CN114119834A - Rendering method, rendering device, electronic equipment and readable storage medium - Google Patents
Rendering method, rendering device, electronic equipment and readable storage medium Download PDFInfo
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- CN114119834A CN114119834A CN202111468685.9A CN202111468685A CN114119834A CN 114119834 A CN114119834 A CN 114119834A CN 202111468685 A CN202111468685 A CN 202111468685A CN 114119834 A CN114119834 A CN 114119834A
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- A63F13/52—Controlling the output signals based on the game progress involving aspects of the displayed game scene
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- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
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- A63F2300/60—Methods for processing data by generating or executing the game program
- A63F2300/66—Methods for processing data by generating or executing the game program for rendering three dimensional images
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Abstract
The application discloses a rendering method, a rendering device, an electronic device and a readable storage medium, wherein the method comprises the following steps: receiving a real terrain model according to a scene to be rendered; dividing a scene to be rendered into plots and building communities; receiving simple model parameters of plots and building communities according to the distance between the plots and the camera position; generating a combination of agent grids and material examples respectively corresponding to the land parcel and the building community according to the real terrain model and the simple model parameters; and receiving the simple model of the terrain prosthesis of the scene to be rendered, and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example. According to the method, the rendering is different in effect according to the distance of the terrain or the building community, so that the rendering effect is guaranteed, the occupation of the memory and the hardware performance consumption are reduced, and the dynamic balance between the effect and the performance consumption is achieved; and the material example is used for replacing the use of the material, so that the size of the bag body is reduced to the great extent, the memory occupancy rate is greatly reduced, and the game experience is obviously improved.
Description
Technical Field
The present application relates to the field of image processing technologies, and in particular, to a rendering method, an apparatus, an electronic device, and a readable storage medium.
Background
In the open world game, the scene is larger and larger, the cost of memory and rendering performance is very high, and especially for the game at a mobile end, a large number of objects exist in the scene from a long distance, so that the consumption is very high, but the displayed effect is not so outstanding.
In the prior art, for rendering of a large scene, a UE4 engine is generally used for rendering, which provides two sets of World wide schemes and a streaming loading technology, namely levelstreamstreamingvolume (currently, there is no unified Chinese name in the industry) and World Composition (currently, there is no unified Chinese name in the industry).
However, the two technologies still have many disadvantages, for example, the two technologies cannot be directly used in the product level, and still need many strategies to be matched and the engine source code to be modified; the default scheme of the UE4 engine still consumes a lot of money in the bag body and memory, and still cannot reach an ideal consumption range for a large multiplayer online (MMO) type game, especially for the generation of LevelLOD material, which still requires great performance consumption.
Disclosure of Invention
In view of the foregoing, embodiments of the present application provide a rendering method, an apparatus, an electronic device, and a readable storage medium, so as to overcome or partially overcome the defects in the prior art.
In a first aspect, a rendering method is provided, including:
receiving a real terrain model according to a scene to be rendered;
dividing a scene to be rendered into plots and building communities;
receiving simple model parameters of the land parcel and the building community according to the distance between the land parcel and the camera position;
generating a combination of an agent grid and a material example respectively corresponding to the land parcel and the building community according to the real terrain model and the simple model parameters;
and receiving the simple model of the terrain prosthesis of the scene to be rendered, and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example.
In a second aspect, there is provided a rendering apparatus, the apparatus comprising:
the model receiving unit is used for receiving a real terrain model according to a scene to be rendered;
the segmentation unit is used for segmenting a scene to be rendered into a plot and a building community;
the parameter receiving unit is used for receiving the simple model parameters of the plots and the building communities according to the distance between the plots and the camera position;
the generating unit is used for generating the combination of the agent grids and the material examples respectively corresponding to the land parcel and the building community according to the real terrain model and the simple model parameters;
and the rendering unit is used for receiving the simple model of the terrain prosthesis of the scene to be rendered and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example.
In a third aspect, an embodiment of the present application further provides an electronic device, including: a processor; and a memory arranged to store computer executable instructions that, when executed, cause the processor to perform any of the methods described above.
In a fourth aspect, this application embodiment also provides a computer-readable storage medium storing one or more programs which, when executed by an electronic device including a plurality of application programs, cause the electronic device to perform any of the methods described above.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the method and the device have the advantages that the scene to be rendered is divided into the plots and the plurality of level cards of the building community, different rendering parameters which are set according to the distance between each level card and a virtual character are received, corresponding combination of the agent grids and the material examples is generated according to the rendering parameters, and when the rendering is carried out, for the different plots and the building community, the combination of the corresponding agent grids and the material examples is adopted for rendering according to the distance between the different plots and the virtual character, so that the memory occupation and the performance expenditure are greatly reduced on the premise that the rendering effect is guaranteed, and the game experience is remarkably improved. According to the method, the rendering is different in effect according to the distance of the terrain or the building community, so that the rendering effect is guaranteed, the occupation of the memory and the hardware performance consumption are reduced to a great extent, and the dynamic balance between the effect and the performance consumption is achieved; and the material example is used for replacing the use of the material, so that the size of the bag body is reduced to the great extent, the memory occupancy rate is greatly reduced, and the game experience is obviously improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 shows a flow diagram of a rendering method according to an embodiment of the application;
FIG. 2 shows a schematic diagram of a rendering method according to another embodiment of the present application;
FIG. 3 shows a schematic structural diagram of a rendering apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work according to the embodiments of the present application are within the scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
In the prior art, a UE4 engine is generally adopted to render scenes of a world game, but the UE4 engine is a general game engine, is good at First Person Shooter (FPS) type games, and cannot be directly adapted to loading strategies and schemes of large multiplayer online (MMO) type games; for example, the UE4 engine defaults to generate a new proxy model and a new material for each level of detail (levelld), the material is not a material example, and when there are multiple customs that require levelld generation, hundreds of materials are generated, which seriously increases the size of the bag.
