Importance Sampling of Many Lights on the GPU

Pierre Moreau; Petrik Clarberg

doi:10.1007/978-1-4842-4427-2_18

Importance Sampling of Many Lights on the GPU

Pierre Moreau, Petrik Clarberg

NVIDIA

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

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.

Original language	English
Title of host publication	Ray Tracing Gems
Editors	Eric Haines, Tomas Akenine-Möller
Publisher	Apress
Chapter	18
Pages	255
Number of pages	283
ISBN (Electronic)	978-1-4842-4427-2
ISBN (Print)	978-1-4842-4426-5
DOIs	https://doi.org/10.1007/978-1-4842-4427-2_18
Publication status	Published - 2019 Mar 18

Subject classification (UKÄ)

Computer Sciences

Access to Document

10.1007/978-1-4842-4427-2_18Licence: CC BY-NC-ND

Cite this

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title = "Importance Sampling of Many Lights on the GPU",

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.",

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AU - Clarberg, Petrik

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AB - 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.

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UR - https://www.scopus.com/pages/publications/85071499777

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ER -

Importance Sampling of Many Lights on the GPU

Abstract

Subject classification (UKÄ)

Access to Document

Other files and links

Fingerprint

Towards Fully Dynamic Surface Illumination in Real-Time Rendering using Acceleration Data Structures

Empirical Heterogeneous System Modeling for Efficient Real-Time Rendering

Ray Tracing Gems 1.1 - Importance Sampling of Many Lights on the GPU

Cite this

Importance Sampling of Many Lights on the GPU

Abstract

Subject classification (UKÄ)

Access to Document

Other files and links

Fingerprint

Research output

Towards Fully Dynamic Surface Illumination in Real-Time Rendering using Acceleration Data Structures

Projects

Empirical Heterogeneous System Modeling for Efficient Real-Time Rendering

Activities

Ray Tracing Gems 1.1 - Importance Sampling of Many Lights on the GPU

Cite this