Tizian Zeltner  

 



  ![](/sites/default/files/person/Tizian_Zeltner.jpg)

  

 I'm a Senior Research Scientist at [NVIDIA](https://research.nvidia.com/person/tizian-zeltner) interested in appearance modeling, light transport algorithms, and differentiable physically based rendering.

I obtained my PhD from [EPFL](https://ic.epfl.ch/)'s Realistic Graphics Lab where I was advised by [Wenzel Jakob](http://rgl.epfl.ch/people/wjakob/). During my time there, I spent a summer at [Walt Disney Animation Studios](https://disneyanimation.com/) where I contributed to the [Hyperion Renderer](https://disneyanimation.com/technology/hyperion/). Before that, I completed my Master's degree at [ETH Zurich](https://www.ethz.ch/en.html) with a focus on visual computing.

See also my [personal website](https://tizianzeltner.com/) for past projects.



   Research Area(s)

[Computer Graphics](/index.php/research-area/computer-graphics)

[Real-Time Rendering](/index.php/research-area/real-time-rendering)

 

 

  

 Main Field of Interest

[Real-Time Rendering](/index.php/research-area/real-time-rendering)

 

  

 Google Scholar

[https://scholar.google.com/citations?user=GEoa2VIAAAAJ&hl=en](https://scholar.google.com/citations?user=GEoa2VIAAAAJ&hl=en)

 

  

 

 

 



 ### Publications

 

### 2025 

[Radiance Surfaces: Optimizing Surface Representations with a 5D Radiance Field Loss](/publication/2025-07_radiance-surfaces-optimizing-surface-representations-5d-radiance-field-loss)

Ziyi Zhang, Nicolas Roussel, [Thomas Müller](/person/thomas-muller), [Tizian Zeltner](/person/tizian-zeltner), [Merlin Nimier-David](/person/merlin-nimier-david), [Fabrice Rousselle](/person/fabrice-rousselle), Wenzel Jakob



[SIGGRAPH 2025](https://s2025.siggraph.org/)









[Generative Detail Enhancement for Physically Based Materials](/publication/2025-07_generative-detail-enhancement-physically-based-materials)

Saeed Hadadan, [Benedikt Bitterli](/person/benedikt-bitterli), [Tizian Zeltner](/person/tizian-zeltner), [Jan Novák](/person/jan-novak), [Fabrice Rousselle](/person/fabrice-rousselle), [Jacob Munkberg](/person/jacob-munkberg), [Jon Hasselgren](/person/jon-hasselgren), [Bart Wronski](/person/bart-wronski), Matthias Zwicker



[SIGGRAPH 2025](https://s2025.siggraph.org/)









### 2023 

[Microfacet theory for non-uniform heightfields](/index.php/publication/2023-08_microfacet-theory-non-uniform-heightfields)

[Eugene d'Eon](/index.php/person/eugene-d-eon), [Benedikt Bitterli](/index.php/person/benedikt-bitterli), [Andrea Weidlich](/index.php/person/andrea-weidlich), [Tizian Zeltner](/index.php/person/tizian-zeltner)



[SIGGRAPH 2023](https://s2023.siggraph.org/)









[Real-Time Neural Appearance Models](/publication/2023-05_real-time-neural-appearance-models)

[Tizian Zeltner](/person/tizian-zeltner), [Fabrice Rousselle](/person/fabrice-rousselle), [Andrea Weidlich](/person/andrea-weidlich), [Petrik Clarberg](/person/petrik-clarberg), [Jan Novák](/person/jan-novak), [Benedikt Bitterli](/person/benedikt-bitterli), Alex Evans, [Tomáš Davidovič](/person/tomas-davidovic), [Simon Kallweit](/person/simon-kallweit), [Aaron Lefohn](/person/aaron-lefohn)



[TOG (Presented at SIGGRAPH 2024)](https://dl.acm.org/doi/pdf/10.1145/3659577)









[Real-Time Neural Appearance Models](/publication/_real-time-neural-appearance-models)

[Tizian Zeltner](/person/tizian-zeltner), [Fabrice Rousselle](/person/fabrice-rousselle), [Andrea Weidlich](/person/andrea-weidlich), [Petrik Clarberg](/person/petrik-clarberg), [Jan Novák](/person/jan-novak), [Benedikt Bitterli](/person/benedikt-bitterli), Alex Evans, [Tomas Davidovic](/person/tomas-davidovic), [Simon Kallweit](/person/simon-kallweit), [Aaron Lefohn](/person/aaron-lefohn)