CN113599818B - Vegetation rendering method, device, electronic device and readable storage medium - Google Patents

Abstract

The present disclosure provides a vegetation rendering method, device, electronic equipment, and storage medium. The vegetation rendering method includes: obtaining an original vegetation model corresponding to a vegetation object, the original vegetation model including a plurality of original polygonal patches; the plurality of original polygonal patches forming a coronal outline of the vegetation; respectively enlarging and rotating the multiple original polygonal patches to obtain a plurality of target polygonal patches; A virtual camera, and at least part of adjacent target polygonal patches intersect; rendering the target vegetation model to generate the vegetation object. In the embodiment of the present application, the rendering effect of the vegetation can be guaranteed while improving the rendering efficiency.

Description

Vegetation rendering method, device, electronic device and readable storage medium

technical field

The present disclosure relates to the technical field of graphics rendering, and in particular, to a vegetation rendering method, device, electronic equipment, and storage medium.

Background technique

Vegetation is an important element in the game scene. Rendering the vegetation in the game scene can simulate a more realistic natural environment, increase the player's sense of substitution in the game, and improve the player's game experience.

In the process of game scene development, due to the limitation of mobile phone performance, for the rendering of vegetation leaf clusters in the game scene, a small cluster or a branch of branches and leaves is generally modeled in the form of a patch, and several such patches are distributed on the trunk, and the map of the leaf cluster is pasted as the leaf cluster of the tree in the game.

However, although the above method reduces the loss of the system, the rendering effect is not good, such as thin vegetation and weak sense of volume. Therefore, how to take into account the loss of performance and the authenticity of vegetation rendering is an urgent problem to be solved.

Contents of the invention

Embodiments of the present disclosure at least provide a vegetation rendering method, device, electronic equipment, and storage medium.

In a first aspect, an embodiment of the present disclosure provides a vegetation rendering method, including:

Obtain an original vegetation model corresponding to the vegetation object; the original vegetation model includes a plurality of original polygonal patches, and the plurality of original polygonal patches form the coronal outline of the vegetation;

Enlarging and rotating the plurality of original polygonal patches respectively to obtain a plurality of target polygonal patches;

Obtaining a target vegetation model based on the plurality of target polygonal patches, each of the target polygonal patches of the target vegetation model is facing the virtual camera, and at least part of the adjacent target polygonal patches intersect;

Render the target vegetation model to generate the vegetation object.

In the embodiment of the present disclosure, by respectively enlarging and rotating the plurality of original polygonal patches, each obtained target polygonal patch faces the virtual camera, and at least some of the adjacent target polygonal patches intersect, thereby improving the utilization rate of model vertices, so that under the same calculation amount of vertices, the final vegetation effect will be denser, or under the same density of vegetation effects, the cost of vertices will be less, that is, the rendering effect of vegetation can be improved while the rendering efficiency is improved.

According to the first aspect, in a possible implementation manner, the original polygonal patch is a quadrangular patch.

In the embodiment of the present disclosure, since the original polygonal patch is a quadrangular patch, the effect of the rendered vegetation object is better, and the rendering effect is improved.

According to the first aspect, in a possible implementation manner, before enlarging and rotating the plurality of original polygonal patches, the method further includes:

performing coordinate transformation on the original UV coordinates of the plurality of original polygonal patches;

The amplifying and rotating processing of the plurality of original polygonal patches includes:

Enlarging and rotating the plurality of original polygonal patches after the coordinate conversion are performed respectively.

In the embodiment of the present disclosure, by performing coordinate conversion on the original UV coordinates of multiple original polygonal patches, zooming according to the center of the original polygonal patches is realized, so that the effect obtained after multiple target polygonal patches intersect is more uniform, and the rendering effect is further improved.

According to the first aspect, in a possible implementation manner, before rendering the target vegetation model and generating the vegetation object, the method further includes:

In the event that a trigger event for the adjustment of the virtual camera lens is detected, determining a target viewing angle orientation of the virtual camera lens;

According to the target viewing angle orientation, the plurality of target polygonal patches are respectively rotated so that each of the target polygonal patches faces the virtual camera.

