CN115761105A - Illumination rendering method, device, electronic device and storage medium - Google Patents

Abstract

The present disclosure provides a lighting rendering method, device, electronic equipment, and storage medium. The lighting rendering method includes: acquiring model initial lighting data corresponding to a target object model, the model initial lighting data being generated by pre-configuration by the user; acquiring the The current position information of the target object model in the target scene and the current lens information of the virtual camera, and based on the current position information and the current lens information, process the initial lighting data of the model to obtain the model target lighting data; The model target lighting data and the model initial lighting data generate first lighting information corresponding to the target object model; acquire second lighting information of the scene light source of the target scene, based on the first lighting information and the obtained Perform lighting rendering on the target object model based on the second lighting information. In the embodiment of the present application, the rendering effect can be improved while ensuring the smoothness of the rendering image.

Description

Illumination rendering method, device, electronic device and storage medium

technical field

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

Background technique

With the continuous development of computer technology, 3D games have become the mainstream of the market. While people experience games, they also put forward higher requirements for the visual effects of games. In related technologies, in order to improve the visual effect of each character in the game, in the rendering process, in addition to using the scene light source, a separate light source is also set for the model of each character.

However, although this method can improve the rendering effect of each character model, since each character model corresponds to a separate light, when different character models are close together, the lights between the character models will affect each other , thereby affecting the overall visual display effect. In addition, due to the increase in the number of lights, the calculation pressure of the rendering pipeline will be increased during the rendering process, which will affect the fluency of the game.

Contents of the invention

Embodiments of the present disclosure at least provide a lighting rendering method, device, electronic device, and storage medium, which can improve the rendering effect of cartoon style rendering.

An embodiment of the present disclosure provides a lighting rendering method, including:

Obtain model initial lighting data corresponding to the target object model, where the model initial lighting data is generated by user pre-configuration;

Obtain the current position information of the target object model in the target scene and the current lens information of the virtual camera, and process the initial lighting data of the model based on the current position information and the current lens information to obtain model target lighting data ;

generating first lighting information corresponding to the target object model based on the model target lighting data and the model initial lighting data;

Acquiring second lighting information of a scene light source of the target scene, and performing lighting rendering on the target object model based on the first lighting information and the second lighting information.

In the embodiment of the present disclosure, since the first lighting information corresponding to the target object model is generated by the initial lighting data of the model pre-configured by the user, it is not necessary to set a separate light source for the target object model to achieve a separate lighting effect on the target object model , and then different models will not affect each other when they are close together, so that the rendering effect of the model can be improved. In addition, since the initial lighting data of each model can be shared among the models, in the process of generating the first lighting information of each model, part of the data only needs to be calculated once, which can reduce the calculation pressure of the rendering pipeline, that is, It can improve the rendering effect while ensuring the smoothness of the rendered image.

In a possible implementation manner, the initial illumination data of the model includes initial illumination direction data and initial illumination position data; the processing of the initial illumination data of the model based on the current position information and the current lens information, Get model target lighting data, including:

Based on the current lens orientation information of the virtual camera, the initial illumination direction data is processed to obtain target illumination direction data;

Determine target lighting position data according to the target lighting direction data, current position information of the target object model, and the initial lighting position data;

Obtain the model target illumination data based on the target illumination direction data and the target illumination position data.

In the embodiment of the present disclosure, the initial illumination direction data is processed through the current lens orientation information of the virtual camera, and the initial illumination position data is adjusted through the current position information of the target object model, so that the adjusted illumination direction is relative to The adjusted lighting position of the virtual camera is relative to the target object model, not relative to the scene, and since the rendering shader of each model only receives the model's initial lighting data and model target lighting data corresponding to the model itself, and then The first lighting information corresponding to the model itself is generated without involving other models, so it can be ensured that the lighting between the models will not affect each other when different models are close to each other.

In a possible implementation manner, the initial illumination direction data is represented by a unit vector direction relative to the virtual camera, and the initial illumination direction data is processed based on the current lens orientation information of the virtual camera , to get the target light direction data, including:

Based on the current lens orientation information of the virtual camera, determine the current direction information of the unit vector direction in camera space;

According to the world space transformation matrix of the virtual camera, convert the current direction information of the unit vector direction in the camera space into the world space, obtain the light direction data of the world space, and convert the light direction data of the world space The data is used as the target illumination direction data.

