面对场景的庞大数据量，如何以更好的效果和更高的效率表现场景，是景观微机虚拟技术中面临的主要问题。

Facing the enormous scene data, How to render the scene with better effect and more efficiently, is the main problem in virtual landscape technology on PC.

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研制出三维模型自动简化预处理模块，能有效降低人工简化编辑大数据量三维场景的作业强度。

The main works and innovations of this dissertation are as follows:a) The preprocessing module of automatic simplification for 3D models is accomplished.

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研制出三维模型自动简化预处理模块，能有效降低人工简化编辑大数据量三维场景的作业强度。

The main works and innovations of this dissertation are as follows:a) The preprocessing module of automatic simplification for 3D models is accomplished.

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