Brand clothing virtual display method based on digital twinning technology

Abstract

The invention provides a brand clothing virtual display method based on a digital twin technology. The brand clothing virtual display method comprises the following steps: constructing a digital twin model according to human body data of a brand clothing target consumer; according to the digital twin model, obtaining a virtual model conforming to the stature proportion of the target consumer; hardware 3D auxiliary materials are manufactured based on the design drawings and industry chain experience, and mold opening production is carried out; making a three-dimensional virtual clothing white film on the body of the virtual model, and performing review and revision on the made three-dimensional virtual clothing white film; rendering the three-dimensional virtual clothing white film and the virtual model after reviewing and revision; performing virtual display and dynamic adjustment of a production process based on brand feedback; compared with the prior art, the method has the following beneficial effects that by combining multiple pieces of virtual reality software, the proofing number of entity sample clothes in the costume design and production process is reduced, and the problems of proofing and sample clothes long-time period adjustment are solved, so that the effects of shortening the design and production period and reducing the proofing cost are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing virtual reality, and in particular to a brand clothing virtual display method based on digital twin technology. Background Art

[0002] With the globalization of the economy and changes in consumer concepts, competition in the brand clothing market is becoming increasingly fierce, and consumers are paying more and more attention to the style and comfort of clothing. Traditional clothing design and production processes often have the problem of virtual display effects being out of touch with actual production conditions, which leads to longer R&D and production cycles and higher costs.

[0003] At present, virtual clothing display technology has been applied to a certain extent in the clothing industry, but its effect is often difficult to be completely consistent with the actual wearing effect, especially in terms of positioning printing, denim washing effect, etc., there is a large gap; this disconnection not only prolongs the time for customer confirmation and production, but may also affect the brand's market competitiveness; in order to improve R&D and production efficiency, shorten the development time of brand clothing and reduce costs, there is an urgent need for a solution that closely integrates virtual clothing with actual production. Summary of the invention

[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a brand clothing virtual display method based on digital twin technology, which is used to solve the problem that the traditional clothing design and production processes often have a disconnection between the virtual display effect and the actual production situation, which leads to long R&D and production cycles and high costs.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present invention provides the following technical solutions:

[0006] A method for virtual display of brand clothing based on digital twin technology comprises the following steps: obtaining human body data of target consumers of brand clothing, and constructing a digital twin model according to the human body data; obtaining a reference model from a human body model library, and evaluating and adjusting the size of the reference model according to the digital twin model, and obtaining a virtual model that meets the body proportions of the target consumer according to the evaluation and adjustment results; making hardware 3D accessories based on design drawings and industrial chain experience, and opening molds to produce the hardware accessories after confirming the effects; making a three-dimensional virtual clothing white film on the body of the virtual model using the hardware 3D accessories, and reviewing and revising the prepared three-dimensional virtual clothing white film; rendering the reviewed and revised three-dimensional virtual clothing white film and virtual model, making virtual materials for rendering, and adjusting the lighting and background to optimize the rendering, thereby improving the overall fabric realism; performing virtual display and dynamic adjustment of the production process on the rendered three-dimensional virtual clothing white film and virtual model based on brand feedback, wherein the brand clothing shows the best rendering visual effect.

[0007] In one embodiment of the present invention, the method of obtaining the body data of the target consumers of the brand clothing includes but is not limited to using a scanning device, wherein the body data includes body size and shape data.

[0008] In one embodiment of the present invention, the reference model is obtained from a human body model library, and the size of the reference model is evaluated and adjusted according to the digital twin model, and a virtual model that meets the body proportions of the target consumer is obtained according to the evaluation and adjustment results, including: downloading the reference model from the human body model library in the design software, and then adjusting the size of each part of the reference model, and checking the size of each part of the reference model to make it meet the body proportions of the target consumer, wherein a three-dimensional human body scan of a real-life model that meets the brand's target customers can be performed to obtain a basic model; the reference model is further sculpted and the size is adjusted, and the adjustment is repeated until the size of each part of the reference model meets the requirements, thereby obtaining a virtual model that meets the body proportions of the target consumer.

[0009] In one embodiment of the present invention, the 3D auxiliary materials for hardware are produced based on design drawings and industry chain experience, and the molds are opened to produce the hardware auxiliary materials after the effect is confirmed, including: producing the required 3D auxiliary materials for hardware based on the designer's drawings and industry chain experience; using 3D technology to express the auxiliary material effect, and immediately giving it to the factory for customization after customer confirmation, and producing through 3D printing or other manufacturing technologies to save auxiliary material development time.

