An accelerating rendering method of hybrid point and polygon for complex three-dimensional odels

This paper presents an accelerating hybrid rendering method for complex three-dimensional models using both points and polygons. In circumstance of current PC hardware, our rendering method that integrates advantages of both GBMR (Graphics -Based Modeling and Rendering) and PBMR (Point-Based Modeling and Rendering) works well with complex geometric models which consist of millions of small triangles. In the pre-processing phase, model faces are segmented into regions, triangles and vertex point clouds of each region are stored, and all vertices are sorted in an ascending order according to their importance degree and serialized into a linear structure. In the real-time rendering phase, view-dependent frustum culling and backface clipping are performed; different regions are rendered using triangles or points according to their distance from the viewpoint. These two phases fully utilize the parallelism nature of GPU (Graphic Process Unit) and efficiently implement a continuous multi-resolution rendering for HPPO (Hybrid Point and Polygon Object).