jan novák
jan novák
Jan Novák
Sr. Research Scientist
~
NVIDIA
Europaallee 39
8004 Zürich, Switzerland
~
jnovak 'at' nvidia 'dot' com
https://jannovak.info
Google scholar

about

I am a senior research scientist at NVIDIA working at the cross-section of rendering and machine learning. Prior to joining NVIDIA, I worked as a research scientist leading the Rendering Group at Disney Research Zürich. I received a B.Sc. (2007) and a M.Sc. (2009) degree from the Czech Technical University in Prague, and a Ph.D. degree (2014) from the Karlsruhe Institute of Technology under the supervision of Carsten Dachsbacher.

I interned at DRZ (2011), and at Pixar Animation Studios (2012), and also worked as a senior software engineer at the Walt Disney Animation Studios where I contributed to the development of the Hyperion Renderer. My research interests span (volumetric) light-transport simulation, acceleration data structures for ray tracing, GPU computing, and machine learning.

I am happily married and fully occupied with training three remarkably resistant deep nets.

publications

Neural Importance Sampling
Neural Importance Sampling
Authors:
Thomas Müller, Brian McWilliams, Fabrice Rousselle, Markus Gross, Jan Novák
Published:
Transaction on Graphics (presented at SIGGRAPH 2019)-- to appear
Los Angeles, USA, July 28 -- August 1, 2019
A Radiative Transfer Framework for Non-exponential Media
A Radiative Transfer Framework for Non-exponential Media
Authors:
Benedikt Bitterli, Srinath Ravichandran, Thomas Müller, Magnus Wrenninge, Jan Novák, Steve Marschner, Wojciech Jarosz
Published:
Transaction on Graphics (Proceedings of SIGGRAPH Asia 2018), vol. 37, no. 6
Tokyo, Japan, December 4-7, 2018
Appearance Capture and Modeling of Human Teeth
Appearance Capture and Modeling of Human Teeth
Authors:
Zdravko Velinov, Marios Papas, Derek Bradley, Paolo Gotardo, Parsa Mirdehghan, Steve Marschner, Jan Novák, Thabo Beeler
Published:
Transaction on Graphics (Proceedings of SIGGRAPH Asia 2018), vol. 37, no. 6
Tokyo, Japan, December 4-7, 2018
Denoising with Kernel Prediction and Asymmetric Loss Functions
Denoising with Kernel Prediction and Asymmetric Loss Functions
Authors:
Thijs Vogels, Fabrice Rousselle, Brian McWilliams, Gerhard Röthlin,
Alex Harvill, David Adler, Mark Meyer, Jan Novák
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH 2018), vol. 37, no. 4
Vancouver, Canada, August 12-16, 2018
Machine Learning and Rendering
Machine Learning and Rendering
Authors:
Alexander Keller, Jaroslav Křivánek, Jan Novák, Anton Kaplanyan, Marco Salvi
Published:
ACM SIGGRAPH Courses
Vancouver, Canada, August 12-16, 2018
Denoising Deep Monte Carlo Renderings
Denoising Deep Monte Carlo Renderings
Authors:
Delio Vicini, David Adler, Jan Novák, Fabrice Rousselle, Brent Burley
Published:
Computer Graphics Forum
2018
Reversible Jump Metropolis Light Transport using Inverse Mappings
Reversible Jump Metropolis Light Transport using Inverse Mappings
Authors:
Benedikt Bitterli, Wenzel Jakob, Jan Novák, and Wojciech Jarosz
Published:
ACM Transactions on Graphics (presented at SIGGRAPH 2018), vol. 37, no. 1
New York, NY, USA, October, 2017
Monte Carlo Methods for Volumetric Light Transport Simulation
Monte Carlo Methods for Volumetric Light Transport Simulation
Authors:
Jan Novák, Iliyan Georgiev, Johannes Hanika, Wojciech Jarosz
Published:
Computer Graphics Forum (presented at EUROGRAPHICS 2018 - State of the Art Rep.), vol. 37, no. 2
Delft, Netherlands, April 16-20, 2018
Deep Scattering: Rendering Atmospheric Clouds with Radiance-Predicting Neural Networks
