CN113626902A - Material modeling system based on PBR material - Google Patents
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Abstract
The invention discloses a material modeling system based on PBR material, comprising: the material manufacturing module is used for carrying out visual PBR material parameter adjustment on the material template so as to manufacture a new PBR material; the real-time rendering and previewing module is used for performing online real-time rendering and previewing an online rendering effect in real time by applying the new PBR material; the data conversion module is used for converting PBR material parameters corresponding to the new PBR material adopted by the online real-time rendering engine to offline rendering parameters adopted by the offline rendering engine and aligning a light field adopted by the online real-time rendering engine and a light field required to be adopted by the offline rendering engine; the off-line rendering and previewing module is used for off-line rendering by adopting the off-line rendering parameters and the light field required to be adopted so as to obtain and preview an off-line rendering effect; the confirmation module confirms the designed new PBR material by comparing that the online rendering effect is the same as the offline rendering effect; the material modeling system can improve the material modeling efficiency and guarantee the material modeling quality.
Description
Technical Field
The invention belongs to the field of graphics, and particularly relates to a material modeling system based on PBR materials.
Background
With the popularization of VR concepts, rendering effect maps have become a widely accepted terminal visual display medium, and with the improvement of computer performance, the production cost of rendering maps is reduced, and rendering technologies have been widely used in various industries. The material is used as an important material part in rendering, and the reality of the material determines the upper limit of the rendering effect.
Modelers typically set a large number of material parameters to produce a material and continuously render it to verify the material effect. The material parameter is very abundant and complicated, need the mixture of multiple material again to reach sometimes in order to realize special material, consequently in the material manufacture process, needs the modeler to have abundant experience, and the technical threshold is higher, just can guarantee to render the effect that the material is close to the physical world as far as possible through debugging repeatedly. In general, a modeler collects material materials through different channels and modifies the material materials to improve the efficiency of manufacturing the material.
At present, software for modeling materials generally comprises local material modeling software and cloud material modeling software, and different material systems such as Vrsence and PBR can be created. When the rendering scheme represents the material, a local rendering mode and a cloud rendering mode are provided, and different material systems are usually supported. For the whole process of creating and rendering to express the material, designers mainly use modeling tools such as 3dsMax and Substance Designer to model the material based on different material systems, and when the modeled material is used in the design scheme, the VRay rendering plug-in is used to render the design scheme. The mainstream material modeling process needs a talent with higher technical foundation and modeling experience to operate, and needs a computer with higher configuration to repeatedly render to check whether the effect reaches the expectation, so that a great deal of rendering resource waste and human resource consumption are caused in the process, and meanwhile, the material effect can not be ensured to meet the expectation.
Using local material modeling software, very personalized and professional materials can be created, but generally there are the following problems: (1) in the material manufacturing process of traditional local material software such as 3dmax or substance designer and the like, a large number of rich and complex parameters are difficult to understand, the problem that a plurality of material nodes are mixed possibly when the complex material is manufactured is solved, and the like, so that the manufactured material has a high technical threshold, and meanwhile, a modeler needs to collect materials and modify the parameters to achieve the purpose of effect improvement, which causes the traditional material modeling mode to have different standards, low process efficiency and high threshold; (2) modeling through local material software, repeated rendering is also required by higher computer configuration so as to check that the rendering effect accords with the effect of the physical world, the hardware cost is higher, and meanwhile, the time is very long; (3) the PBR material is manufactured by using local software such as Substance designer and the like, the effect is verified through real-time rendering, but when the material is applied in a design scheme, the material effect is often expressed by matching a VRay offline rendering engine, the material effect is split in a user experience flow, the called real-time material effect is difficult to be consistent with the final offline rendering, and the effect is found to be inconsistent during application.
The above-mentioned material modeling is carried out through local material software, because technology and experience threshold that its parameter is complicated difficult to transfer and leads to are too high, hardware cost is high, transfer material process inefficiency time-consuming, and real-time rendering and off-line rendering's effect is difficult to unify, has restricted the commercial of rendering technique.
