Visualization Technique is a new application-driven technique. The demand for visualization technique grows with the ever-development of computer science. Forest landscape visualization has been widely used in the fields of landscape Design, forestry layout, etc.. In narrow sense, the forest landscape visualization technique can be divided into two parts: the modeling of trees and forest landscape visualized simulation. This thesis focus on the introduction and analysis of two advanced software in this field: Onyx Treemaker and Visual Nature Studio. This thesis studied topics about theory, application and programming of forest landscape visualization technique. Also a structure of forest landscape visualization system is issued. And the programming of image transparent, which is one of the key techniques of visualization, is carried out during the study of this thesis. The ideas and methods for further study in this field have been provided.
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