In the embodiment of the present disclosure, since the initial illumination direction data is represented by the unit vector direction relative to the virtual camera, after obtaining the current lens orientation information of the virtual camera, the current position of the unit vector direction in the camera space can be determined. Direction information, and then through the world space transformation matrix of the virtual camera, the light direction data in the world space can be determined, and the target light direction data can be obtained. In this way, the determination efficiency of the target light direction data can be improved.

In a possible implementation manner, the initial lighting position data is represented by a preset distance relative to the virtual camera, and the data is based on the target lighting direction data, the current position information of the target object model, and the The initial lighting position data, determine the target lighting position data, including:

According to the direction indicated by the target lighting direction data, the current position information of the target object model is used as the starting point to offset the preset distance to obtain the lighting position data of the world space, and the lighting position data of the world space As the target illumination position data.

In the embodiment of the present disclosure, since the initial lighting position data is represented by a preset distance relative to the virtual camera, after obtaining the target lighting direction data, the target lighting direction data can be used according to the direction indicated by the target lighting direction data. The current position information of the target object model is offset by the preset distance from the starting point to obtain the light position data in the world space. In this way, the efficiency of determining the target illumination position data can be improved.

In a possible implementation manner, the model initial illumination data further includes initial illumination color data and initial illumination intensity data; the target object model is generated based on the model target illumination data and the model initial illumination data The corresponding first lighting information includes:

Processing the initial illumination intensity according to the current position information of the target object model and the target illumination position data to obtain target illumination intensity data based on the surface of the target object model;

First illumination information corresponding to the target object model is generated based on the target illumination intensity data, the initial illumination color data, and the target illumination direction data.

In the embodiment of the present disclosure, by combining the processed target light intensity data, target light direction data and initial light color data, the corresponding first light information of the target object model can be generated, and then the light source corresponding to the target object model can be realized. lighting effects.

In a possible implementation manner, the initial illumination intensity is processed according to the current position information of the target object model and the target illumination position data to obtain the target illumination intensity based on the surface of the target object model data, including:

According to the current position information of the target object model and the target lighting position data, determine the distance between the target object model and the lighting position indicated by the target lighting position data;

determining the linear attenuation of the initial illumination intensity based on the distance between the target object model and the illumination position;

The initial light intensity is processed according to the linear attenuation amount to obtain the target light intensity.

In the embodiment of the present disclosure, by performing attenuation processing on the initial light intensity, the light intensity received by the target object model can be made closer to the real light effect, thereby further improving the rendering effect of the model.

In a possible implementation manner, performing lighting rendering on the target object model based on the first lighting information and the second lighting information includes:

Performing first lighting rendering on the target object model based on the first lighting information to obtain a first lighting rendering result;

Performing second lighting rendering on the target object model based on the second lighting information to obtain a second lighting rendering result;

The first lighting rendering result is fused with the second lighting rendering result to obtain the lighting rendering result of the target object model.

In the embodiment of the present disclosure, the target object model is rendered separately through the first lighting information and the second lighting information, and the rendering results are fused to realize the independent rendering effect of the model in the scene, thereby improving the rendering effect of the scene. Overall rendering of multiple models.

An embodiment of the present disclosure provides an illumination rendering device, including:

A data acquisition module, configured to acquire model initial lighting data corresponding to the target object model, where the model initial lighting data is generated by pre-configuration by the user;

A data processing module, configured to obtain the current position information of the target object model in the target scene and the current lens information of the virtual camera, and process the initial lighting data of the model based on the current position information and the current lens information , to obtain the illumination data of the model target;

An information generating module, configured to generate first lighting information corresponding to the target object model based on the model target lighting data and the model initial lighting data;

A model rendering module, configured to acquire second lighting information of a scene light source of the target scene, and perform lighting rendering on the target object model based on the first lighting information and the second lighting information.

In a possible implementation manner, the model initial illumination data includes initial illumination direction data and initial illumination position data; the data processing module is specifically used for:

Based on the current lens orientation information of the virtual camera, the initial illumination direction data is processed to obtain target illumination direction data;

Determine target lighting position data according to the target lighting direction data, current position information of the target object model, and the initial lighting position data;

Obtain the model target illumination data based on the target illumination direction data and the target illumination position data.

