关键词: 树木模型 三维分枝模型 随机繁衍L系统 多分辨率

Abstract:

The generation of virtual natural scenes is a challenging topic in computer graphics. As a very important part of natural scenery, tree simulation has  attracted much attention A 3D geometric modeling method for botanical trees is presented. This method is on the basis of the 3D geometric modeling method and the parametric OL-systenm It improves the way to create new branches and takes account to several growth regulations, such as sunlight and gravit ation The LOD technology is used, and selecting the tree models of different complexities according to different distances improves the speed of rendering .

Key words: tree model, three-dimensional geometric modeling method, parametric OL-system muifiresolution