CN114092677A - 3D model conversion optimization method, device and equipment - Google Patents
3D model conversion optimization method, device and equipment Download PDFInfo
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Abstract
The invention relates to a 3D model conversion optimization method, a device and equipment, belonging to the technical field of model conversion, wherein the method, the device and the equipment are used for creating a C # class library project based on visual programming development software, wherein the class library project comprises codes and layouts required for exporting an obj format; operating the class library items to generate dll files; introducing the dll file into preset three-dimensional parametric design software in a plug-in mode; opening rvt-format models based on preset three-dimensional parametric design software to obtain initial models; exporting an initial model through the middleware, storing the initial model into an obj format, and determining the obj format model; and importing the obj format model into target development software based on a preset import rule to obtain the target model. The model file in Revit can be directly imported into Unity3D without 3dsMax, data in the form of rvt exported obj in Revit is stored in a middleware mode, and then the obj exported by the middleware is analyzed in Unity3D to generate a model, process the merged Mesh and display the model.
Description
Technical Field
The invention belongs to the technical field of model transformation, and particularly relates to a 3D model transformation optimization method, device and equipment.
Background
The 3D model conversion plays an important role in the three-dimensional modeling and application process. Taking the Revit software as an example, the Revit software can directly derive the model in fbx format, but the Revit model can cause material loss when being derived to Unity3D in fbx format.
Therefore, how to introduce the model with rvt as suffix into Unity3D without loss is a technical problem to be solved in the prior art.
Disclosure of Invention
The invention provides a method, a device and equipment for converting and optimizing a 3D model, which are used for solving the technical problem that the material loss is caused when a Revit model is exported to Unity3D in an fbx format in the prior art.
The technical scheme provided by the invention is as follows:
in one aspect, a method for optimizing 3D model transformation includes:
creating a class library project of C # based on visual programming development software, wherein the class library project comprises codes and layouts required for exporting the obj format;
operating the class library project to generate a dll file;
the dll file is quoted into preset three-dimensional parametric design software in a plug-in mode;
opening rvt-format models based on the preset three-dimensional parametric design software to obtain initial models;
exporting the initial model through a middleware, storing the initial model in an obj format, and determining the obj format model;
and importing the obj format model into target development software based on a preset import rule to obtain a target model.
Optionally, the creating, based on the visual programming development software, a class library project of C # includes:
referencing a file of the visual programming development software into a class library project;
creating a detail level dialog box;
referencing a texture and material catalog to the class library item;
and coding the class library item to obtain the class library item of C #.
Optionally, the introducing the dll file into a preset three-dimensional parameterization design software in a plug-in form includes:
acquiring an installation directory of the visual programming development software, and creating an addin file in the target;
referencing a directory of the dll file to the addin file;
and creating a unique ID for the directory of the dll file in the addin file.
Optionally, the opening rvt-format model based on the preset three-dimensional parameterized design software to obtain an initial model includes:
determining an additional module in the preset three-dimensional parametric design software, and determining an external tool in the additional module to acquire the addin file;
and acquiring an initial model according to the addin file.
Optionally, the deriving the initial model through middleware, storing the initial model in an obj format, and determining the obj format model includes:
the class library items are quoted based on the middleware, the information of the class library items is read, and the information of the class library items is converted into file information;
outputting the file information as an obj file;
and obtaining a model map, and keeping the model map in the same directory of the obj file, so that a user can view the obj file and the model map according to the target.
Optionally, the method further includes:
and creating a script for analyzing the obj format data based on the target development software so that the target development software analyzes the obj format model.
Optionally, the importing, based on a preset import rule, the obj format model into target development software to obtain a target model includes:
introducing a plug-in MeshBaker required by the needed merged Mesh;
and analyzing the obj format model according to the script for analyzing the obj format data to obtain a target model for a user to check.
Optionally, the visual programming development software comprises microsoft visual studio software; and/or the presence of a gas in the gas,
the preset three-dimensional parameterization design software comprises Autodesk Revit software; and/or the presence of a gas in the gas,
the target development software comprises Unity 3D.
In another aspect, a 3D model transformation optimization apparatus includes: creating an operation module, a reference module, a first acquisition module, a determination module and a second acquisition module;
the creating and running module is used for creating a C # class library project based on visual programming development software, and the class library project comprises codes and layouts required to be used for exporting the obj format; operating the class library project to generate a dll file;
the reference module is used for referencing the dll file to preset three-dimensional parametric design software in a plug-in mode;
the first obtaining module is used for opening rvt-format models based on the preset three-dimensional parameterized design software and obtaining initial models;
the determining module is used for deriving the initial model through middleware, storing the initial model into an obj format and determining the obj format model;
and the second acquisition module is used for importing the obj format model into target development software based on a preset import rule to acquire the target model.