The method and the system have the advantages that the scenes are divided according to the plots and the building communities, so that workers can set different simple model parameters of each plot or each building community at different distances, different agent grids and material examples are generated according to different distances between a target virtual character and the plots or the building communities during rendering, the purposes of different distances and different rendering means are achieved, and the purpose of balancing rendering effect and performance consumption is achieved.
Fig. 1 shows a schematic flowchart of a rendering method according to an embodiment of the present application, and as can be seen from fig. 1, the present application at least includes steps S110 to S150:
step S110: a real terrain model according to a scene to be rendered is received.
In the prior art, for rendering of game pictures in the open world, a UE4 engine is generally adopted, but the UE4 engine is a general game engine and is better at playing FPS type games, while for MMO type games, the loading strategy and scheme cannot be directly adapted. On the other hand, in the UE4 engine, the problems of high memory occupancy rate and large bag body still cannot be solved well, for example, the UE4 engine defaults that a new proxy model and a new material are generated for each level simple model (levelld), and when a plurality of levels need to be generated, many materials are generated, even hundreds of materials are generated, so that the size of the bag body is seriously affected, and the performance consumption is increased.
In order to solve the problems, the application provides a rendering method, a scene is divided into at least one land parcel and one building community, and different simple model parameters of the land parcel and the building community are set under different distances (the distances between the land parcel or the building community and a camera position), so that proxy models and material examples of the land parcel and the building community under different distances are generated, different rendering methods can be adopted when the distances are different, and the purpose of saving performance consumption as far as possible is achieved on the premise of guaranteeing the rendering effect.
First, a real terrain model from a scene to be rendered is received, typically via third party software. The real terrain of the scene in the game is carved by an art designer, 3D modeling software is required to be adopted to scan the real terrain to form a three-dimensional model, and the surface of the three-dimensional model is free of materials and pictures because the three-dimensional model is directly obtained by scanning, so that the surface of the three-dimensional model can be understood as being white. However, the three-dimensional model has extremely high accuracy, and the number of faces of the model is extremely large, and the three-dimensional model is called a real terrain model.
When a real terrain model is generated and in a subsequent modeling process, Houdini software can be used, the Houdini is a three-dimensional computer graphics software which is a product designed completely according to a node mode, and the Houdini has an interface of a third-party renderer and can export a scene to other rendering engines for rendering. The reason why the Houdini software is recommended to be used is that the programming limitation of the Houdini software can be realized through the programmed node, the height of each vertex of the terrain model is lower than that of the real terrain, the mode penetrating is avoided, and the bad game experience brought to game players by the mode penetrating is avoided.
Step S120: and (4) dividing the real terrain model into a land parcel and a building community.
Breaking the division of the level in the original scene, dividing the scene to be rendered into one or more plots and a building community, wherein it needs to be noted that in one scene, the number of the plots can be one or more, and is usually multiple; the building community may also be one or more, usually more. One or more independent models may be included in a plot or a building community.
The land parcel division mode is not limited in the application, and the division is performed according to land parcel size, building style, building position and the like.
Step S130: and receiving the simple model parameters of the land parcel and the building community according to the distance between the land parcel and the camera position.
For the player, the things far away from the visual field are invisible, the precision of the things near the visual field is higher, the visual effect is better, and based on the visual effect, different simple model parameters are set for the plot and the building according to the distance from the camera position.
A scene generally includes one or more plots and one or more building communities, where, for example, a plot checkpoint is taken as an example, in the prior art, a checkpoint short model (LevelLOD) is generally required to be generated for a plot checkpoint, and the LevelLOD may be understood as generating a short model for all terrains or models in the checkpoint, and for the short model, a material needs to be generated, and the UE4 engine defaults to generate a new proxy model and a new material for each LevelLOD, which results in an oversized bag.
Different from the prior art, in some embodiments of the present application, for a parcel, according to a difference in distance from a camera position, the parcel may be divided into a near view, a middle view and a far view, and different rendering parameters are set according to a divided distance range. That is, for a parcel, there are three sets of simplified model parameters, corresponding to the near view, the medium view and the distant view, respectively.
The simple model parameters are manually set, and specifically comprise different parameters of plots and building communities at different distances from the camera position. In some embodiments of the present application, the simple model parameters mainly include display distance, terrain compression accuracy, material mapping size, whether highlight is required, roughness of the mapping, and the like.
Step S140: and generating a combination of the agent grids and the material examples respectively corresponding to the land parcel and the building community according to the real terrain model and the simple model parameters.
