-
A vertex-centric representation for adaptive diamond-kite meshes
Computers & Graphics 119 (2024) 103910
[slides
·
code
·
grsi
·
doi]
-
Region reconstruction with the sphere-of-influence diagram
Computers & Graphics 107 (2022) 252–263
(with Afonso Paiva)
[slides
·
blog
·
doi]
-
An integer representation for periodic tilings of the plane by regular polygons
Computers & Graphics 95 (2021) 69–80
(with José Ezequiel Soto Sánchez, Tim Weyrich, and Asla Medeiros e Sá)
[project page
·
doi]
-
Interval methods for fixed and periodic points: development and visualization
Journal of Universal Computer Science 26 #10 (2020) 1312–1330
(with José Eduardo de Almeida Ayres)
[poster
·
doi]
-
Simple and reliable boundary detection for meshfree particle methods using interval analysis
Journal of Computational Physics 420 (2020) 109702
(with Marcos Sandim and Afonso Paiva)
[blog
·
doi]
-
Acquiring periodic tilings of regular polygons from images
The Visual Computer 35 #6-8 (2019) 899–907
(with José Ezequiel Soto Sánchez and Asla Medeiros e Sá)
[slides
·
demo
·
doi]
-
A look at the design of Lua
Communications of the ACM 61 #11 (2018) 114–123
(with
Roberto Ierusalimschy and
Waldemar Celes)
[doi
·
video]
-
Rigorous bounds for polynomial Julia sets
Journal of Computational Dynamics
3 #2 (2016) 113–137
(with Diego Nehab, Jorge Stolfi, and João Batista Oliveira)
[doi
·
MR3634901]
-
Sketch-based modeling and adaptive meshes
Computers & Graphics
52 (2015) 116–128
(with Emilio Vital Brazil, Ronan Amorim, Mario Costa Sousa, and Luiz Velho)
[doi]
-
Massively-parallel vector graphics
ACM Transactions on Graphics
33 #6 (2014) 229:1–229:14
(SIGGRAPH Asia 2014)
(with Francisco Ganacim, Rodolfo Lima, and Diego Nehab)
[doi]
-
Approximating implicit curves on plane and surface triangulations with affine arithmetic
Computers & Graphics
40 (2014) 36–48
(with Filipe Nascimento, Afonso Paiva, and Jorge Stolfi)
[slides
·
doi]
-
Point-based rendering of implicit surfaces in R4
Computers & Graphics
37 #7 (2013) 873–884
(with Alex Laier Bordignon, Luana Sá, Hélio Lopes, and Sinésio Pesco)
[doi]
-
Passing a language through the eye of a needle
Communications of the ACM 54 #7 (2011) 38–43
(with
Roberto Ierusalimschy and
Waldemar Celes)
[doi]
-
A fast hybrid method for apparent ridges
The Visual Computer
27 #10 (2011) 929–937
(with Eric Jardim)
[doi]
-
Sketch-based warping of RGBN images
Graphical Models
73 #4 (2011) 97–110
(with Thiago Pereira, Emilio Vital Brazil, Ives Macêdo, Mario Costa Sousa, and Luiz Velho)
[doi]
-
Shape and tone depiction for implicit surfaces
Computers & Graphics
35 #1 (2011) 43–53
(with Emilio Vital Brazil, Ives Macêdo, Mario Costa Sousa, and Luiz Velho)
[doi]
-
On the limit of families of algebraic subvarieties with unbounded volume
Astérisque
323 (2009) 41–59
(with César Camacho)
[numdam
·
MR2647964]
-
A heuristic method for region reconstruction from noisy samples
International Journal of Shape Modeling 15 #1-2 (2009) 1–17
(with Emilio Ashton Vital Brazil)
[doi
·
MR2804500]
-
Scalable GPU rendering of CSG models
Computers & Graphics 32 #5 (2008) 526–539
(with Fabiano Segadaes Romeiro and Luiz Velho)
[doi]
-
Robust visualization of strange attractors using affine arithmetic
Computers & Graphics 30 #6 (2006) 1020–1026
(with Afonso Paiva and Jorge Stolfi)
[doi]
-
The implementation of Lua 5.0
Journal of Universal Computer Science 11 #7 (2005) 1159–1176
(with Roberto Ierusalimschy and Waldemar Celes)
[slides
·
doi]
-
Smooth surface reconstruction from noisy clouds
Journal of the Brazilian Computer Society 9 #3 (2004) 52–66
(with Boris Mederos and Luiz Velho)
[doi]
-
Affine arithmetic: concepts and applications
