# Károly Zsolnai-Fehér - Research Scientist > Two Minute Papers --- ## Pages - [News](https://users.cg.tuwien.ac.at/zsolnai/news/): Even newer news can be read at the bottom of the About page. 😃 2020/06/03 - Our Photorealistic Material Editing... - [About me](https://users.cg.tuwien.ac.at/zsolnai/about/): Independent scientist. Alma mater: Vienna University of Technology, Research Unit of Computer Graphics. E-mail address: @twominutepapers. com (add karoly before... - [Teaching](https://users.cg.tuwien.ac.at/zsolnai/teaching/): 2016. Assignment 4 The course was held by me until 2019. Also, the lecture videos are available for everyone, free... --- ## Posts - [Impressions from the NATO conference](https://users.cg.tuwien.ac.at/zsolnai/impressions-from-the-nato-conference/): A few impressions from this year's NATO conference. - [Speaking at this year's NATO conference](https://users.cg.tuwien.ac.at/zsolnai/speaking-at-this-years-nato-conference/): Here's a nice image from last year's NATO conference. I will speak at this year’s conference in a panel with... - [My talk in the European Political Strategy Centre](https://users.cg.tuwien.ac.at/zsolnai/my-talk-in-the-european-political-strategy-centre/): Just got back home from the wonderful conference on Election Interference in the Digital Age: Building Resilience to Cyber-Enabled Threats... - [SIGGRAPH Talk](https://users.cg.tuwien.ac.at/zsolnai/siggraph-talk/): Just came back from SIGGRAPH 2018 and had an absolutely amazing time there. Thank you so much to many many... - [Sponsoring CESCG](https://users.cg.tuwien.ac.at/zsolnai/sponsoring-cescg/): To give back more to the scientific community, Two Minute Papers recently sponsored CESCG 2018, a conference aimed to teach... - [We're featured in the SIGGRAPH 2018 teaser video!](https://users.cg.tuwien.ac.at/zsolnai/were-featured-in-the-siggraph-2018-teaser-video/): Our work is presented in the official SIGGRAPH 2018 Technical Papers Teaser video! This is as big of an honor... - [2^5](https://users.cg.tuwien.ac.at/zsolnai/32-bday/): One day, two cakes. Mmm! I am totally spoiled. 🙂 - [An exclusive look at a new Google AI paper](https://users.cg.tuwien.ac.at/zsolnai/an-exclusive-look-at-a-new-google-ai-paper/): I usually don’t post Two Minute Papers episodes here, but this time it is different. This work is as fresh... - [YouTube play button](https://users.cg.tuwien.ac.at/zsolnai/youtube-play-button/): It has finally arrived. Thank you so much everyone for all the love and support! - [Jázmin's adventures in the supermarket](https://users.cg.tuwien.ac.at/zsolnai/jazmins-adventures-supermarket/): Provided without comment. 🙂 - [Over Two Million Lectures Given](https://users.cg.tuwien.ac.at/zsolnai/two-million-lectures-given/): We’re way beyond the point where words can describe how stunned I am by this. Thanks so much everyone! 🙂 - [Accelerating Eulerian Fluid Simulation With Convolutional Networks](https://users.cg.tuwien.ac.at/zsolnai/accelerating-eulerian-fluid-simulation-convolutional-networks/): Jonathan Tompson from Google and his colleagues, Kristofer Schlachter, Pablo Sprechmann and Ken Perlin from the New York University have... - [Computational Fluid Dynamics For Simulation of Wind-Terrain Interaction in Flight Simulation](https://users.cg.tuwien.ac.at/zsolnai/computational-fluid-dynamics-simulation-wind-terrain-interaction-flight-simulation/): Manuel Dobusch has completed his Master thesis. It was co-supervised with Michael Wimmer and Eugene Zhang. Click on the image... - [Surface-Only Liquids](https://users.cg.tuwien.ac.at/zsolnai/surface-only-liquids/): Fang Da and his colleagues published an absolutely amazing paper on fluid simulations. Make sure to have a look, it... - [One Million Lectures Given](https://users.cg.tuwien.ac.at/zsolnai/twominutepapers-1million/): I was stunned to realize that we have reached one million views within the first year of Two Minute Papers!... - [30](https://users.cg.tuwien.ac.at/zsolnai/30y/): Two more and it’ll be a nice round number. 🙂 - [Separable Subsurface Scattering in Blender](https://users.cg.tuwien.ac.at/zsolnai/separable-subsurface-scattering-blender/): A Separable Subsurface Scattering implementation has recently appeared in Blender! A big shoutout for Ľuboš Lenčo this fine piece of... - [Jázmin Zsolnai-Fehér](https://users.cg.tuwien.ac.at/zsolnai/jazmin-zsolnai-feher/): We are delighted to share the news with you that our daughter Jázmin Zsolnai-Fehér was born today. The expected time... - [Upsampling Fluid Simulations](https://users.cg.tuwien.ac.at/zsolnai/upsampling-fluid-simulations/): My student, Felix König wrote a term paper on Upsampling Fluid Simulations. Click on the image to check it out! - [Global Illumination in Participating Media](https://users.cg.tuwien.ac.at/zsolnai/adam-papp-global-illumination-in-participating-media/): My student, Ádám Papp wrote a term paper on Global Illumination in Participating Media. Click on the image to check... - [Star Wars - Rey's Theme (Piano cover)](https://users.cg.tuwien.ac.at/zsolnai/3865-2/): A fantastic new composition from John Williams. His work is completely out of this world! It was lots of fun... - [Christmas Greeting Cards](https://users.cg.tuwien.ac.at/zsolnai/christmas-greeting-cards/): 730 Christmas greeting cards to be sent out soon to the friends of our Institute. There was lots of signing... - [Multiple-Scattering Microfacet BSDFs with the Smith Model](https://users.cg.tuwien.ac.at/zsolnai/multiple_scattering_bsdfs_with_the_smith_model/): Eric Heitz and his colleagues published one hell of a paper on rendering microfacet materials. It has lots of beautifully... - [Upcoming Two Minute Papers videos](https://users.cg.tuwien.ac.at/zsolnai/upcoming-two-minute-papers-videos/): Dear Fellow Scholars, Two Minute Papers is continuing, but to save some space, the updates won’t be shown here as... - [Christian Freude - Distinguished Young Alumnus Award](https://users.cg.tuwien.ac.at/zsolnai/christian-freude-distinguished-young-alumnus-award/): My student, Christian Freude won the EPILOG Distinguished Young Alumnus award with his Master thesis, “Extending Separable Subsurface Scattering to... - [Shower Thoughts](https://users.cg.tuwien.ac.at/zsolnai/shower-thoughts/): The number of people who use the term ‘increasing exponentially’ without knowing what it means is increasing exponentially. - [Techniques for an artistic manipulation of light, signal and material](https://users.cg.tuwien.ac.at/zsolnai/sarah-el-sherbiny-term-paper/): My student, Sarah El-Sherbiny wrote a great term paper on techniques for manipulating physically based light transport. Click on the... - [Two Minute Papers - Adaptive Fluid Simulations](https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-adaptive-fluid-simulations/): Two Minute Papers is back with some adaptive fluid simulation awesomeness! - [Ray Tracing / Subsurface Scattering @ Function 2015](https://users.cg.tuwien.ac.at/zsolnai/ray-tracing-subsurface-scattering-function-2015/): The seminar on ray tracing, global illumination and subsurface scattering from Function 2015 is now available! - [Two Minute Papers - Manipulating Photorealistic Renderings](https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-manipulating-photorealistic-renderings/): Photorealistic rendering (also called global illumination) enables us to see how digital objects would look like in real life. It... - [Two Minute Papers - Digital Creatures Learn To Walk](https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-digital-creatures-learn-to-walk/): In this episode, we are going to talk about computer animation, animating bipeds in particular. If we have the geometry... - [Two Minute Papers - Hydrographic 3D Printing](https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-hydrographic-3d-printing/): 3D printing is a technique to create digital objects in real life. This technology is mostly focused on reproducing the... - [Two Minute Papers - Deep Neural Network Learns Van Gogh's Art](https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-deep-neural-network-learns-van-goghs-art/): Artificial