and a texture map according to an embodiment of the present application;

FIG. 7 is a schematic plan view of displaying another virtual camera and a texture map according to an embodiment of the present application;

FIG. 8 is a schematic plan view of displaying another virtual camera and a texture map according to an embodiment of the present application;

FIG. 9 is a schematic plan view of displaying another virtual camera and a texture map according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of an apparatus for rendering a virtual three-dimensional model according to an embodiment of the present application.

Detailed ways

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

The terms "comprising" and "having" mentioned in the embodiments of the present application and any modifications thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also Include other steps or units inherent to these processes, methods, products or devices.

Flame effects are common effects in games. Common production methods include bulletin boards, sequence frames, model inserts, and special effects particles. In practical applications, it is often necessary to make a directional flame attached to the character, and it is necessary to keep the flame direction rotating together according to the character's rotation. Under such a premise, the bulletin board scheme is not feasible. The special effect bulletin board technology refers to the effect of rendering always facing the virtual camera. The flame model uses the bulletin board and always faces the camera. Once the flame is directional, if it is left or right, then when the character model rotates, the direction will be the same. An error occurred. The model insertion technology first draws the basic color of the model, and performs UV (UV coordinates in the UVW coordinate system) flow and UV distortion. UV flow or UV translation refers to moving along the horizontal (U) direction or the vertical (V) direction. UV coordinates of textures to create complex animation illusions. UV flow can create effects such as fire, flowing water, or smoke. UV Twist or UV Warp refers to UV coordinates that are twisted in either the horizontal (U) or vertical (V) direction to create the illusion of complex animation. UV warping can create effects such as fire, water, or smoke. However, if the model cross insert is used to make the flame, there are obvious traces on the side of the effect of the model insert.

Based on this, the embodiments of the present application provide a method, device, and electronic terminal for rendering a virtual three-dimensional model, through which the technical problem of poor overall display effect of the virtual three-dimensional model in the prior art can be alleviated.

In one of the embodiments of the present application, the method for rendering a virtual three-dimensional model may run on an electronic terminal such as a terminal device and a server device. The terminal device may be a local terminal device. When the method for rendering a virtual three-dimensional model runs on a server, the method can be implemented and executed based on a cloud interaction system, wherein the cloud interaction system includes a server and a client device.

In an optional implementation manner, various cloud applications, such as cloud games, can be run under the cloud interaction system. Taking cloud gaming as an example, cloud gaming refers to a game method based on cloud computing. In the running mode of the cloud game, the running main body of the game program and the main body of the game screen presentation are separated, the storage and operation of the rendering method of the virtual 3D model are completed on the cloud game server, and the function of the client device is used for data storage and operation. Reception, transmission, and presentation of game screens. For example, the client device can be a display device with a data transmission function close to the user side, such as a mobile terminal, a TV, a computer, a handheld computer, etc.; but a terminal that processes information The device is a cloud game server in the cloud. When playing the game, the player operates the client device to send operation instructions to the cloud game server, and the cloud game server runs the game according to the operation instructions, encodes and compresses the game screen and other data, and returns it to the client device through the network. Decode and output game screen.

In an optional implementation manner, the terminal device may be a local terminal device. Taking a game as an example, a local terminal device stores a game program and is used to present a game screen. The local terminal device is used to interact with the player through a graphical user interface, that is, the game program is conventionally downloaded, installed and executed through the electronic terminal device. The local terminal device may provide the graphical user interface to the player in various ways, for example, it may be rendered and displayed on the display screen of the terminal, or provided to the player through holographic projection. For example, the local terminal device may include a display screen for presenting a graphical user interface, the graphical user interface including game screens, and a processor for running the game, generating the graphical user interface, and controlling the graphical user interface display on the display.

In a possible implementation manner, an embodiment of the present application provides a method for rendering a virtual three-dimensional model, providing a graphical user interface through a first terminal device, where the first terminal device may be the aforementioned local terminal device, It can also be the client device in the aforementioned cloud interaction system.

For example, as shown in FIG. 1 , FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application. The application scenario may include a terminal device 102 and a server device 101, and the terminal device 102 may communicate with the server device 101 through a wired network or a wireless network. The electronic terminal in this embodiment may be the terminal device 102 or the server device 101 .

The electronic terminal in this embodiment is described by taking the terminal device 102 as an example. As shown in FIG. 2 , the terminal device 102 includes a memory 1021 and a processor 1022. The memory stores a computer program that can be executed on the processor. When the processor executes the computer program, the above-mentioned embodiments provide steps of the method.

2, the terminal device 102 further includes: a bus 1023 and a communication interface 1024, the processor 1022, the communication interface 1024 and the memory 1021 are connected through the bus 1023; the processor 1022 is used for executing executable modules stored in the memory 1021, such as computer programs .

The memory 1021 may include a high-speed random access memory (Random Access Memory, RAM for short), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 1024 (which may be wired or wireless), which may use the Internet, a wide area network, a local network, a metropolitan area network, and the like.

The bus 1023 may be an ISA bus, a PCI bus, an EISA bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one bidirectional arrow is used in FIG. 2, but it does not mean that there is only one bus or one type of bus.

The memory 1021 is used to store a program, and the processor 1022 executes the program after receiving the execution instruction, and the method executed by the device defined by the process disclosed in any of the foregoing embodiments of the present application can be applied to the processor 1022 , or implemented by the processor 1022.

The processor 1022 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the processor 1022 or an instruction in the form of software. The above-mentioned processor 1022 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; it may also be a digital signal processor (Digital Signal Processing, DSP for short) , Application Specific Integrated Circuit (ASIC for short), Field-Programmable Gate Array (FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 1021, and the processor 1022 reads the information in the memory 1021, and completes the steps of the above method in combination with its hardware.

Of course, the electronic terminal in this embodiment may also be a local computer device without network connection. As shown in FIG. 3, the computer device 103 includes: a processor 1031, a memory 1032, and a bus, the memory 1032 stores machine-readable instructions executable by the processor 1031, and when the computer device is running, the processor 1031 communicates with the memory 1032 through a bus, and the processor 1031 executes the machine-readable instructions to perform steps such as a method for rendering a virtual three-dimensional model.