In the embodiment of the present disclosure, after the viewing angle of the virtual camera lens is changed, multiple target polygonal patches are also rotated accordingly, so that the rendering effect of the presented vegetation objects does not change, which improves the player's visual experience.

According to the first aspect, in a possible implementation manner, the enlarging and rotating the multiple original polygonal patches to obtain multiple target polygonal patches includes:

Enlarging the original polygonal patch;

Based on the original orientation angle and adjustment value of the original polygonal patch, the enlarged original polygonal patch is rotated to obtain the target polygonal patch; the multiple target polygonal patches intersect each other.

In the embodiment of the present disclosure, based on the original orientation angle and adjustment value of the original polygonal patch, the enlarged original polygonal patch is rotated, so that although the rotated target polygonal patches are all facing the virtual camera, the angles of the orientation directions are not exactly the same, achieving the effect of disorderly interweaving of leaves and improving the authenticity of rendering.

According to the first aspect, in a possible implementation manner, before rendering the target vegetation model, the method further includes:

Obtain the wind attribute information in the target scene;

Based on the wind blowing attribute information, the original UV coordinates of the plurality of original polygonal patches are dynamically processed.

In the embodiment of the present disclosure, when there is wind blowing in the game scene, the vegetation object will display a corresponding wind blowing effect, and then the rendered vegetation object will be combined with natural weather to improve the fidelity of rendering.

According to the first aspect, in a possible implementation manner, the rendering the target vegetation model to generate the vegetation object includes:

In the process of rendering the target vegetation model, pixels are removed to generate the vegetation object.

In the embodiment of the present disclosure, during the rendering process, the pixels are eliminated, so that the generated vegetation objects have a hollow effect, thereby making the rendered vegetation objects more realistic.

In a second aspect, an embodiment of the present disclosure provides a vegetation rendering device, including:

An acquisition module, configured to acquire an original vegetation model corresponding to a vegetation object; the original vegetation model includes a plurality of original polygonal patches, and the plurality of original polygonal patches form the coronal outline of the vegetation;

A processing module, configured to respectively enlarge and rotate the plurality of original polygonal patches to obtain multiple target polygonal patches;

A determining module, configured to obtain a target vegetation model based on the plurality of target polygon patches, each of the target polygon patches of the target vegetation model faces the virtual camera, and at least some of the adjacent target polygon patches intersect;

A rendering module, configured to render the target vegetation model to generate the vegetation object.

According to the second aspect, in a possible implementation manner, the original polygonal patch is a quadrangular patch.

According to the second aspect, in a possible implementation manner, the processing module is further configured to:

performing coordinate transformation on the original UV coordinates of the plurality of original polygonal patches; and

Enlarging and rotating the plurality of original polygonal patches after the coordinate conversion are performed respectively.

According to the second aspect, in a possible implementation manner, the determining module is further configured to:

In the event that a trigger event for the adjustment of the virtual camera lens is detected, determining a target viewing angle orientation of the virtual camera lens;

The processing module is also used to:

According to the target viewing angle orientation, the plurality of target polygonal patches are respectively rotated so that each of the target polygonal patches faces the virtual camera.

According to the second aspect, in a possible implementation manner, the processing module is specifically configured to:

Enlarging the original polygonal patch;

Based on the original orientation angle and adjustment value of the original polygonal patch, the enlarged original polygonal patch is rotated to obtain the target polygonal patch; the multiple target polygonal patches intersect each other.

According to the second aspect, in a possible implementation manner, the obtaining module is further configured to:

Obtain the wind attribute information in the target scene;

The processing module is also used to:

Based on the wind blowing attribute information, the original UV coordinates of the plurality of original polygonal patches are dynamically processed.

According to the second aspect, in a possible implementation manner, the rendering module is specifically configured to:

In the process of rendering the target vegetation model, pixels are removed to generate the vegetation object.

In a third aspect, an embodiment of the present disclosure provides an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory through the bus. When the machine-readable instructions are executed by the processor, the vegetation rendering method described in the first aspect is executed.

In a fourth aspect, an embodiment of the present disclosure provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is run by a processor, the vegetation rendering method as described in the first aspect is executed.