In still another aspect, a 3D model transformation optimization apparatus includes: a processor, and a memory coupled to the processor;
the memory is configured to store a computer program for performing at least any one of the 3D model conversion optimization methods described above;
the processor is used for calling and executing the computer program in the memory.
The invention has the beneficial effects that:
the method, the device and the equipment for optimizing the 3D model conversion are characterized in that a C # class library project is created based on visual programming development software, and the class library project comprises codes and layout required for exporting an obj format; operating the class library items to generate dll files; introducing the dll file into preset three-dimensional parametric design software in a plug-in mode; opening rvt-format models based on preset three-dimensional parametric design software to obtain initial models; exporting an initial model through the middleware, storing the initial model into an obj format, and determining the obj format model; based on a preset import rule, importing the obj format model into target development software to obtain a target model, so as to solve the technical problem that material loss is caused when the Revit model is exported to Unity3D in the fbx format in the prior art. The model file in Revit can be directly imported into Unity3D without 3dsMax, data in the form of rvt exported obj in Revit is stored in a middleware mode, and then the obj exported by the middleware is analyzed in Unity3D to generate a model, process the merged Mesh and display the model.
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 the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a 3D model transformation optimization method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a 3D model transformation optimization apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a 3D model conversion optimization apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In order to solve the technical problem of material loss, in the related technology, 3dsMax is usually used for transferring, a fbx model derived from Revit is opened in 3dsMax, and whether the material is lost or not is checked in 3dsMax, if the material is lost, the material is endowed again; secondary modifications to the model are also required, including: and (4) solving the problems of scattered model merging and model coplanarity, and finally exporting a fbx model file in 3dsMax and putting the fbx model file in Unity 3D. The process is complicated and time consuming.
Based on this, the embodiment of the invention provides a 3D model transformation optimization method, device and equipment.
The first embodiment is as follows:
the embodiment of the invention provides a 3D model transformation optimization method.
In order to directly import the model file in Revit into Unity3D without 3dsMax, data in the form of obj exported by the rvt format in Revit is stored in Unity3D in a middleware mode, and then the model is generated by analyzing obj exported by the middleware, and the merged Mesh is processed and displayed.
Fig. 1 is a schematic flow chart of a 3D model transformation optimization method according to an embodiment of the present invention, and referring to fig. 1, the method according to the embodiment of the present invention may include the following steps:
and S11, creating a C # class library project based on the visual programming development software, wherein the class library project comprises codes and layouts required by exporting the obj format.
Optionally, the visual programming development software comprises microsoft visual studio software; and/or presetting three-dimensional parameterization design software, including Autodesk Revit software; and/or, target development software, including Unity 3D.
In this embodiment, microsoft visual studio software, autodesk review software, Unity3D are used as examples to explain the technical solution of the present invention.
In some embodiments, the class library project of C # is created based on visual programming development software, including: introducing a file of the visual programming development software into a class library project; creating a detail level dialog box; quote the texture, material catalogue to the item of the class library; and coding the class library items to obtain the class library items of C #.
And S12, operating the class library items to generate dll files.
For example, several files of the existing AutodestRevit can be referenced into the class library; creating a detail level dialog box; quote the texture, material catalogue to the class library; encoding a class library file; a dll file is generated for importing into Revit.
And S13, introducing the dll file into the preset three-dimensional parameterized design software in a plug-in mode.
In some embodiments, the introducing the dll file into the preset three-dimensional parameterized design software in a plug-in form includes: acquiring an installation directory of visual programming development software, and creating an addin file in a target; the directory of the dll file is quoted into the addin file; a unique ID is created in the addin file for the directory of the dll file.
For example, it is possible to: finding out an Autodesk Revit installation directory, newly building an addin file, and naming the addin file according to the preference of a user; referencing the dll directory generated in the class library to the file; a unique ID is created in the file.
S14, opening the model in the format rvt based on the preset three-dimensional parameterization design software, and obtaining the initial model.
In some embodiments, opening rvt-formatted models based on the pre-set three-dimensional parametric design software, obtaining an initial model, includes: determining an additional module in preset three-dimensional parametric design software, and determining an external tool in the additional module to acquire an addin file; and acquiring an initial model according to the addin file.
