Associate Professor
NSERC/Ubisoft Industrial Research Chair

Electrical & Computer Engineering
Desautels Management (Associate)
Computer Science (Associate)

Québec Artificial
Intelligence Institute

McConnell Eng. Building
3480 University Street
Montreal, Quebec
Canada H3A 0E9

Recent News

Chaitanya also won the Alain Fournier Ph.D. Dissertation Award! Back to back awards for our graduates!
Congratulations to Chaitanya on defending his Ph.D. and starting as Research Scientist at Facebook Reality Labs!
Yue won the Best Student Presentation Award for her Adaptive Light Probe Placement work at i3D!
Our Dynamic Diffuse GI work won the Best Presentation Award at i3D!
Our Graphics Interface BSSRDF Frequency Analysis work won the Michael A. J. Sweeney Best Student Paper Award!
Olivier won the 2018 Alain Fournier Ph.D. Dissertation Award!
We'll present two papers at SIGGRAPH 2019.
Luis' work on multiscale microfacet models for complex lighting was accepted to SIGGRAPH Asia 2018!
Congratulations to Olivier on defending his Ph.D. Thesis and starting as Research Scientist at Facebook Reality Labs!
We'll present two papers at SIGGRAPH 2018 and one at Eurographics: integrating spherical harmonic expansions over clipped polygons, gradient domain volumetric rendering, and BRDF manifolds!
I'm excited to have granted an NSERC Industrial Research Chair in Collaboration with Ubisoft Montreal, working on believable virtual characters!
Congratulations to Olivier on his SIGGRAPH Asia 2017 paper on rendering methods for multi-focal displays!
I have joined the Editorial Board of ACM Transactions on Graphics.
We'll present two papers at SIGGRAPH 2017: Chaitanya's exciting Deep Learning work for Path Tracing, and Laurent's awesome GI filtering paper!
We have three papers accepted to EGSR 2017!
Daniel, Mei and Loïs started their summer internships. Enjoy the warm weather!
Chaitanya, Yangyang, and Nicolas started their PhDs!
Keven, Sayantan, Joey, Myriam and Yue join the GIL. Welcome!
The Graphics & Imaging Lab (The GIL @ McGill) is alive!
Honored to be named a Canada Research Chair in Realistic Image Synthesis
I've joined McGill!
Laurent wraps up his Post-Doc and heads to Unity Research!
UPBP was integrated and released in Pixar's Renderman 21!
Our non-parametric microfacet model was accepted to TOG!
Our work on generalizing k-buffers was accepted to HPG!
Our motion blur work was integrated into Unity.
David M. gets his MSc, heads to 8i as a Research Scientist!
I received an Outstanding Young Computer Science Researcher award from the Canadian Association of Computer Science!
Our fast spherical filtering work was accepted to TOG!
I've been awarded a Tier-II Canada Research Chair in Realistic Image Synthesis.
Just finished co-chairing EGSR. It was a huge hit!
Our surface turbulence paper to SIGGRAPH Asia!
2 papers accepted @ EGSR!
UPBP featured at the International Conference on Transport Theory!
Guofu wraps up his Post-Doc, heads to Baidu!
Mahdi wraps up his Post-Doc, heads to Microsoft!
Aude gets her MSc, heads to Hibernum!
Cihan and Nicolas join the lab. Welcome!
Research Themes

Simulating Physics for Machine Learning

How can physics-based models & solvers boost machine learning architectures (& vice-versa)?

Monte Carlo, Density Estimation & MCMC

How do we efficiently solve multi-dimensional integrals for realistic image and sound synthesis?

Editing Physically-based Light Transport

Can we devise intuitive controls to edit physically-based lighting in synthetic images?

Model Reduction for Dynamics & Lighting

Can reduced models capture complex dynamics?

Editing Complex Fluid Simulations

How do digital artists author turbulent fluid simulations? Can we design tools to help them?

Manufacturing Passive Optics & Probes

Can combining computation with 3D fabrication allow us to warp & capture light in the real world?
Visually browse my research highlights, by theme, below:
  • Beam density estimation and many-light methods.
  • Path connection strategies in light transport.
  • Artist tools for digital content creation.
  • Using fabrication to warp light in the real world.
  • Interactive shadows and global illumination.
  • Capturing geometry and reflectance in the wild.
  • Geometry analysis for artistic line drawings.
Research Group & Teaching
I'm not currently recruiting and will not reply to requests for supervision.
Interested in joining my lab? Please read these instructions.
  • Post-Doc
  • Ph.D.
  • M.Sc.
  • B.Sc. or Intern
  • Graduated
    [Click Here for a Complete List of Graduates...]


    ECSE 343 Numerical Methods for Engineers Winter 2022
    ECSE 446 Realistic Image Synthesis Fall 2022 [F2018, F2019]
    ECSE 546 Advanced Image Synthesis Fall 2022 [F2018, F2019]
    ECSE 443 Numerical Methods Winter 2020
    ECSE 222 Digital Logic Fall 2018 [W2017, F2017]
    ECSE 689 Realistic Image Synthesis Fall 2017 [2016, 2017]
    IFT6095 Real-time Rendering Winter 2016 [2013-2015]
    IFT6350 Advanced Computer Graphics Winter 2015
    IFT3355 Computer Graphics Winter 2016 [2012-2015]
    IFT2740 Tools for 3D Graphics Fall 2015 [2014]
    IFT3730 3D Computer Graphics Winter 2013 [2013]
    IFT3150 Senior Project Winter 2016 [2013-2015]
    IFT4055 Honors Senior Project Winter 2015 [2013-2014]
    IFT3151 Senior Internship Project Winter 2015 [2013-2014]
    Service & Industry Experience
    Chairing and Editorships
    Associate Editor - ACM Transactions on Graphics [current]
    Interactive 3D Graphics and Games (i3D) [2018]
    Eurographics Symposium on Rendering (EGSR) [2015]
    SIBGRAPI - Conf. on Graphics, Patterns & Images [2014]
    International Program Committees
    SIGGRAPH Asia [2012-13, 2015]
    Eurographics (EG) [2014]
    EG Symposium on Rendering (EGSR) [2011, 2013]
    High Performance Graphics (HPG) [2012]
    Pacific Graphics (PG) [2013]
    Interactive 3D Graphics & Games (I3D) [2014]

  • On Steering Committee for Graphics Interface conference.
  • Reviewing
  • Transactions on Graphics
  • SIGGRAPH Sketches
  • Eurographics
  • EG Symposium on Rendering
  • CG Forum
  • High Performance Computing
  • Pacific Graphics
  • Interactive 3D Graphics and Games
  • Computers & Graphics
  • C&G Spec. Ed. on Natural Phenomena
  • Graphics Interface
  • Companies I've worked for
    Microsoft Microsoft Research Redmond Disney Research Zurich
    Research in Motion Electronic Arts Canada