Specifically, the above-mentioned memory 1032 and processor 1031 can be general-purpose memories and processors, which are not specifically limited here. When the processor 1031 runs the computer program stored in the memory 1032, it can execute the rendering method of the virtual three-dimensional model.

The embodiments of the present application will be further introduced below with reference to the accompanying drawings.

FIG. 4 is a schematic flowchart of a method for rendering a virtual three-dimensional model according to an embodiment of the present application. Among them, the method can be applied to electronic equipment. As shown in Figure 4, the method includes:

Step S410, according to the shooting direction of the virtual camera, determine the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera.

Wherein, each relative angle corresponds to a specified degree of transparency, and the larger the relative angle is, the greater the corresponding specified degree of transparency. It should be noted that the relative angle refers to the angle at which the shooting direction of the virtual camera faces the plane where the texture map is located.

Exemplarily, the virtual camera is vertically oriented to the plane of the texture map, and the content captured by the virtual camera is the content displayed in the graphical user interface. When the texture map in the virtual scene is rotated, the relative angle of the target of the virtual camera perpendicular to the plane of the texture map will change, and each relative angle corresponds to a specified degree of transparency. In short, when a texture map is rotated, its transparency will change with the angle of rotation.

In practical applications, the virtual camera can be bound to the virtual character in the game scene controlled by the terminal, that is, it can be the virtual camera from the first perspective of the virtual character, or the virtual camera from the third perspective, and the virtual camera shoots the virtual camera. The three-dimensional model (such as the three-dimensional model of the flame around the virtual character) has different degrees of specified transparency, such as the degree of flame transparency, corresponding to different shooting angles (ie, the above-mentioned relative angles) of the front, back, and sides.

Step S420, determining the target specified transparency degree corresponding to the target relative angle.

Exemplarily, as shown in FIG. 5 , each relative angle corresponds to a specified transparency degree, and the larger the relative angle is, the greater the corresponding specified transparency degree, and the corresponding target specified transparency degree can be determined by the determined target relative angle. Image 501 is a schematic diagram when the virtual camera is perpendicular to the plane of the texture map and the relative angle of the target is 0 degrees. When the relative angle of the target is 0 degrees, the specified transparency of the corresponding target is completely transparent. When the relative angle of the target gradually increases, the specified transparency of the target corresponding to the texture map also gradually increases. For example, when the relative angle of the target increases to the angle shown in image 502, the specified transparency of the target corresponding to the texture map increases significantly; when the relative angle of the target increases to the angle shown in image 503, the specified transparency of the target corresponding to the texture map increases becomes fully transparent.

Step S430: Render the texture map according to the specified transparency level of the target to obtain a rendering result of the virtual three-dimensional model.

Exemplarily, since the virtual three-dimensional model is formed by interspersing several texture maps, after the current relative angle of each texture map and the target of the virtual camera is determined, the specified transparency of the target corresponding to each texture map can be determined, and then the system can The texture map is rendered and generated according to the specified transparency of the target, and the rendering result of the complete virtual 3D model is obtained. For example, the virtual three-dimensional model may be a special effect fire in a game scene. During the setting process of the transparency of the special effect fire, the transparency of the special effect fire is determined by the shooting angle of the virtual camera.

In this embodiment of the present application, by improving the solution for making a flame model from an insert, the display transparency of the texture map changes according to the relative angle between the virtual 3D model itself and the virtual camera, that is, the relative angle of the virtual camera facing the plane of the texture map. The larger the value, the greater the degree of transparency corresponding to the rendering, which makes the texture map more transparent when the side faces the virtual camera, and the most opaque when the texture map faces the virtual camera, so that when the texture map in the virtual 3D model is viewed from the side There will be no more traces of inserts, and it will not affect the display effect of texture maps from other angles, and the display effects of different angles transition naturally. The virtual 3D model rendered by texture maps has the same display effect from all angles, and the overall display effect is consistent. The sense of inserting the virtual three-dimensional model is reduced, the overall display effect of the virtual three-dimensional model is improved, and the technical problem of poor overall display effect of the virtual three-dimensional model in the prior art is alleviated.

The above steps are described in detail below.

In some embodiments, the texture map can be displayed in a completely transparent form when the side of the texture map faces the virtual camera, and the transparency of the texture map can be displayed in an opaque form when the front of the texture map faces the virtual camera. Affects the normal display of the front, and improves the display effect of the virtual 3D model. As an example, when the relative angle is 0 degrees, the corresponding specified transparency degree is opaque, and when the relative angle is 90 degrees, the corresponding specified transparency degree is completely transparent.

Exemplarily, as shown in Figure 5, when the relative angle between the virtual camera and the texture map plane is 0 degrees, the display effect of the texture map is as shown in image 501, and the specified transparency level corresponding to the texture map is opaque; When the rotation relative to the virtual camera occurs and the relative angle increases as shown in image 502 (for example, 45 degrees), the specified degree of transparency corresponding to the texture map is translucent; when the texture map plane continues to rotate relative to the virtual camera, the relative angle increases When it reaches 90 degrees as shown in image 503, the specified transparency level corresponding to the texture map is fully transparent.

When the relative angle between the texture map plane and the virtual camera is 0 degrees, the corresponding specified transparency degree is opaque, and when the relative angle is 90 degrees, the corresponding specified transparency degree is completely transparent, so that the texture map can be transparent when the side faces the virtual camera. When the front side faces the camera, the transparency remains unchanged, so that the side of the rendered 3D model that faces the virtual camera is always opaque during the rotation process, and becomes transparent when the side faces the virtual camera, without displaying a vertical line. It can reduce the overall sense of inserting the 3D model and improve the display effect of the virtual 3D model.

