| 一种基于Shadow Mapping的阴影生成改进算法 |
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| 引用本文： | 谭同德,许绘香,赵红领,余晓霞. 一种基于Shadow Mapping的阴影生成改进算法[J]. 计算机工程与应用, 2008, 44(32): 165-168. DOI: 10.3778/j.issn.1002-8331.2008.32.049 |
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| 作者姓名： | 谭同德 许绘香 赵红领 余晓霞 |
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| 作者单位： | 郑州大学,信息工程学院,郑州,450052;郑州大学,信息工程学院,郑州,450052;中州大学,信息工程学院,郑州,450044 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，河南省自然科学基金 |
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| 摘 要： | Shadow Mapping算法是目前广泛应用的阴影渲染方法，但该方法容易产生走样，特别是不能满足大规模场景中阴影的真实性和实时性要求。对此，提出一种利用平行面分割的改进Shadow Mapping算法，减少了算法运行时的缓冲空间，提高了阴影质量，尤其适合于动态大规模环境中实时阴影的生成。并用VS2005和OpenSceneGraph实现了算法的绘制过程，达到满意的视觉效果和生成速度。
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| 关 键 词： | 阴影映射(Shadow Mapping)算法 大规模 虚拟 分割 |
| 收稿时间： | 2007-12-10 |
| 修稿时间： | 2008-2-27 |
Improved arithmetic of shadow generation based on Shadow Mapping |
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| TAN Tong-de,XU Hui-xiang,ZHAO Hong-ling,YU Xiao-xia. Improved arithmetic of shadow generation based on Shadow Mapping[J]. Computer Engineering and Applications, 2008, 44(32): 165-168. DOI: 10.3778/j.issn.1002-8331.2008.32.049 |
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| Authors: | TAN Tong-de XU Hui-xiang ZHAO Hong-ling YU Xiao-xia |
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| Affiliation: | 1.College of Information Engineering，Zhengzhou University，Zhengzhou 450052，China 2.College of Information Engineering，Zhongzhou University，Zhengzhou 450044，China |
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| Abstract: | Shadow Mapping approach is one of the most widely used way of shadow generation,but it usually suffers from alias- ing problem,and can not meet the requirement of reality and real-time performance in the shadow generation of large-scale scene.So,this paper proposes an improved method based on Shadow Mapping,which can produce real-time shadowing effects with less texture memory but significant improvement of shadow qualities,especially for the dynamic and large-scale virtual environ- ments.The improved algorithm is implemented in VS2005 and OpenSceneGraph,and it can satisfy the requirement of quality and real-time performance. |
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| Keywords: | Shadow Mapping large-scale virtual split |
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