关键词: 场景渲染, 八叉树, 模型遮挡裁剪, 面向对象, 虚拟维修

Abstract: In order to accelerate the rendering of large-scale virtual scenes, a rendering method based on object-oriented octree is used. The method combines the object-oriented technology with the traditional octree technology, an object-oriented octree is used to subdivide the virtual scene, so as to manage it. The minimum parts of the object structure tree are regarded as minimum storage unit, the method uses leaves node to save object information, reduces storage volume and processing time of the object-oriented otree, the calculation burden of algorithm is greatly reduced. On the basis of the object-oriented otree, the model culling algorithm is used to cull the models which belong to the vision, the algorithm decreases the number of objects which are rendered, and improves the rendering rate. Through rendering experiment of the virtual aircraft maintenance scene, this approach is proved to be very effective.

Key words: scene rendering, octree, model culling, object-oriented, virtual maintenance