In some embodiments, the relative angle range corresponding to the completely transparent display of the texture map can be appropriately expanded, that is, the transition between the changes between multiple texture maps can be completed in a more natural form within a certain range, thereby reducing the lateral The sense of inserting within a certain angle range nearby improves the overall display effect of the virtual 3D model. As an example, when the relative angle is within a preset angle range, the corresponding specified degree of transparency is completely transparent; wherein, the preset angle range is a preset first angle value above 90 degrees to a preset second angle value below 90 degrees angular range between.

In practical applications, the preset first angle value and the preset second angle value may be different values, or may be the same value, for example, the texture map can be completely transparently displayed in the range of 70 degrees to 105 degrees. The texture map can be displayed fully transparent in the range of 80 degrees to 100 degrees.

Exemplarily, when the relative angle between the texture map plane and the virtual camera is 0 degrees, the specified degree of transparency corresponding to the texture map is opaque; when the texture map rotates and the relative angle increases to 45 degrees, the corresponding degree of transparency of the texture map is opaque. The specified transparency degree can be semi-transparent; when the texture map continues to rotate and the relative angle increases to 90 degrees, the specified transparency degree corresponding to the texture map is fully transparent; when the texture map continues to rotate and the relative angle increases to 135 degrees, the texture map The specified transparency level corresponding to the map can also be semi-transparent. The rotation change of the texture map is a process from opaque to transparent and then to transparent, and the virtual 3D model is composed of multiple texture maps, so the angle corresponding to the complete transparency of the texture map can be appropriately expanded, so that the texture map rotates to a certain degree. The angle can be completely transparent, and it is not necessary to be completely transparent when facing the virtual camera from the side, which improves the overall display effect.

It should be noted that the above-mentioned numerical values such as 45 degrees, 80 degrees, and 100 degrees, and the corresponding transparency are only used for illustration in the embodiments of the present application, and can be specifically adjusted according to actual conditions in practical applications.

When the relative angle of the virtual camera is within the preset angle range of 90 degrees, the specified transparency level corresponding to the texture map is completely transparent, so that the virtual 3D model generated by rendering is further reduced and the overall display effect is improved.

In some embodiments, the above-mentioned virtual camera may be bound with a virtual character in a game scene controlled by the terminal. As an example, the virtual scene where the virtual three-dimensional model and the virtual camera are located also includes a virtual character controlled by the terminal device, and the virtual character and the virtual camera are in a binding relationship; the method may further include the following steps:

Step S440: Determine the viewing angle direction for the virtual character according to the control instruction of the terminal device on the virtual character.

Step S442, determining the shooting direction of the virtual camera according to the viewing angle direction.

In practical applications, the virtual camera may be a virtual camera from a first perspective of a virtual character, or a virtual camera from a third perspective, and the virtual camera captures the front and back of a virtual three-dimensional model (such as a three-dimensional flame model around the virtual character). Different shooting angles (that is, the above-mentioned relative angles) corresponding to different shooting angles, such as the flame transparency, have different degrees of transparency, so as to improve the game experience of the player controlling the virtual character.

In some embodiments, a certain transparency processing is performed on the texture map, which leads to a new technical problem, that is, the texture map located in the front and rear positions of the virtual 3D model relative to the shooting direction of the virtual camera is transparent, and the front and rear overlapping textures of the virtual 3D model are caused by transparency. Maps can cause visual ghosting, which can be faded or eliminated by adjusting the texture display parameters of the texture map in this case. As an example, the virtual three-dimensional model contains a plurality of texture maps; the method may further include the following steps:

Step S450, according to the shooting direction of the virtual camera, determine a plurality of target texture maps that at least partially overlap the front and rear of the virtual three-dimensional model with respect to the shooting direction.

Step S452 , adjusting the texture display parameters of the target texture map to reduce ghosting generated when multiple target texture maps rendered according to the specified transparency level of the target overlap before and after.

The texture display parameters may include any one or more of the following: brightness, exposure, color contrast, color saturation, color difference, and color number.

For the ghosting situation caused by the transparent processing of overlapping texture maps, by adjusting the texture display parameters such as brightness, color contrast, color difference, and color number of the texture map, the ghosting can be reduced or eliminated, thereby improving the display effect.

In some embodiments, the texture display parameter adjustment may also be performed only on the overlapping portion between the two texture maps, so as to save the adjustment cost. As an example, the above step S452 may specifically include the following steps:

Step S4522, determining that the first target texture map is mapped to the overlapping portion of the second target texture map relative to the shooting direction.

Step S4524: Adjust the texture display parameters of the overlapped part of the texture map to reduce the ghost generated when the first target texture map and the second target texture map rendered according to the specified transparency level of the target overlap back and forth.

By only adjusting the texture display parameters of the overlapping part of the two texture maps, it can not only eliminate or fade the overlapping between the first target texture map and the second target texture map rendered according to the specified transparency level of the target. It can also save adjustment costs.

In some embodiments, the first coordinate system of the virtual camera in the virtual scene can be converted into the second coordinate system of the virtual camera in the model space of the virtual three-dimensional model through the transformation of the coordinate system, so that the determination can be made more accurately. The relative angle between the virtual camera and the texture map plane is convenient to determine the corresponding rendering transparency and improve the overall display effect of the virtual 3D model. As an example, the foregoing step S410 may specifically include the following steps:

Step a), converting the first coordinate system of the virtual camera in the virtual scene into the second coordinate system of the virtual camera in the model space of the virtual three-dimensional model.

In step b), the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined by the second coordinate system.

Exemplarily, as shown in FIG. 6 , first, the virtual camera 601 may be transferred to a first coordinate system, which is the model space. Model space (model space), also known as object space (object space) or local space (localspace), refers to a coordinate system with the origin of the model as the origin. The model origin is the pivot point of the model. The first coordinate system is a coordinate system established with the model origin 603 of the virtual three-dimensional model 602 as the origin. Afterwards, the first coordinate system of the virtual camera in the virtual scene can be converted into a second coordinate system of the virtual camera in the model space of the virtual three-dimensional model. As shown in FIG. 7 , the second coordinate system can be understood as a plane coordinate system, that is, the relative angle of the target of the virtual camera perpendicular to the plane of the texture map is determined through the xy axis.

