Visual
Computing

Wojtan group

Faculty

 Chris Wojtan

Chris Wojtan

Chris Wojtan heads the Computer Graphics and Physics Simulation group at ISTA. He and his group develop geometric and numerical algorithms for computer animation and geometry processing and try to find new efficient and robust ways to simulate solid and fluid dynamics, control physics simulations, and compute with 3D shapes.

Administrative Assistants

 Dafne Rosina Valdez Lopez

Dafne Rosina Valdez Lopez

Senior Researchers

 Mickaël Ly

Mickaël Ly

Mickaël obtained his PhD at Inria Grenoble-Rhône Alpes in the Elan team under the supervision of Florence Bertails-Descoubes and Mélina Skouras, researching the direct simulation and inverse design of garments in the presence of frictional contact. Currently, he works on the representation of signals on moving surfaces.

PhD Students

 Yi-Lu Chen

Yi-Lu Chen

Yi-Lu is a PhD student at ISTA, supervised by Chris Wojtan. He researches algorithms for the simulation of rigid body dynamics in the presence of frictional contacts and shock propoagation, as well as the simulation of granular materials.

 Sadashige Ishida

Sadashige Ishida

Sadashige researches mathematics, physics, and also computer simulation of natural phenomena. He is especially interested in exploring the dynamics and the geometry that fluids can exhibit from viewpoints of geometric mechanics (symplectic, Poisson, and contact geometry) and optimal transport. To know more, visit his website.

 Aleksei Kalinov

Aleksei Kalinov

Aleksei is a PhD student in Chris Wojtan’s group at ISTA. His research interests are physically-based modeling and animation, deep learning and design of efficient algorithms and data structures.

 Mau Rojas Vega

Mau Rojas Vega

Mau is a PhD student at ISTA, co-affiliated with Chris Wojtan and Andela Šarić. In his research, hemodels the morphology of biomembranes using triangulated meshes.

 Peter Synak

Peter Synak

Peter is a PhD student at ISTA, supervised by Chris Wojtan. He researches how to robustly handle topological changes on non-manifold moving meshes.

 Evgeny Zuenko

Evgeny Zuenko

Evgeny is a PhD student at ISTA and is currently working on water-wave simulation with geometrical optics.

Engineers

 Christian Hafner

Christian Hafner

Christian did his PhD in computational design and digital fabrication under the supervision of Bernd Bickel’s group at ISTA. In his research, he tries to find out how the physical limits of mechanical systems can be described geometrically. He is now the research software engineer in Chris Wojtan’s group.

Interns

 Alice Wei

Alice Wei

Alice is a research intern at ISTA, supervised by Chris Wojtan. She works on a two-dimensional version of a multi-material mesh-based surface tracker.

Alumni

 Stefan Jeschke

Stefan Jeschke

Stefan got his M.Sc. in 2001 and a Ph.D. in 2005, both in computer science from the University of Rostock, Germany. Afterwards, he spent several years as a post doc researcher in projects at TU Wien and Arizona State University, and as a physics simulation researcher at Nvidia. His research interests include modeling and display of vectorized image representations, applications and solvers for PDEs, as well as modeling and rendering complex natural phenomena, preferably in real time.

 Ihor Zvieriev

Ihor Zvieriev

  • Intern   2023
  • Software Engineer at Arm as of 2023

Ihor is an intern in the Wojtan group, and works on the simulation of crack formation and propagation in complex materials.

 Christine François-Rennhofer

Christine François-Rennhofer

  • Assistant   2023
  • Administrative Assistant at ISTA as of 2023
 Huidong Yang

Huidong Yang

  • Postdoc   2022
  • Postdoc at University of Vienna as of 2023
 Georg Sperl

Georg Sperl

  • PhD Student   2022
  • Research Scientist at CLO Virtual Fashion as of 2023
  • sperl.me/

Physics-Based Simulation

 Tomas Skrivan

Tomas Skrivan

 Camille Schreck

Camille Schreck

  • Postdoc   2020
  • Starting Faculty at Inria Nancy in the MFX Team as of 2023
  • schreckc.github.io/

I am now a researcher in the MFX Team at Inria Nancy in France (https://mfx.loria.fr/). I was a postdoc researcher at IST Austria in Chris Wojtan Group between 2016 and 2020. I am interested in physics-based simulation and modeling natural phenoma as well as geometric modeling. I obtained my PhD in 2016 at the University of Grenoble-Alpes, supervised by Stefanie Hahmann and Damien Rohmer of the Imagine Team. I got an Engenieering Degree in 2013 from the school ENSIMAG (Grenoble INP) of Grenoble, France.

 Radhika Prasad

Radhika Prasad

  • Intern   2019
 Ewa Gajda-Zagórska

Ewa Gajda-Zagórska

  • Postdoc   2019
  • Research & Analytics Manager at HSBC as of 2023

I got my MSc in Computer Science in 2009 from the Jagiellonian University in Cracow, Poland. Then I obtained a PhD in 2015 at the AGH University of Science and Technology in Cracow. Currently I am a postdoc researcher in Chris Wojtan’s group. My research interests include physics-based simulations, multiobjective optimization and evolutionary algorithms.

 Patrick Blies

Patrick Blies

  • Postdoc   2018
  • Research Engineer at EnliteAI as of 2023
 Krystof Kolar

Krystof Kolar

  • Intern   2017
 Klint Qinami

Klint Qinami

  • Intern   2017
  • Staff Engineer at Qualcomm as of 2023
 Hikaru Ibayashi

Hikaru Ibayashi

I got my B.Sc. in Physics from the University of Tokyo, and I’m now a master student in computer graphics under the supervision of Takeo Igarashi (expecting M.Sc. in Computer Science in March, 2017). I was mainly working on virtual reality and fluid simulation so far. My current research interests are physics-based simulation, computer vision and applied math.

 David Hahn

David Hahn

  • PhD Student   2017
  • Postdoc at TU Wien as of 2023

I’m a PhD student in Chris Wojtan’s group mostly working on simulations of brittle fracture. I’ve previously studied simulation engineering at St. Pölten University of Applied Sciences.

 Ryoichi Ando

Ryoichi Ando

  • Postdoc   2016
  • Cloth Simulation Research Engineer at ZOZO as of 2023

Fluid Simulation

 Morten Bojsen-Hansen

Morten Bojsen-Hansen

  • PhD Student   2016
  • Principal Engineer at Autodesk as of 2023
  • alas.dk

Morten Bojsen-Hansen is a fifth year PhD student advised by Chris Wojtan. He studied Computer Science at Aarhus University. His primary research interest is physics-based animation.

 Selver Pepić

Selver Pepić

  • Intern   2015
  • PhD Student at Universität Heidelberg as of 2024

ISTernship, Physics-based Simulation