Digital halftoning
Acquiring the reflectance field of a human face
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
An efficient representation for irradiance environment maps
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
A photometric approach to digitizing cultural artifacts
Proceedings of the 2001 conference on Virtual reality, archeology, and cultural heritage
ACM Transactions on Graphics (TOG)
Performance relighting and reflectance transformation with time-multiplexed illumination
ACM SIGGRAPH 2005 Papers
Digital bas-relief from 3D scenes
ACM SIGGRAPH 2007 papers
Post-production facial performance relighting using reflectance transfer
ACM SIGGRAPH 2007 papers
Towards passive 6D reflectance field displays
ACM SIGGRAPH 2008 papers
Fabricating microgeometry for custom surface reflectance
ACM SIGGRAPH 2009 papers
Printing spatially-varying reflectance
ACM SIGGRAPH Asia 2009 papers
ACM SIGGRAPH 2010 papers
Computational highlight holography
ACM SIGGRAPH Asia 2010 papers
New reflection transformation imaging methods for rock art and multiple-viewpoint display
VAST'06 Proceedings of the 7th International conference on Virtual Reality, Archaeology and Intelligent Cultural Heritage
Computational design of mechanical characters
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Computational design of actuated deformable characters
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Fabricating BRDFs at high spatial resolution using wave optics
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Bi-scale appearance fabrication
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Spec2Fab: a reducer-tuner model for translating specifications to 3D prints
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Inverse bi-scale material design
ACM Transactions on Graphics (TOG)
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The reflectance function of a scene point captures the appearance of that point as a function of lighting direction. We present an approach to printing the reflectance functions of an object or scene so that its appearance is modified correctly as a function of the lighting conditions when viewing the print. For example, such a “photograph” of a statue printed with our approach appears to cast shadows to the right when the “photograph” is illuminated from the left. Viewing the same print with lighting from the right will cause the statue's shadows to be cast to the left. Beyond shadows, all effects due to the lighting variation, such as Lambertian shading, specularity, and inter-reflection can be reproduced. We achieve this ability by geometrically and photometrically controlling specular highlights on the surface of the print. For a particular viewpoint, arbitrary reflectance functions can be built up at each pixel by controlling only the specular highlights and avoiding significant diffuse reflections. Our initial binary prototype uses halftoning to approximate continuous grayscale reflectance functions.