Cutting method based on Unity 3D model

Abstract

A cutting method based on a Unity 3D model comprises the following steps: S1, obtaining a cutting surface of the model, wherein the model comprises vertexes and triangular surfaces formed by every three vertexes; S2, obtaining a triangular surface intersecting with the cutting surface in the model; S3, emitting rays to the other two vertexes from the vertex on one side of the intersecting triangular surface, obtaining an intersection point with the cutting surface, constructing first-class new triangular surfaces located on the two sides based on the intersection point, and generating new vertex information and first-class new triangular surface information through all the intersection points; S4, reordering the new vertex information to form a closed polygon on the profile, and generatinga second type of new triangular surface filling profile; and S5, cloning the original model to generate a new model, the vertex information on the two sides of the cutting surface covering the original model and the new model respectively to generate independent sub-models on the two sides of the cutting surface, and moving the sub-models to realize a cutting separation effect. Flexible and freecutting and separating effects can be achieved, the cutting experience is improved, the model cutting operation is simplified, and the cutting process performance is improved.

Description

technical field [0001] The present invention relates to the field of three-dimensional model cutting, and more specifically, relates to a cutting method based on a Unity3D model. Background technique [0002] Unity3D is a multi-platform comprehensive game development tool developed by Unity Technologies that allows players to easily create interactive content such as 3D video games, architectural visualization, and real-time 3D animation. It is a fully integrated professional game engine and is also commonly used in 3D Model building and processing. [0003] Unity3D can achieve the cutting and separating effect of the model, but in the existing technology, if the Unity3D model is to be cut and separated, the model animation is generally used to realize the fixed segmentation processing, and this type of segmentation method is fixed and the form is relatively single, which cannot satisfy The demand for freely dividing the model at will cannot achieve flexible and free cuttin...

AI Technical Summary

Problems solved by technology

[0003] Unity3D can realize the cutting and separating effect of the model, but in the existing technology, if the Unity3D model needs to be cut and separated, the model animation is generally used to realize the fixed segmentation processing, and this kind of segmentation method is fixed and the form is relatively single, which cannot satisfy The demand for freely splitting the model at will cannot achieve flexible and free cutting

At the same time, in the existing technology, after cutting the model, two sub-models are often generated and the original model is deleted, so as to achieve the cutting and separation effect. This method is not only complicated in process, but also requires more memory access times and lower performance.

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