Research of 3D Cloud Illumination Model Based on Importance Sampling

Authors

Yonghua Xie, 1. School of Computer and Software, Nanjing University of Information science and Technology, Nanjing 210044, China;;2. Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information and Technology, Nanjing 210044, China;
Fuxing Yuan, 1. School of Computer and Software, Nanjing University of Information science and Technology, Nanjing 210044, China;;
Wang Chang, 1. School of Computer and Software, Nanjing University of Information science and Technology, Nanjing 210044, China;;

Abstract

Abstract: Currently existing 3D cloud simulation illumination models were confronted with the shortcomings such as complexity of implementation and low rendering efficiency. Herein a calculation method for illumination model based on importance sampling was proposed; Aiming at the problems of the old phase function, a new phase function was proposed to improve the rendering efficiency and quality. By the design of the importance function, the method did importance sampling in integrated interval and combined two phase functions to render the cloud. The results of the simulation show that the presented method has enhanced the rendering speed with the guarantee of rendering quality. The result of the visualization can display the physical characters of the cloud both in rendering efficiency and quality, ensuring perfect visual effect.

Recommended Citation

Xie, Yonghua; Yuan, Fuxing; and Chang, Wang (2020) "Research of 3D Cloud Illumination Model Based on Importance Sampling," Journal of System Simulation: Vol. 28: Iss. 1, Article 8.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss1/8

First Page

57

Revised Date

2014-10-14

DOI Link

https://doi.org/

Last Page

62

CLC

TP317.4

Recommended Citation

Xie Yonghua, Yuan Fuxing, Wang Chang. Research of 3D Cloud Illumination Model Based on Importance Sampling[J]. Journal of System Simulation, 2016, 28(1): 57-62.