{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T06:28:42Z","timestamp":1775284122958,"version":"3.50.1"},"publisher-location":"New York, New York, USA","reference-count":32,"publisher":"ACM Press","license":[{"start":{"date-parts":[[2010,1,1]],"date-time":"2010-01-01T00:00:00Z","timestamp":1262304000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2010]]},"DOI":"10.1145\/1809939.1809941","type":"proceedings-article","created":{"date-parts":[[2010,6,2]],"date-time":"2010-06-02T19:40:27Z","timestamp":1275507627000},"page":"7-15","source":"Crossref","is-referenced-by-count":3,"title":["A few good samples"],"prefix":"10.1145","author":[{"given":"Emilio Vital","family":"Brazil","sequence":"first","affiliation":[{"name":"IMPA - Instituto Nacional de Matem\u00e1tica Pura e Aplicada, Brazil and University of Calgary, Canada"}]},{"given":"Ives","family":"Mac\u00eado","sequence":"additional","affiliation":[{"name":"IMPA - Instituto Nacional de Matem\u00e1tica Pura e Aplicada, Brazil and University of Calgary, Canada"}]},{"given":"Mario Costa","family":"Sousa","sequence":"additional","affiliation":[{"name":"University of Calgary, Canada"}]},{"given":"Luiz","family":"Velho","sequence":"additional","affiliation":[{"name":"IMPA - Instituto Nacional de Matem\u00e1tica Pura e Aplicada, Brazil"}]},{"given":"Luiz Henrique","family":"de Figueiredo","sequence":"additional","affiliation":[{"name":"IMPA - Instituto Nacional de Matem\u00e1tica Pura e Aplicada, Brazil"}]}],"member":"320","reference":[{"key":"key-10.1145\/1809939.1809941-1","unstructured":"Akleman, E. 1998. Implicit painting of CSG solids. InProc. of CSG '98, Set-Theoretic Solid Modelling: Techniques and Applications, 99--113."},{"key":"key-10.1145\/1809939.1809941-2","doi-asserted-by":"crossref","unstructured":"Andrews, W. M. 2006. Introduction to perceptual principles in medical illustration: lines & illusions.Tutorial Notes, Illustrative Visualization for Medicine and Science (Eurographics '06).","DOI":"10.1145\/1185657.1185691"},{"key":"key-10.1145\/1809939.1809941-3","doi-asserted-by":"crossref","unstructured":"Barla, P., Thollot, J., and Markosian, L. 2006. X-toon: an extended toon shader. InProc. of 4th international symposium on Non-photorealistic animation and rendering (NPAR '06), 127--132.","DOI":"10.1145\/1124728.1124749"},{"key":"key-10.1145\/1809939.1809941-4","unstructured":"Bertsekas, D. P. 1999.Nonlinear Programming, 2nd ed. Athena Scientific."},{"key":"key-10.1145\/1809939.1809941-5","unstructured":"Bremer, D., and Hughes, J. F. 1998. Rapid approximate silhouette rendering of implicit surfaces. InProc. of Implicit Surfaces '98, 155--164."},{"key":"key-10.1145\/1809939.1809941-6","unstructured":"Burns, M., Klawe, J., Rusinkiewicz, S., Finkelstein, A., and DeCarlo, D. 2005. Line drawings from volume data.ACM Transactions on Graphics (SIGGRAPH '05) 24, 3, 512--518."},{"key":"key-10.1145\/1809939.1809941-7","unstructured":"Deussen, O. 2009. Aesthetic placement of points using generalized Lloyd relaxation. InProc. of 5th Intl. Symposium on Computational Aesthetics in Graphics, Visualization and Imaging (CAe'09), Eurographics Association, 123--128."},{"key":"key-10.1145\/1809939.1809941-8","doi-asserted-by":"crossref","unstructured":"Duchon, J. 1977.Splines minimizing rotation-invariant semi-norms in Sobolev spaces, vol. Constructive Theory of Functions of Several Variables, 571 ofLecture Notes in Mathematics. Springer Berlin Heidelberg, 85--100.","DOI":"10.1007\/BFb0086566"},{"key":"key-10.1145\/1809939.1809941-9","doi-asserted-by":"crossref","unstructured":"Elber, G. 1998. Line art illustrations of parametric and implicit forms.IEEE Transactions on Visualization and Computer Graphics 4, 1, 71--81.","DOI":"10.1109\/2945.675655"},{"key":"key-10.1145\/1809939.1809941-10","unstructured":"Foster, K., Jepp, P., Wyvill, B., Sousa, M. C., Galbraith, C., and Jorge, J. A. 2005. Pen-and-ink for blobtree implicit models.Computer Graphics Forum (Eurographics '05) 24, 3, 267--276."