基于顶点聚类的多纹理三维模型简化算法  

Simplification Algorithm of Multi-texture 3D Models Based on Vertex Clustering

作　　者：刘天漪 甘麟露 LIU Tianyi;GAN Linu(93383 Troops,Mudanjiang 175000,China;31682 Troops,Lanzhou 730000,China)

机构地区：[1]93383部队,黑龙江牡丹江175000 [2]31682部队,甘肃兰州730000

出　　处：《测绘与空间地理信息》2023年第7期221-224,共4页Geomatics & Spatial Information Technology

摘　　要：基于顶点聚类,本文提出了一种针对COLLADA规范的多纹理三维模型简化算法。首先介绍了COLLADA模型标准;其次介绍了算法步骤,着重介绍了基于顶点聚类的模型简化算法的思想和重点内容,特别是简化后的几何元素与纹理贴图的重新映射;最后通过实验证明,采用该算法化简的模型能够较好地保持原三维模型的可视化效果,特别对多模型的三维场景,既压缩了数据量,又基本保留了三维场景的整体轮廓,在实际应用中可以提高三维场景可视化的效率。This paper presents a multi-texture 3D model simplification algorithm based on COLLADA specification.The paper first introduces the COLLADA model standard,then introduces the algorithm steps,and focuses on the idea and key contents of the model simplification algorithm based on vertex clustering,especially the remapping of simplified geometric elements and texture mapping.Finally,experiments show that the simplified model using this algorithm can better maintain the visualization effect of the original 3D model,especially for the multi-model 3D scene.It not only compresses the amount of data,but also basically retains the overall contour of the 3D scene,which can improve the efficiency of 3D scene visualization in application.

关 键 词：三维场景 模型化简 顶点聚类 纹理映射 COLLADA规范 

分 类 号：P209[天文地球—测绘科学与技术]