neural networks were inspired by the human brain and simulate how neurons behave when they are shown a sensory... - [Two Minute Papers - Time Lapse Videos From Community Photos](https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-time-lapse-videos-from-community-photos/): Building time lapse videos from community photographs is an incredibly difficult and laborious task: these photos were taken at a... - [Two Minute Papers - Simulating Breaking Glass](https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-simulating-breaking-glass/): Time to smash virtual objects in slow motion! There is something inherently exciting about watching breaking glass and other objects.... - [Blender Rendering - Top 7 LuxRender Features](https://users.cg.tuwien.ac.at/zsolnai/blender-rendering-top-7-luxrender-features/): A quick rundown of my 7 favorite LuxRender features. Check it out! - [Two Minute Papers - Artificial Neural Networks and Deep Learning](https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-artificial-neural-networks-and-deep-learning/): Artificial neural networks and deep learning provide us incredibly powerful tools in machine learning that are useful for a variety... - [Dancing Red Man](https://users.cg.tuwien.ac.at/zsolnai/dancing-red-man/): This is the Dancing Red Man, an amazingly creative and uplifting work from my former student, Patrick Fürst. It is... - [Two Minute Papers - Capturing Waves of Light With Femto-photography](https://users.cg.tuwien.ac.at/zsolnai/capturing-waves-of-light-with-femto-photography/): Researchers at MIT and the University of Zaragoza used a technique called femto-photography to capture how a waves of light... - [Two Minute Papers - Creating Stunning Fluid Simulations with Wavelet Turbulence](https://users.cg.tuwien.ac.at/zsolnai/creating-stunning-fluid-simulations-with-wavelet-turbulence/): A quick two minute explanation of one of the greatest fluid papers ever written: the Academy Award-winning Wavelet Turbulence. Creating... - [Wedding Photos](https://users.cg.tuwien.ac.at/zsolnai/wedding-photos/): The photos have finally arrived. We had an amazing time, it’s such a privilege that all our beloved people (many... - [A new interview](https://users.cg.tuwien.ac.at/zsolnai/a-new-interview/): A new interview is now available is now available in Hungarian at my alma mater University website. This is more... - [Our Wedding Dance](https://users.cg.tuwien.ac.at/zsolnai/our-wedding-dance/): A Disney fan is a Disney fan everywhere: the end of our wedding dance from 2 days ago. 🙂 - [New institute logo](https://users.cg.tuwien.ac.at/zsolnai/new-institute-logo/): We have made a new logo for our institute at the TU Wien. It contains many exciting elements of computer... - [Nick Bostrom on Artificial Superintelligence](https://users.cg.tuwien.ac.at/zsolnai/nick-bostrom-on-artificial-superintelligence/): I have heard this argument many times. Nick Bostrom explains beautifully why one shouldn’t think one can just pull the... - [Wedding teaser](https://users.cg.tuwien.ac.at/zsolnai/wedding-teaser/): Soon. 🙂 Photo by Balázs Bergics (click on it to enlarge). - [IST Austria](https://users.cg.tuwien.ac.at/zsolnai/ist-austria/): My colleague Thomas Auzinger was hired by IST Austria, a research facility in a building that used to be an... - [Comments](https://users.cg.tuwien.ac.at/zsolnai/comments/): Just got this comment on our Separable Subsurface Scattering video (click to enlarge it). We’re trying our best, thank you!... - [A productive week](https://users.cg.tuwien.ac.at/zsolnai/a-productive-week/): What a busy week this has been! I was able to get following done: 13 hours of traveling on Monday,... - [Lunch at our institute](https://users.cg.tuwien.ac.at/zsolnai/lunch-at-our-institute/): If only my papers would get such great reviews! 😉 - [CESCG 2015](https://users.cg.tuwien.ac.at/zsolnai/cescg-2015/): A teaser of my upcoming talk at CESCG 2015. It’s going to be lots of fun! 😉 The full program... - [Rendering course lectures going online](https://users.cg.tuwien.ac.at/zsolnai/rendering-course-lectures-going-online/): The Rendering course lectures are going online this year! If you’d like to see updates from the channel, you can... - [Fun with DeepMind's Deep Q-learning](https://users.cg.tuwien.ac.at/zsolnai/fun-with-deepminds-deep-q-learning/): I have had an awful lot of fun with Google DeepMind’s Deep Q-learning algorithm. It plays Atari Breakout solely based... - [Separable Subsurface Scattering in 4k!](https://users.cg.tuwien.ac.at/zsolnai/separable-subsurface-scattering-in-4k/): To demonstrate the simplicity of our technique, we have implemented Separable Subsurface Scattering in a less than 4 kilobyte binary... - [Interviews](https://users.cg.tuwien.ac.at/zsolnai/interviews/): Three new interviews are now available: – DSOGaming in English, – SG. hu in Hungarian, – PC Games Hardware in... - [KÉPAF 2015](https://users.cg.tuwien.ac.at/zsolnai/kepaf_2015/): Just got back from KÉPAF 2015, a domestic computer vision and shape recognition conference. We had a great time with... - [LuxRender at the Oscars!](https://users.cg.tuwien.ac.at/zsolnai/luxrender-at-the-oscars/): Some footage made with LuxRender was shown during the Academy Awards. I have to admit that I reserved this Oscar-award... - [Overview of biased light transport and light source minimization techniques](https://users.cg.tuwien.ac.at/zsolnai/overview-of-biased-light-transport-and-light-source-minimization-techniques/): Kevin Streicher wrote an excellent tech report as a seminar work in computer graphics. Congratulations! - [Extending Separable Subsurface Scattering to Arbitrary Materials](https://users.cg.tuwien.ac.at/zsolnai/extending-separable-subsurface-scattering-to-arbitrary-materials/): Christian Freude, my first Master’s student has graduated with flying colors. Not many can say that their Master’s thesis work... - [Separable Subsurface Scattering headlined](https://users.cg.tuwien.ac.at/zsolnai/separable-subsurface-scattering-headlined/): Our paper, Separable Subsurface Scattering seems to enjoy quite a bit of publicity from all over the world: – Kotaku... - [Happy 2015!](https://users.cg.tuwien.ac.at/zsolnai/happy-2015/): I wish you a Happy New Year for 2015, preferably one that is rich in scientific discoveries, joy and personal... - [Pixel Vienna 9](https://users.cg.tuwien.ac.at/zsolnai/pixel-vienna-9/): I recently had the chance to hold a talk at the Austrian Academy of Sciences for the Pixel Vienna 9... - [Control of Newtonian Fluids With Minimum Force Impact Using the Navier-Stokes Equations](https://users.cg.tuwien.ac.at/zsolnai/control-of-newtonian-fluids-with-minimum-force-impact-using-the-navier-stokes-equations/): Patrick Fürst‘s Bachelor thesis is now available! It is about controlling fluids in real time and the technique is now... - [Transient Rendering and Femto-Photography](https://users.cg.tuwien.ac.at/zsolnai/transient-rendering-and-femto-photography/): There are some really cool advancements in light transport research: first, a technique that enables us to capture the propagation... - [Banding artifacts at EGSR 2014](https://users.cg.tuwien.ac.at/zsolnai/banding-artifacts-at-egsr-2014/): The conference and the venue was second to none, with lots of fellow scientists who are very enthusiastic about rendering... - [Any Questions?](https://users.cg.tuwien.ac.at/zsolnai/any-questions/): Silvana Podaras won both the #1 best presentation and #2 best paper awards at the Central European Seminar on Computer... - [Automated Lighting Design For Photorealistic Rendering](https://users.cg.tuwien.ac.at/zsolnai/automated-lighting-design-for-photorealistic-rendering/): Silvana Podaras, my Bachelor student had her paper accepted to CESCG 2014! It is implemented as a LuxRender module and... - [Dream Symphony Orchestra - Colors of The Wind](https://users.cg.tuwien.ac.at/zsolnai/dream-symphony-orchestra-colors-of-the-wind/): I have arranged and played an orchestra version of the incredible Disney hit song from Pocahontas, Colors