The agent grid can be understood as combining a plurality of models into a simple model, the number of the surfaces of the agent grid is low, but the material effect of the agent grid is not much different from that of the original model, but the performance consumption is low, the size of the bag body is obviously reduced, the agent grid replaces a plurality of models by one model, and the calling of a CPU (DrawCall) and the number of the surfaces are reduced.
A texture instance is an instance of a texture that inherits the texture, has shader logic for the texture, but exposes only the adjustable parameters (Params), and masks the ability to edit the shader so that when parameter(s) need to be modified for a model(s), no other model(s) using the texture will be affected. And when the logic of the material is updated, all the material examples are updated accordingly. This application has replaced prior art's material with the material example, has reduced the quantity of variant (shadow), and the inclusion can be dwindled, and the effect is the same with prior art uses main material.
Taking a parcel as an example, generating a combination of the proxy grid and the material example corresponding to the parcel according to the simplified model parameters, if the parcel has three sets of simplified model parameters corresponding to a close view, a middle view and a long view, generating three sets of combinations of the proxy grid and the material example for the parcel, and respectively corresponding to the close view, the middle view and the long view. In one rendering process, the combination of the three sets of proxy grids and the material examples cannot be used simultaneously, and only one of the three sets of proxy grids and the material examples is required to be called for use.
Similarly, for a building community checkpoint, the processing procedure of the building community checkpoint is the same as that of the block checkpoint, for a building community checkpoint, according to different distances between the building community and the camera position, the simple model parameters set at different distances are received, and according to the simple model parameters, combinations of the proxy grids and the material examples of the building community checkpoint at different distances are generated, and for a building community, the combinations of the proxy grids and the material examples in the near view, the middle view and the far view can be included.
For the generation of the proxy grid, the real model can be simplified according to simple model parameters, which is mainly reflected in the reduction of the number of faces and the reduction of the bag body. And according to the simple model parameters with different precisions, the proxy grids with different precisions can be obtained.
For a material example, it can be understood that a plurality of materials are integrated into one material example, the material types in the material example are inherited to the materials, and for a proxy grid, the common materials are used for rendering, so that recompilation is caused every time modification is performed, and the development efficiency is not high. While the texture instance allows editing any property on the detail panel, checking a check box next to the parameter name, which enables options that can then be adjusted for texture or scalar values or any parameter to be adjusted.
After the proxy grid is obtained as the material example, a "modeling" process is usually required, and the process can be implemented by the Houdini software, and after the proxy grid and the material example are generated by executing the rendering engine or the rendering device of the present application, a file in a specified format, such as an FPX file, can be output, and the FPX file is imported into Houdini to generate a simplified model of the terrain prosthesis.
The simple model of the terrain prosthesis can be understood as being obtained by fusing the agent grids of all land parcels and the agent grids of all building communities.
Step S150: and receiving the simple model of the terrain prosthesis of the scene to be rendered, and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example.
And finally, receiving the simple model of the terrain prosthesis of the scene to be rendered, and rendering the simple model of the terrain prosthesis according to the material example, namely generating the material and the mapping of the simple model of the terrain prosthesis. For example, for a static material instance, it may be dragged to the corresponding proxy grid.
The method shown in fig. 1 shows that, according to the method, a scene to be rendered is divided into a plurality of checkpoints of plots and building communities, different rendering parameters set for each checkpoint according to the distance between the checkpoint and a virtual character are received, and a corresponding combination of an agent grid and a material example is generated according to the rendering parameters. According to the method, the rendering is different in effect according to the distance of the terrain or the building community, so that the rendering effect is guaranteed, the occupation of the memory and the hardware performance consumption are reduced to a great extent, and the dynamic balance between the effect and the performance consumption is achieved; and the material example is used for replacing the use of the material, so that the size of the bag body is reduced to the great extent, the memory occupancy rate is greatly reduced, and the game experience is obviously improved.
In some embodiments of the present application, the receiving simple model parameters of the parcel and the building community according to a distance from a camera position includes: determining a first distance of the target parcel from the camera position; if the first distance is within the close range, receiving a first simple model parameter of the target land parcel, wherein the first simple model parameter is a real terrain simple model parameter; if the first distance is within the middle view distance range, receiving a second simple model parameter of the target parcel, wherein the second simple model parameter is a parcel level simple model parameter; and if the first distance is within the long-range distance range, receiving a third simple model parameter of the target land parcel, wherein the third simple model parameter is a terrain prosthesis simple model parameter.
A parcel usually comprises a plurality of models, for the parcel, this application usually adopts a simplified model to replace several or all models in the parcel, and the technical staff sets up through the simplified model parameter to the parcel customs under different distances, generates the agent grid and the material example corresponding to the parcel under different distances, thereby realizes the purpose of realizing the rendering of different precisions for different distances. The rendering effect requirement under the close shot is higher than that of the long shot, so when the rendering parameters are set, the precision of the parameters of the close shot is higher than that of the middle shot than that of the long shot for the land parcel of the close shot. In the application, for the plot, the real terrain simple model can be understood as the simple model with the highest precision, and when the requirement is higher, the real terrain model can be directly used; the precision of a plot checkpoint simple model (levelLOD) is lower than that of a real terrain simple model, the plot checkpoint can be understood as replacing some or all models in a plot by one simple model, and the number of faces of the plot checkpoint simple model is less than that of the real terrain simple model; the accuracy of the terrain prosthesis simple model is lower than that of the plot checkpoint simple model, and in some embodiments of the present application, the terrain prosthesis simple model is a static grid body, such as a mountain, which is simply abstracted into a cone. That is, for a parcel, as when its distance from the camera position falls within a close range, the simple model parameters of the parcel are required to meet the standard of real terrain; when the distance between the camera and the camera position belongs to a medium scene range, the simple model parameters of the plot are required to meet the requirements of the plot customs clearance simple model; and when the distance between the camera and the camera position belongs to a long-range view, the simple model parameters of the land parcel are required to meet the requirements of the terrain prosthesis.
