Publication Details
Ink-and-Ray: Bas-Relief Meshes for Adding Global Illumination Effects to Hand-Drawn Characters
Kavan Ladislav
Čadík Martin, doc. Ing., Ph.D. (DCGM)
Jamriška Ondřej
Jacobson Alec
Whited Brian
Simmons Maryann
Sorkine-Hornung Olga
cartoons, global illumination, non-photorelasitic rendering, 2D-to-3D conversion, bas-relief
We present a new approach for generating global illumination renderings ofhand-drawn characters using only a small set of simple annotations. Our systemexploits the concept of bas-relief sculptures, making it possible to generate3D proxies suitable for rendering without requiring side-views or extensiveuser input. We formulate an optimization process that automatically constructsapproximate geometry sufficient to evoke the impression of a consistent 3Dshape. The resulting renders provide the richer stylization capabilities of 3Dglobal illumination while still retaining the 2D hand-drawn look-and-feel. Wedemonstrate our approach on a varied set of hand-drawn images and animations,showing that even in comparison to ground-truth renderings of full 3D objects,our bas-relief approximation is able to produce convincing global illuminationeffects, including self-shadowing, glossy reflections, and diffuse colorbleeding.
@article{BUT111551,
author="Daniel {Sýkora} and Ladislav {Kavan} and Martin {Čadík} and Ondřej {Jamriška} and Alec {Jacobson} and Brian {Whited} and Maryann {Simmons} and Olga {Sorkine-Hornung}",
title="Ink-and-Ray: Bas-Relief Meshes for Adding Global Illumination Effects to Hand-Drawn Characters",
journal="ACM TRANSACTIONS ON GRAPHICS",
year="2014",
volume="2014",
number="2",
pages="1--16",
doi="10.1145/2591011",
issn="0730-0301",
url="http://cadik.posvete.cz"
}