Large data volume igs industrial model polygon conversion method for VR engine

Abstract

The invention discloses a POLYGON conversion method for an IGS industrial model with a large amount of data facing a VR engine. Use the Polygon edge removal tool to batch optimize the number of polygon segments and vertices of the Polygon model; 4) Convert the narrow and long facets of the model according to the conversion requirements of the virtual platform, and import the observation results of the real-time rendering engine; 5) For the texture without Logo According to the degree of curvature of the model, use the UV solution plug-in 3D-IO Flatiron to solve the UV in batches, and use individual UV solution for the model with Logo texture to obtain complete and unified UV information; 6) In 3dsmax, according to the virtual engine to be used It is required to set collision and physical properties; 7) Import the edited 3D model into the virtual engine platform, and assemble it to form a VR model. The conversion method proposed by the invention can improve conversion efficiency and accuracy.

Description

technical field [0001] The invention relates to computer simulation technology, in particular to a POLYGON conversion method for a VR engine-oriented IGS industrial model with a large amount of data. Background technique [0002] With the rapid development of information technology, virtual reality technology and computer technology, 3D lightweight model technology has been widely used in many ship design and construction units, supporting ship design research and development and virtual simulation analysis, gradually changing the design methods of the shipbuilding industry, The design method and management mode can improve the design level, shorten the design cycle and improve the design quality. [0003] The three-dimensional design and assembly structure of large ships is complex, generally divided by the general section of the ship, and then divided by function, which are the overall shape, hull structure, equipment, pipelines, cables, etc. With the continuous deepening ...

AI Technical Summary

Problems solved by technology

[0006] (2) For the second method, due to improper conversion method, the model data will be missing and the surface will be incomplete, resulting in distortion of the front and rear normal directions of the patch or cracks on the surface;

[0007] (3) For the surface model, the number of surface segments cannot be adjusted in batches according to the curvature requirements of the surface to meet the requirement of reducing the number of model faces, and the virtual platform needs to make high, medium and low LOD models according to the distance of the camera;

[0008] (4) For the converted MESH model, UV solution cannot be conveniently performed, and UV solution is the condition for obtaining correct lighting information in the virtual engine and the basis of texture mapping, and is a necessary process for importing into the virtual engine

[0009] The above description shows the shortcomings of the traditional large data volume 3D lightweight model conversion method, which leads to the failure of the normal conversion of the CATIA model of the whole ship

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