In order to make the above-mentioned objects, features and advantages of the present disclosure more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. The accompanying drawings here are incorporated into the specification and constitute a part of the specification. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as limiting the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

FIG. 1 shows a schematic diagram of an execution body of a vegetation rendering method provided by an embodiment of the present disclosure;

FIG. 2 shows a flowchart of a vegetation rendering method provided by an embodiment of the present disclosure;

Fig. 3 shows a schematic diagram of an original vegetation model provided by an embodiment of the present disclosure;

Fig. 4 shows a schematic diagram of a target vegetation model provided by an embodiment of the present disclosure;

Fig. 5 shows a schematic diagram of a generated vegetation object provided by an embodiment of the present disclosure;

FIG. 6 shows a flow chart of a method for respectively enlarging and rotating multiple original polygonal patches provided by an embodiment of the present disclosure;

FIG. 7 shows a flow chart of another vegetation rendering method provided by an embodiment of the present disclosure;

FIG. 8 shows a flow chart of a method for dynamically processing an original polygonal patch provided by an embodiment of the present disclosure;

FIG. 9 shows a schematic structural diagram of a vegetation rendering device provided by an embodiment of the present disclosure;

Fig. 10 shows a schematic diagram of an electronic device provided by an embodiment of the present disclosure.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The components of the disclosed embodiments generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present disclosure.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

The term "and/or" in this article only describes an association relationship, which means that there may be three relationships. For example, A and/or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" herein means any combination of any one or more of at least two of the plurality, for example, including at least one of A, B, and C, and may mean including any one or more elements selected from the set formed by A, B, and C.

Vegetation is an important element in the game scene. Rendering the vegetation in the game scene can simulate a more realistic natural environment, increase the player's sense of substitution in the game, and improve the player's game experience.

With the development of the game industry, based on the flexibility of mobile terminals, more and more games are developed for mobile terminals. At present, when expressing extensive vegetation effects in the game (such as grass seas, flower seas, and forests, etc.), a large number of patch geometries with texture maps are used, and textures are assigned on the patch geometry to simulate vegetation effects.

In the development of the game scene, due to the limitations of the device performance of the game client on the calculation amount of polygon vertices, it is difficult to model and render each leaf in a polygonal manner for the leaf clusters of vegetation. Generally, a small cluster or a branch of branches and leaves is generally modeled in the form of a patch, and several such patches are distributed on the trunk, and the texture of the leaf cluster is pasted as the leaf cluster of the tree in the game.

However, after research, it is found that although the loss of the system is reduced, the rendering effect is not good, such as thin vegetation and weak sense of volume. Therefore, how to take into account the loss of performance and the authenticity of vegetation rendering is an urgent problem to be solved.

The present disclosure provides a vegetation rendering method, including: obtaining an original vegetation model corresponding to a vegetation object; the original vegetation model includes a plurality of original polygonal patches, and the plurality of original polygonal patches form the coronal outline of the vegetation; respectively zooming in and rotating the multiple original polygonal patches to obtain a plurality of target polygonal patches; obtaining a target vegetation model based on the multiple target polygonal patches, each of the target polygonal patches of the target vegetation model is facing a virtual camera, and at least partially adjacent to the target polygon The patches are intersected; the target vegetation model is rendered to generate the vegetation object.

In the embodiment of the present disclosure, by respectively enlarging and rotating the plurality of original polygonal patches, each obtained target polygonal patch faces the virtual camera, and at least part of the adjacent target polygonal patches intersect, and then the rendered vegetation object can be rendered with a real and full effect while reducing the number of polygonal patches, that is, the rendering effect of the vegetation can be improved while the rendering efficiency is improved.

Please refer to FIG. 1 , which is a schematic diagram of an execution body of a vegetation rendering method provided by an embodiment of the present disclosure. The execution body of the method is an electronic device 100 , where the electronic device 100 may include a terminal and a server. For example, the method can be applied to a terminal. The terminal can be a smart phone 10, a desktop computer 20, a notebook computer 30, etc. shown in FIG. 1, or a smart watch, a tablet computer, etc. not shown in FIG. The method can also be applied to the server 40 , or can be applied to an implementation environment composed of the terminal and the server 40 . The server 40 can be an independent physical server, or a server cluster or a distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud storage, big data and artificial intelligence platforms.