Numerical Algorithms 37 #1-4 (2004) 147–158
(with Jorge Stolfi)
[slides
of invited plenary talk at SCAN 2002
·
doi]
-
Approximating parametric curves with strip trees using affine arithmetic
Computer Graphics Forum 22 #2 (2003) 171–179
(with Jorge Stolfi and Luiz Velho)
[slides
·
doi]
-
Robust approximation of offsets, bisectors, and medial axes of plane curves
Reliable Computing 9 #2 (2003) 161–175
(with João Batista Oliveira)
[slides
·
doi]
-
Robust adaptive polygonal approximation of implicit curves
Computers & Graphics 26 #6 (2002) 841–852
(with Hélio Lopes and João Batista Oliveira)
[slides
·
doi]
-
Interval computation of Viswanath's constant
Reliable Computing 8 #2 (2002) 131–138
(with João Batista Oliveira)
[doi]
-
The dynamics of the Jouanolou foliation on the complex projective 2-space
Ergodic Theory and Dynamical Systems 21 #3 (2001) 757–766
(with César Camacho)
[slides
·
doi
·
MR1836429]
-
Intersecting and trimming parametric meshes on finite-element shells
International Journal for Numerical Methods in Engineering
47 #4 (2000) 777–800
(with Luiz Cristovão Gomes Coelho and Marcelo Gattass)
[doi]
-
A unified approach for hierarchical adaptive tesselation of surfaces
ACM Transactions on Graphics 18 #4 (1999) 329–360
(with Luiz Velho and Jonas Gomes)
[doi]
-
Hierarchical generalized triangle strips
The Visual Computer 15 #1 (1999) 21–35
(with Luiz Velho and Jonas Gomes)
[doi]
-
A methodology for piecewise linear approximation of surfaces
Journal of the Brazilian Computer Society 3 #3 (1997) 30–42
(with Luiz Velho and Jonas Gomes)
[doi]
-
Adaptive enumeration of implicit surfaces with affine arithmetic
Computer Graphics Forum 15 #5 (1996) 287–296
(with Jorge Stolfi)
[doi]
-
IUP/LED: a portable user interface development tool
Software: Practice & Experience 26 #7 (1996) 737–762
(with Carlos Henrique Levy, Marcelo Gattass, Carlos Lucena, and Don Cowan)
[doi]
-
Lua: an extensible extension language
Software: Practice & Experience 26 #6 (1996) 635–652
(with Roberto Ierusalimschy and Waldemar Celes)
[doi]
First prize (technological category)
in the
II Compaq Award for Research and Development in Computer Science.
This award is a joint venture of
Compaq Computer in Brazil
the
Brazilian Ministry of Science and Technology
and the
Brazilian Academy of Sciences.
-
Sampling implicit objects with physically-based particle systems
Computers & Graphics 20 #3 (1996) 365–375
(with Jonas Gomes)
[doi]
-
Computational morphology of curves
The Visual Computer 11 #2 (1994) 105–112
(with Jonas Gomes)
[doi]
-
A database management system for efficient storage of structural loadings
Computers & Structures 32 #5 (1989) 1025–1034
(with Marcelo Gattass)
[doi]
-
A texture-driven model for male baldness
Proceedings of SIBGRAPI 2022, 162–167
(with Dennis Balreira, Márcio Volkweis, and Marcelo Walter)
[doi]
-
Towards a legion of virtual humans: steering behaviors and organic visualization
Proceedings of SIBGRAPI 2020, 31–38
(with André da Silva Antonitsch and Soraia Raupp Musse)
[doi
·
video]
-
Synthesizing periodic tilings of regular polygons
Proceedings of SIBGRAPI 2018, 17–24
(with Asla Medeiros e Sá and José Ezequiel Soto Sánchez)
[slides
·
demo
·
doi]
-
Accurate volume rendering based on adaptive numerical integration
Proceedings of SIBGRAPI 2015, 17–24
(with Leonardo Quatrin Campagnolo and Waldemar Celes)
[doi]
-
A sketch-based modeling framework based on adaptive meshes
Proceedings of SIBGRAPI 2014, 17–24
(with Emilio Vital Brazil, Ronan Amorim, Mario Costa Sousa, and Luiz Velho)
[doi]
-
Approximating implicit curves on triangulations with affine arithmetic
Proceedings of SIBGRAPI 2012, 94–101
(with Afonso Paiva, Filipe Nascimento, and Jorge Stolfi)
