To access the full text documents, please follow this link: http://hdl.handle.net/10256/7138

Fast Inverse Reflector Design (FIRD)
Mas Baixeras, Albert; Martín Campos, Ignacio; Patow, Gustavo
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
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
Llums -- Disseny assistit per ordinador
Lamps -- Computer-aided design
Optimització matemàtica
Mathematical optimization
Tots els drets reservats
Article
info:eu-repo/semantics/acceptedVersion
Wiley
         

Show full item record

Related documents

Other documents of the same author

Mas Baixeras, Albert; Martín Campos, Ignacio; Patow, Gustavo
Szirmay-Kalos, László; Umenhoffer, Tamás; Patow, Gustavo; Szécsi, László; Sbert, Mateu
Creus López, Carles; Patow, Gustavo
Patow, Gustavo; Pueyo, Xavier; Vinacua Pla, Álvaro
 

Coordination

 

Supporters