In this paper, a novel hybrid multiresolution approach is proposed to efficiently render highly detailed objects based on the respective merits of point-based and polygon-based rendering. Both point and polygon are tightly integrated into the uniform structure of P-Quadtrees, which are constructed from geometry images. While traversing the P-Quadtrees in rendering, the part of surface that faces the viewer can be rendered by coarser quad mesh to reduce the numbers of rendering primitives. The shading details can be enhanced by hardware accelerated normal mapping. The view-dependent LOD (level of detail) selects the finer hierarchy on silhouette, which is rendered by points. The rendering efficiency of large-scale model is greatly improved while the visual effect at both the surfaces and the silhouette is guaranteed.