[0010] In one embodiment of the present invention, the use of hardware 3D accessories to make a three-dimensional virtual clothing white film on the virtual model, and reviewing and revising the prepared three-dimensional virtual clothing white film, includes: obtaining a DXF pattern file provided by a designer, sewing the pattern, adding necessary detail elements, wherein if the design includes a printed pattern, the size and placement of the print need to be adjusted; using a UV editor to process the clothing pattern, and uniformly sorting the pattern of each clothing model into each UV grid, thereby obtaining the prepared three-dimensional virtual clothing white film; reviewing and revising the prepared three-dimensional virtual clothing white film.

[0011] In one embodiment of the present invention, in the process of making virtual clothing samples, the 3D sample maker judges based on experience whether each detail can be mass-produced in the actual factory and whether the overall labor cost is within a reasonable range. If it is unreasonable, timely adjustments are made and feedback is given to the brand clothing customer to ensure the organic combination of virtual clothing modeling and factory production lines.

[0012] In one embodiment of the present invention, the three-dimensional virtual clothing white film and virtual model after the review and revision are rendered, virtual materials are made for rendering, and lighting and background adjustments are made to optimize the rendering, thereby improving the overall fabric realism, including: making material effects of the three-dimensional virtual clothing white film after the review and revision and optimizing node materials; using rendering software to render the optimized three-dimensional virtual clothing white film, wherein if a washed effect is required, the optimized three-dimensional virtual clothing white film is subjected to a washed effect; by superimposing materials with different special effects, no matter whether the virtual clothing sample is cotton or satin, whether it contains printing or embroidery, it can be rendered by superimposing different special effects, thereby obtaining a dynamic visual effect that restores a real clothing sample.

[0013] In one embodiment of the present invention, the virtual display and dynamic adjustment of the production process of the rendered three-dimensional virtual clothing white film and virtual model based on brand feedback include: adjusting the pixel size, lighting, background image and other contents for rendering, and then giving the rendering effect to the brand clothing for confirmation. If adjustment is required, it is modified in time, and finally the final effect is used for advertising in the brand's physical store and online store.

[0014] As described above, a brand clothing virtual display method based on digital twin technology of the present invention has the following beneficial effects: the digital twin model in the present invention is constructed based on the human body data of the target consumer, so it can reflect the actual body characteristics of the consumer; the virtual model is established after evaluating the model size, so it can accurately reflect the body proportion and characteristics of the model; the 3D accessories of hardware parts are made based on the design drawings and the experience of the industrial chain, and are realized through mold opening production; the three-dimensional virtual clothing white film is produced and revised on the basis of combining the factory production line and the three-dimensional virtual clothing, so by closely combining the virtual technology with the actual factory production, it can provide a more realistic clothing display effect; the virtual material is made through augmented reality It is made with virtual reality technology and can provide a realistic virtual try-on effect. The virtual display and production process are adjusted based on brand feedback to present a visual effect that is more in line with market demand. This is achieved online through digital twin technology and then put into offline production of finished garments, thereby reducing the number of physical sample production times and shortening the cycle of new product development and listing. Therefore, the present invention combines multiple virtual reality software to reduce the number of physical sample proofing in the clothing design and production process, solves the problem of long proofing and adjustment cycle of sample proofing, thereby shortening the design and production cycle and reducing the proofing cost. Virtual reality clothing can not only be used for style selection and shortening proofing time, but also can be used as material for advertising, so as to achieve the purpose of reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1Shown is a flow chart of a brand clothing virtual display method based on digital twin technology disclosed in an embodiment of the present invention;

[0016] Figure 2 Shown is a schematic diagram of the virtual model making process in the present invention;

[0017] Figure 3 A schematic diagram showing material optimization of a reference node in the present invention is shown;

[0018] Figure 4 Shown is a schematic diagram of the positioning print used in the present invention;

[0019] Figure 5 Shown is a schematic diagram of a clothing style with accessories in the present invention;

[0020] Figure 6 Shown is a schematic diagram of a UE5 PBR rendering example in the present invention. DETAILED DESCRIPTION

[0021] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] The present invention relates to a brand clothing virtual display method based on digital twin technology, the process is as follows Figure 1 As shown, the specific steps include:

[0023] Step 101, obtaining the body data of target consumers of brand clothing, and building a digital twin model based on the body data.

