Eitan Grinspun

ASSOCIATE PROFESSOR OF COMPUTER SCIENCE; ASSOCIATE PROFESSOR OF APPLIED PHYSICS AND APPLIED MATHEMATICS

626 CEPSR

Tel(212) 939-7057
Fax(646) 775-6054

Eitan Grinspun designs computer graphics algorithms that address a broad range of geometric and physical problems, such as predicting the motion and deformation of materials, processing of 3D geometric data, and interactive tools for engineering design. He is particularly interested in applying geometric insights in computation, and in discrete differential geometry as a language for discovering and codifying such insights. 

Research Interests

Computer science, computer graphics, computational mechanics, geometry processing, discrete differential geometry, contact mechanics, interactive design.

The physical models he has developed predict how objects move and deform, e.g., the propulsion of flagella in microorganisms, laying down of suboceanic pipelines, drape of a dress on a dancer, and billowing of hair in the wind. He is particularly interested in contact mechanics for rigid, elastic, and slender materials. The geometry processing algorithms he has developed enable interactive deformation, smoothing, denoising, and hole-filling of 3D surfaces, set-theoretic operations on solid objects, tracking of advancing fronts, and interference-detection and correction. He has developed software tools for interactive design of fashion apparel, mechanical linkages, inflatable structures, wire sculptures and facades.

Technologies developed by Grinspun’s lab are used in products such as Adobe Photoshop & Illustrator, at major film studios and recent films such as Moana, and in basic condensed matter and engineering research. His film credits include The Hobbit, Rise of the Planet of the Apes, and Steven Spielberg's The Adventures of Tintin. He has been profiled in The New York Times, Scientific American, New Scientist, and mentioned in Variety.

Grinspun was Professeur d'Université Invité at l'Université Pierre et Marie Curie in Paris in 2009, a Research Scientist at the Courant Institute from 2003-2004, a graduate student at the California Institute of Technology from 1997-2003, and an undergraduate in Engineering Science at the University of Toronto from 1993-1997. He was named an NVIDIA Fellow in 2001, Everhart Distinguished Lecturer in 2003, NSF CAREER Awardee in 2007, Alfred P. Sloan Research Fellow in 2010-2012, one of Popular Science’s "Brilliant Ten Scientists" in 2011, and one of Fast Company’s "Most Creative People in Business" in 2013. 

RESEARCH EXPERIENCE

  • Professeur d'Université Invité, l'Université Pierre et Marie Curie, Paris, 2009
  • Research Scientist, Courant Institute of Mathematical Sciences, New York, 2003-2004

PROFESSIONAL EXPERIENCE

  • Associate professor of applied physics and applied mathematics, Columbia University, 2015–present
  • Associate professor of computer science, Columbia University, 2009–present
  • Assistant professor of computer science, Columbia University, 2004–2009

PROFESSIONAL AFFILIATIONS

  • Association of Computing Machinery

HONORS & AWARDS

  • NVIDIA Fellow, 2001
  • Everhart Distinguished Lecturer, 2003
  • NSF CAREER, 2007
  • Alfred P. Sloan Research Fellow, 2010-2012
  • Brilliant Ten Scientists, Popular Science Magazine, 2011
  • Most Creative People in Business, Fast Company magazine, 2013