Aiming at online cloud material modeling software, the modeling process lacks flexibility, is very inefficient and consumes rendering resources. If the user wants to adjust the material parameters to achieve the effect desired by the user, the effect cannot be previewed in real time, the parameter adjusting process becomes extremely painful, offline rendering is required for each preview, a large amount of waiting time is increased, and a large amount of rendering server resources are wasted.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a material modeling system based on PBR material, which improves the material modeling efficiency by combining online material rendering, material conversion, and offline scene rendering of application material, and simultaneously makes the material modeling effect visible in real time, and can ensure that the offline rendering effect is consistent with the online rendering effect.
An embodiment provides a material modeling system based on PBR material, including:
the material manufacturing module is used for carrying out visual PBR material parameter adjustment on the material template so as to manufacture a new PBR material;
the real-time rendering and previewing module is used for applying the new PBR material to perform online real-time rendering and previewing an online rendering effect in real time;
the data conversion module is used for converting PBR material parameters corresponding to the new PBR material adopted by the online real-time rendering engine to offline rendering parameters adopted by the offline rendering engine and aligning a light field adopted by the online real-time rendering engine and a light field required to be adopted by the offline rendering engine;
the off-line rendering and previewing module is used for performing off-line rendering by adopting the off-line rendering parameters and the light field required to be adopted so as to obtain and preview an off-line rendering effect;
the confirmation module is used for confirming the designed new PBR material when the comparison result of the online rendering effect is the same as the comparison result of the offline rendering effect;
and the storage module is used for storing the confirmed new PBR material.
In one embodiment, the material modeling system further comprises a material template library for storing material templates; the confirmed new PBR material is saved in a material template library to be used as a material template;
the material template edited by the material making module is from a material template library, a blank material template or an uploaded material chartlet.
In one embodiment, in the material manufacturing module, adjustable PBR material parameters corresponding to the material template are opened according to preset conditions for different material templates, wherein the PBR material parameters include material size, reflection map, diffuse reflection map, refraction map, normal map, concave-convex map, transparency map, glossiness map, self-luminous map, hierarchical channel map, and adjustment parameters corresponding to each map.
In one embodiment, in the real-time rendering and previewing module, a WebGL technology is adopted to render the new PBR material to a corresponding carrier model on line in real time; selecting different carrier models aiming at different types of new PBR materials;
in one embodiment, in the real-time rendering and previewing module, when the new PBR material is applied for online real-time rendering, the environment map file is adopted to show the rendering shadow effect of the new PBR material.
In one embodiment, in the real-time rendering and previewing module, the illumination adjusting function is opened to check the rendering shadow effect of the new PBR material for adjusting illumination;
when previewing the online rendering effect, the method has the editing function of the online rendering effect.
In one embodiment, in the data conversion module, a data conversion mode corresponding to the offline rendering engine is preset according to the offline rendering engine, and then the PBR material parameter used for rendering by the online real-time rendering engine is converted into the offline rendering parameter used by the offline rendering engine according to the data conversion mode.
In one embodiment, in the offline rendering and previewing module, an offline rendering engine arranged at a cloud end performs offline rendering of a plurality of scenes according to received offline rendering parameters and light field information, outputs an offline rendering image and transmits the offline rendering image to a webpage end for previewing; the method has the editing function of the offline rendering graph.
In one embodiment, in the determining module, by comparing the online rendering effect with the offline rendering effect, it is determined whether the rendering effects of the new PBR material in the carrier model and the multi-scene are the same, and if so, the new PBR material is determined and stored.