},{"key":"key-10.1145\/1809939.1809941-11","unstructured":"Goldstein, N. 1999.The Art of Responsive Drawing. Prentice-Hall."},{"key":"key-10.1145\/1809939.1809941-12","doi-asserted-by":"crossref","unstructured":"Hertzmann, A., and Zorin, D. 2000. Illustrating smooth surfaces. InProc. of SIGGRAPH '00, 517--526.","DOI":"10.1145\/344779.345074"},{"key":"key-10.1145\/1809939.1809941-13","unstructured":"Jepp, P., Wyvill, B., and Sousa, M. C. 2006. Smarticles for sampling and rendering implicit models. InProc. of 4th Theory and Practice of Computer Graphics (TPCG'06), 39--46."},{"key":"key-10.1145\/1809939.1809941-14","doi-asserted-by":"crossref","unstructured":"Jepp, P., Denzinger, J., Wyvill, B., and Sousa, M. C. 2008. Using multi-agent systems for sampling and rendering implicit surfaces. InProc. of XXI Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI '08), 255--262.","DOI":"10.1109\/SIBGRAPI.2008.18"},{"key":"key-10.1145\/1809939.1809941-15","unstructured":"Jepp, P., Araujo, B. D., Jorge, J., Wyvill, B., and Sousa, M. C. 2009. Style nodes for hierarchical tree-based implicit surface modelling. InProc. of 5th Intl. Symposium on Computational Aesthetics in Graphics, Visualization and Imaging (CA'09), 41--48."},{"key":"key-10.1145\/1809939.1809941-16","doi-asserted-by":"crossref","unstructured":"Kim, S. Y., Maciejewski, R., Isenberg, T., Andrews, W. M., Chen, W., Sousa, M. C., and Ebert, D. S. 2009. Stippling by example. InProc. of 7th Intl. Symposium on Non-Photorealistic Animation and Rendering (NPAR '09), 41--50.","DOI":"10.1145\/1572614.1572622"},{"key":"key-10.1145\/1809939.1809941-17","doi-asserted-by":"crossref","unstructured":"Kindlmann, G., Whitaker, R., Tasdizen, T., and Moller, T. 2003. Curvature-based transfer functions for direct volume rendering: Methods and applications. InProc. of 14th IEEE Visualization (VIS '03), 513--520.","DOI":"10.1109\/VISUAL.2003.1250414"},{"key":"key-10.1145\/1809939.1809941-18","unstructured":"Lohan, F. J. 1978.Pen & Ink Techniques. Contemporary Books, Inc."},{"key":"key-10.1145\/1809939.1809941-19","doi-asserted-by":"crossref","unstructured":"Macêdo, I., Gois, J. P., and Velho, L. 2009. Hermite interpolation of implicit surfaces with radial basis functions. InProc. of XXII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI '09), 1--8.","DOI":"10.1109\/SIBGRAPI.2009.11"},{"key":"key-10.1145\/1809939.1809941-20","doi-asserted-by":"crossref","unstructured":"Plantinga, S., and Vegter, G. 2006. Computing contour generators of evolving implicit surfaces.ACM Transactions on Graphics 25, 4, 1243--1280.","DOI":"10.1145\/1183287.1183288"},{"key":"key-10.1145\/1809939.1809941-21","unstructured":"Proença, J., Jorge, J., and Sousa, M. 2007. Sampling pointset implicits. InProc. of 4th IEEE\/Eurographics Symposium on Point-Based Graphics (PBG '07), 11--8."},{"key":"key-10.1145\/1809939.1809941-22","unstructured":"Proença, J., Jorge, J., and Sousa, M. 2008. Suggestive contours over point-set implicits. InProc. of 3rd Intl. Conference on Computer Graphics Theory and Applications (GRAPP '08), 171--180."