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Interactive light transport editing for flexible global illumination

Published: 05 August 2007 Publication History

Abstract

The limited flexibility imposed by the physics of light transport has been a major hurdle in the use of global illumination in production rendering. It has been a common practice in computer cinematography to write custom shaders [Christensen 2003] or manually edit rendered images [Thacker 2006] to achieve lighting effects desired by directors. This process is lengthy, cumbersome and too technical for artists. To remove this hurdle, we propose a novel interface that allows users to modify light transport in a scene. Users can adjust effects of indirect lighting cast by one object onto another or paint indirect illumination on surfaces. As opposed to previous approaches such as [Schoeneman et al. 1993] our work departs from solving optimization problems in favor of more user control.

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References

[1]
Christensen, P. 2003. Global illumination and all that. In ACM SIGGRAPH Course 9 (RenderMan, Theory and Practice).
[2]
Hašan, M., Pellacini, F., and Bala, K. 2006. Direct-to-indirect transfer for cinematic relighting. ACM Transaction on Graphics 25, 3, 1089--1097.
[3]
Schoeneman, C., Dorsey, J., Smits, B., Arvo, J., and Greenberg, D. 1993. Painting with light. In SIGGRAPH'93 Proceedings, 143--146.
[4]
Thacker, J. 2006. How can I take my renders to the next level of realism? 3D Worlds (June).

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  • (2011)Illumination decomposition for material recoloring with consistent interreflectionsACM SIGGRAPH 2011 papers10.1145/1964921.1964938(1-10)Online publication date: 7-Aug-2011

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cover image ACM Conferences
SIGGRAPH '07: ACM SIGGRAPH 2007 sketches
August 2007
94 pages
ISBN:9781450347266
DOI:10.1145/1278780
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

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Published: 05 August 2007

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  • (2011)Illumination decomposition for material recoloring with consistent interreflectionsACM SIGGRAPH 2011 papers10.1145/1964921.1964938(1-10)Online publication date: 7-Aug-2011

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