By converting the first coordinate system of the virtual camera in the virtual scene to the second coordinate system of the virtual camera in the model space of the virtual three-dimensional model, and then determining through the second coordinate system the target relative of the virtual camera perpendicular to the plane of the texture map Therefore, the relative angle between the virtual camera and the texture map plane can be determined more accurately, so as to facilitate the determination of the corresponding rendering transparency and improve the overall display effect of the virtual 3D model.

Based on the above step a) and step b), based on the patch method, the intersection of several texture maps can be used as the origin of the second coordinate system, and this is used as the center point to more accurately determine the virtual camera and the texture map. relative angle, thereby further improving the overall display effect of the virtual 3D model. As an example, the pivot point interspersed with several texture maps in the model space of the virtual three-dimensional model is the origin of the second coordinate system; the above step b) may specifically include the following steps:

Step c), taking the origin in the second coordinate system as the center point, to determine the target relative angle of the plane where each texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera.

Exemplarily, as shown in FIG. 7 , the virtual three-dimensional model is composed of several texture map inserts, and the embodiment of the present application is described with two texture map cross inserts. Taking the origin 701 in the second coordinate system as the center point, the target relative angle of the virtual camera perpendicular to the plane of each texture map can be determined. For example, the coordinates of the virtual camera in the model space are (1, 0, 0), and the corresponding point in the second coordinate system is the point 0.5 on the y-axis; if the coordinates are (1, -1, 0), the corresponding point The value is 0.75 in the lower right quadrant.

Since the virtual 3D model is formed by inserting several texture maps, the pivot point interspersed with several texture maps in the model space of the virtual 3D model can be used as the origin of the second coordinate system, and then the origin in the second coordinate system can be used as the origin of the second coordinate system. The center point, which more accurately determines the relative angle of the virtual camera perpendicular to the target of each texture map plane. It helps to more accurately determine the specified transparency of the texture map, and improves the overall display effect of the virtual 3D model.

In some embodiments, the degree of transparency can be determined by the angle coefficient, and the different transparency corresponding to the texture map at different relative angles can be obtained more simply and accurately by calculation. As an example, the above step S420 may specifically include the following steps:

Step d), convert the relative angle of the target into the target angle coefficient, and determine the target specified transparency coefficient corresponding to the target angle coefficient; each angle coefficient corresponds to a specified transparency coefficient.

Step e), multiplying the target specified transparency coefficient and the preset transparency parameter to obtain the numerical value of the target specified transparency degree corresponding to the target relative angle.

Exemplarily, the target relative angle may be converted into a target angle coefficient first, for example, 0 degree is converted into a corresponding target angle coefficient of 0, 45 degrees is converted into a corresponding target angle coefficient of 0.75, and 90 degrees is converted into a corresponding target angle. factor 1. Then, according to the target angle coefficient, the corresponding target specified transparency coefficient is determined. For example, the target angle coefficient of 0 corresponds to the target specified transparency coefficient of 0%; the target angle coefficient of 0.75 corresponds to the target specified transparency coefficient of 50%; the target angle coefficient of 0 corresponds to the target specified transparency coefficient Factor 100%. Then multiply the specified transparency coefficient of the target and the preset transparency parameter to obtain the value of the specified transparency degree of the target corresponding to the relative angle of the target, and realize that the transparency of the texture map plane is 0 when the relative angle of the virtual camera is 0 degrees, and the transparency gradually increases with the rotation. Scale up to 90 degrees for a completely transparent effect.

By first converting the relative angle of the target into the target angle coefficient, and determining the target specified transparency coefficient corresponding to the target angle coefficient, each angle coefficient corresponds to a specified transparency coefficient, and then multiplying the target specified transparency coefficient and the preset transparency parameter, Thereby, the value of the specified transparency degree of the target corresponding to the relative angle of the target can be obtained, that is, the different transparency corresponding to the texture map at different relative angles, and the overall display effect of the virtual three-dimensional model can be improved.

Based on the above steps c) and d), a simple value between 0, 1 and the values between 0 and 1 can be used as the selection value of the angle coefficient, so that the relative relationship between the texture map and the virtual camera can be expressed more concisely and clearly Angle, which is convenient for the system to determine the display transparency of the texture map based on the angle coefficient. As an example, the angle coefficient is a value between 0 and 1; where 0 means that the angle coefficient is 0 when the virtual camera is vertically oriented to one side of the texture map, and 1 means that the virtual camera is oriented vertically to the other side of the texture map The angle coefficient is 1 when the plane is flat; the angle coefficient is 0 or 1 when the relative angle is 0 degrees; the angle coefficient is 0.5 when the relative angle is 90 degrees.

Exemplarily, as shown in Figure 7, 0 may correspond to the front and back angles facing the texture map insert; 0.5 may correspond to the pure side angle of the texture map insert (that is, only one line of the texture map insert can be seen) , that is, the position where the front (or front and back) of the texture map insert is rotated 90 degrees to either side; 0.75 can correspond to 45 degrees (that is, the oblique side, which is rotated 45 degrees from the opposite sides); 1 can correspond to the texture The angle from which the tile inset is directly opposite.

By setting the angle coefficient to a value between 0 and 1, the relative angle between the texture map and the virtual camera can be expressed more concisely and clearly, which is convenient for the system to determine the display transparency of the texture map based on the angle coefficient, thereby improving the virtual 3D model. rendering effect.

Based on the above steps c) and d), the transparency coefficient of the texture map can be represented by simple 0 and 1. For example, 0 means the texture map is completely transparent, and 1 means the texture map is opaque, which is convenient for the system to determine the texture map based on the transparency coefficient. display transparency. As an example, specify the transparency coefficient as a value between 0 and 1; where 1 indicates that the specified degree of transparency is opaque when the virtual camera is vertically oriented to either side of the texture map, and 0 indicates that the virtual camera is oriented parallel to the texture map. The specified degree of transparency when flat is fully transparent.