The material modeling system provided by the embodiment has the beneficial effects that:
through the design module and the real-time rendering and previewing module, the PBR material design realized by simply and controllably adjusting the PBR material parameters at the webpage end is realized, the online real-time rendering and previewing rendering effect is performed on the new PBR material designed by applying the WebGL technology of the webpage end, the material manufacturing technology, experience threshold and equipment hardware requirements are reduced, the material manufacturing is popular, ordinary people can express own material commodities, the commercialization capacity is greatly expanded, and meanwhile, the material manufacturing efficiency is greatly improved;
through data conversion module and off-line rendering and preview module, the material effect of guaranteeing real-time rendering does not have obvious difference with the rendering effect of appointed off-line rendering, and the real-time effect of the PBR material of user design can be regarded as rendering effect reference completely to help the designer to carry out real-time online material modeling at the high in the clouds, need not to use the computer of high configuration to carry out the test of rendering, and can feed back parameter adjustment effect completely in real time, reach the target that promotes material modeling efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a material modeling system based on PBR material according to an embodiment;
FIG. 2 is a flowchart illustrating an application of the PBR material modeling system according to an embodiment;
FIG. 3 is a flow diagram of data conversion provided by an embodiment;
fig. 4(a) and 4(b) are diagrams for rendering effects of the new PBR material in the carrier model and the scene, respectively, according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
In order to simplify the process of manufacturing the material, facilitate the manufacturing of the material by people of any level, and improve the efficiency and quality of manufacturing the material, the embodiment provides a material modeling system based on the PBR material. The material modeling system is used as an on-line material manufacturing tool product, and through a visual interactive interface, a user can start from a material template or a blank material template provided by the system, and adjust parameters and preview the real-time rendering effect of the PBR material, so that the user can very simply, efficiently and flexibly create the PBR material of the user, the difficulty of material modeling can be effectively reduced, the material modeling can be mastered by common people, the universality is higher, and the commercial space and the value of the material modeling system are greatly improved; by combining the real-time rendering technology with the offline rendering technology, the material modeling method effectively shortens the time cost of material modeling, enables the material modeling process not to depend on blind guess and experience any more, and ensures that the material effect is in line with expectation when the parameter adjusting process is seen. By the material modeling system method, the cost for manufacturing one material can be instantly shortened from a few hours to a few minutes.
FIG. 1 is a schematic structural diagram of a material modeling system based on PBR material according to an embodiment. As shown in FIG. 1, the material modeling system 100 based on PBR material provided by the embodiment includes a material making module 110, a real-time rendering and previewing module 120, a data transformation module 130, an offline rendering and previewing module 140, a confirmation module 150, a storage module 160 and a material template library 170.
The material making module 110 is loaded on the interactive interface of the web page, and performs visual PBR material parameter adjustment on the selected material template through the presented material making tool to make a new PBR material. The user performs interactive operation through the material making tool provided by the material making module 110, adjusts the corresponding attribute parameters and the type of the map of the material, and realizes the material making process.
In the material making module 110, the parameter adjusting function is customized according to the business requirements, and for different material templates, the user can achieve the required effect by adjusting a small number of parameters according to the preset open adjustable PBR material parameters corresponding to the material templates without starting from the beginning in the face of complicated material parameters. The PBR material parameters comprise material size, reflection mapping, diffuse reflection mapping, refraction mapping, normal mapping, concave-convex mapping, transparency mapping, glossiness mapping, self-luminous mapping, layered channel mapping, adjustment parameters corresponding to each mapping and the like, wherein some complex PBR material parameters need special technical treatment. And performing pixel-level editing operation on the original material template according to the color correction parameters corresponding to the diffuse reflection mapping, such as color superposition of the positive film lamination, hue, saturation, lightness editing and the like. For the concave-convex mapping, the concave-convex proportion parameter needs to be adjusted.
In embodiments, the material template being edited is from a library of material templates, a blank material template, or an uploaded material map. And aiming at the blank material template, providing full parameter adjustment for a user to model the material from 0.
For example, the embodiment provides a dark green thin flax template for a thin flax material, wherein flax texture, dark green texture map and concave-convex texture of the material are preset in the template. Meanwhile, the parameters which are opened to the user and adjustable comprise: the diffuse reflection has two modes of mapping and color selection, and the mapping opens hue, saturation, high-level gamma contrast and high-level brightness and is used for adjusting the color of the diffuse reflection mapping; the reflection also has two modes of mapping and color, and the mapping can adjust the brightness; the reflection glossiness has two modes of mapping and numerical value, and the brightness can be adjusted by mapping; the concave-convex proportion can be changed by concave-convex; the material effect can be adjusted by changing the mapping and adjusting the parameters, so that the fine flax material of the avocado green meeting the requirements can be obtained.
To more complicated mixed material, the embodiment not only provides single material as preset material template, but also provides some mixed material for user adjustment. Each child material node provided by the template may be adjusted separately and blended again. For example, the embodiment provides a velvet material formed by mixing two layers of different materials based on a preset layered channel map. The velvet material is preset with diffuse reflection mapping, reflection glossiness mapping, concave-convex mapping and layered channel mapping, and the mapping can be replaced and preset with Fresnel effect. The velvet and the thin flax are basically the same in material node, and the difference is that the velvet is a mixed material, and can support the mixed effect of two materials through the layering channel. Both materials have the same node, and the layering channel can be replaced or the node parameter can be changed to modify the material effect. Different mixed velvet material effects can be realized by respectively adjusting the effects of the two layers of materials and then based on a default or self-defined layered channel diagram.