In a possible implementation manner, the initial illumination direction data is represented by a unit vector direction relative to the virtual camera, and the data processing module is specifically configured to:

Based on the current lens orientation information of the virtual camera, determine the current direction information of the unit vector direction in camera space;

According to the world space transformation matrix of the virtual camera, convert the current direction information of the unit vector direction in the camera space into the world space, obtain the light direction data of the world space, and convert the light direction data of the world space The data is used as the target illumination direction data.

In a possible implementation manner, the initial lighting position data is represented by a preset distance relative to the virtual camera, and the data processing module is specifically configured to:

According to the direction indicated by the target lighting direction data, the current position information of the target object model is used as the starting point to offset the preset distance to obtain the lighting position data of the world space, and the lighting position data of the world space As the target illumination position data.

In a possible implementation manner, the initial illumination data of the model also includes initial illumination color data and initial illumination intensity data; the information generating module is specifically used for:

Processing the initial illumination intensity according to the current position information of the target object model and the target illumination position data to obtain target illumination intensity data based on the surface of the target object model;

First illumination information corresponding to the target object model is generated based on the target illumination intensity data, the initial illumination color data, and the target illumination direction data.

In a possible implementation manner, the information generating module is specifically configured to:

According to the current position information of the target object model and the target lighting position data, determine the distance between the target object model and the lighting position indicated by the target lighting position data;

determining the linear attenuation of the initial illumination intensity based on the distance between the target object model and the illumination position;

The initial light intensity is processed according to the linear attenuation amount to obtain the target light intensity.

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

Performing first lighting rendering on the target object model based on the first lighting information to obtain a first lighting rendering result;

Performing second lighting rendering on the target object model based on the second lighting information to obtain a second lighting rendering result;

The first lighting rendering result is fused with the second lighting rendering result to obtain the lighting rendering result of the target object model.

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 and the The memories communicate through a bus, and the machine-readable instructions are executed by the processor to execute the light rendering method described in any one of the above-mentioned implementation manners.

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 illumination rendering method described in any one of the foregoing implementation manners 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 illustrate the technical solutions of the embodiments of the present disclosure more clearly, the following will briefly introduce the accompanying drawings used in the embodiments. The accompanying drawings here are incorporated into the specification and constitute a part of the specification. The drawings show the embodiments consistent with the present disclosure, and are used together with the description to explain the technical solution of the present disclosure. 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, they can also make From these drawings other related drawings are obtained.

FIG. 1 shows a flow chart of a lighting rendering method provided by some embodiments of the present disclosure;

Fig. 2 shows a flowchart of a method for processing initial lighting data of a model provided by some embodiments of the present disclosure;

Fig. 3 shows a flowchart of a method for performing lighting rendering on a target object model based on lighting information provided by some embodiments of the present disclosure;

Fig. 4 shows a schematic structural diagram of an illumination rendering device provided by some embodiments of the present disclosure;

Fig. 5 shows a schematic diagram of an electronic device provided by some embodiments 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 It is a part of the embodiments of the present disclosure, but 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 can be three kinds of relationships, for example, A and/or B can mean: there is A alone, A and B exist at the same time, and B exists alone. situation. In addition, the term "at least one" herein means any one of a variety or any combination of at least two of the more, for example, including at least one of A, B, and C, which may mean including from A, Any one or more elements selected from the set formed by B and C.

Online games are very popular among users because of their high authenticity of game scenes, good viewing and operability. After research, it is found that in order to meet the higher visual effect requirements of users, in the rendering process, in addition to using scene light sources, a separate light source is usually set for each character model. However, although this method can highlight the dynamic visual effect of the character in the scene, since each character model corresponds to a separate light, when different character models are close together, the lights between the character models will affect each other. And then affect the overall visual display effect. In addition, due to the increase in the number of lights, the calculation pressure of the rendering pipeline will be increased during the rendering process, resulting in a decrease in performance overhead, which in turn will affect the smoothness of the game.