Exemplarily, as shown in FIG. 8 , the values obtained in FIG. 7 may be converted into the range of 1-0-0-1. The two 1s in Figure 8 refer to the angle on the opposite side of the texture map insert and the angle on the front and back. These two angles correspond to the completely opaque display of the texture map; the two 0s refer to the pure side angle of the texture map insert (that is, only When you can see a line of the texture map insert), the texture map insert is completely transparent; there are transition angles, such as the transition transparency between 0-1 when the side is oblique.

In practical applications, as shown in Figure 9, the relative angle range corresponding to the fully transparent display of the texture map can be appropriately expanded, that is, the range corresponding to 0 can be appropriately expanded, so that multiple texture maps can be used within a certain range. The transition between changes is completed in a more natural form, thereby reducing the sense of inserting the virtual 3D model and improving the overall display effect of the virtual 3D model.

By setting the specified transparency coefficient to a value between 0 and 1; multiplying the target specified transparency coefficient between 0 and 1 and the preset transparency parameter, the value of the target specified transparency corresponding to the target relative angle is obtained, thereby improving The overall display effect of the virtual 3D model.

In some embodiments, the method can be applied to the virtual 3D model generated by the cross-slice method, and the display between two texture maps can realize a natural transition through this method, so that the virtual 3D model generated by rendering can be kept stable. Display status and display quality to improve the display effect of virtual 3D models. As an example, the number of several texture maps is two; a virtual three-dimensional model is formed by interspersing the two texture maps in a vertically intersecting manner.

Exemplarily, in practical application, the flame model can be first made into a cross insert. Specifically, a virtual three-dimensional model can be formed by vertically intersecting the texture maps of two flames, and then the basic color of the model can be drawn. uv flow and uv twist.

The virtual 3D model is produced in the form of cross inserts through two texture maps, which not only ensures the integrity of the model, but also saves resource space, and can achieve a higher display effect with less performance consumption.

FIG. 10 provides a schematic structural diagram of a device for rendering a virtual three-dimensional model. As shown in FIG. 10 , the rendering apparatus 1000 of the virtual three-dimensional model includes:

The first determination module 1001 is configured to determine, according to the shooting direction of the virtual camera, the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera; each relative angle corresponds to a specified degree of transparency, and the higher the relative angle The larger the specified transparency, the greater the corresponding degree of transparency.

The second determining module 1002 is configured to determine the target specified transparency degree corresponding to the relative angle of the target.

The rendering module 1003 is configured to render the texture map according to the specified transparency degree of the target, and obtain the rendering result of the virtual three-dimensional model.

In some embodiments, when the relative angle is 0 degrees, the corresponding specified transparency degree is opaque, and when the relative angle is 90 degrees, the corresponding specified transparency degree is completely transparent.

In some embodiments, when the relative angle is within a preset angle range, the corresponding specified degree of transparency is completely transparent; wherein the preset angle range is a preset first angle value above 90 degrees to a preset second angle value below 90 degrees The angular range between angular values.

In some embodiments, the virtual scene where the virtual three-dimensional model and the virtual camera are located also includes a virtual character controlled by the terminal device, and the virtual character and the virtual camera are in a binding relationship; the method for rendering the virtual three-dimensional model further includes:

Determine the viewing angle direction for the virtual character according to the control instruction of the terminal device on the virtual character;

Determine the shooting direction of the virtual camera according to the viewing angle direction.

In some embodiments, the virtual 3D model includes a plurality of texture maps; the method for rendering the virtual 3D model further includes:

According to the shooting direction of the virtual camera, determine a plurality of target texture maps that at least partially overlap the front and rear of the virtual three-dimensional model relative to the shooting direction;

Adjust the texture display parameters of the target texture map to reduce ghosting when multiple target texture maps rendered according to the specified transparency level of the target overlap.

In some embodiments, the texture display parameters include any one or more of the following:

Brightness, exposure, color contrast, color saturation, color difference, color number.

In some embodiments, the texture display parameters of the target texture map are adjusted to reduce ghosting generated when multiple target texture maps rendered according to the specified transparency level of the target overlap each other, including:

determining that the first target texture map is mapped to the overlapping portion map in the second target texture map relative to the shooting direction;

Adjusts the texture display parameters of the overlapping part of the map to reduce ghosting when the first and second target texture maps are rendered with the specified transparency level of the target.

In some embodiments, the first determining module 1001 is specifically configured to:

Converting the first coordinate system of the virtual camera in the virtual scene to the second coordinate system of the virtual camera in the model space of the virtual three-dimensional model;

The target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined by the second coordinate system.

In some embodiments, the pivot point interspersed with several texture maps in the model space of the virtual three-dimensional model is the origin of the second coordinate system; the first determination module 1001 is specifically used for:

Taking the origin in the second coordinate system as the center point, the relative target angle of the plane where each texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined.

In some embodiments, the second determining module 1002 is specifically configured to:

Convert the relative angle of the target into the target angle coefficient, and determine the target specified transparency coefficient corresponding to the target angle coefficient; each angle coefficient corresponds to a specified transparency coefficient;

Multiply the target-specified transparency coefficient and the preset transparency parameter to obtain the target-specified transparency value corresponding to the target relative angle.

In some embodiments, the angle coefficient is a value between 0 and 1; wherein, 0 indicates that the angle coefficient is 0 when the virtual camera is vertically facing one side of the texture map, and 1 indicates that the virtual camera is vertically facing the other side of the texture map. The angle coefficient of one side plane is 1;

When the relative angle is 0 degrees, the angle coefficient is 0 or 1; when the relative angle is 90 degrees, the angle coefficient is 0.5.

In some embodiments, the specified transparency coefficient is a value between 0 and 1; wherein, 1 indicates that the specified degree of transparency is opaque when the virtual camera is vertically oriented to either side plane of the texture map, and 0 indicates that the virtual camera is oriented parallel to the texture The specified level of transparency when the map's plane is fully transparent.