of The Wind.... - [Ramsey theory and the Happy Ending problem](https://users.cg.tuwien.ac.at/zsolnai/ramsey-theory-and-the-happy-ending-problem/): ... and searching for order in chaos. - [And the Sci-Tech award goes to...](https://users.cg.tuwien.ac.at/zsolnai/and-the-sci-tech-award-goes-to/): Eric Veach, Matt Pharr, Greg Humphreys and Pat Hanrahan! You can watch their speeches here and here. One could hardly... - [On peer review and paper preprint dissemination](https://users.cg.tuwien.ac.at/zsolnai/on-peer-review-and-paper-preprint-dissemination/): I have recently come across two great pieces: Professor Larry Wasserman and Walter Noll suggests a simple two-tier publishing system.... - [Image-free computer graphics](https://users.cg.tuwien.ac.at/zsolnai/image-free-computer-graphics/): Eugene d’Eon, one of the most influential and prolific authors in subsurface light transport research states an indeed very interesting... - [Progress on Navier-Stokes regularity](https://users.cg.tuwien.ac.at/zsolnai/progress-on-navier-stokes-regularity/): To the very best of my knowledge, Kazakh professor Mukhtarbay Otelbaev submitted a paper on the solution of the Navier-Stokes... - [Wisdom of the Buddha(brot)](https://users.cg.tuwien.ac.at/zsolnai/wisdom-of-the-buddhabrot/): This little gem is among the most fascinating mysteries one can encounter in mathematics. Read below. - [Scalar fields, vector fields, divergence and curl](https://users.cg.tuwien.ac.at/zsolnai/scalar-fields-vector-fields-divergence-and-curl/): These complicated terms bear quite simple and intuitive meanings. Read below. - [Oddtown, Eventown](https://users.cg.tuwien.ac.at/zsolnai/oddtown-eventown/): I have added a short write-up on the oddtown, eventown problems in mathematics. - [Pierre Moreau visiting](https://users.cg.tuwien.ac.at/zsolnai/pierre-moreau-visiting/): Pierre Moreau from Ecole normale supérieure de Cachan is dropping by for a project in global illumination. Welcome! 🙂 - [Silvana Podaras graduation](https://users.cg.tuwien.ac.at/zsolnai/silvana-podaras-graduation/): Silvana Podaras has graduated – the title of her thesis is “Automated Lighting Design For Photorealistic Rendering“, and is available... - [Kevin Streicher graduation](https://users.cg.tuwien.ac.at/zsolnai/kevin-streicher-graduation/): Kevin Streicher has graduated – you can read his thesis, “Interactive Scene Manipulation Techniques for Ray Tracing” here. Congratulations! 🙂 --- ## Custom Layouts --- ## Avia Framework --- ## Portfolio Items - [The Flow From Simulation To Reality - Nature Physics (2022) - Károly Zsolnai-Fehér](https://users.cg.tuwien.ac.at/zsolnai/gfx/the-flow-from-simulation-to-reality-nature-physics-2022-karoly-zsolnai-feher/): In this Commentary article, we talk about simulations that are close to indistinguishable from reality. This is truly a dream... - [Photorealistic Material Editing Through Direct Image Manipulation - Computer Graphics Forum (EGSR 2020) - Károly Zsolnai-Fehér, Peter Wonka, Michael Wimmer](https://users.cg.tuwien.ac.at/zsolnai/gfx/photorealistic-material-editing/): This work enables artists without photorealistic rendering experience to reuse their knowledge in image editing to create a target material.... - [Photorealistic Material Learning and Synthesis - PhD Thesis (2020)](https://users.cg.tuwien.ac.at/zsolnai/gfx/photorealistic-material-learning-and-synthesis/): Light transport simulations are the industry-standard way of creating convincing photorealistic imagery and are widely used in creating animation movies,... - [Gaussian Material Synthesis - ACM Transactions on Graphics (SIGGRAPH 2018) - Károly Zsolnai-Fehér, Peter Wonka, Michael Wimmer](https://users.cg.tuwien.ac.at/zsolnai/gfx/gaussian-material-synthesis/): In this paper, we teach an AI the concept of metallic, translucent materials and more. The newly synthesized materials can... - [Separable Subsurface Scattering - Computer Graphics Forum 2015 (presented at EGSR 2015) - J. Jimenez, K. Zsolnai, A. Jarabo, C. Freude, T. Auzinger, X-C. Wu, J. von der Pahlen, M. Wimmer and D. Gutierrez](https://users.cg.tuwien.ac.at/zsolnai/gfx/separable-subsurface-scattering-with-activision-blizzard/): In this paper we propose two real-time models for simulating subsurface scattering for a large variety of translucent materials, which... - [Automatic Parameter Control for Metropolis Light Transport - Eurographics 2013, Short Paper - Károly Zsolnai, László Szirmay-Kalos (2013)](https://users.cg.tuwien.ac.at/zsolnai/gfx/adaptive_metropolis/): Sophisticated global illumination algorithms usually have several control parameters that need to be set appropriately in order to obtain high... - [Two Minute Papers - What a time to be alive!](https://users.cg.tuwien.ac.at/zsolnai/gfx/two-minute-papers-awesome-research-for-everyone/): Research papers are for experts, Two Minute Papers are for everyone. What a time to be alive! - [Volumetric Path Tracing with Equiangular Samplingin a 2k binary executable file](https://users.cg.tuwien.ac.at/zsolnai/gfx/volumetric-path-tracing-with-equiangular-sampling-in-2k/): This is a GPU implementation of Christopher Kulla and Marcos Fajardo's EGSR paper, "Importance Sampling Techniques for Path Tracing in... - [Rendering Course Videos A course on ray tracing and global illumination](https://users.cg.tuwien.ac.at/zsolnai/gfx/rendering-course/): This rendering course is an MSc-level class at the Technical University of Vienna. It is about ray tracing, photorealistic rendering... - [<strong> Procedural Brush Synthesis Using Markov Fields for Motion Picture Production</strong><br/><em>Won 'Best BSc Thesis' award in the Faculty of Electrical Engineering and Informatics in year 2011 <br/>BSc thesis (2010) </em>](https://users.cg.tuwien.ac.at/zsolnai/gfx/procedural_brush_synthesis_bsc_thesis/): In this paper we discuss a procedural method that examines the brush strokes of painter artists and then generates similar... - [Real-time Control and Stopping of Fluids - Eurographics 2013, Poster - Károly Zsolnai, László Szirmay-Kalos (2013)](https://users.cg.tuwien.ac.at/zsolnai/gfx/real_time_fluid_control_eg/): In this paper we address the fluid control problem, where an arbitrary density distribution (a shape of any kind) is... - [<strong>Egill: The Last Pagan</strong><br/><em>Worked on mathematical algorithms in this movie</em>](https://users.cg.tuwien.ac.at/zsolnai/gfx/egill_the_last_pagan/): More information about this feature-length film is available on IMDB. - [SmallpaintA global illumination renderer in less than 250 lines of C++ code](https://users.cg.tuwien.ac.at/zsolnai/gfx/smallpaint/): Bernhard Rainer Michael Kammer Lukas Geyer Manuel Kröter Silvana Podaras Christian Kössler Michael Probst Florian Spechtenhauser Jean-Baptiste Kaiser Michael Rebec... - [Procedural Generation of Hand-drawn like Line Art Tamás Umenhoffer, Milán Magdics, Károly Zsolnai (2011)](https://users.cg.tuwien.ac.at/zsolnai/gfx/procedural-brush-synthesis-paper/): This paper presents a high quality Non-Photorealistic Rendering (NPR) framework. Our system focuses on artistic line drawing generation and supports... - [Real time fluid simulation and control using the Navier-Stokes equations MSc thesis (2012)](https://users.cg.tuwien.ac.at/zsolnai/gfx/fluid_control_msc_thesis/): When observing natural phenomena in our everyday life involving complex fluid flows, one may feel that it ought to be... - [<strong>A parallel genetic algorithm for Roger Alsing's EvoLisa problem</strong><br/><em>In less than 400 effective lines of C++ code, mostly for educational purposes </em>](https://users.cg.tuwien.ac.at/zsolnai/gfx/mona_lisa_parallel_genetic_algorithm/): This is my take on Roger Alsing's Mona Lisa problem, where the mentioned image has to be reproduced as faithfully... - [<strong>A fast genetic algorithm for the 0-1 knapsack problem</strong> <br/> In less than 150 effective lines of C++ code](https://users.cg.tuwien.ac.at/zsolnai/gfx/knapsack_genetic/): Solve the knapsack problem with 1,000 items and with a weight limit of 50, in less than a second, with... --- # # Detailed