摘要
结合GPU(Graphic Processing Unit)的特点,以GeoMipMapping算法为基础,提出了一种充分发挥GPU性能的Patch-LOD地形绘制模型:层次索引模板。层次索引模板通过一组常驻显存的索引缓存序列,隐式地表示地形块细节层次。另外以层次索引模板为基础,在GPU上实现了裂缝消除。通过衔接索引模板扩充层次索引模板,隐式消除了不同分辨率地形块拼接时产生的裂缝。
A Patch-LOD landscapes＇ rendering algorithm is introduced this thesis, which takes full use of GPU based on GeoMipMapping method：HIT（ Hierarchical Index Templet）. It represents terrain blocks＇ detail levels by using an index buffer sequence, which resides in video memeory. In addition, based on the HIT algorithm the thesis solves the cracking problem on GPU. The crack between adjacent terrain blocks with different resolution is eliminated by extending the HIT with joint index templet.
出处
《苏州大学学报（工科版）》
CAS
2008年第3期1-5,共5页
Journal of Soochow University Engineering Science Edition (Bimonthly)
基金
国家自然科学基金资助项目(编号60775045)
江苏省自然科学基金资助项目(编号BK2005027)
关键词
层次索引模板
索引缓存序列
衔接索引模板
hierarchical index templet
index buffer sequence
joint index templet
