A path reuse method for specular surface reflection in Monte Carlo path tracing

Chang Yu Tang, Chun Fa Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Physically based image synthesis aims to render realistic images, which is widely used in many industries, e.g., computer-generated imagery (CGI) in the movie industry, 3D models preview in the architecture and the design industry, and of course, 3D scenes in the computer game industry. In the real world, the information of light is infinite; therefore, sampling is necessary for light contribution estimation. How to deal with global illumination effects plays an important role in whether the rendered image looks real or not. Many sampling methods reveal different features of the scene. Bidirectional path tracing, one of the Monte Carlo path tracing methods, is known for its rapid convergence. However, due to its innate limitation, bidirectional path tracing cannot handle some difficult cases. The most notorious one is specular-diffuse-specular (SDS) paths. In this paper, we introduce an alternative path reuse method based on bidirectional path tracing to deal with the SDS problem during the operation.

Original languageEnglish
Title of host publicationProceedings of the 2017 IEEE International Conference on Applied System Innovation
Subtitle of host publicationApplied System Innovation for Modern Technology, ICASI 2017
EditorsTeen-Hang Meen, Artde Donald Kin-Tak Lam, Stephen D. Prior
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1759-1762
Number of pages4
ISBN (Electronic)9781509048977
DOIs
Publication statusPublished - 2017 Jul 21
Event2017 IEEE International Conference on Applied System Innovation, ICASI 2017 - Sapporo, Japan
Duration: 2017 May 132017 May 17

Publication series

NameProceedings of the 2017 IEEE International Conference on Applied System Innovation: Applied System Innovation for Modern Technology, ICASI 2017

Other

Other2017 IEEE International Conference on Applied System Innovation, ICASI 2017
CountryJapan
CitySapporo
Period17/5/1317/5/17

Keywords

  • Global illumination and Monte Carlo integration
  • Path tracing

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture
  • Safety, Risk, Reliability and Quality
  • Mechanical Engineering
  • Media Technology
  • Health Informatics
  • Instrumentation

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  • Cite this

    Tang, C. Y., & Chang, C. F. (2017). A path reuse method for specular surface reflection in Monte Carlo path tracing. In T-H. Meen, A. D. K-T. Lam, & S. D. Prior (Eds.), Proceedings of the 2017 IEEE International Conference on Applied System Innovation: Applied System Innovation for Modern Technology, ICASI 2017 (pp. 1759-1762). [7988282] (Proceedings of the 2017 IEEE International Conference on Applied System Innovation: Applied System Innovation for Modern Technology, ICASI 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICASI.2017.7988282