摘要： 在实际应用中，需要细节层次模型来表示场景中物体的不同细节层次，并降低数据量和复杂度；同时也希望以较精细的网格来表示离视点较近的物体，而以较粗糙的网格表示离视点较远的物体，即实现视相关。基于体积误差与三角形折叠操作，研究了渐进网格(VDPM)的简化算法，对模型的几何数据进行简化预处理，实现了与视点相关的多层次细节模型。
关键词:
渐进网格,
视相关,
层次细节,
三角形折叠
Abstract: A view-dependent multi-level of detail model based on triangle collapse and calculation of volume error is presented. This algorithm uses LOD model to render the 3D scene. LOD model can render the 3D scene with different level of detail and simplify the geometrical data.
Key words:
Progressive mesh,
View-dependent,
Level of detail (LOD),
Triangle collapse
赵争鸣;顾耀林. 基于三角形折叠的视相关多层次细节模型[J]. 计算机工程, 2007, 33(04): 277-279.
ZHAO Zhengming; GU Yaolin. A View-dependent Multi-level of Detail Model Based on Triangle Collapse[J]. Computer Engineering, 2007, 33(04): 277-279.