Amir Vaxman

Amir Vaxman is a tenured faculty member in the Division Virtual Worlds at the Department of Information and Computing Sciences at Utrecht University, The Netherlands. Before his position in UU, he was a postdoctoral fellow in TU Wien (Vienna) at the Geometric Modeling and Industrial Geometry group, where he also received the Lise-Meitner fellowship. He earned his BSc in computer engineering, and his PhD in Computer science from the Technion-IIT. His research interests are geometry processing and discrete differential geometry, focusing on directional-field design, unconventional meshes, constrained shape spaces, architectural geometry, and medical applications.
Contact Information
Buys Ballot Laboratory, office 424
Princetonplein 5, De Uithof
3584 CC Utrecht, The Netherlands
E-mail: A DOT Vaxman AT uu DOT nl
Phone: +31 (30) 2539202


29/Apr/2018I have released version 1.0 of libdirectional, with tutorial included.
18/Apr/2018The Eurographics association nominated me to a Junior Fellow starting from 2018.
13/Oct/2017I will become a tenured member of the department starting 1/Nov/2017!
12/Sep/2017I will serve as program co-chair for SGP 2018.
17/Aug/2017The video of my SGP 2017 summer school about directional fields is on YouTube.
1/Aug/2017I have one paper conditionally accepted to SIGGRAPH Asia 2017!
21/June/2017I will be co-chairing the Short Papers Track at Eurographics 2018.


Ph.D. in Computer Science (Supervised by Gill Barequet), Technion-IIT, 2007–2011.
M.Sc. in Computer Science (Supervised by Gill Barequet), Technion-IIT, 2004–2006.
B.Sc. in Computer Engineering, Technion-IIT, 1998–2002.

Current Students

Alexander Lewis, Ph.D. candidate (cosupervised by Willem-Jan van de Berg).
Ioannis Nemparis, Ph.D. candidate (cosupervised by Frank van der Stappen).
Bram Custers, M.Sc. GMT.
Jack van der Drift, M.Sc. GMT.
Linus van Elswijk, M.Sc. GMT (as an internship in
Constantinos Kyprianou, M.Sc. GMT.
Sander Vanheste, M.Sc. GMT (as an internship at UMC).

Graduated Students

Robbin Marcus, M.Sc. GMT. (graduated 31/Mar/2017) [Project Page]
Thomas Breekveldt, M.Sc. GMT. (graduated 21/Apr/2017) [Project Page]
Tom Percheul, M.Sc. GMT (graduated 16/June/2017) as an internship in VSTEP.
Marco A. S. Sanson, M.Sc. GMT. (graduated 31/Oct/2017) [Project Page]


Symposium on Geometry Processing (SGP) 2018Program co-chair (with Tao Ju)
Eurographics 2018Short Papers Track co-chair (with Olga Diamanti)
The Visual ComputerAssociate editor
SIGGRAPH Asia 2016Workshops Committee member
Shape Modeling International (SMI) 2016, 2017Technical Papers Program Committee member
Eurographics 2015Full Papers International Program Committee member
Symposium on Geometry Processing (SGP) 2013, 2015–2017 International Programme Committee Member
Geometric Modeling and Processing (GMP) 2014–2018 Technical Program Committee member
Pacific Graphics (PG) 2017, 2018 International Program Committee member
Advances in Architectural Geometry (AAG) 2018 Papers Committee member
CAD/GRAPHICS 2017 International Program Committee member
Computer Graphics International (CGI) 2018 Program Committee member
International Symposium on Visual Computing (ISVC) 2018 Program Committee member

Currently Teaching:

Game Physics (INFOMGP): Period 3, 2017/18
3D Modelling (INFODDM): Period 4, 2017/18
Small GMT Project, and GMT master thesis: continuously. open positions for students!


