Fast Inverse Reflector Design (FIRD)
dc.contributor.author
dc.date.accessioned
2012-10-15T10:10:02Z
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2012-10-15T10:10:02Z
dc.date.issued
2009
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dc.description.abstract
This paper presents a new inverse reflector design method using a GPU-based computation of outgoing light distribution from reflectors. We propose a fast method to obtain the outgoing light distribution of a parametrized reflector, and then compare it with the desired illumination. The new method works completely in the GPU. We trace millions of rays using a hierarchical height-field representation of the reflector. Multiple reflections are taken into account. The parameters that define the reflector shape are optimized in an iterative procedure in order for the resulting light distribution to be as close as possible to the desired, user-provided one. We show that our method can calculate reflector lighting at least one order of magnitude faster than previous methods, even with millions of rays, complex geometries and light sources
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This work was done under grant TIN2007-67120 from the Spanish Government, and under grant 7th Framework Programme-Capacities (grant No 222550, project EcoStreetLight) from the UE
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application/pdf
dc.language.iso
eng
dc.publisher
Wiley
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info:eu-repo/grantAgreement/MEC//TIN2007-67120/ES/CAD BASADO EN EL MODELADO Y LA SIMULACION DEL TRANSPORTE DE LUZ/
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Versió postprint del document publicat a: http://dx.doi.org/10.1111/j.1467-8659.2009.01430.x
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© Computer Graphics Forum, 2009, vol. 28, núm. 8, p.2046–2056
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Articles publicats (IIIA)
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Tots els drets reservats
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dc.title
Fast Inverse Reflector Design (FIRD)
dc.type
info:eu-repo/semantics/article
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info:eu-repo/semantics/openAccess
dc.relation.projectID
info:eu-repo/grantAgreement/EC/FP7/222550/EU/Development of 25% more energy efficient street lights with integrated reflector, elimination of protection glass, optimized arc tube and improved luminaire design./ECOSTREETLIGHT
dc.type.version
info:eu-repo/semantics/acceptedVersion
dc.identifier.doi
dc.identifier.idgrec
012127
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dc.relation.FundingProgramme
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dc.identifier.eissn
1467-8659