Based on the above research, the present disclosure provides a lighting rendering method. First, the initial lighting data of the model corresponding to the target object model is obtained, and the initial lighting data of the model is generated by the user's pre-configuration; The current position information and the current lens information of the virtual camera, and based on the current position information and the current lens information, process the initial lighting data of the model to obtain the model target lighting data; then based on the model target lighting data and the obtained The initial lighting data of the model is generated to generate the first lighting information corresponding to the target object model; finally, the second lighting information of the scene light source of the target scene is obtained, and based on the first lighting information and the second lighting information The target object model performs lighting rendering.

In the embodiment of the present disclosure, since the first lighting information corresponding to the target object model is generated by the initial lighting data of the model pre-configured by the user, it is not necessary to set a separate light source for the target object model to achieve a separate lighting effect on the target object model , and then different models will not affect each other when they are close together, so that the rendering effect of the model can be improved. In addition, since the initial lighting data of each model can be shared among the models, in the process of generating the first lighting information of each model, part of the data only needs to be calculated once, which can reduce the calculation pressure of the rendering pipeline, that is, It can improve the rendering effect while ensuring the smoothness of the rendered image.

In order to facilitate the understanding of this embodiment, firstly, a detailed introduction will be given to the execution subject of the illumination rendering method provided by the embodiment of the present disclosure. The execution subject of the lighting rendering method provided by the embodiment of the present disclosure is an electronic device. The electronic device may be a terminal device or a server. Wherein, the terminal device may be a mobile device, a user terminal, a terminal, a handheld device, a computing device, a vehicle-mounted device, a wearable device, and the like. The server can be an independent physical server, a server cluster or a distributed system composed of multiple physical servers, or a basic cloud that provides cloud services, cloud databases, cloud computing, cloud storage, big data and artificial intelligence platforms. Cloud server for computing services. In other implementation manners, the light rendering method may also be implemented by a processor calling computer-readable instructions stored in a memory.

The lighting rendering method provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings. Referring to FIG. 1 , which is a flowchart of a lighting rendering method provided by an embodiment of the present disclosure, the lighting rendering method includes the following S101-S104:

S101. Acquire model initial lighting data corresponding to a target object model, where the model initial lighting data is generated by pre-configuration by a user.

Exemplarily, the target object may be a virtual object in a virtual scene, and a virtual object refers to a thing in a virtual scene, and a virtual object includes but is not limited to at least one of virtual characters, animals, plants, furniture or buildings, etc. . In the embodiments of the present disclosure, the target object is a controllable dynamic object in the virtual scene.

It can be understood that a virtual scene refers to a digital scene drawn by a computer through digital communication technology, including two-dimensional virtual scenes and three-dimensional virtual scenes. Virtualization technology can be used to simulate various material forms and spatial relationships in the world. Among them, the three-dimensional virtual scene can display the shape of the object more beautifully, and can also display the virtual reality world more intuitively. For example, objects in the three-dimensional virtual scene may include at least one of terrain, houses, trees, characters, and the like.

For the virtual scene, it can be displayed by computer three-dimensional graphics, and a three-dimensional simulation environment can be displayed on the screen, and all target objects in the virtual scene can be described by three-dimensional scene data. For example, 3D scene data can be loaded into the 3D scene to display a 3D simulation environment. Wherein, the three-dimensional scene data may include at least one of model data, texture data, illumination data, terrain data, grid volume data, and the like.

In the embodiment of the present disclosure, the virtual scene is a scene for the player to control the target object to complete the game logic. The virtual scene can be a simulation environment of the real world, or a half-simulation and half-fictional virtual environment, or a purely fictitious virtual environment. environment. The virtual environment may be sky, land, ocean, etc., wherein the land includes environmental elements such as deserts and cities.

In addition, in the embodiment of the present disclosure, besides the scene light source, the illumination data also includes the initial illumination data of each model corresponding to the model, and the initial illumination data of the model is pre-configured and generated by the user. For example, users can first configure the corresponding model initial lighting data for each model in the Excel table, and then import the data into the corresponding project when using it.

Optionally, the model initial illumination data includes initial illumination direction data, initial illumination position data, initial illumination color data, initial illumination intensity data, and the like.

It can be understood that before rendering the target object model, it is necessary to obtain the scene file for which the 3D model needs to be built, and create a virtual scene according to the scene file, and then display and process the target object model in the virtual scene.

It should be noted that, in the embodiment of the present invention, when processing the 3D model, the 3D model design tool can be used to establish the model first, and then the 3D model development tool is used to further process the model, and finally the required 3D model can be obtained. Model.