Nico Pietroni, Marco Tarini, Amir Vaxman, Daniele Panozzo, and Paolo Cignoni
Position-Based Tensegrity Design
ACM Transactions on Graphics (Proc. SIGGRAPH Asia), 36(6), 2017
[Paper] [Video][Code]
Amir Vaxman, Christian Müller, and Ofir Weber
Regular Meshes from Polygonal Patterns
ACM Transactions on Graphics (Proc. SIGGRAPH), 36(4), 2017
[Paper] [Video][Code]
Justin Solomon, Amir Vaxman, and David Bommes
Boundary Element Octahedral Fields in Volumes
ACM Transactions on Graphics (presented at SIGGRAPH 2017), 36(3), 2017 .
Amir Vaxman, Marcel Campen, Olga Diamanti, Daniele Panozzo, David Bommes, Klaus Hildebrandt, and Mirela Ben-Chen
Directional Field Synthesis, Design, and Processing
SIGGRAPH 2017 courses
SIGGRAPH ASIA 2016 courses
State-of-the-art Report (STAR), Eurographics 2016
[STAR Version] [Webpage for course] [SGP 2017 Summer School version]
Caigui Jiang*, Chengcheng Tang*, Amir Vaxman, Peter Wonka, and Helmut Pottmann
Polyhedral Patterns
ACM Transactions on Graphics (Proc. SIGGRAPH ASIA), 34(6), 2015
[Paper] [Auxiliary material][Video]
* Joint first authors.
Joint last authors.
Amir Vaxman, Christian Müller, and Ofir Weber
Conformal Mesh Deformations with Möbius Transformations
ACM Transactions on Graphics (Proc. SIGGRAPH), 34(4), 2015
[Paper] [Video][Code]
Olga Diamanti, Amir Vaxman, Daniele Panozzo, and Olga Sorkine-Hornung
Integrable PolyVector Fields
ACM Transactions on Graphics (Proc. SIGGRAPH), 34(4), 2015
[Project Page]
Orestis Vardoulis, Pierre Monney, Davide Piccini, Amit Bermano, Amir Vaxman, Craig Gotsman, Janine Schwitter, Matthias Stuber, Nikolaos Stergiopulos, and Juerg Schwitter
Single breath-hold 3D measurement of left atrial volume using compressed sensing CMR and a non-model-based reconstruction approach
Journal of Cardiovascular Magnetic Resonance, 17(1), 2015
Helmut Pottmann, Michael Eigensatz, Amir Vaxman, and Johannes Wallner
Architectural Geometry
Computers and Graphics 47, 2015
Amir Vaxman and Mirela Ben-Chen
Dupin Meshing: A Parameterization Approach to Planar Hex-Dominant Meshing
Technical Report CS-2015-01
Olga Diamanti, Amir Vaxman, Daniele Panozzo, and Olga Sorkine-Hornung
Designing N-PolyVector Fields with Complex Polynomials
Computer Graphics Forum (Proc. SGP) 33(5), 2014
Best Paper award
[Project Page]
Amir Vaxman
A Projective Framework for Polyhedral Mesh Modelling
Computer Graphics Forum 33(8), 2014 (presented at SGP 2015).
Amir Vaxman
Modeling Polyhedral Meshes with Affine Maps
Computer Graphics Forum (Proc. SGP) 31(5), 2012
Best Paper award (2nd place)
[Paper][Note - Alternative Implementation] [Video] [Code in libhedra]
Amit Bermano, Amir Vaxman, and Craig Gotsman
Online Reconstruction of 3D Objects from Arbitrary Cross-Sections
ACM Transactions on Graphics 30(5), 2011 (presented at SIGGRAPH ASIA 2011).
[Paper] [Video]
Amir Vaxman, Mirela Ben-Chen and Craig Gotsman
A Multi-Resolution approach to Heat Kernels on Discrete Surfaces
ACM Transactions on Graphics (Proc. SIGGRAPH), 29(4), 2010
Gill Barequet and Amir Vaxman
Reconstruction of Multi-Label Domains from Partial Planar Cross-Sections
Computer Graphics Forum (Proc. SGP) 28(5), 2009
Gill Barequet, David Eppstein, Mike T. Goodrich and Amir Vaxman
Straight Skeletons of Three-Dimensional Polyhedra
Lecture Notes In Computer Science (Proc. ESA), Vol. 5193, 2008
Gill Barequet and Amir Vaxman
Nonlinear Interpolation Between Slices
International Journal of Shape Modeling (preliminary version appeared in Proceedings of SPM, Beijing, 2006), 14(1), 2008


libdirectional: directional Field Synthesis, Design, and Processing.
libhedra: processing and optimization of polygonal unconventional meshes.


A. Vaxman, General Techniques for Interpolation, Reconstruction and Morphing of Polyhedral Surfaces, PhD Thesis, Technion—IIT, February 2011.

Older News

20/June/2017Alexander Lewis will join my team as a Ph.D. candidate in September, collaborating with IMAU.
25/Apr/2017 Our Directional Field Synthesis course will be given again at SIGGRAPH 2017.
26/Mar/2017I have one paper conditionally accepted to SIGGRAPH 2017!
16/Mar/2017The Faculty of science granted me a full Ph.D. position for collaboration with IMAU on the processing of big-data directional fields with the context of precipition and air flows. The formal job description, and the application forms, are here.
9/Feb/2017I will give a tutorial on Directional Fields at the SGP Summer School.
27/Jan/2016I was invited to give a short course about the challenges of meshing in architectural geometry, at the 26th International Meshing Roundtable conference at Barcelona, Spain.
9/Dec/2016The webpage for our course is online. It contains full slides, demos, and the course notes.
27/Oct/2016The code for "Conformal Mesh Deformations with Möbius Transformations" is online! It will be incorporated fully into libhedra in the near future.
20/Oct/2016 The faculty of mathematics (die Fakultät für Mathematik und Geoinformation) at TU Wien (Vienna) honored our paper "Conformal Mesh Deformations with Möbius Transformations" with the best paper award for the year 2015!
21/Sep/2016A preliminary version of libhedra is in GitHub. It is a library targeting the geometric processing and optimization of polygonal (non-triangular) meshes. Currently it contains a working implementation of "Modeling Polyhedral Meshes with Affine Maps", my paper from 2012 (see publications).
22/Aug/2016Our course "Directional Field Synthesis, Design, and Processing" (following the Eurographics State-of-the-art report) will be given in SIGGRAPH Asia 2016.
21/Mar/2016 I have been invited to serve as an Associate Editor for The Visual Computer, and in the SIGGRAPH Asia 2016 Workshops Committee.
25/Jan/2016 Our State-of-the-art report, titled "Directional Field Synthesis, Design, and Processing" was conditionally accepted to Eurographics 2016.
02/Dec/2015 I will serve on the Program Commitees of both SGP and SMI 2016, as part of the International Geometry Summit.
27/Oct/2015 Our paper Polyhedral Patterns has made the cover of the proceedings of SIGGRAPH Asia 2015 (Transactions on Graphics)!
26/Aug/2015 The Ph.D. position in three-dimensional models and manipulation is still open (until the 6/Sep).
7/Aug/2015 I have one paper conditionally accepted to SIGGRAPH ASIA 2015.
1/Aug/2015 Hello!