一种基于符号形式文法的三维建模方法

A Method of 3D Modeling Based on Symbolic Formal Grammar

在虚拟场景中模型数量激增的情况下,现有建模技术的生产代价随之大幅上升。基于符号形式文法的三维建模是一种新颖的建模方法,该方法从现实世界抽象出模型的文法产生式规则,通过产生式规则的叠加演算,提供一种从基础几何形状迭代生成目标模型的过程。实现产生式规则的模型生成器允许用户采用CGA脚本描述规则,脚本为输入,三维模型为输出。实验证明:基于该方法的模型生成器其输出具有较高质量可视化效果和模型细节,其实现原理有利于模型的重用与重构;在批量三维场景建模场合,该方法有较高生产效率。

The rapid growth in the number of models has led to the great increase in the cost in the case of using existing technologies to generate virtual scene. Three-dimensional modeling based on symbolic grammar is a novel modeling method, which abstracts the grammar productions of the model from the real world, and calculates the target model from the base shape iteration by deriving and stacking these rules of production. The model generator that implements the production rules allows the user to use the CGA script to describe the rules, with the script being the input, and the Three-dimensional model the output. The experimental results show that the output of the model generator had higher quality of visualization effect and model detail. The realization principle is beneficial to the reuse and reconstruction of the model. In the case of batch Three-dimensional scene modeling, this method has higher production efficiency.