Furthermore, after the 3D model of the target object is established, the 3D model can be exported for further model processing by the 3D model development tool. The embodiment of the present invention mainly describes the process of rendering the 3D model during the game after the 3D model is established.

S102. Obtain the current position information of the target object model in the target scene and the current lens information of the virtual camera, and process the initial lighting data of the model based on the current position information and the current lens information to obtain a model target lighting data.

Wherein, the target scene can be the aforementioned virtual scene. It can be understood that since the target object is a dynamic control object in the virtual scene, the position of the target object in the virtual scene will change, and when the target object is in a different position, the received The lighting effect is different, that is, when the light source in the virtual scene changes, the ambient lighting effect in the virtual scene will also change accordingly. In addition, as the position of the virtual object changes, the visual display content presented on the screen is also different.

Therefore, in some embodiments, it is necessary to obtain the current position information of the target object model in the target scene and the current lens information of the virtual camera, and initially illuminate the model based on the current position information and the current lens information The data is processed to obtain the model target lighting data, so that the target lighting data matches the current state of the target object model.

Exemplarily, based on the current position information and the current lens information, the initial lighting direction data and the initial lighting position data in the model's initial lighting data can be processed to obtain the model target relative to the model and the virtual camera lighting data.

In a possible implementation manner, as shown in FIG. 2, for step S102, when the model initial lighting data is processed based on the current position information and the current lens information to obtain the model target lighting data, Including the following S1021~S1023:

S1021. Based on the current lens orientation information of the virtual camera, process the initial illumination direction data to obtain target illumination direction data.

It can be understood that since the initial lighting direction data is in the camera space, it is necessary to process the initial lighting direction data to obtain the lighting direction data in the world space for subsequent lighting rendering. In some embodiments, the initial illumination direction data may be represented by a unit vector direction relative to the virtual camera. Therefore, after obtaining the current lens orientation information of the virtual camera, it can be determined that the unit vector direction is The current direction information of the camera space; then according to the world space transformation matrix of the virtual camera, the current direction information of the unit vector direction in the camera space is transformed into the world space to obtain the light direction data of the world space, and The light direction data of the world space is used as the target light direction data. In this way, the efficiency of determining the target illumination direction data can be improved.

S1022. Determine target lighting position data according to the target lighting direction data, current position information of the target object model, and the initial lighting position data.

Exemplarily, the initial lighting position data is represented by a preset distance relative to the virtual camera, therefore, after obtaining the target lighting direction data, the target can be The current position information of the object model is that the starting point is offset by the preset distance to obtain the lighting position data in the world space, and use the lighting position data in the world space as the target lighting position data. In this way, the efficiency of determining the target illumination position data can be improved. In this embodiment, the initial lighting position data is an offset value in the world space.

S1023. Obtain the model target lighting data based on the target lighting direction data and the target lighting position data.

It can be understood that after obtaining the light direction data in the world space and the light position data in the world space, the model target light data can be generated.

In the embodiment of the present disclosure, the initial illumination direction data is processed through the current lens orientation information of the virtual camera, and the initial illumination position data is adjusted through the current position information of the target object model, so that the adjusted illumination direction is relative to The adjusted lighting position of the virtual camera is relative to the target object model, not relative to the scene, and since the rendering shader of each model only receives the model's initial lighting data and model target lighting data corresponding to the model itself, and then The first lighting information corresponding to the model itself is generated without involving other models, so it can be ensured that the lighting between the models will not affect each other when different models are close to each other.

S103. Based on the model target lighting data and the model initial lighting data, generate first lighting information corresponding to the target object model.

It can be understood that the initial illumination data of the model includes not only initial illumination direction data and initial illumination position data, but also initial illumination color data and initial illumination intensity data. Wherein, the initial illumination direction data and the initial illumination position data are processed through the aforementioned process to obtain the target illumination direction data and the target illumination position data. Therefore, the simulated light source corresponding to the target object model can be obtained by combining the target illumination direction data, the target illumination position data, the initial illumination color data and the initial illumination intensity data. It should be noted that the simulated light source is only for the target object model and will not affect other models.

