| 大规模场景中实时阴影的绘制 |
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| 引用本文： | 任鸿翔,尹勇,金一丞. 大规模场景中实时阴影的绘制[J]. 大连海事大学学报(自然科学版), 2008, 34(1): 58-60 |
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| 作者姓名： | 任鸿翔 尹勇 金一丞 |
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| 作者单位： | 大连海事大学,航海学院,辽宁,大连,116026;大连海事大学,航海学院,辽宁,大连,116026;大连海事大学,航海学院,辽宁,大连,116026 |
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| 基金项目： | 国家“九七三”计划资助项目(2002CB312103) |
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| 摘 要： | 为解决大规模场景中绘制实时阴影的问题,提出优化的阴影体算法.通过访问场景模型的最简单LOD,获得轮廓边缘的检测数据.采用删除面内边的方法有效提高轮廓边缘的检测效率.根据模型的位置,选用基于CPU的Z-Pass方法或基于顶点着色器的Z-Fail方法渲染阴影.优化算法在航海模拟器大规模场景的应用表明,利用该算法绘制的阴影效果满足实时性和真实感的要求.
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| 关 键 词： | 大规模场景 实时阴影绘制 阴影体算法 |
| 文章编号： | 1006-7736（2008）01-0058-03 |
| 收稿时间： | 2007-07-30 |
| 修稿时间： | 2007-07-30 |
Real-time shadow rendering in large-scale scene |
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| REN Hong-xiang,YIN Yong,JIN Yi-cheng. Real-time shadow rendering in large-scale scene[J]. Journal of Dalian Maritime University, 2008, 34(1): 58-60 |
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| Authors: | REN Hong-xiang YIN Yong JIN Yi-cheng |
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| Abstract: | An optimized shadow volume algorithm was developed to render shadow in large-scale scene.Detection data was obtained by accessing the simplest LOD to determine silhouette edge.Redundant internal edge was removed to improve detection efficiency.Shadows were rendered using CPU based Z-pass algorithm or Z-fail algorithm within vertex shader according to model's position.Tests on large-scale scene of the marine simulator show that the proposed algorithm can meet the requirements of real-time and reality for shadow rendering. |
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| Keywords: | large-scale scene real-time shadow rendering shadow volume algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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