ShadowPix: Multiple Images from Self Shadowing

  • Authors:
  • Amit Bermano;Ilya Baran;Marc Alexa;Wojciech Matusk

  • Affiliations:
  • Disney Research Zürich and ETH Zürich;Disney Research Zürich;TU Berlin and Disney Research Boston;MIT CSAIL and Disney Research Boston

  • Venue:
  • Computer Graphics Forum
  • Year:
  • 2012

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Abstract

ShadowPixare white surfaces that display several prescribed images formed by the self-shadowing of the surface when lit from certain directions. The effect is surprising and not commonly seen in the real world. We present algorithms for constructing ShadowPixthat allow up to four images to be embedded in a single surface. ShadowPixcan produce a variety of unusual effects depending on the embedded images: moving the light can animate or relight the object in the image, or three colored lights may be used to produce a single colored image. ShadowPixare easy to manufacture using a 3D printer and we present photographs, videos, and renderings demonstrating these effects. © 2012 Wiley Periodicals, Inc.