ISSN 2079-3537      

 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                             





Scientific Visualization, 2018, volume 10, number 4, pages 75 - 92, DOI: 10.26583/sv.10.4.06

Visualization of ray propagation in physically accurate lighting simulation

Authors: B.Kh. Barladyin1, E.D. Birukov2, L.Z. Shapiro3, A.G. Voloboy4

Keldysh Institure of Applied Mathematics of RAS, Moscow, Russia

1 ORCID: 0000-0002-2391-2067, bbarladian@gmail.com

2 ORCID: 0000-0003-4297-6813, birukov@gin.keldysh.ru

3 ORCID: 0000-0002-6350-851X, pls@gin.keldysh.ru

4 ORCID: 0000-0003-1252-8294, voloboy@gin.keldysh.ru

 

Abstract

The work is devoted to the issues of visualization of the trajectories of light rays during physically correct lighting simulation of its distribution in the scene by the Monte Carlo ray tracing. It is proposed to save the rays calculated in the process of tracing to a file that can be considered as a three-dimensional map of the rays. Multi-threaded algorithms have been developed for both the creation of such ray maps and their subsequent analysis. The implementation of the proposed algorithms on multi-core computers has shown their high efficiency. Particular attention is paid to the integration of the developed algorithms with the CATIA CAD system.

 

Keywords: realistic images, global illumination, optic simulation, interactive scene analysis, illumination maps, three-dimensional ray maps, Monte Carlo raytracing, ray visualization.