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Printing anisotropic appearance with magnetic flakes

Author(s): Pereira, Thiago; Leme, Carolina L A P; Marschner, Steve; Rusinkiewicz, Szymon

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Abstract: 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: fat surfaces with spatially-varying specular lobe direction.
Publication Date: Jul-2017
Citation: Pereira, Thiago, Carolina L. A. Paes Leme, Steve Marschner, and Szymon Rusinkiewicz. "Printing anisotropic appearance with magnetic flakes." ACM Transactions on Graphics (TOG) 36, no. 4 (2017): 123:1-123:10. doi:10.1145/3072959.3073701
DOI: 10.1145/3072959.3073701
ISSN: 0730-0301
EISSN: 1557-7368
Pages: 123:1 - 123:10
Type of Material: Journal Article
Journal/Proceeding Title: ACM Transactions on Graphics
Version: Author's manuscript
Notes: Supplementary Material:

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