Dr.-Ing. Pascal Grittmann

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Dr.-Ing. Pascal Grittmann Postdoc

Saarland University
Computer Graphics Lab
Saarland Informatics Campus E1 1, Room E17, 66123 Saarbrücken, Germany
Research Interests
efficient and robust global illumination (multiple) importance sampling adaptive sampling

Projects

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Adaptive and lightweight bidirectional rendering algorithms

Investigates methods to make bidirectional rendering more efficient and easier to use. Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 540768663

View Details

Professional Scientific Activities

  • EGSR 2021
    Conference co-chair The Eurographics symposium on rendering is the main specialized conference for rendering-related research.

Biography

Hi, I’m Pascal! Born and raised in Saarland, I strictly follow our state motto: “Hauptsach gudd gess” (roughly translates to: “The most important thing is to eat well”).

What got me into computer graphics (and computer science in the first place) was the wish to make my own video games as a kid. I’ve also always been fascinated by physics, and I’ve always derived a slightly masochistic enjoyment from solving challenging (math) problems. But mostly, I simply like to make stuff.

My research goal is to find the ultimate rendering algorithm that can render anything, with the least amount of user intervention, and at the lowest possible render time. Currently, I am mostly investigating how path guiding and bidirectional rendering methods can be modified to get closer to that goal.

My favorite spare time activities are eating good food and cooking.