In some embodiments, the number of several texture maps is two; the two texture maps are interspersed to form a virtual three-dimensional model by means of vertical intersection.

The device for rendering a virtual 3D model provided by the embodiment of the present application has the same technical features as the method for rendering a virtual 3D model provided by the above-mentioned embodiment, so it can also solve the same technical problem and achieve the same technical effect.

An embodiment of the present application further provides an electronic device, including: a processor, a storage medium, and a bus, where the storage medium stores machine-readable instructions executable by the processor, when the electronic device runs as one of the embodiments In the rendering method of a virtual three-dimensional model, the processor and the storage medium communicate through a bus, the processor executes the machine-readable instruction, and the processor is the preamble of the method item to execute the following steps :

According to the shooting direction of the virtual camera, determine the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera; each relative angle corresponds to a specified degree of transparency, and the higher the relative angle The larger the specified transparency, the greater the corresponding degree of transparency;

determining the target specified transparency degree corresponding to the target relative angle;

The texture map is rendered according to the specified transparency degree of the target, and a rendering result of the virtual three-dimensional model is obtained.

In a feasible implementation, when the relative angle is 0 degrees, the corresponding specified transparency degree is opaque, and when the relative angle is 90 degrees, the corresponding specified transparency degree is completely transparent.

In a feasible implementation, when the relative angle is within a preset angle range, the corresponding specified degree of transparency is completely transparent; wherein, the preset angle range is a preset first angle value of 90 degrees or more to The angle range between the preset second angle values below 90 degrees.

In a feasible implementation, the virtual scene where the virtual three-dimensional model and the virtual camera are located further includes a virtual character controlled by a terminal device, and the virtual character and the virtual camera are in a binding relationship; The processor is further configured to: determine a viewing angle direction for the virtual character according to a control instruction of the terminal device on the virtual character;

The shooting direction of the virtual camera is determined according to the viewing angle direction.

In a feasible implementation, the virtual three-dimensional model includes a plurality of the texture maps; the processor is further configured to: determine, according to the shooting direction of the virtual camera, the virtual three-dimensional model relative to the shooting direction multiple target texture maps at least partially overlapping front and rear;

The texture display parameters of the target texture map are adjusted to reduce ghosting generated when a plurality of the target texture maps rendered according to the specified transparency level of the target overlap with each other.

In a feasible implementation, the texture display parameters include any one or more of the following:

Brightness, exposure, color contrast, color saturation, color difference, color number.

In a feasible implementation, the processor adjusts the texture display parameters of the target texture map so as to reduce the occurrence of overlapping of multiple target texture maps rendered according to the specified transparency level of the target. When ghosting, specifically for:

determining that the first target texture map is mapped to the overlapping portion map in the second target texture map relative to the shooting direction;

Adjusting the texture display parameter of the overlapping part map to reduce the ghosting generated when the first target texture map and the second target texture map rendered according to the specified transparency level of the target overlap back and forth.

In a feasible implementation, when the processor determines, according to the shooting direction of the virtual camera, the relative angle of the target of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera, specifically: In: converting the first coordinate system of the virtual camera in the virtual scene into a second coordinate system of the virtual camera in the model space of the virtual three-dimensional model;

The target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined by the second coordinate system.

In a feasible implementation, the pivot point where the plurality of texture maps are interspersed in the model space of the virtual three-dimensional model is the origin of the second coordinate system; When the system determines the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera, it is specifically used to: take the origin in the second coordinate system as the center point, determine the virtual The target relative angle of the plane where each texture map of the 3D model is located relative to the shooting direction of the virtual camera.

In a feasible embodiment, when the processor performs determining the target specified transparency degree corresponding to the target relative angle, the processor is specifically configured to: convert the target relative angle into a target angle coefficient, and determine the target angle The target corresponding to the coefficient specifies a transparency coefficient; each of the angle coefficients corresponds to a specified transparency coefficient;

Multiplying the target-specified transparency coefficient and a preset transparency parameter to obtain a numerical value of the target-specified transparency degree corresponding to the target relative angle.

In a feasible implementation, the angle coefficient is a value between 0 and 1; wherein, 0 indicates that the angle coefficient is 0, 1 when the virtual camera is vertically oriented to one side plane of the texture map Indicates that the angle coefficient is 1 when the virtual camera is vertically oriented to the other side plane of the texture map;

When the relative angle is 0 degrees, the angle coefficient is 0 or 1; when the relative angle is 90 degrees, the angle coefficient is 0.5.

In a feasible implementation, the specified transparency coefficient is a value between 0 and 1; wherein, 1 indicates that the specified transparency degree when the virtual camera is vertically oriented to any side plane of the texture map is Opaque, 0 indicates that the specified degree of transparency when the virtual camera is parallel to the plane of the texture map is completely transparent.

In a feasible implementation, the number of the several texture maps is two; the virtual three-dimensional model is formed by interspersing the two texture maps in a vertically intersecting manner.

In the above manner, the display transparency of the texture map changes according to the relative angle between the virtual 3D model itself and the virtual camera, that is, the greater the relative angle of the virtual camera facing the plane of the texture map, the greater the degree of transparency it renders, so that The texture map is more transparent when the side of the texture map faces the virtual camera, and the texture map is the most opaque when the front side of the texture map faces the virtual camera, so that there will be no insert marks when looking at the texture map in the virtual 3D model from the side, and it will not affect other angles. The virtual 3D model rendered by the texture map has the same display effect from all angles, thereby reducing the overall sense of inserting the virtual 3D model and improving the virtual 3D model. The overall display effect alleviates the technical problem that the overall display effect of the virtual three-dimensional model in the prior art is poor.

Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program is executed when a processor runs, and the processor performs the following steps:

According to the shooting direction of the virtual camera, determine the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera; each relative angle corresponds to a specified degree of transparency, and the higher the relative angle The larger the specified transparency, the greater the corresponding degree of transparency;

determining the target specified transparency degree corresponding to the target relative angle;

The texture map is rendered according to the specified transparency degree of the target, and a rendering result of the virtual three-dimensional model is obtained.