[0024] Specifically, the method of obtaining the body data of the target consumers of brand clothing includes but is not limited to using scanning equipment, wherein the body data includes body size and shape data; the target consumers of brand clothing can be boys, girls, young men, young women, middle-aged men, middle-aged women, obese people, etc., and the body data includes the target consumers' height, arm length, leg length, shoulder width, chest circumference, waist circumference, hip circumference, thigh circumference, calf circumference and other key dimensions. After obtaining the body data, the data is processed and cluster analysis is performed to construct a body model of the target consumer.

[0025] Step 102, obtaining a reference model from a human body model library, and evaluating and adjusting the size of the reference model according to the digital twin model, and obtaining a virtual model that meets the body proportions of the target consumer according to the evaluation and adjustment results.

[0026] Specifically, a reference model is downloaded from the human body model library in the design software, and then the dimensions of various parts of the reference model are adjusted and verified to make them conform to the body proportions of the target consumers. A three-dimensional human body scan of a real-life model that meets the brand's target customers can also be performed to obtain a basic model; then the reference model is further sculpted and the size is adjusted, and the adjustments are repeated until the dimensions of various parts of the reference model meet the requirements, thereby obtaining a virtual model that conforms to the body proportions of the target consumers.

[0027] In actual application, use the human model library in DAZ studio software to download reference models, adjust various parts of the model, check the size, so that it meets the body proportions of the target consumers, or perform 3D human body scanning on real models that meet the brand's target customers to obtain a basic model. Among them, because the size adjustment of DAZ studio software is limited, further fine-tuning is performed using ZBrush. The size measurement method is to use the virtual measurement tools of Style 3D modeling software, including circumference measurement, length measurement, height measurement, and measurement using a tape tool; then export the virtual model as an obj file, use Zbrush software to carve the model and adjust the size, and adjust it repeatedly until the size of each part of the virtual model meets the requirements. The size of each part of the virtual model meets the requirements can be judged based on the modeler's experience and the virtual measurement size. For details, please refer to Figure 2 .

[0028] Step 103, produce 3D hardware accessories based on the design drawings and industry chain experience, and after confirming the effect, open the mold to produce the hardware accessories.

[0029] Specifically, the required 3D auxiliary materials for hardware are first produced based on the designer's drawings and industry chain experience; then 3D technology is used to express the auxiliary material effects, and after customer confirmation, they are immediately sent to the factory for customization and produced through 3D printing or other manufacturing technologies to save auxiliary material development time.

[0030] In actual applications, the required auxiliary materials are first produced based on the designer's drawings and industry chain experience, including common 3D auxiliary hardware such as webbing, various buttons (may contain brand logos), zipper heads, brand logos, badges, rivets, pendants, etc.; then 3D technology is used to express the auxiliary material effect, and after customer confirmation, it is immediately sent to the factory for customization, and produced through 3D printing or other manufacturing technologies to save time. This link requires experience.

[0031] Step 104, using hardware 3D accessories to make a three-dimensional virtual clothing white film on the virtual model, and reviewing and revising the made three-dimensional virtual clothing white film.

[0032] Specifically, first obtain the DXF pattern file provided by the designer, sew the pattern, and add necessary detail elements. If the design includes a printed pattern, the size and placement of the print need to be adjusted. Then use the UV editor to process the clothing pattern, and sort the pattern of each piece of clothing into each UV grid to obtain the three-dimensional virtual clothing white film. Then review and revise the three-dimensional virtual clothing white film.

[0033] In practical applications, the production and revision of 3D virtual clothing white film can optimize the design process in this step, ensure the organic combination of virtual clothing modeling and factory production line, and quickly respond to market demand and improve efficiency by connecting various links in series through software, including: using Style 3D software or other 3D virtual clothing software such as CLO 3D, Browzwear, etc. to import dxf pattern files for stitching, adding zippers, buttons, open stitches and other accessories, you can use the accessories in the 3D software's own resource library, or the self-made hardware 3D accessories in step 103; if using printing, combined with Adobe Illustrator software is used to adjust the size and placement of the print; UV editor is used to compress the size of the pattern, and each type of clothing is arranged uniformly, with a UV grid for each type; the clothing white film obj file is exported; the convenient function of virtual clothing is used to review and revise the pattern, and UV is readjusted and obj files are exported after modification; among them, the combination of production line and virtual 3D includes comparing and adjusting the virtual try-on effect with the actual production process to optimize the production process and reduce waste. Traditional physical samples usually undergo multiple modifications to achieve the desired effect. Digital twin technology is used to reduce the number of modifications and achieve cost reduction and efficiency improvement. In the process of making virtual clothing samples, 3D sample makers judge based on experience whether each detail can be mass-produced in the actual factory and whether the overall labor cost is within a reasonable range. If it is unreasonable, timely adjustments are made and feedback is given to brand clothing customers to ensure the organic combination of virtual clothing modeling and factory production lines.

