TY - JOUR
T1 - Printing anisotropic appearance with magnetic flakes
AU - Pereira, Thiago
AU - Leme, Carolina L.A.Paes
AU - Marschner, Steve
AU - Rusinkiewicz, Szymon
N1 - Funding Information:
Thanks to Todd Zickler, Wojciech Matusik, and the members of the Princeton Graphics Lab for their helpful ideas and suggestions. This work was partially supported by NSF grants IIS-1011919 and IIS-1012147.
Publisher Copyright:
© 2017 Copyright held by the owner/author(s).
PY - 2017
Y1 - 2017
N2 - The ability to fabricate surfaces with fine control over bidirectional reflectance (BRDF) is a long-standing goal in appearance research, with applications in product design and manufacturing. We propose a technique that embeds magnetic flakes in a photo-cured resin, allowing the orientation distribution of those flakes to be controlled at printing time using a magnetic field. We show that time-varying magnetic fields allow us to control off-specular lobe direction, anisotropy, and lobe width, while using multiple spatial masks displayed by a UV projector allows for spatial variation. We demonstrate optical effects including bump maps: flat surfaces with spatially-varying specular lobe direction.
AB - The ability to fabricate surfaces with fine control over bidirectional reflectance (BRDF) is a long-standing goal in appearance research, with applications in product design and manufacturing. We propose a technique that embeds magnetic flakes in a photo-cured resin, allowing the orientation distribution of those flakes to be controlled at printing time using a magnetic field. We show that time-varying magnetic fields allow us to control off-specular lobe direction, anisotropy, and lobe width, while using multiple spatial masks displayed by a UV projector allows for spatial variation. We demonstrate optical effects including bump maps: flat surfaces with spatially-varying specular lobe direction.
KW - Fabrication
KW - Spatially-Varying BRDF
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U2 - 10.1145/3072959.3073701
DO - 10.1145/3072959.3073701
M3 - Conference article
AN - SCOPUS:85030763825
SN - 0730-0301
VL - 36
JO - ACM Transactions on Computer Systems
JF - ACM Transactions on Computer Systems
IS - 4
M1 - 123
T2 - ACM SIGGRAPH 2017
Y2 - 30 July 2017 through 3 August 2017
ER -