In some other implementation manners, the electronic device 100 may further include an AR (Augmented Reality, augmented reality) device, a VR (Virtual Reality, virtual reality) device, an MR (Mixed Reality, mixed reality) device, and the like. For example, the AR device may be a mobile phone or a tablet computer with an AR function, or may be AR glasses, which is not limited here.

It should be noted that, in some embodiments, the server 40 can communicate with the smart phone 10 , the desktop computer 20 and the notebook computer 30 respectively through the network 50 . Network 50 may include various connection types, such as wires, wireless communication links, or fiber optic cables, among others.

In addition, the vegetation rendering method may also be software running on a terminal or a server, such as an application program with a vegetation rendering function. In some possible implementation manners, the vegetation rendering method may be implemented by a processor invoking computer-readable instructions stored in a memory.

Referring to FIG. 2 , which is a flowchart of a vegetation rendering method provided by an embodiment of the present disclosure, the vegetation rendering method includes the following S101-S104:

S101. Acquire an original vegetation model corresponding to a vegetation object; the original vegetation model includes a plurality of original polygonal patches, and the multiple original polygonal patches form a coronal outline of the vegetation.

Please refer to FIG. 3 , which is a schematic diagram of an original vegetation model provided by an embodiment of the present disclosure. In the embodiment of the present invention, the 3D modeling software can be used to create, design and edit the vegetation objects required by the game scene, and then import the created original vegetation model into the game for rendering, generate the corresponding game scene, and display the game scene to the user. Specifically, the artist can create the original vegetation model of the vegetation object in the 3D modeling software, so that the game engine can obtain the original vegetation model from the 3D modeling software.

Exemplarily, the original vegetation model can be created based on 3D modeling software such as 3d Max, Maya, etc. Optionally, the created original vegetation model can include at least one virtual vegetation A, which can include but not limited to: virtual herb (grass), virtual wood (tree), virtual flower (flower), etc. In the embodiment of the present disclosure, the virtual vegetation A is described using crown trees as an example. Of course, the application does not limit the specific engine type and software type here, and can be flexibly selected according to actual application scenarios.

Exemplarily, in the process of modeling the original vegetation model, the multiple polygonal patches A1 need to be separated from each other. Specifically, the UV coordinates of each polygonal patch need to be disconnected, and the UV coordinates of each polygonal patch cover the UV space (0-1). In addition, the directions of the UV coordinates of the multiple polygonal patches change irregularly, that is, the UV directions of the multiple polygonal patches are disordered as much as possible.

In the embodiment of the present disclosure, in order to achieve a better rendering effect, the original polygonal patch A1 is a quadrangular patch. It can be understood that, in other embodiments, the original polygonal surface may also be a triangular surface or other polygonal surface, which is not limited here.

S102. Perform enlargement and rotation processing on the multiple original polygonal patches respectively to obtain multiple target polygonal patches.

Exemplarily, each original polygon facet can be enlarged and rotated through Shader (shader). Among them, Shader is used to achieve image rendering, and is used to replace the editable program of the fixed rendering pipeline. Shaders mainly include Vertex Shader and Pixel Shader. Among them, the vertex shader is mainly responsible for the calculation of the geometric relationship of the vertex, and the pixel shader is mainly responsible for the calculation of the source color.

In some implementations, when a plurality of original polygonal patches are respectively enlarged, the center of each original polygonal patch is used as a reference to enlarge the original polygonal patch, and the magnification ratio can be set in advance, that is, according to the preset magnification ratio, it can also be generated according to the attribute information generated by the player's control, which is not limited here. In addition, when performing rotation processing on a plurality of original polygonal patches, the rotation is performed based on the position of the virtual camera.

S103. Obtain a target vegetation model based on the plurality of target polygonal patches, where each target polygonal patch of the target vegetation model faces a virtual camera, and at least some adjacent target polygonal patches intersect.

Please refer to FIG. 4 , which is a schematic diagram of a target vegetation model provided by an embodiment of the present disclosure. It can be understood that the target polygonal patch B1 can be obtained after the plurality of original polygonal patches are respectively enlarged and rotated, and the target vegetation model B can be obtained based on the multiple target polygonal patches B1. Wherein, each target polygonal patch is all facing the virtual camera, which means that the angle between the lens orientation direction of the virtual camera and the normal of each target polygonal patch is less than a preset angle, and when the angle between the lens orientation direction of the virtual camera and the normal of the target polygonal patch is 0 degrees, the lens orientation direction of the virtual camera is perpendicular to the target polygonal patch.

