@inproceedings{Petrovic:2000:SCA,
author = {Lena Petrovic and Brian Fujito and Lance Williams and Adam
Finkelstein},
series = CGPACS,
editor = {Kurt Akeley},
localfile = {papers/Petrovic.2000.SCA.pdf },
address = {New York},
optkeywords = {Shadows, cel animation, inflation, sketching, NPR},
publisher = {ACM Press},
doi = {http://doi.acm.org/10.1145/344779.345073},
organization = {ACM SIGGRAPH},
citeseer = {http://citeseer.nj.nec.com/petrovic00shadows.html},
booktitle = SIGGRAPH2000,
optstatus = {OK},
abstract = {We present a semi-automatic method for creating shadow mattes in
cel animation. In conventional cel animation, shadows are drawn by
hand, in order to provide visual cues about the spatial
relationships and forms of characters in the scene. Our system
creates shadow mattes based on hand-drawn characters, given
high-level guidance from the user about depths of various objects.
The method employs a scheme for inflating a 3D figure based on
hand-drawn art. It provides simple tools for adjusting object
depths, coupled with an intuitive interface by which the user
specifies object shapes and relative positions in a scene. Our
system obviates the tedium of drawing shadow mattes by hand, and
provides control over complex shadows falling over interesting
shapes.},
title = {{S}hadows for {C}el {A}nimation},
year = {2000},
pages = {511--516},
}
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