Publications

Q. Hua P. Grittmann P. Slusallek
Revisiting Controlled Mixture Sampling for Rendering Applications
Publication Type: Article, ACM Transactions on Graphics (Proceedings of SIGGRAPH 2023), 42(4), 2023
@article{Hua2023,
  author          = {Hua, Qingqin and Grittmann, Pascal and Slusallek, Philipp},
  title           = {Revisiting Controlled Mixture Sampling for Rendering Applications},
  journal         = {ACM Transactions on Graphics (Proceedings of SIGGRAPH 2023)},
  volume          = {42},
  number          = {4},
  year            = {2023},
  month           = {jul},
  doi             = {10.1145/3592435},
  publisher       = {ACM}
}
M. Korać C. Salaün I. Georgiev P. Grittmann P. Slusallek K. Myszkowski G. Singh
Perceptual error optimization for Monte Carlo animation rendering
Publication Type: Article, ACM SIGGRAPH Asia 2023 Conference Proceedings
@inproceedings{Korac:2023:PerceptualErrorOptimizationAnimation,
  author = {Mi\v{s}a Kora\'{c} and Corentin Sala\"{u}n and Iliyan Georgiev and Pascal Grittmann and Philipp Slusallek and Karol Myszkowski and Gurprit Singh},
  title = {Perceptual error optimization for Monte Carlo animation rendering},
  booktitle = {ACM SIGGRAPH Asia 2023 Conference Proceedings},
  year = {2023},
  doi = {10.1145/3610548.3618146},
  isbn = {979-8-4007-0315-7/23/12}
}
P. Grittmann Ö. Yazici I. Georgiev P. Slusallek
Efficiency-aware multiple importance sampling for bidirectional rendering algorithms
Publication Type: Article, ACM Transactions on Graphics (Proceedings of SIGGRAPH 2022), 41(4): 80:1-80:12, 2022
@article{Grittmann2022,
  author          = {Grittmann, Pascal and Yazici, Ömercan and Georgiev, Iliyan and Slusallek, Philipp},
  title           = {Efficiency-Aware Multiple Importance Sampling for Bidirectional Rendering Algorithms},
  journal         = {ACM Transactions on Graphics (Proceedings of SIGGRAPH 2022)},
  numpages        = {12},
  volume          = {41},
  number          = {4},
  articleno       = {80},
  year            = {2022},
  month           = {jul},
  doi             = {10.1145/3528223.3530126},
  publisher       = {ACM}
}
A. Rath P. Grittmann S. Herholz P. Weier P. Slusallek
EARS: Efficiency-Aware Russian Roulette and Splitting
Publication Type: Article, ACM Transactions on Graphics (Proceedings of SIGGRAPH 2022), 41(4): 81:1-81:14, 2022
@article{Rath2022,
  author          = {Rath, Alexander and Grittmann, Pascal and Herholz, Sebastian and Weier, Philippe and Slusallek, Philipp},
  title           = {EARS: Efficiency-Aware Russian Roulette and Splitting},
  journal         = {ACM Transactions on Graphics (Proceedings of SIGGRAPH 2022)},
  numpages        = {14},
  volume          = {41},
  number          = {4},
  articleno       = {81},
  year            = {2022},
  month           = {jul},
  doi             = {10.1145/3528223.3530168},
  publisher       = {ACM}
}
P. Grittmann I. Georgiev P. Slusallek
Correlation-aware multiple importance sampling for bidirectional rendering algorithms
Publication Type: Article, Computer Graphics Forum (Proceedings of EUROGRAPHICS 2021), 40(2), 2021
@article{Grittmann2021,
  author          = {Grittmann, Pascal and Georgiev, Iliyan and Slusallek, Philipp},
  title           = {Correlation-Aware Multiple Importance Sampling for Bidirectional Rendering Algorithms},
  journal         = {Comput. Graph. Forum (EG 2021)},
  volume          = {40},
  number          = {2},
  year            = 2021
}
A. Keller P. Gautron J. Vorba I. Georgiev M. Šik E. d'Eon P. Grittmann P. Vévoda I. Kondapaneni
Advances in Monte Carlo rendering: The legacy of Jaroslav Křivánek
Publication Type: Course,
@inproceedings{Keller:2020:RenderingCourse,
  author = {Keller, Alexander and Grittmann, Pascal and Vorba, Ji\v{r}\'{\i} and Georgiev, Iliyan and \v{S}ik, Martin and d'Eon, Eugene and Gautron, Pascal and V\'{e}voda, Petr and Kondapaneni, Ivo},
  title = {Advances in Monte Carlo Rendering: The Legacy of Jaroslav K\v{r}iv\'{a}nek},
  year = {2020},
  isbn = {9781450379724},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  url = {https://doi.org/10.1145/3388769.3407458},
  doi = {10.1145/3388769.3407458},
  abstract = {Jaroslav K\v{r}iv\'{a}nek's research aimed at finding the one robust and efficient light transport simulation algorithm that would handle any given scene with any complexity of transport. He had a clear and unique vision of how to reach this ambitious goal. On his way, he created an impressive track of significant research contributions. In this course, his collaborators will tell the story of Jaroslav's quest for that "one" algorithm and discuss his impact and legacy.},
  booktitle = {ACM SIGGRAPH 2020 Courses},
  articleno = {3},
  numpages = {366},
  location = {Virtual Event, USA},
  series = {SIGGRAPH 2020}
}
A. Rath P. Grittmann Sebastian Herholz Petr Vévoda P. Slusallek J. Křivánek
Variance-Aware Path Guiding
Publication Type: Article, ACM Transactions on Graphics (Proceedings of SIGGRAPH 2020), 39(4): 151:1-151:12, 2020
@article{Rath2020,
  author          = {Rath, Alexander and Grittmann, Pascal and Herholz, Sebastian and V{\'{e}}voda, Petr and Slusallek, Philipp and K{\v{r}}iv{\'{a}}nek, Jaroslav},
  title           = {Variance-Aware Path Guiding},
  journal         = {ACM Transactions on Graphics (Proceedings of SIGGRAPH 2020)},
  pages           = {151:1--151:12},
  volume          = {39},
  number          = {4},
  year            = 2020,
  month           = jul,
  date            = {2020-07-17/2020-07-20},
  doi             = {10.1145/3386569.3392441},
  publisher       = {ACM}
}
P. Grittmann I. Georgiev P. Slusallek J. Křivánek
Variance-Aware Multiple Importance Sampling
Publication Type: Article, ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2019), 38(6): 152:1-152:9, 2019
@article{Grittmann2019,
  author          = {Grittmann, Pascal and Georgiev, Iliyan and Slusallek, Philipp and K{\v{r}}iv{\'{a}}nek, Jaroslav},
  title           = {Variance-Aware Multiple Importance Sampling},
  journal         = {ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2019)},
  pages           = {152:1--152:9},
  volume          = {38},
  number          = {6},
  year            = 2019,
  month           = nov,
  date            = {2019-11-17/2019-11-20},
  doi             = {10.1145/3355089.3356515},
  publisher       = {ACM}
}
I. Kondapaneni P. Vévoda P. Grittmann T. Skřivan P. Slusallek J. Křivánek
Optimal Multiple Importance Sampling
Publication Type: Article, ACM Transactions on Graphics (Proceedings of SIGGRAPH 2019), 38(4): 37:1-37:14, 2019
@article{Kondapaneni2019,
  author          = {Kondapaneni Ivo and V{\'{e}}voda, Petr and Grittmann, Pascal and Sk{\v{r}}ivan, Tom{\'{a}}{\v{s}} and Slusallek, Philipp and K{\v{r}}iv{\'{a}}nek, Jaroslav},
  title           = {Optimal Multiple Importance Sampling},
  journal         = {ACM Transactions on Graphics (Proceedings of SIGGRAPH 2019)},
  pages           = {37:1--37:14},
  volume          = {38},
  number          = {4},
  year            = 2019,
  month           = jul,
  date            = {2019-07-28/2019-08-01},
  doi             = {10.1145/3306346.3323009},
  publisher       = {ACM}
}
P. Grittmann A. Pérard-Gayot P. Slusallek J. Krivanek
Efficient Caustic Rendering with Lightweight Photon Mapping
Publication Type: Article, Computer Graphics Forum (Proceedings of the 29th Eurographics Symposium on Rendering), 37(4): 133-142, 2018
@article {Grittmann:2018:ECR,
  author = {Pascal Grittmann and Ars{\`{e}}ne P{\'{e}}rard-Gayot and Philipp Slusallek and Jaroslav K{\v{r}}iv{\'a}nek},
  title = {Efficient Caustic Rendering with Lightweight Photon Mapping},
  journal = {Computer Graphics Forum},
  note = {EGSR~'18},
  volume = {37},
  number = {4},
  issn = {1467-8659},
  year = {2018},
}
P. Grittmann
Implementing a Parallel Renderer with Vertex Connection and Merging
Publication Type: Article, Bachelor Thesis, Saarland University