\begin{thebibliography}{10}

\bibitem{Andersen98}
{\sc Andersen, R.~A., and Bradley, D.~C.}
\newblock Perception of three-dimensional structure from motion.
\newblock {\em Trends in Cognitive Science 2}, 6 (June 1998), 222--228.

\bibitem{Cabral93}
{\sc Cabral, B., and Leedom, L.}
\newblock Imaging vector fields using line integral convolution.
\newblock In {\em SIGGRAPH '93 Conference Proceedings\/} (August 1993),
  pp.~263--270.

\bibitem{Cook84}
{\sc Cook, R.~L., Porter, T., and Carpenter, L.}
\newblock Distributed ray tracing.
\newblock In {\em SIGGRAPH '84 Conference Proceedings\/} (July 1984),
  pp.~137--145.

\bibitem{Foley96}
{\sc Foley, D.~J., {van Dam}, A., Feiner, S.~K., and Hughes, J.~F.}
\newblock {\em Computer Graphics: Principles and Practice}.
\newblock Addison Wesley, 1996.

\bibitem{Freeman91}
{\sc Freeman, W.~T., Adelson, E.~H., and Heeger, D.~J.}
\newblock Motion without movement.
\newblock In {\em SIGGRAPH '91 Conference Proceedings\/} (July 1991),
  pp.~27--30.

\bibitem{Gooch98}
{\sc Gooch, A., Gooch, B., Shirley, P., and Cohen, E.}
\newblock A non-photorealistic lighting model for automatic technical
  illustration.
\newblock In {\em SIGGRAPH '98 Conference Proceedings\/} (July 1998),
  pp.~447--452.

\bibitem{Interrante97}
{\sc Interrante, V.}
\newblock Illustrating surface shape in volume data via principal
  direction-driven 3d line integral convolution.
\newblock In {\em SIGGRAPH '97 Conference Proceedings\/} (August 1997),
  pp.~109--116.

\bibitem{Interrante_tvcg97}
{\sc Interrante, V., Fuchs, H., and Pizer, S.}
\newblock Conveying the 3d shape of smoothly curving transparent surfaces via
  texture.
\newblock {\em IEEE Transactions on Visualization and Computer Graphics 3}, 2
  (April-June 1997), 98--117.

\bibitem{Potmesil83}
{\sc Potmesil, M., and Chakravarty, I.}
\newblock Modeling motion blur in computer-generated images.
\newblock In {\em SIGGRAPH '83 Conference Proceedings\/} (July 1983),
  pp.~389--399.

\bibitem{Reeves83}
{\sc Reeves, W.~T.}
\newblock Particle systems-a technique for modeling a class of fuzzy objects.
\newblock In {\em SIGGRAPH '83 Conference Proceedings\/} (July 1983),
  pp.~359--376.

\bibitem{Reynolds87}
{\sc Reynolds, C.~W.}
\newblock Flocks, herds, and schools: A distributed behavioral model.
\newblock In {\em SIGGRAPH '87 Conference Proceedings\/} (July 1987),
  pp.~25--34.

\bibitem{Schussman00}
{\sc Schussman, G., Ma, K.-L., Schissel, D., and Evans, T.}
\newblock Visualizing diii-d tokamak magnetic field lines,.
\newblock In {\em Proceedings of IEEE Visualization 2000 Conference\/} (October
  2000), pp.~501--504.

\bibitem{Treue91}
{\sc Treue, S., Husain, M., and Andersen, R.~A.}
\newblock Human perception of structure from motion.
\newblock {\em Vision Research 31\/} (1991), 59--75.

\bibitem{Wallach53}
{\sc Wallach, H., and O'Connell, D.~N.}
\newblock The kinetic depth effect.
\newblock {\em Journal of Experimental Psychology 45\/} (1953), 205--217.

\bibitem{Wanger92}
{\sc Wanger, L.~R., Ferwerda, J.~A., and Greenberg, D.~P.}
\newblock Perceiving spatial relationships in computer-generated images.
\newblock {\em IEEE Computer Graphics and Applications 20}, 3 (May 1992),
  44--58.

\bibitem{Westover89}
{\sc Westover, L.}
\newblock Interactive volume rendering.
\newblock In {\em Chapel Hill Workshop on Volume Visualization\/} (1989),
  pp.~9--16.

\bibitem{Zeki99}
{\sc Zeki, S.}
\newblock {\em Inner Vision}.
\newblock Oxford University Press, 1999.

\bibitem{Zwicker01}
{\sc Zwicker, M., Pfister, H., {van Baar}, J., and Gross, M.}
\newblock Surface splatting.
\newblock In {\em SIGGRAPH 2001 Conference Proceedings\/} (August 2001),
  pp.~371--378.

\end{thebibliography}