Deep Scattering: Rendering Atmospheric Clouds with Radiance-Predicting Neural Networks
Authors:
Simon Kallweit, Thomas Müller, Brian McWilliams, Markus Gross, Jan Novák
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2017), vol. 36, no. 6
Bangkok, Thailand, November, 2017
Spectral and Decomposition Tracking for Rendering Heterogeneous Volumes
Spectral and Decomposition Tracking for Rendering Heterogeneous Volumes
Authors:
Peter Kutz, Ralf Habel, Yining Karl Li, and Jan Novák
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH 2017), vol. 36, no. 4
Los Angeles, USA, July 05 -- August 03, 2017
Kernel-Predicting Convolutional Networks for Denoising Monte Carlo Renderings
Kernel-Predicting Convolutional Networks for Denoising Monte Carlo Renderings
Authors:
Steve Bako*, Thijs Vogels*, Brian McWilliams, Mark Meyer, Jan Novák,
Alex Harvill, Pradeep Sen, Tony DeRose, and Fabrice Rousselle
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH 2017), vol. 36, no. 4
Los Angeles, USA, July 05 -- August 03, 2017
Practical Path Guiding for Efficient Light-Transport Simulation
Practical Path Guiding for Efficient Light-Transport Simulation
Authors:
Thomas Müller, Markus Gross, and Jan Novák
Published:
Computer Graphics Forum (Proceedings of EGSR 2017), vol. 36, no. 4
Helsinki, Finland, June 20-22, 2017
Image-space Control Variates for Rendering
Image-space Control Variates for Rendering
Authors:
Fabrice Rousselle, Wojciech Jarosz, and Jan Novák
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2016), vol. 35, no. 6
Macao, China, December 05-08, 2016
Efficient Rendering of Heterogenous Polydisperse Granular Media
Efficient Rendering of Heterogenous Polydisperse Granular Media
Authors:
Thomas Müller, Marios Papas, Markus Gross, Wojciech Jarosz, and Jan Novák
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2016), vol. 35, no. 6
Macao, China, December 05-08, 2016
Reduced Aggregate Scattering Operators for Path Tracing
Reduced Aggregate Scattering Operators for Path Tracing
Authors:
Adrian Blumer, Jan Novák, Ralf Habel, Derek Nowrouzezahrai, Wojciech Jarosz
Published:
Computer Graphics Forum (Proceedings of Pacific Graphics 2016), vol. 35, no. 7
Okinawa, Japan, October 11-14, 2016
Nonlinearly Weighted First-order Regression for Denoising Monte Carlo Renderings
Nonlinearly Weighted First-order Regression for Denoising Monte Carlo Renderings
Authors:
Benedikt Bitterli, Fabrice Rousselle, Bochang Moon, José A. Iglesias-Guitián,
David Adler, Kenny Mitchell, Wojciech Jarosz, and Jan Novák
Published:
Computer Graphics Forum (Proceedings of EGSR 2016), vol. 35, no. 4
Dublin, Ireland, June 22-24, 2016
Subdivision Next-Event Estimation for Path-Traced Subsurface Scattering
Subdivision Next-Event Estimation for Path-Traced Subsurface Scattering
Authors:
David Koerner, Jan Novák, Peter Kutz, Ralf Habel, and Wojciech Jarosz
Published:
Proceedings of EGSR 2016, Experimental Ideas & Implementations
Dublin, Ireland, June 22-24, 2016
Portal-Masked Environment Map Sampling
Portal-Masked Environment Map Sampling
Authors:
Benedikt Bitterli, Jan Novák, and Wojciech Jarosz
Published:
Computer Graphics Forum (Proceedings of EGSR 2015), vol. 34, no. 4
Darmstadt, Germany, 2015
Residual Ratio Tracking for Estimating Attenuation in Participating Media
Residual Ratio Tracking for Estimating Attenuation in Participating Media
Authors:
Jan Novák, Andrew Selle, and Wojciech Jarosz
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2014), vol. 33, no. 6
Shenzen, China, December 3-6, 2014
Efficient Many-Light Rendering of Scenes with Participating Media