However, since there is a distance between the illumination position of the simulated light source and the target object model, in order to improve the real effect of illumination, the initial illumination intensity needs to be adjusted according to the current position information of the target object model and the target illumination position data. processing to obtain the target illumination intensity data based on the surface of the target object model, and then combine the target illumination direction data and target illumination position data with the target illumination intensity data to obtain the first illumination information corresponding to the target object model.

In a possible implementation manner, the rendering shader may determine the linear attenuation of the initial light intensity according to the distance from the target object model table □ to the light position, and obtain the target light intensity received by the model table □. That is, the rendering shader may first determine the distance between the target object model and the lighting position indicated by the target lighting position data according to the current position information of the target object model and the target lighting position data; and then Determine the linear attenuation of the initial illumination intensity based on the distance between the target object model and the illumination position; then process the initial illumination intensity according to the linear attenuation to obtain the target illumination intensity .

S104. Acquire second lighting information of a scene light source of the target scene, and perform lighting rendering on the target object model based on the first lighting information and the second lighting information.

Among them, in computer graphics, rendering refers to the process of two-dimensionally projecting each object model in a three-dimensional scene into a digital image according to the set environment, material, lighting and rendering parameters. Wherein, the lighting rendering refers to performing lighting calculation processing on the target object model during the rendering process, so that pixels on the surface of the target object model have lighting effects.

The light source in the virtual scene is a series of lighting data that can truly simulate the lighting effect of the light source in reality. Similar to the light source in reality, when the colored light source in the virtual scene is projected onto the surface of the colored object, the final rendered color depends on the reflection and absorption of the light. Different from real light sources, the light source in the virtual scene can be a virtual light source node without shape or outline. Wherein, the light source in reality refers to an object that can emit light by itself and is emitting light, such as the sun, an electric lamp, burning substances, and the like.

In some possible embodiments, the target object model may be rendered simultaneously based on the first lighting information and the second lighting information to obtain a lighting rendering result. In some other possible embodiments, as shown in FIG. 3 , when performing lighting rendering on the target object model based on the first lighting information and the second lighting information, the following steps S1041-S1043 may also be included:

S1041. Perform first lighting rendering on the target object model based on the first lighting information to obtain a first lighting rendering result.

S1042. Perform second lighting rendering on the target object model based on the second lighting information to obtain a second lighting rendering result.

S1043. Merge the first lighting rendering result and the second lighting rendering result to obtain a lighting rendering result of the target object model.

In the embodiment of the present disclosure, the target object model is rendered separately through the first lighting information and the second lighting information, and the rendering results are fused to realize the independent rendering effect of the model in the scene, thereby improving the rendering effect of the scene. Overall rendering of multiple models.

Those skilled in the art can understand that in the above method of specific implementation, the writing order of each step does not mean a strict execution order and constitutes any limitation on the implementation process. The specific execution order of each step should be based on its function and possible The inner logic is OK.

Based on the same technical idea, the embodiment of the present disclosure also provides an illumination rendering device corresponding to the illumination rendering method. Since the problem-solving principle of the device in the embodiment of the disclosure is similar to that of the above-mentioned illumination rendering method in the embodiment of the disclosure, the implementation of the device Reference can be made to the implementation of the method, and repeated descriptions will not be repeated.

Referring to FIG. 4 , which is a schematic diagram of an illumination rendering device 400 provided by an embodiment of the present disclosure, the device includes:

A data acquisition module 401, configured to acquire model initial lighting data corresponding to the target object model, the model initial lighting data being generated by user pre-configuration;

The data processing module 402 is configured to acquire the current position information of the target object model in the target scene and the current lens information of the virtual camera, and perform the initial illumination data of the model based on the current position information and the current lens information Processing to obtain model target illumination data;

An information generating module 403, configured to generate first lighting information corresponding to the target object model based on the model target lighting data and the model initial lighting data;

The model rendering module 404 is configured to acquire second lighting information of a scene light source of the target scene, and perform lighting rendering on the target object model based on the first lighting information and the second lighting information.

In a possible implementation manner, the model initial illumination data includes initial illumination direction data and initial illumination position data; the data processing module 402 is specifically used for:

Based on the current lens orientation information of the virtual camera, the initial illumination direction data is processed to obtain target illumination direction data;

Determine target lighting position data according to the target lighting direction data, current position information of the target object model, and the initial lighting position data;

Obtain the model target illumination data based on the target illumination direction data and the target illumination position data.