[0034] Step 105, rendering the three-dimensional virtual clothing white film and virtual model after the review and revision, making virtual materials for rendering, and adjusting the lighting and background to optimize the rendering, thereby improving the overall fabric realism.

[0035] Specifically, first, the material effects of the three-dimensional virtual clothing white film after review and revision are produced and the node materials are optimized; then the optimized three-dimensional virtual clothing white film is rendered using rendering software, wherein, if a washed effect is required, the optimized three-dimensional virtual clothing white film is subjected to a washed effect; through the superposition of materials with different special effects, no matter whether the virtual clothing sample is cotton or satin, whether it contains printing or embroidery or not, it can be rendered through the superposition of different special effects, thereby obtaining a dynamic visual effect that restores the real clothing sample.

[0036] In actual application, import the 3D virtual clothing white film obj into Cinema 4D, make material effects and optimize node materials. The realism of materials is related to the experience of modelers. Make virtual materials and apply augmented reality technology to achieve high-simulation virtual try-on effects. Use rendering software such as blender, Cinema 4D, Houdini, AUTODESKMAYA, UE5, Unity, etc. for rendering. Add lights and put them in the right position before rendering. Modelers try from multiple angles and need to accumulate experience. If a washed effect is required, use Adobe Substance software to make the washed effect. 3D modelers adjust the brush size according to the position and depth of the washed effect. The washed process needs to combine the washed effect of existing samples many times. Through different special effects superimposed materials, no matter whether the sample is cotton or satin, with printing, embroidery or not, it can be rendered through different special effects superimposed, and finally present a dynamic three-dimensional, enlargeable, rotatable, and restore the dynamic visual effect of the real sample. For details, please refer to Figures 3 to 6 .

[0037] Step 106 , dynamically adjusting the virtual display and production process of the rendered three-dimensional virtual clothing white film and virtual model based on the brand feedback.

[0038] Specifically, first adjust the pixel size, lighting, background image and other contents for rendering, then send the rendered effect to the brand clothing for confirmation, and modify it in time if adjustment is needed. Finally, use the final effect for advertising in the brand's physical stores and online stores. There are also adjustments based on brand feedback, including collecting opinions from consumers and brands, and modifying virtual displays and production processes in real time to meet market demand and improve customer satisfaction. Advertising includes displaying virtual try-on effects and online fashion shows on the brand's official website, social media and e-commerce platforms to attract consumers and promote sales.

[0039] Furthermore, the present invention includes a plurality of specific operation steps, such as using DAZ studio to download and adjust models, using style 3D to make white films, using Cinema 4D to optimize materials, etc.; the specific implementation method and technical details of each step can be adjusted and optimized according to actual needs to achieve the best virtual display effect and production efficiency. The contents included in step 101 to step 106 can be further described as follows:

[0040] Step 101: Construction of digital twin model: Use high-precision 3D scanning equipment to perform a full-body scan of one or several target consumers to obtain detailed body size and morphology data; then use the scanned data to build a digital twin model of the target consumer using 3D modeling software (such as DAZ studio) to ensure that the data of the digital twin model is consistent with the actual body data. If European and American brands of clothing enter the Chinese market, the body shape of Chinese people is different from that of European and American people, so it is necessary to build a human body model that meets the brand's target customer groups. The target customer groups are boys, girls, young men, young women, middle-aged men, middle-aged women, obese people, etc.

[0041] Step 102: Create a virtual model: In the DAZ studio software, download a standard male L or female M size model from the human model library, or perform a 3D human body scan on a real model to obtain a basic model; adjust the size of each part of the model and check the size to make it consistent with the body proportions of the target consumer; export the adjusted model as an obj file; then import the obj file into the zbrush software, perform fine carving and adjustment on the model, and make repeated adjustments until the size of each part of the virtual model meets the requirements.

