关键词: 虚拟场景, 实时绘制, 复杂产品模型, 八叉树

Abstract: In order to improve the efficiency of real-time rendering, a method to extract the model information of OpenSceneGraph using scene model dividing up and view frustum culling based on Octree is proposed. This method has a better performance when visualizing the detail scene of virtual environment. Pagelod, which is based on DatabasePager, is also applied to implement the dynamic data translation, reduce the I/O overload greatly and satisfy real-time requirement for complex product model in virtual environment under limited hardware resources.

Key words: virtual environment, real-time rendering, complex product model, octree