In some embodiments of the present application, the receiving the simple model parameters of the parcel and the building community according to a distance from a camera position further includes: determining a second distance between the target building community and the camera position; if the second distance is within the close range, receiving a fourth simple model parameter of the target building community, wherein the fourth simple model parameter is a single simple model parameter; if the second distance is within the middle view distance range, receiving a fifth simple model parameter of the target building community, wherein the fifth simple model parameter is an area simple model parameter; and if the second distance is within the long-range distance range, receiving a sixth simple model parameter of the target building community, wherein the sixth simple model parameter is a building level simple model parameter.
Similarly, for the building community, the set simple model parameters are different under different distances from the camera position. In some embodiments of the present application, since the virtual character may approach or walk into one or some of the buildings in the building community in the game, in some cases, the rendering effect requirement of the building community checkpoint is higher than that of the parcel, and thus, the accuracy of the modeling parameters of the building community as a whole may be set higher.
In the application, for a building community, the precision of a single simple model (LOD) is the highest, which can be understood as that a single building is generated to be rendered, the requirement on the details is high, and the LOD level can be set to be higher when the parameters are set; the precision of the area simple mold (HLOD) is lower than that of a single simple mold, but higher than that of a building checkpoint simple mold (LelvelLOD); the precision of the building checkpoint simple model is equivalent to that of the plot checkpoint simple model. The area simplified model (HLOD) can also be understood as being further adjusted on the basis of a building customs clearance simplified model (lelverlod), dynamic simplification is not performed on an individual model independently, but a proxy model is generated by taking a cluster as a unit, so that further optimization is achieved, namely, a plurality of models in a building community are combined into one simplified model, the rendering effect of the simplified model is better than that of the customs clearance simplified model (lelverlod), the complexity of a scene model is greatly reduced compared with that of a single simplified model (LOD), and Draw Call can be further reduced through certain setting.
That is, for a building community, for example, when the distance between the building community and the camera position belongs to a close range, the simple model parameters of the building community are required to reach the standard of a single simple model; when the distance between the building community and the camera position belongs to a medium range, the simple model parameters of the building community are required to meet the requirement of regional simple model (HLOD); when the distance between the camera and the camera position belongs to a long-range view range, the simple model parameters of the land parcel are required to meet the requirements of a checkpoint simple model (LelvelLOD).
It should be noted that the close range, the middle range and the long range may also be set manually, and the staff may set according to experience and expected rendering effect; and the plot and building may be the same or different for these three areas.
In some embodiments of the present application, the generating, according to the real terrain model and the simple model parameters, a combination of an agent grid and a material example corresponding to the parcel and the building community, respectively, further includes: for a land parcel, if the received simple model parameter is the first simple model parameter, simplifying the real terrain model of the land parcel according to the real terrain simple model parameter to obtain a real terrain simple model which is used as a proxy grid corresponding to the land parcel, and determining a material example corresponding to the land parcel according to the first simple model parameter; if the received simple model parameter is the second simple model parameter, simplifying the real terrain model of the plot according to the plot checkpoint simple model parameter to obtain a plot checkpoint simple model which is used as a proxy grid corresponding to the plot, and determining a material example corresponding to the plot according to the second simple model parameter; and if the received simple model parameter is the third simple model parameter, simplifying the real terrain model of the land parcel according to the terrain prosthesis simple model parameter to obtain a terrain prosthesis simple model which is used as a proxy grid corresponding to the land parcel, and determining a material example corresponding to the land parcel according to the third simple model parameter.
During rendering, due to the fact that the distances between the proxy grids and the camera positions are different, for a parcel, the combination of the proxy grids and the material examples triggered each time is different, if the received simple model parameters are real terrain simple model parameters according to the distances between the proxy grids and the camera positions, the parcel is in a close range, and at the moment, the real terrain model is simplified according to the real terrain simple model parameters to obtain the proxy grids of the real terrain simple models and the corresponding material examples; similarly, if the received simple model parameter is a plot checkpoint simple model parameter according to the distance from the camera position, the plot is in a medium scene range, and at the moment, the real terrain model is simplified according to the plot checkpoint simple model parameter to obtain a proxy grid of the plot checkpoint simple model and a corresponding material example; and if the received simple model parameters are terrain prosthesis simple model parameters according to the distance from the camera position, the land parcel is in a distant view range, and at the moment, the real terrain model is simplified according to the terrain prosthesis simple model parameters to obtain an agent grid of the terrain prosthesis simple model and a corresponding material example.
