An Improved Cloud Rendering Method
Clouds play an important role for creating realistic images of outdoor scenes. Many methods have been proposed for modeling and rendering clouds. Among these methods, Dobashi et al. proposed a simple but efficient cloud rendering algorithm based on splatting algorithm and take into account single scattering in couds. This algorithm has been used in many papers to generate realistic clouds images. However, in images generated by using Dobashis method, lattice like artifact can be easily perceived. This paper describes a method to improve the quality of cloud image generated by dobashi method. We perturb the positions of cloud particles and resample the density at perturbed position within neighboring meatballs to remove the regular pattern from regular space lattice structure and adding noise to texture of billboard used in the original method.
Xiaoyan Hu Bo Sun Xiaohui Liang Jun He Yongkang Xiao Rong Xiao Wei Ren
Beijing Normal University Beijing, China Beihang University Beijing, China
国际会议
The Fifth International Conference on Image and Graphics(第五届国际图像图形学学术会议 ICIG 2009)
西安
英文
853-858
2009-09-20（万方平台首次上网日期，不代表论文的发表时间）