Normal, geometric and uv factors-based mesh simplification method

Abstract

The invention discloses a normal, geometric and uv factors-based mesh simplification method. The method is characterized by comprising the following steps of: S11, obtaining a mesh; S12, calculating triangle characteristic data; S13, traversing triangular facets in the mesh to obtain a weight sum; S14, determining a weight value; S15, deleting accordant peaks; S16, carrying out shrinkage processing on the simplified mesh; and S17, repeating the steps S11 to S16 to complete the simplification. The invention furthermore comprises a normal, geometric and uv factors-based mesh simplification scheme. The method disclosed by the invention has the beneficial effects that the simplified mesh is automatically generated to release plenty of time required by manual art cutting; the mesh can be modified according to different influence factor weights to generate a simplification version which satisfies the demands; and the visual characteristics of the objects can be better retained by the mesh when drawing accelerations of the peaks and facets are decreased.

Description

technical field [0001] The invention relates to a grid simplification method based on normal direction, geometry and uv factors, in particular to a grid simplification method based on normal direction, geometry and uv factors, and belongs to the field of computer three-dimensional animation. Background technique [0002] The purpose of mesh simplification is mainly to speed up drawing by reducing vertices and faces while ensuring the rendering effect. Through mesh simplification, meshes of different simplified versions of the object model can be generated to form different levels of detail of the object. [0003] At present, there are mainly two types of technology in this field. One is to directly use 3D animation software to delete and modify meshes of different simplified versions, and the other is to use simple mesh algorithms in the code to automatically generate simplified meshes. [0004] 1. The basic flow chart of using 3D animation software to delete and modify the...

AI Technical Summary

Problems solved by technology

[0005] 1. There will be a large number of scene models and character models in the game. Generally, the number of simplified grids should be at least one or two according to specific needs. If each model grid needs to be manually simplified by the artist, the It will greatly take up the time of 3D model art, and this large amount of work often causes game studios to abandon this level of detail optimization scheme, resulting in low game rendering efficiency

[0006] 2. Since there is no automatic generation, the simplified effect often needs to be put into the game engine to see the simplified grid rendering effect. This method will make the production process redundant and time-consuming

This method is not suitable for actual game applications, because the influence of the lighting and shading of the model is based on the normal direction of the vertices and faces of the object rather than geometric factors such as position

Therefore, using the existing mesh simplification algorithm will lead to poor rendering effect

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