[slides
·
doi]
-
Sombras realistas em realidade aumentada móvel
Proceedings of SVR 2012
(with Tássio Knop and Luiz Velho)
[doi]
-
Beam casting implicit surfaces on the GPU with interval arithmetic
Proceedings of SIBGRAPI 2011, 72–77
(with Francisco Ganacim and Diego Nehab)
[slides
·
doi]
-
A hybrid method for computing apparent ridges
Proceedings of SIBGRAPI 2010, 118–125
(with Eric Jardim)
[slides
·
doi]
-
Sketching variational Hermite-RBF implicits
Proceedings of SBIM 2010, 1–8
(with Emilio Vital Brazil, Ives Macêdo, Mario Costa Sousa, and Luiz Velho)
[doi]
-
A few good samples: shape & tone depiction for Hermite RBF implicits
Proceedings of NPAR 2010, 7–15
(with Emilio Vital Brazil, Ives Macêdo, Mario Costa Sousa, and Luiz Velho)
[doi]
-
Oversegmentation control for inexact graph matching: first results
Mathematical Morphology and its Applications to Signal and Image Processing
(Proceedings of ISMM 2007), 375–386
(with Luís Augusto Consularo, Roberto M. Cesar Jr, and Isabelle Bloch)
[slides]
-
The evolution of Lua
Proceedings of ACM HOPL III, (2007) 2-1–2-26
(with Roberto Ierusalimschy and Waldemar Celes)
[slides
·
doi]
-
Robust adaptive meshes for implicit surfaces
Proceedings of SIBGRAPI 2006, 205–212
(with Afonso Paiva, Hélio Lopes, and Thomas Lewiner)
[slides
·
doi]
-
Hardware-assisted rendering of CSG models
Proceedings of SIBGRAPI 2006, 139–146
(with Fabiano Segadaes Romeiro and Luiz Velho)
[doi]
-
Simple adaptive mosaic effects
Proceedings of SIBGRAPI 2005, 315–322
(with Geisa Martins Faustino)
[slides
·
demo
·
doi]
-
Surface reconstruction for noisy point clouds
Proceedings of SGP 2005, 53–62
(with Nina Amenta, Boris Mederos and Luiz Velho)
-
The implementation of Lua 5.0
Proceedings of SBLP 2005, 63–75
(with Roberto Ierusalimschy and Waldemar Celes)
[slides]
-
Robust smoothing of noisy point clouds
Geometric Design and Computing: Seattle 2003
Nashboro Press, 2004.
ISBN
0-0-9728482-3-1
(with Boris Mederos and Luiz Velho)
-
Moving least squares multiresolution surface approximation
Proceedings of SIBGRAPI 2003, 19–26
(with Boris Mederos and Luiz Velho)
[doi]
-
Approximating parametric curves with strip trees using affine arithmetic
Proceedings of SIBGRAPI 2002, 163–170
(with Jorge Stolfi and Luiz Velho)
[slides
·
doi]
-
Interpolação de curvas de nível por difusão de calor
Proceedings of Geoinfo 2001, 57–62
(with Roberto de Beauclair Seixas and Claudio Antonio da Silva)
-
Robust adaptive approximation of implicit curves
Proceedings of SIBGRAPI 2001, 10–17
(with Hélio Lopes and João Batista Oliveira)
[slides
·
doi]
-
Good approximations for the relative neighbourhood graph
Proceedings of 13th Canadian Conference on Computational Geometry
(2001) 25–28
(with Diogo Vieira Andrade)
[slides]
-
The evolution of an extension language: a history of Lua
invited paper in
Proceedings of SBLP 2001, B-14–B-28
(with Roberto Ierusalimschy and Waldemar Celes)
-
Uma metodologia para geração de modelos de elevação a partir de curvas de nível
Proceedings of Geoinfo 2000, 82–87
(with Roberto de Beauclair Seixas, Claudio Antonio da Silva, and Paulo Cezar Pinto Carvalho)
-
Robust approximation of offsets and bisectors of plane curves
Proceedings of SIBGRAPI 2000, 139–145
(with João Batista Oliveira)
[slides
·
doi]
-
Interval methods for ray casting implicit surfaces with affine arithmetic
Proceedings of SIBGRAPI'99, 65–71
(with Affonso de Cusatis Junior and Marcelo Gattass)
[doi]
-
An algorithm for intersecting and trimming parametric meshes
Proceedings of SIBGRAPI'98, 86–93
(with Luiz Cristovão Gomes Coelho and Marcelo Gattass)
[doi]
-
Texturing composite deformable implicit objects
Proceedings of SIBGRAPI'98, 346–353