For example, an add-on module is selected in the Revit menu; finding an external tool, if the reference is normal in the second step, clicking a pull-down arrow of the external tool can generate the name of the file just named; clicking the option to pop up a storage dialog box; clicking and popping up a detail grade dialog box after saving; and waiting for export after selection.
And S15, deriving the initial model through the middleware, storing the initial model in the obj format, and determining the obj format model.
In some embodiments, deriving the initial model through middleware and storing as obj format, determining the obj format model comprises: the method comprises the steps that class library items are quoted based on middleware, information of the class library items is read, and the information of the class library items is converted into file information; outputting the file information as an obj file; and acquiring the model map, and keeping the model map in the same directory of the obj file so that the user can view the obj file and the model map according to the target.
For example, the middleware refers to previously written class library contents when exporting, and reads the Bim model coordinate information, the mesh information, the UV information, the mapping information and the like and formats the information into file information; outputting the formatted information to a special obj suffix file in a specific format; obtaining a model map, and simultaneously saving the model map and the obj data file in the same directory; after the saving is completed, the related map and the data file can be viewed in the directory.
And S16, importing the obj format model into the target development software based on a preset import rule, and acquiring the target model.
In some embodiments, further comprising: and creating a script for analyzing the obj format data based on the target development software so that the target development software analyzes the obj format model.
In some embodiments, importing the obj format model into the target development software based on a preset import rule, and obtaining the target model includes: introducing a plug-in MeshBaker required by the needed merged Mesh; and analyzing the obj format model according to the script for analyzing the obj format data to obtain the target model so as to enable the user to check.
For example, create a parse obj data format script; an externally exported obj data format file can be selected by encoding; the code analyzes obj data in a quantitative loading mode; whether mesh is combined or not can be selected, and the mesh can be imported after the selection is finished; the analysis script also comprises a function of saving the mesh, and can be directly applied at a later stage; the data in obj format is imported through the code edited in Unity3D, and after the data is imported, the user can see the converted model in the Unity3D editor and have the corresponding map and Mesh, so that the user can fine-tune the material for better display.
The 3D model conversion optimization method provided by the embodiment of the invention is based on visual programming development software, and a C # class library project is created, wherein the class library project comprises codes and layout required for exporting the obj format; operating the class library items to generate dll files; introducing the dll file into preset three-dimensional parametric design software in a plug-in mode; opening rvt-format models based on preset three-dimensional parametric design software to obtain initial models; exporting an initial model through the middleware, storing the initial model into an obj format, and determining the obj format model; based on a preset import rule, importing the obj format model into target development software to obtain a target model, so as to solve the technical problem that material loss is caused when the Revit model is exported to Unity3D in the fbx format in the prior art. The model file in Revit can be directly imported into Unity3D without 3dsMax, data in the form of rvt exported obj in Revit is stored in a middleware mode, and then the obj exported by the middleware is analyzed in Unity3D to generate a model, process the merged Mesh and display the model.
Example two:
based on a general inventive concept, the embodiment of the present invention further provides a 3D model transformation optimization apparatus.
Fig. 2 is a schematic structural diagram of a 3D model transformation optimization apparatus according to an embodiment of the present invention, and referring to fig. 2, the apparatus according to the embodiment of the present invention may include the following structures: a creation execution module 21, a reference module 22, a first acquisition module 23, a determination module 24 and a second acquisition module 25.
The creating and running module 21 is used for creating a class library project of C # based on visual programming development software, wherein the class library project comprises codes and layouts required to be used for exporting the obj format; operating the class library items to generate dll files;
the reference module 22 is used for referencing the dll file to the preset three-dimensional parameterized design software in a plug-in mode;
the first obtaining module 23 is configured to open a model in rvt format based on preset three-dimensional parameterized design software, and obtain an initial model;
the determining module 24 is configured to derive the initial model through the middleware, store the initial model in the obj format, and determine the obj format model;
and a second obtaining module 25, configured to import the obj format model into the target development software based on a preset import rule, and obtain the target model.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The 3D model conversion optimization method and device provided by the embodiment of the invention are based on visual programming development software, and a C # class library project is created, wherein the class library project comprises codes and layout required for exporting the obj format; operating the class library items to generate dll files; introducing the dll file into preset three-dimensional parametric design software in a plug-in mode; opening rvt-format models based on preset three-dimensional parametric design software to obtain initial models; exporting an initial model through the middleware, storing the initial model into an obj format, and determining the obj format model; based on a preset import rule, importing the obj format model into target development software to obtain a target model, so as to solve the technical problem that material loss is caused when the Revit model is exported to Unity3D in the fbx format in the prior art. The model file in Revit can be directly imported into Unity3D without 3dsMax, data in the form of rvt exported obj in Revit is stored in a middleware mode, and then the obj exported by the middleware is analyzed in Unity3D to generate a model, process the merged Mesh and display the model.