The real-time rendering and previewing module 120 is configured to apply the new PBR material for online real-time rendering and previewing an online rendering effect in real time. Specifically, the material effect is rendered in real time by adopting a WebGL technology on the basis of the manufactured new PBR material. In the manufacturing process, after the user selects the material template, the real-time rendering and previewing module 120 loads the carrier model to display the material effect, and in the material parameter adjusting process, the WebGL technology is adopted to render the new PBR material on the corresponding carrier model in real time on line so as to display the material effect in real time, so that the user can judge whether the effect requirement is met.
In the embodiment, different carrier models are selected for different types of new PBR materials, so that the PBR materials of different types can be accurately displayed, a cloth model can be selected for materials such as yarn, cloth and leather, a ball model can be selected for metal materials, and a plate or cube model can be selected for stone materials, wood plate materials and the like.
In the real-time rendering and previewing module 120, when the new PBR material is applied to perform online real-time rendering, the environment map file is used to show the rendering shadow effect of the new PBR material. Aiming at different materials and corresponding carrier models, different light fields are adopted for rendering to reasonably display the material effect, namely different environment map files are adopted to display different rendering shadow effects. And displaying the obtained online rendering effect on the webpage end in real time.
In the real-time rendering and previewing module 120, an illumination adjusting function is also opened to check the rendering shadow effect of the new PBR material for adjusting illumination. When previewing the online rendering effect, the method has an editing function of the online rendering effect, wherein the editing function includes but is not limited to undo, recovery, zooming and visual angle resetting, so as to realize multi-angle and multi-scale viewing of the online rendering effect.
The data conversion module 130 is configured to convert the PBR material parameter corresponding to the new PBR material adopted by the online real-time rendering engine to an offline rendering parameter adopted by the offline rendering engine, so as to verify whether the offline rendering effect matches the online rendering effect.
In the embodiment, according to different offline rendering engines, a data conversion mode corresponding to the offline rendering engine is preset, and then the PBR material parameters used for rendering by the online real-time rendering engine are converted into the offline rendering parameters used by the offline rendering engine according to the data conversion mode corresponding to the offline rendering engine.
Taking the VRay rendering engine as an example, the parameter conversion function implemented by the data conversion module 130 is described. The basic parameters of PBR materials recognized in the industry can be classified into two main categories, metallic-roughness-workflow and special-gloss-workflow, and the difference between the two basic parameters in the illumination model is: the former is base color, Metallic, Specular, the latter is Diffuse, Reflect, the rest physical parameters can be intercommunicated, and from the code of illumination realization, the material of Metallic-rough-workflow can be mapped into specific-gloss-workflow without damage.
Metallic-rough-workflow is generally used in the industry more, because it can truly restore the real-world material effect, and the system follows the energy conservation in principle, avoiding the occurrence of material which does not exist in reality. Although the VRay rendering engine is a black box, it is similar to the PBR parameter system of the specific-workflow, so in practical application, as shown in fig. 3, the PBR materials of the two workflows are compatible:
the formula used for parameter conversion is:
Diffuse＝BaseColor×(1.0-Metallic)
Reflect＝BaseColor×Metallic+a×Specular×(1.0-Metallic)
where a is an adjustment weight, preferably 0.07 to 0.09, and further, a is 0.08.
An energy conservation algorithm is applied in the parameter mapping conversion process, effect comparison verification is carried out on a final result, and the implementation rendering result and the off-line rendering result can be ensured to be in one-to-one correspondence.
In the data conversion module 130, in order to ensure that the online real-time rendering effect of the material is the same as the offline rendering effect, mapping of the light field is performed while parameter conversion is performed, that is, the light field adopted by the online real-time rendering engine and the light field adopted by the offline rendering engine need to be aligned.
After the material modeling is completed, the user may select an offline rendering preview to verify whether the real-time material modeling effect matches the offline rendering effect. On the basis, the offline rendering and previewing module 140 is configured to perform offline rendering by using the offline rendering parameters and the converted light field, so as to obtain and preview an offline rendering effect. In the embodiment, when a user is satisfied with the online real-time rendering effect of the prepared PBR material, an offline rendering button is triggered, an offline rendering engine arranged at the cloud end performs preset offline rendering of a plurality of scenes according to the received offline rendering parameters and the light field information and stores the preset offline rendering, and simultaneously outputs an offline rendering graph and transmits the offline rendering graph to a webpage end for previewing so as to inform the user of the expression form of the final effect of material modeling in the offline rendering.
