Pseudo-coloring occlusion culling

A novel algorithm called Pseudo-Coloring Occlusion Culling (PCOC) approach was proposed for complicated models and integrated with an open source 3D graphics engine. In the PCOC, a complicated model was tessellated to a simplified model and the simplified model was rendered to a texture with pseudo-colors in real-time. Then, according to the pseudo-coloring texture, the visibility parts of the complicated model were determined automatically. In this paper, the efficient real-time pseudo-coloring method was applied in an automobile display system. The result indicated that the pseudo-coloring algorithm reduced 45% invisible triangles, increased 63% of frame rate and improved the performance of real-time rendering.