Example three:
based on a general inventive concept, an embodiment of the present invention further provides a 3D model transformation optimization apparatus.
Fig. 3 is a schematic structural diagram of a 3D model transformation optimization apparatus according to an embodiment of the present invention, and referring to fig. 3, the 3D model transformation optimization apparatus according to the embodiment of the present invention includes: a processor 31, and a memory 32 connected to the processor.
The memory 32 is used for storing a computer program, and the computer program is at least used for the 3D model transformation optimization method described in any of the above embodiments;
the processor 31 is used to invoke and execute the computer program in the memory.
Embodiments of the present invention also provide a storage medium based on one general inventive concept.
A storage medium storing a computer program which, when executed by a processor, implements the steps of the above-described 3D model transformation optimization method.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A3D model transformation optimization method is characterized by comprising the following steps:
creating a class library project of C # based on visual programming development software, wherein the class library project comprises codes and layouts required for exporting the obj format;
operating the class library project to generate a dll file;
the dll file is quoted into preset three-dimensional parametric design software in a plug-in mode;
opening rvt-format models based on the preset three-dimensional parametric design software to obtain initial models;
exporting the initial model through a middleware, storing the initial model in an obj format, and determining the obj format model;
and importing the obj format model into target development software based on a preset import rule to obtain a target model.
2. The method of claim 1, wherein the creating a class library project of C # based on the visual programming development software comprises:
referencing a file of the visual programming development software into a class library project;
creating a detail level dialog box;
referencing a texture and material catalog to the class library item;
and coding the class library item to obtain the class library item of C #.
3. The method of claim 1, wherein the referencing the dll file into a preset three-dimensional parametric design software in a plug-in form comprises:
acquiring an installation directory of the visual programming development software, and creating an addin file in the target;
referencing a directory of the dll file to the addin file;
and creating a unique ID for the directory of the dll file in the addin file.
4. The method according to claim 3, wherein the opening rvt-formatted model based on the preset three-dimensional parameterized design software, and obtaining an initial model comprises:
determining an additional module in the preset three-dimensional parametric design software, and determining an external tool in the additional module to acquire the addin file;
and acquiring an initial model according to the addin file.
5. The method of claim 1, wherein the deriving the initial model through middleware and storing the initial model in obj format, and determining the obj format model comprises:
the class library items are quoted based on the middleware, the information of the class library items is read, and the information of the class library items is converted into file information;
outputting the file information as an obj file;
and obtaining a model map, and keeping the model map in the same directory of the obj file, so that a user can view the obj file and the model map according to the target.
6. The method of claim 1, further comprising:
and creating a script for analyzing the obj format data based on the target development software so that the target development software analyzes the obj format model.
7. The method according to claim 6, wherein the importing the obj format model into target development software based on a preset import rule to obtain a target model comprises:
introducing a plug-in MeshBaker required by the needed merged Mesh;
and analyzing the obj format model according to the script for analyzing the obj format data to obtain a target model for a user to check.
8. The method of claim 1, wherein the visualization programming development software comprises microsoft visual studio software; and/or the presence of a gas in the gas,
the preset three-dimensional parameterization design software comprises Autodesk Revit software; and/or the presence of a gas in the gas,
the target development software comprises Unity 3D.
9. A 3D model transformation optimization apparatus, comprising: creating an operation module, a reference module, a first acquisition module, a determination module and a second acquisition module;
the creating and running module is used for creating a C # class library project based on visual programming development software, and the class library project comprises codes and layouts required to be used for exporting the obj format; operating the class library project to generate a dll file;
the reference module is used for referencing the dll file to preset three-dimensional parametric design software in a plug-in mode;
the first obtaining module is used for opening rvt-format models based on the preset three-dimensional parameterized design software and obtaining initial models;
the determining module is used for deriving the initial model through middleware, storing the initial model into an obj format and determining the obj format model;
and the second acquisition module is used for importing the obj format model into target development software based on a preset import rule to acquire the target model.
10. A 3D model transformation optimization apparatus, comprising: a processor, and a memory coupled to the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the 3D model conversion optimization method of any one of claims 1-8;
the processor is used for calling and executing the computer program in the memory.
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