The offline rendering and preview module 140 also has an editing function for the offline rendering graph. Editing functions include, but are not limited to, undo, resume, zoom, and view angle reset, among others, to enable multi-angle and multi-scale viewing of offline rendering effects.
The confirmation module 150 is carried on the interactive interface of the web page end, and when the comparison result of the online rendering effect is the same as the comparison result of the offline rendering effect, the satisfactory new PBR material is confirmed, and the satisfactory material can be selected to be stored for subsequent material manufacturing and use.
The storage module 160 is used for storing the confirmed new PBR material. Specifically, the adjusted material is stored and enters a user material library, and then the user material library can be used in a design scheme; and saving the edited material as a material template, entering a material template private library of the user as a personalized and customized material template, and then creating a new material by the user based on the material template.
The material template library 170 is used to store material templates. The material template library presets various types of PBR material templates, uses visual diagrams, enables users to directly select the material templates close to the required effect of the users to start manufacturing, and the material template library 170 can continuously supplement the material templates, is gradually enriched, and enables the starting points of manufacturing materials to be simpler. Meanwhile, modes such as label screening, searching and recommending similar material templates are provided, so that a user can find the required material template more easily. In a word, the material template library 170 enables users to start from the material templates in the library, so that the process of collecting materials at four places is omitted, a small number of parameters can be directly modified by using the templates, and the method is simple and efficient.
FIG. 2 is a flowchart illustrating an application of the material modeling system based on PBR material according to an embodiment. As shown in fig. 2, when a user uses the material modeling system, the user enters an interactive interface through a web page to use a material making tool, starts to use a material template or a blank template provided by the system, edits PBR material parameters of an effect to be expressed through a material making module, and in a WebGL-based real-time rendering and previewing module, previews the effect while adjusting the effect, and after satisfaction, renders the material effect through an offline rendering and previewing module to confirm, and in the process, a background calls a data conversion module to convert the PBR parameters into offline rendering parameters. After the user confirms, the manufactured material can be directly saved and used in the design of a scheme at a webpage end, or directly saved as a material template, and then a new material can be further manufactured based on the template.
When the material modeling system provided by the embodiment is applied, a user logs in a webpage end product, and makes a material on the interactive interface by using the functions provided by the modules provided by the system. In the product form, the material template library, the preview interface of real-time rendering, the material making module and the function of off-line rendering are combined and provided for the user. All the modules are carried on a webpage end, and meanwhile, offline rendering is also completed through the cloud rendering server cluster, so that a user does not need a very high-performance computer to use the method and the system. In the modeling system, common and uncomplicated materials such as plates, tiles, cloth, leather and the like are preset in the system, and basic material templates are preset in the system. The user can edit the parameters simply based on the template, and directly make the required material. Taking leather as an example, a basic flax curtain material template is provided, and a user only needs to call the flax curtain material template. According to customization of business requirements, the system opens a diffuse reflection mapping and color correction thereof, a reflection mapping and parameters, concave-convex mapping and concave-convex proportion and other parameters for users to adjust. The user can check the real-time rendering effect of the adjustment parameters in the real-time rendering and previewing module by uploading the diffuse reflection map, the concave-convex texture and the reflection map of the cortex of the user and properly adjusting the parameters, as shown in fig. 4(a), after satisfaction, the scene is rendered offline through the offline rendering and previewing module, as shown in fig. 4(b), the final BPR material is confirmed and adjusted and stored by comparing the map 4(a) with the map 4(b) through the confirming module, the manufactured material is stored or stored as a new cortex material template, and then the new material is continuously manufactured.