In some embodiments of the present application, the generating, according to the real terrain model and the simple model parameters, a combination of an agent grid and a material example corresponding to the parcel and the building community, respectively, further includes: for a building community, if the received simple model parameters are the fourth simple model parameters, simplifying each building in the real terrain model of the building community according to the single simple model parameters to obtain a single simple model as an agent grid corresponding to the building community, and determining a material example corresponding to the building community according to the fourth simple model parameters; if the received simple model parameters are the fifth simple model parameters, grouping and simplifying a plurality of buildings in the real terrain model of the building community according to the regional simple model parameters to obtain regional simple models serving as proxy grids corresponding to the building community, and determining a material example corresponding to the building community according to the fifth simple model parameters; and if the received simple model parameters are the sixth simple model parameters, simplifying the real terrain model of the building community according to the building checkpoint parameters to obtain a building checkpoint simple model serving as a proxy grid corresponding to the building community, and determining a material example corresponding to the building community according to the sixth simple model parameters.
During rendering, due to the fact that the distances between the simple model and the camera position are different, for a building community, the combination of the agent grids and the material examples triggered each time is also different, if the received simple model parameters are single simple model parameters according to the distances between the simple model and the camera position, the building community is in a close range, at the moment, the real terrain model is simplified according to the single simple model parameters, in some embodiments, the real terrain model can be directly used, and therefore the agent grids of the single simple model and the corresponding material examples are obtained; if the received simple model parameters are regional simple model parameters according to the distance from the camera position, the building community is in a medium scene range, and at the moment, the real terrain models are grouped and simplified according to the regional simple model parameters to obtain an agent grid of the regional simple model and a corresponding material example; if the received simple model parameters are the building level simple model parameters according to the distance from the camera position, the plot is in the distant view range, and at the moment, the real terrain model is simplified according to the building level simple model parameters to obtain the proxy grid of the building level simple model and the corresponding material example.
In some embodiments of the present application, the receiving a simple model of a terrain prosthesis of the scene to be rendered, and generating a material and a map of the simple model of the terrain prosthesis according to the material example, includes: receiving a simple model of the terrain prosthesis, wherein the simple model of the terrain prosthesis is obtained by fusing the agent grids of the land parcel and the building community based on Houdini software; and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example of the land parcel and the material example of the building community.
The received simple model of the terrain prosthesis of the scene to be rendered is an integral model, but the precision of different land parcels and different building community agent grids is different, each agent grid has a corresponding material example, the simple model of the terrain prosthesis of the scene to be rendered is rendered directly according to the material examples, and the material and the chartlet of the simple model of the terrain prosthesis of the scene to be rendered are generated. For example, the simple model of the terrain prosthesis can be directly dragged and dropped on the static material example, and the simple model is rendered through dynamic setting parameters of the blueprint nodes on the dynamic material example.
Fig. 2 is a schematic diagram illustrating a rendering method according to another embodiment of the present application, and as can be seen from fig. 2, in this embodiment, a real terrain model of a scene to be rendered is divided into a land parcel a, a land parcel B, a building community C, and a building community D.
For the plot A, setting simple model parameters A1 for the plot A in a close scene, wherein the simple model parameters A1 are real terrain simple model parameters; in the middle scene, setting simple model parameters A2 for the simple model, wherein the simple model parameters A2 are landmass checkpoint simple model parameters; in a long-term view, the simple model parameters A3 are set, and the simple model parameters A3 are the simple model parameters of the terrain prosthesis. Similarly, for the land parcel B, a simple model parameter B1, a simple model parameter B2 and a simple model parameter B3 are set for the land parcel B, which correspond to a short-range view, a medium-range view and a long-range view respectively, the simple model parameter B1 is a real terrain simple model parameter, the simple model parameter B2 is a land parcel checkpoint simple model parameter, and the simple model parameter B3 is a terrain prosthesis simple model parameter.
For the building community C, setting simple model parameters C1 for the building community C in a close scene, wherein the simple model parameters C1 are monomer simple model parameters; in the middle scene, setting simple model parameters C2 for the medium scene, wherein the simple model parameters C2 are regional simple model parameters; in a long-term view, setting simple model parameters C3 for the building, wherein the simple model parameters C3 are building level simple model parameters; similarly, for the building community D, a simple model parameter D1, a simple model parameter D2 and a simple model parameter D3 are set for the building community D, and respectively correspond to a near view, a medium view and a far view, wherein the simple model parameter D1 is a single simple model parameter, the simple model parameter D2 is a regional model parameter, and the simple model parameter D3 is a building checkpoint simple model parameter.
Generating a combination of a first proxy grid and a first material example of a close view of the parcel A according to the simple model parameter A1, wherein the first proxy grid corresponds to a real terrain simple model; generating a combination of a second proxy grid of the middle view of the parcel A and a second material example according to the simple model parameter A2, wherein the second proxy grid corresponds to the parcel level simple model; and generating a combination of a third theoretical mesh of the perspective of the land parcel A and a third material example according to the simple model parameters A3, wherein the third theoretical mesh corresponds to the terrain prosthesis simple model.
Similarly, a combination of a fourth proxy grid of the close view of the parcel B and a fourth material example is generated according to the simple model parameter B1, wherein the fourth proxy grid corresponds to the real terrain simple model; generating a combination of a fifth proxy grid of the middle view of the parcel B and a fifth material example according to the simple model parameter B2, wherein the fifth proxy grid corresponds to the parcel level simple model; and generating a combination of a sixth proxy grid of the perspective of the land parcel B and a sixth material example according to the simple model parameters B3, wherein the sixth proxy grid corresponds to the terrain prosthesis simple model.
