CN113032497A - Method for realizing visual simulation of railway track engineering based on UE4 - Google Patents
Method for realizing visual simulation of railway track engineering based on UE4 Download PDFInfo
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Abstract
The invention discloses a method for realizing visual simulation of railway track engineering based on UE4, which comprises the following steps: 3DMAX completes the assembly of the three-dimensional model and the components of the track engineering of the high-speed railway line; and B: and importing the three-dimensional model into the UE4, and finishing the visual simulation of the high-speed railway line track engineering by using a blueprint. The method realizes an excellent visual effect on the high-speed railway line track engineering by utilizing the powerful rendering capability of the UE4 engine, and realizes the purposes of quick and efficient visualization of the high-speed railway line track engineering by combining 3DMAX to realize the visual simulation of the engineering in the UE 4.
Description
Technical Field
The invention relates to the technical field of virtual reality, in particular to a method for realizing visual simulation of railway track engineering based on UE 4.
Background
The high-speed railway track engineering is generally arranged in a long strip shape, the engineering quantity is generally large, and a two-dimensional plane model is insufficient to objectively express the general engineering situation. As a main engineering of the railway, visual simulation needs to be carried out in the process of scheme design and track maintenance.
The engineering visualization is that the engineering space environment and the design scheme are visually simulated through the graphics of a computer, the actual situation is objectively and clearly expressed, the design idea can be combed, or the design intention can be accurately and quickly transmitted to a third party. It is also a scientific method using vision for management.
The high-speed railway line engineering is important infrastructure and driving key equipment of the high-speed railway line engineering, and maintenance and repair of the high-speed railway line engineering are important guarantees for realizing high-speed, high-density, safe and stable running of trains. When a first-class high-speed railway line project in the world is built, how to establish and perfect the organization and management of a maintenance mode on the basis of a traditional maintenance management mode, provide an efficient infrastructure maintenance technology, ensure the high speed, comfort and safety of train operation, and solve the problem that high-speed railmen in China need to think and explore. The rail is the basis of the high-speed safe and stable running of the train, and the quality of the rail directly determines the safety and the stability of the running of the train. The three-dimensional visualization technology of live-action operation, which integrates emerging technologies such as computer graphic images, information, multimedia, human-computer interaction and the like, is gradually applied to various engineering fields along with the development of computer hardware in years. In the aspect of rail transit, live-action operation three-dimensional visualization is initially applied to virtual driving training and is gradually extended to three-dimensional demonstration of railway operation maintenance. And displaying the track detection result in a three-dimensional visual way through a three-dimensional visualization technology.
The non Engine4 is a strong game Engine of EPIC company, mainly used by game developers, but is also used as a technical means for three-dimensional visualization of railway lines due to its strong modeling and rendering functions, and further becomes an indispensable auxiliary tool for railway line maintenance. In terms of railway line visualization, the UE4 has the following advantages over other railway line design software:
1) real-time rendering and PBR material system: the experience and the designer can create in a real railway line scene.
2) Python mode and blueprint mode: the unique blueprint mode can enable a designer to rapidly master the engine operation performance without C language and carry out high-simulation model interactive simulation.
3) Multi-platform compatibility: a user of the conventional railway line roaming software needs to open a file by virtue of a fixed engine, and the UE4 can release HT-ML5, Android, Windows and other formats for the user to use.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method for realizing visual simulation of railway track engineering based on UE4, which realizes a good visual effect on high-speed railway line track engineering by utilizing the excellent rendering capability of a UE4 engine, and realizes the purpose of quick and efficient visualization of the high-speed railway line track engineering track data by combining 3DMAX to realize the visual simulation of the engineering in UE 4.
In order to achieve the above purpose, the technical solution for solving the technical problem is as follows:
a method for realizing visual simulation of railway track engineering based on UE4 comprises the following steps:
step A: 3DMAX completes the assembly of the three-dimensional model and the components of the track engineering of the high-speed railway line;
and B: and importing the three-dimensional model into the UE4, and finishing the visual simulation of the high-speed railway line track engineering by using a blueprint.
Further, the step a comprises:
step A1: establishing a three-dimensional basic model of a high-speed railway line track, importing the three-dimensional basic model into 3DMAX, and finishing the exhibition of UV and mapping of the three-dimensional basic model of the line track;
step A2: the lights and camera points are removed, the unit is set to cm, and the game exporter exports the data from the 3DMAX package through FBX switching technology.
Further, the step a2 further includes:
the following principle is followed for a scene, the number of polygonal surfaces is reduced to the maximum under the condition of not influencing model precision, and the model can be integrally completed in a mode of not splicing as much as possible.
Further, the step B includes:
step B1: adding an asset import track 3DMAX three-dimensional basic model in a content browser;
step B2: performing line programming on a basic model by using a blueprint, adding the blueprint to the basic model in details, adding a Spline Spline component in a Default SceneRoot default scene root component, and adding a static mesh component and a forward axis E Spline mesh body axis component in a variable;
step B3: constructing a blueprint script, and then finishing the editing of the whole line track on a viewport interface of a main interface;
step B4: endowing a static model with proper skin attributes in the UE4, defining the model skin by selecting different materials, and then displaying the high-speed railway line track engineering condition endowed with the skin;
step B5: the UE4 model is packaged and derived from the Unreal Engine 4.
