Jaroslav Křivánek

Robust and Efficient Light Transport Simulation in Arbitrary Environments

Research project funded by the Czech Science Foundation (GA ČR).

Abstract

Developing robust light transport simulation algorithms that could efficiently and accurately render a wide variety of environments remains an important challenge for the computer graphics research. The proposed project addresses this problem. Our objective is to deepen the current understanding of the computational structure of light transport simulation and to develop novel general, robust, automatic, and efficient simulation algorithms. Our research methodology is based on the realization that the common origin of the inefficiencies in most existing light transport algorithms is the ineffectiveness of light transport path sampling strategies. We recognize that a number of sub-problems encountered in improving these strategies are in fact special instances of more general problems studied in the prolific Machine Learning research. Studying light transport in this wider context will allow casting the individual problems – so far addressed in an ad hoc manner – in a more formal framework. A wide range of existing and emerging applications will benefit from our results.

Publications

2014

Jaroslav Křivánek and Eugene d'Eon
A Zero-Variance-Based Sampling Scheme for Monte Carlo Subsurface Scattering
ACM SIGGRAPH Talks, 2014.

A. Wilkie, S. Nawaz, M. Droske, A. Weidlich, and J. Hanika,
Hero Wavelength Spectral Sampling
Computer Graphics Forum 33(4) (Proceedings of Eurographics Symposium on Rendering 2014).

Jiří Vorba, Ondřej Karlík, Martin Šik, Tobias Ritschel, and Jaroslav Křivánek,
On-line Learning of Parametric Mixture Models for Light Transport Simulation
ACM Trans. Graph., SIGGRAPH 2014.

Jaroslav Křivánek, Iliyan Georgiev, Toshiya Hachisuka, Petr Vévoda, Martin Šik, Derek Nowrouzezahrai, and Wojciech Jarosz
Unifying points, beams, and paths in volumetric light transport simulation
ACM Trans. Graph., SIGGRAPH 2014.

Tomáš Davidovič, Jaroslav Křivánek, Miloš Hašan, and Philipp Slusallek
Progressive Light Transport Simulation on the GPU: Survey and Improvements
ACM Trans. Graph., 2014.

Ondřej Karlík, Martin Růžička, Václav Gassenbauer, Fabio Pellacini, and Jaroslav Křivánek
Toward Evaluating the Usefulness of Global Illumination for Novices in Lighting Design Tasks
IEEE Transactions on Visualization and Computer Graphics, 20(6), June 2014.

Carsten Dachsbacher, Jaroslav Křivánek, Miloš Hašan, Adam Arbree, Bruce Walter, and Jan Novák.
Scalable Realistic Rendering with Many-Light Methods
Computer Graphics Forum (CGF version of the EG 2013 State of the Art Report)

Jaroslav Křivánek, Alexander Keller, Iliyan Georgiev, Anton S. Kaplanyan, Marcos Fajardo, Mark Meyer, Jean-Daniel Nahmias, Ondřej Karlík, Juan Canada.
Recent Advances in Light Transport Simulation: Some Theory and a Lot of Practice
SIGGRAPH 2014 Course.

Jaroslav Křivánek, Iliyan Georgiev, Anton Kaplanyan, and Juan Canada
Path Integral Methods for Light Transport Simulation: Theory & Practice
EUROGRAPHICS 2014 Tutorial.

Jaroslav Křivánek
Combining path integral and particle density estimators in light transport simulation
presentation at MCQMC2014 (special session on Advanced light transport simulation)

2013

Alexander Wilkie and Lukáš Hošek
Predicting Sky Dome Appearance on Earth-like Extrasolar Worlds
Spring Conference on Computer Graphics (SCCG 2013), May, 2013.

Iliyan Georgiev, Jaroslav Křivánek, Toshiya Hachisuka, Derek Nowrouzezahrai, and Wojciech Jarosz
Joint Importance Sampling of Low-Order Volumetric Scattering
ACM Trans. Graph. (SIGGRAPH Asia 2013), vol. 32, no. 6., 2013.

Iliyan Georgiev, Jaroslav Křivánek, Tomáš Davidovič, and Philipp Slusallek
Light Transport Simulation with Vertex Connection and Merging
Abstract & presentation at ICTT23 - The 23rd International Conference on Transport Theory, Santa Fe, New Mexico, 2013.

Martin Šik and Jaroslav Křivánek
Fast Random Sampling of Triangular Meshes
Pacific Graphics, Short Papers, 2013.

Jaroslav Křivánek, Iliyan Georgiev, Anton Kaplanyan, and Juan Canada
Recent Advances in Light Transport Simulation: Theory & Practice
SIGGRAPH 2013 Course.

Carsten Dachsbacher, Jaroslav Křivánek, Miloš Hašan, Adam Arbree, Bruce Walter, and Jan Novák.
Scalable Realistic Rendering with Many-Light Methods
Eurographics 2013 - State of the Art Reports, Girona, Spain.