Content ## Pages --- ## Posts - Published: 2018-10-31 - Modified: 2019-10-10 - URL: https://users.cg.tuwien.ac.at/zsolnai/my-talk-in-the-european-political-strategy-centre/ - Categories: News Just got back home from the wonderful conference on Election Interference in the Digital Age: Building Resilience to Cyber-Enabled Threats at the European Political Strategy Centre. #EUProtects The objective of my talk was to inform key political decision makers so they can make better decisions for us. I was delighted to see how many brilliant people are working on safeguarding our elections. Our decision makers are listening. Huge thanks to the organizers for the invitation and the amazing organization! If nothing else, you can read my short think piece here (p. 22) and witness my well-rehearsed (but not too stellar) tie folding skills below. --- - Published: 2018-08-20 - Modified: 2018-08-21 - URL: https://users.cg.tuwien.ac.at/zsolnai/siggraph-talk/ - Categories: News - Tags: gaussian material synthesis, siggraph 2018 Just came back from SIGGRAPH 2018 and had an absolutely amazing time there. Thank you so much to many many of you who came to listen to the talk for this paper! Here is the very end: document. createElement('audio'); https://users. cg. tuwien. ac. at/zsolnai/wp/wp-content/uploads/2018/08/karoly_siggraph. mp3 --- - Published: 2018-05-31 - Modified: 2018-05-31 - URL: https://users.cg.tuwien.ac.at/zsolnai/sponsoring-cescg/ - Categories: News To give back more to the scientific community, Two Minute Papers recently sponsored CESCG 2018, a conference aimed to teach young scientists to write and present their papers at international venues. Btw, the man in the image is my advisor, Michael Wimmer. --- - Published: 2018-05-16 - Modified: 2018-05-16 - URL: https://users.cg.tuwien.ac.at/zsolnai/were-featured-in-the-siggraph-2018-teaser-video/ - Categories: News - Tags: gaussian material synthesis, siggraph 2018 Our work is presented in the official SIGGRAPH 2018 Technical Papers Teaser video! This is as big of an honor as it gets. Thank you so much! It appears around the 40-second mark. --- - Published: 2018-05-12 - Modified: 2018-05-13 - URL: https://users.cg.tuwien.ac.at/zsolnai/32-bday/ - Categories: News One day, two cakes. Mmm! I am totally spoiled. :) --- - Published: 2018-04-09 - Modified: 2018-10-29 - URL: https://users.cg.tuwien.ac.at/zsolnai/an-exclusive-look-at-a-new-google-ai-paper/ - Categories: News - Tags: collaboration I usually don't post Two Minute Papers episodes here, but this time it is different. This work is as fresh as it gets because this is the first time I have been given an exclusive look before the paper came out, and this means that this video and the paper itself were published at the same time. I hope you will enjoy it just as much as I did! Note: this is credited in the acknowledgments section of the paper. --- - Published: 2018-03-13 - Modified: 2018-05-13 - URL: https://users.cg.tuwien.ac.at/zsolnai/youtube-play-button/ - Categories: News It has finally arrived. Thank you so much everyone for all the love and support! --- - Published: 2017-04-12 - Modified: 2018-05-13 - URL: https://users.cg.tuwien.ac.at/zsolnai/jazmins-adventures-supermarket/ - Categories: News Provided without comment. :) --- - Published: 2017-02-14 - Modified: 2018-05-13 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-million-lectures-given/ - Categories: News We're way beyond the point where words can describe how stunned I am by this. Thanks so much everyone! :) --- - Published: 2016-11-29 - Modified: 2019-10-12 - URL: https://users.cg.tuwien.ac.at/zsolnai/accelerating-eulerian-fluid-simulation-convolutional-networks/ - Categories: News - Tags: cnn, cnnfluid, cnnfluids, collaboration, convolutional neural network, deep learning, deep neural network, fluid simulation, google brain, ken perlin Jonathan Tompson from Google and his colleagues, Kristofer Schlachter, Pablo Sprechmann and Ken Perlin from the New York University have come up with a really nice technique to teach a convolutional neural network how fluid and smoke simulations work. The project webpage is available here, or you can click on the image below to access the paper. Status: accepted to ICML 2017 (please note that I am in the acknowledgements section and was not a co-author of the paper) --- - Published: 2016-06-24 - Modified: 2018-05-13 - URL: https://users.cg.tuwien.ac.at/zsolnai/computational-fluid-dynamics-simulation-wind-terrain-interaction-flight-simulation/ - Categories: News - Tags: Computational Fluid Dynamics For Simulation of Wind-Terrain Interaction in Flight Simulation, eugene zhang, manuel dobusch, michael wimmer, student work Manuel Dobusch has completed his Master thesis. It was co-supervised with Michael Wimmer and Eugene Zhang. Click on the image below to have a look! --- - Published: 2016-05-19 - Modified: 2018-10-29 - URL: https://users.cg.tuwien.ac.at/zsolnai/surface-only-liquids/ - Categories: News - Tags: collaboration, fluid simulation, liquid simulation, siggraph 2016, surface only liquids, water simulation Fang Da and his colleagues published an absolutely amazing paper on fluid simulations. Make sure to have a look, it is available here (or click on the paper below). I helped a bit with setting up the rendering pipeline and the scenes properly. Status: accepted to ACM SIGGRAPH 2016 (please note that I am in the acknowledgements section and was not a co-author of the paper) --- - Published: 2016-05-14 - Modified: 2018-05-13 - URL: https://users.cg.tuwien.ac.at/zsolnai/twominutepapers-1million/ - Categories: News - Tags: one million, two minute papers I was stunned to realize that we have reached one million views within the first year of Two Minute Papers! I have no idea how it happened, but thanks so much to you Fellow Scholars, I am honored to have supporters like you for the series! --- - Published: 2016-05-12 - Modified: 2018-05-13 - URL: https://users.cg.tuwien.ac.at/zsolnai/30y/ - Categories: News Two more and it'll be a nice round number. :) --- - Published: 2016-05-03 - Modified: 2016-05-03 - URL: https://users.cg.tuwien.ac.at/zsolnai/separable-subsurface-scattering-blender/ - Categories: News - Tags: blender, separable subsurface scattering A Separable Subsurface Scattering implementation has recently appeared in Blender! A big shoutout for Ľuboš Lenčo this fine piece of craftsmanship. Click on the image to have a look! --- - Published: 2016-03-08 - Modified: 2016-03-21 - URL: https://users.cg.tuwien.ac.at/zsolnai/jazmin-zsolnai-feher/ - Categories: News We are delighted to share the news with you that our daughter Jázmin Zsolnai-Fehér was born today. The expected time of arrival for the baby was March 18th, with a significant non-zero variance. As you can see, she is currently lifting weights in her sleep and can't wait to help her father coding neural networks and light transport algorithms. Jázmin is pronounced yah-zmin, which is a fair a bit easier to say than Károly is. Everyone is in good health and we are already working together! --- - Published: 2016-02-05 - Modified: 2016-02-05 - URL: https://users.cg.tuwien.ac.at/zsolnai/upsampling-fluid-simulations/ - Categories: News - Tags: student work My student, Felix König wrote a term paper on Upsampling Fluid Simulations. Click on the image to check it out! --- - Published: 2016-02-05 - Modified: 2016-02-05 - URL: https://users.cg.tuwien.ac.at/zsolnai/adam-papp-global-illumination-in-participating-media/ - Categories: News - Tags: student work My student, Ádám Papp wrote a term paper on Global Illumination in Participating Media. Click on the image to check it out! --- - Published: 2016-01-01 - Modified: 2016-01-01 - URL: https://users.cg.tuwien.ac.at/zsolnai/3865-2/ - Categories: News - Tags: rey's theme, star wars, the force awakens A fantastic new composition from John Williams. His work is completely out of this world! It was lots of fun to play and record this on on December 31st. --- - Published: 2015-12-21 - Modified: 2015-12-21 - URL: https://users.cg.tuwien.ac.at/zsolnai/christmas-greeting-cards/ - Categories: News 730 Christmas greeting cards to be sent out soon to the friends of our Institute. There was lots of signing to be done - such a cool tradition! --- - Published: 2015-11-21 - Modified: 2016-12-01 - URL: https://users.cg.tuwien.ac.at/zsolnai/multiple_scattering_bsdfs_with_the_smith_model/ - Categories: News - Tags: bsdf, collaboration, global illumination, microfacet rendering, Multiple-Scattering Microfacet BSDFs with the Smith Model, photorealistic rendering Eric Heitz and his colleagues published one hell of a paper on rendering microfacet materials. It has lots of beautifully written mathematics, and is really well illustrated, evaluated, and the full source code is also published. Now it comes with a narrated supplementary video. The paper is available here (or click the image below), check it out! Status: accepted to ACM SIGGRAPH 2016 (please note that I am in the acknowledgements section and was not a co-author of the paper, I just helped with the video. Happy to have been a very small part of this! ) --- - Published: 2015-11-16 - Modified: 2015-11-16 - URL: https://users.cg.tuwien.ac.at/zsolnai/upcoming-two-minute-papers-videos/ - Categories: News Dear Fellow Scholars, Two Minute Papers is continuing, but to save some space, the updates won't be shown here as blog posts. Always check here to see if a newer episode pops up or subscribe and/or follow me on twitter / facebook to get notified when a new episode comes out. --- - Published: 2015-11-03 - Modified: 2015-11-03 - URL: https://users.cg.tuwien.ac.at/zsolnai/christian-freude-distinguished-young-alumnus-award/ - Categories: News - Tags: christian freude, student work My student, Christian Freude won the EPILOG Distinguished Young Alumnus award with his Master thesis, "Extending Separable Subsurface Scattering to Arbitrary Materials". Congratulations, great job! :) --- - Published: 2015-11-03 - Modified: 2015-11-03 - URL: https://users.cg.tuwien.ac.at/zsolnai/shower-thoughts/ - Categories: News The number of people who use the term 'increasing exponentially' without knowing what it means is increasing exponentially. --- - Published: 2015-09-26 - Modified: 2016-02-05 - URL: https://users.cg.tuwien.ac.at/zsolnai/sarah-el-sherbiny-term-paper/ - Categories: News - Tags: student work My student, Sarah El-Sherbiny wrote a great term paper on techniques for manipulating physically based light transport. Click on the image to check it out! --- - Published: 2015-09-22 - Modified: 2015-09-22 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-adaptive-fluid-simulations/ - Categories: News - Tags: adaptive fluid simulation, two minute papers Two Minute Papers is back with some adaptive fluid simulation awesomeness! --- - Published: 2015-09-19 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/ray-tracing-subsurface-scattering-function-2015/ - Categories: News - Tags: demoscene, function 2015, global illumination, ray tracing, talk The seminar on ray tracing, global illumination and subsurface scattering from Function 2015 is now available! --- - Published: 2015-09-11 - Modified: 2015-09-11 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-manipulating-photorealistic-renderings/ - Categories: News - Tags: global illumination, manipulation, photorealistic rendering, two minute papers Photorealistic rendering (also called global illumination) enables us to see how digital objects would look like in real life. It is an amazingly powerful tool in the hands of a professional artist, who can create breathtaking images or animations with. However, for the longest time, artists didn't use it in the movie industry because it did not offer a great artistic freedom - after all, it works according to the laws of physics, which are exact. This piece of work enables us to apply artistic edits to photorealistic renderings easily and intuitively. I believe this one has the potential to single-handedly change the landscape of photorealistic rendering on a production scale. --- - Published: 2015-09-08 - Modified: 2015-09-08 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-digital-creatures-learn-to-walk/ - Categories: News - Tags: bipedal walking, computer animation, two minute papers In this episode, we are going to talk about computer animation, animating bipeds in particular. If we have the geometry of a creature, we need to specify the bones, the muscle routings and the muscle activations to make them able to walk. Depending on the body proportions and types, it may require quite a bit of trial and error to build muscle layouts so the creature doesn't collapse. Making them walk is even more difficult! This piece of work not only makes it happen for a variety of bipedal creatures, but the results are robust for a variety of target walking speeds, uneven terrain and other, unpleasant difficulties. --- - Published: 2015-09-01 - Modified: 2015-09-01 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-hydrographic-3d-printing/ - Categories: News - Tags: 3d printing, hydrographic printing, two minute papers 3D printing is a technique to create digital objects in real life. This technology is mostly focused on reproducing the digital geometry itself - colored patterns (textures) still remains a challenge, and we only have very rudimentary technology to do that. Hydrographic printing on 3D surfaces is a really simple technique: you place a film in water, use a chemical activator spray on it, and shove the object in the water. However, since these objects start stretching the film, the technique is not very accurate, and it only helps you putting repetitive patterns on these objects. Computational Hydrographic Printing is a technique that simulates all of these physical forces that are exerted on the film when your desired object is immersed into the water. Then, it creates a new image map taking all of these distortions into account, and this image you can print with your home inkjet printer. The results will be really accurate, close to indistinguishable from the digitally designed object. --- - Published: 2015-08-30 - Modified: 2015-08-30 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-deep-neural-network-learns-van-goghs-art/ - Categories: News - Tags: art, deep learning, deep neural network, machine learning, two minute papers Artificial neural networks were inspired by the human brain and simulate how neurons behave when they are shown a sensory input (e. g. , images, sounds, etc). They are known to be excellent tools for image recognition, any many other problems beyond that - they also excel at weather predictions, breast cancer cell mitosis detection, brain image segmentation and toxicity prediction among many others. Deep learning means that we use an artificial neural network with multiple layers, making it even more powerful for more difficult tasks. This time they have been shown to be apt at reproducing the artistic style of many famous painters, such as Vincent Van Gogh and Pablo Picasso among many others. All the user needs to do is provide an input photograph and a target image from which the artistic style will be learned. --- - Published: 2015-08-25 - Modified: 2015-08-25 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-time-lapse-videos-from-community-photos/ - Categories: News - Tags: time lapse photography, two minute papers Building time lapse videos from community photographs is an incredibly difficult and laborious task: these photos were taken at a different part of the year, from different times of the day, with different viewpoints and cameras. A good algorithm should try to equalize these images and bring them to a common denominator to get rid of the commonly seen flickering effect. Researchers at the University of Washington and Google nailed this regularization in their newest work that they showcased at SIGGRAPH 2015. Check out the video for the details! --- - Published: 2015-08-22 - Modified: 2015-08-22 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-simulating-breaking-glass/ - Categories: News - Tags: breaking glass, simulation, two minute papers Time to smash virtual objects in slow motion! There is something inherently exciting about watching breaking glass and other objects. Researchers in computer graphics also like to have some fun and write simulation programs to smash together a variety of virtual objects in slow motion. However, despite being beautiful, they are physically not correct as many effects are neglected, such as simulating plasticity, bending stiffness, stretching energies and many others. Pfaff et al. 