| 基于MIP-MAP预过滤的区域取样球面纹理映射 |
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| 引用本文： | 顾耀林,周建林.基于MIP-MAP预过滤的区域取样球面纹理映射[J].计算机工程与设计,2007,28(14):3410-3412. |
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| 作者姓名： | 顾耀林 周建林 |
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| 作者单位： | 江南大学,信息工程学院,江苏,无锡,214122 |
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| 摘 要： | 球面是常见的二次曲面.它使用曲面分割原理对球面进行分割,并应用区域取样方法实现了对球面的纹理映射.为了减少计算花费,采用MIP-MAP预过滤纹理,并改进了在每一个可选的MIP-MAP层的取样率,以避免在较低l层欠取样,在较高l 1层过取样.这种方法能取得理想的纹理映射效果,有效解决走样问题.
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| 关 键 词： | 纹理映射 曲面分割 区域取样 反走样 预过滤 各向异性过滤 预过滤 应用区域 过取样 球面 纹理映射 based sampling area footprint texture mapping 问题 有效解决 效果 取样方法 取样率 改进 计算 行分割 原理 曲面分割 |
| 文章编号： | 1000-7024（2007）14-3410-03 |
| 修稿时间： | 2006-06-21 |
Sphere texture mapping using footprint area sampling based on MIP-MAP prefiltering |
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| GU Yao-lin,ZHOU Jian-lin.Sphere texture mapping using footprint area sampling based on MIP-MAP prefiltering[J].Computer Engineering and Design,2007,28(14):3410-3412. |
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| Authors: | GU Yao-lin ZHOU Jian-lin |
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| Affiliation: | School of Information, Southern Yangtze University, Wuxi 214122, China |
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| Abstract: | Sphere is a kind of common quadric surfaces.It uses the principles of quadric surfaces subdivision to subdivide the sphere and applies the footprint area sampling method on sphere texture mapping.Prefiltering based on MIP-MAP is used to reduce the computing cost.The sampling rate is adapted in each chosen MIP-MAP level separately to avoid undersampling in level and oversampling in level 1.This method can effectively obtain high quality texture mapping images and resolve the problems of aliasing. |
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| Keywords: | texture mapping quadric surfaces subdivision footprint area sampling antialiasing prefiltering anisotropic filtering |
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