Further, in the step B3, by clicking a blank interface, right-clicking a blank position in the graph, and opening a shortcut menu to quickly add a node in the graph.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
the invention realizes good visual effect on the high-speed railway line track engineering by utilizing the excellent rendering capability of the UE4 engine, and realizes the purpose of quick and efficient visualization of the track data of the high-speed railway line track engineering by combining 3DMAX to realize the visual simulation of the engineering in the UE 4.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is an overall flow chart of a method for implementing visual simulation of railway track engineering based on UE4 according to the present invention;
FIG. 2 is a detailed flowchart of step A of the method for implementing visual simulation of railway track engineering based on UE4 according to the present invention;
FIG. 3 is a detailed flowchart of step B in the implementation method of visual simulation of railway track engineering based on UE4 according to the present invention;
FIG. 4 is a simulation diagram of a visual basic model of a high-speed railway line project;
FIG. 5 is a visual simulation diagram of a part of engineering of a high-speed railway line engineering;
FIG. 6 is a blueprint script of the high-speed railway line engineering.
Detailed Description
While the embodiments of the present invention will be described and illustrated in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
As shown in fig. 1 to 6, the present embodiment discloses a method for implementing visual simulation of railway track engineering based on UE4, including the following steps:
step A: 3DMAX completes the assembly of the three-dimensional model and the components of the track engineering of the high-speed railway line;
and B: and importing the three-dimensional model into the UE4, and finishing the visual simulation of the high-speed railway line track engineering by using a blueprint.
Referring specifically to fig. 2, step a includes:
step A1: establishing a three-dimensional basic model of a high-speed railway line track, importing the three-dimensional basic model into 3DMAX, and finishing the exhibition of UV and mapping of the three-dimensional basic model of the line track; at this time, it is important to ensure that the surface of the high-speed railway track model is minimum, the calculation amount is as small as possible, and the line reuse is preferable. When a track plate is manufactured, the number of surfaces of a single object is not too large, and the number of the surfaces of the single object is controlled to be less than 10000.
Step A2: the lights and camera points are removed, the unit is set to cm, and the game exporter exports the data from the 3DMAX package through FBX switching technology.
Further, the step a2 further includes:
the following principle is followed for a scene, the number of polygonal surfaces is reduced to the maximum under the condition of not influencing model precision, and the model can be integrally completed in a mode of not splicing as much as possible.
Referring specifically to fig. 3, the step B includes:
step B1: adding an asset import track 3DMAX three-dimensional basic model in a content browser;
step B2: performing line programming on a basic model by using a blueprint, adding the blueprint to the basic model in details, adding a Spline Spline component in a Default SceneRoot default scene root component, and adding a static mesh component and a forward axis E Spline mesh body axis component in a variable;
step B3: constructing a blueprint script, after the script is completed, compiling and checking whether the script logic is complete, and then completing the whole line track editing on a viewport interface of a main interface;
step B4: endowing a static model with proper skin attributes in the UE4, defining the model skin by selecting different materials, and then displaying the high-speed railway line track engineering condition endowed with the skin; by the superposition of the visual effects, the scene environment looks more real, and a more real simulation effect is achieved.
Step B5: the UE4 model is packaged and derived from the Unreal Engine 4.
Further, in the step B3, by clicking a blank interface, right-clicking a blank position in the graph, and opening a shortcut menu to quickly add a node in the graph.
In conclusion, the method provided by the invention mainly utilizes the UE4 engine technology to simulate the three-dimensional interactive virtual environment and visualize the high-speed railway line engineering. The high-speed railway line engineering is accurately simulated through the UE4 in the virtual world, the visual, auditory and tactile stereoscopic feelings are combined, a user can browse and interactively observe in a virtual engineering scene from any position, and the visualization of an engineering scheme, the visualization of engineering data and the preposition of engineering problems are realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A method for realizing visual simulation of railway track engineering based on UE4 is characterized by comprising the following steps:
step A: 3DMAX completes the assembly of the three-dimensional model and the components of the track engineering of the high-speed railway line;
and B: and importing the three-dimensional model into the UE4, and finishing the visual simulation of the high-speed railway line track engineering by using a blueprint.
2. The method for implementing visual simulation of railway track engineering based on UE4 according to claim 1, wherein the step A includes:
step A1: establishing a three-dimensional basic model of a high-speed railway line track, importing the three-dimensional basic model into 3DMAX, and finishing the exhibition of UV and mapping of the three-dimensional basic model of the line track;
step A2: the lights and camera points are removed, the unit is set to cm, and the game exporter exports the data from the 3DMAX package through FBX switching technology.
3. The method for implementing visual simulation of railway track engineering based on UE4 of claim 2, wherein said step A2 further comprises:
the following principle is followed for a scene, the number of polygonal surfaces is reduced to the maximum under the condition of not influencing model precision, and the model can be integrally completed in a mode of not splicing as much as possible.
4. The method for implementing visual simulation of railway track engineering based on UE4 according to claim 1, wherein the step B includes:
step B1: adding an asset import track 3DMAX three-dimensional basic model in a content browser;
step B2: performing line programming on a basic model by using a blueprint, adding the blueprint to the basic model in details, adding a Spline Spline component in a Default SceneRoot default scene root component, and adding a static mesh component and a forward axis E Spline mesh body axis component in a variable;
step B3: constructing a blueprint script, and then finishing the editing of the whole line track on a viewport interface of a main interface;
step B4: endowing a static model with proper skin attributes in the UE4, defining the model skin by selecting different materials, and then displaying the high-speed railway line track engineering condition endowed with the skin;
step B5: the UE4 model is packaged and derived from the Unreal Engine 4.
5. The method for implementing visual simulation of railway track engineering based on UE4 of claim 4, wherein in step B3, the shortcut menu is opened by right-clicking a blank position in the diagram by clicking a blank interface, so as to add nodes in the diagram quickly.
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| CN107423458A (en) * | 2017-03-08 | 2017-12-01 | 上海大学 | Steel manufacture process analogue system |
| CN108492382A (en) * | 2018-04-10 | 2018-09-04 | 中国建筑局（集团）有限公司 | VR visualizes method and system of telling somebody what one's real intentions are of constructing |
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