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Research of Large Terrain Multithreading Fast Scheduling Based on OSG

LI Guang-hui,SHAO Wei,WU Dong-ya(Academy of Armored Force Engineering,Beijing 100072,China)  
In the field of 3D terrain visualization,the contradiction between massive terrain data volume and the rendering efficiency is increasingly outstanding,and much scheduling arithmetic of large terrain has been put forward.The improved four forks model was built according to characteristic of the large terrain data volume,the storage mechanism and index structure were discussed,the multithreading scheduling mechanism was constructed,and the large terrain rendering was achieved using OSG.
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