基于两步法的交互式纹理映射研究  

Study on interactive texture mapping based on two-step texture mapping

作　　者：唐晶磊[1] 景旭[1] 何东健[1] 

机构地区：[1]西北农林科技大学信息工程学院,陕西杨凌712100

出　　处：《计算机工程与设计》2008年第8期2062-2064,共3页Computer Engineering and Design

基　　金：陕西省自然科学基金项目(2004D12)

摘　　要：两步纹理映射方法将映射过程分解为映射与映射两步进行。针对两步纹理映射方法研究中复杂物体表面纹理映射时出现的变形问题,采用样条曲面代替简单的中间映射媒介,用它近似地包裹在三维物体的外表面,将纹理通过某种方式映射到曲面上实现参数化。基于两步映射方法提出了一种交互式纹理映射的算法。该算法允许用户交互选择贴图范围,通过控制样条曲面实现对映射效果的调整。实验结果表明,该算法可显著提高纹理映射质量,纹理贴图效果良好。The process of two part texture mapping is composed of S mapping and O mapping. Aiming to deal with the distortion problem on surface of complicated objects among two part texture mapping research, using B-spline curved surface which approximately wraps in the three-dimensional body outside surface replace the middle mapping medium, and it maps in the curved surface the texture by some way to realize the pararrieter. An algorithm depiction of interactive texture mapping method is proposed based on the two parttexture mapping method. It allowed the user choice the mapping scope interactive, and adjusted the mapping effect through controlling the B-spline curved surface. Experimental result shows that the quantity of texturing mapping is improved and satisfactory mapping effect is given.

关 键 词：纹理映射 中介面 样条曲面 两步法纹理映射 映射 纹理变形 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]