Generating a combination of a seventh agent grid of a close view of the building community C and a seventh material example according to the simple model parameter C1, wherein the seventh agent grid corresponds to a single simple model; generating a combination of an eighth proxy grid of the medium scene of the parcel C and an eighth material example according to the simple model parameter C2, wherein the eighth proxy grid corresponds to the region simple model; and generating a combination of a ninth proxy grid of the perspective of the land parcel C and a ninth material example according to the simplified model parameter C3, wherein the ninth proxy grid corresponds to the simplified model of the building pipe card.
Similarly, generating a combination of a tenth agent grid of the close view of the building community D and a tenth material example according to the simple model parameter D1, wherein the tenth agent grid corresponds to the single simple model; generating a combination of an eleventh proxy grid of the medium scene of the parcel D and an eleventh material example according to the simple model parameter D2, wherein the eleventh proxy grid corresponds to the region simple model; and generating a combination of a twelfth proxy grid of the distant view of the parcel D and a twelfth material example according to the simple model parameter D3, wherein the twelfth proxy grid corresponds to the building pipe card simple model.
Responding to a scene loading instruction, determining a distance range of each land parcel and each building community, determining an agent grid and a material example of each land parcel, and if determining that the land parcel A belongs to a close range, determining that the agent grid and the material example are a combination of a first agent grid and a first material example of the close range of the land parcel A, wherein the first agent grid corresponds to a real terrain simple model; determining that the land parcel B belongs to a distant view distance range, and determining the combination of an agent grid of the land parcel B and a sixth agent grid and a sixth material example of a distant view with a material example of B, wherein the sixth agent grid corresponds to a terrain prosthesis simple model; determining that the building community C belongs to the close range, and determining that the agent grid and the material example are the combination of a seventh agent grid and a seventh material example of the close range of the building community C, wherein the agent grid corresponds to the single simple model; and determining that the building community D belongs to the mesoscopic distance range, and determining that the agent grids and the material examples are the combination of eleventh agent grids and eleventh material examples of the mesoscopic of the building community D, wherein the eleventh agent grids correspond to the region simple model.
And receiving a simplified model of the terrain prosthesis of the scene to be rendered, which is generated by the Houdini software according to the determined proxy grids and the material examples, and rendering the corresponding proxy grids according to the material examples. In this embodiment, in the rendered scene, the close shot is a real terrain simple model of the parcel a and a single simple model of the building community C; the medium scene is a simple model of the area of the building community D; the perspective is a terrain prosthesis simple model of the land parcel B.
The above embodiments are merely exemplary, and in practice, by combining a plurality of plots and a colony forming community, a simple model of real terrain and a simple model of building community (LOD) in a short-term view, a simple model of customs (LevelLOD) in a medium-term view and a simple model of territory (HLOD) in a building community in a short-term view, and a simple model of terrain prosthesis and a simple model of customs (LevelLOD) in a long-term view are obtained.
Fig. 3 shows a schematic structural diagram of a rendering apparatus according to an embodiment of the present application, and as can be seen from fig. 3, the apparatus 300 includes:
a model receiving unit 310, configured to receive a real terrain model according to a scene to be rendered;
the segmentation unit 320 is configured to segment a scene to be rendered into a parcel and a building community;
a parameter receiving unit 330, configured to receive simple model parameters of the land parcel and the building community according to a distance from a camera position;
a generating unit 340, configured to generate, according to the real terrain model and the simple model parameters, a combination of an agent grid and a material example, where the agent grid and the material example correspond to the parcel and the building community, respectively;
and a rendering unit 350, configured to receive the simple model of the terrain prosthesis of the scene to be rendered, and generate a material and a map of the simple model of the terrain prosthesis according to the material example.
In some embodiments of the present application, a parameter receiving unit 330 for determining a first distance of the target parcel from the camera position; if the first distance is within the close range, receiving a first simple model parameter of the target land parcel, wherein the first simple model parameter is a real terrain simple model parameter; if the first distance is within the middle view distance range, receiving a second simple model parameter of the target parcel, wherein the second simple model parameter is a parcel level simple model parameter; and if the first distance is within the long-range distance range, receiving a third simple model parameter of the target land parcel, wherein the third simple model parameter is a terrain prosthesis simple model parameter.
In some embodiments of the present application, the parameter receiving unit 330 is further configured to determine a second distance between the target building community and the camera position; if the second distance is within the close range, receiving a fourth simple model parameter of the target building community, wherein the fourth simple model parameter is a single simple model parameter; if the second distance is within the middle view distance range, receiving a fifth simple model parameter of the target building community, wherein the fifth simple model parameter is an area simple model parameter; and if the second distance is within the long-range distance range, receiving a sixth simple model parameter of the target building community, wherein the sixth simple model parameter is a building level simple model parameter.
