Realistic Rendering of Trees Based on Environmental Features and Spec ies
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    Abstract:

    Generation of photo-realistic images of virtual nature scenes is a challenging topic in computer graphics. As a very important part of natural scenery, realist ic rendering of trees has attracted much attention. Trees have various types wit h different shapes and due to their complex structures, realistic modelings, ren dering and storage of trees are always a tedious task. To tackle the problem, di fferent rendering strategies ae employed according to different types of trees a nd different scenes. For broadleaf, the z-buffer shadow generation method is us ed based on primary functions of OpenGL, for conifer, a ray tracing algorithm in cluding texel-rendering technique is used, and for trees in the far distance, v olumetric texture mapping is employed in terms of ray tracing and volume renderi ng technique. The images produced show that the feasibility and validity of the proposed rendering techniques.

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陈彦云,严涛,张晓鹏,吴恩华.基于分类及环境特征的树木真实感绘制.软件学报,2001,12(1):65-73

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History
  • Received:August 09,1999
  • Revised:October 20,1999
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