(with
Ruben Zonenschein,
Jonas Gomes,
Luiz Velho,
Mark Tigges, and
Brian Wyvill)
[project page
·
doi]
-
Controlling texture mapping onto implicit surfaces with particle systems
Proceedings of Implicit Surfaces'98, 131–138
(with
Ruben Zonenschein,
Jonas Gomes, and
Luiz Velho)
[IS'98]
-
Optimal adaptive polygonal approximation of parametric surfaces
Proceedings of SIBGRAPI'96, 127–133
(with
Luiz Velho)
[SIBGRAPI'96]
-
Surface intersection using affine arithmetic
Proceedings of Graphics Interface'96, 168–175
[doi]
-
EDG: Uma ferramenta para criação de interfaces gráficas interativas
Proceedings of SIBGRAPI'95, 241–248
(with Waldemar Celes and Marcelo Gattass)
-
Visualização volumétrica com otimizações de ray casting e detecção de bordas
Proceedings of SIBGRAPI'95, 281–286
(with Roberto de Beauclair Seixas, Marcelo Gattass, and Luiz Fernando Martha)
-
Adaptive enumeration of implicit surfaces with affine arithmetic
Proceedings of Implicit Surfaces'95, 161–170
(with Jorge Stolfi)
[IS'95]
-
Especificação de layout abstrato por manipulação direta
Proceedings of SIBGRAPI'94, 165–172
(with Raquel Oliveira Prates and Marcelo Gattass)
-
The design and implementation of a language for extending applications
Proceedings of XXI Brazilian Seminar on Software and Hardware (1994) 273–283
(with Roberto Ierusalimschy and Waldemar Celes)
-
Uma estratégia de portabilidade para aplicações gráficas interativas
Proceedings of SIBGRAPI'93, 203–211
(with Marcelo Gattass and Carlos Henrique Levy)
-
Physically-based sampling of implicit objects
Proceedings of SIBGRAPI'92, 81–87
(with Jonas Gomes)
-
Geração de interfaces para captura de dados sobre desenhos
Proceedings of SIBGRAPI'92, 169–175
(with
Clarisse Sieckenius de Souza,
Marcelo Gattass,
and
Luiz Cristovão Gomes Coelho)
-
Physically-based methods for polygonization of implicit surfaces
Proceedings of Graphics Interface'92, 250–257
(with Jonas Gomes, Demetri Terzopoulos, and Luiz Velho)
[doi]
-
Lua Programming Gems
Lua.org, December 2008.
ISBN 978-85-903798-4-3
(organized and edited with Waldemar Celes and Roberto Ierusalimschy)
-
Mathematical Optimization in Computer Graphics and Vision
The Morgan Kaufmann Series in Computer Graphics,
Elsevier, April 2008.
ISBN 0-12-715951-7
(with Luiz Velho, Paulo Cezar Carvalho, and Jonas Gomes)
-
Implicit Objects in Computer Graphics
Springer-Verlag, July 2002.
ISBN 0-387-98424-0
(with Luiz Velho and Jonas Gomes)
-
Métodos de Otimização em Computação Gráfica
book for course in the
22nd Brazilian Mathematics Colloquium
IMPA, 1999
(with Luiz Velho, Paulo Cezar Carvalho, and Jonas Gomes)
-
Self-Validated Numerical Methods and Applications
book for course in the
21st Brazilian Mathematics Colloquium
IMPA, 1997
(with
Jorge Stolfi)
[iv+116 pages,
preface]
-
Introdução à Geometria Computational
book for course in the
18th Brazilian Mathematics Colloquium
IMPA, 1991
(with Paulo Cezar Carvalho)
-
Interview about
Lua
in
Masterminds of Programming: Conversations with the Creators of Major Programming Languages
edited by Federico Biancuzzi and Shane Warden,
O'Reilly, 2009, pp. 161–176.
ISBN 0-596-51517-0
(with Roberto Ierusalimschy)
-
Binding C/C++ objects to Lua,
in M. Dickheiser (ed.),
Game Programming Gems 6
Charles River Media, 2006, pp. 341–355.
ISBN 1-58450-450-1
(with Waldemar Celes and Roberto Ierusalimschy)
-
Programming advanced control mechanisms with Lua coroutines,
in M. Dickheiser (ed.),
Game Programming Gems 6
Charles River Media, 2006, pp. 357–369.
ISBN 1-58450-450-1
(with Waldemar Celes and Roberto Ierusalimschy)
-
Adaptive sampling of parametric curves
in A. Paeth (ed.),
Graphics Gems V
Academic Press, 1995, pp. 173–178.