's paper "Adaptive Tearing and Cracking of Thin Sheets" addresses this issue by creating an adaptive simulator that uses more computational resources only around regions where cracks are likely to happen. This new technique enables the simulation of tearing for a variety of materials like cork, foils, metals, vinyl and it also yields physically correct results for glass. The algorithm also lets artists influence the outcome to be in line with their artistic visions. Pfaff et al. 's research paper "Adaptive Tearing and Cracking of Thin Sheets" is available here. --- - Published: 2015-08-18 - Modified: 2015-08-18 - URL: https://users.cg.tuwien.ac.at/zsolnai/blender-rendering-top-7-luxrender-features/ - Categories: News - Tags: blender, luxrender, rendering A quick rundown of my 7 favorite LuxRender features. Check it out! --- - Published: 2015-08-14 - Modified: 2015-08-15 - URL: https://users.cg.tuwien.ac.at/zsolnai/two-minute-papers-artificial-neural-networks-and-deep-learning/ - Categories: News - Tags: deep learning, machine learning, neural networks, two minute papers Artificial neural networks and deep learning provide us incredibly powerful tools in machine learning that are useful for a variety of tasks ranging from image classification to voice translation. So what is all the deep learning rage about? The media seems to be all over the newest neural network research of the DeepMind company that was recently acquired by Google. They used neural networks to create algorithms that are able to play Atari games, learn them like a human would, eventually achieving superhuman performance. Deep learning means that we use artificial neural networks with multiple layers, making it even more powerful for more difficult tasks. These machine learning techniques proved to be useful for many tasks beyond image recognition: they also excel at weather predictions, breast cancer cell mitosis detection, brain image segmentation and toxicity prediction among many others. If you would like to know more about neural networks and deep learning, make sure to check out this talk from Andrew Ng. In Two Minute Papers, I attempt to bring the most awesome research discoveries to everyone a couple minutes at a time. --- - Published: 2015-08-12 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/dancing-red-man/ - Categories: News - Tags: student work This is the Dancing Red Man, an amazingly creative and uplifting work from my former student, Patrick Fürst. It is really staggering how much potential there is in gamification. --- - Published: 2015-08-08 - Modified: 2015-08-14 - URL: https://users.cg.tuwien.ac.at/zsolnai/capturing-waves-of-light-with-femto-photography/ - Categories: News - Tags: femto-photography, siggraph, trillion fps, two minute papers Researchers at MIT and the University of Zaragoza used a technique called femto-photography to capture how a waves of light propagate in space and time. Awesome, isn't it? :) What is femto-photography? To be able to capture how waves of light propagate in space, one would need to build a camera that is able to take one trillion frames per second. At first, this sounds impossible, but researchers at MIT and the University of Zaragoza have managed to crack this nut: in their newest work they published to SIGGRAPH that they call femto-photography, we can observe how a mirror lights up with its image as light propagates from the light source to the camera. All this in slow motion! --- - Published: 2015-08-01 - Modified: 2015-08-14 - URL: https://users.cg.tuwien.ac.at/zsolnai/creating-stunning-fluid-simulations-with-wavelet-turbulence/ - Categories: News - Tags: blender, fluid simulation, siggraph, smoke simulation, two minute papers, wavelet turbulence A quick two minute explanation of one of the greatest fluid papers ever written: the Academy Award-winning Wavelet Turbulence. Creating detailed fluid and smoke simulations in Blender and other modeling software is a slow and laborious process that requires a ton of time and resources. Wavelet Turbulence is a technique that helps achieving similar effects orders of magnitude faster. It is also much lighter on memory and is now widely used in the industry, so it's definitely not an accident that Theodore Kim won an Academy Award (a technical Oscar, if you will) for this SIGGRAPH publication. It is implemented in Blender and is available for everyone free of charge, so make sure to try it out! The paper is available here. --- - Published: 2015-07-27 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/wedding-photos/ - Categories: News - Tags: personal The photos have finally arrived. We had an amazing time, it's such a privilege that all our beloved people (many of whom work abroad) traveled so far to celebrate with us. Click on a photo to enlarge it! --- - Published: 2015-07-17 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/a-new-interview/ - Categories: News - Tags: interview, personal A new interview is now available is now available in Hungarian at my alma mater University website. This is more personal, and is mostly about computer graphics, music, and always seeking perfection. Click here to check it out! --- - Published: 2015-06-23 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/our-wedding-dance/ - Categories: News - Tags: disney wedding, personal A Disney fan is a Disney fan everywhere: the end of our wedding dance from 2 days ago. :) --- - Published: 2015-05-25 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/new-institute-logo/ - Categories: News - Tags: institute, personal We have made a new logo for our institute at the TU Wien. It contains many exciting elements of computer graphics: fluid simulations, rendering and subsurface scattering. ;) --- - Published: 2015-05-21 - Modified: 2015-08-13 - URL: https://users.cg.tuwien.ac.at/zsolnai/nick-bostrom-on-artificial-superintelligence/ - Categories: News - Tags: artificial superintelligence, nick bostrom I have heard this argument many times. Nick Bostrom explains beautifully why one shouldn't think one can just pull the plug on an artificial superintelligence. --- - Published: 2015-05-17 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/wedding-teaser/ - Categories: News - Tags: personal Soon. :) Photo by Balázs Bergics (click on it to enlarge). --- - Published: 2015-05-13 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/ist-austria/ - Categories: News - Tags: institute, personal My colleague Thomas Auzinger was hired by IST Austria, a research facility in a building that used to be an asylum. We got him a fitting present. :) --- - Published: 2015-05-07 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/comments/ - Categories: News - Tags: personal Just got this comment on our Separable Subsurface Scattering video (click to enlarge it). We're trying our best, thank you! :) --- - Published: 2015-05-01 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/a-productive-week/ - Categories: News - Tags: personal What a busy week this has been! I was able to get following done: 13 hours of traveling on Monday, attended to our institute's group photo, reviewed 2 papers (the second is almost done), audio engineered and cut together 10 videos of our rendering course, drawn figures for our SIGGRAPH ASIA submission, held meetings with my students, prepared part of our new interview. And I still have this Friday left! Feeling great and it's getting better. :) --- - Published: 2015-04-13 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/lunch-at-our-institute/ - Categories: News - Tags: institute, personal If only my papers would