It should be noted that, in the embodiments of the present disclosure, the lens orientation of the virtual camera refers to the direction of the centerline of the field of view of the virtual camera, and the preset angle can be 30 degrees, 40 degrees or other angles, which can be determined according to specific requirements, and are not limited here.

In some specific implementation manners, the original UV coordinates of the plurality of polygonal patches can be obtained first, and then matrix transformation processing is performed on the original UV coordinates to obtain vertex offset information, and then in the model local space, the vertex offset information is added to the original vertex coordinate information of the original vegetation model to obtain the target vegetation model.

Specifically, the process of obtaining the vertex offset information may include the following (1)-(4):

(1) converting the original UV coordinates (two-dimensional data) into three-dimensional data to obtain the first target data;

(2) using the first target data as coordinate information in world space, and converting the first target data to observation space to obtain second target data;

(3) using the second target data as the coordinate information in the local space, and converting the second target data into the world space to obtain the third target data;

(4) Perform normalization processing on the third target data to obtain the vertex offset information.

S104. Render the target vegetation model to generate the vegetation object.

Please refer to FIG. 5 . FIG. 5 is a schematic diagram of a generated vegetation object provided by an embodiment of the present disclosure. As shown in FIG. 3 , after the target vegetation model is obtained, the target vegetation model can be rendered to generate a vegetation object C.

In some implementations, during the process of rendering the target vegetation model, pixels can be removed. For example, pixels can be removed according to Alpha information when rendering textures, so that the rendered vegetation object C has a hollow effect, which further improves the authenticity of the vegetation rendering effect.

In the embodiment of the present disclosure, by respectively enlarging and rotating the plurality of original polygonal patches, each obtained target polygonal patch faces the virtual camera, and at least some of the adjacent target polygonal patches intersect, thereby improving the utilization rate of model vertices, so that under the same calculation amount of vertices, the final vegetation effect will be denser, or under the same density of vegetation effects, the cost of vertices will be less, that is, the rendering effect of vegetation can be improved while the rendering efficiency is improved.

The above step S102 will be described in detail below in conjunction with specific embodiments.

In some implementations, as shown in FIG. 6, for the above step S102, when the multiple original polygonal patches are respectively enlarged and rotated to obtain multiple target polygonal patches, the following steps S1021-S1022 may be included:

S1021. Enlarge the original polygonal patch.

S1022. Based on the original orientation angle and adjustment value of the original polygonal patch, perform rotation processing on the enlarged original polygonal patch to obtain the target polygonal patch; the multiple target polygonal patches intersect each other.

Exemplarily, the original polygonal patch can be enlarged first, and then based on the original orientation angle and adjustment value of the original polygonal patch, the enlarged original polygonal patch can be rotated to obtain the target polygonal patch, and then the multiple target polygonal patches can intersect with each other.

Wherein, the original orientation angle of the original polygonal patch refers to the angle between the normal of the original polygonal patch and the orientation of the virtual camera lens. The adjustment value can also be called the noise value, which can be a random number generated randomly, or a random number generated based on the original orientation angle of the original polygonal patch. In this way, although the rotated target polygonal patches are all facing the virtual camera, the angles of the orientation directions are not exactly the same, achieving the effect of disorderly interweaving of leaves and improving the authenticity of rendering.

Please refer to FIG. 7 . FIG. 7 is a flow chart of another vegetation rendering method provided by an embodiment of the present disclosure. The vegetation rendering method includes the following S201-S207:

S201. Acquire an original vegetation model corresponding to a vegetation object; the original vegetation model includes a plurality of original polygonal patches, and the multiple original polygonal patches form a coronal outline of the vegetation.

This step is similar to the aforementioned step S101, and will not be repeated here.

S202. Perform coordinate transformation on the original UV coordinates of the multiple original polygonal patches.