The material modeling system provided by the embodiment realizes PBR material design by simply and controllably adjusting PBR material parameters at a webpage end through a design module and a real-time rendering and previewing module, and performs online real-time rendering and previewing rendering effects by using a new PBR material designed by applying WebGL technology at the webpage end, so that the material effect of final offline rendering is ensured to meet expectations, the requirements of material manufacturing technology, experience threshold and equipment hardware are reduced, the material manufacturing benefits are realized, common people can express own material commodities, the commercialization capacity is greatly expanded, and meanwhile, the material manufacturing efficiency is greatly improved;
through data conversion module and off-line rendering and preview module, let the user directly proofread the off-line effect of rendering, get through the whole user flow link, the material effect of guaranteeing real-time rendering does not have obvious difference with the rendering effect of appointed off-line rendering, the real-time effect of the PBR material of user design can regard as rendering effect reference completely, thereby help the designer to carry out real-time online material at the high in the clouds and model, need not to use the computer of high configuration to carry out the test of rendering, and can feedback parameter adjustment effect in real time completely, reach the target that promotes material modeling efficiency.
The whole material modeling system combines the real-time rendering and the off-line rendering of the PBR, the on-line full flow of the material from the manufacturing to the use to the rendering expression is opened, and the user flow is simpler and more direct.
The above-mentioned embodiments are intended to illustrate the technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only the most preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, additions, equivalents, etc. made within the scope of the principles of the present invention should be included in the scope of the present invention.
Claims (9)
1. A material modeling system based on PBR material, comprising:
the material manufacturing module is used for carrying out visual PBR material parameter adjustment on the material template so as to manufacture a new PBR material;
the real-time rendering and previewing module is used for applying the new PBR material to perform online real-time rendering and previewing an online rendering effect in real time;
the data conversion module is used for converting PBR material parameters corresponding to the new PBR material adopted by the online real-time rendering engine to offline rendering parameters adopted by the offline rendering engine and aligning a light field adopted by the online real-time rendering engine and a light field required to be adopted by the offline rendering engine;
the off-line rendering and previewing module is used for performing off-line rendering by adopting the off-line rendering parameters and the light field required to be adopted so as to obtain and preview an off-line rendering effect;
the confirmation module is used for confirming the designed new PBR material when the comparison result of the online rendering effect is the same as the comparison result of the offline rendering effect;
and the storage module is used for storing the confirmed new PBR material.
2. The PBR material-based material modeling system of claim 1, further comprising a material template library for storing material templates; the confirmed new PBR material is saved in a material template library to be used as a material template;
the material template edited by the material making module is from a material template library, a blank material template or an uploaded material chartlet.
3. The material modeling system based on PBR material of claim 1, wherein in the material preparation module, adjustable PBR material parameters corresponding to the material templates are opened according to preset conditions for different material templates, wherein the PBR material parameters include material size, reflection mapping, diffuse reflection mapping, refraction mapping, normal mapping, concave-convex mapping, transparency mapping, glossiness mapping, self-luminous mapping, hierarchical channel mapping, and adjustment parameters corresponding to each mapping.
4. The PBR-based material modeling system of claim 1, wherein in the real-time rendering and previewing module, a WebGL technique is used to render new PBR materials on-line in real-time to the corresponding carrier model; and selecting different carrier models aiming at different types of new PBR materials.
5. The material modeling system based on PBR material of claim 1, wherein in the real-time rendering and previewing module, when the new PBR material is applied for online real-time rendering, the environment map file is adopted to show the rendering shadow effect of the new PBR material.
6. The PBR material-based material modeling system of claim 1, wherein in the real-time rendering and preview module, an illumination adjustment function is opened to view the rendering shadow effect of the new PBR material adjusting illumination;
when previewing the online rendering effect, the method has the editing function of the online rendering effect.
7. The PBR-based material modeling system of claim 1, wherein in the data conversion module, a data conversion method corresponding to the offline rendering engine is preset according to the offline rendering engine, and then the PBR material parameters for rendering by the online real-time rendering engine are converted into the offline rendering parameters for the offline rendering engine according to the data conversion method.
8. The material modeling system based on the PBR material of claim 1, wherein in the offline rendering and previewing module, an offline rendering engine arranged at a cloud end performs offline rendering of a plurality of scenes according to the received offline rendering parameters and the light field information, outputs an offline rendering map and transmits the offline rendering map to a webpage end for previewing; the method has the editing function of the offline rendering graph.
9. The material modeling system based on PBR material of claim 1, wherein in the determining module, by comparing the online rendering effect and the offline rendering effect, it is determined whether the rendering effects of the new PBR material in the carrier model and the multi-scene are the same, and when the rendering effects are the same, the new PBR material is determined and stored.
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