[0042] Step 103: Production and mold opening of 3D auxiliary materials: Based on the design drawings provided by the designer and the experience of the industrial chain, common 3D auxiliary hardware parts are produced, such as webbing, various buttons (may contain brand logos), zipper heads, brand logos, badges, rivets, pendants, etc.; these auxiliary materials are modeled in detail using 3D modeling software, and samples are made through 3D printing or other manufacturing technologies; finally, the effect of the 3D auxiliary materials is presented to the customer, and after the customer confirms, mold production is immediately carried out, saving auxiliary material development time. Figure 5 Style shown includes trims.

[0043] Step 104: Production and revision of 3D virtual clothing white film: Import design files: Use Style 3D software to import the DXF pattern files provided by the designer to prepare for subsequent modeling; Pattern sewing: In Style 3D software, sew the imported pattern and add necessary detail elements such as zippers, buttons and exposed stitching to achieve the desired design effect; Print design adjustment: If the design contains print patterns, use Adobe Illustrator software is used to adjust the size and placement of the print to ensure that it is coordinated with the overall design style; UV editing: UV editor is used to process the clothing pattern, and the pattern of each clothing is uniformly sorted into each UV grid, so as to optimize the use of UV space and reduce the file size; File export: Export the completed clothing white film OBJ file for subsequent review and virtual display; Review and revision: Use the advantages of virtual clothing to review and revise the pattern, ensure the organic combination of design and factory production process, respond to customer feedback, and make timely design adjustments if modifications are required, readjust the UV layout, and export new OBJ files. Example 1: If the newly developed pants fabrics have A, B, C, D and other types, first make virtual samples to see the effects of each fabric, and then select the fabric that meets the requirements. Make physical samples based on the materials to reduce the cost of proofing; Production feasibility assessment: In the virtual sample production process, evaluate each detail based on experience to determine whether it is suitable for mass production and ensure that the overall labor price and cost are within a reasonable range. By optimizing the design and combining it with the factory production line, make timely adjustments to the unreasonable aspects and feedback to the brand clothing customers to ensure the organic combination of virtual clothing modeling and factory production lines. Example 2: The customer's style drawing is a round-neck printed top. After the 3D sample is made, we believe that if the size and position of the print are adjusted, the mold opening cost can be saved. We can make another adjustment for the customer to choose. If the customer thinks that the printed top is more beautiful by changing from a round neck to a square neck, we can directly revise it to a square neck for the customer to confirm, instead of revising it after the physical sample is produced.

[0044] Step 105: Production and rendering of virtual materials: Import the clothing white film obj file into Cinema 4D software; produce material effects in Cinema4D, and optimize node materials to ensure the realism of virtual clothing; if the clothing made with STYLE3D is imported into C4D and then the material is added, it is found that the interlaced parts of the clothing are not simulated well during the process. In this case, the following two methods are used to achieve it: Method 1: Use point mode, select the tool in soft election and check enable soft selection, adjust the brush radius size, and adjust the two interlaced layers; Method 2: Create-Deformer-FFD, match to parent, adjust the number of mesh points, and pull the points of the interlaced part in point mode; Use rendering software (such as blender, Cinema4D, Houdini, AUTODESK MAYA, UE5, Unity, etc.) for rendering; If a washed effect is required in the design, export the UV file and use Adobe Substance software to produce the washed effect.

[0045] Step 106: Brand feedback and adjustment: Based on brand feedback, adjust the virtual display and production process; adjust the pixel size, lighting, background image and other content for rendering to ensure that the final rendering meets the brand's visual requirements; collect opinions from consumers and brands, and modify the virtual display and production process in real time to meet market demand and improve customer satisfaction; finally, use the final rendering for advertising on the brand's online store, social media and e-commerce platforms to attract consumers and promote sales.

[0046] To sum up, the present invention closely combines virtual technology with actual factory production to provide a more realistic clothing display effect, shorten the design and production cycle, improve efficiency, reduce costs, meet the personalized needs of customers, and support the promotion of brand clothing in different national markets or consumer groups; the present invention also meets the online needs of customers by integrating optimized digital twins and virtual fitting technology and hyper-realistic virtual fashion platforms, facilitates timely adjustments of offline factories, and provides ideas for brand clothing to open up different national markets or different consumer groups.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A brand clothing virtual display method based on digital twin technology, characterized in that: The following steps are involved: Obtaining human body data of target consumers of brand clothing and building a digital twin model based on the human body data; Obtain a reference model from a human model library, and evaluate and adjust the size of the reference model according to the digital twin model, and obtain a virtual model that meets the body proportions of the target consumer according to the evaluation and adjustment results; Produce 3D hardware accessories based on design drawings and industry chain experience, and open molds to produce hardware accessories after confirming the effect; Using the hardware 3D accessories to make a three-dimensional virtual clothing white film on the virtual model, and reviewing and revising the made three-dimensional virtual clothing white film; Render the 3D virtual clothing white film and virtual model after the review and revision, make virtual materials for rendering, and adjust the lighting and background to optimize the rendering, thereby improving the overall fabric realism; Based on brand feedback, the rendered three-dimensional virtual clothing white film and virtual model are virtually displayed and the production process is dynamically adjusted, wherein the brand clothing shows the best visual effect of the rendering.