SELECTED PUBLICATIONS

  • F. Da, D. Hahn, C. Batty, C. Wojtan, E. Grinspun. Surface-only liquids. ACM Transactions on Graphics (TOG), 2016, 35 (4), 78. 
  • A. Garg, A. Jacobson, E. Grinspun. Computational design of reconfigurables. ACM Trans- actions on Graphics (TOG), 2016, 35 (4). 
  • M. K. Jawed, N. K. Khouri, F. Da, E. Grinspun, P. Reis. Propulsion and instability of a flexible helical rod rotating in a viscous fluid. Physical Review Letters, 2015, 115 (16), 168101. 
  • F. Da, C. Batty, C. Wojtan, E. Grinspun. Double Bubbles Sans Toil and Trouble: A Circulation- Preserving Vortex Sheet Model for Soap Films and Foams. ACM Transactions on Graphics (Proceedings of SIGGRAPH 2015). 
  • Y. Li, D. Xu, Y. Yue, Y. Wang, S-F Chang, E. Grinspun, P. K. Allen. Regrasping and Unfolding of Garments Using Predictive Thin Shell Modeling. IEEE International Conference on Robotics and Automation. IEEE International Conference on Robotics and Automation (ICRA), Seattle, May 2015. 
  • M. Jawed, F. Da, J. Joo, E. Grinspun, P. Reis. Coiling of elastic rods on rigid substrates. Proceedings of the National Academy of Sciences, 2014, 111 (41), 14663–14668. 
  • F. Da, C. Batty, E. Grinspun. Multimaterial Mesh-Based Surface Tracking. Transactions on Graphics (Proceedings of SIGGRAPH 2014). 
  • D. Kaufman, R. Tamstorf, B. Smith, J.-M. Aubry, E. Grinspun. Adaptive Nonlinearity for Col- lisions in Complex Rod Assemblies. ACM Transactions on Graphics (Proceedings of SIGGRAPH 2014). 
  • B. Audoly, N. Clauvelin, P.-T. Brun, M. Bergou, E. Grinspun, M. Wardetzky. A discrete geo- metric approach for simulating the dynamics of thin viscous threads. Journal of Computational Physics, Vol. 253, Nov, 2013. 
  • Breannan Smith, Danny Kaufman, Etienne Vouga, Rasmus Tamstorf, Eitan Grinspun. Reflec- tions on Simultaneous Impact. ACM Transactions on Graphics (SIGGRAPH Conference Proceed- ings). 31(4), 2012, pp. 106:1–106:12. 
  • Christopher Batty, Andres Uribe, Basile Audoly, Eitan Grinspun. Discrete Viscous Sheets. ACM Transactions on Graphics (SIGGRAPH Conference Proceedings). 31(4), 2012, pp. 113:1–113:7. 
  • David Harmon, Etienne Vouga, Breannan Smith, Rasmus Tamstorf, Eitan Grinspun. Asynchronous Contact Mechanics. Communications of the ACM. 55(4), 2012, pp. 102–109. 
  • Etienne Vouga, David Harmon, Rasmus Tamstorf, Eitan Grinspun. Asynchronous Variational Contact Mechanics. Computer Methods in Applied Mechanics and Engineering. 200(25–28), 2011, pp. 2181–2194. 
  • Nobuyuki Umetani, Danny Kaufman, Takeo Igarashi and Eitan Grinspun. Sensitive Couture for interactive garment editing and modeling. ACM Transactions on Graphics (SIGGRAPH Con- ference Proceedings). 30(4), 2011, pp. 90:1–90:12. 
  • Seyed E. Mousavi, Eitan Grinspun and N. Sukumar. Higher-order extended finite elements with harmonic enrichment functions for complex crack problems. International Journal for Nu- merical Methods in Engineering. 86(4–5), 2011, pp. 560–574. 
  • Miklós Bergou, Basile Audoly, Etienne Vouga, Max Wardetzky, Eitan Grinspun. Discrete Vis- cous Threads. ACM Transactions on Graphics (SIGGRAPH Conference Proceedings). 29(4), 2010, pp. 116:1–116:10. 
  • Eric Risser, Charles Han, Rozenn Dahyot, Eitan Grinspun. Synthesizing Image Hybrids. ACM Transactions on Graphics (SIGGRAPH Conference Proceedings). 29(4), 2010, pp. 85:1–85:6. 
  • Ari Stern, Eitan Grinspun. Implicit-Explicit Variational Integration of Highly Oscillatory Problems. SIAM Multiscale Modeling and Simulation, 7(4), 2009, pp. 1779–1794. 
  • Miklós Bergou, Max Wardetzky, Stephen Robinson, Basile Audoly, Eitan Grinspun. Discrete Elastic Rods. ACM Transactions on Graphics (SIGGRAPH Conference Proceedings). 27(3), 2008, pp. 63:1–63:12. 
  • Charles Han, Eric Risser, Ravi Ramamoorthi, Eitan Grinspun. Multiscale Texture Synthesis. ACM Transactions on Graphics (SIGGRAPH Conference Proceedings). 27(3), 2008, pp. 51:1–51:8. 
  • Max Wardetzky, Miklós Bergou, David Harmon, Denis Zorin, Eitan Grinspun. Discrete quadratic curvature energies. Computer Aided Geometric Design, 24(8–9), 2007, pp. 499–518. 
  • Max Wardetzky, Saurabh Mathur, Felix Kälberer, Eitan Grinspun. Discrete Laplace operators: No free lunch. Proceedings of the Symposium on Geometry Processing (SGP). 2007. 
  • Jeff Bolz, Ian Farmer, Eitan Grinspun, Peter Schröder. Sparse matrix solvers on the GPU: conjugate gradients and multigrid. ACM Transactions on Graphics (SIGGRAPH Conference Proceedings). 22(3), 2003, pp. 917–924. 

SELECTED FILM CREDITS

  • Comment j'ai détesté les maths. Director: Olivier Peyon. 2013.
    Cast (actor).
  • The Hobbit: An Unexpected Journey. Director: Peter Jackson. 2012.
    Visual effects research & development (Weta Digital).
  • The Adventures of Tintin. Director: Steven Spielberg. 2011.
    Visual effects research & development (Weta Digital).
  • Rise of the Planet of the Apes. Director: Rupert Wyatt. 2011.
    Visual effects research & development (Weta Digital).