Efficient Many-Light Rendering of Scenes with Participating Media
Authors:
Jan Novák
Published:
Ph.D. dissertation
Karlsruhe, Germany, 2014
Progressive Visibility Caching for Fast Indirect Illumination
Progressive Visibility Caching for Fast Indirect Illumination
Authors:
Justus Ulbrich, Jan Novák, Hauke Rehfeld, and Carsten Dachsbacher
Published:
Proceedings of International Workshop on Vision, Modeling, and Visualization (VMV'13)
Lugano, Switzerland, September 11-13, 2013
Path-Space Manipulation of Physically-Based Light Transport
Path-Space Manipulation of Physically-Based Light Transport
Authors:
Thorsten-W. Schmidt, Jan Novák, Johannes Meng, Anton Kaplanyan, Tim Reiner, Derek Nowrouzezahrai, and Carsten Dachsbacher
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH 2013), vol. 32, no. 4
Anaheim, USA, July 21-25, 2013
Scalable Realistic Rendering with Many-Light Methods
Scalable Realistic Rendering with Many-Light Methods
Authors:
Carsten Dachsbacher, Jaroslav Křivánek, Miloš Hašan, Adam Arbree, Bruce Walter, and Jan Novák
Published:
Computer Graphics Forum (presented at EUROGRAPHICS 2013 - State of the Art Rep.), vol. 33, no. 1
Girona, Spain, May 6-10, 2013
Progressive Virtual Beam Lights
Progressive Virtual Beam Lights
Authors:
Jan Novák, Derek Nowrouzezahrai, Carsten Dachsbacher, and Wojciech Jarosz
Published:
Computer Graphics Forum (Proceedings of EGSR 2012), vol. 31, no. 4
Paris, France, June 27-29, 2012
Virtual Ray Lights for Rendering Scenes with Participating Media
Virtual Ray Lights for Rendering Scenes with Participating Media
Authors:
Jan Novák, Derek Nowrouzezahrai, Carsten Dachsbacher, and Wojciech Jarosz
Published:
ACM Transactions on Graphics (Proceedings of SIGGRAPH 2012), vol. 31, no. 4
Los Angeles, USA, August 5-9, 2012
Approximate Bias Compensation for Rendering Scenes with Heterogeneous Participating Media
Approximate Bias Compensation for Rendering Scenes with Heterogeneous Participating Media
Authors:
Thomas Engelhardt, Jan Novák, Thorsten-W. Schmidt, and Carsten Dachsbacher
Published:
Computer Graphics Forum (Proceedings of Pacific Graphics 2012), vol. 31, no. 7
Hong Kong, China, September 12-14, 2012
Rasterized Bounding Volume Hierarchies
Rasterized Bounding Volume Hierarchies
Authors:
Jan Novák and Carsten Dachsbacher
Published:
Computer Graphics Forum (Proceedings of EUROGRAPHICS 2012), vol. 31, no. 2
Cagliary, Italy, May 13-18, 2012
Screen-Space Bias Compensation for Interactive High-Quality Global Illumination with Virtual Point Lights
Screen-Space Bias Compensation for Interactive High-Quality Global Illumination with Virtual Point Lights
Authors:
Jan Novák, Thomas Engelhardt, and Carsten Dachsbacher
Published:
ACM Siggraph Symposium on Interactive 3D Graphics and Games (I3D '11)
San Francisco, USA, February 18-20, 2011
Path Regeneration for Random Walks
Path Regeneration for Random Walks
Authors:
Jan Novák, Vlastimil Havran, and Carsten Dachsbacher
Published:
GPU Computing Gems - Emerald Edition
Morgan Kaufmann Publishers Inc., 2011
Instant Multiple Scattering for Interactive Rendering of Heterogeneous Participating Media
Instant Multiple Scattering for Interactive Rendering of Heterogeneous Participating Media
Authors:
Thomas Engelhardt, Jan Novák, and Carsten Dachsbacher
Published:
Technical Report
KIT - Karlsruhe Institut of Technology, December 8, 2010
Path Regeneration for Interactive Path Tracing
Path Regeneration for Interactive Path Tracing
Authors:
Jan Novák, Vlastimil Havran, and Carsten Dachsbacher
Published:
EUROGRAPHICS 2010 - Short papers
Norrköping, Sweden, May 3-7, 2010