2. According to claim 1, a brand clothing virtual display method based on digital twin technology is characterized in that: The method of obtaining the body data of the target consumers of the brand clothing includes but is not limited to using a scanning device, wherein the body data includes body size and shape data.

3. The brand clothing virtual display method based on digital twin technology according to claim 1 is characterized in that: The step of obtaining a reference model from a human model library, evaluating and adjusting the size of the reference model according to the digital twin model, and obtaining a virtual model that meets the body proportions of the target consumer according to the evaluation and adjustment results includes: Downloading a reference model from a human model library in the design software, and then adjusting the size of each part of the reference model and checking the size of each part of the reference model to make it conform to the body proportions of the target consumer, wherein a three-dimensional human body scan of a real-life model that conforms to the brand's target customers can also be performed to obtain a basic model; The reference model is further sculpted and sized, and the adjustments are repeated until the sizes of various parts of the reference model meet the requirements, thereby obtaining a virtual model that meets the body proportions of the target consumer.

4. The brand clothing virtual display method based on digital twin technology according to claim 1 is characterized by: The 3D auxiliary materials for hardware parts are made based on the design drawings and the experience of the industrial chain, and the molds are opened to produce the auxiliary materials after the effect is confirmed, including: Produce the required 3D accessories for hardware based on the designer's drawings and industry chain experience; Use 3D technology to express the auxiliary material effect, and send it to the factory for customization immediately after customer confirmation. Produce it through 3D printing or other manufacturing technologies to save auxiliary material development time.

5. The method for virtual display of branded clothing based on digital twin technology according to claim 1, characterized in that: The method of using the hardware 3D accessories to make a three-dimensional virtual clothing white film on the virtual model, and reviewing and revising the made three-dimensional virtual clothing white film, includes: Get the DXF pattern file provided by the designer, sew the pattern, and add necessary details. If the design includes a printed pattern, the size and placement of the print need to be adjusted. Use UV editor to process clothing patterns, and uniformly sort the patterns of each clothing to each UV grid, so as to obtain the prepared three-dimensional virtual clothing white film; The prepared three-dimensional virtual clothing white film is reviewed and revised.

6. The brand clothing virtual display method based on digital twin technology according to claim 5 is characterized by: In the process of making virtual clothing samples, 3D sample makers judge based on experience whether each detail can be mass-produced in the actual factory and whether the overall labor cost is within a reasonable range. If it is unreasonable, timely adjustments will be made and feedback will be given to brand clothing customers to ensure the organic combination of virtual clothing modeling and factory production lines.

7. The brand clothing virtual display method based on digital twin technology according to claim 1 is characterized by: The three-dimensional virtual clothing white film and virtual model after the review and revision are rendered, virtual materials are made for rendering, and lighting and background adjustments are made to optimize the rendering, thereby improving the overall fabric realism, including: Produce the material effect of the white film of the three-dimensional virtual clothing after the review and revision and optimize the node material; Rendering the optimized three-dimensional virtual clothing white film using rendering software, wherein if a water washing effect is required, the optimized three-dimensional virtual clothing white film is subjected to a water washing effect production; By superimposing materials with different special effects, no matter whether the virtual clothing sample is cotton or silk, or whether it contains prints or embroidery or not, it can be rendered through superimposing different special effects, thus obtaining a dynamic visual effect that restores the real clothing sample.

8. The method for virtual display of branded clothing based on digital twin technology according to claim 1, characterized in that: The virtual display and dynamic adjustment of the production process of the rendered three-dimensional virtual clothing white film and virtual model based on brand feedback include: Adjust the pixel size, lighting, background image and other contents for rendering, then submit the rendered effect to the brand clothing for confirmation. If adjustment is needed, modify it in time. Finally, use the final effect for advertising in the brand's physical store and online store.

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