},{"key":"key-10.1145\/1809939.1809941-23","doi-asserted-by":"crossref","unstructured":"Rawson, P. 1987.Drawing. University of Pennsylvania Press.","DOI":"10.9783\/9781512805567"},{"key":"key-10.1145\/1809939.1809941-24","doi-asserted-by":"crossref","unstructured":"Ricci, A. 1973. A constructive geometry for computer graphics.The Computer Journal 16, 2, 157--160.","DOI":"10.1093\/comjnl\/16.2.157"},{"key":"key-10.1145\/1809939.1809941-25","unstructured":"Rosten, E., and Drummond, T. 2003. Rapid rendering of apparent contours of implicit surfaces for realtime tracking. InBritish Machine Vision Conference, 719--728."},{"key":"key-10.1145\/1809939.1809941-26","doi-asserted-by":"crossref","unstructured":"Schmidt, R., Isenberg, T., Jepp, P., Singh, K., and Wyvill, B. 2007. Sketching, scaffolding, and inking: a visual history for interactive 3D modeling. InProc. of the 5th Intl. Symposium on Non-Photorealistic Animation and Rendering (NPAR '07), 23--32.","DOI":"10.1145\/1274871.1274875"},{"key":"key-10.1145\/1809939.1809941-27","unstructured":"Smith, J. A. 1992.The Pen and Ink Book: Materials and Techniques for Today's Artist. Watson-Guptill Publications."},{"key":"key-10.1145\/1809939.1809941-28","doi-asserted-by":"crossref","unstructured":"Sousa, M., Samavati, F., and Brunn, M. 2004. Depicting shape features with directional strokes and spotlighting. InProc. of Computer Graphics International (CGI '04), 214--221.","DOI":"10.1109\/CGI.2004.1309213"},{"key":"key-10.1145\/1809939.1809941-29","doi-asserted-by":"crossref","unstructured":"Stark, M. M. 2009. Efficient construction of perpendicular vectors without branching.Journal of Graphics, GPU, & Game Tools 14, 55--62.","DOI":"10.1080\/2151237X.2009.10129274"},{"key":"key-10.1145\/1809939.1809941-30","doi-asserted-by":"crossref","unstructured":"Stroila, M., Eisemann, E., and Hart, J. 2008. Clip art rendering of smooth isosurfaces.IEEE Transactions on Visualization and Computer Graphics 14, 1, 135--145.","DOI":"10.1109\/TVCG.2007.1058"},{"key":"key-10.1145\/1809939.1809941-31","doi-asserted-by":"crossref","unstructured":"Wendland, H. 1995. Piecewise polynomial, positive definite and compactly supported radial functions of minimal degree.Advances in Computational Mathematics 4, 1, 389--396.","DOI":"10.1007\/BF02123482"},{"key":"key-10.1145\/1809939.1809941-32","doi-asserted-by":"crossref","unstructured":"Xu, H., and Chen, B. 2004. Stylized rendering of 3D scanned real world environments. InProc. of the 3rd Intl. Symposium on Non-Photorealistic Animation and Rendering (NPAR'04), 25--34.","DOI":"10.1145\/987657.987662"}],"event":{"name":"the 8th International Symposium","location":"Annecy, France","acronym":"NPAR '10","number":"8","sponsor":["Adobe","CNRS, Centre National De La Rechercue Scientifique","INRIA, Institut Natl de Recherche en Info et en Automatique","SIGGRAPH, ACM Special Interest Group on Computer Graphics and Interactive Techniques"],"start":{"date-parts":[[2010,6,7]]},"end":{"date-parts":[[2010,6,10]]}},"container-title":["Proceedings of the 8th International Symposium on Non-Photorealistic Animation and Rendering - NPAR 10"],"original-title":[],"link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/1809939.1809941","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/dl.acm.org\/ft_gateway.cfm?id=1809941&ftid=801765&dwn=1","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T11:39:26Z","timestamp":1750246766000},"score":1,"resource":{"primary":{"URL":"http:\/\/dl.acm.org\/citation.cfm?doid=1809939.1809941"}},"subtitle":["shape & tone depiction for Hermite RBF implicits"],"proceedings-subject":"Non-Photorealistic Animation and Rendering","short-title":[],"issued":{"date-parts":[[2010]]},"references-count":32,"URL":"https:\/\/doi.org\/10.1145\/1809939.1809941","relation":{},"subject":[],"published":{"date-parts":[[2010]]}}}