Exemplarily, since the original UV coordinate range is (0, 1), in order to achieve scaling according to the center of the original polygonal patch, so that the effect obtained after multiple target polygonal patches intersect is more uniform, it is necessary to perform coordinate conversion on the original UV coordinates of the multiple original polygonal patches, and convert the original UV coordinate range from (0, 1) to (-1, 1), so that the UV coordinate at the center of the polygonal patch is (0, 0).

S203, respectively performing enlargement and rotation processing on the plurality of original polygonal patches after the coordinate transformation.

This step is similar to the aforementioned step S102, and will not be repeated here.

S204. Obtain a target vegetation model based on the plurality of target polygonal patches, where each target polygonal patch of the target vegetation model faces a virtual camera, and at least part of adjacent target polygonal patches intersect.

This step is similar to the aforementioned step S103, and will not be repeated here.

S205. If a trigger event for adjusting the virtual camera lens is detected, determine a target viewing angle orientation of the virtual camera lens.

It can be understood that in the game scene, the angle of view of the virtual camera can be changed according to the player's control, and when the angle of view of the virtual camera changes, the displayed content is also different. Therefore, when a trigger event for adjusting the virtual camera lens is detected, it is necessary to determine the target viewing angle orientation of the virtual camera lens.

S206. Perform rotation processing on the plurality of target polygonal patches according to the target viewing angle orientation, so that each of the target polygonal patches faces the virtual camera.

When the viewing angle of the virtual camera changes, if the orientations of the multiple target polygonal patches are not adjusted, the rendered vegetation objects will be distorted. Therefore, it is necessary to rotate the multiple target polygonal patches according to the target viewing angle, so that each of the target polygonal patches faces the virtual camera, so as to ensure that the rendering effect of the presented vegetation objects does not change after the viewing angle of the camera lens changes. This improves the player's visual experience.

S207. Render the target vegetation model to generate the vegetation object.

This step is similar to the aforementioned step S104, and will not be repeated here.

It can be understood that there will be a wind blowing effect in the game scene, and if the vegetation object does not display the wind blowing effect in the presence of wind blowing, it will affect the player's experience. Therefore, in some implementations, in order to improve the player's real experience, as shown in FIG. 8, before rendering the target vegetation model, the vegetation rendering method further includes the following S208-S209:

S208. Acquire wind attribute information in the target scene.

S209. Based on the wind blowing attribute information, dynamically process the UV coordinates of the plurality of original polygonal patches.

In the embodiment of the present disclosure, the UV coordinates of multiple original polygonal patches are dynamically processed first, and then the aforementioned enlargement and rotation processing is performed. It can be understood that in other implementations, the original polygonal patch can also be enlarged and rotated first, and then dynamic processing is performed, that is, as long as the effect of wind blowing can be finally realized, the specific processing process is not limited here.

Wherein, the wind attribute information includes but not limited to wind size information, wind direction information, and the like.

In some implementations, the process of dynamically processing the original UV coordinates of the multiple original polygonal patches may specifically include the following (a)-(d):

(a) performing rotation processing on the original UV coordinates to obtain rotated UV coordinates;

(b) converting the original vegetation model from the local space to the world space to obtain the target vertex coordinates of the vertices of the original vegetation model in the world space;

(c) generating noise textures based on time-varying engine built-in functions and the target vertex coordinates;

(d) Fusing the original UV coordinates and the rotated UV coordinates with the noise texture (for example, lerp mixing) to obtain target UV coordinates.

Wherein, in this embodiment, performing rotation processing on the original UV coordinates refers to randomly rotating the original UV coordinates of each polygonal patch at different angles such as 90 degrees, 180 degrees, and 270 degrees. After obtaining the target UV coordinates, the target UV coordinates can be followed by corresponding steps, such as coordinate conversion, zooming in, and rotating.

Those skilled in the art can understand that in the above method of specific implementation, the writing order of each step does not imply a strict execution order and constitutes any limitation on the implementation process, and the specific execution order of each step should be determined by its function and possible internal logic.

Based on the same technical idea, the embodiment of the present disclosure also provides a vegetation rendering device corresponding to the vegetation rendering method. Since the problem-solving principle of the device in the embodiment of the present disclosure is similar to the above-mentioned vegetation rendering method in the embodiment of the present disclosure, the implementation of the device can refer to the implementation of the method, and the repetition will not be repeated.

