Screen space global illumination with reusing cached information

Yu Sheng Lin, Der Lor Way, Zen-Chung Shih

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

Abstract

Simulating global illumination has received significant attention in computer graphics research for many years. Many effects provide important visual cues that help viewers understand spatial relationships, and drastically improve the realism of a rendered scene, such as diffuse inter-reflection, caustics, refractions and soft shadows. For many real-time applications, computing global illumination in real time is significant importance. This paper proposes an algorithm combining reflective shadow maps, screen space ambient occlusion and percentage closer filtering for realistic image synthesis. Our method changes sampling patterns and accumulates the results of previous frames to improve the quality. In order to achieve high performance, this paper modified the reverse re-projection technique to converge information during camera movement. Finally, the proposed method is demonstrated with various experimental results. The performance is also shown to be good for large-scale scenes at interactive frame rates.

Original languageEnglish
Title of host publicationWMSCI 2015 - 19th World Multi-Conference on Systemics, Cybernetics and Informatics, Proceedings
EditorsNatalja Lace, Belkis Sanchez, Nagib C. Callaos, Michael Savoie, Oleg Goriachkin
PublisherInternational Institute of Informatics and Systemics, IIIS
Pages146-151
Number of pages6
ISBN (Electronic)9781941763292
StatePublished - 1 Jan 2015
Event19th World Multi-Conference on Systemics, Cybernetics and Informatics, WMSCI 2015 - Orlando, United States
Duration: 12 Jul 201515 Jul 2015

Publication series

NameWMSCI 2015 - 19th World Multi-Conference on Systemics, Cybernetics and Informatics, Proceedings
Volume1

Conference

Conference19th World Multi-Conference on Systemics, Cybernetics and Informatics, WMSCI 2015
CountryUnited States
CityOrlando
Period12/07/1515/07/15

Keywords

  • Ambient occlusion
  • Global illumination
  • Indirect illumination
  • Reflective shadow maps
  • Shadow maps
  • Virtual point lights.

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  • Cite this

    Lin, Y. S., Way, D. L., & Shih, Z-C. (2015). Screen space global illumination with reusing cached information. In N. Lace, B. Sanchez, N. C. Callaos, M. Savoie, & O. Goriachkin (Eds.), WMSCI 2015 - 19th World Multi-Conference on Systemics, Cybernetics and Informatics, Proceedings (pp. 146-151). (WMSCI 2015 - 19th World Multi-Conference on Systemics, Cybernetics and Informatics, Proceedings; Vol. 1). International Institute of Informatics and Systemics, IIIS.