Publication detail

Ink-and-Ray: Bas-Relief Meshes for Adding Global Illumination Effects to Hand-Drawn Characters

SÝKORA, D. KAVAN, L. ČADÍK, M. JAMRIŠKA, O. JACOBSON, A. WHITED, B. SIMMONS, M. SORKINE-HORNUNG, O.

Original Title

Ink-and-Ray: Bas-Relief Meshes for Adding Global Illumination Effects to Hand-Drawn Characters

Type

journal article in Web of Science

Language

English

Original Abstract

We present a new approach for generating global illumination renderings of hand-drawn characters using only a small set of simple annotations. Our system exploits the concept of bas-relief sculptures, making it possible to generate 3D proxies suitable for rendering without requiring side-views or extensive user input. We formulate an optimization process that automatically constructs approximate geometry sufficient to evoke the impression of a consistent 3D shape. The resulting renders provide the richer stylization capabilities of 3D global illumination while still retaining the 2D hand-drawn look-and-feel. We demonstrate 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 illumination effects, including self-shadowing, glossy reflections, and diffuse color bleeding.

Keywords

cartoons, global illumination, non-photorelasitic rendering, 2D-to-3D conversion, bas-relief

Authors

SÝKORA, D.; KAVAN, L.; ČADÍK, M.; JAMRIŠKA, O.; JACOBSON, A.; WHITED, B.; SIMMONS, M.; SORKINE-HORNUNG, O.

RIV year

2014

Released

20. 3. 2014

ISBN

0730-0301

Periodical

ACM TRANSACTIONS ON GRAPHICS

Year of study

2014

Number

2

State

United States of America

Pages from

1

Pages to

16

Pages count

16

URL

http://cadik.posvete.cz

BibTex

@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"
}