Sketching Shadows and Highlights to Position
Lights
Pierre
Poulin, Karim
Ratib, and Marco Jacques
Proc. Computer Graphics International 97, June 1997
Abstract
In inverse shading, a user provides information about the
desired shading as he would like it to appear in the final image. The computer
then interprets this information to identify the best values for the various
shading parameters that would lead to the desired visual effect.
In this paper, we introduce an approach based on "sketching" in order
to position light sources. Point light sources are positioned by sketches
of shadows or highlights. Extended light sources are positioned by sketches
of umbra or penumbra. The resulting system allows to quickly position light
sources and to refine their positions interactively and more intuitively.
BibTeX entry
@InProceedings{Poulin:1997:SSH,
author = "Pierre Poulin and Karim Ratib and Marco Jacques ",
title = "Sketching Shadows and Highlights to Position Lights",
pages = "56--63",
booktitle = "Proceedings of Computer Graphics International 97",
month = jun,
year = "1997",
publisher = "IEEE Computer Society",
keywords = "",
annote = "",
}
Online Version
Postscript available here