An improved splat-based ray tracing for point-based objects

摘要

This paper aims to improve the process of photo-realistic images production in matter of quality of the point-based scenes rendered by splats using the ray tracing technique, where we exploit the intrinsic overlap of the splats to get per-pixel shading that is very close to Phong shading (in the case of polygonal meshes), without an additional preprocessing phase (no normal field computation for each splat). Moreover, this work is mainly introduced to have more accurate rendering on the edges and sharp regions. Note that our model does not require point cloud with high density, but they have to be hole-free and closed. The quality of the resulted images proves the efficiency of the proposed approach.