Real-time diffuse global illumination using radiance hints

  • Authors:
  • Georgios Papaioannou

  • Affiliations:
  • Athens University of Economics and Business

  • Venue:
  • Proceedings of the ACM SIGGRAPH Symposium on High Performance Graphics
  • Year:
  • 2011

Quantified Score

Hi-index 0.00

Visualization

Abstract

GPU-based interactive global illumination techniques are receiving an increasing interest from both the research and the industrial community as real-time graphics applications strive for visually rich and realistic dynamic three-dimensional environments. This paper presents a fast new diffuse global illumination method that generates a sparse set of low-cost radiance field evaluation points (radiance hints) and computes an arbitrary number of diffuse inter-reflections within a given volume. The proposed approximate technique combines ideas from exiting grid-based radiance caching techniques with reflective shadow maps as well as a stochastic scheme for visibility calculations, in order to achieve high frame rates for multiple light bounces.