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宏三角形的大规模地形漫游算法
A Marco-Triangle-Based Algorithm for Large Terrain Rendering
【摘要】 提出了一种基于了"宏三角形"网格的地形漫游算法(Hyper-ROAM)。该算法可以充分利用现代GPU的硬件特点,实现大规模地形数据的实时连续细节层次渲染。通过改变该算法中的宏三角形内部复杂度,传统的ROAM算法成为了Hyper-ROAM算法的一个特例。实验证明ROAM算法并非是Hyper-ROAM算法所有特例中效率最高的一种,适当选择宏三角形的秩,可以大大提高渲染效率。
【Abstract】 In this paper,a terrain render algorithm is developed based on marco-triangle conception,which called Hyper real-time optimally adapting meshes algorithm(Hyper-ROAM).The algorithm can take full advantage of the hardware features of modern GPU,realizing large-scale terrain for real-time continuous level of detail rendering.By adjusting the complexity of macro-triangle,the traditional ROAM becomes a special case of Hyper-ROAM algorithm space.Our tests shown that the traditional ROAM is usually not the best case.It is more efficient to select a proper complexity of the marco-triangles.
【Key words】 continuous lod； marco-triangle； real-time optimally adapting meshes algorithm； real-time rendering； terrain rendering；
- 【文献出处】 电子科技大学学报 ,Journal of University of Electronic Science and Technology of China , 编辑部邮箱 ,2008年01期
- 【分类号】TP391.41
- 【被引频次】8
- 【下载频次】78