Importance Sampling of Many Lights on the GPU

Research output: Chapter in Book/Report/Conference proceedingBook chapter

Abstract

The introduction of standardized APIs for ray tracing, together with hardware acceleration, opens up possibilities for physically based lighting in real-time rendering. Light importance sampling is one of the fundamental operations in light transport simulations, applicable to both direct and indirect illumination. This chapter describes a bounding volume hierarchy data structure and associated sampling methods to accelerate importance sampling of local light sources. The work is based on recently published methods for light sampling in production rendering, but it is evaluated in a real-time implementation using Microsoft DirectX Raytracing.

Details

Authors
Organisations
External organisations
  • Nvidia Inc.
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Computer Science
Original languageEnglish
Title of host publicationRay Tracing Gems
EditorsEric Haines, Tomas Akenine-Möller
PublisherApress
Chapter18
Pages255
Number of pages283
ISBN (Electronic)978-1-4842-4427-2
ISBN (Print)978-1-4842-4426-5
Publication statusPublished - 2019 Mar 18
Publication categoryResearch
Peer-reviewedYes

Related projects

Pierre Moreau, Michael Doggett & Jacob Munkberg

Swedish Research Council

2015/09/072022/01/06

Project: DissertationIndividual research project

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Related activities

Moreau, P. (Presenter)
2019 Jul 31

Activity: Talk or presentationInvited talk

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