NDLI: A meshless hierarchical representation for light transport

Content Provider	ACM Digital Library
Author	Kontkanen, Janne Zwicker, Matthias Sillion, François X. Aila, Timo Durand, Frédo Lehtinen, Jaakko Turquin, Emmanuel
Copyright Year	2008
Abstract	We introduce a meshless hierarchical representation for solving light transport problems. Precomputed radiance transfer (PRT) and finite elements require a discrete representation of illumination over the scene. Non-hierarchical approaches such as per-vertex values are simple to implement, but lead to long precomputation. Hierarchical bases like wavelets lead to dramatic acceleration, but in their basic form they work well only on flat or smooth surfaces. We introduce a hierarchical function basis induced by scattered data approximation. It is decoupled from the geometric representation, allowing the hierarchical representation of illumination on complex objects. We present simple data structures and algorithms for constructing and evaluating the basis functions. Due to its hierarchical nature, our representation adapts to the complexity of the illumination, and can be queried at different scales. We demonstrate the power of the new basis in a novel precomputed direct-to-indirect light transport algorithm that greatly increases the complexity of scenes that can be handled by PRT approaches.
Starting Page	1
Ending Page	9
Page Count	9
File Format	PDF
ISSN	07300301
e-ISSN	15577368
DOI	10.1145/1360612.1360636
Volume Number	27
Issue Number	3
Journal	ACM Transactions on Graphics (TOG)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2008-08-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Global illumination Meshless basis functions Pre-computed radiance transfer Scattered data
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A meshless hierarchical representation for light transport

Meshless Finite Elements for Hierarchical Global Illumination

A meshless hierarchical representation for light transport (2008)

A Meshless Hierarchical Representation for Light Transport (2008)

A framework for precomputed and captured light transport

Meshless Finite Elements for Hierarchical Global Illumination

All-Frequency Direct Illumination with Vectorized Visibility

Modular Radiance Transfer

Precomputed local radiance transfer for real-time lighting design

A meshless hierarchical representation for light transport

Similar Documents

A meshless hierarchical representation for light transport

Meshless Finite Elements for Hierarchical Global Illumination

A meshless hierarchical representation for light transport (2008)

A Meshless Hierarchical Representation for Light Transport (2008)

A framework for precomputed and captured light transport

Meshless Finite Elements for Hierarchical Global Illumination

All-Frequency Direct Illumination with Vectorized Visibility

Modular Radiance Transfer

Precomputed local radiance transfer for real-time lighting design

A meshless hierarchical representation for light transport