In a feasible implementation, when the relative angle is 0 degrees, the corresponding specified transparency degree is opaque, and when the relative angle is 90 degrees, the corresponding specified transparency degree is completely transparent.

In a feasible implementation, when the relative angle is within a preset angle range, the corresponding specified degree of transparency is completely transparent; wherein, the preset angle range is a preset first angle value of 90 degrees or more to The angle range between the preset second angle values below 90 degrees.

In a feasible implementation, the virtual scene where the virtual three-dimensional model and the virtual camera are located further includes a virtual character controlled by a terminal device, and the virtual character and the virtual camera are in a binding relationship; The processor is further configured to: determine a viewing angle direction for the virtual character according to a control instruction of the terminal device on the virtual character;

The shooting direction of the virtual camera is determined according to the viewing angle direction.

In a feasible implementation, the virtual three-dimensional model includes a plurality of the texture maps; the processor is further configured to: determine, according to the shooting direction of the virtual camera, the virtual three-dimensional model relative to the shooting direction multiple target texture maps at least partially overlapping front and rear;

The texture display parameters of the target texture map are adjusted to reduce ghosting generated when a plurality of the target texture maps rendered according to the specified transparency level of the target overlap with each other.

In a feasible implementation, the texture display parameters include any one or more of the following:

Brightness, exposure, color contrast, color saturation, color difference, color number.

In a feasible implementation, the processor adjusts the texture display parameters of the target texture map so as to reduce the occurrence of overlapping of multiple target texture maps rendered according to the specified transparency level of the target. When ghosting, specifically for:

determining that the first target texture map is mapped to the overlapping portion map in the second target texture map relative to the shooting direction;

Adjusting the texture display parameter of the overlapping part map to reduce the ghosting generated when the first target texture map and the second target texture map rendered according to the specified transparency level of the target overlap back and forth.

In a feasible implementation, when the processor determines, according to the shooting direction of the virtual camera, the relative angle of the target of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera, specifically: In: converting the first coordinate system of the virtual camera in the virtual scene into a second coordinate system of the virtual camera in the model space of the virtual three-dimensional model; determining the virtual three-dimensional The target relative angle of the plane where the texture map of the model is located relative to the shooting direction of the virtual camera.

In a feasible implementation, the pivot point where the plurality of texture maps are interspersed in the model space of the virtual three-dimensional model is the origin of the second coordinate system; When the system determines the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera, it is specifically used to: take the origin in the second coordinate system as the center point, determine the virtual The target relative angle of the plane where each texture map of the 3D model is located relative to the shooting direction of the virtual camera.

In a feasible embodiment, when the processor performs determining the target specified transparency degree corresponding to the target relative angle, the processor is specifically configured to: convert the target relative angle into a target angle coefficient, and determine the target angle The target specified transparency coefficient corresponding to the coefficient; each of the angle coefficients corresponds to a specified transparency coefficient; the target specified transparency coefficient and the preset transparency parameter are multiplied to obtain the numerical value of the target specified transparency degree corresponding to the target relative angle.

In a feasible implementation, the angle coefficient is a value between 0 and 1; wherein, 0 indicates that the angle coefficient is 0, 1 when the virtual camera is vertically oriented to one side plane of the texture map Indicates that the angle coefficient is 1 when the virtual camera is vertically facing the other side plane of the texture map; the angle coefficient is 0 or 1 when the relative angle is 0 degrees; the relative angle is 90 degrees When the angle coefficient is 0.5.

In a feasible implementation, the specified transparency coefficient is a value between 0 and 1; wherein, 1 indicates that the specified transparency degree when the virtual camera is vertically oriented to any side plane of the texture map is Opaque, 0 indicates that the specified degree of transparency when the virtual camera is parallel to the plane of the texture map is completely transparent.

In a feasible implementation, the number of the several texture maps is two; the virtual three-dimensional model is formed by interspersing the two texture maps in a vertically intersecting manner.

In the above manner, the display transparency of the texture map changes according to the relative angle between the virtual 3D model itself and the virtual camera, that is, the greater the relative angle of the virtual camera facing the plane of the texture map, the greater the degree of transparency it renders, so that The texture map is more transparent when the side of the texture map faces the virtual camera, and the texture map is the most opaque when the front side of the texture map faces the virtual camera, so that there will be no insert marks when looking at the texture map in the virtual 3D model from the side, and it will not affect other angles. The virtual 3D model rendered by the texture map has the same display effect from all angles, thereby reducing the overall sense of inserting the virtual 3D model and improving the virtual 3D model. The overall display effect alleviates the technical problem that the overall display effect of the virtual three-dimensional model in the prior art is poor.

The apparatus for rendering a virtual three-dimensional model provided by the embodiment of the present application may be specific hardware on the device or software or firmware installed on the device, or the like. The implementation principles and technical effects of the devices provided in the embodiments of the present application are the same as those in the foregoing method embodiments. For brief description, for the parts not mentioned in the device embodiments, reference may be made to the corresponding content in the foregoing method embodiments. Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the systems, devices and units described above can all refer to the corresponding processes in the above method embodiments, which will not be repeated here.

In the embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some communication interfaces, indirect coupling or communication connection of devices or units, which may be in electrical, mechanical or other forms.

As another example, the flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more functions for implementing the specified logical function(s) executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented in dedicated hardware-based systems that perform the specified functions or actions , or can be implemented in a combination of dedicated hardware and computer instructions.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in the embodiments provided in this application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method for rendering a virtual three-dimensional model described in various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes.