In a possible implementation manner, the initial illumination direction data is represented by a unit vector direction relative to the virtual camera, and the data processing module 402 is specifically configured to:

Based on the current lens orientation information of the virtual camera, determine the current direction information of the unit vector direction in camera space;

According to the world space transformation matrix of the virtual camera, convert the current direction information of the unit vector direction in the camera space into the world space, obtain the light direction data of the world space, and convert the light direction data of the world space The data is used as the target illumination direction data.

In a possible implementation manner, the initial lighting position data is represented by a preset distance relative to the virtual camera, and the data processing module 402 is specifically configured to:

According to the direction indicated by the target lighting direction data, the current position information of the target object model is used as the starting point to offset the preset distance to obtain the lighting position data of the world space, and the lighting position data of the world space As the target illumination position data.

In a possible implementation manner, the initial illumination data of the model also includes initial illumination color data and initial illumination intensity data; the information generation module 403 is specifically used for:

Processing the initial illumination intensity according to the current position information of the target object model and the target illumination position data to obtain target illumination intensity data based on the surface of the target object model;

First illumination information corresponding to the target object model is generated based on the target illumination intensity data, the initial illumination color data, and the target illumination direction data.

In a possible implementation manner, the information generating module 403 is specifically configured to:

According to the current position information of the target object model and the target lighting position data, determine the distance between the target object model and the lighting position indicated by the target lighting position data;

determining the linear attenuation of the initial illumination intensity based on the distance between the target object model and the illumination position;

The initial light intensity is processed according to the linear attenuation amount to obtain the target light intensity.

In a possible implementation manner, the model rendering module 404 is specifically configured to:

Performing first lighting rendering on the target object model based on the first lighting information to obtain a first lighting rendering result;

Performing second lighting rendering on the target object model based on the second lighting information to obtain a second lighting rendering result;

The first lighting rendering result is fused with the second lighting rendering result to obtain the lighting rendering result of the target object model.

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. 5 , it is a schematic structural diagram of an electronic device 500 provided by an embodiment of the present disclosure, including a processor 501 , a memory 502 , and a bus 503 . Among them, the memory 502 is used to store execution instructions, including a memory 5021 and an external memory 5022; the memory 5021 here is also called an internal memory, and is used to temporarily store calculation data in the processor 501 and exchange data with an external memory 5022 such as a hard disk. The processor 501 exchanges data with the external memory 5022 through the memory 5021 .

In the embodiment of the present application, the memory 502 is specifically used to store application program codes executing the solution of the present application, and the execution is controlled by the processor 501 . That is, when the electronic device 500 is running, the processor 501 communicates with the memory 502 through the bus 503 , so that the processor 501 executes the application program code stored in the memory 502 , and then executes the method described in any of the foregoing embodiments.

Wherein, the memory 502 can be, but not limited to, random access memory (Random Access Memory, RAM), read only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM), can Erasable Programmable Read-Only Memory (EPROM), Electric Erasable Programmable Read-Only Memory (EEPROM), etc.

The processor 501 may be an integrated circuit chip and has signal processing capability. Above-mentioned processor can be general-purpose processor, comprises central processing unit (Central Processing Unit, CPU), network processor (NetworkProcessor, NP) etc.; It can also be digital signal processor (Digital Signal Processing, DSP), ASIC (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, 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 500 . In other embodiments of the present application, the electronic device 500 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 illumination rendering method in the foregoing method embodiments are executed. Wherein, the storage medium may be a volatile or non-volatile computer-readable storage medium.

Embodiments of the present disclosure also provide 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 lighting 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), etc. wait.

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 can be combined or May be 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 this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used 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 methods described in various embodiments of the present disclosure. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.

Finally, it should be noted that: the above-mentioned embodiments are only specific implementations of the present disclosure, and are used to illustrate the technical solutions of the present disclosure, rather than limit them, and the protection scope of the present disclosure is not limited thereto, although referring to the aforementioned The embodiments have described the present disclosure in detail, and those skilled in the art should understand that any person familiar with the technical field can still modify the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present disclosure Changes can be easily imagined, or equivalent replacements can be 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 spirit and scope of the technical solutions of the embodiments of the present disclosure, and should be included in this disclosure. within the scope of protection. Therefore, the protection scope of the present disclosure should be defined by the protection scope of the claims.

