Interactive point-based painterly rendering

Nonphoto realistic rendering (NPR) methods have been proposed for more than ten years in the computer graphic field. Separately, within past few years, several algorithms for rendering surfaces from their points, or point sets directly, were proposed. But so far, no NPR like painterly rendering has been proposed for point sets. In this paper, we propose an interactive point-based painterly rendering algorithm. The interactive frame rate is achieved by using both a point-based approach to represent the geometry of the surface and an image-based approach for the rendering. Our algorithm achieves interactive rates and outperforms mesh-based previously reported results. A by-product of our work, we also provide a faster, higher quality IBPR algorithm. We have showed that using most sophisticated statistical approach, we could improve the rendering quality.