teaching

WS 2018 (ETH)

WS 2017 (ETH)

WS 2016 (ETH)

WS 2015 (ETH)

SS 2015 (ETH)

SS 2013 (KIT)

WS 2012/2013 (KIT)

SS 2012 (KIT)

WS 2011/2012 (KIT)

SS 2011 (KIT)

WS 2010/2011 (KIT)

miscellaneous

reviewing for

  • Transaction on Graphics, Computer Graphics Forum, IEEE Computer Graphics and Applications, Computers & Graphics
  • SIGGRAPH, SIGGRAPH Asia, Eurographics, EGSR, HPG, Pacific Graphics, Graphics Interface

professional activities

  • IPC member for SIGGRAPH 2019, EGSR 2017, HPG 2017, Pacific Graphics 2019
  • Posters co-chair for EGSR 2014

mentoring

  • Thomas Müller (ETH) - Efficient Light-transport Simulation using Machine Learning, Ph.D. thesis, finished 4/2019
  • Ivo Kondapaneni (DRZ) - 3-month internship, finished 9/2018
  • Xi Deng (DRZ) - 3-month internship, finished 9/2018
  • Yu-chen Tsai (ETH) - Volumetric Reconstruction of Atmospheric Clouds from a Single Image, M.Sc. thesis, finished 4/2018
  • Lifan Wu (DRZ) - 3-month internship, finished 9/2017
  • Matthias Fauconneau (DRZ) - 9-month internship, finished 9/2017
  • Zlatko Velinov (DRZ) 3-month internship, finished 9/2017
  • Simon Kallweit (ETH) - Learning High-Order Scattering in Rendering from Data, M.Sc. thesis, finished 9/2016
  • Thijs Vogels (ETH) - Kernel-predicting Convolutional Neural Networks For Denoising Monte Carlo Renderings, M.Sc. thesis, finished 9/2016
  • Delio Vicini (DRZ) - 3-month internship, finished 9/2016
  • Parsa Mirdehghan (DRZ) 3-month internship, finished 9/2016
  • Thomas Müller (ETH) - Modeling and Rendering Heterogeneous Granular Media, M.Sc. thesis, finished 3/2016
  • Benedikt Bitterli (ETH) - Informed Choices in Primary Sample Space, M.Sc. thesis, finished 9/2015
  • Adrian Blumer (DRZ) - 3-month internship, finished 1/2015
  • David Koerner (DRZ) - 3-month internship, finished 12/2014
  • Shuoran Yang (DRZ) - 6-month part-time internship, finished 8/2014
  • Simon Kallweit (DRZ) - 2-month internship, finished 8/2014
  • Justus Ulbrich (KIT) - Visibility Caching for Progressive Many-Light Algorithms, B.Sc. thesis, finished 5/2012
  • Michael Sohm (KIT) - Progressive Virtual Spherical Lights for Rendering Glossy Scenes, B.Sc. thesis, finished 5/2012
  • Karsten Brand (KIT) - Realistic Screen-Space Subsurface Scattering, Diploma thesis, finished 1/2012
  • Martin Tillman (KIT) - 2D Path Tracing, Study thesis, finished 5/2011