It should be noted that like numerals and letters refer to like items in the following figures, so that once an item is defined in one figure, it does not require further definition and explanation in subsequent figures, Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Finally, it should be noted that the above-mentioned embodiments are only specific implementations of the present application, and are used to illustrate the technical solutions of the present application, rather than limit them. The embodiments describe the application in detail, and those of ordinary skill in the art should understand that: any person skilled in the art can still modify the technical solutions described in the foregoing embodiments within the technical scope disclosed in the application. Or changes can be easily thought of, or equivalent replacements are made to some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. All should be covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (16)

1. a rendering method of virtual three-dimensional model, is characterized in that, comprises: According to the shooting direction of the virtual camera, determine the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera; each relative angle corresponds to a specified degree of transparency, and the higher the relative angle The larger the specified transparency, the greater the corresponding degree of transparency; determining the target specified transparency degree corresponding to the target relative angle; The texture map is rendered according to the specified transparency degree of the target, and a rendering result of the virtual three-dimensional model is obtained. 2 . The rendering method of a virtual three-dimensional model according to claim 1 , wherein the specified degree of transparency corresponding to the relative angle of 0 degrees is opaque, and the corresponding degree of transparency when the relative angle is 90 degrees. 3 . Specifies the degree of transparency as full transparency. 3 . The rendering method of a virtual three-dimensional model according to claim 1 , wherein when the relative angle is within a preset angle range, the corresponding specified transparency degree is complete transparency; wherein, the preset angle range It is an angle range between a preset first angle value above 90 degrees and a preset second angle value below 90 degrees. 4 . The rendering method of a virtual three-dimensional model according to claim 1 , wherein the virtual scene where the virtual three-dimensional model and the virtual camera are located further comprises a virtual character controlled by a terminal device, and the virtual character is controlled by a terminal device. 5 . A binding relationship with the virtual camera; the rendering method of the virtual three-dimensional model further includes: Determine the viewing angle direction for the virtual character according to the control instruction of the virtual character by the terminal device; The shooting direction of the virtual camera is determined according to the viewing angle direction. 5. The rendering method of a virtual three-dimensional model according to claim 1, wherein the virtual three-dimensional model comprises a plurality of the texture maps; the rendering method of the virtual three-dimensional model further comprises: According to the shooting direction of the virtual camera, determining a plurality of target texture maps that at least partially overlap the front and rear of the virtual three-dimensional model with respect to the shooting direction; The texture display parameters of the target texture map are adjusted to reduce ghosting generated when a plurality of the target texture maps rendered according to the specified transparency level of the target overlap with each other. 6. The rendering method of a virtual three-dimensional model according to claim 5, wherein the texture display parameters comprise any one or more of the following: Brightness, exposure, color contrast, color saturation, color difference, color number. 7 . The rendering method of a virtual three-dimensional model according to claim 5 , wherein the adjustment of the texture display parameters of the target texture map is performed to reduce the number of said objects rendered according to the specified transparency level of the target. 8 . Ghosting when the target texture map overlaps before and after, including: determining that the first target texture map is mapped to the overlapping portion map in the second target texture map relative to the shooting direction; Adjusting the texture display parameter of the overlapping part map to reduce the ghosting generated when the first target texture map and the second target texture map rendered according to the specified transparency level of the target overlap back and forth. 8 . The rendering method of a virtual three-dimensional model according to claim 1 , wherein, according to the shooting direction of the virtual camera, the plane where the texture map of the virtual three-dimensional model is located is determined relative to the shooting direction of the virtual camera. 9 . target relative angles, including: converting the first coordinate system of the virtual camera in the virtual scene into a second coordinate system of the virtual camera in the model space of the virtual three-dimensional model; The target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined by the second coordinate system. 9 . The rendering method of a virtual three-dimensional model according to claim 8 , wherein the pivot point interspersed with the several texture maps in the model space of the virtual three-dimensional model is the origin of the second coordinate system; 10 . The determining, by using the second coordinate system, the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera, includes: Taking the origin in the second coordinate system as a center point, a target relative angle of the plane where each texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera is determined. 10. The rendering method of a virtual three-dimensional model according to claim 1, wherein the determining the target specified transparency degree corresponding to the target relative angle comprises: Converting the target relative angle into a target angle coefficient, and determining a target specified transparency coefficient corresponding to the target angle coefficient; each of the angle coefficients corresponds to a specified transparency coefficient; Multiplying the target-specified transparency coefficient and a preset transparency parameter to obtain a numerical value of the target-specified transparency degree corresponding to the target relative angle. 11 . The rendering method of a virtual three-dimensional model according to claim 10 , wherein the angle coefficient is a value between 0 and 1; wherein, 0 means that the virtual camera is vertically oriented to one of the texture maps. 12 . The angle coefficient when the side plane is 0, and 1 means that the angle coefficient when the virtual camera is perpendicular to the other side plane of the texture map is 1; When the relative angle is 0 degrees, the angle coefficient is 0 or 1; when the relative angle is 90 degrees, the angle coefficient is 0.5. 12 . The rendering method for a virtual three-dimensional model according to claim 10 , wherein the specified transparency coefficient is a value between 0 and 1; wherein 1 means that the virtual camera is vertically oriented to the texture map. 13 . The specified transparency degree when either side is flat is opaque, and 0 indicates that the specified transparency degree when the virtual camera is parallel to the plane of the texture map is completely transparent. 13. The rendering method of a virtual three-dimensional model according to claim 1, wherein the number of the several texture maps is two; Model. 14. A device for rendering a virtual three-dimensional model, comprising: a first determination module, configured to determine, according to the shooting direction of the virtual camera, the target relative angle of the plane where the texture map of the virtual three-dimensional model is located relative to the shooting direction of the virtual camera; each of the relative angles corresponds to a specified transparent degree, the greater the relative angle, the greater the corresponding specified transparency degree; a second determining module, configured to determine the target specified transparency degree corresponding to the relative angle of the target; A rendering module, configured to render the texture map according to the specified transparency degree of the target, and obtain a rendering result of the virtual three-dimensional model. 15. An electronic terminal, comprising a memory and a processor, wherein a computer program that can be run on the processor is stored in the memory, wherein the processor implements the above claim 1 when executing the computer program Steps of the rendering method for a virtual three-dimensional model described in any one of to 13. 16. A computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions that, when invoked and executed by a processor, cause the computer-executable instructions to The processor executes the rendering method for a virtual three-dimensional model according to any one of claims 1 to 13.

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