Referring to FIG. 9 , which is a schematic diagram of a vegetation rendering device 500 provided by an embodiment of the present disclosure, the device includes:

An acquisition module 501, configured to acquire an original vegetation model corresponding to a vegetation object; the original vegetation model includes a plurality of original polygonal patches, and the plurality of original polygonal patches form the coronal contour of the vegetation;

A processing module 502, configured to enlarge and rotate the plurality of original polygonal patches to obtain multiple target polygonal patches;

A determining module 503, configured to obtain a target vegetation model based on the plurality of target polygonal patches, each of the target polygonal patches of the target vegetation model faces the virtual camera, and at least part of the adjacent target polygonal patches intersect;

The rendering module 504 is configured to render the target vegetation model to generate the vegetation object.

In a possible implementation manner, the original polygonal patch is a quadrangular patch.

In a possible implementation manner, the processing module 502 is further configured to:

performing coordinate transformation on the original UV coordinates of the plurality of original polygonal patches; and

Enlarging and rotating the plurality of original polygonal patches after the coordinate conversion are performed respectively.

In a possible implementation manner, the determining module 503 is also configured to:

In the event that a trigger event for the adjustment of the virtual camera lens is detected, determining a target viewing angle orientation of the virtual camera lens;

The processing module 502 is also used for:

According to the target viewing angle orientation, the plurality of target polygonal patches are respectively rotated so that each of the target polygonal patches faces the virtual camera.

In a possible implementation manner, the processing module 502 is specifically configured to:

Enlarging the original polygonal patch;

Based on the original orientation angle and adjustment value of the original polygonal patch, the enlarged original polygonal patch is rotated to obtain the target polygonal patch; the multiple target polygonal patches intersect each other.

In a possible implementation manner, the acquiring module 501 is also configured to:

Obtain the wind attribute information in the target scene;

The processing module 502 is also used for:

Based on the wind blowing attribute information, the original UV coordinates of the plurality of original polygonal patches are dynamically processed.

In a possible implementation manner, the rendering module 504 is specifically configured to:

In the process of rendering the target vegetation model, pixels are removed to generate the vegetation object.

For the description of the processing flow of each module in the device and the interaction flow between the modules, reference may be made to the relevant description in the above method embodiment, and details will not be described here.

Based on the same technical idea, an embodiment of the present disclosure also provides an electronic device. Referring to FIG. 10 , it is a schematic structural diagram of an electronic device 700 provided by an embodiment of the present disclosure, including a processor 701 , a memory 702 , and a bus 703 . Among them, the memory 702 is used to store execution instructions, including a memory 7021 and an external memory 7022; the memory 7021 here is also called an internal memory, and is used to temporarily store calculation data in the processor 701 and exchange data with an external memory 7022 such as a hard disk. The processor 701 exchanges data with the external memory 7022 through the memory 7021.

In the embodiment of the present application, the memory 702 is specifically used to store the application program code for executing the solution of the present application, and the execution is controlled by the processor 701 . That is, when the electronic device 700 is running, the processor 701 communicates with the memory 702 through the bus 703, so that the processor 701 executes the application program code stored in the memory 702, and then executes the method described in any of the foregoing embodiments.

Wherein, the memory 702 can be, but not limited to, a random access memory (Random Access Memory, RAM), a read only memory (Read Only Memory, ROM), a programmable read only memory (Programmable Read-Only Memory, PROM), an erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM), an electric erasable programmable read-only memory (Electric Erasable Programmable Read-Only Memory) Mory, EEPROM), etc.

The processor 701 may be an integrated circuit chip with signal processing capability. The above-mentioned processor can be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

It can be understood that, the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 700 . In other embodiments of the present application, the electronic device 700 may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

An embodiment of the present disclosure further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is run by a processor, the steps of the vegetation rendering method in the foregoing method embodiments are executed. Wherein, the storage medium may be a volatile or non-volatile computer-readable storage medium.

The embodiment of the present disclosure also provides a computer program product, the computer program product carries a program code, and the instructions included in the program code can be used to execute the steps of the vegetation rendering method in the above method embodiment. For details, please refer to the above method embodiment, which will not be repeated here.

