@article{Greene:1985:DPV,
opteditor = {},
optpostscript = {},
number = {3},
month = jul,
optnote = {},
optorganization = {},
author = {Richard Greene},
optkey = {},
series = CGPACS,
optannote = {},
address = {New York},
localfile = {papers/Greene.1985.DPV.pdf},
optisbn = {},
publisher = {ACM Press},
optciteseer = {},
doi = {http://doi.acm.org/10.1145/325334.325202},
journal = SIGGRAPH85,
volume = {19},
opturl = {},
optcrossref = {},
optwww = {},
abstract = {Artists using conventional computer graphic input devices cannot
produce the same visual effects which they can with traditional
tools and media. The drawing prism is a new device which allows
people to draw or paint directly into a frame buffer, using
brushes, their hands, or a variety of other objects. These objects
can be manipulated to achieve continuously adjustable line
qualities and textures, in the same ways that artists have
traditionally used their hands and tools. The device uses one face
of a large transparent prism as a drawing surface. A video camera
views that surface from an angle such that it can only image the
points of optical contact between drawing tools and the surface.
These images are digitized and processed in real time so as to
build up a drawing as the tools are moved along the surface. A
layer of transparent liquid helps tools make optical contact with
the drawing surface. Any light colored object can thus be used as
a drawing tool. Details of the current implementation are provided
along with suggestions for improving its resolution. Combinations
of visual effects previously restricted to either traditional
media or computer graphics are described and illustrated.},
title = {{T}he {D}rawing {P}rism: {A} {V}ersatile {G}raphic {I}nput {D}evice},
year = {1985},
pages = {103--110},
}
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