ISBN 0125434553
[doi]
-
On periodic tilings with regular polygons
Best PhD thesis
in SIBGRAPI 2021
(with José Ezequiel Soto Sánchez and Asla Medeiros e Sá)
[doi
·
video]
-
A matemática da animação por computador
Ciência Hoje 305 (July 2013) 18–23
(with Diego Nehab and
Luiz Velho)
[pdf
·
resumo
·
podcast]
-
Exemplar-based terrain synthesis
poster
in SIBGRAPI 2013
(with Leandro Cruz, Francisco Ganacim, Djalma Lúcio, and Luiz Velho)
-
Passing a language through the eye of a needle
ACM Queue 9 #5 (May 2011) 20–29
(with
Roberto Ierusalimschy and
Waldemar Celes)
[doi]
-
A hybrid method for computing apparent ridges
poster
in SIBGRAPI 2009
(with Eric Jardim)
-
Fracture patterns for non-photorealistic image rendering
poster
in SIBGRAPI 2008
(with Anna Regina Corbo Costa)
-
Region reconstruction from noisy samples
poster
in SIBGRAPI 2007
(with Emilio Ashton Vital Brazil)
-
Curve reconstruction from noisy data
poster
in SIBGRAPI 2006
(with Emilio Ashton Vital Brazil and Ives Macêdo)
-
Hardware-assisted CSG rendering
poster in SIGGRAPH 2006
(with Fabiano Segadaes Romeiro and Luiz Velho)
-
An introduction to affine arithmetic
TEMA 4 #3 (2003) 297–312
(with Jorge Stolfi)
-
Revisiting adaptively sampled distance fields
poster
in
Proceedings of SIBGRAPI 2001, 377
(with Luiz Velho and João Batista Oliveira)
[doi]
-
Um estudo sobre arquivos vetoriais para a visualização de mapas na Web
Proceedings of GISBRASIL 99
(with Carla Cristina Fonseca Ferreira and Marcelo Gattass)
-
Computing arrangements of implicit curves
Proceedings of V ERMAC 1998
(with Paulo Cezar Pinto Carvalho and Paulo Roma Cavalcanti)
-
Texturing implicit surfaces with particle systems
SIGGRAPH'97 Visual Proceedings 172
(with
Ruben Zonenschein,
Jonas Gomes, and
Luiz Velho)
[project page
·
doi
·
video]
-
Fast interval branch-and-bound methods for unconstrained global optimization
with affine arithmetic
Technical Report
97-08
Institute of Computing, UNICAMP
(with Ronald Van Iwaarden and Jorge Stolfi)
-
Lua: an extensible embedded language
Dr. Dobb's Journal 21 #12 (Dec 1996) 26–33
(with
Roberto Ierusalimschy and
Waldemar Celes)
[DDJ]
-
Geração auto-adaptativa de malhas com sistemas de partículas
Proceedings of SIBGRAPI'96, 335–336
(with
Marcelo Tilio Monteiro de Carvalho)
[SIBGRAPI'96]
-
Textura de superfícies implícitas com sistemas de partículas
Proceedings of SIBGRAPI'95, 305–306
(with
Ruben Zonenschein,
Jonas Gomes,
Luiz Velho)
-
IG: um sistema de construções geométricas com vínculos
Proceedings of SIBGRAPI'95, 311–312
(with
Siome Klein Goldenstein, Paulo Cezar Pinto Carvalho)
-
Reconstrução de terrenos com triangulações dependentes dos dados
Proceedings of SIBGRAPI'95, 313–314
(with
André Machado de Matos and
Marcelo Gattass)
-
The making of bs, a programmable button shell for X
The X Advisor
1 #3 (1995);
revised for
The Motif Developer
[original version]
-
A topological data structure for hierarchical planar subdivisions
Technical Report
CS-95-53
University of Waterloo
(with
Waldemar Celes,
Marcelo Gattass, and
Paulo Cezar Carvalho)
-
Otimização do algoritmo de ray casting para visualização de tomografias
Proceedings of SIBGRAPI'94, 5–8
(with
Roberto de Beauclair Seixas,
Marcelo Gattass, and
Luiz Fernando Martha)
-
Computational morphology of implicit curves
doctoral dissertation,
IMPA,
April 1992
(supervised by Jonas Gomes)
[abstract]
-
Many
reviews
for
Mathematical Reviews
-
Many
reviews
for
MathDL
-
Many
contributions
to
Wikipedia
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