Wherein, the above-mentioned computer program product may be specifically implemented by means of hardware, software or a combination thereof. In an optional embodiment, the computer program product is embodied as a computer storage medium. In another optional embodiment, the computer program product is embodied as a software product, such as a software development kit (Software Development Kit, SDK) and the like.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described system and device can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here. In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. The device 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 integrated into another system, or some features may be ignored or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

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

In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such an understanding, the technical solution of the present disclosure may be embodied in the form of a software product in essence or the part that contributes to the prior art or a part of the technical solution. The computer software product is stored in a storage medium and includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present disclosure. 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.

Finally, it should be noted that the above-mentioned embodiments are only specific implementations of the present disclosure, which are used to illustrate the technical solutions of the present disclosure, rather than to limit them. The protection scope of the present disclosure is not limited thereto. Although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person familiar with the art within the technical scope of the present disclosure can still modify the technical solutions described in the foregoing embodiments or easily think of changes, or perform equivalent replacements for some of the technical features; and these modifications, changes or replacements, The essence of the corresponding technical solutions does not deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be defined by the protection scope of the claims.

Claims (10)

1. A vegetation rendering method, comprising:

acquiring an original vegetation model corresponding to a vegetation object; the original vegetation model comprises a plurality of original polygonal patches that form a coronal outline of the vegetation;

amplifying and rotating the plurality of original polygonal patches respectively to obtain a plurality of target polygonal patches;

obtaining a target vegetation model based on the plurality of target polygonal patches, wherein each target polygonal patch of the target vegetation model faces towards a virtual camera and at least part of adjacent target polygonal patches are intersected;

rendering the target vegetation model to generate the vegetation object.

2. The method of claim 1, wherein the original polygonal patch is a quadrilateral patch.

3. The method of claim 1, wherein prior to the amplifying and rotating the plurality of raw polygonal patches, respectively, the method further comprises:

performing coordinate transformation on the original UV coordinates of the plurality of original polygonal patches;

the amplifying and rotating the plurality of original polygonal patches respectively includes:

And respectively amplifying and rotating the plurality of original polygonal patches after coordinate conversion.

4. The method of any one of claims 1-3, wherein prior to rendering the target vegetation model to generate the vegetation object, the method further comprises:

determining a target view angle orientation of the virtual camera lens upon detecting a trigger event for the virtual camera lens adjustment;

and respectively carrying out rotation processing on the plurality of target polygonal patches according to the target visual angle direction, so that each target polygonal patch faces the virtual camera.

5. The method of claim 1, wherein the amplifying and rotating the plurality of original polygon facets to obtain a plurality of target polygon facets, respectively, comprises:

amplifying the original polygonal surface patch;

performing rotation processing on the amplified original polygonal surface piece based on the original orientation angle and the adjustment value of the original polygonal surface piece to obtain the target polygonal surface piece; the plurality of target polygon patches are intersected with each other.

6. The method of claim 1, wherein prior to rendering the target vegetation model, the method further comprises:

Obtaining wind attribute information in a target scene;

and dynamically processing the original UV coordinates of the plurality of original polygonal patches based on the wind attribute information.

7. The method of claim 1, wherein the rendering the target vegetation model to generate the vegetation object comprises:

and in the process of rendering the target vegetation model, eliminating pixels to generate the vegetation object.

8. A vegetation rendering device, comprising:

the acquisition module is used for acquiring an original vegetation model corresponding to the vegetation object; the original vegetation model comprises a plurality of original polygonal patches that form a coronal outline of the vegetation;

the processing module is used for respectively amplifying and rotating the plurality of original polygonal patches to obtain a plurality of target polygonal patches;

the determining module is used for obtaining a target vegetation model based on the plurality of target polygonal patches, wherein each target polygonal patch of the target vegetation model faces the virtual camera and at least part of adjacent target polygonal patches are intersected;

The rendering module is used for rendering the target vegetation model and generating the vegetation object.

9. An electronic device, comprising: a processor, a memory and a bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory in communication via the bus when the electronic device is running, the machine-readable instructions when executed by the processor performing the vegetation rendering method of any of claims 1-7.

10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, performs the vegetation rendering method of any of claims 1-7.