| 基于改进四叉树算法的VR场景实时渲染 |
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| 引用本文： | 贺薪宇.基于改进四叉树算法的VR场景实时渲染[J].河南纺织高等专科学校学报,2008(3). |
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| 作者姓名： | 贺薪宇 |
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| 作者单位： | 北华大学计算机科学技术学院; |
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| 摘 要： | 论述了一种基于四叉树结构的LOD技术对虚拟场景快速渲染的方法,以提高VR场景的实时渲染速度.通过建立四叉树结构将场景分割为规则的多个小块,利用线索法改进了以往递归遍历四叉树的过程,提高了遍历速度.对于边界的裂缝处理,文中采取将距离阈值加入到节点评价系统中,通过缩减边和剖分的方法将其消除.通过实验分析了此算法的效率.
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| 关 键 词： | LOD 四叉树分割 节点评价系统 裂缝消除 |
Real-time Rendering of VR Scene Based on Improved Quad-tree Algorithm |
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| HE Xinyu.Real-time Rendering of VR Scene Based on Improved Quad-tree Algorithm[J].Journal of Henan Textile College,2008(3). |
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| Authors: | HE Xinyu |
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| Affiliation: | Computer Science and Technology College;Beihua University;Jilin 132011;China |
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| Abstract: | The paper discusses a method of quick rendering for VR scene applying LOD based on Quad Tree data structure in order to enhance the speed of rendering.A quad-tree data structure is made to divide the scene into quantities of patches,and is traversed adopting an improved non-recursive procedure.The process of traversal has been improved by threaded binary trees.The threshold value is involved in valuation system of node,therefore the details have been more meticulous recovering the cracks by the way to cut t... |
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| Keywords: | LOD quad-tree dividing valuation system cracks recovering |
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