In some embodiments of the present application, the generating unit 340 is configured to, for a parcel, if the received simple model parameter is the first simple model parameter, simplify a real terrain model of the parcel according to the real terrain simple model parameter to obtain a real terrain simple model, which is used as a proxy grid corresponding to the parcel, and determine a material example corresponding to the parcel according to the first simple model parameter; if the received simple model parameter is the second simple model parameter, simplifying the real terrain model of the plot according to the plot checkpoint simple model parameter to obtain a plot checkpoint simple model which is used as a proxy grid corresponding to the plot, and determining a material example corresponding to the plot according to the second simple model parameter; and if the received simple model parameter is the third simple model parameter, simplifying the real terrain model of the land parcel according to the terrain prosthesis simple model parameter to obtain a terrain prosthesis simple model which is used as a proxy grid corresponding to the land parcel, and determining a material example corresponding to the land parcel according to the third simple model parameter.
In some embodiments of the application, the generating unit 340 is further configured to, for a building community, if the received simple model parameter is the fourth simple model parameter, simplify each building in the real terrain model of the building community according to the single simple model parameter to obtain a single simple model, which is used as an agent grid corresponding to the building community, and determine a material example corresponding to the building community according to the fourth simple model parameter; if the received simple model parameters are the fifth simple model parameters, grouping and simplifying a plurality of buildings in the real terrain model of the building community according to the regional simple model parameters to obtain regional simple models serving as proxy grids corresponding to the building community, and determining a material example corresponding to the building community according to the fifth simple model parameters; and if the received simple model parameters are the sixth simple model parameters, simplifying the real terrain model of the building community according to the building checkpoint parameters to obtain a building checkpoint simple model serving as a proxy grid corresponding to the building community, and determining a material example corresponding to the building community according to the sixth simple model parameters.
In some embodiments of the present application, the rendering unit 340 is configured to receive a simplified model of the terrain prosthesis, where the simplified model of the terrain prosthesis is obtained by fusing the parcel and the proxy mesh of the building community based on Houdini software; and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example of the land parcel and the material example of the building community.
In some embodiments of the present application, in the above apparatus, the simple mode parameters include: display distance, terrain compression accuracy, material mapping size, highlight and roughness.
It should be noted that the rendering apparatus can implement the rendering method one by one, and details are not repeated here.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application. Referring to fig. 4, at a hardware level, the electronic device includes a processor, and optionally further includes an internal bus, a network interface, and a memory. The Memory may include a Memory, such as a Random-Access Memory (RAM), and may further include a non-volatile Memory, such as at least 1 disk Memory. Of course, the electronic device may also include hardware required for other services.
The processor, the network interface, and the memory may be connected to each other via an internal bus, which may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 4, but that does not indicate only one bus or one type of bus.
And the memory is used for storing programs. In particular, the program may include program code comprising computer operating instructions. The memory may include both memory and non-volatile storage and provides instructions and data to the processor.
The processor reads a corresponding computer program from the nonvolatile memory into the memory and then runs the computer program to form the rendering device on a logic level. The processor is used for executing the program stored in the memory and is specifically used for executing the following operations:
receiving a real terrain model according to a scene to be rendered;
dividing a scene to be rendered into plots and building communities;
receiving simple model parameters of the land parcel and the building community according to the distance between the land parcel and the camera position;
generating a combination of an agent grid and a material example respectively corresponding to the land parcel and the building community according to the real terrain model and the simple model parameters;
and receiving the simple model of the terrain prosthesis of the scene to be rendered, and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example.
The method performed by the rendering apparatus according to the embodiment shown in fig. 3 of the present application may be applied to a processor, or may be implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
The electronic device may further execute the method executed by the rendering apparatus in fig. 3, and implement the function of the rendering apparatus in the embodiment shown in fig. 3, which is not described herein again in this embodiment of the present application.
An embodiment of the present application further provides a computer-readable storage medium storing one or more programs, where the one or more programs include instructions, which, when executed by an electronic device including a plurality of application programs, enable the electronic device to perform the method performed by the rendering apparatus in the embodiment shown in fig. 3, and are specifically configured to perform:
receiving a real terrain model according to a scene to be rendered;
dividing a scene to be rendered into plots and building communities;
receiving simple model parameters of the land parcel and the building community according to the distance between the land parcel and the camera position;
generating a combination of an agent grid and a material example respectively corresponding to the land parcel and the building community according to the real terrain model and the simple model parameters;
and receiving the simple model of the terrain prosthesis of the scene to be rendered, and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A rendering method, comprising:
receiving a real terrain model according to a scene to be rendered;
dividing a scene to be rendered into plots and building communities;
receiving simple model parameters of the land parcel and the building community according to the distance between the land parcel and the camera position;
generating a combination of an agent grid and a material example respectively corresponding to the land parcel and the building community according to the real terrain model and the simple model parameters;
and receiving the simple model of the terrain prosthesis of the scene to be rendered, and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example.
2. The method according to claim 1, wherein receiving the simple model parameters of the parcel and the building community according to the distance from the camera position comprises:
determining a first distance of the target parcel from the camera position;
if the first distance is within the close range, receiving a first simple model parameter of the target land parcel, wherein the first simple model parameter is a real terrain simple model parameter;
if the first distance is within the middle view distance range, receiving a second simple model parameter of the target parcel, wherein the second simple model parameter is a parcel level simple model parameter;
and if the first distance is within the long-range distance range, receiving a third simple model parameter of the target land parcel, wherein the third simple model parameter is a terrain prosthesis simple model parameter.