Claims (10)

1. A lighting rendering method, comprising:

obtaining model initial illumination data corresponding to a target object model, wherein the model initial illumination data is generated by user pre-configuration;

acquiring current position information of the target object model in a target scene and current lens information of a virtual camera, and processing the initial illumination data of the model based on the current position information and the current lens information to obtain model target illumination data;

generating first illumination information corresponding to the target object model based on the model target illumination data and the model initial illumination data;

and acquiring second illumination information of a scene light source of the target scene, and performing illumination rendering on the target object model based on the first illumination information and the second illumination information.

2. The method of claim 1, wherein the model initial lighting data comprises initial lighting direction data and initial lighting position data; the processing the model initial illumination data based on the current position information and the current lens information to obtain model target illumination data comprises:

processing the initial illumination direction data based on the current lens orientation information of the virtual camera to obtain target illumination direction data;

determining target illumination position data according to the target illumination direction data, the current position information of the target object model and the initial illumination position data;

and obtaining the model target illumination data based on the target illumination direction data and the target illumination position data.

3. The method of claim 2, wherein the initial lighting direction data is expressed in a unit vector direction relative to the virtual camera, and wherein the processing the initial lighting direction data based on current lens orientation information of the virtual camera to obtain target lighting direction data comprises:

determining current direction information of the unit vector direction in a camera space based on current lens orientation information of the virtual camera;

and converting the current direction information of the unit vector direction in the camera space into a world space according to the world space transformation matrix of the virtual camera to obtain illumination direction data of the world space, and taking the illumination direction data of the world space as the target illumination direction data.

4. A method according to claim 2 or 3, wherein the initial lighting position data is represented in a preset distance relative to the virtual camera, and wherein determining target lighting position data from the target lighting direction data, current position information of the target object model and the initial lighting position data comprises:

and offsetting the preset distance by taking the current position information of the target object model as a starting point according to the direction indicated by the target illumination direction data to obtain illumination position data of the world space, and taking the illumination position data of the world space as the target illumination position data.

5. The method of claim 2, wherein the model initial lighting data further comprises initial lighting color data and initial lighting intensity data; generating first illumination information corresponding to the target object model based on the model target illumination data and the model initial illumination data, including:

processing the initial illumination intensity according to the current position information of the target object model and the target illumination position data to obtain target illumination intensity data based on the surface of the target object model;

and generating first illumination information corresponding to the target object model based on the target illumination intensity data, the initial illumination color data and the target illumination direction data.

6. The method according to claim 5, wherein the processing the initial illumination intensity according to the current position information of the target object model and the target illumination position data to obtain the target illumination intensity data based on the surface of the target object model comprises:

determining the distance between the target object model and the illumination position indicated by the target illumination position data according to the current position information of the target object model and the target illumination position data;

determining a linear amount of attenuation of the initial illumination intensity based on a distance between the target object model and the illumination location;

and processing the initial illumination intensity according to the linear attenuation amount to obtain the target illumination intensity.

7. The method of claim 1, wherein the photo-rendering the target object model based on the first and second photo-information comprises:

performing first illumination rendering on the target object model based on the first illumination information to obtain a first illumination rendering result;

performing second illumination rendering on the target object model based on the second illumination information to obtain a second illumination rendering result;

and fusing the first illumination rendering result and the second illumination rendering result to obtain an illumination rendering result of the target object model.

8. An illumination rendering apparatus, comprising:

the data acquisition module is used for acquiring model initial illumination data corresponding to a target object model, and the model initial illumination data is generated by user pre-configuration;

the data processing module is used for acquiring current position information of the target object model in a target scene and current lens information of the virtual camera, and processing the model initial illumination data based on the current position information and the current lens information to obtain model target illumination data;

the information generation module is used for generating first illumination information corresponding to the target object model based on the model target illumination data and the model initial illumination data;

and the model rendering module is used for acquiring second illumination information of a scene light source of the target scene and performing illumination rendering on the target object model based on the first illumination information and the second illumination information.

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 communicating over the bus when the electronic device is running, the machine-readable instructions when executed by the processor performing the illumination rendering method of any of claims 1-7.

10. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, performs a lighting rendering method according to any one of claims 1-7.

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