get such great reviews! ;) --- - Published: 2015-04-11 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/cescg-2015/ - Categories: News - Tags: cescg 2015, personal A teaser of my upcoming talk at CESCG 2015. It's going to be lots of fun! ;) The full program will be up here soon. --- - Published: 2015-03-26 - Modified: 2015-03-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/rendering-course-lectures-going-online/ - Categories: News - Tags: global illumination, rendering course, tu wien The Rendering course lectures are going online this year! If you'd like to see updates from the channel, you can subscribe to it. --- - Published: 2015-03-07 - Modified: 2015-03-08 - URL: https://users.cg.tuwien.ac.at/zsolnai/fun-with-deepminds-deep-q-learning/ - Categories: News - Tags: atari breakout, deep learning, deepmind, google, machine learning, reinforcement learning I have had an awful lot of fun with Google DeepMind's Deep Q-learning algorithm. It plays Atari Breakout solely based on relying the sensory input, and doesn't know anything about the game when starting out. I have also added a patch to fix the visualization when reloading a pre-trained network. The window will appear after the first evaluation batch is done (typically a few minutes). This configuration is able to run Ilya Kuzovkin's version using less than 1GB VRAM. --- - Published: 2015-02-26 - Modified: 2015-02-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/separable-subsurface-scattering-in-4k/ - Categories: News - Tags: 4k, separable subsurface scattering To demonstrate the simplicity of our technique, we have implemented Separable Subsurface Scattering in a less than 4 kilobyte binary executable file. This is the whole thing: Details are available here. Greetings to elites! --- - Published: 2015-02-15 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/interviews/ - Categories: News - Tags: dsogaming, interview, personal, sg.hu Three new interviews are now available: - DSOGaming in English, - SG. hu in Hungarian, - PC Games Hardware in German, Check them out! --- - Published: 2015-02-11 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/kepaf_2015/ - Categories: News - Tags: conference, kepaf 2015, personal Just got back from KÉPAF 2015, a domestic computer vision and shape recognition conference. We had a great time with an electronic poster session and some great outdoor events involving all kinds of horseback riding. Thank you! --- - Published: 2015-02-10 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/luxrender-at-the-oscars/ - Categories: News - Tags: luxrender, personal Some footage made with LuxRender was shown during the Academy Awards. I have to admit that I reserved this Oscar-award image to posts involving any prizes and awards, and now there you go! :) I'm so proud! --- - Published: 2015-02-05 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/overview-of-biased-light-transport-and-light-source-minimization-techniques/ - Categories: News - Tags: star, student work, thesis Kevin Streicher wrote an excellent tech report as a seminar work in computer graphics. Congratulations! --- - Published: 2015-01-14 - Modified: 2019-10-28 - URL: https://users.cg.tuwien.ac.at/zsolnai/extending-separable-subsurface-scattering-to-arbitrary-materials/ - Categories: News - Tags: christian freude, msc thesis, separable subsurface scattering, student work, thesis Christian Freude, my first Master's student has graduated with flying colors. Not many can say that their Master's thesis work is featured in the news. His thesis is available below, and you can find out more about the project here (code, paper and more). Congratulations Christian! --- - Published: 2015-01-13 - Modified: 2016-10-29 - URL: https://users.cg.tuwien.ac.at/zsolnai/separable-subsurface-scattering-headlined/ - Categories: News - Tags: interview, personal, publicity, separable subsurface scattering, sss Our paper, Separable Subsurface Scattering seems to enjoy quite a bit of publicity from all over the world: - Kotaku (EN), - DSOGaming (EN), - EurekAlert! (EN), - Geeks3D (EN), - Scientific Computing (EN), - All of Nothing (EN), - PC Games Hardware (DE), - Game Zone (DE), - Game Contrast (DE), - Medizin & Technik (DE), - Area Games (DE), - TU Wien Press (DE), - TU Austria (DE), - Nickles (DE), - Updatemi (DE), - hi! tech (DE), - Doope! (JP), - Gamer Sky (CN), - Huanqiu (CN), - XXKCW (CN), - Junmii (CN), - Youxizh (CN), - 3DM Game (CN), - Danji 100 (AF), - Gametech (RU), - Shazoo (RU), - BME-VIK (HU), - index (HU) - headlined There also seems to be a bit of buzz on twitter (mirror). I am delighted over the fact that so many people enjoy the beauty in the work we all love so much - the thing I want to do every single day of my life. Let me know if you see more! --- - Published: 2015-01-04 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/happy-2015/ - Categories: News - Tags: personal I wish you a Happy New Year for 2015, preferably one that is rich in scientific discoveries, joy and personal growth (I'm on the right)! --- - Published: 2014-12-17 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/pixel-vienna-9/ - Categories: News - Tags: applause, cédric villani, fields medal, personal, pixel vienna I recently had the chance to hold a talk at the Austrian Academy of Sciences for the Pixel Vienna 9 conference. One rarely has the chance to speak to such a great audience at such a wonderful venue. Here's the applause at the very end of the talk. Thank you! :) https://users. cg. tuwien. ac. at/zsolnai/wp/wp-content/uploads/2014/11/pixel9_applause. wav Ps: this, alongside with the recent talk of Fields medalist Cédric Villani is a good example of the vibrant scientific atmosphere of nowadays in Vienna that I love so much. --- - Published: 2014-10-27 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/control-of-newtonian-fluids-with-minimum-force-impact-using-the-navier-stokes-equations/ - Categories: News - Tags: student work Patrick Fürst's Bachelor thesis is now available! It is about controlling fluids in real time and the technique is now implemented in Blender. Congratulations, good job! The code is also available. For the thesis, click below. --- - Published: 2014-10-13 - Modified: 2014-10-14 - URL: https://users.cg.tuwien.ac.at/zsolnai/transient-rendering-and-femto-photography/ - Categories: News - Tags: femto-photography, global illumination, light transport, siggraph, transient rendering There are some really cool advancements in light transport research: first, a technique that enables us to capture the propagation of light as an electromagnetic wave as it illuminates our world. There is a never-before-seen example I am really fond of: strictly speaking, if you stand in front of a mirror, there is a moment while you're already standing there, but your image in the mirror is not visible yet. This phenomenon exists due to the finite propagation speed of electromagnetic waves and only lasts for a few nanoseconds, and is now caught on tape (around the one minute mark). I never thought this would be possible in my lifetime! Recently, Adrián Jarabo and colleagues built a rendering algorithm that replicates this behavior. It takes quite a bit to get my jaw dropped with novel research works, and it never ceases to amaze me that it still happens all the time. --- - Published: 2014-07-07 - Modified: 2014-07-07 - URL: https://users.cg.tuwien.ac.at/zsolnai/banding-artifacts-at-egsr-2014/ - Categories: News - Tags: egsr 2014, eurographics The conference and the venue was second to none, with lots of fellow scientists who are very enthusiastic about rendering research. However, it seems that the shadows during the event suffered from severe quantization artifacts. Quite ironic, isn't it? :) --- - Published: 2014-05-27 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/any-questions/ - Categories: News - Tags: cescg, student work Silvana Podaras won both the #1 best presentation and #2 best paper awards at the Central European Seminar on Computer Graphics for students (2014) out of more than 20 submissions and talks (link). People went absolutely crazy after the talk and we got pinned down for questions and discussions until very late in the night. All this as a Bachelor student. This is the proudest day of my life. The applause after her talk (it's loud! ): https://users. cg. tuwien. ac. at/zsolnai/wp/wp-content/uploads/2014/05/silvana_talk. mp3 --- - Published: 2014-04-25 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/automated-lighting-design-for-photorealistic-rendering/ - Categories: News - Tags: cescg, global illumination, lightcuts, lighting design, photorealistic rendering, student work Silvana Podaras, my Bachelor student had her paper accepted to CESCG 2014! It is implemented as a LuxRender module and is available here. Be sure to read the attached readme. Congratulations! :) We're continuing this work, so if you decided to pick this up and improve it in any way, let us know! --- - Published: 2014-03-31 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/dream-symphony-orchestra-colors-of-the-wind/ - Categories: News - Tags: disney, dream symphony orchestra, music, personal I have arranged and played an orchestra version of the incredible Disney hit song from Pocahontas, Colors of The Wind. The song is available for download in mp3, and for the fellow audiophiles out there, flac. :) --- - Published: 2014-03-02 - Modified: 2014-03-02 - URL: https://users.cg.tuwien.ac.at/zsolnai/ramsey-theory-and-the-happy-ending-problem/ - Categories: News - Tags: happy end problem, paul erdos, ramsey theory, theoretical mathematics ... and searching for order in chaos. --- - Published: 2014-03-01 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/and-the-sci-tech-award-goes-to/ - Categories: News - Tags: eric veach, greg humphreys, matt pharr, oscar, pat hanrahan, personal, rendering, sci-tech award Eric Veach, Matt Pharr, Greg Humphreys and Pat Hanrahan! You can watch their speeches here and here. One could hardly overestimate the usefulness of their work. Even in the fast-moving field of rendering, Eric's methods have been prevalent for more than one and a half decade now. In this field, we usually borrow techniques from theoretical mathematics and physics after sculpting them here and there to fit a specialized, practical application. It is commonplace that an engineer takes a technique from a mathematician to solve a practical problem, but it's quite rare that an engineer can give back something to the mathematician. With the theory of Multiple Importance Sampling, Eric Veach made such an example, which I have found so far unprecendented. That is, among many others, indeed an inspiring achievement. Furthermore, with the pbrt book of Matt Pharr and Greg Humphreys, we finally have an intuitive, all-encompassing resource for global illumination rendering. It's great to see these people getting proper recognition for their achievements! --- - Published: 2014-02-22 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/on-peer-review-and-paper-preprint-dissemination/ - Categories: News - Tags: arXiv, high energy physics, peer review, personal, publishing I have recently come across two great pieces: Professor Larry Wasserman and Walter Noll suggests a simple two-tier publishing system. CERN physicists show statistics on the viability of arXiv in High Energy Physics (HEP) research, where they found the following: as of 2008, more than 95% of the peer-reviewed HEP journal articles are also published on the arXiv, the highest impact factor articles are both submitted to a journal and published on arXiv, articles that are submitted to arXiv before review obtain 20% of their first 2-year citation count by the time the journal article is accepted, and they also enjoy more than five times as many citations during this 2-year period, scientists read the arXiv more often than journal websites. Physicists have been doing this for more than two decades now. If we are to improve our publishing system in computer graphics research, this is definitely a promising direction. Why don't we? --- - Published: 2014-02-21 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/image-free-computer-graphics/ - Categories: News - Tags: computer graphics, personal, review, subsurface scattering Eugene d'Eon, one of the most influential and prolific authors in subsurface light transport research states an indeed very interesting and thought-provoking thought in his review of the Photon Beam Diffusion paper: "It seems unclear to me that graphics papers like this one need images anymore. Carefully presented plots do much more to convince the reader of the accuracy of the proposed transport theory approximations. Showing selected results where a half-space searchlight solution is applied approximately to curved geometry, while pretty, does little to convince the reader of the method's overall robustness. " Just keep it nice and mathematical: if you have the plots of the convolution kernel you are using for rendering images, that is basically all you need to show - for rendered images, one can find an angle and a lighting setup where any possible algorithm can come out on top. If we wish to call computer graphics research scientific, it is definitely an argument that I find worthy of some discussion. --- - Published: 2014-02-13 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/progress-on-navier-stokes-regularity/ - Categories: News - Tags: millenium problem, navier-stokes, personal, theoretical mathematics To the very best of my knowledge, Kazakh professor Mukhtarbay Otelbaev submitted a paper on the solution of the Navier-Stokes regularity Millenium problem. It seems that he had found an upper bound for a unique solution for the periodic boundary condition formulation of the problem. For the readers who are familiar with the notation, the main result is stated as follows. This result is under review as we speak. In the end, we are hoping for a solution that is constructive, i. e. an algorithm that provides the solution itself, not only shows the existence of it - if so, this work might be an important stepping stone in this process. The translation of the main result without the proof is available here. Terence Tao also has some interesting recent results. --- - Published: 2014-02-05 - Modified: 2014-02-06 - URL: https://users.cg.tuwien.ac.at/zsolnai/wisdom-of-the-buddhabrot/ - Categories: News - Tags: buddha, buddhabrot, fractal, wisdom This little gem is among the most fascinating mysteries one can encounter in mathematics. Read below. --- - Published: 2014-02-05 - Modified: 2014-02-06 - URL: https://users.cg.tuwien.ac.at/zsolnai/scalar-fields-vector-fields-divergence-and-curl/ - Categories: News - Tags: curl, divergence, scalar field, vector field These complicated terms bear quite simple and intuitive meanings. Read below. --- - Published: 2014-02-05 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/oddtown-eventown/ - Categories: News - Tags: eventown, oddtown, personal I have added a short write-up on the oddtown, eventown problems in mathematics. --- - Published: 2014-02-01 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/pierre-moreau-visiting/ - Categories: News - Tags: personal Pierre Moreau from Ecole normale supérieure de Cachan is dropping by for a project in global illumination. Welcome! :) --- - Published: 2014-01-30 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/silvana-podaras-graduation/ - Categories: News - Tags: graduation, personal Silvana Podaras has graduated – the title of her thesis is "Automated Lighting Design For Photorealistic Rendering", and is available here. The paper version and the aftermath of this work is also available. Be sure to check them out! Congratulations! :) --- - Published: 2013-08-30 - Modified: 2015-09-26 - URL: https://users.cg.tuwien.ac.at/zsolnai/kevin-streicher-graduation/ - Categories: News - Tags: graduation, personal Kevin Streicher has graduated – you can read his thesis, "Interactive Scene Manipulation Techniques for Ray Tracing" here. Congratulations! :) --- --- ## Custom Layouts --- ## Avia Framework --- ## Portfolio Items ---