This article established the mechanism of scene chart management and Viewing Volume cut and designed the LOD model, then realized real-time display and alternating operation of the 3-d scene.
建立了场景图管理机制和视景体裁剪机制，设计了LOD模型，实现了三维场景的实时显示和交互操作。
This article established the mechanism of scene chart management and Viewing Volume cut and designed the LOD model, then realized real-time display and alternating operation of the 3-d scene.
建立了场景图管理机制和视景体裁剪机制，设计了LOD模型，实现了三维场景的实时显示和交互操作。
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