3. The method according to claim 2, wherein receiving the simple model parameters of the parcel and the building community according to a distance from a camera location further comprises:
determining a second distance between the target building community and the camera position;
if the second distance is within the close range, receiving a fourth simple model parameter of the target building community, wherein the fourth simple model parameter is a single simple model parameter;
if the second distance is within the middle view distance range, receiving a fifth simple model parameter of the target building community, wherein the fifth simple model parameter is an area simple model parameter;
and if the second distance is within the long-range distance range, receiving a sixth simple model parameter of the target building community, wherein the sixth simple model parameter is a building level simple model parameter.
4. The method according to claim 1, wherein the generating a combination of the agent grids and the material instances corresponding to the land parcel and the building community respectively according to the real terrain model and the simple model parameters further comprises:
for a land parcel, if the received simple model parameter is the first simple model parameter, simplifying the real terrain model of the land parcel according to the real terrain simple model parameter to obtain a real terrain simple model which is used as a proxy grid corresponding to the land parcel, and determining a material example corresponding to the land parcel according to the first simple model parameter;
if the received simple model parameter is the second simple model parameter, simplifying the real terrain model of the plot according to the plot checkpoint simple model parameter to obtain a plot checkpoint simple model which is used as a proxy grid corresponding to the plot, and determining a material example corresponding to the plot according to the second simple model parameter;
and if the received simple model parameter is the third simple model parameter, simplifying the real terrain model of the land parcel according to the terrain prosthesis simple model parameter to obtain a terrain prosthesis simple model which is used as a proxy grid corresponding to the land parcel, and determining a material example corresponding to the land parcel according to the third simple model parameter.
5. The method according to claim 1, wherein the generating a combination of the agent grids and the material instances corresponding to the land parcel and the building community respectively according to the real terrain model and the simple model parameters further comprises:
for a building community, if the received simple model parameters are the fourth simple model parameters, simplifying each building in the real terrain model of the building community according to the single simple model parameters to obtain a single simple model as an agent grid corresponding to the building community, and determining a material example corresponding to the building community according to the fourth simple model parameters;
if the received simple model parameters are the fifth simple model parameters, grouping and simplifying a plurality of buildings in the real terrain model of the building community according to the regional simple model parameters to obtain regional simple models serving as proxy grids corresponding to the building community, and determining a material example corresponding to the building community according to the fifth simple model parameters;
and if the received simple model parameters are the sixth simple model parameters, simplifying the real terrain model of the building community according to the building checkpoint parameters to obtain a building checkpoint simple model serving as a proxy grid corresponding to the building community, and determining a material example corresponding to the building community according to the sixth simple model parameters.
6. The method of claim 1, wherein the receiving a simple model of the terrain prosthesis of the scene to be rendered and generating the material and the map of the simple model of the terrain prosthesis according to the material instance comprises:
receiving a simple model of the terrain prosthesis, wherein the simple model of the terrain prosthesis is obtained by fusing the agent grids of the land parcel and the building community based on Houdini software; and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example of the land parcel and the material example of the building community.
7. The method according to any one of claims 1 to 6, wherein the simple mode parameters comprise: display distance, terrain compression accuracy, material mapping size, highlight and roughness.
8. A rendering apparatus, characterized in that the apparatus comprises:
the model receiving unit is used for receiving a real terrain model according to a scene to be rendered;
the segmentation unit is used for segmenting a scene to be rendered into a plot and a building community;
the parameter receiving unit is used for receiving the simple model parameters of the plots and the building communities according to the distance between the plots and the camera position;
the generating unit is used for generating the combination of the agent grids and the material examples respectively corresponding to the land parcel and the building community according to the real terrain model and the simple model parameters;
and the rendering unit is used for receiving the simple model of the terrain prosthesis of the scene to be rendered and generating the material and the mapping of the simple model of the terrain prosthesis according to the material example.
9. An electronic device, comprising:
a processor; and
a memory arranged to store computer executable instructions that, when executed, cause the processor to perform the method of claims 1 to 7.
10. A computer readable storage medium storing one or more programs which, when executed by an electronic device comprising a plurality of application programs, cause the electronic device to perform the method of claims 1-7.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115393494A (en) * | 2022-08-24 | 2022-11-25 | 北京百度网讯科技有限公司 | City model rendering method, device, equipment and medium based on artificial intelligence |
| CN116883575A (en) * | 2023-09-08 | 2023-10-13 | 腾讯科技（深圳）有限公司 | Building group rendering method, device, computer equipment and storage medium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115393494A (en) * | 2022-08-24 | 2022-11-25 | 北京百度网讯科技有限公司 | City model rendering method, device, equipment and medium based on artificial intelligence |
| CN115393494B (en) * | 2022-08-24 | 2023-10-17 | 北京百度网讯科技有限公司 | Urban model rendering method, device, equipment and medium based on artificial intelligence |
| CN116883575A (en) * | 2023-09-08 | 2023-10-13 | 腾讯科技（深圳）有限公司 | Building group rendering method, device, computer equipment and storage medium |
| CN116883575B (en) * | 2023-09-08 | 2023-12-26 | 腾讯科技（深圳）有限公司 | Building group rendering method, device, computer equipment and storage medium |
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